diff options
Diffstat (limited to 'src/dpid.c')
-rw-r--r-- | src/dpid.c | 161 |
1 files changed, 0 insertions, 161 deletions
diff --git a/src/dpid.c b/src/dpid.c deleted file mode 100644 index e41e37c..0000000 --- a/src/dpid.c +++ /dev/null @@ -1,161 +0,0 @@ -/* $Id$ */ - -/* - * This file is part of libdaemon. - * - * libdaemon is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * libdaemon is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with libdaemon; if not, write to the Free Software Foundation, - * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. - */ - -#ifdef HAVE_CONFIG_H -#include <config.h> -#endif - -#include <limits.h> -#include <stdio.h> -#include <stdlib.h> -#include <signal.h> -#include <string.h> -#include <unistd.h> -#include <errno.h> -#include <sys/types.h> -#include <sys/stat.h> -#include <time.h> - -#include "dpid.h" -#include "dlog.h" - -#define VARRUN "/var/run" - -const char *daemon_pid_file_ident = 0; -daemon_pid_file_proc_t daemon_pid_file_proc = daemon_pid_file_proc_default; - -const char *daemon_pid_file_proc_default(void) { - static char fn[PATH_MAX]; - snprintf(fn, sizeof(fn), "%s/%s.pid", VARRUN, daemon_pid_file_ident ? daemon_pid_file_ident : "unknown"); - return fn; -} - -pid_t daemon_pid_file_is_running(void) { - const char *fn; - static char txt[256]; - FILE *f; - pid_t pid; - - - if (!(fn = daemon_pid_file_proc())) - return (pid_t) -1; - - if (!(f = fopen(fn, "r"))) - return (pid_t) -1; - - if (!(fgets(txt, sizeof(txt), f))) { - daemon_log(LOG_WARNING, "PID file corrupt, removing. (%s)", fn); - unlink(fn); - fclose(f); - return (pid_t) -1; - } - - fclose(f); - - if ((pid = (pid_t) atoi(txt)) <= 0) { - daemon_log(LOG_WARNING, "PID file corrupt, removing. (%s)", fn); - unlink(fn); - return (pid_t) -1; - } - - if (kill(pid, 0) != 0 && errno != EPERM) { - daemon_log(LOG_WARNING, "Daemon %u killed: %s; removing PID file. (%s)", pid, strerror(errno), fn); - unlink(fn); - return (pid_t) -1; - } - - return pid; -} - -int daemon_pid_file_kill(int s) { - pid_t pid; - - if ((pid = daemon_pid_file_is_running()) < 0) - return -1; - - if (kill(pid, s) < 0) - return -1; - - return 0; -} - -int daemon_pid_file_kill_wait(int s, int m) { - pid_t pid; - time_t t; - - if ((pid = daemon_pid_file_is_running()) < 0) - return -1; - - if (kill(pid, s) < 0) - return -1; - - t = time(NULL) + m; - - for (;;) { - int r; - struct timeval tv = { 0, 100000 }; - - if (time(NULL) > t) - return -1; - - if ((r = kill(pid, 0)) < 0 && errno != ESRCH) - return -1; - - if (r) - return 0; - - if (select(0, NULL, NULL, NULL, &tv) < 0) - return -1; - } -} - -int daemon_pid_file_create(void) { - const char *fn; - FILE *f; - mode_t save; - - if (!(fn = daemon_pid_file_proc())) - return -1; - - save = umask(022); - - if (!(f = fopen(fn, "w"))) - return -1; - - fprintf(f, "%u\n", getpid()); - fclose(f); - - umask(save); - - return 0; -} - -int daemon_pid_file_remove(void) { - const char *fn; - - if (!(fn = daemon_pid_file_proc())) - return -1; - - if (unlink(fn) < 0) - return -1; - - return 0; -} - |