Annotation of embedtools/src/pceng.c, revision 1.1.2.9
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 $
1.1.2.9 ! misho 6: * $Id: pceng.c,v 1.1.2.8 2011/07/25 09:13:34 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"
1.1.2.8 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: {
1.1.2.8 misho 96: char ch, ledno, *pos;
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;
121:
1.1.2.5 misho 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:
1.1.2.7 misho 127: #ifdef HAVE_IO
128: io = open(_PATH_DEVIO, O_RDONLY);
1.1.2.5 misho 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: }
1.1.2.7 misho 134: #endif
135:
136: if (LoadConfig(szConf, &cfg)) {
137: printf("Error:: #%d - %s\n", cfg_GetErrno(), cfg_GetError());
138: ret = 1;
139: return 1;
140: }
1.1.2.5 misho 141:
1.1.2.6 misho 142: if (argc) {
143: VERB(1) syslog(LOG_WARNING, "LED client ...");
1.1.2.8 misho 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: }
1.1.2.7 misho 153: ret = LED((u_char) ledno, (u_char) ch);
1.1.2.9 ! misho 154: if (ch == -1 && ret != -1)
! 155: printf("LED#%d=%d\n", ret);
1.1.2.5 misho 156: }
1.1.2.6 misho 157: goto end;
1.1.2.5 misho 158: }
1.1.2.3 misho 159:
160: sact.sa_handler = sigHand;
161: sigemptyset(&sact.sa_mask);
162: sigaction(SIGHUP, &sact, NULL);
163: sigaction(SIGTERM, &sact, NULL);
164: sigaction(SIGCHLD, &sact, NULL);
165:
166: if (!mode)
167: switch (fork()) {
168: case -1:
169: printf("Error:: #%d - %s\n", errno, strerror(errno));
1.1.2.4 misho 170: ret = 1;
1.1.2.3 misho 171: goto end;
172: case 0:
173: VERB(1) printf("Welcome into darkness ...\n");
174:
175: setsid();
176: chdir("/");
177:
178: mode = open(_PATH_DEVNULL, O_RDWR);
179: if (mode > 2) {
180: dup2(mode, STDIN_FILENO);
181: dup2(mode, STDOUT_FILENO);
182: dup2(mode, STDERR_FILENO);
183: close(mode);
184: }
185: break;
186: default:
187: VERB(1) printf("PCENG Going to shadow land ...\n");
188: goto end;
189: }
190:
1.1.2.7 misho 191: ret = Run();
1.1.2.3 misho 192:
193: end:
1.1.2.5 misho 194: UnloadConfig(&cfg);
1.1.2.7 misho 195: #ifdef HAVE_IO
1.1.2.3 misho 196: if (io > 2)
197: close(io);
1.1.2.7 misho 198: #endif
1.1.2.3 misho 199: closelog();
1.1.2.4 misho 200: return ret;
1.1.2.1 misho 201: }
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