ldpd/log.c

   1 /*      $OpenBSD$ */
   2
   3 /*
   4  * Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org>
   5  *
   6  * Permission to use, copy, modify, and distribute this software for any
   7  * purpose with or without fee is hereby granted, provided that the above
   8  * copyright notice and this permission notice appear in all copies.
   9  *
  10  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  13  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  14  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  15  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  16  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  17  */
  18
  19 #include <zebra.h>
  20
  21 #include "ldpd.h"
  22 #include "ldpe.h"
  23 #include "lde.h"
  24 #include "log.h"
  25
  26 #include <lib/log.h>
  27 #include <lib/log_int.h>
  28
  29 const char      *log_procname;
  30
  31 void
  32 logit(int pri, const char *fmt, ...)
  33 {
  34         va_list ap;
  35
  36         va_start(ap, fmt);
  37         vlog(pri, fmt, ap);
  38         va_end(ap);
  39 }
  40
  41 void
  42 vlog(int pri, const char *fmt, va_list ap)
  43 {
  44         char     buf[1024];
  45
  46         switch (ldpd_process) {
  47         case PROC_LDE_ENGINE:
  48                 vsnprintf(buf, sizeof(buf), fmt, ap);
  49                 lde_imsg_compose_parent_sync(IMSG_LOG, pri, buf,
  50                     strlen(buf) + 1);
  51                 break;
  52         case PROC_LDP_ENGINE:
  53                 vsnprintf(buf, sizeof(buf), fmt, ap);
  54                 ldpe_imsg_compose_parent_sync(IMSG_LOG, pri, buf,
  55                     strlen(buf) + 1);
  56                 break;
  57         case PROC_MAIN:
  58                 vzlog(pri, fmt, ap);
  59                 break;
  60         }
  61 }
  62
  63 void
  64 log_warn(const char *emsg, ...)
  65 {
  66         char    *nfmt;
  67         va_list  ap;
  68
  69         /* best effort to even work in out of memory situations */
  70         if (emsg == NULL)
  71                 logit(LOG_ERR, "%s", strerror(errno));
  72         else {
  73                 va_start(ap, emsg);
  74
  75                 if (asprintf(&nfmt, "%s: %s", emsg, strerror(errno)) == -1) {
  76                         /* we tried it... */
  77                         vlog(LOG_ERR, emsg, ap);
  78                         logit(LOG_ERR, "%s", strerror(errno));
  79                 } else {
  80                         vlog(LOG_ERR, nfmt, ap);
  81                         free(nfmt);
  82                 }
  83                 va_end(ap);
  84         }
  85 }
  86
  87 void
  88 log_warnx(const char *emsg, ...)
  89 {
  90         va_list  ap;
  91
  92         va_start(ap, emsg);
  93         vlog(LOG_ERR, emsg, ap);
  94         va_end(ap);
  95 }
  96
  97 void
  98 log_info(const char *emsg, ...)
  99 {
 100         va_list  ap;
 101
 102         va_start(ap, emsg);
 103         vlog(LOG_INFO, emsg, ap);
 104         va_end(ap);
 105 }
 106
 107 void
 108 log_notice(const char *emsg, ...)
 109 {
 110         va_list  ap;
 111
 112         va_start(ap, emsg);
 113         vlog(LOG_NOTICE, emsg, ap);
 114         va_end(ap);
 115 }
 116
 117 void
 118 log_debug(const char *emsg, ...)
 119 {
 120         va_list  ap;
 121
 122         va_start(ap, emsg);
 123         vlog(LOG_DEBUG, emsg, ap);
 124         va_end(ap);
 125 }
 126
 127 void
 128 fatal(const char *emsg)
 129 {
 130         if (emsg == NULL)
 131                 logit(LOG_CRIT, "fatal in %s: %s", log_procname,
 132                     strerror(errno));
 133         else
 134                 if (errno)
 135                         logit(LOG_CRIT, "fatal in %s: %s: %s",
 136                             log_procname, emsg, strerror(errno));
 137                 else
 138                         logit(LOG_CRIT, "fatal in %s: %s",
 139                             log_procname, emsg);
 140
 141         exit(1);
 142 }
 143
 144 void
 145 fatalx(const char *emsg)
 146 {
 147         errno = 0;
 148         fatal(emsg);
 149 }