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d8292558bd
This is necessary to guarantee that all log messages sent from the child processes are received in the parent process right away. Without this patch, when a child process calls fatal() or fatalx(), the log messages don't make it to the parent because the child doesn't have a chance to flush its buffers before exiting. Signed-off-by: Renato Westphal <renato@opensourcerouting.org>
150 lines
2.8 KiB
C
150 lines
2.8 KiB
C
/* $OpenBSD$ */
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/*
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* Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <zebra.h>
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#include "ldpd.h"
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#include "ldpe.h"
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#include "lde.h"
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#include "log.h"
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#include <lib/log.h>
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#include <lib/log_int.h>
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const char *log_procname;
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void
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logit(int pri, const char *fmt, ...)
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{
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va_list ap;
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va_start(ap, fmt);
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vlog(pri, fmt, ap);
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va_end(ap);
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}
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void
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vlog(int pri, const char *fmt, va_list ap)
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{
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char buf[1024];
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switch (ldpd_process) {
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case PROC_LDE_ENGINE:
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vsnprintf(buf, sizeof(buf), fmt, ap);
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lde_imsg_compose_parent_sync(IMSG_LOG, pri, buf,
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strlen(buf) + 1);
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break;
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case PROC_LDP_ENGINE:
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vsnprintf(buf, sizeof(buf), fmt, ap);
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ldpe_imsg_compose_parent_sync(IMSG_LOG, pri, buf,
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strlen(buf) + 1);
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break;
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case PROC_MAIN:
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vzlog(pri, fmt, ap);
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break;
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}
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}
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void
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log_warn(const char *emsg, ...)
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{
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char *nfmt;
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va_list ap;
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/* best effort to even work in out of memory situations */
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if (emsg == NULL)
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logit(LOG_ERR, "%s", strerror(errno));
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else {
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va_start(ap, emsg);
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if (asprintf(&nfmt, "%s: %s", emsg, strerror(errno)) == -1) {
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/* we tried it... */
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vlog(LOG_ERR, emsg, ap);
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logit(LOG_ERR, "%s", strerror(errno));
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} else {
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vlog(LOG_ERR, nfmt, ap);
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free(nfmt);
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}
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va_end(ap);
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}
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}
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void
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log_warnx(const char *emsg, ...)
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{
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va_list ap;
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va_start(ap, emsg);
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vlog(LOG_ERR, emsg, ap);
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va_end(ap);
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}
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void
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log_info(const char *emsg, ...)
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{
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va_list ap;
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va_start(ap, emsg);
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vlog(LOG_INFO, emsg, ap);
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va_end(ap);
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}
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void
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log_notice(const char *emsg, ...)
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{
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va_list ap;
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va_start(ap, emsg);
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vlog(LOG_NOTICE, emsg, ap);
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va_end(ap);
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}
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void
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log_debug(const char *emsg, ...)
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{
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va_list ap;
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va_start(ap, emsg);
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vlog(LOG_DEBUG, emsg, ap);
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va_end(ap);
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}
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void
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fatal(const char *emsg)
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{
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if (emsg == NULL)
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logit(LOG_CRIT, "fatal in %s: %s", log_procname,
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strerror(errno));
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else
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if (errno)
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logit(LOG_CRIT, "fatal in %s: %s: %s",
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log_procname, emsg, strerror(errno));
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else
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logit(LOG_CRIT, "fatal in %s: %s",
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log_procname, emsg);
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exit(1);
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}
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void
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fatalx(const char *emsg)
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{
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errno = 0;
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fatal(emsg);
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}
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