mirror of
https://github.com/tmate-io/tmate-ssh-server.git
synced 2024-10-18 08:56:02 +00:00
146 lines
2.8 KiB
C
146 lines
2.8 KiB
C
/* $Id$ */
|
|
|
|
/*
|
|
* Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
|
|
*
|
|
* Permission to use, copy, modify, and distribute this software for any
|
|
* purpose with or without fee is hereby granted, provided that the above
|
|
* copyright notice and this permission notice appear in all copies.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
|
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
|
|
* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
|
|
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
*/
|
|
|
|
#include <sys/types.h>
|
|
|
|
#include <errno.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <time.h>
|
|
#include <unistd.h>
|
|
|
|
#include "tmux.h"
|
|
#include "tmate.h"
|
|
|
|
FILE *log_file;
|
|
|
|
static void log_event_cb(int, const char *);
|
|
static void log_vwrite(const char *, va_list);
|
|
|
|
static int log_level;
|
|
char *log_prefix;
|
|
|
|
static void
|
|
log_event_cb(__unused int severity, const char *msg)
|
|
{
|
|
log_debug("%s", msg);
|
|
}
|
|
|
|
/* Increment log level. */
|
|
void
|
|
log_add_level(void)
|
|
{
|
|
log_level++;
|
|
}
|
|
|
|
/* Get log level. */
|
|
int
|
|
log_get_level(void)
|
|
{
|
|
return log_level;
|
|
}
|
|
|
|
void init_logging(int _log_level)
|
|
{
|
|
log_level = _log_level;
|
|
log_prefix = xstrdup("");
|
|
|
|
log_file = fdopen(dup(STDERR_FILENO), "a");
|
|
if (!log_file)
|
|
exit(1);
|
|
|
|
event_set_log_callback(log_event_cb);
|
|
}
|
|
|
|
void set_log_prefix(char *_log_prefix)
|
|
{
|
|
free(log_prefix);
|
|
log_prefix = xstrdup(_log_prefix);
|
|
}
|
|
|
|
/* Write a log message. */
|
|
__attribute__((__format__(__printf__, 1, 0)))
|
|
static void
|
|
log_vwrite(const char *msg, va_list ap)
|
|
{
|
|
char *fmt, *out;
|
|
struct timeval tv;
|
|
|
|
if (log_file == NULL)
|
|
return;
|
|
|
|
if (vasprintf(&fmt, msg, ap) == -1)
|
|
exit(1);
|
|
if (stravis(&out, fmt, VIS_OCTAL|VIS_CSTYLE|VIS_TAB|VIS_NL) == -1)
|
|
exit(1);
|
|
|
|
if (fprintf(log_file, "%s%s\n", log_prefix, out) == -1)
|
|
exit(1);
|
|
|
|
fflush(log_file);
|
|
|
|
free(out);
|
|
free(fmt);
|
|
}
|
|
|
|
void
|
|
log_emit(int level, const char *msg, ...)
|
|
{
|
|
va_list ap;
|
|
|
|
if (log_level < level)
|
|
return;
|
|
|
|
va_start(ap, msg);
|
|
log_vwrite(msg, ap);
|
|
va_end(ap);
|
|
}
|
|
|
|
/* Log a critical error with error string and die. */
|
|
__attribute__((__format__(__printf__, 1, 0)))
|
|
__dead void
|
|
fatal(const char *msg, ...)
|
|
{
|
|
char *fmt;
|
|
va_list ap;
|
|
|
|
va_start(ap, msg);
|
|
if (asprintf(&fmt, "fatal: %s: %s", msg, strerror(errno)) == -1)
|
|
exit(1);
|
|
msg = fmt;
|
|
log_vwrite(msg, ap);
|
|
exit(1);
|
|
}
|
|
|
|
/* Log a critical error and die. */
|
|
__attribute__((__format__(__printf__, 1, 0)))
|
|
__dead void
|
|
fatalx(const char *msg, ...)
|
|
{
|
|
char *fmt;
|
|
va_list ap;
|
|
|
|
va_start(ap, msg);
|
|
if (asprintf(&fmt, "fatal: %s", msg) == -1)
|
|
exit(1);
|
|
msg = fmt;
|
|
log_vwrite(msg, ap);
|
|
exit(1);
|
|
}
|