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35876eaab9
terminal to be switched between several different windows and programs displayed on one terminal be detached from one terminal and moved to another. ok deraadt pirofti
251 lines
4.4 KiB
C
251 lines
4.4 KiB
C
/* $OpenBSD$ */
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/*
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* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
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* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
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* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <sys/types.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <syslog.h>
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#include <time.h>
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#include "tmux.h"
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/* Logging type. */
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#define LOG_TYPE_OFF 0
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#define LOG_TYPE_SYSLOG 1
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#define LOG_TYPE_TTY 2
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#define LOG_TYPE_FILE 3
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int log_type = LOG_TYPE_OFF;
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/* Log file, if needed. */
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FILE *log_file;
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/* Debug level. */
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int log_level;
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/* Open logging to syslog. */
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void
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log_open_syslog(int level)
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{
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log_type = LOG_TYPE_SYSLOG;
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log_level = level;
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openlog(__progname, LOG_PID|LOG_NDELAY, LOG_FACILITY);
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tzset();
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}
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/* Open logging to tty. */
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void
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log_open_tty(int level)
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{
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log_type = LOG_TYPE_TTY;
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log_level = level;
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setlinebuf(stderr);
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setlinebuf(stdout);
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tzset();
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}
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/* Open logging to file. */
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void
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log_open_file(int level, const char *path)
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{
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log_file = fopen(path, "w");
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if (log_file == NULL)
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return;
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log_type = LOG_TYPE_FILE;
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log_level = level;
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setlinebuf(log_file);
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tzset();
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}
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/* Close logging. */
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void
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log_close(void)
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{
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if (log_type == LOG_TYPE_FILE)
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fclose(log_file);
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log_type = LOG_TYPE_OFF;
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}
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/* Write a log message. */
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void
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log_write(int pri, const char *msg, ...)
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{
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va_list ap;
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va_start(ap, msg);
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log_vwrite(pri, msg, ap);
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va_end(ap);
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}
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/* Write a log message. */
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void
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log_vwrite(int pri, const char *msg, va_list ap)
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{
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char *fmt;
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FILE *f = log_file;
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switch (log_type) {
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case LOG_TYPE_SYSLOG:
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vsyslog(pri, msg, ap);
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break;
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case LOG_TYPE_TTY:
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if (pri == LOG_INFO)
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f = stdout;
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else
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f = stderr;
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/* FALLTHROUGH */
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case LOG_TYPE_FILE:
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if (asprintf(&fmt, "%s\n", msg) == -1)
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exit(1);
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if (vfprintf(f, fmt, ap) == -1)
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exit(1);
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fflush(f);
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free(fmt);
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break;
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}
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}
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/* Log a warning with error string. */
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void printflike1
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log_warn(const char *msg, ...)
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{
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va_list ap;
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char *fmt;
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va_start(ap, msg);
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if (asprintf(&fmt, "%s: %s", msg, strerror(errno)) == -1)
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exit(1);
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log_vwrite(LOG_CRIT, fmt, ap);
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free(fmt);
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va_end(ap);
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}
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/* Log a warning. */
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void printflike1
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log_warnx(const char *msg, ...)
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{
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va_list ap;
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va_start(ap, msg);
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log_vwrite(LOG_CRIT, msg, ap);
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va_end(ap);
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}
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/* Log an informational message. */
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void printflike1
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log_info(const char *msg, ...)
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{
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va_list ap;
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if (log_level > -1) {
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va_start(ap, msg);
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log_vwrite(LOG_INFO, msg, ap);
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va_end(ap);
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}
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}
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/* Log a debug message. */
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void printflike1
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log_debug(const char *msg, ...)
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{
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va_list ap;
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if (log_level > 0) {
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va_start(ap, msg);
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log_vwrite(LOG_DEBUG, msg, ap);
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va_end(ap);
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}
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}
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/* Log a debug message at level 2. */
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void printflike1
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log_debug2(const char *msg, ...)
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{
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va_list ap;
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if (log_level > 1) {
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va_start(ap, msg);
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log_vwrite(LOG_DEBUG, msg, ap);
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va_end(ap);
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}
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}
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/* Log a debug message at level 3. */
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void printflike1
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log_debug3(const char *msg, ...)
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{
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va_list ap;
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if (log_level > 2) {
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va_start(ap, msg);
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log_vwrite(LOG_DEBUG, msg, ap);
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va_end(ap);
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}
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}
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/* Log a critical error, with error string if necessary, and die. */
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__dead void
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log_vfatal(const char *msg, va_list ap)
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{
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char *fmt;
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if (errno != 0) {
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if (asprintf(&fmt, "fatal: %s: %s", msg, strerror(errno)) == -1)
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exit(1);
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log_vwrite(LOG_CRIT, fmt, ap);
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} else {
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if (asprintf(&fmt, "fatal: %s", msg) == -1)
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exit(1);
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log_vwrite(LOG_CRIT, fmt, ap);
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}
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free(fmt);
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exit(1);
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}
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/* Log a critical error, with error string, and die. */
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__dead void printflike1
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log_fatal(const char *msg, ...)
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{
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va_list ap;
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va_start(ap, msg);
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log_vfatal(msg, ap);
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}
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/* Log a critical error and die. */
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__dead void printflike1
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log_fatalx(const char *msg, ...)
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{
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va_list ap;
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errno = 0;
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va_start(ap, msg);
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log_vfatal(msg, ap);
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}
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