/*
- * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
- * Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ * Copyright (C) 2011 David Goulet <david.goulet@polymtl.ca>
+ * Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2 only,
- * as published by the Free Software Foundation.
+ * SPDX-License-Identifier: GPL-2.0-only
*
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#define _LGPL_SOURCE
if (errno == EINTR) {
goto retry;
} else {
- /*
- * Only warn about EPIPE when quiet mode is
- * deactivated.
- * We consider EPIPE as expected.
- */
- if (errno != EPIPE || !lttng_opt_quiet) {
+ /* We consider EPIPE and EAGAIN as expected. */
+ if (!lttng_opt_quiet &&
+ (errno != EPIPE && errno != EAGAIN)) {
PERROR("recvmsg");
}
goto end;
if (errno == EINTR) {
goto retry;
} else {
- /*
- * Only warn about EPIPE when quiet mode is
- * deactivated.
- * We consider EPIPE as expected.
- */
- if (errno != EPIPE || !lttng_opt_quiet) {
+ /* We consider EPIPE and EAGAIN as expected. */
+ if (!lttng_opt_quiet &&
+ (errno != EPIPE && errno != EAGAIN)) {
PERROR("sendmsg");
}
goto end;
struct cmsghdr *cmsg;
size_t sizeof_fds = nb_fd * sizeof(int);
- /* Account for the struct ucred cmsg in the buffer size */
- char recv_buf[CMSG_SPACE(sizeof_fds) + CMSG_SPACE(sizeof(struct ucred))];
+#ifdef __linux__
+/* Account for the struct ucred cmsg in the buffer size */
+#define LTTNG_SOCK_RECV_FDS_BUF_SIZE CMSG_SPACE(sizeof_fds) + CMSG_SPACE(sizeof(struct ucred))
+#else
+#define LTTNG_SOCK_RECV_FDS_BUF_SIZE CMSG_SPACE(sizeof_fds)
+#endif /* __linux__ */
+
+ char recv_buf[LTTNG_SOCK_RECV_FDS_BUF_SIZE];
struct msghdr msg;
char dummy;
ret = sizeof_fds;
goto end;
}
+#ifdef __linux__
if (cmsg->cmsg_type == SCM_CREDENTIALS) {
/*
* Expect credentials to be sent when expecting fds even
*/
ret = -1;
}
+#endif /* __linux__ */
}
end:
return ret;