--- embedtools/src/pceng.c 2011/07/22 13:29:29 1.1.2.1 +++ embedtools/src/pceng.c 2011/07/22 14:20:24 1.1.2.3 @@ -3,7 +3,7 @@ * by Michael Pounov * * $Author: misho $ - * $Id: pceng.c,v 1.1.2.1 2011/07/22 13:29:29 misho Exp $ + * $Id: pceng.c,v 1.1.2.3 2011/07/22 14:20:24 misho Exp $ * ************************************************************************* The ELWIX and AITNET software is distributed under the following @@ -47,8 +47,10 @@ SUCH DAMAGE. #include "pceng.h" -int Verbose; +int Verbose, Kill; extern char compiled[], compiledby[], compilehost[]; +sl_config cfg; +char szConf[MAXPATHLEN] = DEFAULT_PCENG_CFG; static void @@ -60,16 +62,40 @@ Usage() "\n" "\t-v\t\tVerbose ...\n" "\t-b\t\tRun in batch mode ...\n" - "\t-c \t\tConfig events file ...\n" + "\t-c \tConfig events file ...\n" "\n", compiled, compiledby, compilehost); } +static void +sigHand(int sig) +{ + int stat; + switch (sig) { + case SIGHUP: + UnloadConfig(&cfg); + if (LoadConfig(szConf, &cfg)) { + syslog(LOG_ERR, "Error:: #%d - %s", cfg_GetErrno(), cfg_GetError()); + raise(SIGTERM); + } + VERB(1) syslog(LOG_WARNING, "Reload config %s", szConf); + break; + case SIGTERM: + VERB(1) syslog(LOG_WARNING, "Kill process ..."); + Kill++; + break; + case SIGCHLD: + while (waitpid(-1, &stat, WNOHANG) > 0); + } +} + + int main(int argc, char **argv) { - char ch, szConf[MAXPATHLEN] = DEFAULT_PCENG_CFG; - int mode = 0; + char ch; + int io, mode = 0; + struct sigaction sact; while ((ch = getopt(argc, argv, "vhbc:")) != -1) switch (ch) { @@ -90,5 +116,55 @@ main(int argc, char **argv) argc -= optind; argv += optind; + openlog("pceng", LOG_CONS | LOG_PID, LOG_DAEMON); + + if (LoadConfig(szConf, &cfg)) { + printf("Error:: #%d - %s\n", cfg_GetErrno(), cfg_GetError()); + return 1; + } + + sact.sa_handler = sigHand; + sigemptyset(&sact.sa_mask); + sigaction(SIGHUP, &sact, NULL); + sigaction(SIGTERM, &sact, NULL); + sigaction(SIGCHLD, &sact, NULL); + + io = open(_PATH_DEVIO, O_RDWR); + if (io == -1) { + printf("Error:: in open dev %s #%d - %s\n", _PATH_DEVIO, errno, strerror(errno)); + goto end; + } + + if (!mode) + switch (fork()) { + case -1: + printf("Error:: #%d - %s\n", errno, strerror(errno)); + goto end; + case 0: + VERB(1) printf("Welcome into darkness ...\n"); + + setsid(); + chdir("/"); + + mode = open(_PATH_DEVNULL, O_RDWR); + if (mode > 2) { + dup2(mode, STDIN_FILENO); + dup2(mode, STDOUT_FILENO); + dup2(mode, STDERR_FILENO); + close(mode); + } + break; + default: + VERB(1) printf("PCENG Going to shadow land ...\n"); + goto end; + } + + Run(io); + +end: + if (io > 2) + close(io); + UnloadConfig(&cfg); + closelog(); return 0; }