restartd-0.2.3/config.c0000644000175000017500000001011212074415613015303 0ustar evilynuxevilynux// restartd - Process checker and/or restarter daemon // Copyright (C) 2000-2002 Tibor Koleszar // Copyright (C) 2006 Aurélien GÉRÔME // // This program 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. // // This program 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 this program; if not, write to the Free Software // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. // // Tibor Koleszar // H-7400 Kaposvar, Somssich Pal str. 4. #include #include "config.h" int read_config(void) { FILE *config_fd; char *line1, *line2; int i, j, sep, lines; if (debug) { fprintf(stderr, "Config file: %s\n", config_file); } // This is a reload if (config_process_number) { for(i=0; i 0) { line2[j] = 32; j++; } } else { line2[j] = line1[i]; j++; } } line2[j] = 0; if (line2[0] != 35 && strlen(line2) > 0) { j = 0; i = 0; lines = 0; sep = 0; while(j < strlen(line2)) { if (line2[j] == 32 && sep != 1) { line1[i] = 0; if (debug) { fprintf(stderr, "%u: %s\n", lines, line1); } i = 0; sep = 0; if (lines == 0) { snprintf(config_process[config_process_number].name, 64, "%s", line1); } if (lines == 1) { snprintf(config_process[config_process_number]. regexp, 128, "%s", line1); } if (lines == 2) { snprintf(config_process[config_process_number]. not_running, 256, "%s", line1); } if (lines == 3) { snprintf(config_process[config_process_number]. running, 256, "%s", line1); } lines++; } if (line2[j] == 34) { sep++; } if ((line2[j] != 32 || sep == 1) && line2[j] != 34) { line1[i] = line2[j]; i++; } j++; } config_process_number++; } } fclose(config_fd); free(line1); free(line2); if (!config_process_number) { fprintf(stderr, "No processes defined in config file. Exiting.\n"); syslog(LOG_INFO, "No processes defined in config file. Exiting."); exit(0); } return 0; } restartd-0.2.3/config.h0000644000175000017500000000314212074415613015315 0ustar evilynuxevilynux// restartd - Process checker and/or restarter daemon // Copyright (C) 2000-2002 Tibor Koleszar // Copyright (C) 2006 Aurélien GÉRÔME // // This program 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. // // This program 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 this program; if not, write to the Free Software // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. // // Tibor Koleszar // H-7400 Kaposvar, Somssich Pal str. 4. #ifndef RESTARTD_CONFIG_H #define RESTARTD_CONFIG_H #include #include #include #include #include #include #include #include #define DEFAULT_CONFIG "/etc/restartd.conf" int debug; // Debug int config_process_number; int check_interval; int foreground; struct config_process_type *config_process; char *config_file; typedef struct config_process_type { char name[64]; char regexp[128]; char not_running[256]; char running[256]; char processes[256]; char status[32]; } config_process_type; int read_config(/* char *config_file */); #endif //RESTARTD_CONFIG_H restartd-0.2.3/COPYRIGHT0000644000175000017500000000163712074415613015201 0ustar evilynuxevilynux restartd - Process checker and/or restarter daemon Copyright (C) 2000-2002 Tibor Koleszar Copyright (C) 2006 Aurélien GÉRÔME This program 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. This program 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 this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. Tibor Koleszar H-7400 Kaposvar, Somssich Pal str. 4. restartd-0.2.3/LICENSE0000644000175000017500000003663612074415613014722 0ustar evilynuxevilynuxGNU GENERAL PUBLIC LICENSE Version 2, June 1991 Copyright (C) 1989, 1991 Free Software Foundation, Inc. 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. Preamble The licenses for most software are designed to take away your freedom to share and change it. By contrast, the GNU General Public License is intended to guarantee your freedom to share and change free software--to make sure the software is free for all its users. This General Public License applies to most of the Free Software Foundation's software and to any other program whose authors commit to using it. (Some other Free Software Foundation software is covered by the GNU Library General Public License instead.) You can apply it to your programs, too. When we speak of free software, we are referring to freedom, not price. Our General Public Licenses are designed to make sure that you have the freedom to distribute copies of free software (and charge for this service if you wish), that you receive source code or can get it if you want it, that you can change the software or use pieces of it in new free programs; and that you know you can do these things. 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If the software is modified by someone else and passed on, we want its recipients to know that what they have is not the original, so that any problems introduced by others will not reflect on the original authors' reputations. Finally, any free program is threatened constantly by software patents. We wish to avoid the danger that redistributors of a free program will individually obtain patent licenses, in effect making the program proprietary. To prevent this, we have made it clear that any patent must be licensed for everyone's free use or not licensed at all. The precise terms and conditions for copying, distribution and modification follow. TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION 0. This License applies to any program or other work which contains a notice placed by the copyright holder saying it may be distributed under the terms of this General Public License. The "Program", below, refers to any such program or work, and a "work based on the Program" means either the Program or any derivative work under copyright law: that is to say, a work containing the Program or a portion of it, either verbatim or with modifications and/or translated into another language. (Hereinafter, translation is included without limitation in the term "modification".) Each licensee is addressed as "you". Activities other than copying, distribution and modification are not covered by this License; they are outside its scope. The act of running the Program is not restricted, and the output from the Program is covered only if its contents constitute a work based on the Program (independent of having been made by running the Program). Whether that is true depends on what the Program does. 1. 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END OF TERMS AND CONDITIONS restartd-0.2.3/main.c0000644000175000017500000002265512074415613015001 0ustar evilynuxevilynux// restartd - Process checker and/or restarter daemon // Copyright (C) 2000-2002 Tibor Koleszar // Copyright (C) 2006 Aurélien GÉRÔME // // This program 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. // // This program 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 this program; if not, write to the Free Software // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. // // Tibor Koleszar // H-7400 Kaposvar, Somssich Pal str. 4. #include #include #include #include #include #include #include #include #include #include #include #include #include #include "config.h" // SIGTERM & SIGHUP handler void got_signal(int sig) { if (sig == SIGTERM) { syslog(LOG_INFO, "Got SIGTERM. Exiting."); unlink("/var/run/restartd.pid"); exit(0); } if (sig == SIGHUP) { syslog(LOG_INFO, "Got SIGHUP. Reloading config file."); read_config(); syslog(LOG_INFO, "Config file has been read. Found %d process to check.", config_process_number); } } int main(int argc, char *argv[]) { DIR *procdir_id; struct dirent *procdir_dirent; int proc_cmdline; char *proc_cmdline_str; ssize_t proc_cmdline_str_length; char *proc_cmdline_name; int i, f; FILE *out_proc; regex_t *regc; size_t r_nmatch = 0; regmatch_t r_match[256]; pid_t child; time_t now; debug = 0; check_interval = 20; foreground = 0; // Options config_file = strdup(DEFAULT_CONFIG); for(i = 0; i < argc; i++) { if (!strcmp(argv[i], "-c") || !strcmp(argv[i], "--config")) { config_file = strdup(argv[i + 1]); } if (!strcmp(argv[i], "-v") || !strcmp(argv[i], "--version")) { printf("restard %s - Copyright 2000-2002 Tibor Koleszar \n" " Copyright 2006 Aurélien GÉRÔME \n", VERSION); exit(0); } if (!strcmp(argv[i], "-d") || !strcmp(argv[i], "--debug")) { debug = 1; } if (!strcmp(argv[i], "-f") || !strcmp(argv[i], "--foreground")) { foreground = 1; } if (!strcmp(argv[i], "-i") || !strcmp(argv[i], "--interval")) { if (atoi(argv[i + 1]) > 0) { check_interval = atoi(argv[i + 1]); } else { fprintf(stderr, "Error at parameter -i: %s is not an interval number\n.", argv[i + 1]); exit (0); } } if (!strcmp(argv[i], "-h") || !strcmp(argv[i], "--help")) { printf("restartd %s - process restarter and checker daemon\n" "Copyright 2000-2002 Tibor Koleszar \n" "Copyright 2006 Aurélien GÉRÔME \n" "restartd is GPL'ed software.\n" "Parameters:\n" " -c : config file (default is /etc/restartd.conf)\n" " -d : set debug on (poor)\n" " -f : run in foreground\n" " -i : the check interval in second\n" " -h : help\n\n", VERSION); } } config_process = malloc(sizeof(struct config_process_type) * 128); read_config(); syslog(LOG_INFO, "Config file has been read. Found %d process to check.", config_process_number); procdir_dirent = malloc(sizeof(struct dirent)); proc_cmdline_str = (char *) malloc(1024); proc_cmdline_name = (char *) malloc(1024); regc = malloc(1024); // Catch signals signal(SIGTERM, got_signal); signal(SIGHUP, got_signal); // Fork if (foreground == 1 || !(child = fork())) { // generic daemon stuff from http://www.aarnet.edu.au/~gdt/articles/2003-09-nowhere-daemon/daemon.html // added by cwarden@postica.com - 041216 if (!foreground) { if (setsid() == (pid_t) (-1)) { fprintf(stderr, "setsid() failed\n"); syslog(LOG_ERR, "setsid() failed"); return -1; } } if ((chdir("/")) < 0) { syslog(LOG_ERR, "Cannot chdir to /"); return -1; } f = open("/dev/null", O_RDONLY); if (f == -1) { syslog(LOG_ERR, "Failed to open /dev/null"); return -1; } else { if (dup2(f, fileno(stdin)) == -1) { syslog(LOG_ERR, "Failed to set stdin to /dev/null"); return -1; } (void) close(f); } f = open("/dev/null", O_WRONLY); if (f == -1) { syslog(LOG_ERR, "Failed to open /dev/null"); return -1; } else { if (dup2(f, fileno(stdout)) == -1) { syslog(LOG_ERR, "Failed to set stdout to /dev/null"); return -1; } if (dup2(f, fileno(stderr)) == -1) { syslog(LOG_ERR, "Failed to set stderr to /dev/null"); return -1; } (void) close(f); } out_proc = fopen("/var/run/restartd.pid", "wt"); fprintf(out_proc, "%d", getpid()); fclose(out_proc); while(1) { if ((procdir_id = opendir("/proc")) == NULL) { syslog(LOG_ERR, "Cannot open /proc dir"); return -1; } for(i = 0; i < config_process_number; i++) { config_process[i].processes[0] = 0; } while((procdir_dirent = readdir(procdir_id)) != NULL) { if (atoi(procdir_dirent->d_name) > 0) { sprintf(proc_cmdline_name, "/proc/%s/cmdline", procdir_dirent->d_name); proc_cmdline = open(proc_cmdline_name, O_RDONLY); proc_cmdline_str_length = read(proc_cmdline, proc_cmdline_str, 1024); for(i = 0; i < proc_cmdline_str_length; i++) { if (!proc_cmdline_str[i]) { proc_cmdline_str[i] = 32; } } proc_cmdline_str[proc_cmdline_str_length] = 0; // Check process for(i=0; id_name); } regfree(regc); } close(proc_cmdline); } } closedir(procdir_id); now = time(NULL); out_proc = fopen("/var/run/restartd", "wt"); fprintf(out_proc, "%s\n", ctime(&now)); for(i=0; i 0) { if (strlen(config_process[i].running) > 0) { strcpy(config_process[i].status, "running"); syslog(LOG_INFO, "%s is running, executing '%s'", config_process[i].name, config_process[i].running); system(config_process[i].running); } else { strcpy(config_process[i].status, "running"); } } if (strlen(config_process[i].processes) == 0 && strlen(config_process[i].not_running) > 0) { strcpy(config_process[i].status, "restarting"); syslog(LOG_ERR, "%s is NOT running, executing '%s'", config_process[i].name, config_process[i].not_running); system(config_process[i].not_running); } if (strlen(config_process[i].processes) == 0 && strlen(config_process[i].not_running) == 0) { strcpy(config_process[i].status, "not running"); } fprintf(out_proc, "%-12s %-12s %s\n", config_process[i].name, config_process[i].status, config_process[i].processes); } fclose(out_proc); sleep(check_interval); } } free(procdir_dirent); free(proc_cmdline_str); free(proc_cmdline_name); free(config_process); free(regc); return 0; } restartd-0.2.3/Makefile0000644000175000017500000000127212074415613015341 0ustar evilynuxevilynux# Restartd Makefile C_ARGS = -Wall -O2 CC = gcc INS = /usr/bin/install VERSION = $(shell cat version) all: restartd install: restartd $(INS) -o root -g root -m 0640 restartd.conf $(DESTDIR)/etc $(INS) -o root -g root -m 0754 -b restartd $(DESTDIR)/usr/sbin $(INS) -o root -g root -m 0444 restartd.8 $(DESTDIR)/usr/share/man/man8 $(INS) -o root -g root -m 0444 restartd.fr.8 $(DESTDIR)/usr/share/man/fr/man8/restartd.8 clean: rm -f *.o restartd restartd: main.o config.o $(CC) -o restartd -DVERSION='"$(VERSION)"' main.o config.o # strip restartd main.o: main.c $(CC) $(C_ARGS) -DVERSION='"$(VERSION)"' -c main.c config.o: config.c $(CC) $(C_ARGS) -DVERSION='"$(VERSION)"' -c config.c restartd-0.2.3/restartd.80000644000175000017500000000216112074415613015620 0ustar evilynuxevilynux.TH RESTARTD 8 "14 Sep 2006" "" "" .SH NAME restartd \- process checker and/or reloader .SH DESCRIPTION Restartd is a daemon for checking running and not running processes. It reads the /proc directory every n seconds and does a POSIX regexp on the process names. You can execute a script or a program if the process is or is not running. For executing, restard uses system(3). For logging, restartd using syslog with LOG_INFO and LOG_ERR facilities. .SH OPTIONS restartd follows the GNU command line syntax. .TP .B -h, --help Displays a little help. .TP .B -v, --version Show the version number and quit. .TP .B -d, --debug Add very limited debugging. .TP .B -i --interval The process check interval in seconds. The default is 20. .TP .B -c --config Use a different configuration file instead of /etc/restartd.conf. .TP .B -f --foreground Run restartd in foreground without detaching from the controlling terminal. .SH AUTHOR This manual page was written by Tibor Koleszar and updated by Aur\['e]lien G\['E]R\[^O]ME for the Debian GNU/Linux system. Last modify: Thu, 14 Sep 2006 22:42:57 +0200 restartd-0.2.3/restartd.conf0000644000175000017500000000124212074415613016375 0ustar evilynuxevilynux# Restartd configuration file # Format: # # # # process_name: the name of the process which is just for logging # as it does not affect for the regexp # # regexp: the POSIX regular expression for the command line of the # process # # action_if_not_running: a script or program name to execute if the # regexp does not match the full process command line # # action_if_running: a script or program name to execute if the regexp # matches the full process command line # Example: # # restartd ".*restartd" "/bin/echo 'It is not running!' >/tmp/restartd.out" "/bin/echo 'It is running!' >/tmp/restartd.out" restartd-0.2.3/restartd.fr.80000644000175000017500000000253312074415613016231 0ustar evilynuxevilynux.TH RESTARTD 8 "14 Sep 2006" "" "" .SH NAME restartd \- moniteur et red\['e]marreur de processus .SH DESCRIPTION Restartd est un d\['e]mon qui v\['e]rifie si des processus s'ex\['e]cutent ou pas. Il lit le r\['e]pertoire /proc toutes les n secondes et effectue une expression rationnelle POSIX sur les noms de processus. Vous pouvez ex\['e]cuter un script ou un programme si le processus s'ex\['e]cute ou pas. Pour l'ex\['e]cution, restard utilise system(3). Pour la journalisation, restartd utilise syslog avec les types de traitement LOG_INFO et LOG_ERR. .SH OPTIONS restartd suit la syntaxe des lignes de commandes GNU. .TP .B -h, --help Affiche un peu d'aide. .TP .B -v, --version Montre le num\['e]ro de version et quitte. .TP .B -d, --debug Ajoute des informations de d\['e]bogage très limit\['e]es. .TP .B -i --interval L'intervalle de v\['e]rification des processus en secondes. Le d\['e]faut est de 20. .TP .B -c --config Utilise un fichier de configuration autre que /etc/restartd.conf. .TP .B -f --foreground Ex\['e]cute restartd en avant-plant sans le d\['e]tacher du terminal de contr\[^o]le. .SH AUTHOR Cette page de manuel a \['e]t\['e] \['e]crite par Tibor Koleszar et mise à jour par Aur\['e]lien G\['E]R\[^O]ME pour le syst\[`e]me Debian GNU/Linux. Derni\[`e]re modification : Thu, 14 Sep 2006 22:42:57 +0200 restartd-0.2.3/version0000644000175000017500000000000612074415613015303 0ustar evilynuxevilynux0.2.3