Annotation of embedtools/src/pceng.c, revision 1.2
1.2 ! misho 1: /*************************************************************************
! 2: * (C) 2011 AITNET - Sofia/Bulgaria - <office@aitbg.com>
! 3: * by Michael Pounov <misho@aitbg.com>
! 4: *
! 5: * $Author: misho $
! 6: * $Id: pceng.c,v 1.1.2.12 2012/04/05 12:22:44 misho Exp $
! 7: *
! 8: *************************************************************************
! 9: The ELWIX and AITNET software is distributed under the following
! 10: terms:
! 11:
! 12: All of the documentation and software included in the ELWIX and AITNET
! 13: Releases is copyrighted by ELWIX - Sofia/Bulgaria <info@elwix.org>
! 14:
! 15: Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
! 16: by Michael Pounov <misho@elwix.org>. All rights reserved.
! 17:
! 18: Redistribution and use in source and binary forms, with or without
! 19: modification, are permitted provided that the following conditions
! 20: are met:
! 21: 1. Redistributions of source code must retain the above copyright
! 22: notice, this list of conditions and the following disclaimer.
! 23: 2. Redistributions in binary form must reproduce the above copyright
! 24: notice, this list of conditions and the following disclaimer in the
! 25: documentation and/or other materials provided with the distribution.
! 26: 3. All advertising materials mentioning features or use of this software
! 27: must display the following acknowledgement:
! 28: This product includes software developed by Michael Pounov <misho@elwix.org>
! 29: ELWIX - Embedded LightWeight unIX and its contributors.
! 30: 4. Neither the name of AITNET nor the names of its contributors
! 31: may be used to endorse or promote products derived from this software
! 32: without specific prior written permission.
! 33:
! 34: THIS SOFTWARE IS PROVIDED BY AITNET AND CONTRIBUTORS ``AS IS'' AND
! 35: ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 36: IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 37: ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
! 38: FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 39: DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 40: OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 41: HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 42: LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 43: OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 44: SUCH DAMAGE.
! 45: */
! 46: #include "global.h"
! 47: #include "pceng.h"
! 48:
! 49:
! 50: int Verbose, Kill;
! 51: extern char compiled[], compiledby[], compilehost[];
! 52: cfg_root_t cfg;
! 53: char szConf[MAXPATHLEN] = DEFAULT_PCENG_CFG;
! 54:
! 55:
! 56: static void
! 57: Usage()
! 58: {
! 59: printf( "-= PCEngines =- events managment tool\n"
! 60: "=== %s === %s@%s ===\n\n"
! 61: " Syntax: pceng [options] [led_no[=<0|1>] ...]\n"
! 62: "\n"
! 63: "\t-v\t\tVerbose ...\n"
! 64: "\t-D\t\tRun in background mode ...\n"
! 65: "\t-c <conf>\tConfig events file ...\n"
! 66: "\n", compiled, compiledby, compilehost);
! 67: }
! 68:
! 69: static void
! 70: sigHand(int sig)
! 71: {
! 72: int stat;
! 73:
! 74: switch (sig) {
! 75: case SIGHUP:
! 76: cfgUnloadConfig(&cfg);
! 77: if (cfgLoadConfig(szConf, &cfg)) {
! 78: syslog(LOG_ERR, "Error:: #%d - %s", cfg_GetErrno(), cfg_GetError());
! 79: raise(SIGTERM);
! 80: }
! 81: VERB(1) syslog(LOG_WARNING, "Reload config %s", szConf);
! 82: break;
! 83: case SIGTERM:
! 84: VERB(1) syslog(LOG_WARNING, "Kill process ...");
! 85: Kill++;
! 86: break;
! 87: case SIGCHLD:
! 88: while (waitpid(-1, &stat, WNOHANG) > 0);
! 89: }
! 90: }
! 91:
! 92:
! 93: int
! 94: main(int argc, char **argv)
! 95: {
! 96: char ch, ledno, *pos;
! 97: int i, ret = 0, mode = 1;
! 98: struct sigaction sact;
! 99: #ifdef __FreeBSD__
! 100: int io;
! 101: #endif
! 102:
! 103: while ((ch = getopt(argc, argv, "vhDc:")) != -1)
! 104: switch (ch) {
! 105: case 'c':
! 106: strlcpy(szConf, optarg, sizeof szConf);
! 107: break;
! 108: case 'D':
! 109: mode = 0;
! 110: break;
! 111: case 'v':
! 112: Verbose++;
! 113: break;
! 114: case 'h':
! 115: default:
! 116: Usage();
! 117: return 1;
! 118: }
! 119: argc -= optind;
! 120: argv += optind;
! 121:
! 122: if (!mode)
! 123: openlog("pceng", LOG_CONS | LOG_PID, LOG_DAEMON);
! 124: else
! 125: openlog("pceng", LOG_CONS | LOG_PID | LOG_PERROR, LOG_USER);
! 126:
! 127: #ifdef __FreeBSD__
! 128: io = open(_PATH_DEVIO, O_RDONLY);
! 129: if (io == -1) {
! 130: printf("Error:: in open dev %s #%d - %s\n", _PATH_DEVIO, errno, strerror(errno));
! 131: ret = 2;
! 132: goto end;
! 133: }
! 134: #endif
! 135:
! 136: if (cfgLoadConfig(szConf, &cfg)) {
! 137: printf("Error:: #%d - %s\n", cfg_GetErrno(), cfg_GetError());
! 138: ret = 1;
! 139: goto end;
! 140: }
! 141:
! 142: if (argc) {
! 143: VERB(1) syslog(LOG_WARNING, "LED client ...");
! 144: for (i = 0; !ret && i < argc; pos = NULL, i++) {
! 145: if ((pos = strchr(argv[i], '='))) {
! 146: *pos++ = 0;
! 147: ledno = (char) strtol(argv[i], NULL, 0);
! 148: ch = (char) strtol(pos, NULL, 0);
! 149: } else {
! 150: ledno = (char) strtol(argv[i], NULL, 0);
! 151: ch = -1;
! 152: }
! 153: ret = LED((u_char) ledno, (u_char) ch);
! 154: printf("%s:: LED#%d=%d\n", (ch == -1) ? "Get" : "Set", ledno, ret);
! 155: }
! 156: goto end;
! 157: }
! 158:
! 159: sact.sa_handler = sigHand;
! 160: sigemptyset(&sact.sa_mask);
! 161: sigaction(SIGHUP, &sact, NULL);
! 162: sigaction(SIGTERM, &sact, NULL);
! 163: sigaction(SIGCHLD, &sact, NULL);
! 164:
! 165: if (!mode)
! 166: switch (fork()) {
! 167: case -1:
! 168: printf("Error:: #%d - %s\n", errno, strerror(errno));
! 169: ret = 1;
! 170: goto end;
! 171: case 0:
! 172: VERB(1) printf("Welcome into darkness ...\n");
! 173:
! 174: setsid();
! 175: chdir("/");
! 176:
! 177: mode = open(_PATH_DEVNULL, O_RDWR);
! 178: if (mode > 2) {
! 179: dup2(mode, STDIN_FILENO);
! 180: dup2(mode, STDOUT_FILENO);
! 181: dup2(mode, STDERR_FILENO);
! 182: close(mode);
! 183: }
! 184: break;
! 185: default:
! 186: VERB(1) printf("PCENG Going to shadow land ...\n");
! 187: goto end;
! 188: }
! 189:
! 190: ret = Run();
! 191:
! 192: end:
! 193: cfgUnloadConfig(&cfg);
! 194: #ifdef __FreeBSD__
! 195: if (io > 2)
! 196: close(io);
! 197: #endif
! 198: closelog();
! 199: return ret;
! 200: }
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