19b50d902SRodney W. Grimes /* 29b50d902SRodney W. Grimes * Copyright (c) 1983, 1993 39b50d902SRodney W. Grimes * The Regents of the University of California. All rights reserved. 49b50d902SRodney W. Grimes * 59b50d902SRodney W. Grimes * Redistribution and use in source and binary forms, with or without 69b50d902SRodney W. Grimes * modification, are permitted provided that the following conditions 79b50d902SRodney W. Grimes * are met: 89b50d902SRodney W. Grimes * 1. Redistributions of source code must retain the above copyright 99b50d902SRodney W. Grimes * notice, this list of conditions and the following disclaimer. 109b50d902SRodney W. Grimes * 2. Redistributions in binary form must reproduce the above copyright 119b50d902SRodney W. Grimes * notice, this list of conditions and the following disclaimer in the 129b50d902SRodney W. Grimes * documentation and/or other materials provided with the distribution. 139b50d902SRodney W. Grimes * 3. All advertising materials mentioning features or use of this software 149b50d902SRodney W. Grimes * must display the following acknowledgement: 159b50d902SRodney W. Grimes * This product includes software developed by the University of 169b50d902SRodney W. Grimes * California, Berkeley and its contributors. 179b50d902SRodney W. Grimes * 4. Neither the name of the University nor the names of its contributors 189b50d902SRodney W. Grimes * may be used to endorse or promote products derived from this software 199b50d902SRodney W. Grimes * without specific prior written permission. 209b50d902SRodney W. Grimes * 219b50d902SRodney W. Grimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 229b50d902SRodney W. Grimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 239b50d902SRodney W. Grimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 249b50d902SRodney W. Grimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 259b50d902SRodney W. Grimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 269b50d902SRodney W. Grimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 279b50d902SRodney W. Grimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 289b50d902SRodney W. Grimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 299b50d902SRodney W. Grimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 309b50d902SRodney W. Grimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 319b50d902SRodney W. Grimes * SUCH DAMAGE. 329b50d902SRodney W. Grimes */ 339b50d902SRodney W. Grimes 349b50d902SRodney W. Grimes #ifndef lint 35df071556SPhilippe Charnier static const char copyright[] = 369b50d902SRodney W. Grimes "@(#) Copyright (c) 1983, 1993\n\ 379b50d902SRodney W. Grimes The Regents of the University of California. All rights reserved.\n"; 389b50d902SRodney W. Grimes #endif /* not lint */ 399b50d902SRodney W. Grimes 409b50d902SRodney W. Grimes #ifndef lint 41df071556SPhilippe Charnier #if 0 429b50d902SRodney W. Grimes static char sccsid[] = "@(#)logger.c 8.1 (Berkeley) 6/6/93"; 43df071556SPhilippe Charnier #endif 449b50d902SRodney W. Grimes #endif /* not lint */ 459bd5ae85SDavid Malone #include <sys/cdefs.h> 469bd5ae85SDavid Malone __FBSDID("$FreeBSD$"); 479bd5ae85SDavid Malone 48b0fe2da8SDavid Malone #include <sys/types.h> 49b0fe2da8SDavid Malone #include <sys/socket.h> 50b0fe2da8SDavid Malone #include <netinet/in.h> 51b0fe2da8SDavid Malone 529b50d902SRodney W. Grimes #include <ctype.h> 53df071556SPhilippe Charnier #include <err.h> 54b0fe2da8SDavid Malone #include <netdb.h> 55df071556SPhilippe Charnier #include <stdio.h> 56df071556SPhilippe Charnier #include <stdlib.h> 579b50d902SRodney W. Grimes #include <string.h> 58df071556SPhilippe Charnier #include <unistd.h> 599b50d902SRodney W. Grimes 609b50d902SRodney W. Grimes #define SYSLOG_NAMES 619b50d902SRodney W. Grimes #include <syslog.h> 629b50d902SRodney W. Grimes 63f1bb2cd2SWarner Losh int decode(char *, CODE *); 64f1bb2cd2SWarner Losh int pencode(char *); 65f1bb2cd2SWarner Losh static void logmessage(int, char *, char *); 66f1bb2cd2SWarner Losh static void usage(void); 679b50d902SRodney W. Grimes 680b5f90afSHajimu UMEMOTO struct socks { 690b5f90afSHajimu UMEMOTO int sock; 700b5f90afSHajimu UMEMOTO int addrlen; 710b5f90afSHajimu UMEMOTO struct sockaddr_storage addr; 720b5f90afSHajimu UMEMOTO }; 730b5f90afSHajimu UMEMOTO 740b5f90afSHajimu UMEMOTO #ifdef INET6 750b5f90afSHajimu UMEMOTO int family = PF_UNSPEC; /* protocol family (IPv4, IPv6 or both) */ 760b5f90afSHajimu UMEMOTO #else 770b5f90afSHajimu UMEMOTO int family = PF_INET; /* protocol family (IPv4 only) */ 780b5f90afSHajimu UMEMOTO #endif 790b5f90afSHajimu UMEMOTO int send_to_all = 0; /* send message to all IPv4/IPv6 addresses */ 800b5f90afSHajimu UMEMOTO 819b50d902SRodney W. Grimes /* 829b50d902SRodney W. Grimes * logger -- read and log utility 839b50d902SRodney W. Grimes * 849b50d902SRodney W. Grimes * Reads from an input and arranges to write the result on the system 859b50d902SRodney W. Grimes * log. 869b50d902SRodney W. Grimes */ 879b50d902SRodney W. Grimes int 88f4ac32deSDavid Malone main(int argc, char *argv[]) 899b50d902SRodney W. Grimes { 909b50d902SRodney W. Grimes int ch, logflags, pri; 91b0fe2da8SDavid Malone char *tag, *host, buf[1024]; 929b50d902SRodney W. Grimes 939b50d902SRodney W. Grimes tag = NULL; 94b0fe2da8SDavid Malone host = NULL; 95ca122bf7SRuslan Ermilov pri = LOG_USER | LOG_NOTICE; 969b50d902SRodney W. Grimes logflags = 0; 9740244c28SPoul-Henning Kamp unsetenv("TZ"); 980b5f90afSHajimu UMEMOTO while ((ch = getopt(argc, argv, "46Af:h:ip:st:")) != -1) 999b50d902SRodney W. Grimes switch((char)ch) { 1000b5f90afSHajimu UMEMOTO case '4': 1010b5f90afSHajimu UMEMOTO family = PF_INET; 1020b5f90afSHajimu UMEMOTO break; 1030b5f90afSHajimu UMEMOTO #ifdef INET6 1040b5f90afSHajimu UMEMOTO case '6': 1050b5f90afSHajimu UMEMOTO family = PF_INET6; 1060b5f90afSHajimu UMEMOTO break; 1070b5f90afSHajimu UMEMOTO #endif 1080b5f90afSHajimu UMEMOTO case 'A': 1090b5f90afSHajimu UMEMOTO send_to_all++; 1100b5f90afSHajimu UMEMOTO break; 1119b50d902SRodney W. Grimes case 'f': /* file to log */ 112df071556SPhilippe Charnier if (freopen(optarg, "r", stdin) == NULL) 113df071556SPhilippe Charnier err(1, "%s", optarg); 1149b50d902SRodney W. Grimes break; 115b0fe2da8SDavid Malone case 'h': /* hostname to deliver to */ 116b0fe2da8SDavid Malone host = optarg; 117b0fe2da8SDavid Malone break; 1189b50d902SRodney W. Grimes case 'i': /* log process id also */ 1199b50d902SRodney W. Grimes logflags |= LOG_PID; 1209b50d902SRodney W. Grimes break; 1219b50d902SRodney W. Grimes case 'p': /* priority */ 1229b50d902SRodney W. Grimes pri = pencode(optarg); 1239b50d902SRodney W. Grimes break; 1249b50d902SRodney W. Grimes case 's': /* log to standard error */ 1259b50d902SRodney W. Grimes logflags |= LOG_PERROR; 1269b50d902SRodney W. Grimes break; 1279b50d902SRodney W. Grimes case 't': /* tag */ 1289b50d902SRodney W. Grimes tag = optarg; 1299b50d902SRodney W. Grimes break; 1309b50d902SRodney W. Grimes case '?': 1319b50d902SRodney W. Grimes default: 1329b50d902SRodney W. Grimes usage(); 1339b50d902SRodney W. Grimes } 1349b50d902SRodney W. Grimes argc -= optind; 1359b50d902SRodney W. Grimes argv += optind; 1369b50d902SRodney W. Grimes 1379b50d902SRodney W. Grimes /* setup for logging */ 1389b50d902SRodney W. Grimes openlog(tag ? tag : getlogin(), logflags, 0); 1399b50d902SRodney W. Grimes (void) fclose(stdout); 1409b50d902SRodney W. Grimes 1419b50d902SRodney W. Grimes /* log input line if appropriate */ 1429b50d902SRodney W. Grimes if (argc > 0) { 143f4ac32deSDavid Malone char *p, *endp; 1449bd5ae85SDavid Malone size_t len; 1459b50d902SRodney W. Grimes 1469b50d902SRodney W. Grimes for (p = buf, endp = buf + sizeof(buf) - 2; *argv;) { 1479b50d902SRodney W. Grimes len = strlen(*argv); 1489b50d902SRodney W. Grimes if (p + len > endp && p > buf) { 149b0fe2da8SDavid Malone logmessage(pri, host, buf); 1509b50d902SRodney W. Grimes p = buf; 1519b50d902SRodney W. Grimes } 1529b50d902SRodney W. Grimes if (len > sizeof(buf) - 1) 153b0fe2da8SDavid Malone logmessage(pri, host, *argv++); 1549b50d902SRodney W. Grimes else { 1559b50d902SRodney W. Grimes if (p != buf) 1569b50d902SRodney W. Grimes *p++ = ' '; 1579b50d902SRodney W. Grimes bcopy(*argv++, p, len); 1589b50d902SRodney W. Grimes *(p += len) = '\0'; 1599b50d902SRodney W. Grimes } 1609b50d902SRodney W. Grimes } 1619b50d902SRodney W. Grimes if (p != buf) 162b0fe2da8SDavid Malone logmessage(pri, host, buf); 1639b50d902SRodney W. Grimes } else 1649b50d902SRodney W. Grimes while (fgets(buf, sizeof(buf), stdin) != NULL) 165b0fe2da8SDavid Malone logmessage(pri, host, buf); 1669b50d902SRodney W. Grimes exit(0); 1679b50d902SRodney W. Grimes } 1689b50d902SRodney W. Grimes 1699b50d902SRodney W. Grimes /* 170b0fe2da8SDavid Malone * Send the message to syslog, either on the local host, or on a remote host 171b0fe2da8SDavid Malone */ 172b0fe2da8SDavid Malone void 173b0fe2da8SDavid Malone logmessage(int pri, char *host, char *buf) 174b0fe2da8SDavid Malone { 1750b5f90afSHajimu UMEMOTO static struct socks *socks; 1760b5f90afSHajimu UMEMOTO static int nsock = 0; 1770b5f90afSHajimu UMEMOTO struct addrinfo hints, *res, *r; 178b0fe2da8SDavid Malone char *line; 1790b5f90afSHajimu UMEMOTO int maxs, len, sock, error, i, lsent; 180b0fe2da8SDavid Malone 181b0fe2da8SDavid Malone if (host == NULL) { 182b0fe2da8SDavid Malone syslog(pri, "%s", buf); 183b0fe2da8SDavid Malone return; 184b0fe2da8SDavid Malone } 185b0fe2da8SDavid Malone 1860b5f90afSHajimu UMEMOTO if (nsock <= 0) { /* set up socket stuff */ 187b0fe2da8SDavid Malone /* resolve hostname */ 1880b5f90afSHajimu UMEMOTO memset(&hints, 0, sizeof(hints)); 1890b5f90afSHajimu UMEMOTO hints.ai_family = family; 1900b5f90afSHajimu UMEMOTO hints.ai_socktype = SOCK_DGRAM; 1910b5f90afSHajimu UMEMOTO error = getaddrinfo(host, "syslog", &hints, &res); 1920b5f90afSHajimu UMEMOTO if (error == EAI_SERVICE) { 1930b5f90afSHajimu UMEMOTO warnx ("syslog/udp: unknown service"); /* not fatal */ 1940b5f90afSHajimu UMEMOTO error = getaddrinfo(host, "514", &hints, &res); 1950b5f90afSHajimu UMEMOTO } 1960b5f90afSHajimu UMEMOTO if (error) 1970b5f90afSHajimu UMEMOTO errx(1, "%s: %s", gai_strerror(error), host); 1980b5f90afSHajimu UMEMOTO /* count max number of sockets we may open */ 1990b5f90afSHajimu UMEMOTO for (maxs = 0, r = res; r; r = r->ai_next, maxs++); 2000b5f90afSHajimu UMEMOTO socks = malloc(maxs * sizeof(struct socks)); 2010b5f90afSHajimu UMEMOTO if (!socks) 2020b5f90afSHajimu UMEMOTO errx(1, "couldn't allocate memory for sockets"); 2030b5f90afSHajimu UMEMOTO for (r = res; r; r = r->ai_next) { 2040b5f90afSHajimu UMEMOTO sock = socket(r->ai_family, r->ai_socktype, 2050b5f90afSHajimu UMEMOTO r->ai_protocol); 206b0fe2da8SDavid Malone if (sock < 0) 2070b5f90afSHajimu UMEMOTO continue; 2080b5f90afSHajimu UMEMOTO memcpy(&socks[nsock].addr, r->ai_addr, r->ai_addrlen); 2090b5f90afSHajimu UMEMOTO socks[nsock].addrlen = r->ai_addrlen; 2100b5f90afSHajimu UMEMOTO socks[nsock++].sock = sock; 2110b5f90afSHajimu UMEMOTO } 2120b5f90afSHajimu UMEMOTO freeaddrinfo(res); 2130b5f90afSHajimu UMEMOTO if (nsock <= 0) 214b0fe2da8SDavid Malone errx(1, "socket"); 215b0fe2da8SDavid Malone } 216b0fe2da8SDavid Malone 217b0fe2da8SDavid Malone if ((len = asprintf(&line, "<%d>%s", pri, buf)) == -1) 218b0fe2da8SDavid Malone errx(1, "asprintf"); 219b0fe2da8SDavid Malone 2200b5f90afSHajimu UMEMOTO for (i = 0; i < nsock; ++i) { 2210b5f90afSHajimu UMEMOTO lsent = sendto(socks[i].sock, line, len, 0, 2220b5f90afSHajimu UMEMOTO (struct sockaddr *)&socks[i].addr, 2230b5f90afSHajimu UMEMOTO socks[i].addrlen); 2240b5f90afSHajimu UMEMOTO if (lsent == len && !send_to_all) 2250b5f90afSHajimu UMEMOTO break; 2260b5f90afSHajimu UMEMOTO } 2279bd5ae85SDavid Malone if (lsent != len) { 22857c1a0b6SBill Fenner if (lsent == -1) 22957c1a0b6SBill Fenner warn ("sendto"); 23057c1a0b6SBill Fenner else 23157c1a0b6SBill Fenner warnx ("sendto: short send - %d bytes", lsent); 2329bd5ae85SDavid Malone } 233b0fe2da8SDavid Malone 234b0fe2da8SDavid Malone free(line); 235b0fe2da8SDavid Malone } 236b0fe2da8SDavid Malone 237b0fe2da8SDavid Malone /* 2389b50d902SRodney W. Grimes * Decode a symbolic name to a numeric value 2399b50d902SRodney W. Grimes */ 2409b50d902SRodney W. Grimes int 241f4ac32deSDavid Malone pencode(char *s) 2429b50d902SRodney W. Grimes { 2439b50d902SRodney W. Grimes char *save; 2449b50d902SRodney W. Grimes int fac, lev; 2459b50d902SRodney W. Grimes 2469b50d902SRodney W. Grimes for (save = s; *s && *s != '.'; ++s); 2479b50d902SRodney W. Grimes if (*s) { 2489b50d902SRodney W. Grimes *s = '\0'; 2499b50d902SRodney W. Grimes fac = decode(save, facilitynames); 250df071556SPhilippe Charnier if (fac < 0) 251df071556SPhilippe Charnier errx(1, "unknown facility name: %s", save); 2529b50d902SRodney W. Grimes *s++ = '.'; 2539b50d902SRodney W. Grimes } 2549b50d902SRodney W. Grimes else { 2559b50d902SRodney W. Grimes fac = 0; 2569b50d902SRodney W. Grimes s = save; 2579b50d902SRodney W. Grimes } 2589b50d902SRodney W. Grimes lev = decode(s, prioritynames); 259df071556SPhilippe Charnier if (lev < 0) 260df071556SPhilippe Charnier errx(1, "unknown priority name: %s", save); 2619b50d902SRodney W. Grimes return ((lev & LOG_PRIMASK) | (fac & LOG_FACMASK)); 2629b50d902SRodney W. Grimes } 2639b50d902SRodney W. Grimes 2649b50d902SRodney W. Grimes int 265f4ac32deSDavid Malone decode(char *name, CODE *codetab) 2669b50d902SRodney W. Grimes { 267f4ac32deSDavid Malone CODE *c; 2689b50d902SRodney W. Grimes 2699b50d902SRodney W. Grimes if (isdigit(*name)) 2709b50d902SRodney W. Grimes return (atoi(name)); 2719b50d902SRodney W. Grimes 2729b50d902SRodney W. Grimes for (c = codetab; c->c_name; c++) 2739b50d902SRodney W. Grimes if (!strcasecmp(name, c->c_name)) 2749b50d902SRodney W. Grimes return (c->c_val); 2759b50d902SRodney W. Grimes 2769b50d902SRodney W. Grimes return (-1); 2779b50d902SRodney W. Grimes } 2789b50d902SRodney W. Grimes 279df071556SPhilippe Charnier static void 280f4ac32deSDavid Malone usage(void) 2819b50d902SRodney W. Grimes { 282b0fe2da8SDavid Malone (void)fprintf(stderr, "usage: %s\n", 2830b5f90afSHajimu UMEMOTO "logger [-46Ais] [-f file] [-h host] [-p pri] [-t tag] [message ...]" 284b0fe2da8SDavid Malone ); 2859b50d902SRodney W. Grimes exit(1); 2869b50d902SRodney W. Grimes } 287