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Diffstat (limited to 'usr.bin/logger/logger.c')
| -rw-r--r-- | usr.bin/logger/logger.c | 192 |
1 files changed, 192 insertions, 0 deletions
diff --git a/usr.bin/logger/logger.c b/usr.bin/logger/logger.c new file mode 100644 index 0000000..3fd3b6b --- /dev/null +++ b/usr.bin/logger/logger.c @@ -0,0 +1,192 @@ +/* + * Copyright (c) 1983, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef lint +static char copyright[] = +"@(#) Copyright (c) 1983, 1993\n\ + The Regents of the University of California. All rights reserved.\n"; +#endif /* not lint */ + +#ifndef lint +static char sccsid[] = "@(#)logger.c 8.1 (Berkeley) 6/6/93"; +#endif /* not lint */ + +#include <errno.h> +#include <unistd.h> +#include <stdlib.h> +#include <stdio.h> +#include <ctype.h> +#include <string.h> + +#define SYSLOG_NAMES +#include <syslog.h> + +int decode __P((char *, CODE *)); +int pencode __P((char *)); +void usage __P((void)); + +/* + * logger -- read and log utility + * + * Reads from an input and arranges to write the result on the system + * log. + */ +int +main(argc, argv) + int argc; + char *argv[]; +{ + int ch, logflags, pri; + char *tag, buf[1024]; + + tag = NULL; + pri = LOG_NOTICE; + logflags = 0; + while ((ch = getopt(argc, argv, "f:ip:st:")) != EOF) + switch((char)ch) { + case 'f': /* file to log */ + if (freopen(optarg, "r", stdin) == NULL) { + (void)fprintf(stderr, "logger: %s: %s.\n", + optarg, strerror(errno)); + exit(1); + } + break; + case 'i': /* log process id also */ + logflags |= LOG_PID; + break; + case 'p': /* priority */ + pri = pencode(optarg); + break; + case 's': /* log to standard error */ + logflags |= LOG_PERROR; + break; + case 't': /* tag */ + tag = optarg; + break; + case '?': + default: + usage(); + } + argc -= optind; + argv += optind; + + /* setup for logging */ + openlog(tag ? tag : getlogin(), logflags, 0); + (void) fclose(stdout); + + /* log input line if appropriate */ + if (argc > 0) { + register char *p, *endp; + int len; + + for (p = buf, endp = buf + sizeof(buf) - 2; *argv;) { + len = strlen(*argv); + if (p + len > endp && p > buf) { + syslog(pri, "%s", buf); + p = buf; + } + if (len > sizeof(buf) - 1) + syslog(pri, "%s", *argv++); + else { + if (p != buf) + *p++ = ' '; + bcopy(*argv++, p, len); + *(p += len) = '\0'; + } + } + if (p != buf) + syslog(pri, "%s", buf); + } else + while (fgets(buf, sizeof(buf), stdin) != NULL) + syslog(pri, "%s", buf); + exit(0); +} + +/* + * Decode a symbolic name to a numeric value + */ +int +pencode(s) + register char *s; +{ + char *save; + int fac, lev; + + for (save = s; *s && *s != '.'; ++s); + if (*s) { + *s = '\0'; + fac = decode(save, facilitynames); + if (fac < 0) { + (void)fprintf(stderr, + "logger: unknown facility name: %s.\n", save); + exit(1); + } + *s++ = '.'; + } + else { + fac = 0; + s = save; + } + lev = decode(s, prioritynames); + if (lev < 0) { + (void)fprintf(stderr, + "logger: unknown priority name: %s.\n", save); + exit(1); + } + return ((lev & LOG_PRIMASK) | (fac & LOG_FACMASK)); +} + +int +decode(name, codetab) + char *name; + CODE *codetab; +{ + register CODE *c; + + if (isdigit(*name)) + return (atoi(name)); + + for (c = codetab; c->c_name; c++) + if (!strcasecmp(name, c->c_name)) + return (c->c_val); + + return (-1); +} + +void +usage() +{ + (void)fprintf(stderr, + "logger: [-is] [-f file] [-p pri] [-t tag] [ message ... ]\n"); + exit(1); +} |
