170 lines
2.6 KiB
C
170 lines
2.6 KiB
C
/*
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* BIRD Library -- Logging Functions
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*
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* (c) 1998 Martin Mares <mj@ucw.cz>
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*
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* Can be freely distributed and used under the terms of the GNU GPL.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdarg.h>
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#include <sys/time.h>
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#include "nest/bird.h"
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#include "lib/string.h"
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static int log_inited;
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static FILE *logf = NULL;
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static FILE *dbgf = NULL;
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#ifdef HAVE_SYSLOG
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#include <sys/syslog.h>
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static int syslog_priorities[] = {
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LOG_INFO,
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LOG_DEBUG,
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LOG_INFO,
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LOG_WARNING,
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LOG_ERR,
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LOG_NOTICE,
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LOG_CRIT
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};
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#endif
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static char *class_names[] = {
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"???",
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"DBG",
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"INFO",
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"WARN",
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"ERR",
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"AUTH",
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"FATAL"
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};
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/* FIXME: Use better buffering */
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static void
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bvfprintf(FILE *f, char *fmt, va_list args)
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{
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char buf[4096];
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int n;
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n = bvsprintf(buf, fmt, args);
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fwrite(buf, n, sizeof(char), f);
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}
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static void
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bfprintf(FILE *f, char *fmt, ...)
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{
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va_list args;
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va_start(args, fmt);
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bvfprintf(f, fmt, args);
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va_end(args);
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}
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static void
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vlog(int class, char *msg, va_list args)
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{
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if (logf)
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{
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time_t now = time(NULL);
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struct tm *tm = localtime(&now);
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bfprintf(logf, "%02d-%02d-%04d %02d:%02d:%02d <%s> ",
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tm->tm_mday,
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tm->tm_mon+1,
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tm->tm_year+1900,
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tm->tm_hour,
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tm->tm_min,
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tm->tm_sec,
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class_names[class]);
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bvfprintf(logf, msg, args);
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fputc('\n', logf);
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fflush(logf);
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}
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#ifdef HAVE_SYSLOG
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else if (log_inited)
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vsyslog(syslog_priorities[class], msg, args);
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#endif
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else
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{
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fputs("bird: ", stderr);
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bvfprintf(stderr, msg, args);
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fputc('\n', stderr);
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fflush(stderr);
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}
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}
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void
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log(char *msg, ...)
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{
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int class = 1;
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va_list args;
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va_start(args, msg);
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if (*msg >= 1 && *msg <= 6)
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class = *msg++;
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vlog(class, msg, args);
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va_end(args);
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}
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void
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die(char *msg, ...)
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{
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va_list args;
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va_start(args, msg);
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vlog(6, msg, args);
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exit(1);
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}
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void
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debug(char *msg, ...)
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{
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va_list args;
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va_start(args, msg);
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if (dbgf)
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bvfprintf(dbgf, msg, args);
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va_end(args);
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}
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void
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log_init(char *f)
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{
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FILE *new;
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if (!f)
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new = stderr;
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else if (!*f)
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{
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new = NULL;
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#ifdef HAVE_SYSLOG
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openlog("bird", LOG_CONS | LOG_NDELAY, LOG_DAEMON);
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#endif
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}
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else if (!(new = fopen(f, "a")))
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{
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log(L_ERR "Unable to open log file `%s': %m", f);
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return;
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}
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if (logf && logf != stderr)
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fclose(logf);
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logf = new;
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log_inited = 1;
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}
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void
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log_init_debug(char *f)
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{
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if (dbgf && dbgf != stderr)
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fclose(dbgf);
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if (!f)
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dbgf = stderr;
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else if (!*f)
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dbgf = NULL;
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else if (!(dbgf = fopen(f, "a")))
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log(L_ERR "Error opening debug file `%s': %m", f);
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}
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