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 1.2 2012/07/22 22:46:47 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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