Annotation of embedtools/src/pceng.c, revision 1.1.2.7
1.1.2.1 misho 1: /*************************************************************************
2: * (C) 2011 AITNET - Sofia/Bulgaria - <office@aitbg.com>
3: * by Michael Pounov <misho@aitbg.com>
4: *
5: * $Author: misho $
1.1.2.7 ! misho 6: * $Id: pceng.c,v 1.1.2.6 2011/07/22 15:10:53 misho Exp $
1.1.2.1 misho 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
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:
1.1.2.3 misho 50: int Verbose, Kill;
1.1.2.1 misho 51: extern char compiled[], compiledby[], compilehost[];
1.1.2.2 misho 52: sl_config cfg;
1.1.2.3 misho 53: char szConf[MAXPATHLEN] = DEFAULT_PCENG_CFG;
1.1.2.1 misho 54:
55:
56: static void
57: Usage()
58: {
59: printf( "-= PCEngines =- events managment tool\n"
60: "=== %s === %s@%s ===\n\n"
1.1.2.5 misho 61: " Syntax: pceng [options] [[led_no <0|1>] ...]\n"
1.1.2.1 misho 62: "\n"
63: "\t-v\t\tVerbose ...\n"
1.1.2.5 misho 64: "\t-D\t\tRun in background mode ...\n"
1.1.2.2 misho 65: "\t-c <conf>\tConfig events file ...\n"
1.1.2.1 misho 66: "\n", compiled, compiledby, compilehost);
67: }
68:
1.1.2.3 misho 69: static void
70: sigHand(int sig)
71: {
72: int stat;
73:
74: switch (sig) {
75: case SIGHUP:
76: UnloadConfig(&cfg);
77: if (LoadConfig(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:
1.1.2.1 misho 92:
93: int
94: main(int argc, char **argv)
95: {
1.1.2.5 misho 96: char ch, ledno;
1.1.2.7 ! misho 97: int i, ret = 0, mode = 1;
1.1.2.3 misho 98: struct sigaction sact;
1.1.2.7 ! misho 99: #ifdef HAVE_IO
! 100: int io;
! 101: #endif
1.1.2.1 misho 102:
1.1.2.5 misho 103: while ((ch = getopt(argc, argv, "vhDc:")) != -1)
1.1.2.1 misho 104: switch (ch) {
105: case 'c':
106: strlcpy(szConf, optarg, sizeof szConf);
107: break;
1.1.2.5 misho 108: case 'D':
109: mode = 0;
1.1.2.1 misho 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;
1.1.2.6 misho 121: if (argc && argc % 2) {
122: printf("Error:: not enough parameters ...\n");
123: return 1;
124: }
1.1.2.1 misho 125:
1.1.2.5 misho 126: if (!mode)
127: openlog("pceng", LOG_CONS | LOG_PID, LOG_DAEMON);
128: else
129: openlog("pceng", LOG_CONS | LOG_PID | LOG_PERROR, LOG_USER);
130:
1.1.2.7 ! misho 131: #ifdef HAVE_IO
! 132: io = open(_PATH_DEVIO, O_RDONLY);
1.1.2.5 misho 133: if (io == -1) {
134: printf("Error:: in open dev %s #%d - %s\n", _PATH_DEVIO, errno, strerror(errno));
135: ret = 2;
136: goto end;
137: }
1.1.2.7 ! misho 138: #endif
! 139:
! 140: if (LoadConfig(szConf, &cfg)) {
! 141: printf("Error:: #%d - %s\n", cfg_GetErrno(), cfg_GetError());
! 142: ret = 1;
! 143: return 1;
! 144: }
1.1.2.5 misho 145:
1.1.2.6 misho 146: if (argc) {
147: VERB(1) syslog(LOG_WARNING, "LED client ...");
1.1.2.5 misho 148: for (i = 0; !ret && i < argc; i += 2) {
149: ledno = (char) strtol(argv[i], NULL, 0);
150: ch = (char) strtol(argv[i + 1], NULL, 0);
1.1.2.7 ! misho 151: ret = LED((u_char) ledno, (u_char) ch);
1.1.2.5 misho 152: }
1.1.2.6 misho 153: goto end;
1.1.2.5 misho 154: }
1.1.2.3 misho 155:
156: sact.sa_handler = sigHand;
157: sigemptyset(&sact.sa_mask);
158: sigaction(SIGHUP, &sact, NULL);
159: sigaction(SIGTERM, &sact, NULL);
160: sigaction(SIGCHLD, &sact, NULL);
161:
162: if (!mode)
163: switch (fork()) {
164: case -1:
165: printf("Error:: #%d - %s\n", errno, strerror(errno));
1.1.2.4 misho 166: ret = 1;
1.1.2.3 misho 167: goto end;
168: case 0:
169: VERB(1) printf("Welcome into darkness ...\n");
170:
171: setsid();
172: chdir("/");
173:
174: mode = open(_PATH_DEVNULL, O_RDWR);
175: if (mode > 2) {
176: dup2(mode, STDIN_FILENO);
177: dup2(mode, STDOUT_FILENO);
178: dup2(mode, STDERR_FILENO);
179: close(mode);
180: }
181: break;
182: default:
183: VERB(1) printf("PCENG Going to shadow land ...\n");
184: goto end;
185: }
186:
1.1.2.7 ! misho 187: ret = Run();
1.1.2.3 misho 188:
189: end:
1.1.2.5 misho 190: UnloadConfig(&cfg);
1.1.2.7 ! misho 191: #ifdef HAVE_IO
1.1.2.3 misho 192: if (io > 2)
193: close(io);
1.1.2.7 ! misho 194: #endif
1.1.2.3 misho 195: closelog();
1.1.2.4 misho 196: return ret;
1.1.2.1 misho 197: }
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