1 /* $OpenBSD: log.c,v 1.5 2014/11/03 20:15:31 bluhm 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 "ripd.h" 28 #include "log.h" 29 30 static const char * const procnames[] = { 31 "parent", 32 "ripe", 33 "rde" 34 }; 35 36 int debug; 37 int verbose; 38 39 void 40 log_init(int n_debug) 41 { 42 extern char *__progname; 43 44 debug = n_debug; 45 46 if (!debug) 47 openlog(__progname, LOG_PID | LOG_NDELAY, LOG_DAEMON); 48 49 tzset(); 50 } 51 52 void 53 log_verbose(int v) 54 { 55 verbose = v; 56 } 57 58 void 59 logit(int pri, const char *fmt, ...) 60 { 61 va_list ap; 62 63 va_start(ap, fmt); 64 vlog(pri, fmt, ap); 65 va_end(ap); 66 } 67 68 void 69 vlog(int pri, const char *fmt, va_list ap) 70 { 71 char *nfmt; 72 73 if (debug) { 74 /* best effort in out of mem situations */ 75 if (asprintf(&nfmt, "%s\n", fmt) == -1) { 76 vfprintf(stderr, fmt, ap); 77 fprintf(stderr, "\n"); 78 } else { 79 vfprintf(stderr, nfmt, ap); 80 free(nfmt); 81 } 82 fflush(stderr); 83 } else 84 vsyslog(pri, fmt, ap); 85 } 86 87 void 88 log_warn(const char *emsg, ...) 89 { 90 char *nfmt; 91 va_list ap; 92 93 /* best effort to even work in out of memory situations */ 94 if (emsg == NULL) 95 logit(LOG_CRIT, "%s", strerror(errno)); 96 else { 97 va_start(ap, emsg); 98 99 if (asprintf(&nfmt, "%s: %s", emsg, strerror(errno)) == -1) { 100 /* we tried it... */ 101 vlog(LOG_CRIT, emsg, ap); 102 logit(LOG_CRIT, "%s", strerror(errno)); 103 } else { 104 vlog(LOG_CRIT, nfmt, ap); 105 free(nfmt); 106 } 107 va_end(ap); 108 } 109 } 110 111 void 112 log_warnx(const char *emsg, ...) 113 { 114 va_list ap; 115 116 va_start(ap, emsg); 117 vlog(LOG_CRIT, emsg, ap); 118 va_end(ap); 119 } 120 121 void 122 log_info(const char *emsg, ...) 123 { 124 va_list ap; 125 126 va_start(ap, emsg); 127 vlog(LOG_INFO, emsg, ap); 128 va_end(ap); 129 } 130 131 void 132 log_debug(const char *emsg, ...) 133 { 134 va_list ap; 135 136 if (verbose) { 137 va_start(ap, emsg); 138 vlog(LOG_DEBUG, emsg, ap); 139 va_end(ap); 140 } 141 } 142 143 void 144 fatal(const char *emsg) 145 { 146 if (emsg == NULL) 147 logit(LOG_CRIT, "fatal in %s: %s", procnames[ripd_process], 148 strerror(errno)); 149 else 150 if (errno) 151 logit(LOG_CRIT, "fatal in %s: %s: %s", 152 procnames[ripd_process], emsg, strerror(errno)); 153 else 154 logit(LOG_CRIT, "fatal in %s: %s", 155 procnames[ripd_process], emsg); 156 157 if (ripd_process == PROC_MAIN) 158 exit(1); 159 else /* parent copes via SIGCHLD */ 160 _exit(1); 161 } 162 163 void 164 fatalx(const char *emsg) 165 { 166 errno = 0; 167 fatal(emsg); 168 } 169 170 /* names */ 171 const char * 172 nbr_state_name(int state) 173 { 174 switch (state) { 175 case NBR_STA_DOWN: 176 return ("DOWN"); 177 case NBR_STA_REQ_RCVD: 178 return ("REQUEST RCVD"); 179 case NBR_STA_ACTIVE: 180 return ("ACTIVE"); 181 default: 182 return ("UNKNOWN"); 183 } 184 } 185 186 const char * 187 if_type_name(enum iface_type type) 188 { 189 switch (type) { 190 case IF_TYPE_POINTOPOINT: 191 return ("POINTOPOINT"); 192 case IF_TYPE_BROADCAST: 193 return ("BROADCAST"); 194 case IF_TYPE_NBMA: 195 return ("NBMA"); 196 case IF_TYPE_POINTOMULTIPOINT: 197 return ("POINTOMULTIPOINT"); 198 } 199 /* NOTREACHED */ 200 return ("UNKNOWN"); 201 } 202 203 const char * 204 if_auth_name(enum auth_type type) 205 { 206 switch (type) { 207 case AUTH_NONE: 208 return ("none"); 209 case AUTH_SIMPLE: 210 return ("simple"); 211 case AUTH_CRYPT: 212 return ("crypt"); 213 } 214 /* NOTREACHED */ 215 return ("unknown"); 216 } 217 218 const char * 219 if_state_name(int state) 220 { 221 switch (state) { 222 case IF_STA_DOWN: 223 return ("DOWN"); 224 case IF_STA_ACTIVE: 225 return ("ACTIVE"); 226 default: 227 return ("UNKNOWN"); 228 } 229 } 230