tmux/tmux.c

197 lines
4.6 KiB
C
Raw Normal View History

2007-09-27 10:09:37 +00:00
/* $Id: tmux.c,v 1.15 2007-09-27 10:09:37 nicm Exp $ */
/*
* 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 <sys/wait.h>
#include <paths.h>
#include <signal.h>
#include <stdlib.h>
#include <string.h>
#include <syslog.h>
#include <unistd.h>
#include "tmux.h"
#ifdef DEBUG
const char *malloc_options = "AFGJPX";
#endif
volatile sig_atomic_t sigwinch;
volatile sig_atomic_t sigterm;
int debug_level;
void sighandler(int);
struct op {
const char *cmd;
const char *alias;
int (*fn)(char *, int, char **);
};
struct op op_table[] = {
{ "attach", NULL, op_attach },
2007-09-27 10:09:37 +00:00
{ "list-sessions", "ls", op_list_sessions },
{ "list-windows", "lsw", op_list_windows },
{ "new-session", "new", op_new/*_session*/ },
2007-09-27 10:09:37 +00:00
// { "new-window", "neww", op_new_window },
// { "rename-window", "rw", op_rename_window },
// { "rename-session", "rs", op_rename_session },
};
#define NOP (sizeof op_table / sizeof op_table[0])
2007-08-27 13:45:26 +00:00
int
usage(const char *s)
{
if (s == NULL)
2007-09-26 14:08:16 +00:00
s = "command [flags]";
2007-09-26 19:38:42 +00:00
fprintf(stderr, "usage: %s [-v] [-S path] %s\n", __progname, s);
return (1);
}
2007-08-27 13:45:26 +00:00
void
logfile(const char *name)
{
FILE *f;
char *path;
log_close();
if (debug_level > 0) {
xasprintf(
&path, "%s-%s-%ld.log", __progname, name, (long) getpid());
f = fopen(path, "w");
log_open(f, LOG_DAEMON, debug_level);
xfree(path);
}
}
void
sighandler(int sig)
{
switch (sig) {
case SIGWINCH:
sigwinch = 1;
break;
case SIGTERM:
sigterm = 1;
break;
case SIGCHLD:
waitpid(WAIT_ANY, NULL, WNOHANG);
break;
}
}
void
siginit(void)
{
struct sigaction act;
2007-09-20 09:43:33 +00:00
memset(&act, 0, sizeof act);
sigemptyset(&act.sa_mask);
act.sa_flags = SA_RESTART;
act.sa_handler = SIG_IGN;
if (sigaction(SIGPIPE, &act, NULL) != 0)
fatal("sigaction failed");
if (sigaction(SIGUSR1, &act, NULL) != 0)
fatal("sigaction failed");
if (sigaction(SIGUSR2, &act, NULL) != 0)
fatal("sigaction failed");
if (sigaction(SIGINT, &act, NULL) != 0)
fatal("sigaction failed");
if (sigaction(SIGTSTP, &act, NULL) != 0)
fatal("sigaction failed");
if (sigaction(SIGQUIT, &act, NULL) != 0)
fatal("sigaction failed");
act.sa_handler = sighandler;
if (sigaction(SIGWINCH, &act, NULL) != 0)
fatal("sigaction failed");
if (sigaction(SIGTERM, &act, NULL) != 0)
fatal("sigaction failed");
if (sigaction(SIGCHLD, &act, NULL) != 0)
fatal("sigaction failed");
}
2007-08-27 13:45:26 +00:00
void
sigreset(void)
2007-08-27 13:45:26 +00:00
{
struct sigaction act;
memset(&act, 0, sizeof act);
sigemptyset(&act.sa_mask);
act.sa_handler = SIG_DFL;
if (sigaction(SIGPIPE, &act, NULL) != 0)
fatal("sigaction failed");
if (sigaction(SIGUSR1, &act, NULL) != 0)
fatal("sigaction failed");
if (sigaction(SIGUSR2, &act, NULL) != 0)
fatal("sigaction failed");
if (sigaction(SIGINT, &act, NULL) != 0)
fatal("sigaction failed");
if (sigaction(SIGTSTP, &act, NULL) != 0)
fatal("sigaction failed");
if (sigaction(SIGQUIT, &act, NULL) != 0)
fatal("sigaction failed");
if (sigaction(SIGWINCH, &act, NULL) != 0)
fatal("sigaction failed");
if (sigaction(SIGTERM, &act, NULL) != 0)
fatal("sigaction failed");
if (sigaction(SIGCHLD, &act, NULL) != 0)
fatal("sigaction failed");
}
int
main(int argc, char **argv)
{
struct op *op;
char *path;
int opt;
u_int i;
2007-08-27 13:45:26 +00:00
path = NULL;
2007-09-26 19:38:42 +00:00
while ((opt = getopt(argc, argv, "S:v?")) != EOF) {
switch (opt) {
2007-09-26 19:38:42 +00:00
case 'S':
path = xstrdup(optarg);
break;
case 'v':
debug_level++;
break;
case '?':
default:
exit(usage(NULL));
}
}
argc -= optind;
argv += optind;
if (argc == 0)
exit(usage(NULL));
log_open(stderr, LOG_USER, debug_level);
for (i = 0; i < NOP; i++) {
op = op_table + i;
if (strncmp(argv[0], op->cmd, strlen(op->cmd)) == 0 ||
(op->alias != NULL && strcmp(argv[0], op->alias) == 0))
exit(op->fn(path, argc, argv));
}
exit(usage(NULL));
}