1 /* $OpenBSD: log.c,v 1.5 2006/03/09 16:58:40 claudio Exp $ */ 2 3 /* 4 * Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org> 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19 #include <errno.h> 20 #include <stdarg.h> 21 #include <stdio.h> 22 #include <stdlib.h> 23 #include <string.h> 24 #include <syslog.h> 25 #include <unistd.h> 26 27 #include "ospfd.h" 28 #include "log.h" 29 30 static const char * const procnames[] = { 31 "parent", 32 "ospfe", 33 "rde" 34 }; 35 36 int debug; 37 38 void logit(int, const char *, ...); 39 40 void 41 log_init(int n_debug) 42 { 43 extern char *__progname; 44 45 debug = n_debug; 46 47 if (!debug) 48 openlog(__progname, LOG_PID | LOG_NDELAY, LOG_DAEMON); 49 50 tzset(); 51 } 52 53 void 54 logit(int pri, const char *fmt, ...) 55 { 56 va_list ap; 57 58 va_start(ap, fmt); 59 vlog(pri, fmt, ap); 60 va_end(ap); 61 } 62 63 void 64 vlog(int pri, const char *fmt, va_list ap) 65 { 66 char *nfmt; 67 68 if (debug) { 69 /* best effort in out of mem situations */ 70 if (asprintf(&nfmt, "%s\n", fmt) == -1) { 71 vfprintf(stderr, fmt, ap); 72 fprintf(stderr, "\n"); 73 } else { 74 vfprintf(stderr, nfmt, ap); 75 free(nfmt); 76 } 77 fflush(stderr); 78 } else 79 vsyslog(pri, fmt, ap); 80 } 81 82 void 83 log_warn(const char *emsg, ...) 84 { 85 char *nfmt; 86 va_list ap; 87 88 /* best effort to even work in out of memory situations */ 89 if (emsg == NULL) 90 logit(LOG_CRIT, "%s", strerror(errno)); 91 else { 92 va_start(ap, emsg); 93 94 if (asprintf(&nfmt, "%s: %s", emsg, strerror(errno)) == -1) { 95 /* we tried it... */ 96 vlog(LOG_CRIT, emsg, ap); 97 logit(LOG_CRIT, "%s", strerror(errno)); 98 } else { 99 vlog(LOG_CRIT, nfmt, ap); 100 free(nfmt); 101 } 102 va_end(ap); 103 } 104 } 105 106 void 107 log_warnx(const char *emsg, ...) 108 { 109 va_list ap; 110 111 va_start(ap, emsg); 112 vlog(LOG_CRIT, emsg, ap); 113 va_end(ap); 114 } 115 116 void 117 log_info(const char *emsg, ...) 118 { 119 va_list ap; 120 121 va_start(ap, emsg); 122 vlog(LOG_INFO, emsg, ap); 123 va_end(ap); 124 } 125 126 void 127 log_debug(const char *emsg, ...) 128 { 129 va_list ap; 130 131 if (debug) { 132 va_start(ap, emsg); 133 vlog(LOG_DEBUG, emsg, ap); 134 va_end(ap); 135 } 136 } 137 138 void 139 fatal(const char *emsg) 140 { 141 if (emsg == NULL) 142 logit(LOG_CRIT, "fatal in %s: %s", procnames[ospfd_process], 143 strerror(errno)); 144 else 145 if (errno) 146 logit(LOG_CRIT, "fatal in %s: %s: %s", 147 procnames[ospfd_process], emsg, strerror(errno)); 148 else 149 logit(LOG_CRIT, "fatal in %s: %s", 150 procnames[ospfd_process], emsg); 151 152 if (ospfd_process == PROC_MAIN) 153 exit(1); 154 else /* parent copes via SIGCHLD */ 155 _exit(1); 156 } 157 158 void 159 fatalx(const char *emsg) 160 { 161 errno = 0; 162 fatal(emsg); 163 } 164 165 /* names */ 166 const char * 167 nbr_state_name(int state) 168 { 169 switch (state) { 170 case NBR_STA_DOWN: 171 return ("DOWN"); 172 case NBR_STA_ATTEMPT: 173 return ("ATTMP"); 174 case NBR_STA_INIT: 175 return ("INIT"); 176 case NBR_STA_2_WAY: 177 return ("2-WAY"); 178 case NBR_STA_XSTRT: 179 return ("EXSTA"); 180 case NBR_STA_SNAP: 181 return ("SNAP"); 182 case NBR_STA_XCHNG: 183 return ("EXCHG"); 184 case NBR_STA_LOAD: 185 return ("LOAD"); 186 case NBR_STA_FULL: 187 return ("FULL"); 188 default: 189 return ("UNKNW"); 190 } 191 } 192 193 const char * 194 if_state_name(int state) 195 { 196 switch (state) { 197 case IF_STA_DOWN: 198 return ("DOWN"); 199 case IF_STA_LOOPBACK: 200 return ("LOOP"); 201 case IF_STA_WAITING: 202 return ("WAIT"); 203 case IF_STA_POINTTOPOINT: 204 return ("P2P"); 205 case IF_STA_DROTHER: 206 return ("OTHER"); 207 case IF_STA_BACKUP: 208 return ("BCKUP"); 209 case IF_STA_DR: 210 return ("DR"); 211 default: 212 return ("UNKNW"); 213 } 214 } 215 216 const char * 217 if_type_name(enum iface_type type) 218 { 219 switch (type) { 220 case IF_TYPE_POINTOPOINT: 221 return ("POINTOPOINT"); 222 case IF_TYPE_BROADCAST: 223 return ("BROADCAST"); 224 case IF_TYPE_NBMA: 225 return ("NBMA"); 226 case IF_TYPE_POINTOMULTIPOINT: 227 return ("POINTOMULTIPOINT"); 228 case IF_TYPE_VIRTUALLINK: 229 return ("VIRTUALLINK"); 230 } 231 /* NOTREACHED */ 232 return ("UNKNOWN"); 233 } 234 235 const char * 236 if_auth_name(enum auth_type type) 237 { 238 switch (type) { 239 case AUTH_NONE: 240 return ("none"); 241 case AUTH_SIMPLE: 242 return ("simple"); 243 case AUTH_CRYPT: 244 return ("crypt"); 245 } 246 /* NOTREACHED */ 247 return ("unknown"); 248 } 249 250 const char * 251 dst_type_name(enum dst_type type) 252 { 253 switch (type) { 254 case DT_NET: 255 return ("Network"); 256 case DT_RTR: 257 return ("Router"); 258 } 259 /* NOTREACHED */ 260 return ("unknown"); 261 } 262 263 const char * 264 path_type_name(enum path_type type) 265 { 266 switch (type) { 267 case PT_INTRA_AREA: 268 return ("Intra-Area"); 269 case PT_INTER_AREA: 270 return ("Inter-Area"); 271 case PT_TYPE1_EXT: 272 return ("Type 1 ext"); 273 case PT_TYPE2_EXT: 274 return ("Type 2 ext"); 275 } 276 /* NOTREACHED */ 277 return ("unknown"); 278 } 279 280