1 /* 2 * Copyright (c) 1983 Regents of the University of California. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 #ifndef lint 35 char copyright[] = 36 "@(#) Copyright (c) 1983 Regents of the University of California.\n\ 37 All rights reserved.\n"; 38 #endif /* not lint */ 39 40 #ifndef lint 41 static char sccsid[] = "@(#)logger.c 6.15 (Berkeley) 3/1/91"; 42 #endif /* not lint */ 43 44 #include <stdio.h> 45 #include <syslog.h> 46 #include <ctype.h> 47 48 /* 49 ** LOGGER -- read and log utility 50 ** 51 ** This routine reads from an input and arranges to write the 52 ** result on the system log, along with a useful tag. 53 */ 54 55 main(argc, argv) 56 int argc; 57 char **argv; 58 { 59 extern char *optarg; 60 extern int errno, optind; 61 int pri = LOG_NOTICE; 62 int ch, logflags = 0; 63 char *tag, buf[1024], *getlogin(), *strerror(); 64 65 tag = NULL; 66 while ((ch = getopt(argc, argv, "f:ip:st:")) != EOF) 67 switch((char)ch) { 68 case 'f': /* file to log */ 69 if (freopen(optarg, "r", stdin) == NULL) { 70 (void)fprintf(stderr, "logger: %s: %s.\n", 71 optarg, strerror(errno)); 72 exit(1); 73 } 74 break; 75 case 'i': /* log process id also */ 76 logflags |= LOG_PID; 77 break; 78 case 'p': /* priority */ 79 pri = pencode(optarg); 80 break; 81 case 's': /* log to standard error */ 82 logflags |= LOG_PERROR; 83 break; 84 case 't': /* tag */ 85 tag = optarg; 86 break; 87 case '?': 88 default: 89 usage(); 90 } 91 argc -= optind; 92 argv += optind; 93 94 /* setup for logging */ 95 openlog(tag ? tag : getlogin(), logflags, 0); 96 (void) fclose(stdout); 97 98 /* log input line if appropriate */ 99 if (argc > 0) { 100 register char *p, *endp; 101 int len; 102 103 for (p = buf, endp = buf + sizeof(buf) - 2; *argv;) { 104 len = strlen(*argv); 105 if (p + len > endp && p > buf) { 106 syslog(pri, "%s", buf); 107 p = buf; 108 } 109 if (len > sizeof(buf) - 1) 110 syslog(pri, "%s", *argv++); 111 else { 112 if (p != buf) 113 *p++ = ' '; 114 bcopy(*argv++, p, len); 115 *(p += len) = '\0'; 116 } 117 } 118 if (p != buf) 119 syslog(pri, "%s", buf); 120 exit(0); 121 } 122 123 /* main loop */ 124 while (fgets(buf, sizeof(buf), stdin) != NULL) 125 syslog(pri, "%s", buf); 126 127 exit(0); 128 } 129 130 #define SYSLOG_NAMES 131 #include <syslog.h> 132 133 /* 134 * Decode a symbolic name to a numeric value 135 */ 136 pencode(s) 137 register char *s; 138 { 139 char *save; 140 int fac, lev; 141 142 for (save = s; *s && *s != '.'; ++s); 143 if (*s) { 144 *s = '\0'; 145 fac = decode(save, facilitynames); 146 if (fac < 0) { 147 (void)fprintf(stderr, 148 "logger: unknown facility name: %s.\n", save); 149 exit(1); 150 } 151 *s++ = '.'; 152 } 153 else { 154 fac = 0; 155 s = save; 156 } 157 lev = decode(s, prioritynames); 158 if (lev < 0) { 159 (void)fprintf(stderr, 160 "logger: unknown priority name: %s.\n", save); 161 exit(1); 162 } 163 return ((lev & LOG_PRIMASK) | (fac & LOG_FACMASK)); 164 } 165 166 decode(name, codetab) 167 char *name; 168 CODE *codetab; 169 { 170 register CODE *c; 171 172 if (isdigit(*name)) 173 return (atoi(name)); 174 175 for (c = codetab; c->c_name; c++) 176 if (!strcasecmp(name, c->c_name)) 177 return (c->c_val); 178 179 return (-1); 180 } 181 182 usage() 183 { 184 (void)fprintf(stderr, 185 "logger: [-i] [-f file] [-p pri] [-t tag] [ message ... ]\n"); 186 exit(1); 187 } 188