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db060681 FT |
1 | /* |
2 | ashd - A Sane HTTP Daemon | |
3 | Copyright (C) 2008 Fredrik Tolf <fredrik@dolda2000.com> | |
4 | ||
5 | This program is free software: you can redistribute it and/or modify | |
6 | it under the terms of the GNU General Public License as published by | |
7 | the Free Software Foundation, either version 3 of the License, or | |
8 | (at your option) any later version. | |
9 | ||
10 | This program is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | GNU General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU General Public License | |
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | |
17 | */ | |
18 | ||
19 | #include <stdio.h> | |
20 | #include <stdlib.h> | |
21 | #include <syslog.h> | |
22 | #include <unistd.h> | |
23 | #include <string.h> | |
24 | #include <errno.h> | |
f8a88314 | 25 | #include <signal.h> |
db060681 FT |
26 | |
27 | static int prio; | |
28 | ||
29 | static void logloop(int fd) | |
30 | { | |
31 | FILE *in; | |
32 | char buf[1024]; | |
33 | size_t len; | |
34 | ||
35 | in = fdopen(fd, "r"); | |
36 | while(fgets(buf, sizeof(buf), in) != NULL) { | |
37 | len = strlen(buf); | |
38 | if(buf[len - 1] == '\n') | |
39 | buf[len - 1] = 0; | |
40 | syslog(prio, "%s", buf); | |
41 | } | |
42 | fclose(in); | |
43 | } | |
44 | ||
45 | static void usage(FILE *out) | |
46 | { | |
47 | fprintf(out, "usage: errlogger [-h] [-n NAME] [-f FACILITY] [-p PRIO] PROGRAM [ARGS...]\n"); | |
48 | } | |
49 | ||
50 | int main(int argc, char **argv) | |
51 | { | |
52 | int c; | |
53 | int pfd[2]; | |
54 | pid_t ch; | |
55 | char *name; | |
56 | int fac; | |
57 | ||
58 | name = NULL; | |
59 | prio = LOG_WARNING; | |
60 | fac = LOG_DAEMON; | |
61 | while((c = getopt(argc, argv, "hn:p:f:")) >= 0) { | |
62 | switch(c) { | |
63 | case 'n': | |
64 | name = optarg; | |
65 | break; | |
66 | case 'f': | |
67 | if(!strcmp(optarg, "auth")) { | |
68 | fac = LOG_AUTH; | |
69 | } else if(!strcmp(optarg, "authpriv")) { | |
70 | fac = LOG_AUTHPRIV; | |
71 | } else if(!strcmp(optarg, "cron")) { | |
72 | fac = LOG_CRON; | |
73 | } else if(!strcmp(optarg, "daemon")) { | |
74 | fac = LOG_DAEMON; | |
75 | } else if(!strcmp(optarg, "ftp")) { | |
76 | fac = LOG_FTP; | |
77 | } else if(!strcmp(optarg, "kern")) { | |
78 | fac = LOG_KERN; | |
79 | } else if(!strcmp(optarg, "lpr")) { | |
80 | fac = LOG_LPR; | |
81 | } else if(!strcmp(optarg, "mail")) { | |
82 | fac = LOG_MAIL; | |
83 | } else if(!strcmp(optarg, "news")) { | |
84 | fac = LOG_NEWS; | |
85 | } else if(!strcmp(optarg, "user")) { | |
86 | fac = LOG_USER; | |
87 | } else if(!strcmp(optarg, "uucp")) { | |
88 | fac = LOG_UUCP; | |
89 | } else if(!strncmp(optarg, "local", 5) && (optarg[5] >= '0') && (optarg[5] <= '7') && !optarg[6]) { | |
90 | fac = LOG_LOCAL0 + (optarg[5] - '0'); | |
91 | } else { | |
92 | fprintf(stderr, "errlogger: unknown facility %s\n", optarg); | |
93 | exit(1); | |
94 | } | |
95 | break; | |
96 | case 'p': | |
97 | if(!strcmp(optarg, "emerg")) { | |
98 | fac = LOG_EMERG; | |
99 | } else if(!strcmp(optarg, "alert")) { | |
100 | fac = LOG_ALERT; | |
101 | } else if(!strcmp(optarg, "crit")) { | |
102 | fac = LOG_CRIT; | |
103 | } else if(!strcmp(optarg, "err")) { | |
104 | fac = LOG_ERR; | |
105 | } else if(!strcmp(optarg, "warning")) { | |
106 | fac = LOG_WARNING; | |
107 | } else if(!strcmp(optarg, "notice")) { | |
108 | fac = LOG_NOTICE; | |
109 | } else if(!strcmp(optarg, "info")) { | |
110 | fac = LOG_INFO; | |
111 | } else if(!strcmp(optarg, "debug")) { | |
112 | fac = LOG_DEBUG; | |
113 | } else { | |
114 | fprintf(stderr, "errlogger: unknown priorty %s\n", optarg); | |
115 | exit(1); | |
116 | } | |
117 | break; | |
118 | case 'h': | |
119 | usage(stdout); | |
120 | exit(0); | |
121 | default: | |
122 | usage(stderr); | |
123 | exit(1); | |
124 | } | |
125 | } | |
126 | if(argc - optind < 1) { | |
127 | usage(stderr); | |
128 | exit(1); | |
129 | } | |
130 | if(name == NULL) | |
131 | name = argv[optind]; | |
132 | openlog(name, 0, fac); | |
133 | pipe(pfd); | |
134 | if((ch = fork()) == 0) { | |
135 | close(pfd[0]); | |
136 | if(pfd[1] != 2) { | |
137 | dup2(pfd[1], 2); | |
138 | close(pfd[1]); | |
139 | } | |
140 | execvp(argv[optind], argv + optind); | |
141 | fprintf(stderr, "errlogger: %s: %s", argv[optind], strerror(errno)); | |
142 | exit(127); | |
143 | } | |
144 | close(pfd[1]); | |
f8a88314 | 145 | signal(SIGCHLD, SIG_IGN); |
db060681 FT |
146 | logloop(pfd[0]); |
147 | return(0); | |
148 | } |