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Import tmux, a terminal multiplexor allowing (among other things) a single

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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
This commit is contained in:
Nicholas Marriott
2009-06-01 22:58:49 +00:00
commit 35876eaab9
127 changed files with 28294 additions and 0 deletions
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/* $OpenBSD$ */
/*
* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
*
* 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 <syslog.h>
#include <time.h>
#include "tmux.h"
/* Logging type. */
#define LOG_TYPE_OFF 0
#define LOG_TYPE_SYSLOG 1
#define LOG_TYPE_TTY 2
#define LOG_TYPE_FILE 3
int log_type = LOG_TYPE_OFF;
/* Log file, if needed. */
FILE *log_file;
/* Debug level. */
int log_level;
/* Open logging to syslog. */
void
log_open_syslog(int level)
{
log_type = LOG_TYPE_SYSLOG;
log_level = level;
openlog(__progname, LOG_PID|LOG_NDELAY, LOG_FACILITY);
tzset();
}
/* Open logging to tty. */
void
log_open_tty(int level)
{
log_type = LOG_TYPE_TTY;
log_level = level;
setlinebuf(stderr);
setlinebuf(stdout);
tzset();
}
/* Open logging to file. */
void
log_open_file(int level, const char *path)
{
log_file = fopen(path, "w");
if (log_file == NULL)
return;
log_type = LOG_TYPE_FILE;
log_level = level;
setlinebuf(log_file);
tzset();
}
/* Close logging. */
void
log_close(void)
{
if (log_type == LOG_TYPE_FILE)
fclose(log_file);
log_type = LOG_TYPE_OFF;
}
/* Write a log message. */
void
log_write(int pri, const char *msg, ...)
{
va_list ap;
va_start(ap, msg);
log_vwrite(pri, msg, ap);
va_end(ap);
}
/* Write a log message. */
void
log_vwrite(int pri, const char *msg, va_list ap)
{
char *fmt;
FILE *f = log_file;
switch (log_type) {
case LOG_TYPE_SYSLOG:
vsyslog(pri, msg, ap);
break;
case LOG_TYPE_TTY:
if (pri == LOG_INFO)
f = stdout;
else
f = stderr;
/* FALLTHROUGH */
case LOG_TYPE_FILE:
if (asprintf(&fmt, "%s\n", msg) == -1)
exit(1);
if (vfprintf(f, fmt, ap) == -1)
exit(1);
fflush(f);
free(fmt);
break;
}
}
/* Log a warning with error string. */
void printflike1
log_warn(const char *msg, ...)
{
va_list ap;
char *fmt;
va_start(ap, msg);
if (asprintf(&fmt, "%s: %s", msg, strerror(errno)) == -1)
exit(1);
log_vwrite(LOG_CRIT, fmt, ap);
free(fmt);
va_end(ap);
}
/* Log a warning. */
void printflike1
log_warnx(const char *msg, ...)
{
va_list ap;
va_start(ap, msg);
log_vwrite(LOG_CRIT, msg, ap);
va_end(ap);
}
/* Log an informational message. */
void printflike1
log_info(const char *msg, ...)
{
va_list ap;
if (log_level > -1) {
va_start(ap, msg);
log_vwrite(LOG_INFO, msg, ap);
va_end(ap);
}
}
/* Log a debug message. */
void printflike1
log_debug(const char *msg, ...)
{
va_list ap;
if (log_level > 0) {
va_start(ap, msg);
log_vwrite(LOG_DEBUG, msg, ap);
va_end(ap);
}
}
/* Log a debug message at level 2. */
void printflike1
log_debug2(const char *msg, ...)
{
va_list ap;
if (log_level > 1) {
va_start(ap, msg);
log_vwrite(LOG_DEBUG, msg, ap);
va_end(ap);
}
}
/* Log a debug message at level 3. */
void printflike1
log_debug3(const char *msg, ...)
{
va_list ap;
if (log_level > 2) {
va_start(ap, msg);
log_vwrite(LOG_DEBUG, msg, ap);
va_end(ap);
}
}
/* Log a critical error, with error string if necessary, and die. */
__dead void
log_vfatal(const char *msg, va_list ap)
{
char *fmt;
if (errno != 0) {
if (asprintf(&fmt, "fatal: %s: %s", msg, strerror(errno)) == -1)
exit(1);
log_vwrite(LOG_CRIT, fmt, ap);
} else {
if (asprintf(&fmt, "fatal: %s", msg) == -1)
exit(1);
log_vwrite(LOG_CRIT, fmt, ap);
}
free(fmt);
exit(1);
}
/* Log a critical error, with error string, and die. */
__dead void printflike1
log_fatal(const char *msg, ...)
{
va_list ap;
va_start(ap, msg);
log_vfatal(msg, ap);
}
/* Log a critical error and die. */
__dead void printflike1
log_fatalx(const char *msg, ...)
{
va_list ap;
errno = 0;
va_start(ap, msg);
log_vfatal(msg, ap);
}