| 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> |
| 25 | #include <signal.h> |
| 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]); |
| 145 | signal(SIGCHLD, SIG_IGN); |
| 146 | logloop(pfd[0]); |
| 147 | return(0); |
| 148 | } |