*.info
*.class
cscope.*
+.dirstamp
/configure
/aclocal.m4
/src/libmsgpack/Makefile
/src/libringbuffer/Makefile
/src/python-lttngust/Makefile
-/src/snprintf/Makefile
/src/Makefile
/tests/Makefile
/tests/benchmark/Makefile
src/python-lttngust/lttngust/version.py
src/python-lttngust/Makefile
src/python-lttngust/setup.py
- src/snprintf/Makefile
tests/benchmark/Makefile
tests/compile/ctf-types/Makefile
tests/compile/hello.cxx/Makefile
SUBDIRS = \
common \
- snprintf \
libringbuffer \
liblttng-ust-comm \
libcounter \
# SPDX-License-Identifier: LGPL-2.1-only
+AUTOMAKE_OPTIONS = subdir-objects
+
### ###
### Global private headers ###
### ###
# Used by liblttng-ust-fd
noinst_HEADERS += \
ust-fd.h
+
+### ###
+## Convenience libraries ##
+### ###
+
+noinst_LTLIBRARIES = \
+ snprintf/libsnprintf.la \
+ libcommon.la
+
+# snprintf
+snprintf_libsnprintf_la_SOURCES = \
+ snprintf/fflush.c \
+ snprintf/fileext.h \
+ snprintf/floatio.h \
+ snprintf/fvwrite.c \
+ snprintf/fvwrite.h \
+ snprintf/local.h \
+ snprintf/mbrtowc_sb.c \
+ snprintf/snprintf.c \
+ snprintf/various.h \
+ snprintf/vfprintf.c \
+ snprintf/wcio.h \
+ snprintf/wsetup.c
+
+# Common library
+libcommon_la_SOURCES = \
+ logging.c \
+ logging.h \
+ patient.c
+
+libcommon_la_LIBADD = \
+ snprintf/libsnprintf.la
+
+EXTRA_DIST = snprintf/README
--- /dev/null
+/*
+ * SPDX-License-Identifier: LGPL-2.1-only
+ *
+ * Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ */
+
+#include "common/logging.h"
+
+volatile enum ust_err_loglevel ust_err_loglevel;
+
+void ust_err_init(void)
+{
+ char *ust_debug;
+
+ if (ust_err_loglevel == UST_ERR_LOGLEVEL_UNKNOWN) {
+ /*
+ * This getenv is not part of lttng_ust_getenv() because it
+ * is required to print ERR() performed during getenv
+ * initialization.
+ */
+ ust_debug = getenv("LTTNG_UST_DEBUG");
+ if (ust_debug)
+ ust_err_loglevel = UST_ERR_LOGLEVEL_DEBUG;
+ else
+ ust_err_loglevel = UST_ERR_LOGLEVEL_NORMAL;
+ }
+}
--- /dev/null
+/*
+ * SPDX-License-Identifier: LGPL-2.1-or-later
+ *
+ * Copyright (C) 2009 Pierre-Marc Fournier
+ * Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ */
+
+#include <stddef.h>
+
+/* write() */
+#include <unistd.h>
+
+/* writev() */
+#include <sys/uio.h>
+
+/* send() */
+#include <sys/types.h>
+#include <sys/socket.h>
+
+#include <errno.h>
+
+#include "common/patient.h"
+
+/*
+ * This write is patient because it restarts if it was incomplete.
+ */
+
+ssize_t ust_patient_write(int fd, const void *buf, size_t count)
+{
+ const char *bufc = (const char *) buf;
+ int result;
+
+ for(;;) {
+ result = write(fd, bufc, count);
+ if (result == -1 && errno == EINTR) {
+ continue;
+ }
+ if (result <= 0) {
+ return result;
+ }
+ count -= result;
+ bufc += result;
+
+ if (count == 0) {
+ break;
+ }
+ }
+
+ return bufc-(const char *)buf;
+}
+
+/*
+ * The `struct iovec *iov` is not `const` because we modify it to support
+ * partial writes.
+ */
+ssize_t ust_patient_writev(int fd, struct iovec *iov, int iovcnt)
+{
+ ssize_t written, total_written = 0;
+ int curr_element_idx = 0;
+
+ for(;;) {
+ written = writev(fd, iov + curr_element_idx,
+ iovcnt - curr_element_idx);
+ if (written == -1 && errno == EINTR) {
+ continue;
+ }
+ if (written <= 0) {
+ return written;
+ }
+
+ total_written += written;
+
+ /*
+ * If it's not the last element in the vector and we have
+ * written more than the current element size, then increment
+ * the current element index until we reach the element that
+ * was partially written.
+ */
+ while (curr_element_idx < iovcnt &&
+ written >= iov[curr_element_idx].iov_len) {
+ written -= iov[curr_element_idx].iov_len;
+ curr_element_idx++;
+ }
+
+ /* Maybe we are done. */
+ if (curr_element_idx >= iovcnt) {
+ break;
+ }
+
+ /* Update the current element base and size. */
+ iov[curr_element_idx].iov_base += written;
+ iov[curr_element_idx].iov_len -= written;
+ }
+
+ return total_written;
+}
+
+ssize_t ust_patient_send(int fd, const void *buf, size_t count, int flags)
+{
+ const char *bufc = (const char *) buf;
+ int result;
+
+ for(;;) {
+ result = send(fd, bufc, count, flags);
+ if (result == -1 && errno == EINTR) {
+ continue;
+ }
+ if (result <= 0) {
+ return result;
+ }
+ count -= result;
+ bufc += result;
+
+ if (count == 0) {
+ break;
+ }
+ }
+
+ return bufc - (const char *) buf;
+}
--- /dev/null
+This is a signal safe version of snprintf/vsnprintf. The code is
+originally from the OpenBSD libc.
--- /dev/null
+/* $OpenBSD: fflush.c,v 1.7 2009/10/22 01:23:16 guenther Exp $ */
+/*
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (C) 1990, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Chris Torek.
+ */
+
+#include <errno.h>
+#include <stdio.h>
+#include "local.h"
+
+/* Flush a single file, or (if fp is NULL) all files. */
+int ust_safe_fflush(LTTNG_UST_LFILE *fp)
+{
+
+ if (fp == NULL)
+ return 0;
+// return (_fwalk(__sflush));
+ if ((fp->_flags & (__SWR | __SRW)) == 0) {
+ errno = EBADF;
+ return (EOF);
+ }
+ return (__sflush(fp));
+}
+
+int
+__sflush(LTTNG_UST_LFILE *fp)
+{
+ unsigned char *p;
+ int n, t;
+
+ t = fp->_flags;
+ if ((t & __SWR) == 0)
+ return (0);
+
+ if ((p = fp->_bf._base) == NULL)
+ return (0);
+
+ n = fp->_p - p; /* write this much */
+
+ /*
+ * Set these immediately to avoid problems with longjmp and to allow
+ * exchange buffering (via setvbuf) in user write function.
+ */
+ fp->_p = p;
+ fp->_w = t & (__SLBF|__SNBF) ? 0 : fp->_bf._size;
+
+ for (; n > 0; n -= t, p += t) {
+ t = (*fp->_write)(fp->_cookie, (char *)p, n);
+ if (t <= 0) {
+ fp->_flags |= __SERR;
+ return (EOF);
+ }
+ }
+ return (0);
+}
--- /dev/null
+/* $OpenBSD: fileext.h,v 1.2 2005/06/17 20:40:32 espie Exp $ */
+/* $NetBSD: fileext.h,v 1.5 2003/07/18 21:46:41 nathanw Exp $ */
+
+/*
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (C)2001 Citrus Project,
+ * All rights reserved.
+ *
+ * $Citrus$
+ */
+
+/*
+ * file extension
+ */
+struct __lttng_ust_sfileext {
+ struct __lttng_ust_sbuf _ub; /* ungetc buffer */
+ struct wchar_io_data _wcio; /* wide char io status */
+};
+
+#define _EXT(fp) ((struct __lttng_ust_sfileext *)((fp)->_ext._base))
+#define _UB(fp) _EXT(fp)->_ub
+
+#define _FILEEXT_INIT(fp) \
+do { \
+ _UB(fp)._base = NULL; \
+ _UB(fp)._size = 0; \
+ WCIO_INIT(fp); \
+} while (0)
+
+#define _FILEEXT_SETUP(f, fext) \
+do { \
+ (f)->_ext._base = (unsigned char *)(fext); \
+ _FILEEXT_INIT(f); \
+} while (0)
--- /dev/null
+/* $OpenBSD: floatio.h,v 1.4 2008/09/07 20:36:08 martynas Exp $ */
+
+/*
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (C) 1990, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Chris Torek.
+ */
+
+/*
+ * Floating point scanf/printf (input/output) definitions.
+ */
+
+/* 11-bit exponent (VAX G floating point) is 308 decimal digits */
+#define MAXEXP 308
+/* 128 bit fraction takes up 39 decimal digits; max reasonable precision */
+#define MAXFRACT 39
+
+/*
+ * MAXEXPDIG is the maximum number of decimal digits needed to store a
+ * floating point exponent in the largest supported format. It should
+ * be ceil(log10(LDBL_MAX_10_EXP)) or, if hexadecimal floating point
+ * conversions are supported, ceil(log10(LDBL_MAX_EXP)). But since it
+ * is presently never greater than 5 in practice, we fudge it.
+ */
+#define MAXEXPDIG 6
+#if LDBL_MAX_EXP > 999999
+#error "floating point buffers too small"
+#endif
+
+char *__hdtoa(double, const char *, int, int *, int *, char **)
+ __attribute__((visibility("hidden")));
+
+char *__hldtoa(long double, const char *, int, int *, int *, char **)
+ __attribute__((visibility("hidden")));
+
+char *__ldtoa(long double *, int, int, int *, int *, char **)
+ __attribute__((visibility("hidden")));
--- /dev/null
+/* $OpenBSD: fvwrite.c,v 1.16 2009/10/22 01:23:16 guenther Exp $ */
+/*
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (C) 1990, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Chris Torek.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include "local.h"
+#include "fvwrite.h"
+#include "various.h"
+
+/*
+ * Write some memory regions. Return zero on success, EOF on error.
+ *
+ * This routine is large and unsightly, but most of the ugliness due
+ * to the three different kinds of output buffering is handled here.
+ */
+int
+__sfvwrite(LTTNG_UST_LFILE *fp, struct __lttng_ust_suio *uio)
+{
+ size_t len;
+ char *p;
+ struct __lttng_ust_siov *iov;
+ int w, s;
+ char *nl;
+ int nlknown, nldist;
+
+ if ((len = uio->uio_resid) == 0)
+ return (0);
+ /* make sure we can write */
+ if (cantwrite(fp)) {
+ errno = EBADF;
+ return (EOF);
+ }
+
+#define MIN(a, b) ((a) < (b) ? (a) : (b))
+#define COPY(n) (void)memcpy((void *)fp->_p, (void *)p, (size_t)(n))
+
+ iov = uio->uio_iov;
+ p = iov->iov_base;
+ len = iov->iov_len;
+ iov++;
+#define GETIOV(extra_work) \
+ while (len == 0) { \
+ extra_work; \
+ p = iov->iov_base; \
+ len = iov->iov_len; \
+ iov++; \
+ }
+ if (fp->_flags & __SNBF) {
+ /*
+ * Unbuffered: write up to BUFSIZ bytes at a time.
+ */
+ do {
+ GETIOV(;);
+ w = (*fp->_write)(fp->_cookie, p, MIN(len, BUFSIZ));
+ if (w <= 0)
+ goto err;
+ p += w;
+ len -= w;
+ } while ((uio->uio_resid -= w) != 0);
+ } else if ((fp->_flags & __SLBF) == 0) {
+ /*
+ * Fully buffered: fill partially full buffer, if any,
+ * and then flush. If there is no partial buffer, write
+ * one _bf._size byte chunk directly (without copying).
+ *
+ * String output is a special case: write as many bytes
+ * as fit, but pretend we wrote everything. This makes
+ * snprintf() return the number of bytes needed, rather
+ * than the number used, and avoids its write function
+ * (so that the write function can be invalid).
+ */
+ do {
+ GETIOV(;);
+ if ((fp->_flags & (__SALC | __SSTR)) ==
+ (__SALC | __SSTR) && fp->_w < len) {
+ size_t blen = fp->_p - fp->_bf._base;
+ unsigned char *_base;
+ int _size;
+
+ /* Allocate space exponentially. */
+ _size = fp->_bf._size;
+ do {
+ _size = (_size << 1) + 1;
+ } while (_size < blen + len);
+ _base = realloc(fp->_bf._base, _size + 1);
+ if (_base == NULL)
+ goto err;
+ fp->_w += _size - fp->_bf._size;
+ fp->_bf._base = _base;
+ fp->_bf._size = _size;
+ fp->_p = _base + blen;
+ }
+ w = fp->_w;
+ if (fp->_flags & __SSTR) {
+ if (len < w)
+ w = len;
+ COPY(w); /* copy MIN(fp->_w,len), */
+ fp->_w -= w;
+ fp->_p += w;
+ w = len; /* but pretend copied all */
+ } else if (fp->_p > fp->_bf._base && len > w) {
+ /* fill and flush */
+ COPY(w);
+ /* fp->_w -= w; */ /* unneeded */
+ fp->_p += w;
+ if (ust_safe_fflush(fp))
+ goto err;
+ } else if (len >= (w = fp->_bf._size)) {
+ /* write directly */
+ w = (*fp->_write)(fp->_cookie, p, w);
+ if (w <= 0)
+ goto err;
+ } else {
+ /* fill and done */
+ w = len;
+ COPY(w);
+ fp->_w -= w;
+ fp->_p += w;
+ }
+ p += w;
+ len -= w;
+ } while ((uio->uio_resid -= w) != 0);
+ } else {
+ /*
+ * Line buffered: like fully buffered, but we
+ * must check for newlines. Compute the distance
+ * to the first newline (including the newline),
+ * or `infinity' if there is none, then pretend
+ * that the amount to write is MIN(len,nldist).
+ */
+ nlknown = 0;
+ nldist = 0; /* XXX just to keep gcc happy */
+ do {
+ GETIOV(nlknown = 0);
+ if (!nlknown) {
+ nl = memchr((void *)p, '\n', len);
+ nldist = nl ? nl + 1 - p : len + 1;
+ nlknown = 1;
+ }
+ s = MIN(len, nldist);
+ w = fp->_w + fp->_bf._size;
+ if (fp->_p > fp->_bf._base && s > w) {
+ COPY(w);
+ /* fp->_w -= w; */
+ fp->_p += w;
+ if (ust_safe_fflush(fp))
+ goto err;
+ } else if (s >= (w = fp->_bf._size)) {
+ w = (*fp->_write)(fp->_cookie, p, w);
+ if (w <= 0)
+ goto err;
+ } else {
+ w = s;
+ COPY(w);
+ fp->_w -= w;
+ fp->_p += w;
+ }
+ if ((nldist -= w) == 0) {
+ /* copied the newline: flush and forget */
+ if (ust_safe_fflush(fp))
+ goto err;
+ nlknown = 0;
+ }
+ p += w;
+ len -= w;
+ } while ((uio->uio_resid -= w) != 0);
+ }
+ return (0);
+
+err:
+ fp->_flags |= __SERR;
+ return (EOF);
+}
--- /dev/null
+/* $OpenBSD: fvwrite.h,v 1.5 2003/06/02 20:18:37 millert Exp $ */
+
+/*
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (C) 1990, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Chris Torek.
+ */
+
+/*
+ * I/O descriptors for __sfvwrite().
+ */
+#include <stddef.h>
+
+struct __lttng_ust_siov {
+ void *iov_base;
+ size_t iov_len;
+};
+struct __lttng_ust_suio {
+ struct __lttng_ust_siov *uio_iov;
+ int uio_iovcnt;
+ int uio_resid;
+};
+
+extern int __sfvwrite(LTTNG_UST_LFILE *, struct __lttng_ust_suio *)
+ __attribute__((visibility("hidden")));
--- /dev/null
+/* $OpenBSD: local.h,v 1.14 2009/10/22 01:23:16 guenther Exp $ */
+
+/*
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (C) 1990, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Chris Torek.
+ */
+
+/*
+ * Information local to this implementation of stdio,
+ * in particular, macros and private variables.
+ */
+
+#include <stdio.h>
+#include <wchar.h>
+#include "various.h"
+#include "wcio.h"
+#include "fileext.h"
+
+int __sflush(LTTNG_UST_LFILE *)
+ __attribute__((visibility("hidden")));
+
+LTTNG_UST_LFILE *__sfp(void)
+ __attribute__((visibility("hidden")));
+
+int __srefill(LTTNG_UST_LFILE *)
+ __attribute__((visibility("hidden")));
+
+int __sread(void *, char *, int)
+ __attribute__((visibility("hidden")));
+
+int __swrite(void *, const char *, int)
+ __attribute__((visibility("hidden")));
+
+fpos_t __sseek(void *, fpos_t, int)
+ __attribute__((visibility("hidden")));
+
+int __sclose(void *)
+ __attribute__((visibility("hidden")));
+
+void __sinit(void)
+ __attribute__((visibility("hidden")));
+
+void _cleanup(void)
+ __attribute__((visibility("hidden")));
+
+void __smakebuf(LTTNG_UST_LFILE *)
+ __attribute__((visibility("hidden")));
+
+int __swhatbuf(LTTNG_UST_LFILE *, size_t *, int *)
+ __attribute__((visibility("hidden")));
+
+int _fwalk(int (*)(LTTNG_UST_LFILE *))
+ __attribute__((visibility("hidden")));
+
+int __swsetup(LTTNG_UST_LFILE *)
+ __attribute__((visibility("hidden")));
+
+int __sflags(const char *, int *)
+ __attribute__((visibility("hidden")));
+
+wint_t __fgetwc_unlock(LTTNG_UST_LFILE *)
+ __attribute__((visibility("hidden")));
+
+extern void __atexit_register_cleanup(void (*)(void))
+ __attribute__((visibility("hidden")));
+
+extern int __sdidinit
+ __attribute__((visibility("hidden")));
+
+/*
+ * Return true if the given LTTNG_UST_LFILE cannot be written now.
+ */
+#define cantwrite(fp) \
+ ((((fp)->_flags & __SWR) == 0 || (fp)->_bf._base == NULL) && \
+ __swsetup(fp))
+
+/*
+ * Test whether the given stdio file has an active ungetc buffer;
+ * release such a buffer, without restoring ordinary unread data.
+ */
+#define HASUB(fp) (_UB(fp)._base != NULL)
+#define FREEUB(fp) { \
+ if (_UB(fp)._base != (fp)->_ubuf) \
+ free(_UB(fp)._base); \
+ _UB(fp)._base = NULL; \
+}
+
+/*
+ * test for an fgetln() buffer.
+ */
+#define HASLB(fp) ((fp)->_lb._base != NULL)
+#define FREELB(fp) { \
+ free((char *)(fp)->_lb._base); \
+ (fp)->_lb._base = NULL; \
+}
--- /dev/null
+/* $OpenBSD: mbrtowc_sb.c,v 1.4 2005/11/27 20:03:06 cloder Exp $ */
+/* $NetBSD: multibyte_sb.c,v 1.4 2003/08/07 16:43:04 agc Exp $ */
+
+/*
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (C) 1991 The Regents of the University of California.
+ * All rights reserved.
+ */
+
+#include <errno.h>
+#include <stdlib.h>
+#include <wchar.h>
+
+#include "various.h"
+
+/*ARGSUSED*/
+size_t
+ust_safe_mbrtowc(wchar_t *pwc, const char *s, size_t n,
+ mbstate_t *ps __attribute__((unused)))
+{
+
+ /* pwc may be NULL */
+ /* s may be NULL */
+ /* ps appears to be unused */
+
+ if (s == NULL)
+ return 0;
+ if (n == 0)
+ return (size_t)-1;
+ if (pwc)
+ *pwc = (wchar_t)(unsigned char)*s;
+ return (*s != '\0');
+}
--- /dev/null
+/* $OpenBSD: snprintf.c,v 1.16 2009/10/22 01:23:16 guenther Exp $ */
+/*
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (C) 1990, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Chris Torek.
+ */
+
+#include <limits.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdarg.h>
+#include "local.h"
+#include "common/safe-snprintf.h"
+
+#define DUMMY_LEN 1
+
+int ust_safe_vsnprintf(char *str, size_t n, const char *fmt, va_list ap)
+{
+ int ret;
+ char dummy[DUMMY_LEN];
+ LTTNG_UST_LFILE f;
+ struct __lttng_ust_sfileext fext;
+
+ /* While snprintf(3) specifies size_t stdio uses an int internally */
+ if (n > INT_MAX)
+ n = INT_MAX;
+ /* Stdio internals do not deal correctly with zero length buffer */
+ if (n == 0) {
+ str = dummy;
+ n = DUMMY_LEN;
+ }
+ _FILEEXT_SETUP(&f, &fext);
+ f._file = -1;
+ f._flags = __SWR | __SSTR;
+ f._bf._base = f._p = (unsigned char *)str;
+ f._bf._size = f._w = n - 1;
+ ret = ust_safe_vfprintf(&f, fmt, ap);
+ *f._p = '\0';
+ return (ret);
+}
+
+int ust_safe_snprintf(char *str, size_t n, const char *fmt, ...)
+{
+ va_list ap;
+ int ret;
+
+ va_start(ap, fmt);
+ ret = ust_safe_vsnprintf(str, n, fmt, ap);
+ va_end(ap);
+
+ return ret;
+}
--- /dev/null
+/*
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (C) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Chris Torek.
+ */
+
+#ifndef UST_SNPRINTF_VARIOUS_H
+#define UST_SNPRINTF_VARIOUS_H
+
+#include <stdarg.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <wchar.h>
+
+struct __lttng_ust_sbuf {
+ unsigned char *_base;
+ int _size;
+};
+
+/*
+ * stdio state variables.
+ *
+ * The following always hold:
+ *
+ * if (_flags&(__SLBF|__SWR)) == (__SLBF|__SWR),
+ * _lbfsize is -_bf._size, else _lbfsize is 0
+ * if _flags&__SRD, _w is 0
+ * if _flags&__SWR, _r is 0
+ *
+ * This ensures that the getc and putc macros (or inline functions) never
+ * try to write or read from a file that is in `read' or `write' mode.
+ * (Moreover, they can, and do, automatically switch from read mode to
+ * write mode, and back, on "r+" and "w+" files.)
+ *
+ * _lbfsize is used only to make the inline line-buffered output stream
+ * code as compact as possible.
+ *
+ * _ub, _up, and _ur are used when ungetc() pushes back more characters
+ * than fit in the current _bf, or when ungetc() pushes back a character
+ * that does not match the previous one in _bf. When this happens,
+ * _ub._base becomes non-nil (i.e., a stream has ungetc() data iff
+ * _ub._base!=NULL) and _up and _ur save the current values of _p and _r.
+ */
+typedef struct __lttng_ust_sFILE {
+ unsigned char *_p; /* current position in (some) buffer */
+ int _r; /* read space left for getc() */
+ int _w; /* write space left for putc() */
+ short _flags; /* flags, below; this FILE is free if 0 */
+ short _file; /* fileno, if Unix descriptor, else -1 */
+ struct __lttng_ust_sbuf _bf; /* the buffer (at least 1 byte, if !NULL) */
+ int _lbfsize; /* 0 or -_bf._size, for inline putc */
+
+ /* operations */
+ void *_cookie; /* cookie passed to io functions */
+ int (*_close)(void *);
+ int (*_read)(void *, char *, int);
+ fpos_t (*_seek)(void *, fpos_t, int);
+ int (*_write)(void *, const char *, int);
+
+ /* extension data, to avoid further ABI breakage */
+ struct __lttng_ust_sbuf _ext;
+ /* data for long sequences of ungetc() */
+ unsigned char *_up; /* saved _p when _p is doing ungetc data */
+ int _ur; /* saved _r when _r is counting ungetc data */
+
+ /* tricks to meet minimum requirements even when malloc() fails */
+ unsigned char _ubuf[3]; /* guarantee an ungetc() buffer */
+ unsigned char _nbuf[1]; /* guarantee a getc() buffer */
+
+ /* separate buffer for fgetln() when line crosses buffer boundary */
+ struct __lttng_ust_sbuf _lb; /* buffer for fgetln() */
+
+ /* Unix stdio files get aligned to block boundaries on fseek() */
+ int _blksize; /* stat.st_blksize (may be != _bf._size) */
+ fpos_t _offset; /* current lseek offset */
+} LTTNG_UST_LFILE;
+
+#define __SLBF 0x0001 /* line buffered */
+#define __SNBF 0x0002 /* unbuffered */
+#define __SRD 0x0004 /* OK to read */
+#define __SWR 0x0008 /* OK to write */
+ /* RD and WR are never simultaneously asserted */
+#define __SRW 0x0010 /* open for reading & writing */
+#define __SEOF 0x0020 /* found EOF */
+#define __SERR 0x0040 /* found error */
+#define __SMBF 0x0080 /* _buf is from malloc */
+#define __SAPP 0x0100 /* fdopen()ed in append mode */
+#define __SSTR 0x0200 /* this is an sprintf/snprintf string */
+#define __SOPT 0x0400 /* do fseek() optimisation */
+#define __SNPT 0x0800 /* do not do fseek() optimisation */
+#define __SOFF 0x1000 /* set iff _offset is in fact correct */
+#define __SMOD 0x2000 /* true => fgetln modified _p text */
+#define __SALC 0x4000 /* allocate string space dynamically */
+
+#define __sferror(p) (((p)->_flags & __SERR) != 0)
+
+extern int ust_safe_fflush(LTTNG_UST_LFILE *fp)
+ __attribute__((visibility("hidden")));
+
+extern int ust_safe_vfprintf(LTTNG_UST_LFILE *fp, const char *fmt0, va_list ap)
+ __attribute__((visibility("hidden")));
+
+extern size_t ust_safe_mbrtowc(wchar_t *pwc, const char *s, size_t n, mbstate_t *ps)
+ __attribute__((visibility("hidden")));
+
+#endif /* UST_SNPRINTF_VARIOUS_H */
--- /dev/null
+/* $OpenBSD: vfprintf.c,v 1.57 2009/10/28 21:15:02 naddy Exp $ */
+/*
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (C) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Chris Torek.
+ */
+
+/*
+ * Actual printf innards.
+ *
+ * This code is large and complicated...
+ */
+
+//#define FLOATING_POINT
+
+#include <sys/types.h>
+#include <sys/mman.h>
+
+#include <errno.h>
+#include <limits.h>
+#include <stdarg.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <wchar.h>
+
+#include "local.h"
+#include "fvwrite.h"
+#include "various.h"
+
+static char null_str[] = "(null)";
+static char bad_base_str[] = "bug in ust_safe_vfprintf: bad base";
+
+union arg {
+ int intarg;
+ unsigned int uintarg;
+ long longarg;
+ unsigned long ulongarg;
+ long long longlongarg;
+ unsigned long long ulonglongarg;
+ ptrdiff_t ptrdiffarg;
+ size_t sizearg;
+ size_t ssizearg;
+ intmax_t intmaxarg;
+ uintmax_t uintmaxarg;
+ void *pvoidarg;
+ char *pchararg;
+ signed char *pschararg;
+ short *pshortarg;
+ int *pintarg;
+ long *plongarg;
+ long long *plonglongarg;
+ ptrdiff_t *pptrdiffarg;
+ ssize_t *pssizearg;
+ intmax_t *pintmaxarg;
+#ifdef FLOATING_POINT
+ double doublearg;
+ long double longdoublearg;
+#endif
+};
+
+static int __find_arguments(const char *fmt0, va_list ap, union arg **argtable,
+ size_t *argtablesiz);
+static int __grow_type_table(unsigned char **typetable, int *tablesize);
+
+/*
+ * Flush out all the vectors defined by the given uio,
+ * then reset it so that it can be reused.
+ */
+static int
+__sprint(LTTNG_UST_LFILE *fp, struct __lttng_ust_suio *uio)
+{
+ int err;
+
+ if (uio->uio_resid == 0) {
+ uio->uio_iovcnt = 0;
+ return (0);
+ }
+ err = __sfvwrite(fp, uio);
+ uio->uio_resid = 0;
+ uio->uio_iovcnt = 0;
+ return (err);
+}
+
+/*
+ * Helper function for `fprintf to unbuffered unix file': creates a
+ * temporary buffer. We only work on write-only files; this avoids
+ * worries about ungetc buffers and so forth.
+ */
+//static int
+//__sbprintf(LTTNG_UST_LFILE *fp, const char *fmt, va_list ap)
+//{
+// int ret;
+// LTTNG_UST_LFILE fake;
+// struct __sfileext fakeext;
+// unsigned char buf[BUFSIZ];
+//
+// _FILEEXT_SETUP(&fake, &fakeext);
+// /* copy the important variables */
+// fake._flags = fp->_flags & ~__SNBF;
+// fake._file = fp->_file;
+// fake._cookie = fp->_cookie;
+// fake._write = fp->_write;
+//
+// /* set up the buffer */
+// fake._bf._base = fake._p = buf;
+// fake._bf._size = fake._w = sizeof(buf);
+// fake._lbfsize = 0; /* not actually used, but Just In Case */
+//
+// /* do the work, then copy any error status */
+// ret = ust_safe_vfprintf(&fake, fmt, ap);
+// if (ret >= 0 && fflush(&fake))
+// ret = EOF;
+// if (fake._flags & __SERR)
+// fp->_flags |= __SERR;
+// return (ret);
+//}
+
+
+#ifdef FLOATING_POINT
+#include <float.h>
+#include <locale.h>
+#include <math.h>
+#include "floatio.h"
+
+#define DEFPREC 6
+
+extern char *__dtoa(double, int, int, int *, int *, char **);
+extern void __freedtoa(char *);
+static int exponent(char *, int, int);
+#endif /* FLOATING_POINT */
+
+/*
+ * The size of the buffer we use as scratch space for integer
+ * conversions, among other things. Technically, we would need the
+ * most space for base 10 conversions with thousands' grouping
+ * characters between each pair of digits. 100 bytes is a
+ * conservative overestimate even for a 128-bit uintmax_t.
+ */
+#define BUF 100
+
+#define STATIC_ARG_TBL_SIZE 8 /* Size of static argument table. */
+
+
+/*
+ * Macros for converting digits to letters and vice versa
+ */
+#define to_digit(c) ((c) - '0')
+#define is_digit(c) ((unsigned)to_digit(c) <= 9)
+#define to_char(n) ((n) + '0')
+
+/*
+ * Flags used during conversion.
+ */
+#define ALT 0x0001 /* alternate form */
+#define LADJUST 0x0004 /* left adjustment */
+#define LONGDBL 0x0008 /* long double; unimplemented */
+#define LONGINT 0x0010 /* long integer */
+#define LLONGINT 0x0020 /* long long integer */
+#define SHORTINT 0x0040 /* short integer */
+#define ZEROPAD 0x0080 /* zero (as opposed to blank) pad */
+#define FPT 0x0100 /* Floating point number */
+#define PTRINT 0x0200 /* (unsigned) ptrdiff_t */
+#define SIZEINT 0x0400 /* (signed) size_t */
+#define CHARINT 0x0800 /* 8 bit integer */
+#define MAXINT 0x1000 /* largest integer size (intmax_t) */
+
+int ust_safe_vfprintf(LTTNG_UST_LFILE *fp, const char *fmt0, va_list ap)
+{
+ char *fmt; /* format string */
+ int ch; /* character from fmt */
+ int n, n2; /* handy integers (short term usage) */
+ char *cp; /* handy char pointer (short term usage) */
+ struct __lttng_ust_siov *iovp; /* for PRINT macro */
+ int flags; /* flags as above */
+ int ret; /* return value accumulator */
+ int width; /* width from format (%8d), or 0 */
+ int prec; /* precision from format; <0 for N/A */
+ char sign; /* sign prefix (' ', '+', '-', or \0) */
+ wchar_t wc;
+ mbstate_t ps;
+#ifdef FLOATING_POINT
+ /*
+ * We can decompose the printed representation of floating
+ * point numbers into several parts, some of which may be empty:
+ *
+ * [+|-| ] [0x|0X] MMM . NNN [e|E|p|P] [+|-] ZZ
+ * A B ---C--- D E F
+ *
+ * A: 'sign' holds this value if present; '\0' otherwise
+ * B: ox[1] holds the 'x' or 'X'; '\0' if not hexadecimal
+ * C: cp points to the string MMMNNN. Leading and trailing
+ * zeros are not in the string and must be added.
+ * D: expchar holds this character; '\0' if no exponent, e.g. %f
+ * F: at least two digits for decimal, at least one digit for hex
+ */
+ char *decimal_point = localeconv()->decimal_point;
+ int signflag; /* true if float is negative */
+ union { /* floating point arguments %[aAeEfFgG] */
+ double dbl;
+ long double ldbl;
+ } fparg;
+ int expt; /* integer value of exponent */
+ char expchar; /* exponent character: [eEpP\0] */
+ char *dtoaend; /* pointer to end of converted digits */
+ int expsize; /* character count for expstr */
+ int lead; /* sig figs before decimal or group sep */
+ int ndig; /* actual number of digits returned by dtoa */
+ char expstr[MAXEXPDIG+2]; /* buffer for exponent string: e+ZZZ */
+ char *dtoaresult = NULL;
+#endif
+
+ uintmax_t _umax; /* integer arguments %[diouxX] */
+ enum { OCT, DEC, HEX } base; /* base for %[diouxX] conversion */
+ int dprec; /* a copy of prec if %[diouxX], 0 otherwise */
+ int realsz; /* field size expanded by dprec */
+ int size; /* size of converted field or string */
+ const char *xdigs = NULL; /* digits for %[xX] conversion */
+#define NIOV 8
+ struct __lttng_ust_suio uio; /* output information: summary */
+ struct __lttng_ust_siov iov[NIOV];/* ... and individual io vectors */
+ char buf[BUF]; /* buffer with space for digits of uintmax_t */
+ char ox[2]; /* space for 0x; ox[1] is either x, X, or \0 */
+ union arg *argtable; /* args, built due to positional arg */
+ union arg statargtable[STATIC_ARG_TBL_SIZE];
+ size_t argtablesiz;
+ int nextarg; /* 1-based argument index */
+ va_list orgap; /* original argument pointer */
+
+ /*
+ * Choose PADSIZE to trade efficiency vs. size. If larger printf
+ * fields occur frequently, increase PADSIZE and make the initialisers
+ * below longer.
+ */
+#define PADSIZE 16 /* pad chunk size */
+ static char blanks[PADSIZE] =
+ {' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' '};
+ static char zeroes[PADSIZE] =
+ {'0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0'};
+
+ static const char xdigs_lower[16] = "0123456789abcdef";
+ static const char xdigs_upper[16] = "0123456789ABCDEF";
+
+ /*
+ * BEWARE, these `goto error' on error, and PAD uses `n'.
+ */
+#define PRINT(ptr, len) do { \
+ iovp->iov_base = (ptr); \
+ iovp->iov_len = (len); \
+ uio.uio_resid += (len); \
+ iovp++; \
+ if (++uio.uio_iovcnt >= NIOV) { \
+ if (__sprint(fp, &uio)) \
+ goto error; \
+ iovp = iov; \
+ } \
+} while (0)
+#define PAD(howmany, with) do { \
+ if ((n = (howmany)) > 0) { \
+ while (n > PADSIZE) { \
+ PRINT(with, PADSIZE); \
+ n -= PADSIZE; \
+ } \
+ PRINT(with, n); \
+ } \
+} while (0)
+#define PRINTANDPAD(p, ep, len, with) do { \
+ n2 = (ep) - (p); \
+ if (n2 > (len)) \
+ n2 = (len); \
+ if (n2 > 0) \
+ PRINT((p), n2); \
+ PAD((len) - (n2 > 0 ? n2 : 0), (with)); \
+} while(0)
+#define FLUSH() do { \
+ if (uio.uio_resid && __sprint(fp, &uio)) \
+ goto error; \
+ uio.uio_iovcnt = 0; \
+ iovp = iov; \
+} while (0)
+
+ /*
+ * To extend shorts properly, we need both signed and unsigned
+ * argument extraction methods.
+ */
+#define SARG() \
+ ((intmax_t)(flags&MAXINT ? GETARG(intmax_t) : \
+ flags&LLONGINT ? GETARG(long long) : \
+ flags&LONGINT ? GETARG(long) : \
+ flags&PTRINT ? GETARG(ptrdiff_t) : \
+ flags&SIZEINT ? GETARG(ssize_t) : \
+ flags&SHORTINT ? (short)GETARG(int) : \
+ flags&CHARINT ? (__signed char)GETARG(int) : \
+ GETARG(int)))
+#define UARG() \
+ ((uintmax_t)(flags&MAXINT ? GETARG(uintmax_t) : \
+ flags&LLONGINT ? GETARG(unsigned long long) : \
+ flags&LONGINT ? GETARG(unsigned long) : \
+ flags&PTRINT ? (uintptr_t)GETARG(ptrdiff_t) : /* XXX */ \
+ flags&SIZEINT ? GETARG(size_t) : \
+ flags&SHORTINT ? (unsigned short)GETARG(int) : \
+ flags&CHARINT ? (unsigned char)GETARG(int) : \
+ GETARG(unsigned int)))
+
+ /*
+ * Append a digit to a value and check for overflow.
+ */
+#define APPEND_DIGIT(val, dig) do { \
+ if ((val) > INT_MAX / 10) \
+ goto overflow; \
+ (val) *= 10; \
+ if ((val) > INT_MAX - to_digit((dig))) \
+ goto overflow; \
+ (val) += to_digit((dig)); \
+} while (0)
+
+ /*
+ * Get * arguments, including the form *nn$. Preserve the nextarg
+ * that the argument can be gotten once the type is determined.
+ */
+#define GETASTER(val) \
+ n2 = 0; \
+ cp = fmt; \
+ while (is_digit(*cp)) { \
+ APPEND_DIGIT(n2, *cp); \
+ cp++; \
+ } \
+ if (*cp == '$') { \
+ int hold = nextarg; \
+ if (argtable == NULL) { \
+ argtable = statargtable; \
+ __find_arguments(fmt0, orgap, &argtable, &argtablesiz); \
+ } \
+ nextarg = n2; \
+ val = GETARG(int); \
+ nextarg = hold; \
+ fmt = ++cp; \
+ } else { \
+ val = GETARG(int); \
+ }
+
+/*
+* Get the argument indexed by nextarg. If the argument table is
+* built, use it to get the argument. If its not, get the next
+* argument (and arguments must be gotten sequentially).
+*/
+#define GETARG(type) \
+ ((argtable != NULL) ? *((type*)(&argtable[nextarg++])) : \
+ (nextarg++, va_arg(ap, type)))
+
+ _SET_ORIENTATION(fp, -1);
+ /* sorry, fprintf(read_only_file, "") returns EOF, not 0 */
+ if (cantwrite(fp)) {
+ errno = EBADF;
+ return (EOF);
+ }
+
+ /* optimise fprintf(stderr) (and other unbuffered Unix files) */
+// if ((fp->_flags & (__SNBF|__SWR|__SRW)) == (__SNBF|__SWR) &&
+// fp->_file >= 0)
+// return (__sbprintf(fp, fmt0, ap));
+
+ fmt = (char *)fmt0;
+ argtable = NULL;
+ nextarg = 1;
+ va_copy(orgap, ap);
+ uio.uio_iov = iovp = iov;
+ uio.uio_resid = 0;
+ uio.uio_iovcnt = 0;
+ ret = 0;
+
+ memset(&ps, 0, sizeof(ps));
+ /*
+ * Scan the format for conversions (`%' character).
+ */
+ for (;;) {
+ cp = fmt;
+ while ((n = ust_safe_mbrtowc(&wc, fmt, MB_CUR_MAX, &ps)) > 0) {
+ fmt += n;
+ if (wc == '%') {
+ fmt--;
+ break;
+ }
+ }
+ if (fmt != cp) {
+ ptrdiff_t m = fmt - cp;
+ if (m < 0 || m > INT_MAX - ret)
+ goto overflow;
+ PRINT(cp, m);
+ ret += m;
+ }
+ if (n <= 0)
+ goto done;
+ fmt++; /* skip over '%' */
+
+ flags = 0;
+ dprec = 0;
+ width = 0;
+ prec = -1;
+ sign = '\0';
+ ox[1] = '\0';
+
+rflag: ch = *fmt++;
+reswitch: switch (ch) {
+ case ' ':
+ /*
+ * ``If the space and + flags both appear, the space
+ * flag will be ignored.''
+ * -- ANSI X3J11
+ */
+ if (!sign)
+ sign = ' ';
+ goto rflag;
+ case '#':
+ flags |= ALT;
+ goto rflag;
+ case '\'':
+ /* grouping not implemented */
+ goto rflag;
+ case '*':
+ /*
+ * ``A negative field width argument is taken as a
+ * - flag followed by a positive field width.''
+ * -- ANSI X3J11
+ * They don't exclude field widths read from args.
+ */
+ GETASTER(width);
+ if (width >= 0)
+ goto rflag;
+ if (width == INT_MIN)
+ goto overflow;
+ width = -width;
+ /* FALLTHROUGH */
+ case '-':
+ flags |= LADJUST;
+ goto rflag;
+ case '+':
+ sign = '+';
+ goto rflag;
+ case '.':
+ if ((ch = *fmt++) == '*') {
+ GETASTER(n);
+ prec = n < 0 ? -1 : n;
+ goto rflag;
+ }
+ n = 0;
+ while (is_digit(ch)) {
+ APPEND_DIGIT(n, ch);
+ ch = *fmt++;
+ }
+ if (ch == '$') {
+ nextarg = n;
+ if (argtable == NULL) {
+ argtable = statargtable;
+ __find_arguments(fmt0, orgap,
+ &argtable, &argtablesiz);
+ }
+ goto rflag;
+ }
+ prec = n;
+ goto reswitch;
+ case '0':
+ /*
+ * ``Note that 0 is taken as a flag, not as the
+ * beginning of a field width.''
+ * -- ANSI X3J11
+ */
+ flags |= ZEROPAD;
+ goto rflag;
+ case '1': case '2': case '3': case '4':
+ case '5': case '6': case '7': case '8': case '9':
+ n = 0;
+ do {
+ APPEND_DIGIT(n, ch);
+ ch = *fmt++;
+ } while (is_digit(ch));
+ if (ch == '$') {
+ nextarg = n;
+ if (argtable == NULL) {
+ argtable = statargtable;
+ __find_arguments(fmt0, orgap,
+ &argtable, &argtablesiz);
+ }
+ goto rflag;
+ }
+ width = n;
+ goto reswitch;
+#ifdef FLOATING_POINT
+ case 'L':
+ flags |= LONGDBL;
+ goto rflag;
+#endif
+ case 'h':
+ if (*fmt == 'h') {
+ fmt++;
+ flags |= CHARINT;
+ } else {
+ flags |= SHORTINT;
+ }
+ goto rflag;
+ case 'j':
+ flags |= MAXINT;
+ goto rflag;
+ case 'l':
+ if (*fmt == 'l') {
+ fmt++;
+ flags |= LLONGINT;
+ } else {
+ flags |= LONGINT;
+ }
+ goto rflag;
+ case 'q':
+ flags |= LLONGINT;
+ goto rflag;
+ case 't':
+ flags |= PTRINT;
+ goto rflag;
+ case 'z':
+ flags |= SIZEINT;
+ goto rflag;
+ case 'c':
+ *(cp = buf) = GETARG(int);
+ size = 1;
+ sign = '\0';
+ break;
+ case 'D':
+ flags |= LONGINT;
+ /*FALLTHROUGH*/
+ case 'd':
+ case 'i':
+ _umax = SARG();
+ if ((intmax_t)_umax < 0) {
+ _umax = -_umax;
+ sign = '-';
+ }
+ base = DEC;
+ goto number;
+#ifdef FLOATING_POINT
+ case 'a':
+ case 'A':
+ if (ch == 'a') {
+ ox[1] = 'x';
+ xdigs = xdigs_lower;
+ expchar = 'p';
+ } else {
+ ox[1] = 'X';
+ xdigs = xdigs_upper;
+ expchar = 'P';
+ }
+ if (prec >= 0)
+ prec++;
+ if (dtoaresult)
+ __freedtoa(dtoaresult);
+ if (flags & LONGDBL) {
+ fparg.ldbl = GETARG(long double);
+ dtoaresult = cp =
+ __hldtoa(fparg.ldbl, xdigs, prec,
+ &expt, &signflag, &dtoaend);
+ if (dtoaresult == NULL) {
+ errno = ENOMEM;
+ goto error;
+ }
+ } else {
+ fparg.dbl = GETARG(double);
+ dtoaresult = cp =
+ __hdtoa(fparg.dbl, xdigs, prec,
+ &expt, &signflag, &dtoaend);
+ if (dtoaresult == NULL) {
+ errno = ENOMEM;
+ goto error;
+ }
+ }
+ if (prec < 0)
+ prec = dtoaend - cp;
+ if (expt == INT_MAX)
+ ox[1] = '\0';
+ goto fp_common;
+ case 'e':
+ case 'E':
+ expchar = ch;
+ if (prec < 0) /* account for digit before decpt */
+ prec = DEFPREC + 1;
+ else
+ prec++;
+ goto fp_begin;
+ case 'f':
+ case 'F':
+ expchar = '\0';
+ goto fp_begin;
+ case 'g':
+ case 'G':
+ expchar = ch - ('g' - 'e');
+ if (prec == 0)
+ prec = 1;
+fp_begin:
+ if (prec < 0)
+ prec = DEFPREC;
+ if (dtoaresult)
+ __freedtoa(dtoaresult);
+ if (flags & LONGDBL) {
+ fparg.ldbl = GETARG(long double);
+ dtoaresult = cp =
+ __ldtoa(&fparg.ldbl, expchar ? 2 : 3, prec,
+ &expt, &signflag, &dtoaend);
+ if (dtoaresult == NULL) {
+ errno = ENOMEM;
+ goto error;
+ }
+ } else {
+ fparg.dbl = GETARG(double);
+ dtoaresult = cp =
+ __dtoa(fparg.dbl, expchar ? 2 : 3, prec,
+ &expt, &signflag, &dtoaend);
+ if (dtoaresult == NULL) {
+ errno = ENOMEM;
+ goto error;
+ }
+ if (expt == 9999)
+ expt = INT_MAX;
+ }
+fp_common:
+ if (signflag)
+ sign = '-';
+ if (expt == INT_MAX) { /* inf or nan */
+ if (*cp == 'N') {
+ cp = (ch >= 'a') ? "nan" : "NAN";
+ sign = '\0';
+ } else
+ cp = (ch >= 'a') ? "inf" : "INF";
+ size = 3;
+ flags &= ~ZEROPAD;
+ break;
+ }
+ flags |= FPT;
+ ndig = dtoaend - cp;
+ if (ch == 'g' || ch == 'G') {
+ if (expt > -4 && expt <= prec) {
+ /* Make %[gG] smell like %[fF] */
+ expchar = '\0';
+ if (flags & ALT)
+ prec -= expt;
+ else
+ prec = ndig - expt;
+ if (prec < 0)
+ prec = 0;
+ } else {
+ /*
+ * Make %[gG] smell like %[eE], but
+ * trim trailing zeroes if no # flag.
+ */
+ if (!(flags & ALT))
+ prec = ndig;
+ }
+ }
+ if (expchar) {
+ expsize = exponent(expstr, expt - 1, expchar);
+ size = expsize + prec;
+ if (prec > 1 || flags & ALT)
+ ++size;
+ } else {
+ /* space for digits before decimal point */
+ if (expt > 0)
+ size = expt;
+ else /* "0" */
+ size = 1;
+ /* space for decimal pt and following digits */
+ if (prec || flags & ALT)
+ size += prec + 1;
+ lead = expt;
+ }
+ break;
+#endif /* FLOATING_POINT */
+ case 'n':
+ if (flags & LLONGINT)
+ *GETARG(long long *) = ret;
+ else if (flags & LONGINT)
+ *GETARG(long *) = ret;
+ else if (flags & SHORTINT)
+ *GETARG(short *) = ret;
+ else if (flags & CHARINT)
+ *GETARG(__signed char *) = ret;
+ else if (flags & PTRINT)
+ *GETARG(ptrdiff_t *) = ret;
+ else if (flags & SIZEINT)
+ *GETARG(ssize_t *) = ret;
+ else if (flags & MAXINT)
+ *GETARG(intmax_t *) = ret;
+ else
+ *GETARG(int *) = ret;
+ continue; /* no output */
+ case 'O':
+ flags |= LONGINT;
+ /*FALLTHROUGH*/
+ case 'o':
+ _umax = UARG();
+ base = OCT;
+ goto nosign;
+ case 'p':
+ /*
+ * ``The argument shall be a pointer to void. The
+ * value of the pointer is converted to a sequence
+ * of printable characters, in an implementation-
+ * defined manner.''
+ * -- ANSI X3J11
+ */
+ /* NOSTRICT */
+ _umax = (u_long)GETARG(void *);
+ base = HEX;
+ xdigs = xdigs_lower;
+ ox[1] = 'x';
+ goto nosign;
+ case 's':
+ if ((cp = GETARG(char *)) == NULL)
+ cp = null_str;
+ if (prec >= 0) {
+ /*
+ * can't use strlen; can only look for the
+ * NUL in the first `prec' characters, and
+ * strlen() will go further.
+ */
+ char *p = memchr(cp, 0, prec);
+
+ size = p ? (p - cp) : prec;
+ } else {
+ size_t len;
+
+ if ((len = strlen(cp)) > INT_MAX)
+ goto overflow;
+ size = (int)len;
+ }
+ sign = '\0';
+ break;
+ case 'U':
+ flags |= LONGINT;
+ /*FALLTHROUGH*/
+ case 'u':
+ _umax = UARG();
+ base = DEC;
+ goto nosign;
+ case 'X':
+ xdigs = xdigs_upper;
+ goto hex;
+ case 'x':
+ xdigs = xdigs_lower;
+hex: _umax = UARG();
+ base = HEX;
+ /* leading 0x/X only if non-zero */
+ if (flags & ALT && _umax != 0)
+ ox[1] = ch;
+
+ /* unsigned conversions */
+nosign: sign = '\0';
+ /*
+ * ``... diouXx conversions ... if a precision is
+ * specified, the 0 flag will be ignored.''
+ * -- ANSI X3J11
+ */
+number: if ((dprec = prec) >= 0)
+ flags &= ~ZEROPAD;
+
+ /*
+ * ``The result of converting a zero value with an
+ * explicit precision of zero is no characters.''
+ * -- ANSI X3J11
+ */
+ cp = buf + BUF;
+ if (_umax != 0 || prec != 0) {
+ /*
+ * Unsigned mod is hard, and unsigned mod
+ * by a constant is easier than that by
+ * a variable; hence this switch.
+ */
+ switch (base) {
+ case OCT:
+ do {
+ *--cp = to_char(_umax & 7);
+ _umax >>= 3;
+ } while (_umax);
+ /* handle octal leading 0 */
+ if (flags & ALT && *cp != '0')
+ *--cp = '0';
+ break;
+
+ case DEC:
+ /* many numbers are 1 digit */
+ while (_umax >= 10) {
+ *--cp = to_char(_umax % 10);
+ _umax /= 10;
+ }
+ *--cp = to_char(_umax);
+ break;
+
+ case HEX:
+ do {
+ *--cp = xdigs[_umax & 15];
+ _umax >>= 4;
+ } while (_umax);
+ break;
+
+ default:
+ cp = bad_base_str;
+ size = strlen(cp);
+ goto skipsize;
+ }
+ }
+ size = buf + BUF - cp;
+ if (size > BUF) /* should never happen */
+ abort();
+ skipsize:
+ break;
+ default: /* "%?" prints ?, unless ? is NUL */
+ if (ch == '\0')
+ goto done;
+ /* pretend it was %c with argument ch */
+ cp = buf;
+ *cp = ch;
+ size = 1;
+ sign = '\0';
+ break;
+ }
+
+ /*
+ * All reasonable formats wind up here. At this point, `cp'
+ * points to a string which (if not flags&LADJUST) should be
+ * padded out to `width' places. If flags&ZEROPAD, it should
+ * first be prefixed by any sign or other prefix; otherwise,
+ * it should be blank padded before the prefix is emitted.
+ * After any left-hand padding and prefixing, emit zeroes
+ * required by a decimal %[diouxX] precision, then print the
+ * string proper, then emit zeroes required by any leftover
+ * floating precision; finally, if LADJUST, pad with blanks.
+ *
+ * Compute actual size, so we know how much to pad.
+ * size excludes decimal prec; realsz includes it.
+ */
+ realsz = dprec > size ? dprec : size;
+ if (sign)
+ realsz++;
+ if (ox[1])
+ realsz+= 2;
+
+ /* right-adjusting blank padding */
+ if ((flags & (LADJUST|ZEROPAD)) == 0)
+ PAD(width - realsz, blanks);
+
+ /* prefix */
+ if (sign)
+ PRINT(&sign, 1);
+ if (ox[1]) { /* ox[1] is either x, X, or \0 */
+ ox[0] = '0';
+ PRINT(ox, 2);
+ }
+
+ /* right-adjusting zero padding */
+ if ((flags & (LADJUST|ZEROPAD)) == ZEROPAD)
+ PAD(width - realsz, zeroes);
+
+ /* leading zeroes from decimal precision */
+ PAD(dprec - size, zeroes);
+
+ /* the string or number proper */
+#ifdef FLOATING_POINT
+ if ((flags & FPT) == 0) {
+ PRINT(cp, size);
+ } else { /* glue together f_p fragments */
+ if (!expchar) { /* %[fF] or sufficiently short %[gG] */
+ if (expt <= 0) {
+ PRINT(zeroes, 1);
+ if (prec || flags & ALT)
+ PRINT(decimal_point, 1);
+ PAD(-expt, zeroes);
+ /* already handled initial 0's */
+ prec += expt;
+ } else {
+ PRINTANDPAD(cp, dtoaend, lead, zeroes);
+ cp += lead;
+ if (prec || flags & ALT)
+ PRINT(decimal_point, 1);
+ }
+ PRINTANDPAD(cp, dtoaend, prec, zeroes);
+ } else { /* %[eE] or sufficiently long %[gG] */
+ if (prec > 1 || flags & ALT) {
+ buf[0] = *cp++;
+ buf[1] = *decimal_point;
+ PRINT(buf, 2);
+ PRINT(cp, ndig-1);
+ PAD(prec - ndig, zeroes);
+ } else { /* XeYYY */
+ PRINT(cp, 1);
+ }
+ PRINT(expstr, expsize);
+ }
+ }
+#else
+ PRINT(cp, size);
+#endif
+ /* left-adjusting padding (always blank) */
+ if (flags & LADJUST)
+ PAD(width - realsz, blanks);
+
+ /* finally, adjust ret */
+ if (width < realsz)
+ width = realsz;
+ if (width > INT_MAX - ret)
+ goto overflow;
+ ret += width;
+
+ FLUSH(); /* copy out the I/O vectors */
+ }
+done:
+ FLUSH();
+error:
+ if (__sferror(fp))
+ ret = -1;
+ goto finish;
+
+overflow:
+ errno = ENOMEM;
+ ret = -1;
+
+finish:
+ va_end(orgap);
+#ifdef FLOATING_POINT
+ if (dtoaresult)
+ __freedtoa(dtoaresult);
+#endif
+ if (argtable != NULL && argtable != statargtable) {
+ munmap(argtable, argtablesiz);
+ argtable = NULL;
+ }
+ return (ret);
+}
+
+/*
+ * Type ids for argument type table.
+ */
+#define T_UNUSED 0
+#define T_SHORT 1
+#define T_U_SHORT 2
+#define TP_SHORT 3
+#define T_INT 4
+#define T_U_INT 5
+#define TP_INT 6
+#define T_LONG 7
+#define T_U_LONG 8
+#define TP_LONG 9
+#define T_LLONG 10
+#define T_U_LLONG 11
+#define TP_LLONG 12
+#define T_DOUBLE 13
+#define T_LONG_DOUBLE 14
+#define TP_CHAR 15
+#define TP_VOID 16
+#define T_PTRINT 17
+#define TP_PTRINT 18
+#define T_SIZEINT 19
+#define T_SSIZEINT 20
+#define TP_SSIZEINT 21
+#define T_MAXINT 22
+#define T_MAXUINT 23
+#define TP_MAXINT 24
+#define T_CHAR 25
+#define T_U_CHAR 26
+
+/*
+ * Find all arguments when a positional parameter is encountered. Returns a
+ * table, indexed by argument number, of pointers to each arguments. The
+ * initial argument table should be an array of STATIC_ARG_TBL_SIZE entries.
+ * It will be replaced with a mmap-ed one if it overflows (malloc cannot be
+ * used since we are attempting to make snprintf thread safe, and alloca is
+ * problematic since we have nested functions..)
+ */
+static int
+__find_arguments(const char *fmt0, va_list ap, union arg **argtable,
+ size_t *argtablesiz)
+{
+ char *fmt; /* format string */
+ int ch; /* character from fmt */
+ int n, n2; /* handy integer (short term usage) */
+ char *cp; /* handy char pointer (short term usage) */
+ int flags; /* flags as above */
+ unsigned char *typetable; /* table of types */
+ unsigned char stattypetable[STATIC_ARG_TBL_SIZE];
+ int tablesize; /* current size of type table */
+ int tablemax; /* largest used index in table */
+ int nextarg; /* 1-based argument index */
+ int ret = 0; /* return value */
+ wchar_t wc;
+ mbstate_t ps;
+
+ /*
+ * Add an argument type to the table, expanding if necessary.
+ */
+#define ADDTYPE(type) \
+ ((nextarg >= tablesize) ? \
+ __grow_type_table(&typetable, &tablesize) : 0, \
+ (nextarg > tablemax) ? tablemax = nextarg : 0, \
+ typetable[nextarg++] = type)
+
+#define ADDSARG() \
+ ((flags&MAXINT) ? ADDTYPE(T_MAXINT) : \
+ ((flags&PTRINT) ? ADDTYPE(T_PTRINT) : \
+ ((flags&SIZEINT) ? ADDTYPE(T_SSIZEINT) : \
+ ((flags&LLONGINT) ? ADDTYPE(T_LLONG) : \
+ ((flags&LONGINT) ? ADDTYPE(T_LONG) : \
+ ((flags&SHORTINT) ? ADDTYPE(T_SHORT) : \
+ ((flags&CHARINT) ? ADDTYPE(T_CHAR) : ADDTYPE(T_INT))))))))
+
+#define ADDUARG() \
+ ((flags&MAXINT) ? ADDTYPE(T_MAXUINT) : \
+ ((flags&PTRINT) ? ADDTYPE(T_PTRINT) : \
+ ((flags&SIZEINT) ? ADDTYPE(T_SIZEINT) : \
+ ((flags&LLONGINT) ? ADDTYPE(T_U_LLONG) : \
+ ((flags&LONGINT) ? ADDTYPE(T_U_LONG) : \
+ ((flags&SHORTINT) ? ADDTYPE(T_U_SHORT) : \
+ ((flags&CHARINT) ? ADDTYPE(T_U_CHAR) : ADDTYPE(T_U_INT))))))))
+
+ /*
+ * Add * arguments to the type array.
+ */
+#define ADDASTER() \
+ n2 = 0; \
+ cp = fmt; \
+ while (is_digit(*cp)) { \
+ APPEND_DIGIT(n2, *cp); \
+ cp++; \
+ } \
+ if (*cp == '$') { \
+ int hold = nextarg; \
+ nextarg = n2; \
+ ADDTYPE(T_INT); \
+ nextarg = hold; \
+ fmt = ++cp; \
+ } else { \
+ ADDTYPE(T_INT); \
+ }
+ fmt = (char *)fmt0;
+ typetable = stattypetable;
+ tablesize = STATIC_ARG_TBL_SIZE;
+ tablemax = 0;
+ nextarg = 1;
+ memset(typetable, T_UNUSED, STATIC_ARG_TBL_SIZE);
+ memset(&ps, 0, sizeof(ps));
+
+ /*
+ * Scan the format for conversions (`%' character).
+ */
+ for (;;) {
+ cp = fmt;
+ while ((n = ust_safe_mbrtowc(&wc, fmt, MB_CUR_MAX, &ps)) > 0) {
+ fmt += n;
+ if (wc == '%') {
+ fmt--;
+ break;
+ }
+ }
+ if (n <= 0)
+ goto done;
+ fmt++; /* skip over '%' */
+
+ flags = 0;
+
+rflag: ch = *fmt++;
+reswitch: switch (ch) {
+ case ' ':
+ case '#':
+ case '\'':
+ goto rflag;
+ case '*':
+ ADDASTER();
+ goto rflag;
+ case '-':
+ case '+':
+ goto rflag;
+ case '.':
+ if ((ch = *fmt++) == '*') {
+ ADDASTER();
+ goto rflag;
+ }
+ while (is_digit(ch)) {
+ ch = *fmt++;
+ }
+ goto reswitch;
+ case '0':
+ goto rflag;
+ case '1': case '2': case '3': case '4':
+ case '5': case '6': case '7': case '8': case '9':
+ n = 0;
+ do {
+ APPEND_DIGIT(n ,ch);
+ ch = *fmt++;
+ } while (is_digit(ch));
+ if (ch == '$') {
+ nextarg = n;
+ goto rflag;
+ }
+ goto reswitch;
+#ifdef FLOATING_POINT
+ case 'L':
+ flags |= LONGDBL;
+ goto rflag;
+#endif
+ case 'h':
+ if (*fmt == 'h') {
+ fmt++;
+ flags |= CHARINT;
+ } else {
+ flags |= SHORTINT;
+ }
+ goto rflag;
+ case 'l':
+ if (*fmt == 'l') {
+ fmt++;
+ flags |= LLONGINT;
+ } else {
+ flags |= LONGINT;
+ }
+ goto rflag;
+ case 'q':
+ flags |= LLONGINT;
+ goto rflag;
+ case 't':
+ flags |= PTRINT;
+ goto rflag;
+ case 'z':
+ flags |= SIZEINT;
+ goto rflag;
+ case 'c':
+ ADDTYPE(T_INT);
+ break;
+ case 'D':
+ flags |= LONGINT;
+ /*FALLTHROUGH*/
+ case 'd':
+ case 'i':
+ ADDSARG();
+ break;
+#ifdef FLOATING_POINT
+ case 'a':
+ case 'A':
+ case 'e':
+ case 'E':
+ case 'f':
+ case 'F':
+ case 'g':
+ case 'G':
+ if (flags & LONGDBL)
+ ADDTYPE(T_LONG_DOUBLE);
+ else
+ ADDTYPE(T_DOUBLE);
+ break;
+#endif /* FLOATING_POINT */
+ case 'n':
+ if (flags & LLONGINT)
+ ADDTYPE(TP_LLONG);
+ else if (flags & LONGINT)
+ ADDTYPE(TP_LONG);
+ else if (flags & SHORTINT)
+ ADDTYPE(TP_SHORT);
+ else if (flags & PTRINT)
+ ADDTYPE(TP_PTRINT);
+ else if (flags & SIZEINT)
+ ADDTYPE(TP_SSIZEINT);
+ else if (flags & MAXINT)
+ ADDTYPE(TP_MAXINT);
+ else
+ ADDTYPE(TP_INT);
+ continue; /* no output */
+ case 'O':
+ flags |= LONGINT;
+ /*FALLTHROUGH*/
+ case 'o':
+ ADDUARG();
+ break;
+ case 'p':
+ ADDTYPE(TP_VOID);
+ break;
+ case 's':
+ ADDTYPE(TP_CHAR);
+ break;
+ case 'U':
+ flags |= LONGINT;
+ /*FALLTHROUGH*/
+ case 'u':
+ case 'X':
+ case 'x':
+ ADDUARG();
+ break;
+ default: /* "%?" prints ?, unless ? is NUL */
+ if (ch == '\0')
+ goto done;
+ break;
+ }
+ }
+done:
+ /*
+ * Build the argument table.
+ */
+ if (tablemax >= STATIC_ARG_TBL_SIZE) {
+ *argtablesiz = sizeof(union arg) * (tablemax + 1);
+ *argtable = mmap(NULL, *argtablesiz,
+ PROT_WRITE|PROT_READ, MAP_ANON|MAP_PRIVATE, -1, 0);
+ if (*argtable == MAP_FAILED)
+ return (-1);
+ }
+
+#if 0
+ /* XXX is this required? */
+ (*argtable)[0].intarg = 0;
+#endif
+ for (n = 1; n <= tablemax; n++) {
+ switch (typetable[n]) {
+ case T_UNUSED:
+ case T_CHAR:
+ case T_U_CHAR:
+ case T_SHORT:
+ case T_U_SHORT:
+ case T_INT:
+ (*argtable)[n].intarg = va_arg(ap, int);
+ break;
+ case TP_SHORT:
+ (*argtable)[n].pshortarg = va_arg(ap, short *);
+ break;
+ case T_U_INT:
+ (*argtable)[n].uintarg = va_arg(ap, unsigned int);
+ break;
+ case TP_INT:
+ (*argtable)[n].pintarg = va_arg(ap, int *);
+ break;
+ case T_LONG:
+ (*argtable)[n].longarg = va_arg(ap, long);
+ break;
+ case T_U_LONG:
+ (*argtable)[n].ulongarg = va_arg(ap, unsigned long);
+ break;
+ case TP_LONG:
+ (*argtable)[n].plongarg = va_arg(ap, long *);
+ break;
+ case T_LLONG:
+ (*argtable)[n].longlongarg = va_arg(ap, long long);
+ break;
+ case T_U_LLONG:
+ (*argtable)[n].ulonglongarg = va_arg(ap, unsigned long long);
+ break;
+ case TP_LLONG:
+ (*argtable)[n].plonglongarg = va_arg(ap, long long *);
+ break;
+#ifdef FLOATING_POINT
+ case T_DOUBLE:
+ (*argtable)[n].doublearg = va_arg(ap, double);
+ break;
+ case T_LONG_DOUBLE:
+ (*argtable)[n].longdoublearg = va_arg(ap, long double);
+ break;
+#endif
+ case TP_CHAR:
+ (*argtable)[n].pchararg = va_arg(ap, char *);
+ break;
+ case TP_VOID:
+ (*argtable)[n].pvoidarg = va_arg(ap, void *);
+ break;
+ case T_PTRINT:
+ (*argtable)[n].ptrdiffarg = va_arg(ap, ptrdiff_t);
+ break;
+ case TP_PTRINT:
+ (*argtable)[n].pptrdiffarg = va_arg(ap, ptrdiff_t *);
+ break;
+ case T_SIZEINT:
+ (*argtable)[n].sizearg = va_arg(ap, size_t);
+ break;
+ case T_SSIZEINT:
+ (*argtable)[n].ssizearg = va_arg(ap, ssize_t);
+ break;
+ case TP_SSIZEINT:
+ (*argtable)[n].pssizearg = va_arg(ap, ssize_t *);
+ break;
+ case TP_MAXINT:
+ (*argtable)[n].intmaxarg = va_arg(ap, intmax_t);
+ break;
+ }
+ }
+ goto finish;
+
+overflow:
+ errno = ENOMEM;
+ ret = -1;
+
+finish:
+ if (typetable != NULL && typetable != stattypetable) {
+ munmap(typetable, *argtablesiz);
+ typetable = NULL;
+ }
+ return (ret);
+}
+
+/*
+ * Increase the size of the type table.
+ */
+static int
+__grow_type_table(unsigned char **typetable, int *tablesize)
+{
+ unsigned char *oldtable = *typetable;
+ int newsize = *tablesize * 2;
+
+ if (newsize < getpagesize())
+ newsize = getpagesize();
+
+ if (*tablesize == STATIC_ARG_TBL_SIZE) {
+ *typetable = mmap(NULL, newsize, PROT_WRITE|PROT_READ,
+ MAP_ANON|MAP_PRIVATE, -1, 0);
+ if (*typetable == MAP_FAILED)
+ return (-1);
+ bcopy(oldtable, *typetable, *tablesize);
+ } else {
+ unsigned char *new = mmap(NULL, newsize, PROT_WRITE|PROT_READ,
+ MAP_ANON|MAP_PRIVATE, -1, 0);
+ if (new == MAP_FAILED)
+ return (-1);
+ memmove(new, *typetable, *tablesize);
+ munmap(*typetable, *tablesize);
+ *typetable = new;
+ }
+ memset(*typetable + *tablesize, T_UNUSED, (newsize - *tablesize));
+
+ *tablesize = newsize;
+ return (0);
+}
+
+
+#ifdef FLOATING_POINT
+static int
+exponent(char *p0, int exp, int fmtch)
+{
+ char *p, *t;
+ char expbuf[MAXEXPDIG];
+
+ p = p0;
+ *p++ = fmtch;
+ if (exp < 0) {
+ exp = -exp;
+ *p++ = '-';
+ } else
+ *p++ = '+';
+ t = expbuf + MAXEXPDIG;
+ if (exp > 9) {
+ do {
+ *--t = to_char(exp % 10);
+ } while ((exp /= 10) > 9);
+ *--t = to_char(exp);
+ for (; t < expbuf + MAXEXPDIG; *p++ = *t++)
+ /* nothing */;
+ } else {
+ /*
+ * Exponents for decimal floating point conversions
+ * (%[eEgG]) must be at least two characters long,
+ * whereas exponents for hexadecimal conversions can
+ * be only one character long.
+ */
+ if (fmtch == 'e' || fmtch == 'E')
+ *p++ = '0';
+ *p++ = to_char(exp);
+ }
+ return (p - p0);
+}
+#endif /* FLOATING_POINT */
--- /dev/null
+/* $OpenBSD: wcio.h,v 1.1 2005/06/17 20:40:32 espie Exp $ */
+/* $NetBSD: wcio.h,v 1.3 2003/01/18 11:30:00 thorpej Exp $ */
+
+/*
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (C)2001 Citrus Project,
+ * All rights reserved.
+ *
+ * $Citrus$
+ */
+
+#ifndef _WCIO_H_
+#define _WCIO_H_
+
+#include <stddef.h>
+#include <wchar.h>
+
+/* minimal requirement of SUSv2 */
+#define WCIO_UNGETWC_BUFSIZE 1
+
+struct wchar_io_data {
+ mbstate_t wcio_mbstate_in;
+ mbstate_t wcio_mbstate_out;
+
+ wchar_t wcio_ungetwc_buf[WCIO_UNGETWC_BUFSIZE];
+ size_t wcio_ungetwc_inbuf;
+
+ int wcio_mode; /* orientation */
+};
+
+#define WCIO_GET(fp) \
+ (_EXT(fp) ? &(_EXT(fp)->_wcio) : (struct wchar_io_data *)0)
+
+#define WCIO_GET_NONULL(fp) \
+ (&(_EXT(fp)->_wcio))
+
+#define _SET_ORIENTATION(fp, mode) \
+do {\
+ struct wchar_io_data *_wcio = WCIO_GET(fp); \
+ if (_wcio && _wcio->wcio_mode == 0) \
+ _wcio->wcio_mode = (mode);\
+} while (0)
+
+/*
+ * WCIO_FREE should be called by fclose
+ */
+#define WCIO_FREE(fp) \
+do {\
+ struct wchar_io_data *_wcio = WCIO_GET(fp); \
+ if (_wcio) { \
+ _wcio->wcio_mode = 0;\
+ _wcio->wcio_ungetwc_inbuf = 0;\
+ } \
+} while (0)
+
+#define WCIO_FREEUB(fp) \
+do {\
+ struct wchar_io_data *_wcio = WCIO_GET(fp); \
+ if (_wcio) { \
+ _wcio->wcio_ungetwc_inbuf = 0;\
+ } \
+} while (0)
+
+#define WCIO_INIT(fp) \
+ memset(WCIO_GET_NONULL(fp), 0, sizeof(struct wchar_io_data))
+
+#endif /*_WCIO_H_*/
--- /dev/null
+/* $OpenBSD: wsetup.c,v 1.7 2005/08/08 08:05:36 espie Exp $ */
+/*
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (C) 1990, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Chris Torek.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <assert.h>
+#include "local.h"
+
+/*
+ * Various output routines call wsetup to be sure it is safe to write,
+ * because either _flags does not include __SWR, or _buf is NULL.
+ * _wsetup returns 0 if OK to write, nonzero otherwise.
+ */
+int
+__swsetup(LTTNG_UST_LFILE *fp)
+{
+ /* make sure stdio is set up */
+// if (!__sdidinit)
+// __sinit();
+
+ /*
+ * If we are not writing, we had better be reading and writing.
+ */
+ if ((fp->_flags & __SWR) == 0) {
+ if ((fp->_flags & __SRW) == 0)
+ return (EOF);
+ if (fp->_flags & __SRD) {
+ /* clobber any ungetc data */
+ if (HASUB(fp))
+ FREEUB(fp);
+ fp->_flags &= ~(__SRD|__SEOF);
+ fp->_r = 0;
+ fp->_p = fp->_bf._base;
+ }
+ fp->_flags |= __SWR;
+ }
+
+ /*
+ * Make a buffer if necessary, then set _w.
+ */
+ if (fp->_bf._base == NULL) {
+// if ((fp->_flags & (__SSTR | __SALC)) == __SSTR)
+// return (EOF);
+// __smakebuf(fp);
+ assert(0);
+ }
+ if (fp->_flags & __SLBF) {
+ /*
+ * It is line buffered, so make _lbfsize be -_bufsize
+ * for the putc() macro. We will change _lbfsize back
+ * to 0 whenever we turn off __SWR.
+ */
+ fp->_w = 0;
+ fp->_lbfsize = -fp->_bf._size;
+ } else
+ fp->_w = fp->_flags & __SNBF ? 0 : fp->_bf._size;
+ return (0);
+}
liblttng_ust_ctl_la_LIBADD = \
$(top_builddir)/src/liblttng-ust-comm/liblttng-ust-comm.la \
$(top_builddir)/src/liblttng-ust/liblttng-ust-support.la \
- $(top_builddir)/src/snprintf/libustsnprintf.la \
+ $(top_builddir)/src/common/libcommon.la \
$(DL_LIBS)
liblttng_ust_dl_la_LIBADD = \
$(top_builddir)/src/liblttng-ust/liblttng-ust.la \
- $(top_builddir)/src/snprintf/libustsnprintf.la \
+ $(top_builddir)/src/common/libcommon.la \
$(DL_LIBS)
liblttng_ust_dl_la_CFLAGS = -DUST_COMPONENT=liblttng-ust-dl $(AM_CFLAGS)
liblttng_ust_tracepoint_la_LIBADD = \
liblttng-ust-common.la \
- $(top_builddir)/src/snprintf/libustsnprintf.la \
+ $(top_builddir)/src/common/libcommon.la \
$(DL_LIBS)
liblttng_ust_tracepoint_la_LDFLAGS = -no-undefined -version-info $(LTTNG_UST_LIBRARY_VERSION)
liblttng_ust_la_LIBADD = \
-lrt \
liblttng-ust-common.la \
- $(top_builddir)/src/snprintf/libustsnprintf.la \
+ $(top_builddir)/src/common/libcommon.la \
$(top_builddir)/src/liblttng-ust-comm/liblttng-ust-comm.la \
liblttng-ust-tracepoint.la \
liblttng-ust-runtime.la liblttng-ust-support.la \
+++ /dev/null
-# SPDX-License-Identifier: LGPL-2.1-only
-
-AM_CPPFLAGS += -I$(top_srcdir)/libustcomm
-AM_CFLAGS += -fno-strict-aliasing
-
-noinst_LTLIBRARIES = libustsnprintf.la
-libustsnprintf_la_SOURCES = \
- fflush.c \
- fileext.h \
- floatio.h \
- fvwrite.c \
- fvwrite.h \
- local.h \
- mbrtowc_sb.c \
- snprintf.c \
- various.h \
- vfprintf.c \
- wcio.h \
- wsetup.c \
- core.c \
- patient_write.c
-
-libustsnprintf_la_LDFLAGS = -no-undefined -static
-libustsnprintf_la_CFLAGS = -DUST_COMPONENT="lttng_ust_snprintf" -fPIC $(AM_CFLAGS)
-
-EXTRA_DIST = README
+++ /dev/null
-This is a signal safe version of snprintf/vsnprintf. The code is
-originally from the OpenBSD libc.
+++ /dev/null
-/*
- * SPDX-License-Identifier: LGPL-2.1-only
- *
- * Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- */
-
-#include "common/logging.h"
-
-volatile enum ust_err_loglevel ust_err_loglevel;
-
-void ust_err_init(void)
-{
- char *ust_debug;
-
- if (ust_err_loglevel == UST_ERR_LOGLEVEL_UNKNOWN) {
- /*
- * This getenv is not part of lttng_ust_getenv() because it
- * is required to print ERR() performed during getenv
- * initialization.
- */
- ust_debug = getenv("LTTNG_UST_DEBUG");
- if (ust_debug)
- ust_err_loglevel = UST_ERR_LOGLEVEL_DEBUG;
- else
- ust_err_loglevel = UST_ERR_LOGLEVEL_NORMAL;
- }
-}
+++ /dev/null
-/* $OpenBSD: fflush.c,v 1.7 2009/10/22 01:23:16 guenther Exp $ */
-/*
- * SPDX-License-Identifier: BSD-3-Clause
- *
- * Copyright (C) 1990, 1993
- * The Regents of the University of California. All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * Chris Torek.
- */
-
-#include <errno.h>
-#include <stdio.h>
-#include "local.h"
-
-/* Flush a single file, or (if fp is NULL) all files. */
-int ust_safe_fflush(LTTNG_UST_LFILE *fp)
-{
-
- if (fp == NULL)
- return 0;
-// return (_fwalk(__sflush));
- if ((fp->_flags & (__SWR | __SRW)) == 0) {
- errno = EBADF;
- return (EOF);
- }
- return (__sflush(fp));
-}
-
-int
-__sflush(LTTNG_UST_LFILE *fp)
-{
- unsigned char *p;
- int n, t;
-
- t = fp->_flags;
- if ((t & __SWR) == 0)
- return (0);
-
- if ((p = fp->_bf._base) == NULL)
- return (0);
-
- n = fp->_p - p; /* write this much */
-
- /*
- * Set these immediately to avoid problems with longjmp and to allow
- * exchange buffering (via setvbuf) in user write function.
- */
- fp->_p = p;
- fp->_w = t & (__SLBF|__SNBF) ? 0 : fp->_bf._size;
-
- for (; n > 0; n -= t, p += t) {
- t = (*fp->_write)(fp->_cookie, (char *)p, n);
- if (t <= 0) {
- fp->_flags |= __SERR;
- return (EOF);
- }
- }
- return (0);
-}
+++ /dev/null
-/* $OpenBSD: fileext.h,v 1.2 2005/06/17 20:40:32 espie Exp $ */
-/* $NetBSD: fileext.h,v 1.5 2003/07/18 21:46:41 nathanw Exp $ */
-
-/*
- * SPDX-License-Identifier: BSD-2-Clause
- *
- * Copyright (C)2001 Citrus Project,
- * All rights reserved.
- *
- * $Citrus$
- */
-
-/*
- * file extension
- */
-struct __lttng_ust_sfileext {
- struct __lttng_ust_sbuf _ub; /* ungetc buffer */
- struct wchar_io_data _wcio; /* wide char io status */
-};
-
-#define _EXT(fp) ((struct __lttng_ust_sfileext *)((fp)->_ext._base))
-#define _UB(fp) _EXT(fp)->_ub
-
-#define _FILEEXT_INIT(fp) \
-do { \
- _UB(fp)._base = NULL; \
- _UB(fp)._size = 0; \
- WCIO_INIT(fp); \
-} while (0)
-
-#define _FILEEXT_SETUP(f, fext) \
-do { \
- (f)->_ext._base = (unsigned char *)(fext); \
- _FILEEXT_INIT(f); \
-} while (0)
+++ /dev/null
-/* $OpenBSD: floatio.h,v 1.4 2008/09/07 20:36:08 martynas Exp $ */
-
-/*
- * SPDX-License-Identifier: BSD-3-Clause
- *
- * Copyright (C) 1990, 1993
- * The Regents of the University of California. All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * Chris Torek.
- */
-
-/*
- * Floating point scanf/printf (input/output) definitions.
- */
-
-/* 11-bit exponent (VAX G floating point) is 308 decimal digits */
-#define MAXEXP 308
-/* 128 bit fraction takes up 39 decimal digits; max reasonable precision */
-#define MAXFRACT 39
-
-/*
- * MAXEXPDIG is the maximum number of decimal digits needed to store a
- * floating point exponent in the largest supported format. It should
- * be ceil(log10(LDBL_MAX_10_EXP)) or, if hexadecimal floating point
- * conversions are supported, ceil(log10(LDBL_MAX_EXP)). But since it
- * is presently never greater than 5 in practice, we fudge it.
- */
-#define MAXEXPDIG 6
-#if LDBL_MAX_EXP > 999999
-#error "floating point buffers too small"
-#endif
-
-char *__hdtoa(double, const char *, int, int *, int *, char **)
- __attribute__((visibility("hidden")));
-
-char *__hldtoa(long double, const char *, int, int *, int *, char **)
- __attribute__((visibility("hidden")));
-
-char *__ldtoa(long double *, int, int, int *, int *, char **)
- __attribute__((visibility("hidden")));
+++ /dev/null
-/* $OpenBSD: fvwrite.c,v 1.16 2009/10/22 01:23:16 guenther Exp $ */
-/*
- * SPDX-License-Identifier: BSD-3-Clause
- *
- * Copyright (C) 1990, 1993
- * The Regents of the University of California. All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * Chris Torek.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <errno.h>
-#include "local.h"
-#include "fvwrite.h"
-#include "various.h"
-
-/*
- * Write some memory regions. Return zero on success, EOF on error.
- *
- * This routine is large and unsightly, but most of the ugliness due
- * to the three different kinds of output buffering is handled here.
- */
-int
-__sfvwrite(LTTNG_UST_LFILE *fp, struct __lttng_ust_suio *uio)
-{
- size_t len;
- char *p;
- struct __lttng_ust_siov *iov;
- int w, s;
- char *nl;
- int nlknown, nldist;
-
- if ((len = uio->uio_resid) == 0)
- return (0);
- /* make sure we can write */
- if (cantwrite(fp)) {
- errno = EBADF;
- return (EOF);
- }
-
-#define MIN(a, b) ((a) < (b) ? (a) : (b))
-#define COPY(n) (void)memcpy((void *)fp->_p, (void *)p, (size_t)(n))
-
- iov = uio->uio_iov;
- p = iov->iov_base;
- len = iov->iov_len;
- iov++;
-#define GETIOV(extra_work) \
- while (len == 0) { \
- extra_work; \
- p = iov->iov_base; \
- len = iov->iov_len; \
- iov++; \
- }
- if (fp->_flags & __SNBF) {
- /*
- * Unbuffered: write up to BUFSIZ bytes at a time.
- */
- do {
- GETIOV(;);
- w = (*fp->_write)(fp->_cookie, p, MIN(len, BUFSIZ));
- if (w <= 0)
- goto err;
- p += w;
- len -= w;
- } while ((uio->uio_resid -= w) != 0);
- } else if ((fp->_flags & __SLBF) == 0) {
- /*
- * Fully buffered: fill partially full buffer, if any,
- * and then flush. If there is no partial buffer, write
- * one _bf._size byte chunk directly (without copying).
- *
- * String output is a special case: write as many bytes
- * as fit, but pretend we wrote everything. This makes
- * snprintf() return the number of bytes needed, rather
- * than the number used, and avoids its write function
- * (so that the write function can be invalid).
- */
- do {
- GETIOV(;);
- if ((fp->_flags & (__SALC | __SSTR)) ==
- (__SALC | __SSTR) && fp->_w < len) {
- size_t blen = fp->_p - fp->_bf._base;
- unsigned char *_base;
- int _size;
-
- /* Allocate space exponentially. */
- _size = fp->_bf._size;
- do {
- _size = (_size << 1) + 1;
- } while (_size < blen + len);
- _base = realloc(fp->_bf._base, _size + 1);
- if (_base == NULL)
- goto err;
- fp->_w += _size - fp->_bf._size;
- fp->_bf._base = _base;
- fp->_bf._size = _size;
- fp->_p = _base + blen;
- }
- w = fp->_w;
- if (fp->_flags & __SSTR) {
- if (len < w)
- w = len;
- COPY(w); /* copy MIN(fp->_w,len), */
- fp->_w -= w;
- fp->_p += w;
- w = len; /* but pretend copied all */
- } else if (fp->_p > fp->_bf._base && len > w) {
- /* fill and flush */
- COPY(w);
- /* fp->_w -= w; */ /* unneeded */
- fp->_p += w;
- if (ust_safe_fflush(fp))
- goto err;
- } else if (len >= (w = fp->_bf._size)) {
- /* write directly */
- w = (*fp->_write)(fp->_cookie, p, w);
- if (w <= 0)
- goto err;
- } else {
- /* fill and done */
- w = len;
- COPY(w);
- fp->_w -= w;
- fp->_p += w;
- }
- p += w;
- len -= w;
- } while ((uio->uio_resid -= w) != 0);
- } else {
- /*
- * Line buffered: like fully buffered, but we
- * must check for newlines. Compute the distance
- * to the first newline (including the newline),
- * or `infinity' if there is none, then pretend
- * that the amount to write is MIN(len,nldist).
- */
- nlknown = 0;
- nldist = 0; /* XXX just to keep gcc happy */
- do {
- GETIOV(nlknown = 0);
- if (!nlknown) {
- nl = memchr((void *)p, '\n', len);
- nldist = nl ? nl + 1 - p : len + 1;
- nlknown = 1;
- }
- s = MIN(len, nldist);
- w = fp->_w + fp->_bf._size;
- if (fp->_p > fp->_bf._base && s > w) {
- COPY(w);
- /* fp->_w -= w; */
- fp->_p += w;
- if (ust_safe_fflush(fp))
- goto err;
- } else if (s >= (w = fp->_bf._size)) {
- w = (*fp->_write)(fp->_cookie, p, w);
- if (w <= 0)
- goto err;
- } else {
- w = s;
- COPY(w);
- fp->_w -= w;
- fp->_p += w;
- }
- if ((nldist -= w) == 0) {
- /* copied the newline: flush and forget */
- if (ust_safe_fflush(fp))
- goto err;
- nlknown = 0;
- }
- p += w;
- len -= w;
- } while ((uio->uio_resid -= w) != 0);
- }
- return (0);
-
-err:
- fp->_flags |= __SERR;
- return (EOF);
-}
+++ /dev/null
-/* $OpenBSD: fvwrite.h,v 1.5 2003/06/02 20:18:37 millert Exp $ */
-
-/*
- * SPDX-License-Identifier: BSD-3-Clause
- *
- * Copyright (C) 1990, 1993
- * The Regents of the University of California. All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * Chris Torek.
- */
-
-/*
- * I/O descriptors for __sfvwrite().
- */
-#include <stddef.h>
-
-struct __lttng_ust_siov {
- void *iov_base;
- size_t iov_len;
-};
-struct __lttng_ust_suio {
- struct __lttng_ust_siov *uio_iov;
- int uio_iovcnt;
- int uio_resid;
-};
-
-extern int __sfvwrite(LTTNG_UST_LFILE *, struct __lttng_ust_suio *)
- __attribute__((visibility("hidden")));
+++ /dev/null
-/* $OpenBSD: local.h,v 1.14 2009/10/22 01:23:16 guenther Exp $ */
-
-/*
- * SPDX-License-Identifier: BSD-3-Clause
- *
- * Copyright (C) 1990, 1993
- * The Regents of the University of California. All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * Chris Torek.
- */
-
-/*
- * Information local to this implementation of stdio,
- * in particular, macros and private variables.
- */
-
-#include <stdio.h>
-#include <wchar.h>
-#include "various.h"
-#include "wcio.h"
-#include "fileext.h"
-
-int __sflush(LTTNG_UST_LFILE *)
- __attribute__((visibility("hidden")));
-
-LTTNG_UST_LFILE *__sfp(void)
- __attribute__((visibility("hidden")));
-
-int __srefill(LTTNG_UST_LFILE *)
- __attribute__((visibility("hidden")));
-
-int __sread(void *, char *, int)
- __attribute__((visibility("hidden")));
-
-int __swrite(void *, const char *, int)
- __attribute__((visibility("hidden")));
-
-fpos_t __sseek(void *, fpos_t, int)
- __attribute__((visibility("hidden")));
-
-int __sclose(void *)
- __attribute__((visibility("hidden")));
-
-void __sinit(void)
- __attribute__((visibility("hidden")));
-
-void _cleanup(void)
- __attribute__((visibility("hidden")));
-
-void __smakebuf(LTTNG_UST_LFILE *)
- __attribute__((visibility("hidden")));
-
-int __swhatbuf(LTTNG_UST_LFILE *, size_t *, int *)
- __attribute__((visibility("hidden")));
-
-int _fwalk(int (*)(LTTNG_UST_LFILE *))
- __attribute__((visibility("hidden")));
-
-int __swsetup(LTTNG_UST_LFILE *)
- __attribute__((visibility("hidden")));
-
-int __sflags(const char *, int *)
- __attribute__((visibility("hidden")));
-
-wint_t __fgetwc_unlock(LTTNG_UST_LFILE *)
- __attribute__((visibility("hidden")));
-
-extern void __atexit_register_cleanup(void (*)(void))
- __attribute__((visibility("hidden")));
-
-extern int __sdidinit
- __attribute__((visibility("hidden")));
-
-/*
- * Return true if the given LTTNG_UST_LFILE cannot be written now.
- */
-#define cantwrite(fp) \
- ((((fp)->_flags & __SWR) == 0 || (fp)->_bf._base == NULL) && \
- __swsetup(fp))
-
-/*
- * Test whether the given stdio file has an active ungetc buffer;
- * release such a buffer, without restoring ordinary unread data.
- */
-#define HASUB(fp) (_UB(fp)._base != NULL)
-#define FREEUB(fp) { \
- if (_UB(fp)._base != (fp)->_ubuf) \
- free(_UB(fp)._base); \
- _UB(fp)._base = NULL; \
-}
-
-/*
- * test for an fgetln() buffer.
- */
-#define HASLB(fp) ((fp)->_lb._base != NULL)
-#define FREELB(fp) { \
- free((char *)(fp)->_lb._base); \
- (fp)->_lb._base = NULL; \
-}
+++ /dev/null
-/* $OpenBSD: mbrtowc_sb.c,v 1.4 2005/11/27 20:03:06 cloder Exp $ */
-/* $NetBSD: multibyte_sb.c,v 1.4 2003/08/07 16:43:04 agc Exp $ */
-
-/*
- * SPDX-License-Identifier: BSD-3-Clause
- *
- * Copyright (C) 1991 The Regents of the University of California.
- * All rights reserved.
- */
-
-#include <errno.h>
-#include <stdlib.h>
-#include <wchar.h>
-
-#include "various.h"
-
-/*ARGSUSED*/
-size_t
-ust_safe_mbrtowc(wchar_t *pwc, const char *s, size_t n,
- mbstate_t *ps __attribute__((unused)))
-{
-
- /* pwc may be NULL */
- /* s may be NULL */
- /* ps appears to be unused */
-
- if (s == NULL)
- return 0;
- if (n == 0)
- return (size_t)-1;
- if (pwc)
- *pwc = (wchar_t)(unsigned char)*s;
- return (*s != '\0');
-}
+++ /dev/null
-/*
- * SPDX-License-Identifier: LGPL-2.1-or-later
- *
- * Copyright (C) 2009 Pierre-Marc Fournier
- * Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- */
-
-#include <stddef.h>
-
-/* write() */
-#include <unistd.h>
-
-/* writev() */
-#include <sys/uio.h>
-
-/* send() */
-#include <sys/types.h>
-#include <sys/socket.h>
-
-#include <errno.h>
-
-#include "common/patient.h"
-
-/*
- * This write is patient because it restarts if it was incomplete.
- */
-
-ssize_t ust_patient_write(int fd, const void *buf, size_t count)
-{
- const char *bufc = (const char *) buf;
- int result;
-
- for(;;) {
- result = write(fd, bufc, count);
- if (result == -1 && errno == EINTR) {
- continue;
- }
- if (result <= 0) {
- return result;
- }
- count -= result;
- bufc += result;
-
- if (count == 0) {
- break;
- }
- }
-
- return bufc-(const char *)buf;
-}
-
-/*
- * The `struct iovec *iov` is not `const` because we modify it to support
- * partial writes.
- */
-ssize_t ust_patient_writev(int fd, struct iovec *iov, int iovcnt)
-{
- ssize_t written, total_written = 0;
- int curr_element_idx = 0;
-
- for(;;) {
- written = writev(fd, iov + curr_element_idx,
- iovcnt - curr_element_idx);
- if (written == -1 && errno == EINTR) {
- continue;
- }
- if (written <= 0) {
- return written;
- }
-
- total_written += written;
-
- /*
- * If it's not the last element in the vector and we have
- * written more than the current element size, then increment
- * the current element index until we reach the element that
- * was partially written.
- */
- while (curr_element_idx < iovcnt &&
- written >= iov[curr_element_idx].iov_len) {
- written -= iov[curr_element_idx].iov_len;
- curr_element_idx++;
- }
-
- /* Maybe we are done. */
- if (curr_element_idx >= iovcnt) {
- break;
- }
-
- /* Update the current element base and size. */
- iov[curr_element_idx].iov_base += written;
- iov[curr_element_idx].iov_len -= written;
- }
-
- return total_written;
-}
-
-ssize_t ust_patient_send(int fd, const void *buf, size_t count, int flags)
-{
- const char *bufc = (const char *) buf;
- int result;
-
- for(;;) {
- result = send(fd, bufc, count, flags);
- if (result == -1 && errno == EINTR) {
- continue;
- }
- if (result <= 0) {
- return result;
- }
- count -= result;
- bufc += result;
-
- if (count == 0) {
- break;
- }
- }
-
- return bufc - (const char *) buf;
-}
+++ /dev/null
-/* $OpenBSD: snprintf.c,v 1.16 2009/10/22 01:23:16 guenther Exp $ */
-/*
- * SPDX-License-Identifier: BSD-3-Clause
- *
- * Copyright (C) 1990, 1993
- * The Regents of the University of California. All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * Chris Torek.
- */
-
-#include <limits.h>
-#include <stddef.h>
-#include <stdio.h>
-#include <string.h>
-#include <stdarg.h>
-#include "local.h"
-#include "common/safe-snprintf.h"
-
-#define DUMMY_LEN 1
-
-int ust_safe_vsnprintf(char *str, size_t n, const char *fmt, va_list ap)
-{
- int ret;
- char dummy[DUMMY_LEN];
- LTTNG_UST_LFILE f;
- struct __lttng_ust_sfileext fext;
-
- /* While snprintf(3) specifies size_t stdio uses an int internally */
- if (n > INT_MAX)
- n = INT_MAX;
- /* Stdio internals do not deal correctly with zero length buffer */
- if (n == 0) {
- str = dummy;
- n = DUMMY_LEN;
- }
- _FILEEXT_SETUP(&f, &fext);
- f._file = -1;
- f._flags = __SWR | __SSTR;
- f._bf._base = f._p = (unsigned char *)str;
- f._bf._size = f._w = n - 1;
- ret = ust_safe_vfprintf(&f, fmt, ap);
- *f._p = '\0';
- return (ret);
-}
-
-int ust_safe_snprintf(char *str, size_t n, const char *fmt, ...)
-{
- va_list ap;
- int ret;
-
- va_start(ap, fmt);
- ret = ust_safe_vsnprintf(str, n, fmt, ap);
- va_end(ap);
-
- return ret;
-}
+++ /dev/null
-/*
- * SPDX-License-Identifier: BSD-3-Clause
- *
- * Copyright (C) 1990 The Regents of the University of California.
- * All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * Chris Torek.
- */
-
-#ifndef UST_SNPRINTF_VARIOUS_H
-#define UST_SNPRINTF_VARIOUS_H
-
-#include <stdarg.h>
-#include <stddef.h>
-#include <stdio.h>
-#include <wchar.h>
-
-struct __lttng_ust_sbuf {
- unsigned char *_base;
- int _size;
-};
-
-/*
- * stdio state variables.
- *
- * The following always hold:
- *
- * if (_flags&(__SLBF|__SWR)) == (__SLBF|__SWR),
- * _lbfsize is -_bf._size, else _lbfsize is 0
- * if _flags&__SRD, _w is 0
- * if _flags&__SWR, _r is 0
- *
- * This ensures that the getc and putc macros (or inline functions) never
- * try to write or read from a file that is in `read' or `write' mode.
- * (Moreover, they can, and do, automatically switch from read mode to
- * write mode, and back, on "r+" and "w+" files.)
- *
- * _lbfsize is used only to make the inline line-buffered output stream
- * code as compact as possible.
- *
- * _ub, _up, and _ur are used when ungetc() pushes back more characters
- * than fit in the current _bf, or when ungetc() pushes back a character
- * that does not match the previous one in _bf. When this happens,
- * _ub._base becomes non-nil (i.e., a stream has ungetc() data iff
- * _ub._base!=NULL) and _up and _ur save the current values of _p and _r.
- */
-typedef struct __lttng_ust_sFILE {
- unsigned char *_p; /* current position in (some) buffer */
- int _r; /* read space left for getc() */
- int _w; /* write space left for putc() */
- short _flags; /* flags, below; this FILE is free if 0 */
- short _file; /* fileno, if Unix descriptor, else -1 */
- struct __lttng_ust_sbuf _bf; /* the buffer (at least 1 byte, if !NULL) */
- int _lbfsize; /* 0 or -_bf._size, for inline putc */
-
- /* operations */
- void *_cookie; /* cookie passed to io functions */
- int (*_close)(void *);
- int (*_read)(void *, char *, int);
- fpos_t (*_seek)(void *, fpos_t, int);
- int (*_write)(void *, const char *, int);
-
- /* extension data, to avoid further ABI breakage */
- struct __lttng_ust_sbuf _ext;
- /* data for long sequences of ungetc() */
- unsigned char *_up; /* saved _p when _p is doing ungetc data */
- int _ur; /* saved _r when _r is counting ungetc data */
-
- /* tricks to meet minimum requirements even when malloc() fails */
- unsigned char _ubuf[3]; /* guarantee an ungetc() buffer */
- unsigned char _nbuf[1]; /* guarantee a getc() buffer */
-
- /* separate buffer for fgetln() when line crosses buffer boundary */
- struct __lttng_ust_sbuf _lb; /* buffer for fgetln() */
-
- /* Unix stdio files get aligned to block boundaries on fseek() */
- int _blksize; /* stat.st_blksize (may be != _bf._size) */
- fpos_t _offset; /* current lseek offset */
-} LTTNG_UST_LFILE;
-
-#define __SLBF 0x0001 /* line buffered */
-#define __SNBF 0x0002 /* unbuffered */
-#define __SRD 0x0004 /* OK to read */
-#define __SWR 0x0008 /* OK to write */
- /* RD and WR are never simultaneously asserted */
-#define __SRW 0x0010 /* open for reading & writing */
-#define __SEOF 0x0020 /* found EOF */
-#define __SERR 0x0040 /* found error */
-#define __SMBF 0x0080 /* _buf is from malloc */
-#define __SAPP 0x0100 /* fdopen()ed in append mode */
-#define __SSTR 0x0200 /* this is an sprintf/snprintf string */
-#define __SOPT 0x0400 /* do fseek() optimisation */
-#define __SNPT 0x0800 /* do not do fseek() optimisation */
-#define __SOFF 0x1000 /* set iff _offset is in fact correct */
-#define __SMOD 0x2000 /* true => fgetln modified _p text */
-#define __SALC 0x4000 /* allocate string space dynamically */
-
-#define __sferror(p) (((p)->_flags & __SERR) != 0)
-
-extern int ust_safe_fflush(LTTNG_UST_LFILE *fp)
- __attribute__((visibility("hidden")));
-
-extern int ust_safe_vfprintf(LTTNG_UST_LFILE *fp, const char *fmt0, va_list ap)
- __attribute__((visibility("hidden")));
-
-extern size_t ust_safe_mbrtowc(wchar_t *pwc, const char *s, size_t n, mbstate_t *ps)
- __attribute__((visibility("hidden")));
-
-#endif /* UST_SNPRINTF_VARIOUS_H */
+++ /dev/null
-/* $OpenBSD: vfprintf.c,v 1.57 2009/10/28 21:15:02 naddy Exp $ */
-/*
- * SPDX-License-Identifier: BSD-3-Clause
- *
- * Copyright (C) 1990 The Regents of the University of California.
- * All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * Chris Torek.
- */
-
-/*
- * Actual printf innards.
- *
- * This code is large and complicated...
- */
-
-//#define FLOATING_POINT
-
-#include <sys/types.h>
-#include <sys/mman.h>
-
-#include <errno.h>
-#include <limits.h>
-#include <stdarg.h>
-#include <stddef.h>
-#include <stdio.h>
-#include <stdint.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <wchar.h>
-
-#include "local.h"
-#include "fvwrite.h"
-#include "various.h"
-
-static char null_str[] = "(null)";
-static char bad_base_str[] = "bug in ust_safe_vfprintf: bad base";
-
-union arg {
- int intarg;
- unsigned int uintarg;
- long longarg;
- unsigned long ulongarg;
- long long longlongarg;
- unsigned long long ulonglongarg;
- ptrdiff_t ptrdiffarg;
- size_t sizearg;
- size_t ssizearg;
- intmax_t intmaxarg;
- uintmax_t uintmaxarg;
- void *pvoidarg;
- char *pchararg;
- signed char *pschararg;
- short *pshortarg;
- int *pintarg;
- long *plongarg;
- long long *plonglongarg;
- ptrdiff_t *pptrdiffarg;
- ssize_t *pssizearg;
- intmax_t *pintmaxarg;
-#ifdef FLOATING_POINT
- double doublearg;
- long double longdoublearg;
-#endif
-};
-
-static int __find_arguments(const char *fmt0, va_list ap, union arg **argtable,
- size_t *argtablesiz);
-static int __grow_type_table(unsigned char **typetable, int *tablesize);
-
-/*
- * Flush out all the vectors defined by the given uio,
- * then reset it so that it can be reused.
- */
-static int
-__sprint(LTTNG_UST_LFILE *fp, struct __lttng_ust_suio *uio)
-{
- int err;
-
- if (uio->uio_resid == 0) {
- uio->uio_iovcnt = 0;
- return (0);
- }
- err = __sfvwrite(fp, uio);
- uio->uio_resid = 0;
- uio->uio_iovcnt = 0;
- return (err);
-}
-
-/*
- * Helper function for `fprintf to unbuffered unix file': creates a
- * temporary buffer. We only work on write-only files; this avoids
- * worries about ungetc buffers and so forth.
- */
-//static int
-//__sbprintf(LTTNG_UST_LFILE *fp, const char *fmt, va_list ap)
-//{
-// int ret;
-// LTTNG_UST_LFILE fake;
-// struct __sfileext fakeext;
-// unsigned char buf[BUFSIZ];
-//
-// _FILEEXT_SETUP(&fake, &fakeext);
-// /* copy the important variables */
-// fake._flags = fp->_flags & ~__SNBF;
-// fake._file = fp->_file;
-// fake._cookie = fp->_cookie;
-// fake._write = fp->_write;
-//
-// /* set up the buffer */
-// fake._bf._base = fake._p = buf;
-// fake._bf._size = fake._w = sizeof(buf);
-// fake._lbfsize = 0; /* not actually used, but Just In Case */
-//
-// /* do the work, then copy any error status */
-// ret = ust_safe_vfprintf(&fake, fmt, ap);
-// if (ret >= 0 && fflush(&fake))
-// ret = EOF;
-// if (fake._flags & __SERR)
-// fp->_flags |= __SERR;
-// return (ret);
-//}
-
-
-#ifdef FLOATING_POINT
-#include <float.h>
-#include <locale.h>
-#include <math.h>
-#include "floatio.h"
-
-#define DEFPREC 6
-
-extern char *__dtoa(double, int, int, int *, int *, char **);
-extern void __freedtoa(char *);
-static int exponent(char *, int, int);
-#endif /* FLOATING_POINT */
-
-/*
- * The size of the buffer we use as scratch space for integer
- * conversions, among other things. Technically, we would need the
- * most space for base 10 conversions with thousands' grouping
- * characters between each pair of digits. 100 bytes is a
- * conservative overestimate even for a 128-bit uintmax_t.
- */
-#define BUF 100
-
-#define STATIC_ARG_TBL_SIZE 8 /* Size of static argument table. */
-
-
-/*
- * Macros for converting digits to letters and vice versa
- */
-#define to_digit(c) ((c) - '0')
-#define is_digit(c) ((unsigned)to_digit(c) <= 9)
-#define to_char(n) ((n) + '0')
-
-/*
- * Flags used during conversion.
- */
-#define ALT 0x0001 /* alternate form */
-#define LADJUST 0x0004 /* left adjustment */
-#define LONGDBL 0x0008 /* long double; unimplemented */
-#define LONGINT 0x0010 /* long integer */
-#define LLONGINT 0x0020 /* long long integer */
-#define SHORTINT 0x0040 /* short integer */
-#define ZEROPAD 0x0080 /* zero (as opposed to blank) pad */
-#define FPT 0x0100 /* Floating point number */
-#define PTRINT 0x0200 /* (unsigned) ptrdiff_t */
-#define SIZEINT 0x0400 /* (signed) size_t */
-#define CHARINT 0x0800 /* 8 bit integer */
-#define MAXINT 0x1000 /* largest integer size (intmax_t) */
-
-int ust_safe_vfprintf(LTTNG_UST_LFILE *fp, const char *fmt0, va_list ap)
-{
- char *fmt; /* format string */
- int ch; /* character from fmt */
- int n, n2; /* handy integers (short term usage) */
- char *cp; /* handy char pointer (short term usage) */
- struct __lttng_ust_siov *iovp; /* for PRINT macro */
- int flags; /* flags as above */
- int ret; /* return value accumulator */
- int width; /* width from format (%8d), or 0 */
- int prec; /* precision from format; <0 for N/A */
- char sign; /* sign prefix (' ', '+', '-', or \0) */
- wchar_t wc;
- mbstate_t ps;
-#ifdef FLOATING_POINT
- /*
- * We can decompose the printed representation of floating
- * point numbers into several parts, some of which may be empty:
- *
- * [+|-| ] [0x|0X] MMM . NNN [e|E|p|P] [+|-] ZZ
- * A B ---C--- D E F
- *
- * A: 'sign' holds this value if present; '\0' otherwise
- * B: ox[1] holds the 'x' or 'X'; '\0' if not hexadecimal
- * C: cp points to the string MMMNNN. Leading and trailing
- * zeros are not in the string and must be added.
- * D: expchar holds this character; '\0' if no exponent, e.g. %f
- * F: at least two digits for decimal, at least one digit for hex
- */
- char *decimal_point = localeconv()->decimal_point;
- int signflag; /* true if float is negative */
- union { /* floating point arguments %[aAeEfFgG] */
- double dbl;
- long double ldbl;
- } fparg;
- int expt; /* integer value of exponent */
- char expchar; /* exponent character: [eEpP\0] */
- char *dtoaend; /* pointer to end of converted digits */
- int expsize; /* character count for expstr */
- int lead; /* sig figs before decimal or group sep */
- int ndig; /* actual number of digits returned by dtoa */
- char expstr[MAXEXPDIG+2]; /* buffer for exponent string: e+ZZZ */
- char *dtoaresult = NULL;
-#endif
-
- uintmax_t _umax; /* integer arguments %[diouxX] */
- enum { OCT, DEC, HEX } base; /* base for %[diouxX] conversion */
- int dprec; /* a copy of prec if %[diouxX], 0 otherwise */
- int realsz; /* field size expanded by dprec */
- int size; /* size of converted field or string */
- const char *xdigs = NULL; /* digits for %[xX] conversion */
-#define NIOV 8
- struct __lttng_ust_suio uio; /* output information: summary */
- struct __lttng_ust_siov iov[NIOV];/* ... and individual io vectors */
- char buf[BUF]; /* buffer with space for digits of uintmax_t */
- char ox[2]; /* space for 0x; ox[1] is either x, X, or \0 */
- union arg *argtable; /* args, built due to positional arg */
- union arg statargtable[STATIC_ARG_TBL_SIZE];
- size_t argtablesiz;
- int nextarg; /* 1-based argument index */
- va_list orgap; /* original argument pointer */
-
- /*
- * Choose PADSIZE to trade efficiency vs. size. If larger printf
- * fields occur frequently, increase PADSIZE and make the initialisers
- * below longer.
- */
-#define PADSIZE 16 /* pad chunk size */
- static char blanks[PADSIZE] =
- {' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' '};
- static char zeroes[PADSIZE] =
- {'0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0'};
-
- static const char xdigs_lower[16] = "0123456789abcdef";
- static const char xdigs_upper[16] = "0123456789ABCDEF";
-
- /*
- * BEWARE, these `goto error' on error, and PAD uses `n'.
- */
-#define PRINT(ptr, len) do { \
- iovp->iov_base = (ptr); \
- iovp->iov_len = (len); \
- uio.uio_resid += (len); \
- iovp++; \
- if (++uio.uio_iovcnt >= NIOV) { \
- if (__sprint(fp, &uio)) \
- goto error; \
- iovp = iov; \
- } \
-} while (0)
-#define PAD(howmany, with) do { \
- if ((n = (howmany)) > 0) { \
- while (n > PADSIZE) { \
- PRINT(with, PADSIZE); \
- n -= PADSIZE; \
- } \
- PRINT(with, n); \
- } \
-} while (0)
-#define PRINTANDPAD(p, ep, len, with) do { \
- n2 = (ep) - (p); \
- if (n2 > (len)) \
- n2 = (len); \
- if (n2 > 0) \
- PRINT((p), n2); \
- PAD((len) - (n2 > 0 ? n2 : 0), (with)); \
-} while(0)
-#define FLUSH() do { \
- if (uio.uio_resid && __sprint(fp, &uio)) \
- goto error; \
- uio.uio_iovcnt = 0; \
- iovp = iov; \
-} while (0)
-
- /*
- * To extend shorts properly, we need both signed and unsigned
- * argument extraction methods.
- */
-#define SARG() \
- ((intmax_t)(flags&MAXINT ? GETARG(intmax_t) : \
- flags&LLONGINT ? GETARG(long long) : \
- flags&LONGINT ? GETARG(long) : \
- flags&PTRINT ? GETARG(ptrdiff_t) : \
- flags&SIZEINT ? GETARG(ssize_t) : \
- flags&SHORTINT ? (short)GETARG(int) : \
- flags&CHARINT ? (__signed char)GETARG(int) : \
- GETARG(int)))
-#define UARG() \
- ((uintmax_t)(flags&MAXINT ? GETARG(uintmax_t) : \
- flags&LLONGINT ? GETARG(unsigned long long) : \
- flags&LONGINT ? GETARG(unsigned long) : \
- flags&PTRINT ? (uintptr_t)GETARG(ptrdiff_t) : /* XXX */ \
- flags&SIZEINT ? GETARG(size_t) : \
- flags&SHORTINT ? (unsigned short)GETARG(int) : \
- flags&CHARINT ? (unsigned char)GETARG(int) : \
- GETARG(unsigned int)))
-
- /*
- * Append a digit to a value and check for overflow.
- */
-#define APPEND_DIGIT(val, dig) do { \
- if ((val) > INT_MAX / 10) \
- goto overflow; \
- (val) *= 10; \
- if ((val) > INT_MAX - to_digit((dig))) \
- goto overflow; \
- (val) += to_digit((dig)); \
-} while (0)
-
- /*
- * Get * arguments, including the form *nn$. Preserve the nextarg
- * that the argument can be gotten once the type is determined.
- */
-#define GETASTER(val) \
- n2 = 0; \
- cp = fmt; \
- while (is_digit(*cp)) { \
- APPEND_DIGIT(n2, *cp); \
- cp++; \
- } \
- if (*cp == '$') { \
- int hold = nextarg; \
- if (argtable == NULL) { \
- argtable = statargtable; \
- __find_arguments(fmt0, orgap, &argtable, &argtablesiz); \
- } \
- nextarg = n2; \
- val = GETARG(int); \
- nextarg = hold; \
- fmt = ++cp; \
- } else { \
- val = GETARG(int); \
- }
-
-/*
-* Get the argument indexed by nextarg. If the argument table is
-* built, use it to get the argument. If its not, get the next
-* argument (and arguments must be gotten sequentially).
-*/
-#define GETARG(type) \
- ((argtable != NULL) ? *((type*)(&argtable[nextarg++])) : \
- (nextarg++, va_arg(ap, type)))
-
- _SET_ORIENTATION(fp, -1);
- /* sorry, fprintf(read_only_file, "") returns EOF, not 0 */
- if (cantwrite(fp)) {
- errno = EBADF;
- return (EOF);
- }
-
- /* optimise fprintf(stderr) (and other unbuffered Unix files) */
-// if ((fp->_flags & (__SNBF|__SWR|__SRW)) == (__SNBF|__SWR) &&
-// fp->_file >= 0)
-// return (__sbprintf(fp, fmt0, ap));
-
- fmt = (char *)fmt0;
- argtable = NULL;
- nextarg = 1;
- va_copy(orgap, ap);
- uio.uio_iov = iovp = iov;
- uio.uio_resid = 0;
- uio.uio_iovcnt = 0;
- ret = 0;
-
- memset(&ps, 0, sizeof(ps));
- /*
- * Scan the format for conversions (`%' character).
- */
- for (;;) {
- cp = fmt;
- while ((n = ust_safe_mbrtowc(&wc, fmt, MB_CUR_MAX, &ps)) > 0) {
- fmt += n;
- if (wc == '%') {
- fmt--;
- break;
- }
- }
- if (fmt != cp) {
- ptrdiff_t m = fmt - cp;
- if (m < 0 || m > INT_MAX - ret)
- goto overflow;
- PRINT(cp, m);
- ret += m;
- }
- if (n <= 0)
- goto done;
- fmt++; /* skip over '%' */
-
- flags = 0;
- dprec = 0;
- width = 0;
- prec = -1;
- sign = '\0';
- ox[1] = '\0';
-
-rflag: ch = *fmt++;
-reswitch: switch (ch) {
- case ' ':
- /*
- * ``If the space and + flags both appear, the space
- * flag will be ignored.''
- * -- ANSI X3J11
- */
- if (!sign)
- sign = ' ';
- goto rflag;
- case '#':
- flags |= ALT;
- goto rflag;
- case '\'':
- /* grouping not implemented */
- goto rflag;
- case '*':
- /*
- * ``A negative field width argument is taken as a
- * - flag followed by a positive field width.''
- * -- ANSI X3J11
- * They don't exclude field widths read from args.
- */
- GETASTER(width);
- if (width >= 0)
- goto rflag;
- if (width == INT_MIN)
- goto overflow;
- width = -width;
- /* FALLTHROUGH */
- case '-':
- flags |= LADJUST;
- goto rflag;
- case '+':
- sign = '+';
- goto rflag;
- case '.':
- if ((ch = *fmt++) == '*') {
- GETASTER(n);
- prec = n < 0 ? -1 : n;
- goto rflag;
- }
- n = 0;
- while (is_digit(ch)) {
- APPEND_DIGIT(n, ch);
- ch = *fmt++;
- }
- if (ch == '$') {
- nextarg = n;
- if (argtable == NULL) {
- argtable = statargtable;
- __find_arguments(fmt0, orgap,
- &argtable, &argtablesiz);
- }
- goto rflag;
- }
- prec = n;
- goto reswitch;
- case '0':
- /*
- * ``Note that 0 is taken as a flag, not as the
- * beginning of a field width.''
- * -- ANSI X3J11
- */
- flags |= ZEROPAD;
- goto rflag;
- case '1': case '2': case '3': case '4':
- case '5': case '6': case '7': case '8': case '9':
- n = 0;
- do {
- APPEND_DIGIT(n, ch);
- ch = *fmt++;
- } while (is_digit(ch));
- if (ch == '$') {
- nextarg = n;
- if (argtable == NULL) {
- argtable = statargtable;
- __find_arguments(fmt0, orgap,
- &argtable, &argtablesiz);
- }
- goto rflag;
- }
- width = n;
- goto reswitch;
-#ifdef FLOATING_POINT
- case 'L':
- flags |= LONGDBL;
- goto rflag;
-#endif
- case 'h':
- if (*fmt == 'h') {
- fmt++;
- flags |= CHARINT;
- } else {
- flags |= SHORTINT;
- }
- goto rflag;
- case 'j':
- flags |= MAXINT;
- goto rflag;
- case 'l':
- if (*fmt == 'l') {
- fmt++;
- flags |= LLONGINT;
- } else {
- flags |= LONGINT;
- }
- goto rflag;
- case 'q':
- flags |= LLONGINT;
- goto rflag;
- case 't':
- flags |= PTRINT;
- goto rflag;
- case 'z':
- flags |= SIZEINT;
- goto rflag;
- case 'c':
- *(cp = buf) = GETARG(int);
- size = 1;
- sign = '\0';
- break;
- case 'D':
- flags |= LONGINT;
- /*FALLTHROUGH*/
- case 'd':
- case 'i':
- _umax = SARG();
- if ((intmax_t)_umax < 0) {
- _umax = -_umax;
- sign = '-';
- }
- base = DEC;
- goto number;
-#ifdef FLOATING_POINT
- case 'a':
- case 'A':
- if (ch == 'a') {
- ox[1] = 'x';
- xdigs = xdigs_lower;
- expchar = 'p';
- } else {
- ox[1] = 'X';
- xdigs = xdigs_upper;
- expchar = 'P';
- }
- if (prec >= 0)
- prec++;
- if (dtoaresult)
- __freedtoa(dtoaresult);
- if (flags & LONGDBL) {
- fparg.ldbl = GETARG(long double);
- dtoaresult = cp =
- __hldtoa(fparg.ldbl, xdigs, prec,
- &expt, &signflag, &dtoaend);
- if (dtoaresult == NULL) {
- errno = ENOMEM;
- goto error;
- }
- } else {
- fparg.dbl = GETARG(double);
- dtoaresult = cp =
- __hdtoa(fparg.dbl, xdigs, prec,
- &expt, &signflag, &dtoaend);
- if (dtoaresult == NULL) {
- errno = ENOMEM;
- goto error;
- }
- }
- if (prec < 0)
- prec = dtoaend - cp;
- if (expt == INT_MAX)
- ox[1] = '\0';
- goto fp_common;
- case 'e':
- case 'E':
- expchar = ch;
- if (prec < 0) /* account for digit before decpt */
- prec = DEFPREC + 1;
- else
- prec++;
- goto fp_begin;
- case 'f':
- case 'F':
- expchar = '\0';
- goto fp_begin;
- case 'g':
- case 'G':
- expchar = ch - ('g' - 'e');
- if (prec == 0)
- prec = 1;
-fp_begin:
- if (prec < 0)
- prec = DEFPREC;
- if (dtoaresult)
- __freedtoa(dtoaresult);
- if (flags & LONGDBL) {
- fparg.ldbl = GETARG(long double);
- dtoaresult = cp =
- __ldtoa(&fparg.ldbl, expchar ? 2 : 3, prec,
- &expt, &signflag, &dtoaend);
- if (dtoaresult == NULL) {
- errno = ENOMEM;
- goto error;
- }
- } else {
- fparg.dbl = GETARG(double);
- dtoaresult = cp =
- __dtoa(fparg.dbl, expchar ? 2 : 3, prec,
- &expt, &signflag, &dtoaend);
- if (dtoaresult == NULL) {
- errno = ENOMEM;
- goto error;
- }
- if (expt == 9999)
- expt = INT_MAX;
- }
-fp_common:
- if (signflag)
- sign = '-';
- if (expt == INT_MAX) { /* inf or nan */
- if (*cp == 'N') {
- cp = (ch >= 'a') ? "nan" : "NAN";
- sign = '\0';
- } else
- cp = (ch >= 'a') ? "inf" : "INF";
- size = 3;
- flags &= ~ZEROPAD;
- break;
- }
- flags |= FPT;
- ndig = dtoaend - cp;
- if (ch == 'g' || ch == 'G') {
- if (expt > -4 && expt <= prec) {
- /* Make %[gG] smell like %[fF] */
- expchar = '\0';
- if (flags & ALT)
- prec -= expt;
- else
- prec = ndig - expt;
- if (prec < 0)
- prec = 0;
- } else {
- /*
- * Make %[gG] smell like %[eE], but
- * trim trailing zeroes if no # flag.
- */
- if (!(flags & ALT))
- prec = ndig;
- }
- }
- if (expchar) {
- expsize = exponent(expstr, expt - 1, expchar);
- size = expsize + prec;
- if (prec > 1 || flags & ALT)
- ++size;
- } else {
- /* space for digits before decimal point */
- if (expt > 0)
- size = expt;
- else /* "0" */
- size = 1;
- /* space for decimal pt and following digits */
- if (prec || flags & ALT)
- size += prec + 1;
- lead = expt;
- }
- break;
-#endif /* FLOATING_POINT */
- case 'n':
- if (flags & LLONGINT)
- *GETARG(long long *) = ret;
- else if (flags & LONGINT)
- *GETARG(long *) = ret;
- else if (flags & SHORTINT)
- *GETARG(short *) = ret;
- else if (flags & CHARINT)
- *GETARG(__signed char *) = ret;
- else if (flags & PTRINT)
- *GETARG(ptrdiff_t *) = ret;
- else if (flags & SIZEINT)
- *GETARG(ssize_t *) = ret;
- else if (flags & MAXINT)
- *GETARG(intmax_t *) = ret;
- else
- *GETARG(int *) = ret;
- continue; /* no output */
- case 'O':
- flags |= LONGINT;
- /*FALLTHROUGH*/
- case 'o':
- _umax = UARG();
- base = OCT;
- goto nosign;
- case 'p':
- /*
- * ``The argument shall be a pointer to void. The
- * value of the pointer is converted to a sequence
- * of printable characters, in an implementation-
- * defined manner.''
- * -- ANSI X3J11
- */
- /* NOSTRICT */
- _umax = (u_long)GETARG(void *);
- base = HEX;
- xdigs = xdigs_lower;
- ox[1] = 'x';
- goto nosign;
- case 's':
- if ((cp = GETARG(char *)) == NULL)
- cp = null_str;
- if (prec >= 0) {
- /*
- * can't use strlen; can only look for the
- * NUL in the first `prec' characters, and
- * strlen() will go further.
- */
- char *p = memchr(cp, 0, prec);
-
- size = p ? (p - cp) : prec;
- } else {
- size_t len;
-
- if ((len = strlen(cp)) > INT_MAX)
- goto overflow;
- size = (int)len;
- }
- sign = '\0';
- break;
- case 'U':
- flags |= LONGINT;
- /*FALLTHROUGH*/
- case 'u':
- _umax = UARG();
- base = DEC;
- goto nosign;
- case 'X':
- xdigs = xdigs_upper;
- goto hex;
- case 'x':
- xdigs = xdigs_lower;
-hex: _umax = UARG();
- base = HEX;
- /* leading 0x/X only if non-zero */
- if (flags & ALT && _umax != 0)
- ox[1] = ch;
-
- /* unsigned conversions */
-nosign: sign = '\0';
- /*
- * ``... diouXx conversions ... if a precision is
- * specified, the 0 flag will be ignored.''
- * -- ANSI X3J11
- */
-number: if ((dprec = prec) >= 0)
- flags &= ~ZEROPAD;
-
- /*
- * ``The result of converting a zero value with an
- * explicit precision of zero is no characters.''
- * -- ANSI X3J11
- */
- cp = buf + BUF;
- if (_umax != 0 || prec != 0) {
- /*
- * Unsigned mod is hard, and unsigned mod
- * by a constant is easier than that by
- * a variable; hence this switch.
- */
- switch (base) {
- case OCT:
- do {
- *--cp = to_char(_umax & 7);
- _umax >>= 3;
- } while (_umax);
- /* handle octal leading 0 */
- if (flags & ALT && *cp != '0')
- *--cp = '0';
- break;
-
- case DEC:
- /* many numbers are 1 digit */
- while (_umax >= 10) {
- *--cp = to_char(_umax % 10);
- _umax /= 10;
- }
- *--cp = to_char(_umax);
- break;
-
- case HEX:
- do {
- *--cp = xdigs[_umax & 15];
- _umax >>= 4;
- } while (_umax);
- break;
-
- default:
- cp = bad_base_str;
- size = strlen(cp);
- goto skipsize;
- }
- }
- size = buf + BUF - cp;
- if (size > BUF) /* should never happen */
- abort();
- skipsize:
- break;
- default: /* "%?" prints ?, unless ? is NUL */
- if (ch == '\0')
- goto done;
- /* pretend it was %c with argument ch */
- cp = buf;
- *cp = ch;
- size = 1;
- sign = '\0';
- break;
- }
-
- /*
- * All reasonable formats wind up here. At this point, `cp'
- * points to a string which (if not flags&LADJUST) should be
- * padded out to `width' places. If flags&ZEROPAD, it should
- * first be prefixed by any sign or other prefix; otherwise,
- * it should be blank padded before the prefix is emitted.
- * After any left-hand padding and prefixing, emit zeroes
- * required by a decimal %[diouxX] precision, then print the
- * string proper, then emit zeroes required by any leftover
- * floating precision; finally, if LADJUST, pad with blanks.
- *
- * Compute actual size, so we know how much to pad.
- * size excludes decimal prec; realsz includes it.
- */
- realsz = dprec > size ? dprec : size;
- if (sign)
- realsz++;
- if (ox[1])
- realsz+= 2;
-
- /* right-adjusting blank padding */
- if ((flags & (LADJUST|ZEROPAD)) == 0)
- PAD(width - realsz, blanks);
-
- /* prefix */
- if (sign)
- PRINT(&sign, 1);
- if (ox[1]) { /* ox[1] is either x, X, or \0 */
- ox[0] = '0';
- PRINT(ox, 2);
- }
-
- /* right-adjusting zero padding */
- if ((flags & (LADJUST|ZEROPAD)) == ZEROPAD)
- PAD(width - realsz, zeroes);
-
- /* leading zeroes from decimal precision */
- PAD(dprec - size, zeroes);
-
- /* the string or number proper */
-#ifdef FLOATING_POINT
- if ((flags & FPT) == 0) {
- PRINT(cp, size);
- } else { /* glue together f_p fragments */
- if (!expchar) { /* %[fF] or sufficiently short %[gG] */
- if (expt <= 0) {
- PRINT(zeroes, 1);
- if (prec || flags & ALT)
- PRINT(decimal_point, 1);
- PAD(-expt, zeroes);
- /* already handled initial 0's */
- prec += expt;
- } else {
- PRINTANDPAD(cp, dtoaend, lead, zeroes);
- cp += lead;
- if (prec || flags & ALT)
- PRINT(decimal_point, 1);
- }
- PRINTANDPAD(cp, dtoaend, prec, zeroes);
- } else { /* %[eE] or sufficiently long %[gG] */
- if (prec > 1 || flags & ALT) {
- buf[0] = *cp++;
- buf[1] = *decimal_point;
- PRINT(buf, 2);
- PRINT(cp, ndig-1);
- PAD(prec - ndig, zeroes);
- } else { /* XeYYY */
- PRINT(cp, 1);
- }
- PRINT(expstr, expsize);
- }
- }
-#else
- PRINT(cp, size);
-#endif
- /* left-adjusting padding (always blank) */
- if (flags & LADJUST)
- PAD(width - realsz, blanks);
-
- /* finally, adjust ret */
- if (width < realsz)
- width = realsz;
- if (width > INT_MAX - ret)
- goto overflow;
- ret += width;
-
- FLUSH(); /* copy out the I/O vectors */
- }
-done:
- FLUSH();
-error:
- if (__sferror(fp))
- ret = -1;
- goto finish;
-
-overflow:
- errno = ENOMEM;
- ret = -1;
-
-finish:
- va_end(orgap);
-#ifdef FLOATING_POINT
- if (dtoaresult)
- __freedtoa(dtoaresult);
-#endif
- if (argtable != NULL && argtable != statargtable) {
- munmap(argtable, argtablesiz);
- argtable = NULL;
- }
- return (ret);
-}
-
-/*
- * Type ids for argument type table.
- */
-#define T_UNUSED 0
-#define T_SHORT 1
-#define T_U_SHORT 2
-#define TP_SHORT 3
-#define T_INT 4
-#define T_U_INT 5
-#define TP_INT 6
-#define T_LONG 7
-#define T_U_LONG 8
-#define TP_LONG 9
-#define T_LLONG 10
-#define T_U_LLONG 11
-#define TP_LLONG 12
-#define T_DOUBLE 13
-#define T_LONG_DOUBLE 14
-#define TP_CHAR 15
-#define TP_VOID 16
-#define T_PTRINT 17
-#define TP_PTRINT 18
-#define T_SIZEINT 19
-#define T_SSIZEINT 20
-#define TP_SSIZEINT 21
-#define T_MAXINT 22
-#define T_MAXUINT 23
-#define TP_MAXINT 24
-#define T_CHAR 25
-#define T_U_CHAR 26
-
-/*
- * Find all arguments when a positional parameter is encountered. Returns a
- * table, indexed by argument number, of pointers to each arguments. The
- * initial argument table should be an array of STATIC_ARG_TBL_SIZE entries.
- * It will be replaced with a mmap-ed one if it overflows (malloc cannot be
- * used since we are attempting to make snprintf thread safe, and alloca is
- * problematic since we have nested functions..)
- */
-static int
-__find_arguments(const char *fmt0, va_list ap, union arg **argtable,
- size_t *argtablesiz)
-{
- char *fmt; /* format string */
- int ch; /* character from fmt */
- int n, n2; /* handy integer (short term usage) */
- char *cp; /* handy char pointer (short term usage) */
- int flags; /* flags as above */
- unsigned char *typetable; /* table of types */
- unsigned char stattypetable[STATIC_ARG_TBL_SIZE];
- int tablesize; /* current size of type table */
- int tablemax; /* largest used index in table */
- int nextarg; /* 1-based argument index */
- int ret = 0; /* return value */
- wchar_t wc;
- mbstate_t ps;
-
- /*
- * Add an argument type to the table, expanding if necessary.
- */
-#define ADDTYPE(type) \
- ((nextarg >= tablesize) ? \
- __grow_type_table(&typetable, &tablesize) : 0, \
- (nextarg > tablemax) ? tablemax = nextarg : 0, \
- typetable[nextarg++] = type)
-
-#define ADDSARG() \
- ((flags&MAXINT) ? ADDTYPE(T_MAXINT) : \
- ((flags&PTRINT) ? ADDTYPE(T_PTRINT) : \
- ((flags&SIZEINT) ? ADDTYPE(T_SSIZEINT) : \
- ((flags&LLONGINT) ? ADDTYPE(T_LLONG) : \
- ((flags&LONGINT) ? ADDTYPE(T_LONG) : \
- ((flags&SHORTINT) ? ADDTYPE(T_SHORT) : \
- ((flags&CHARINT) ? ADDTYPE(T_CHAR) : ADDTYPE(T_INT))))))))
-
-#define ADDUARG() \
- ((flags&MAXINT) ? ADDTYPE(T_MAXUINT) : \
- ((flags&PTRINT) ? ADDTYPE(T_PTRINT) : \
- ((flags&SIZEINT) ? ADDTYPE(T_SIZEINT) : \
- ((flags&LLONGINT) ? ADDTYPE(T_U_LLONG) : \
- ((flags&LONGINT) ? ADDTYPE(T_U_LONG) : \
- ((flags&SHORTINT) ? ADDTYPE(T_U_SHORT) : \
- ((flags&CHARINT) ? ADDTYPE(T_U_CHAR) : ADDTYPE(T_U_INT))))))))
-
- /*
- * Add * arguments to the type array.
- */
-#define ADDASTER() \
- n2 = 0; \
- cp = fmt; \
- while (is_digit(*cp)) { \
- APPEND_DIGIT(n2, *cp); \
- cp++; \
- } \
- if (*cp == '$') { \
- int hold = nextarg; \
- nextarg = n2; \
- ADDTYPE(T_INT); \
- nextarg = hold; \
- fmt = ++cp; \
- } else { \
- ADDTYPE(T_INT); \
- }
- fmt = (char *)fmt0;
- typetable = stattypetable;
- tablesize = STATIC_ARG_TBL_SIZE;
- tablemax = 0;
- nextarg = 1;
- memset(typetable, T_UNUSED, STATIC_ARG_TBL_SIZE);
- memset(&ps, 0, sizeof(ps));
-
- /*
- * Scan the format for conversions (`%' character).
- */
- for (;;) {
- cp = fmt;
- while ((n = ust_safe_mbrtowc(&wc, fmt, MB_CUR_MAX, &ps)) > 0) {
- fmt += n;
- if (wc == '%') {
- fmt--;
- break;
- }
- }
- if (n <= 0)
- goto done;
- fmt++; /* skip over '%' */
-
- flags = 0;
-
-rflag: ch = *fmt++;
-reswitch: switch (ch) {
- case ' ':
- case '#':
- case '\'':
- goto rflag;
- case '*':
- ADDASTER();
- goto rflag;
- case '-':
- case '+':
- goto rflag;
- case '.':
- if ((ch = *fmt++) == '*') {
- ADDASTER();
- goto rflag;
- }
- while (is_digit(ch)) {
- ch = *fmt++;
- }
- goto reswitch;
- case '0':
- goto rflag;
- case '1': case '2': case '3': case '4':
- case '5': case '6': case '7': case '8': case '9':
- n = 0;
- do {
- APPEND_DIGIT(n ,ch);
- ch = *fmt++;
- } while (is_digit(ch));
- if (ch == '$') {
- nextarg = n;
- goto rflag;
- }
- goto reswitch;
-#ifdef FLOATING_POINT
- case 'L':
- flags |= LONGDBL;
- goto rflag;
-#endif
- case 'h':
- if (*fmt == 'h') {
- fmt++;
- flags |= CHARINT;
- } else {
- flags |= SHORTINT;
- }
- goto rflag;
- case 'l':
- if (*fmt == 'l') {
- fmt++;
- flags |= LLONGINT;
- } else {
- flags |= LONGINT;
- }
- goto rflag;
- case 'q':
- flags |= LLONGINT;
- goto rflag;
- case 't':
- flags |= PTRINT;
- goto rflag;
- case 'z':
- flags |= SIZEINT;
- goto rflag;
- case 'c':
- ADDTYPE(T_INT);
- break;
- case 'D':
- flags |= LONGINT;
- /*FALLTHROUGH*/
- case 'd':
- case 'i':
- ADDSARG();
- break;
-#ifdef FLOATING_POINT
- case 'a':
- case 'A':
- case 'e':
- case 'E':
- case 'f':
- case 'F':
- case 'g':
- case 'G':
- if (flags & LONGDBL)
- ADDTYPE(T_LONG_DOUBLE);
- else
- ADDTYPE(T_DOUBLE);
- break;
-#endif /* FLOATING_POINT */
- case 'n':
- if (flags & LLONGINT)
- ADDTYPE(TP_LLONG);
- else if (flags & LONGINT)
- ADDTYPE(TP_LONG);
- else if (flags & SHORTINT)
- ADDTYPE(TP_SHORT);
- else if (flags & PTRINT)
- ADDTYPE(TP_PTRINT);
- else if (flags & SIZEINT)
- ADDTYPE(TP_SSIZEINT);
- else if (flags & MAXINT)
- ADDTYPE(TP_MAXINT);
- else
- ADDTYPE(TP_INT);
- continue; /* no output */
- case 'O':
- flags |= LONGINT;
- /*FALLTHROUGH*/
- case 'o':
- ADDUARG();
- break;
- case 'p':
- ADDTYPE(TP_VOID);
- break;
- case 's':
- ADDTYPE(TP_CHAR);
- break;
- case 'U':
- flags |= LONGINT;
- /*FALLTHROUGH*/
- case 'u':
- case 'X':
- case 'x':
- ADDUARG();
- break;
- default: /* "%?" prints ?, unless ? is NUL */
- if (ch == '\0')
- goto done;
- break;
- }
- }
-done:
- /*
- * Build the argument table.
- */
- if (tablemax >= STATIC_ARG_TBL_SIZE) {
- *argtablesiz = sizeof(union arg) * (tablemax + 1);
- *argtable = mmap(NULL, *argtablesiz,
- PROT_WRITE|PROT_READ, MAP_ANON|MAP_PRIVATE, -1, 0);
- if (*argtable == MAP_FAILED)
- return (-1);
- }
-
-#if 0
- /* XXX is this required? */
- (*argtable)[0].intarg = 0;
-#endif
- for (n = 1; n <= tablemax; n++) {
- switch (typetable[n]) {
- case T_UNUSED:
- case T_CHAR:
- case T_U_CHAR:
- case T_SHORT:
- case T_U_SHORT:
- case T_INT:
- (*argtable)[n].intarg = va_arg(ap, int);
- break;
- case TP_SHORT:
- (*argtable)[n].pshortarg = va_arg(ap, short *);
- break;
- case T_U_INT:
- (*argtable)[n].uintarg = va_arg(ap, unsigned int);
- break;
- case TP_INT:
- (*argtable)[n].pintarg = va_arg(ap, int *);
- break;
- case T_LONG:
- (*argtable)[n].longarg = va_arg(ap, long);
- break;
- case T_U_LONG:
- (*argtable)[n].ulongarg = va_arg(ap, unsigned long);
- break;
- case TP_LONG:
- (*argtable)[n].plongarg = va_arg(ap, long *);
- break;
- case T_LLONG:
- (*argtable)[n].longlongarg = va_arg(ap, long long);
- break;
- case T_U_LLONG:
- (*argtable)[n].ulonglongarg = va_arg(ap, unsigned long long);
- break;
- case TP_LLONG:
- (*argtable)[n].plonglongarg = va_arg(ap, long long *);
- break;
-#ifdef FLOATING_POINT
- case T_DOUBLE:
- (*argtable)[n].doublearg = va_arg(ap, double);
- break;
- case T_LONG_DOUBLE:
- (*argtable)[n].longdoublearg = va_arg(ap, long double);
- break;
-#endif
- case TP_CHAR:
- (*argtable)[n].pchararg = va_arg(ap, char *);
- break;
- case TP_VOID:
- (*argtable)[n].pvoidarg = va_arg(ap, void *);
- break;
- case T_PTRINT:
- (*argtable)[n].ptrdiffarg = va_arg(ap, ptrdiff_t);
- break;
- case TP_PTRINT:
- (*argtable)[n].pptrdiffarg = va_arg(ap, ptrdiff_t *);
- break;
- case T_SIZEINT:
- (*argtable)[n].sizearg = va_arg(ap, size_t);
- break;
- case T_SSIZEINT:
- (*argtable)[n].ssizearg = va_arg(ap, ssize_t);
- break;
- case TP_SSIZEINT:
- (*argtable)[n].pssizearg = va_arg(ap, ssize_t *);
- break;
- case TP_MAXINT:
- (*argtable)[n].intmaxarg = va_arg(ap, intmax_t);
- break;
- }
- }
- goto finish;
-
-overflow:
- errno = ENOMEM;
- ret = -1;
-
-finish:
- if (typetable != NULL && typetable != stattypetable) {
- munmap(typetable, *argtablesiz);
- typetable = NULL;
- }
- return (ret);
-}
-
-/*
- * Increase the size of the type table.
- */
-static int
-__grow_type_table(unsigned char **typetable, int *tablesize)
-{
- unsigned char *oldtable = *typetable;
- int newsize = *tablesize * 2;
-
- if (newsize < getpagesize())
- newsize = getpagesize();
-
- if (*tablesize == STATIC_ARG_TBL_SIZE) {
- *typetable = mmap(NULL, newsize, PROT_WRITE|PROT_READ,
- MAP_ANON|MAP_PRIVATE, -1, 0);
- if (*typetable == MAP_FAILED)
- return (-1);
- bcopy(oldtable, *typetable, *tablesize);
- } else {
- unsigned char *new = mmap(NULL, newsize, PROT_WRITE|PROT_READ,
- MAP_ANON|MAP_PRIVATE, -1, 0);
- if (new == MAP_FAILED)
- return (-1);
- memmove(new, *typetable, *tablesize);
- munmap(*typetable, *tablesize);
- *typetable = new;
- }
- memset(*typetable + *tablesize, T_UNUSED, (newsize - *tablesize));
-
- *tablesize = newsize;
- return (0);
-}
-
-
-#ifdef FLOATING_POINT
-static int
-exponent(char *p0, int exp, int fmtch)
-{
- char *p, *t;
- char expbuf[MAXEXPDIG];
-
- p = p0;
- *p++ = fmtch;
- if (exp < 0) {
- exp = -exp;
- *p++ = '-';
- } else
- *p++ = '+';
- t = expbuf + MAXEXPDIG;
- if (exp > 9) {
- do {
- *--t = to_char(exp % 10);
- } while ((exp /= 10) > 9);
- *--t = to_char(exp);
- for (; t < expbuf + MAXEXPDIG; *p++ = *t++)
- /* nothing */;
- } else {
- /*
- * Exponents for decimal floating point conversions
- * (%[eEgG]) must be at least two characters long,
- * whereas exponents for hexadecimal conversions can
- * be only one character long.
- */
- if (fmtch == 'e' || fmtch == 'E')
- *p++ = '0';
- *p++ = to_char(exp);
- }
- return (p - p0);
-}
-#endif /* FLOATING_POINT */
+++ /dev/null
-/* $OpenBSD: wcio.h,v 1.1 2005/06/17 20:40:32 espie Exp $ */
-/* $NetBSD: wcio.h,v 1.3 2003/01/18 11:30:00 thorpej Exp $ */
-
-/*
- * SPDX-License-Identifier: BSD-2-Clause
- *
- * Copyright (C)2001 Citrus Project,
- * All rights reserved.
- *
- * $Citrus$
- */
-
-#ifndef _WCIO_H_
-#define _WCIO_H_
-
-#include <stddef.h>
-#include <wchar.h>
-
-/* minimal requirement of SUSv2 */
-#define WCIO_UNGETWC_BUFSIZE 1
-
-struct wchar_io_data {
- mbstate_t wcio_mbstate_in;
- mbstate_t wcio_mbstate_out;
-
- wchar_t wcio_ungetwc_buf[WCIO_UNGETWC_BUFSIZE];
- size_t wcio_ungetwc_inbuf;
-
- int wcio_mode; /* orientation */
-};
-
-#define WCIO_GET(fp) \
- (_EXT(fp) ? &(_EXT(fp)->_wcio) : (struct wchar_io_data *)0)
-
-#define WCIO_GET_NONULL(fp) \
- (&(_EXT(fp)->_wcio))
-
-#define _SET_ORIENTATION(fp, mode) \
-do {\
- struct wchar_io_data *_wcio = WCIO_GET(fp); \
- if (_wcio && _wcio->wcio_mode == 0) \
- _wcio->wcio_mode = (mode);\
-} while (0)
-
-/*
- * WCIO_FREE should be called by fclose
- */
-#define WCIO_FREE(fp) \
-do {\
- struct wchar_io_data *_wcio = WCIO_GET(fp); \
- if (_wcio) { \
- _wcio->wcio_mode = 0;\
- _wcio->wcio_ungetwc_inbuf = 0;\
- } \
-} while (0)
-
-#define WCIO_FREEUB(fp) \
-do {\
- struct wchar_io_data *_wcio = WCIO_GET(fp); \
- if (_wcio) { \
- _wcio->wcio_ungetwc_inbuf = 0;\
- } \
-} while (0)
-
-#define WCIO_INIT(fp) \
- memset(WCIO_GET_NONULL(fp), 0, sizeof(struct wchar_io_data))
-
-#endif /*_WCIO_H_*/
+++ /dev/null
-/* $OpenBSD: wsetup.c,v 1.7 2005/08/08 08:05:36 espie Exp $ */
-/*
- * SPDX-License-Identifier: BSD-3-Clause
- *
- * Copyright (C) 1990, 1993
- * The Regents of the University of California. All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * Chris Torek.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <assert.h>
-#include "local.h"
-
-/*
- * Various output routines call wsetup to be sure it is safe to write,
- * because either _flags does not include __SWR, or _buf is NULL.
- * _wsetup returns 0 if OK to write, nonzero otherwise.
- */
-int
-__swsetup(LTTNG_UST_LFILE *fp)
-{
- /* make sure stdio is set up */
-// if (!__sdidinit)
-// __sinit();
-
- /*
- * If we are not writing, we had better be reading and writing.
- */
- if ((fp->_flags & __SWR) == 0) {
- if ((fp->_flags & __SRW) == 0)
- return (EOF);
- if (fp->_flags & __SRD) {
- /* clobber any ungetc data */
- if (HASUB(fp))
- FREEUB(fp);
- fp->_flags &= ~(__SRD|__SEOF);
- fp->_r = 0;
- fp->_p = fp->_bf._base;
- }
- fp->_flags |= __SWR;
- }
-
- /*
- * Make a buffer if necessary, then set _w.
- */
- if (fp->_bf._base == NULL) {
-// if ((fp->_flags & (__SSTR | __SALC)) == __SSTR)
-// return (EOF);
-// __smakebuf(fp);
- assert(0);
- }
- if (fp->_flags & __SLBF) {
- /*
- * It is line buffered, so make _lbfsize be -_bufsize
- * for the putc() macro. We will change _lbfsize back
- * to 0 whenever we turn off __SWR.
- */
- fp->_w = 0;
- fp->_lbfsize = -fp->_bf._size;
- } else
- fp->_w = fp->_flags & __SNBF ? 0 : fp->_bf._size;
- return (0);
-}
test_shm_LDADD = \
$(top_builddir)/src/libringbuffer/libringbuffer.la \
$(top_builddir)/src/liblttng-ust-comm/liblttng-ust-comm.la \
- $(top_builddir)/src/snprintf/libustsnprintf.la \
+ $(top_builddir)/src/common/libcommon.la \
$(top_builddir)/tests/utils/libtap.a
noinst_PROGRAMS = test_snprintf
test_snprintf_SOURCES = snprintf.c
test_snprintf_LDADD = \
- $(top_builddir)/src/snprintf/libustsnprintf.la \
+ $(top_builddir)/src/common/snprintf/libsnprintf.la \
$(top_builddir)/tests/utils/libtap.a
EXTRA_DIST = README
projects / lttng-ust.git / commitdiff
