172445Sassar/* 2233294Sstas * Copyright (c) 1999 - 2001 Kungliga Tekniska H��gskolan 3233294Sstas * (Royal Institute of Technology, Stockholm, Sweden). 4233294Sstas * All rights reserved. 572445Sassar * 6233294Sstas * Redistribution and use in source and binary forms, with or without 7233294Sstas * modification, are permitted provided that the following conditions 8233294Sstas * are met: 972445Sassar * 10233294Sstas * 1. Redistributions of source code must retain the above copyright 11233294Sstas * notice, this list of conditions and the following disclaimer. 1272445Sassar * 13233294Sstas * 2. Redistributions in binary form must reproduce the above copyright 14233294Sstas * notice, this list of conditions and the following disclaimer in the 15233294Sstas * documentation and/or other materials provided with the distribution. 1672445Sassar * 17233294Sstas * 3. Neither the name of the Institute nor the names of its contributors 18233294Sstas * may be used to endorse or promote products derived from this software 19233294Sstas * without specific prior written permission. 2072445Sassar * 21233294Sstas * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 22233294Sstas * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23233294Sstas * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24233294Sstas * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 25233294Sstas * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26233294Sstas * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27233294Sstas * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28233294Sstas * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29233294Sstas * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30233294Sstas * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31233294Sstas * SUCH DAMAGE. 3272445Sassar */ 3372445Sassar 3472445Sassar#include <config.h> 3572445Sassar 36178825Sdfr#include "roken.h" 3772445Sassar 38233294SstasROKEN_LIB_FUNCTION char * ROKEN_LIB_CALL 3972445Sassarpid_file_write (const char *progname) 4072445Sassar{ 41233294Sstas char *ret = NULL; 4272445Sassar FILE *fp; 4372445Sassar 44233294Sstas if (asprintf (&ret, "%s%s.pid", _PATH_VARRUN, progname) < 0 || ret == NULL) 4572445Sassar return NULL; 4672445Sassar fp = fopen (ret, "w"); 4772445Sassar if (fp == NULL) { 4872445Sassar free (ret); 4972445Sassar return NULL; 5072445Sassar } 5172445Sassar fprintf (fp, "%u", (unsigned)getpid()); 5272445Sassar fclose (fp); 5372445Sassar return ret; 5472445Sassar} 5572445Sassar 56233294SstasROKEN_LIB_FUNCTION void ROKEN_LIB_CALL 5772445Sassarpid_file_delete (char **filename) 5872445Sassar{ 5972445Sassar if (*filename != NULL) { 6072445Sassar unlink (*filename); 6172445Sassar free (*filename); 6272445Sassar *filename = NULL; 6372445Sassar } 6472445Sassar} 6572445Sassar 6672445Sassar#ifndef HAVE_PIDFILE 6772445Sassarstatic char *pidfile_path; 6872445Sassar 6972445Sassarstatic void 7072445Sassarpidfile_cleanup(void) 7172445Sassar{ 7272445Sassar if(pidfile_path != NULL) 7372445Sassar pid_file_delete(&pidfile_path); 7472445Sassar} 7572445Sassar 76233294SstasROKEN_LIB_FUNCTION void ROKEN_LIB_CALL 7772445Sassarpidfile(const char *basename) 7872445Sassar{ 7972445Sassar if(pidfile_path != NULL) 8072445Sassar return; 8172445Sassar if(basename == NULL) 8278527Sassar basename = getprogname(); 8372445Sassar pidfile_path = pid_file_write(basename); 8490926Snectar#if defined(HAVE_ATEXIT) 8572445Sassar atexit(pidfile_cleanup); 8690926Snectar#elif defined(HAVE_ON_EXIT) 8790926Snectar on_exit(pidfile_cleanup); 8890926Snectar#endif 8972445Sassar} 9072445Sassar#endif 91