Annotation of src/usr.bin/logger/logger.c, Revision 1.1
1.1 ! deraadt 1: /* $NetBSD: logger.c,v 1.4 1994/12/22 06:27:00 jtc Exp $ */
! 2:
! 3: /*
! 4: * Copyright (c) 1983, 1993
! 5: * The Regents of the University of California. All rights reserved.
! 6: *
! 7: * Redistribution and use in source and binary forms, with or without
! 8: * modification, are permitted provided that the following conditions
! 9: * are met:
! 10: * 1. Redistributions of source code must retain the above copyright
! 11: * notice, this list of conditions and the following disclaimer.
! 12: * 2. Redistributions in binary form must reproduce the above copyright
! 13: * notice, this list of conditions and the following disclaimer in the
! 14: * documentation and/or other materials provided with the distribution.
! 15: * 3. All advertising materials mentioning features or use of this software
! 16: * must display the following acknowledgement:
! 17: * This product includes software developed by the University of
! 18: * California, Berkeley and its contributors.
! 19: * 4. Neither the name of the University nor the names of its contributors
! 20: * may be used to endorse or promote products derived from this software
! 21: * without specific prior written permission.
! 22: *
! 23: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
! 24: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 25: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 26: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
! 27: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 28: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 29: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 30: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 31: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 32: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 33: * SUCH DAMAGE.
! 34: */
! 35:
! 36: #ifndef lint
! 37: static char copyright[] =
! 38: "@(#) Copyright (c) 1983, 1993\n\
! 39: The Regents of the University of California. All rights reserved.\n";
! 40: #endif /* not lint */
! 41:
! 42: #ifndef lint
! 43: #if 0
! 44: static char sccsid[] = "@(#)logger.c 8.1 (Berkeley) 6/6/93";
! 45: #endif
! 46: static char rcsid[] = "$NetBSD: logger.c,v 1.4 1994/12/22 06:27:00 jtc Exp $";
! 47: #endif /* not lint */
! 48:
! 49: #include <errno.h>
! 50: #include <unistd.h>
! 51: #include <stdlib.h>
! 52: #include <stdio.h>
! 53: #include <ctype.h>
! 54: #include <string.h>
! 55:
! 56: #define SYSLOG_NAMES
! 57: #include <syslog.h>
! 58:
! 59: int decode __P((char *, CODE *));
! 60: int pencode __P((char *));
! 61: void usage __P((void));
! 62:
! 63: /*
! 64: * logger -- read and log utility
! 65: *
! 66: * Reads from an input and arranges to write the result on the system
! 67: * log.
! 68: */
! 69: int
! 70: main(argc, argv)
! 71: int argc;
! 72: char *argv[];
! 73: {
! 74: int ch, logflags, pri;
! 75: char *tag, buf[1024];
! 76:
! 77: tag = NULL;
! 78: pri = LOG_NOTICE;
! 79: logflags = 0;
! 80: while ((ch = getopt(argc, argv, "f:ip:st:")) != EOF)
! 81: switch((char)ch) {
! 82: case 'f': /* file to log */
! 83: if (freopen(optarg, "r", stdin) == NULL) {
! 84: (void)fprintf(stderr, "logger: %s: %s.\n",
! 85: optarg, strerror(errno));
! 86: exit(1);
! 87: }
! 88: break;
! 89: case 'i': /* log process id also */
! 90: logflags |= LOG_PID;
! 91: break;
! 92: case 'p': /* priority */
! 93: pri = pencode(optarg);
! 94: break;
! 95: case 's': /* log to standard error */
! 96: logflags |= LOG_PERROR;
! 97: break;
! 98: case 't': /* tag */
! 99: tag = optarg;
! 100: break;
! 101: case '?':
! 102: default:
! 103: usage();
! 104: }
! 105: argc -= optind;
! 106: argv += optind;
! 107:
! 108: /* setup for logging */
! 109: openlog(tag ? tag : getlogin(), logflags, 0);
! 110: (void) fclose(stdout);
! 111:
! 112: /* log input line if appropriate */
! 113: if (argc > 0) {
! 114: register char *p, *endp;
! 115: int len;
! 116:
! 117: for (p = buf, endp = buf + sizeof(buf) - 2; *argv;) {
! 118: len = strlen(*argv);
! 119: if (p + len > endp && p > buf) {
! 120: syslog(pri, "%s", buf);
! 121: p = buf;
! 122: }
! 123: if (len > sizeof(buf) - 1)
! 124: syslog(pri, "%s", *argv++);
! 125: else {
! 126: if (p != buf)
! 127: *p++ = ' ';
! 128: bcopy(*argv++, p, len);
! 129: *(p += len) = '\0';
! 130: }
! 131: }
! 132: if (p != buf)
! 133: syslog(pri, "%s", buf);
! 134: } else
! 135: while (fgets(buf, sizeof(buf), stdin) != NULL)
! 136: syslog(pri, "%s", buf);
! 137: exit(0);
! 138: }
! 139:
! 140: /*
! 141: * Decode a symbolic name to a numeric value
! 142: */
! 143: int
! 144: pencode(s)
! 145: register char *s;
! 146: {
! 147: char *save;
! 148: int fac, lev;
! 149:
! 150: for (save = s; *s && *s != '.'; ++s);
! 151: if (*s) {
! 152: *s = '\0';
! 153: fac = decode(save, facilitynames);
! 154: if (fac < 0) {
! 155: (void)fprintf(stderr,
! 156: "logger: unknown facility name: %s.\n", save);
! 157: exit(1);
! 158: }
! 159: *s++ = '.';
! 160: }
! 161: else {
! 162: fac = 0;
! 163: s = save;
! 164: }
! 165: lev = decode(s, prioritynames);
! 166: if (lev < 0) {
! 167: (void)fprintf(stderr,
! 168: "logger: unknown priority name: %s.\n", save);
! 169: exit(1);
! 170: }
! 171: return ((lev & LOG_PRIMASK) | (fac & LOG_FACMASK));
! 172: }
! 173:
! 174: int
! 175: decode(name, codetab)
! 176: char *name;
! 177: CODE *codetab;
! 178: {
! 179: register CODE *c;
! 180:
! 181: if (isdigit(*name))
! 182: return (atoi(name));
! 183:
! 184: for (c = codetab; c->c_name; c++)
! 185: if (!strcasecmp(name, c->c_name))
! 186: return (c->c_val);
! 187:
! 188: return (-1);
! 189: }
! 190:
! 191: void
! 192: usage()
! 193: {
! 194: (void)fprintf(stderr,
! 195: "logger: [-is] [-f file] [-p pri] [-t tag] [ message ... ]\n");
! 196: exit(1);
! 197: }
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