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/*
* log.c:
*
* Copyright (c) 2008 James McKenzie <james@fishsoup.dhs.org>,
* All rights reserved.
*
*/
static char rcsid[] = "$Id$";
/*
* $Log$
* Revision 1.10 2008/03/07 12:37:04 james
* *** empty log message ***
*
* Revision 1.9 2008/03/03 06:20:14 james
* *** empty log message ***
*
* Revision 1.8 2008/03/03 06:04:42 james
* *** empty log message ***
*
* Revision 1.7 2008/03/03 06:04:18 james
* *** empty log message ***
*
* Revision 1.6 2008/03/02 10:37:56 james
* *** empty log message ***
*
* Revision 1.5 2008/02/27 01:31:14 james
* *** empty log message ***
*
* Revision 1.4 2008/02/27 00:54:16 james
* *** empty log message ***
*
* Revision 1.3 2008/02/23 11:48:37 james
* *** empty log message ***
*
* Revision 1.2 2008/02/22 14:51:54 james
* *** empty log message ***
*
* Revision 1.1 2008/02/14 12:14:50 james
* *** empty log message ***
*
*/
#include "project.h"
typedef struct
{
LOG_SIGNATURE;
int do_close;
int rotate;
FILE *fp;
char *filename;
} File_Log;
static void
flog_log (Log * _l, char *buf)
{
File_Log *l = (File_Log *) _l;
struct timeval tv = { 0 };
struct tm *tm;
time_t t;
static const char *days[] = { "Sun", "Mon", "Tue",
"Wed", "Thu", "Fri", "Sat"
};
static const char *months[] = {
"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct",
"Nov", "Dec"
};
if (!l->fp)
return;
gettimeofday (&tv, NULL);
t = tv.tv_sec;
tm = localtime (&t);
fprintf (l->fp, "%s %2d %02d:%02d:%02d.%06d ", months[tm->tm_mon],
tm->tm_mday, tm->tm_hour, tm->tm_min, tm->tm_sec, tv.tv_usec);
fputs (buf, l->fp);
fputc ('\n', l->fp);
fflush (l->fp);
if (l->rotate && rotate_check (l->filename)) {
fclose (l->fp);
rotate (l->filename);
l->fp = fopen (l->filename, "a+");
}
}
static void
flog_close (Log * _l)
{
File_Log *l = (File_Log *) _l;
if (l->fp && l->do_close)
fclose (l->fp);
if (l->filename)
free (l->filename);
free (l);
}
Log *
file_log_new (char *fn, int rotate)
{
File_Log *l;
FILE *f;
int dc = 1;
if (fn && strcmp (fn, "-")) {
f = fopen (fn, "a+");
if (!f)
return NULL;
} else {
f = stderr;
dc = 0;
}
l = malloc (sizeof (File_Log));
l->log = flog_log;
l->close = flog_close;
l->fp = f;
l->do_close = dc;
l->rotate = rotate;
l->filename = strdup (fn);
fput_cp (f, 0xffef);
return (Log *) l;
}
void
log_f (Log * log, char *fmt, ...)
{
int n;
static char *buf;
va_list ap;
static int size;
if (!log)
return;
if (!size) {
size = 128;
buf = malloc (size);
}
if (!buf)
return;
while (1) {
va_start (ap, fmt);
n = vsnprintf (buf, size, fmt, ap);
va_end (ap);
if (n > -1 && n < size) {
log->log (log, buf);
return;
}
if (n > -1) /* glibc 2.1 */
size = n + 1;
else /* glibc 2.0 */
size *= 2; /* twice the old size */
buf = realloc (buf, size);
if (!buf)
return;
}
}
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