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#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <stdarg.h>
#include <syslog.h>
#include <time.h>
#include <sys/types.h>
#include "gsmd.h"
#include <gsmd/gsmd.h>
static FILE *logfile;
static FILE syslog_dummy;
static int loglevel;
static int gsmd2syslog[] = {
[GSMD_DEBUG] = LOG_DEBUG,
[GSMD_INFO] = LOG_INFO,
[GSMD_NOTICE] = LOG_NOTICE,
[GSMD_ERROR] = LOG_ERR,
[GSMD_FATAL] = LOG_CRIT,
};
static inline int gsmd2syslog_level(int level)
{
if (level >= ARRAY_SIZE(gsmd2syslog))
return LOG_ERR;
return gsmd2syslog[level];
}
void __gsmd_log(int level, const char *file, int line, const char *function,
const char *format, ...)
{
char *timestr;
va_list ap;
time_t tm;
FILE *outfd;
if (level < loglevel)
return;
if (logfile == &syslog_dummy) {
va_start(ap, format);
vsyslog(gsmd2syslog_level(level), format, ap);
va_end(ap);
} else {
if (logfile)
outfd = logfile;
else
outfd = stderr;
tm = time(NULL);
timestr = ctime(&tm);
timestr[strlen(timestr)-1] = '\0';
fprintf(outfd, "%s <%1.1d> %s:%d:%s() ", timestr, level, file,
line, function);
va_start(ap, format);
vfprintf(outfd, format, ap);
va_end(ap);
fflush(outfd);
}
}
int gsmdlog_init(const char *path)
{
if (!strcmp(path, "syslog")) {
logfile = &syslog_dummy;
openlog("gsmd", 0, LOG_DAEMON);
} else {
logfile = fopen(path, "a+");
}
if (logfile == NULL)
return -1;
gsmd_log(LOG_INFO, "logfile successfully opened\n");
return 0;
}
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