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(IMSG_LOG, pri, buf, strlen(buf) + 1);
  50                 break;
  51         case PROC_LDP_ENGINE:
  52                 vsnprintf(buf, sizeof(buf), fmt, ap);
  53                 ldpe_imsg_compose_parent(IMSG_LOG, pri, buf, strlen(buf) + 1);
  54                 break;
  55         case PROC_MAIN:
  56                 vzlog(pri, fmt, ap);
  57                 break;
  58         }
  59 }
  60
  61 void
  62 log_warn(const char *emsg, ...)
  63 {
  64         char    *nfmt;
  65         va_list  ap;
  66
  67         /* best effort to even work in out of memory situations */
  68         if (emsg == NULL)
  69                 logit(LOG_CRIT, "%s", strerror(errno));
  70         else {
  71                 va_start(ap, emsg);
  72
  73                 if (asprintf(&nfmt, "%s: %s", emsg, strerror(errno)) == -1) {
  74                         /* we tried it... */
  75                         vlog(LOG_CRIT, emsg, ap);
  76                         logit(LOG_CRIT, "%s", strerror(errno));
  77                 } else {
  78                         vlog(LOG_CRIT, nfmt, ap);
  79                         free(nfmt);
  80                 }
  81                 va_end(ap);
  82         }
  83 }
  84
  85 void
  86 log_warnx(const char *emsg, ...)
  87 {
  88         va_list  ap;
  89
  90         va_start(ap, emsg);
  91         vlog(LOG_CRIT, emsg, ap);
  92         va_end(ap);
  93 }
  94
  95 void
  96 log_info(const char *emsg, ...)
  97 {
  98         va_list  ap;
  99
 100         va_start(ap, emsg);
 101         vlog(LOG_INFO, emsg, ap);
 102         va_end(ap);
 103 }
 104
 105 void
 106 log_notice(const char *emsg, ...)
 107 {
 108         va_list  ap;
 109
 110         va_start(ap, emsg);
 111         vlog(LOG_NOTICE, emsg, ap);
 112         va_end(ap);
 113 }
 114
 115 void
 116 log_debug(const char *emsg, ...)
 117 {
 118         va_list  ap;
 119
 120         va_start(ap, emsg);
 121         vlog(LOG_DEBUG, emsg, ap);
 122         va_end(ap);
 123 }
 124
 125 void
 126 fatal(const char *emsg)
 127 {
 128         if (emsg == NULL)
 129                 logit(LOG_CRIT, "fatal in %s: %s", log_procname,
 130                     strerror(errno));
 131         else
 132                 if (errno)
 133                         logit(LOG_CRIT, "fatal in %s: %s: %s",
 134                             log_procname, emsg, strerror(errno));
 135                 else
 136                         logit(LOG_CRIT, "fatal in %s: %s",
 137                             log_procname, emsg);
 138
 139         exit(1);
 140 }
 141
 142 void
 143 fatalx(const char *emsg)
 144 {
 145         errno = 0;
 146         fatal(emsg);
 147 }