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https://github.com/samba-team/samba.git
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e0567433bd
Changes to get Samba to compile cleanly with the IRIX compiler with the options : -fullwarn -woff 1209,1174 (the -woff options are to turn off warnings about unused function parameters and controlling loop expressions being constants). Split prototype generation as we hit a limit in IRIX nawk. Removed "." code in smbd/filename.c (yet again :-). Jeremy.
96 lines
2.4 KiB
C
96 lines
2.4 KiB
C
/*
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Unix SMB/Netbios implementation.
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Version 1.9.
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pidfile handling
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Copyright (C) Andrew Tridgell 1998
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "includes.h"
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extern int DEBUGLEVEL;
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#ifndef O_NONBLOCK
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#define O_NONBLOCK
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#endif
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/* return the pid in a pidfile. return 0 if the process (or pidfile)
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does not exist */
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pid_t pidfile_pid(char *name)
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{
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FILE *f;
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unsigned ret;
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pstring pidFile;
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slprintf(pidFile, sizeof(pidFile)-1, "%s/%s.pid", lp_lockdir(), name);
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f = fopen(pidFile, "r");
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if (!f) {
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return 0;
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}
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if (fscanf(f,"%u", &ret) != 1) {
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fclose(f);
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return 0;
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}
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fclose(f);
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if (!process_exists(ret)) return 0;
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return (pid_t)ret;
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}
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/* create a pid file in the lock directory. open it and leave it locked */
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void pidfile_create(char *name)
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{
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int fd;
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char buf[20];
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pstring pidFile;
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int pid;
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slprintf(pidFile, sizeof(pidFile)-1, "%s/%s.pid", lp_lockdir(), name);
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pid = pidfile_pid(name);
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if (pid > 0 && process_exists(pid)) {
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DEBUG(0,("ERROR: %s is already running. File %s exists and process id %d is running.\n",
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name, pidFile, pid));
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exit(1);
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}
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fd = open(pidFile, O_NONBLOCK | O_CREAT | O_WRONLY, 0644);
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if (fd < 0) {
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DEBUG(0,("ERROR: can't open %s: Error was %s\n", pidFile,
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strerror(errno)));
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exit(1);
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}
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if (fcntl_lock(fd,SMB_F_SETLK,0,1,F_WRLCK)==False) {
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DEBUG(0,("ERROR: %s : fcntl lock of file %s failed. Error was %s\n",
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name, pidFile, strerror(errno)));
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exit(1);
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}
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memset(buf, 0, sizeof(buf));
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slprintf(buf, sizeof(buf) - 1, "%u\n", (unsigned int) getpid());
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if (write(fd, buf, sizeof(buf)) != sizeof(buf)) {
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DEBUG(0,("ERROR: can't write to file %s: %s\n",
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pidFile, strerror(errno)));
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exit(1);
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}
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/* Leave pid file open & locked for the duration... */
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}
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