/*
* Copyright (C) 2017 Philippe Proulx <pproulx@efficios.com>
*
- * SPDX-License-Identifier: GPL-2.0-only
+ * SPDX-License-Identifier: LGPL-2.1-only
*
*/
#define _LGPL_SOURCE
#include <stdlib.h>
+#include <stdio.h>
#include <string.h>
#include <stdbool.h>
#include <type_traits>
#include <assert.h>
#include <errno.h>
+#include <stdarg.h>
-#include "string-utils.h"
-#include "../macros.h"
+#include "string-utils.hpp"
+#include "../macros.hpp"
enum star_glob_pattern_type_flags {
STAR_GLOB_PATTERN_TYPE_FLAG_NONE = 0,
goto end;
}
- /* Fall through default case. */
+ /* fall through */
default:
got_star = false;
break;
free(old);
return 0;
}
+
+int strutils_appendf(char **s, const char *fmt, ...)
+{
+ char *new_str;
+ size_t oldlen = (*s) ? strlen(*s) : 0;
+ int ret;
+ va_list args;
+
+ /* Compute length of formatted string we append. */
+ va_start(args, fmt);
+ ret = vsnprintf(NULL, 0, fmt, args);
+ va_end(args);
+
+ if (ret == -1) {
+ goto end;
+ }
+
+ /* Allocate space for old string + new string + \0. */
+ new_str = (char *) zmalloc(oldlen + ret + 1);
+ if (!new_str) {
+ ret = -ENOMEM;
+ goto end;
+ }
+
+ /* Copy old string, if there was one. */
+ if (oldlen) {
+ strcpy(new_str, *s);
+ }
+
+ /* Format new string in-place. */
+ va_start(args, fmt);
+ ret = vsprintf(&new_str[oldlen], fmt, args);
+ va_end(args);
+
+ if (ret == -1) {
+ ret = -1;
+ goto end;
+ }
+
+ free(*s);
+ *s = new_str;
+ new_str = NULL;
+
+end:
+ return ret;
+}