projects / apple / syslog.git / blame
| Commit | Line | Data |
|---|---|---|
| b16a592a A |
1 | /* |
| 2 | * Copyright (c) 2004 Apple Computer, Inc. All rights reserved. | |
| 3 | * | |
| 4 | * @APPLE_LICENSE_HEADER_START@ | |
| 5 | * | |
| 02b408bf A |
6 | * This file contains Original Code and/or Modifications of Original Code |
| 7 | * as defined in and that are subject to the Apple Public Source License | |
| 8 | * Version 2.0 (the 'License'). You may not use this file except in | |
| 9 | * compliance with the License. Please obtain a copy of the License at | |
| 10 | * http://www.opensource.apple.com/apsl/ and read it before using this | |
| 11 | * file. | |
| b16a592a A |
12 | * |
| 13 | * The Original Code and all software distributed under the License are | |
| 14 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER | |
| 15 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, | |
| 16 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
| 02b408bf A |
17 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. |
| 18 | * Please see the License for the specific language governing rights and | |
| 19 | * limitations under the License. | |
| b16a592a A |
20 | * |
| 21 | * @APPLE_LICENSE_HEADER_END@ | |
| 22 | */ | |
| 23 | ||
| 24 | #include <stdio.h> | |
| 25 | #include <stdlib.h> | |
| 26 | #include <unistd.h> | |
| 27 | #include <ctype.h> | |
| 28 | #include <time.h> | |
| 29 | #include <string.h> | |
| 30 | #include <errno.h> | |
| 31 | #include <sys/socket.h> | |
| 32 | #include <sys/sysctl.h> | |
| 33 | #include <netinet/in.h> | |
| 34 | #include <arpa/inet.h> | |
| 35 | #include <netdb.h> | |
| 36 | #include <notify.h> | |
| 37 | #include <asl.h> | |
| 38 | #include <asl_private.h> | |
| 39 | ||
| 40 | #define MOD_CASE_FOLD 'C' | |
| 41 | #define MOD_REGEX 'R' | |
| 42 | #define MOD_SUBSTRING 'S' | |
| 43 | #define MOD_PREFIX 'A' | |
| 44 | #define MOD_SUFFIX 'Z' | |
| 45 | #define MOD_NUMERIC 'N' | |
| 46 | ||
| 47 | #define OP_EQ "eq" | |
| 48 | #define OP_NE "ne" | |
| 49 | #define OP_GT "gt" | |
| 50 | #define OP_GE "ge" | |
| 51 | #define OP_LT "lt" | |
| 52 | #define OP_LE "le" | |
| 53 | ||
| 54 | #define ASL_QUERY_OP_NOT 0x1000 | |
| 55 | ||
| 56 | #define SEARCH_EOF -1 | |
| 57 | #define SEARCH_NULL 0 | |
| 58 | #define SEARCH_MATCH 1 | |
| 59 | ||
| 60 | #define PROC_NOT_FOUND -1 | |
| 61 | #define PROC_NOT_UNIQUE -2 | |
| 62 | ||
| 63 | #define RC_MASTER -1 | |
| 64 | #define RC_SYSLOGD -2 | |
| 65 | ||
| 66 | #define CHUNK 64 | |
| 67 | #define forever for(;;) | |
| 68 | ||
| 69 | #define SEND_FORMAT_LEGACY 0 | |
| 70 | #define SEND_FORMAT_ASL 1 | |
| 71 | ||
| 72 | #define PRINT_LOCALTIME 0x00000001 | |
| 73 | #define PRINT_LEGACY_FMT 0x00000002 | |
| 74 | #define PRINT_STD_FMT 0x00000004 | |
| 75 | ||
| 76 | #define ASL_FILTER_MASK_PACEWNID 0xff | |
| 77 | #define ASL_FILTER_MASK_PACEWNI 0x7f | |
| 78 | #define ASL_FILTER_MASK_PACEWN 0x3f | |
| 79 | #define ASL_FILTER_MASK_PACEW 0x1f | |
| 80 | #define ASL_FILTER_MASK_PACE 0x0f | |
| 81 | #define ASL_FILTER_MASK_PAC 0x07 | |
| 82 | ||
| 83 | ||
| 84 | /* BEGIN PRIVATE API */ | |
| 85 | #define _PATH_ASL_PRUNE "/var/run/asl_prune" | |
| 86 | #define _PATH_SYSLOGD_PID "/var/run/syslog.pid" | |
| 87 | ||
| 88 | /* notify SPI */ | |
| 89 | uint32_t notify_get_state(int token, int *state); | |
| 90 | uint32_t notify_set_state(int token, int state); | |
| 91 | uint32_t notify_register_plain(const char *name, int *out_token); | |
| 92 | ||
| 93 | extern char *asl_msg_to_string(aslmsg msg, uint32_t *len); | |
| 94 | extern asl_msg_t *asl_msg_from_string(const char *buf); | |
| 95 | extern int asl_msg_cmp(asl_msg_t *a, asl_msg_t *b); | |
| 96 | extern time_t asl_parse_time(const char *in); | |
| 97 | /* END PRIVATE API */ | |
| 98 | ||
| 99 | static const char *myname = "syslog"; | |
| 100 | ||
| 101 | void | |
| 102 | usage() | |
| 103 | { | |
| 104 | fprintf(stderr, "usage:\n"); | |
| 105 | fprintf(stderr, "%s -s [-r host] [-l level] message...\n", myname); | |
| 106 | fprintf(stderr, " send a message\n"); | |
| 107 | fprintf(stderr, "\n"); | |
| 108 | fprintf(stderr, "%s -s [-r host] -k key val [key val]...\n", myname); | |
| 109 | fprintf(stderr, " send a message with the given keys and values\n"); | |
| 110 | fprintf(stderr, "\n"); | |
| 111 | fprintf(stderr, "%s -c process [filter]\n", myname); | |
| 112 | fprintf(stderr, " get (set if filter is specified) syslog filter for process (pid or name)\n"); | |
| 113 | fprintf(stderr, " level may be any combination of the characters \"p a c e w n i d\"\n"); | |
| 114 | fprintf(stderr, " p = Emergency (\"Panic\")\n"); | |
| 115 | fprintf(stderr, " a = Alert\n"); | |
| 116 | fprintf(stderr, " c = Critical\n"); | |
| 117 | fprintf(stderr, " e = Error\n"); | |
| 118 | fprintf(stderr, " w = Warning\n"); | |
| 119 | fprintf(stderr, " n = Notice\n"); | |
| 120 | fprintf(stderr, " i = Info\n"); | |
| 121 | fprintf(stderr, " d = Debug\n"); | |
| 122 | fprintf(stderr, " a minus sign preceeding a single letter means \"up to\" that level\n"); | |
| 123 | fprintf(stderr, "\n"); | |
| 124 | fprintf(stderr, "%s -p [-k key [[op] val]]... [-o -k key [[op] val]] ...]...\n", myname); | |
| 125 | fprintf(stderr, " -p prune datastore according to input expression (see below)\n"); | |
| 126 | fprintf(stderr, "\n"); | |
| 127 | fprintf(stderr, "%s [-w] [-F format] [-u] [-k key [[op] val]]... [-o -k key [[op] val]] ...]...\n", myname); | |
| 128 | fprintf(stderr, " -w watch file (^C to quit)\n"); | |
| 129 | fprintf(stderr, " -F output format may be \"std\", \"raw\", or \"bsd\"\n"); | |
| 130 | fprintf(stderr, " format may also be a string containing variables of the form\n"); | |
| 131 | fprintf(stderr, " $Key or $(Key) - use the latter for non-whitespace delimited variables\n"); | |
| 132 | fprintf(stderr, " -u force printing of all timestamps using UTC\n"); | |
| 133 | fprintf(stderr, " -k key/value match\n"); | |
| 134 | fprintf(stderr, " if no operator or value is given, checks for the existance of the key\n"); | |
| 135 | fprintf(stderr, " if no operator is given, default is \"%s\"\n", OP_EQ); | |
| 136 | fprintf(stderr, " -o begins a new query\n"); | |
| 137 | fprintf(stderr, " queries are \'OR\'ed together\n"); | |
| 138 | fprintf(stderr, "operators are zero or more modifiers followed by a comparison\n"); | |
| 139 | fprintf(stderr, " %s equal\n", OP_EQ); | |
| 140 | fprintf(stderr, " %s not equal\n", OP_NE); | |
| 141 | fprintf(stderr, " %s greater than\n", OP_GT); | |
| 142 | fprintf(stderr, " %s greater or equal\n", OP_GE); | |
| 143 | fprintf(stderr, " %s less than\n", OP_LT); | |
| 144 | fprintf(stderr, " %s less or equal\n", OP_LE); | |
| 145 | fprintf(stderr, "optional modifiers for operators\n"); | |
| 146 | fprintf(stderr, " %c case-fold\n", MOD_CASE_FOLD); | |
| 147 | fprintf(stderr, " %c regular expression\n", MOD_REGEX); | |
| 148 | fprintf(stderr, " %c substring\n", MOD_SUBSTRING); | |
| 149 | fprintf(stderr, " %c prefix\n", MOD_PREFIX); | |
| 150 | fprintf(stderr, " %c suffix\n", MOD_SUFFIX); | |
| 151 | fprintf(stderr, " %c numeric comparison\n", MOD_NUMERIC); | |
| 152 | } | |
| 153 | ||
| 154 | const char * | |
| 155 | notify_status_string(int status) | |
| 156 | { | |
| 157 | if (status == NOTIFY_STATUS_OK) return "OK"; | |
| 158 | if (status == NOTIFY_STATUS_INVALID_NAME) return "Process not registered"; | |
| 159 | if (status == NOTIFY_STATUS_NOT_AUTHORIZED) return "Not authorized"; | |
| 160 | return "Operation failed"; | |
| 161 | } | |
| 162 | ||
| 163 | const char * | |
| 164 | asl_level_string(int level) | |
| 165 | { | |
| 166 | if (level == ASL_LEVEL_EMERG) return ASL_STRING_EMERG; | |
| 167 | if (level == ASL_LEVEL_ALERT) return ASL_STRING_ALERT; | |
| 168 | if (level == ASL_LEVEL_CRIT) return ASL_STRING_CRIT; | |
| 169 | if (level == ASL_LEVEL_ERR) return ASL_STRING_ERR; | |
| 170 | if (level == ASL_LEVEL_WARNING) return ASL_STRING_WARNING; | |
| 171 | if (level == ASL_LEVEL_NOTICE) return ASL_STRING_NOTICE; | |
| 172 | if (level == ASL_LEVEL_INFO) return ASL_STRING_INFO; | |
| 173 | if (level == ASL_LEVEL_DEBUG) return ASL_STRING_DEBUG; | |
| 174 | return "Unknown"; | |
| 175 | } | |
| 176 | ||
| 177 | int | |
| 178 | procinfo(char *pname, int *pid, int *uid) | |
| 179 | { | |
| 180 | int mib[4]; | |
| 181 | int i, status, nprocs; | |
| 182 | size_t miblen, size; | |
| 183 | struct kinfo_proc *procs, *newprocs; | |
| 184 | ||
| 185 | size = 0; | |
| 186 | procs = NULL; | |
| 187 | ||
| 188 | mib[0] = CTL_KERN; | |
| 189 | mib[1] = KERN_PROC; | |
| 190 | mib[2] = KERN_PROC_ALL; | |
| 191 | mib[3] = 0; | |
| 192 | miblen = 3; | |
| 193 | ||
| 194 | status = sysctl(mib, miblen, NULL, &size, NULL, 0); | |
| 195 | do | |
| 196 | { | |
| 197 | size += size / 10; | |
| 198 | newprocs = realloc(procs, size); | |
| 199 | if (newprocs == 0) | |
| 200 | { | |
| 201 | if (procs != NULL) free(procs); | |
| 202 | return PROC_NOT_FOUND; | |
| 203 | } | |
| 204 | ||
| 205 | procs = newprocs; | |
| 206 | status = sysctl(mib, miblen, procs, &size, NULL, 0); | |
| 207 | } while ((status == -1) && (errno == ENOMEM)); | |
| 208 | ||
| 209 | if (status == -1) | |
| 210 | { | |
| 211 | if (procs != NULL) free(procs); | |
| 212 | return PROC_NOT_FOUND; | |
| 213 | } | |
| 214 | ||
| 215 | if (size % sizeof(struct kinfo_proc) != 0) | |
| 216 | { | |
| 217 | if (procs != NULL) free(procs); | |
| 218 | return PROC_NOT_FOUND; | |
| 219 | } | |
| 220 | ||
| 221 | if (procs == NULL) return PROC_NOT_FOUND; | |
| 222 | ||
| 223 | nprocs = size / sizeof(struct kinfo_proc); | |
| 224 | ||
| 225 | if (pname == NULL) | |
| 226 | { | |
| 227 | /* Search for a pid */ | |
| 228 | for (i = 0; i < nprocs; i++) | |
| 229 | { | |
| 230 | if (*pid == procs[i].kp_proc.p_pid) | |
| 231 | { | |
| 232 | *uid = procs[i].kp_eproc.e_ucred.cr_uid; | |
| 233 | return 0; | |
| 234 | } | |
| 235 | } | |
| 236 | ||
| 237 | return PROC_NOT_FOUND; | |
| 238 | } | |
| 239 | ||
| 240 | *pid = PROC_NOT_FOUND; | |
| 241 | ||
| 242 | for (i = 0; i < nprocs; i++) | |
| 243 | { | |
| 244 | if (!strcmp(procs[i].kp_proc.p_comm, pname)) | |
| 245 | { | |
| 246 | if (*pid != PROC_NOT_FOUND) | |
| 247 | { | |
| 248 | free(procs); | |
| 249 | return PROC_NOT_UNIQUE; | |
| 250 | } | |
| 251 | ||
| 252 | *pid = procs[i].kp_proc.p_pid; | |
| 253 | *uid = procs[i].kp_eproc.e_ucred.cr_uid; | |
| 254 | } | |
| 255 | } | |
| 256 | ||
| 257 | free(procs); | |
| 258 | if (*pid == PROC_NOT_FOUND) return PROC_NOT_FOUND; | |
| 259 | ||
| 260 | return 0; | |
| 261 | } | |
| 262 | ||
| 263 | int | |
| 264 | rcontrol_get_string(const char *prefix, int pid, int *val) | |
| 265 | { | |
| 266 | int t, x, status; | |
| 267 | char *name; | |
| 268 | ||
| 269 | status = NOTIFY_STATUS_OK; | |
| 270 | ||
| 271 | if (pid == RC_SYSLOGD) | |
| 272 | { | |
| 273 | status = notify_register_plain(NOTIFY_SYSTEM_ASL_FILTER, &t); | |
| 274 | } | |
| 275 | else if (pid == RC_MASTER) | |
| 276 | { | |
| 277 | status = notify_register_plain(NOTIFY_SYSTEM_MASTER, &t); | |
| 278 | } | |
| 279 | else | |
| 280 | { | |
| 281 | name = NULL; | |
| 282 | asprintf(&name, "%s.%d", prefix, pid); | |
| 283 | if (name == NULL) return NOTIFY_STATUS_FAILED; | |
| 284 | ||
| 285 | status = notify_register_plain(name, &t); | |
| 286 | free(name); | |
| 287 | } | |
| 288 | ||
| 289 | if (status != NOTIFY_STATUS_OK) return status; | |
| 290 | ||
| 291 | x = 0; | |
| 292 | status = notify_get_state(t, &x); | |
| 293 | notify_cancel(t); | |
| 294 | ||
| 295 | *val = x; | |
| 296 | ||
| 297 | return status; | |
| 298 | } | |
| 299 | ||
| 300 | int | |
| 301 | rcontrol_set_string(const char *prefix, int pid, int filter) | |
| 302 | { | |
| 303 | int t, status; | |
| 304 | char *name; | |
| 305 | ||
| 306 | status = NOTIFY_STATUS_OK; | |
| 307 | ||
| 308 | if (pid == RC_SYSLOGD) | |
| 309 | { | |
| 310 | status = notify_register_plain(NOTIFY_SYSTEM_ASL_FILTER, &t); | |
| 311 | } | |
| 312 | else if (pid == RC_MASTER) | |
| 313 | { | |
| 314 | status = notify_register_plain(NOTIFY_SYSTEM_MASTER, &t); | |
| 315 | } | |
| 316 | else | |
| 317 | { | |
| 318 | name = NULL; | |
| 319 | asprintf(&name, "%s.%d", prefix, pid); | |
| 320 | if (name == NULL) return NOTIFY_STATUS_FAILED; | |
| 321 | ||
| 322 | status = notify_register_plain(name, &t); | |
| 323 | free(name); | |
| 324 | } | |
| 325 | ||
| 326 | if (status != NOTIFY_STATUS_OK) return status; | |
| 327 | status = notify_set_state(t, filter); | |
| 328 | if ((pid == RC_SYSLOGD) && (status == NOTIFY_STATUS_OK)) status = notify_post(NOTIFY_SYSTEM_ASL_FILTER); | |
| 329 | notify_cancel(t); | |
| 330 | return status; | |
| 331 | } | |
| 332 | ||
| 333 | int | |
| 334 | asl_string_to_filter(char *s) | |
| 335 | { | |
| 336 | int f, i; | |
| 337 | ||
| 338 | if (s == NULL) return 0; | |
| 339 | if (s[0] == '\0') return 0; | |
| 340 | ||
| 341 | if ((s[0] >= '0') && (s[0] <= '9')) return ASL_FILTER_MASK(atoi(s)); | |
| 342 | ||
| 343 | if (s[0] == '-') | |
| 344 | { | |
| 345 | if ((s[1] == 'P') || (s[1] == 'p')) i = ASL_LEVEL_EMERG; | |
| 346 | else if ((s[1] == 'A') || (s[1] == 'a')) i = ASL_LEVEL_ALERT; | |
| 347 | else if ((s[1] == 'C') || (s[1] == 'c')) i = ASL_LEVEL_CRIT; | |
| 348 | else if ((s[1] == 'E') || (s[1] == 'e')) i = ASL_LEVEL_ERR; | |
| 349 | else if ((s[1] == 'X') || (s[1] == 'x')) i = ASL_LEVEL_ERR; | |
| 350 | else if ((s[1] == 'W') || (s[1] == 'w')) i = ASL_LEVEL_WARNING; | |
| 351 | else if ((s[1] == 'N') || (s[1] == 'n')) i = ASL_LEVEL_NOTICE; | |
| 352 | else if ((s[1] == 'I') || (s[1] == 'i')) i = ASL_LEVEL_INFO; | |
| 353 | else if ((s[1] == 'D') || (s[1] == 'd')) i = ASL_LEVEL_DEBUG; | |
| 354 | else i = atoi(s + 1); | |
| 355 | f = ASL_FILTER_MASK_UPTO(i); | |
| 356 | return f; | |
| 357 | } | |
| 358 | ||
| 359 | f = 0; | |
| 360 | for (i = 0; s[i] != '\0'; i++) | |
| 361 | { | |
| 362 | if ((s[i] == 'P') || (s[i] == 'p')) f |= ASL_FILTER_MASK_EMERG; | |
| 363 | else if ((s[i] == 'A') || (s[i] == 'a')) f |= ASL_FILTER_MASK_ALERT; | |
| 364 | else if ((s[i] == 'C') || (s[i] == 'c')) f |= ASL_FILTER_MASK_CRIT; | |
| 365 | else if ((s[i] == 'E') || (s[i] == 'e')) f |= ASL_FILTER_MASK_ERR; | |
| 366 | else if ((s[i] == 'X') || (s[i] == 'x')) f |= ASL_FILTER_MASK_ERR; | |
| 367 | else if ((s[i] == 'W') || (s[i] == 'w')) f |= ASL_FILTER_MASK_WARNING; | |
| 368 | else if ((s[i] == 'N') || (s[i] == 'n')) f |= ASL_FILTER_MASK_NOTICE; | |
| 369 | else if ((s[i] == 'I') || (s[i] == 'i')) f |= ASL_FILTER_MASK_INFO; | |
| 370 | else if ((s[i] == 'D') || (s[i] == 'd')) f |= ASL_FILTER_MASK_DEBUG; | |
| 371 | } | |
| 372 | ||
| 373 | return f; | |
| 374 | } | |
| 375 | ||
| 376 | char * | |
| 377 | asl_filter_string(int f) | |
| 378 | { | |
| 379 | static char str[1024]; | |
| 380 | int i; | |
| 381 | ||
| 382 | memset(str, 0, sizeof(str)); | |
| 383 | i = 0; | |
| 384 | ||
| 385 | if ((f == ASL_FILTER_MASK_PACEWNID) != 0) | |
| 386 | { | |
| 387 | strcat(str, "Emergency - Debug"); | |
| 388 | return str; | |
| 389 | } | |
| 390 | ||
| 391 | if ((f == ASL_FILTER_MASK_PACEWNI) != 0) | |
| 392 | { | |
| 393 | strcat(str, "Emergency - Info"); | |
| 394 | return str; | |
| 395 | } | |
| 396 | ||
| 397 | if ((f == ASL_FILTER_MASK_PACEWN) != 0) | |
| 398 | { | |
| 399 | strcat(str, "Emergency - Notice"); | |
| 400 | return str; | |
| 401 | } | |
| 402 | ||
| 403 | if ((f == ASL_FILTER_MASK_PACEW) != 0) | |
| 404 | { | |
| 405 | strcat(str, "Emergency - Warning"); | |
| 406 | return str; | |
| 407 | } | |
| 408 | ||
| 409 | if ((f == ASL_FILTER_MASK_PACE) != 0) | |
| 410 | { | |
| 411 | strcat(str, "Emergency - Error"); | |
| 412 | return str; | |
| 413 | } | |
| 414 | ||
| 415 | if ((f == ASL_FILTER_MASK_PAC) != 0) | |
| 416 | { | |
| 417 | strcat(str, "Emergency - Critical"); | |
| 418 | return str; | |
| 419 | } | |
| 420 | ||
| 421 | if ((f & ASL_FILTER_MASK_EMERG) != 0) | |
| 422 | { | |
| 423 | strcat(str, "Emergency"); | |
| 424 | i++; | |
| 425 | } | |
| 426 | ||
| 427 | if ((f & ASL_FILTER_MASK_ALERT) != 0) | |
| 428 | { | |
| 429 | if (i > 0) strcat(str, ", "); | |
| 430 | strcat(str, "Alert"); | |
| 431 | i++; | |
| 432 | } | |
| 433 | ||
| 434 | if ((f & ASL_FILTER_MASK_CRIT) != 0) | |
| 435 | { | |
| 436 | if (i > 0) strcat(str, ", "); | |
| 437 | strcat(str, "Critical"); | |
| 438 | i++; | |
| 439 | } | |
| 440 | ||
| 441 | if ((f & ASL_FILTER_MASK_ERR) != 0) | |
| 442 | { | |
| 443 | if (i > 0) strcat(str, ", "); | |
| 444 | strcat(str, "Error"); | |
| 445 | i++; | |
| 446 | } | |
| 447 | ||
| 448 | if ((f & ASL_FILTER_MASK_WARNING) != 0) | |
| 449 | { | |
| 450 | if (i > 0) strcat(str, ", "); | |
| 451 | strcat(str, "Warning"); | |
| 452 | i++; | |
| 453 | } | |
| 454 | ||
| 455 | if ((f & ASL_FILTER_MASK_NOTICE) != 0) | |
| 456 | { | |
| 457 | if (i > 0) strcat(str, ", "); | |
| 458 | strcat(str, "Notice"); | |
| 459 | i++; | |
| 460 | } | |
| 461 | ||
| 462 | if ((f & ASL_FILTER_MASK_INFO) != 0) | |
| 463 | { | |
| 464 | if (i > 0) strcat(str, ", "); | |
| 465 | strcat(str, "Info"); | |
| 466 | i++; | |
| 467 | } | |
| 468 | ||
| 469 | if ((f & ASL_FILTER_MASK_DEBUG) != 0) | |
| 470 | { | |
| 471 | if (i > 0) strcat(str, ", "); | |
| 472 | strcat(str, "Debug"); | |
| 473 | i++; | |
| 474 | } | |
| 475 | ||
| 476 | if (i == 0) sprintf(str, "Off"); | |
| 477 | ||
| 478 | return str; | |
| 479 | } | |
| 480 | ||
| 481 | int | |
| 482 | rcontrol_get(const char *prefix, int pid) | |
| 483 | { | |
| 484 | int filter, status; | |
| 485 | const char *name; | |
| 486 | ||
| 487 | filter = 0; | |
| 488 | ||
| 489 | if (pid < 0) | |
| 490 | { | |
| 491 | name = "Master"; | |
| 492 | if (pid == RC_SYSLOGD) name = "ASL Data Store"; | |
| 493 | ||
| 494 | status = rcontrol_get_string(NULL, pid, &filter); | |
| 495 | if (status == NOTIFY_STATUS_OK) | |
| 496 | { | |
| 497 | printf("%s filter mask: %s\n", name, asl_filter_string(filter)); | |
| 498 | return 0; | |
| 499 | } | |
| 500 | ||
| 501 | printf("Unable to determine %s filter mask\n", name); | |
| 502 | return -1; | |
| 503 | } | |
| 504 | ||
| 505 | status = rcontrol_get_string(prefix, pid, &filter); | |
| 506 | if (status == NOTIFY_STATUS_OK) | |
| 507 | { | |
| 508 | printf("Process %d syslog filter mask: %s\n", pid, asl_filter_string(filter)); | |
| 509 | return 0; | |
| 510 | } | |
| 511 | ||
| 512 | printf("Unable to determine syslog filter mask for pid %d\n", pid); | |
| 513 | return -1; | |
| 514 | } | |
| 515 | ||
| 516 | int | |
| 517 | rcontrol_set(const char *prefix, int pid, int filter) | |
| 518 | { | |
| 519 | int status; | |
| 520 | const char *name; | |
| 521 | ||
| 522 | if (pid < 0) | |
| 523 | { | |
| 524 | name = "Master"; | |
| 525 | if (pid == RC_SYSLOGD) name = "ASL Data Store"; | |
| 526 | status = rcontrol_set_string(NULL, pid, filter); | |
| 527 | ||
| 528 | if (status == NOTIFY_STATUS_OK) | |
| 529 | { | |
| 530 | printf("Set %s syslog filter mask: %s\n", name, asl_filter_string(filter)); | |
| 531 | return 0; | |
| 532 | } | |
| 533 | ||
| 534 | printf("Unable to set %s syslog filter mask: %s\n", name, notify_status_string(status)); | |
| 535 | return -1; | |
| 536 | } | |
| 537 | ||
| 538 | status = rcontrol_set_string(prefix, pid, filter); | |
| 539 | if (status == NOTIFY_STATUS_OK) | |
| 540 | { | |
| 541 | printf("Set process %d syslog filter mask set: %s\n", pid, asl_filter_string(filter)); | |
| 542 | return 0; | |
| 543 | } | |
| 544 | ||
| 545 | printf("Unable to set syslog filter mask for pid %d: %s\n", pid, notify_status_string(status)); | |
| 546 | return -1; | |
| 547 | } | |
| 548 | ||
| 549 | int | |
| 550 | rsend(aslmsg msg, char *rhost) | |
| 551 | { | |
| 552 | char *str, *out; | |
| 553 | uint32_t len, level; | |
| 554 | char *timestr; | |
| 555 | const char *val; | |
| 556 | time_t tick; | |
| 557 | struct tm gtime; | |
| 558 | int s; | |
| 559 | struct sockaddr_in dst; | |
| 560 | struct hostent *h; | |
| 561 | char myname[MAXHOSTNAMELEN + 1]; | |
| 562 | ||
| 563 | if (msg == NULL) return 0; | |
| 564 | ||
| 565 | h = gethostbyname(rhost); | |
| 566 | if (h == NULL) return -1; | |
| 567 | ||
| 568 | s = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP); | |
| 569 | if (s <= 0) return -1; | |
| 570 | ||
| 571 | memset(&dst, 0, sizeof(struct sockaddr_in)); | |
| 572 | memcpy(&(dst.sin_addr.s_addr), h->h_addr_list[0], 4); | |
| 573 | dst.sin_family = AF_INET; | |
| 574 | dst.sin_port = 514; | |
| 575 | dst.sin_len = sizeof(struct sockaddr_in); | |
| 576 | ||
| 577 | level = ASL_LEVEL_DEBUG; | |
| 578 | ||
| 579 | val = asl_get(msg, ASL_KEY_LEVEL); | |
| 580 | if (val != NULL) level = atoi(val); | |
| 581 | ||
| 582 | memset(>ime, 0, sizeof(struct tm)); | |
| 583 | timestr = NULL; | |
| 584 | ||
| 585 | tick = time(NULL); | |
| 586 | gmtime_r(&tick, >ime); | |
| 587 | ||
| 588 | /* Canonical form: YYYY.MM.DD hh:mm:ss UTC */ | |
| 589 | asprintf(×tr, "%d.%02d.%02d %02d:%02d:%02d UTC", gtime.tm_year + 1900, gtime.tm_mon + 1, gtime.tm_mday, gtime.tm_hour, gtime.tm_min, gtime.tm_sec); | |
| 590 | ||
| 591 | if (timestr != NULL) | |
| 592 | { | |
| 593 | asl_set(msg, ASL_KEY_TIME, timestr); | |
| 594 | free(timestr); | |
| 595 | } | |
| 596 | ||
| 597 | if (gethostname(myname, MAXHOSTNAMELEN) == 0) asl_set(msg, ASL_KEY_HOST, myname); | |
| 598 | ||
| 599 | len = 0; | |
| 600 | str = asl_msg_to_string(msg, &len); | |
| 601 | if (str == NULL) return -1; | |
| 602 | ||
| 603 | asprintf(&out, "%10u %s\n", len+1, str); | |
| 604 | free(str); | |
| 605 | if (out == NULL) return -1; | |
| 606 | ||
| 607 | sendto(s, out, len+12, 0, (const struct sockaddr *)&dst, sizeof(struct sockaddr_in)); | |
| 608 | ||
| 609 | free(out); | |
| 610 | close(s); | |
| 611 | return 0; | |
| 612 | } | |
| 613 | ||
| 614 | int | |
| 615 | rlegacy(char *msg, int level, char *rhost) | |
| 616 | { | |
| 617 | char *out; | |
| 618 | uint32_t len; | |
| 619 | time_t tick; | |
| 620 | char *ltime; | |
| 621 | int s; | |
| 622 | struct sockaddr_in dst; | |
| 623 | struct hostent *h; | |
| 624 | char myname[MAXHOSTNAMELEN + 1]; | |
| 625 | ||
| 626 | if (msg == NULL) return 0; | |
| 627 | ||
| 628 | h = gethostbyname(rhost); | |
| 629 | if (h == NULL) return -1; | |
| 630 | ||
| 631 | s = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP); | |
| 632 | if (s <= 0) return -1; | |
| 633 | ||
| 634 | memset(&dst, 0, sizeof(struct sockaddr_in)); | |
| 635 | memcpy(&(dst.sin_addr.s_addr), h->h_addr_list[0], 4); | |
| 636 | dst.sin_family = AF_INET; | |
| 637 | dst.sin_port = 514; | |
| 638 | dst.sin_len = sizeof(struct sockaddr_in); | |
| 639 | ||
| 640 | tick = time(NULL); | |
| 641 | ltime = ctime(&tick); | |
| 642 | ltime[19] = '\0'; | |
| 643 | ||
| 644 | gethostname(myname, MAXHOSTNAMELEN); | |
| 645 | ||
| 646 | asprintf(&out, "<%d>%s %s syslog[%d]: %s", level, ltime+4, myname, getpid(), msg); | |
| 647 | len = strlen(out); | |
| 648 | sendto(s, out, len, 0, (const struct sockaddr *)&dst, sizeof(struct sockaddr_in)); | |
| 649 | ||
| 650 | free(out); | |
| 651 | close(s); | |
| 652 | return 0; | |
| 653 | } | |
| 654 | ||
| 655 | static int | |
| 656 | _isanumber(char *s) | |
| 657 | { | |
| 658 | int i; | |
| 659 | ||
| 660 | if (s == NULL) return 0; | |
| 661 | ||
| 662 | i = 0; | |
| 663 | if ((s[0] == '-') || (s[0] == '+')) i = 1; | |
| 664 | ||
| 665 | if (s[i] == '\0') return 0; | |
| 666 | ||
| 667 | for (; s[i] != '\0'; i++) | |
| 668 | { | |
| 669 | if (!isdigit(s[i])) return 0; | |
| 670 | } | |
| 671 | ||
| 672 | return 1; | |
| 673 | } | |
| 674 | ||
| 675 | int | |
| 676 | asl_string_to_level(const char *s) | |
| 677 | { | |
| 678 | if (s == NULL) return -1; | |
| 679 | ||
| 680 | if ((s[0] >= '0') && (s[0] <= '7') && (s[1] == '\0')) return atoi(s); | |
| 681 | ||
| 682 | if (!strncasecmp(s, "em", 2)) return ASL_LEVEL_EMERG; | |
| 683 | else if (!strncasecmp(s, "p", 1)) return ASL_LEVEL_EMERG; | |
| 684 | else if (!strncasecmp(s, "a", 1)) return ASL_LEVEL_ALERT; | |
| 685 | else if (!strncasecmp(s, "c", 1)) return ASL_LEVEL_CRIT; | |
| 686 | else if (!strncasecmp(s, "er", 2)) return ASL_LEVEL_ERR; | |
| 687 | else if (!strncasecmp(s, "x", 1)) return ASL_LEVEL_ERR; | |
| 688 | else if (!strncasecmp(s, "w", 1)) return ASL_LEVEL_WARNING; | |
| 689 | else if (!strncasecmp(s, "n", 1)) return ASL_LEVEL_NOTICE; | |
| 690 | else if (!strncasecmp(s, "i", 1)) return ASL_LEVEL_INFO; | |
| 691 | else if (!strncasecmp(s, "d", 1)) return ASL_LEVEL_DEBUG; | |
| 692 | ||
| 693 | return -1; | |
| 694 | } | |
| 695 | ||
| 696 | int | |
| 697 | syslog_remote_control(int argc, char *argv[]) | |
| 698 | { | |
| 699 | int pid, uid, status, mask; | |
| 700 | const char *prefix; | |
| 701 | ||
| 702 | if ((argc < 3) || (argc > 4)) | |
| 703 | { | |
| 704 | fprintf(stderr, "usage:\n"); | |
| 705 | fprintf(stderr, "%s -c process [mask]\n", myname); | |
| 706 | fprintf(stderr, " get (set if mask is specified) syslog filter mask for process (pid or name)\n"); | |
| 707 | fprintf(stderr, " process may be pid or process name\n"); | |
| 708 | fprintf(stderr, " use \"-c 0\" to get master syslog filter mask\n"); | |
| 709 | fprintf(stderr, " use \"-c 0 off\" to disable master syslog filter mask\n"); | |
| 710 | fprintf(stderr, "\n"); | |
| 711 | return -1; | |
| 712 | } | |
| 713 | ||
| 714 | pid = RC_MASTER; | |
| 715 | uid = -2; | |
| 716 | ||
| 717 | status = PROC_NOT_FOUND; | |
| 718 | ||
| 719 | if ((!strcmp(argv[2], "syslogd")) || (!strcmp(argv[2], "syslog"))) | |
| 720 | { | |
| 721 | pid = RC_SYSLOGD; | |
| 722 | uid = 0; | |
| 723 | status = 0; | |
| 724 | } | |
| 725 | else if (_isanumber(argv[2]) != 0) | |
| 726 | { | |
| 727 | pid = atoi(argv[2]); | |
| 728 | status = procinfo(NULL, &pid, &uid); | |
| 729 | } | |
| 730 | else | |
| 731 | { | |
| 732 | status = procinfo(argv[2], &pid, &uid); | |
| 733 | } | |
| 734 | ||
| 735 | if (status == PROC_NOT_FOUND) | |
| 736 | { | |
| 737 | fprintf(stderr, "%s: process not found\n", argv[2]); | |
| 738 | return -1; | |
| 739 | } | |
| 740 | ||
| 741 | if (status == PROC_NOT_UNIQUE) | |
| 742 | { | |
| 743 | fprintf(stderr, "%s: multiple processes found\n", argv[2]); | |
| 744 | fprintf(stderr, "use pid to identify a process uniquely\n"); | |
| 745 | return -1; | |
| 746 | } | |
| 747 | ||
| 748 | if (pid == 0) pid = RC_MASTER; | |
| 749 | ||
| 750 | prefix = NOTIFY_PREFIX_USER; | |
| 751 | if (uid == 0) prefix = NOTIFY_PREFIX_SYSTEM; | |
| 752 | ||
| 753 | if (argc == 4) | |
| 754 | { | |
| 755 | if ((pid == RC_MASTER) && (!strcasecmp(argv[3], "off"))) mask = 0; | |
| 756 | else if ((pid == RC_SYSLOGD) && (!strcasecmp(argv[3], "off"))) mask = 0; | |
| 757 | else | |
| 758 | { | |
| 759 | mask = asl_string_to_filter(argv[3]); | |
| 760 | if (mask < 0) | |
| 761 | { | |
| 762 | printf("unknown syslog mask: %s\n", argv[3]); | |
| 763 | return -1; | |
| 764 | } | |
| 765 | } | |
| 766 | ||
| 767 | rcontrol_set(prefix, pid, mask); | |
| 768 | } | |
| 769 | else | |
| 770 | { | |
| 771 | rcontrol_get(prefix, pid); | |
| 772 | } | |
| 773 | ||
| 774 | return 0; | |
| 775 | } | |
| 776 | ||
| 777 | int | |
| 778 | syslog_send(int argc, char *argv[]) | |
| 779 | { | |
| 780 | int i, start, kv, len, rfmt, rlevel; | |
| 781 | aslclient asl; | |
| 782 | aslmsg m; | |
| 783 | char tmp[64], *str, *rhost; | |
| 784 | ||
| 785 | kv = 0; | |
| 786 | rhost = NULL; | |
| 787 | rfmt = SEND_FORMAT_ASL; | |
| 788 | start = 1; | |
| 789 | rlevel = 7; | |
| 790 | ||
| 791 | for (i = 1; i < argc; i++) | |
| 792 | { | |
| 793 | if (!strcmp(argv[i], "-s")) start = i+1; | |
| 794 | else if (!strcmp(argv[i], "-k")) kv = 1; | |
| 795 | else if (!strcmp(argv[i], "-r")) | |
| 796 | { | |
| 797 | rhost = argv[++i]; | |
| 798 | start = i+1; | |
| 799 | rfmt = SEND_FORMAT_LEGACY; | |
| 800 | } | |
| 801 | else if (!strcmp(argv[i], "-R")) | |
| 802 | { | |
| 803 | rhost = argv[++i]; | |
| 804 | start = i+1; | |
| 805 | } | |
| 806 | else if (!strcmp(argv[i], "-l")) | |
| 807 | { | |
| 808 | rlevel = asl_string_to_level(argv[++i]); | |
| 809 | if (rlevel < 0) | |
| 810 | { | |
| 811 | fprintf(stderr, "Unknown level: %s\n", argv[i]); | |
| 812 | return(-1); | |
| 813 | } | |
| 814 | start = i+1; | |
| 815 | } | |
| 816 | } | |
| 817 | ||
| 818 | asl = asl_open(myname, "syslog", 0); | |
| 819 | asl_set_filter(asl, ASL_FILTER_MASK_UPTO(ASL_LEVEL_DEBUG)); | |
| 820 | ||
| 821 | m = asl_new(ASL_TYPE_MSG); | |
| 822 | asl_set(m, ASL_KEY_SENDER, myname); | |
| 823 | ||
| 824 | sprintf(tmp, "%d", rlevel); | |
| 825 | asl_set(m, ASL_KEY_LEVEL, tmp); | |
| 826 | ||
| 827 | str = NULL; | |
| 828 | ||
| 829 | if (kv == 0) | |
| 830 | { | |
| 831 | len = 0; | |
| 832 | for (i = start; i < argc; i++) len += (strlen(argv[i]) + 1); | |
| 833 | str = calloc(len + 1, 1); | |
| 834 | for (i = start; i < argc; i++) | |
| 835 | { | |
| 836 | strcat(str, argv[i]); | |
| 837 | if ((i+1) < argc) strcat(str, " "); | |
| 838 | } | |
| 839 | asl_set(m, ASL_KEY_MSG, str); | |
| 840 | } | |
| 841 | else | |
| 842 | { | |
| 843 | for (i = start + 1; i < argc; i += 2) asl_set(m, argv[i], argv[i + 1]); | |
| 844 | } | |
| 845 | ||
| 846 | if (rhost == NULL) | |
| 847 | { | |
| 848 | asl_send(asl, m); | |
| 849 | } | |
| 850 | else if (rfmt == SEND_FORMAT_ASL) | |
| 851 | { | |
| 852 | rsend(m, rhost); | |
| 853 | } | |
| 854 | else if ((rfmt == SEND_FORMAT_LEGACY) && (str != NULL)) | |
| 855 | { | |
| 856 | rlegacy(str, rlevel, rhost); | |
| 857 | } | |
| 858 | ||
| 859 | asl_free(m); | |
| 860 | ||
| 861 | if (str != NULL) free(str); | |
| 862 | ||
| 863 | asl_close(asl); | |
| 864 | ||
| 865 | return 0; | |
| 866 | } | |
| 867 | ||
| 868 | static void | |
| 869 | printmsg(FILE *f, asl_msg_t *msg, char *mstr, char *fmt, int pflags) | |
| 870 | { | |
| 871 | char *k, *t, c; | |
| 872 | const char *v; | |
| 873 | int i, j, l, paren, oval; | |
| 874 | time_t tick; | |
| 875 | ||
| 876 | if ((pflags & PRINT_STD_FMT) || (pflags & PRINT_LEGACY_FMT)) | |
| 877 | { | |
| 878 | /* LEGACY: Mth dd hh:mm:ss host sender[pid]: message */ | |
| 879 | /* STD: Mth dd hh:mm:ss host sender[pid] <Level>: message */ | |
| 880 | ||
| 881 | /* Time */ | |
| 882 | v = asl_get(msg, ASL_KEY_TIME); | |
| 883 | tick = 0; | |
| 884 | if (v == NULL) | |
| 885 | { | |
| 886 | fprintf(f, "***Time unknown "); | |
| 887 | } | |
| 888 | else | |
| 889 | { | |
| 890 | tick = asl_parse_time(v); | |
| 891 | t = ctime(&tick); | |
| 892 | if (t == NULL) fprintf(f, "***Time unknown "); | |
| 893 | else | |
| 894 | { | |
| 895 | t[19] = '\0'; | |
| 896 | fprintf(f, "%s ", t + 4); | |
| 897 | } | |
| 898 | } | |
| 899 | ||
| 900 | /* Host */ | |
| 901 | v = asl_get(msg, ASL_KEY_HOST); | |
| 902 | if (v != NULL) fprintf(f, "%s ", v); | |
| 903 | ||
| 904 | /* Sender */ | |
| 905 | v = asl_get(msg, ASL_KEY_SENDER); | |
| 906 | if (v != NULL) fprintf(f, "%s", v); | |
| 907 | ||
| 908 | /* PID */ | |
| 909 | v = asl_get(msg, ASL_KEY_PID); | |
| 910 | if ((v != NULL) && (v[0] != '-')) fprintf(f, "[%s]", v); | |
| 911 | ||
| 912 | v = asl_get(msg, ASL_KEY_LEVEL); | |
| 913 | i = -1; | |
| 914 | if (_isanumber((char *)v)) i = atoi(v); | |
| 915 | if (pflags & PRINT_STD_FMT) fprintf(f, " <%s>", asl_level_string(i)); | |
| 916 | ||
| 917 | fprintf(f, ": "); | |
| 918 | ||
| 919 | /* Message */ | |
| 920 | v = asl_get(msg, ASL_KEY_MSG); | |
| 921 | if (v != NULL) fprintf(f, "%s", v); | |
| 922 | ||
| 923 | fprintf(f, "\n"); | |
| 924 | return; | |
| 925 | } | |
| 926 | ||
| 927 | if (fmt == NULL) | |
| 928 | { | |
| 929 | fprintf(f, "%s\n", mstr); | |
| 930 | return; | |
| 931 | } | |
| 932 | ||
| 933 | for (i = 0; fmt[i] != '\0'; i++) | |
| 934 | { | |
| 935 | if (fmt[i] == '$') | |
| 936 | { | |
| 937 | i++; | |
| 938 | paren = 0; | |
| 939 | ||
| 940 | if (fmt[i] == '(') | |
| 941 | { | |
| 942 | paren = 1; | |
| 943 | i++; | |
| 944 | } | |
| 945 | ||
| 946 | k = calloc(1, 1); | |
| 947 | l = 0; | |
| 948 | ||
| 949 | for (j = i; fmt[j] != '\0'; j++) | |
| 950 | { | |
| 951 | c = '\0'; | |
| 952 | if (fmt[j] == '\\') c = fmt[++j]; | |
| 953 | else if ((paren == 1) && (fmt[j] ==')')) break; | |
| 954 | else if (fmt[j] != ' ') c = fmt[j]; | |
| 955 | ||
| 956 | if (c == '\0') break; | |
| 957 | ||
| 958 | k = realloc(k, l + 1); | |
| 959 | k[l] = c; | |
| 960 | k[l + 1] = '\0'; | |
| 961 | l++; | |
| 962 | } | |
| 963 | ||
| 964 | if (paren == 1) j++; | |
| 965 | i = j; | |
| 966 | if (l > 0) | |
| 967 | { | |
| 968 | v = asl_get(msg, k); | |
| 969 | if (v != NULL) | |
| 970 | { | |
| 971 | if ((pflags & PRINT_LOCALTIME) && (!strcmp(k, ASL_KEY_TIME))) | |
| 972 | { | |
| 973 | /* convert UTC time to localtime */ | |
| 974 | tick = asl_parse_time(v); | |
| 975 | t = ctime(&tick); | |
| 976 | if (t == NULL) fprintf(f, "%s", v); | |
| 977 | else | |
| 978 | { | |
| 979 | t[19] = '\0'; | |
| 980 | fprintf(f, "%s", t + 4); | |
| 981 | } | |
| 982 | } | |
| 983 | else | |
| 984 | { | |
| 985 | fprintf(f, "%s", v); | |
| 986 | } | |
| 987 | } | |
| 988 | } | |
| 989 | free(k); | |
| 990 | } | |
| 991 | ||
| 992 | if (fmt[i] == '\\') | |
| 993 | { | |
| 994 | i++; | |
| 995 | if (fmt[i] == '$') fprintf(f, "$"); | |
| 996 | else if (fmt[i] == 'e') fprintf(f, "\e"); | |
| 997 | else if (fmt[i] == 'a') fprintf(f, "\a"); | |
| 998 | else if (fmt[i] == 'b') fprintf(f, "\b"); | |
| 999 | else if (fmt[i] == 'f') fprintf(f, "\f"); | |
| 1000 | else if (fmt[i] == 'n') fprintf(f, "\n"); | |
| 1001 | else if (fmt[i] == 'r') fprintf(f, "\r"); | |
| 1002 | else if (fmt[i] == 't') fprintf(f, "\t"); | |
| 1003 | else if (fmt[i] == 'v') fprintf(f, "\v"); | |
| 1004 | else if (fmt[i] == '\'') fprintf(f, "\'"); | |
| 1005 | else if (fmt[i] == '\\') fprintf(f, "\\"); | |
| 1006 | else if (isdigit(fmt[i])) | |
| 1007 | { | |
| 1008 | oval = fmt[i] - '0'; | |
| 1009 | if (isdigit(fmt[i+1])) | |
| 1010 | { | |
| 1011 | i++; | |
| 1012 | oval = (oval * 8) + (fmt[i] - '0'); | |
| 1013 | if (isdigit(fmt[i+1])) | |
| 1014 | { | |
| 1015 | i++; | |
| 1016 | oval = (oval * 8) + (fmt[i] - '0'); | |
| 1017 | } | |
| 1018 | } | |
| 1019 | c = oval; | |
| 1020 | fputc(c, stdout); | |
| 1021 | } | |
| 1022 | continue; | |
| 1023 | } | |
| 1024 | ||
| 1025 | if (fmt[i] == '\0') break; | |
| 1026 | fputc(fmt[i], stdout); | |
| 1027 | } | |
| 1028 | ||
| 1029 | fprintf(f, "\n"); | |
| 1030 | } | |
| 1031 | ||
| 1032 | static char * | |
| 1033 | getnextline(FILE *fp, int watch) | |
| 1034 | { | |
| 1035 | char *out, c; | |
| 1036 | int len, count; | |
| 1037 | ||
| 1038 | len = CHUNK; | |
| 1039 | count = 0; | |
| 1040 | out = calloc(len + 1, 1); | |
| 1041 | ||
| 1042 | forever | |
| 1043 | { | |
| 1044 | c = getc(fp); | |
| 1045 | if (c == EOF) | |
| 1046 | { | |
| 1047 | if (watch == 0) | |
| 1048 | { | |
| 1049 | if (count == 0) | |
| 1050 | { | |
| 1051 | free(out); | |
| 1052 | return NULL; | |
| 1053 | } | |
| 1054 | return out; | |
| 1055 | } | |
| 1056 | clearerr(fp); | |
| 1057 | usleep(250000); | |
| 1058 | continue; | |
| 1059 | } | |
| 1060 | ||
| 1061 | if (c == '\n') return out; | |
| 1062 | if (c == '\0') return out; | |
| 1063 | ||
| 1064 | if (count == len) | |
| 1065 | { | |
| 1066 | len += CHUNK; | |
| 1067 | out = realloc(out, len + 1); | |
| 1068 | } | |
| 1069 | ||
| 1070 | out[count++] = c; | |
| 1071 | out[count] = '\0'; | |
| 1072 | } | |
| 1073 | ||
| 1074 | return NULL; | |
| 1075 | } | |
| 1076 | ||
| 1077 | int | |
| 1078 | search_next(asl_msg_t **q, int nq, FILE *log, int watch, aslmsg *outmsg, char **outstr) | |
| 1079 | { | |
| 1080 | char *str; | |
| 1081 | aslmsg m; | |
| 1082 | int i, match; | |
| 1083 | ||
| 1084 | *outmsg = NULL; | |
| 1085 | *outstr = NULL; | |
| 1086 | ||
| 1087 | if (log == NULL) return SEARCH_EOF; | |
| 1088 | ||
| 1089 | str = getnextline(log, watch); | |
| 1090 | if (str == NULL) return SEARCH_EOF; | |
| 1091 | ||
| 1092 | m = asl_msg_from_string(str); | |
| 1093 | if (m == NULL) | |
| 1094 | { | |
| 1095 | free(str); | |
| 1096 | return SEARCH_NULL; | |
| 1097 | } | |
| 1098 | ||
| 1099 | match = 0; | |
| 1100 | if (q == NULL) match = 1; | |
| 1101 | for (i = 0; (i < nq) && (match == 0); i++) | |
| 1102 | { | |
| 1103 | match = asl_msg_cmp(q[i], m); | |
| 1104 | if ((q[i]->count > 0) && (q[i]->op[0] & ASL_QUERY_OP_NOT)) | |
| 1105 | { | |
| 1106 | match = !match; | |
| 1107 | } | |
| 1108 | } | |
| 1109 | ||
| 1110 | if (match == 0) | |
| 1111 | { | |
| 1112 | free(str); | |
| 1113 | asl_free(m); | |
| 1114 | return SEARCH_NULL; | |
| 1115 | } | |
| 1116 | ||
| 1117 | *outmsg = m; | |
| 1118 | *outstr = str; | |
| 1119 | return SEARCH_MATCH; | |
| 1120 | } | |
| 1121 | ||
| 1122 | uint32_t | |
| 1123 | optype(char *o) | |
| 1124 | { | |
| 1125 | uint32_t op, i; | |
| 1126 | ||
| 1127 | op = ASL_QUERY_OP_NULL; | |
| 1128 | ||
| 1129 | if (o == NULL) return op; | |
| 1130 | ||
| 1131 | for (i = 0; o[i] != '\0'; i++) | |
| 1132 | { | |
| 1133 | if (o[i] == MOD_CASE_FOLD) op |= ASL_QUERY_OP_CASEFOLD; | |
| 1134 | else if (o[i] == MOD_REGEX) op |= ASL_QUERY_OP_REGEX; | |
| 1135 | else if (o[i] == MOD_NUMERIC) op |= ASL_QUERY_OP_NUMERIC; | |
| 1136 | else if (o[i] == MOD_SUBSTRING) op |= ASL_QUERY_OP_SUBSTRING; | |
| 1137 | else if (o[i] == MOD_PREFIX) op |= ASL_QUERY_OP_PREFIX; | |
| 1138 | else if (o[i] == MOD_SUFFIX) op |= ASL_QUERY_OP_SUFFIX; | |
| 1139 | ||
| 1140 | else if (!strncasecmp(o+i, OP_EQ, sizeof(OP_EQ))) | |
| 1141 | { | |
| 1142 | op |= ASL_QUERY_OP_EQUAL; | |
| 1143 | i += (sizeof(OP_EQ) - 2); | |
| 1144 | } | |
| 1145 | else if (!strncasecmp(o+i, OP_NE, sizeof(OP_NE))) | |
| 1146 | { | |
| 1147 | op |= ASL_QUERY_OP_NOT_EQUAL; | |
| 1148 | i += (sizeof(OP_NE) - 2); | |
| 1149 | } | |
| 1150 | else if (!strncasecmp(o+i, OP_GT, sizeof(OP_GT))) | |
| 1151 | { | |
| 1152 | op |= ASL_QUERY_OP_GREATER; | |
| 1153 | i += (sizeof(OP_GT) - 2); | |
| 1154 | } | |
| 1155 | else if (!strncasecmp(o+i, OP_GE, sizeof(OP_GE))) | |
| 1156 | { | |
| 1157 | op |= ASL_QUERY_OP_GREATER_EQUAL; | |
| 1158 | i += (sizeof(OP_GE) - 2); | |
| 1159 | } | |
| 1160 | else if (!strncasecmp(o+i, OP_LT, sizeof(OP_LT))) | |
| 1161 | { | |
| 1162 | op |= ASL_QUERY_OP_LESS; | |
| 1163 | i += (sizeof(OP_LT) - 2); | |
| 1164 | } | |
| 1165 | else if (!strncasecmp(o+i, OP_LE, sizeof(OP_LE))) | |
| 1166 | { | |
| 1167 | op |= ASL_QUERY_OP_LESS_EQUAL; | |
| 1168 | i += (sizeof(OP_LE) - 2); | |
| 1169 | } | |
| 1170 | else | |
| 1171 | { | |
| 1172 | fprintf(stderr, "invalid option: %s\n", o); | |
| 1173 | return 0; | |
| 1174 | } | |
| 1175 | } | |
| 1176 | ||
| 1177 | /* sanity check */ | |
| 1178 | if (op & ASL_QUERY_OP_NUMERIC) | |
| 1179 | { | |
| 1180 | if (op & ASL_QUERY_OP_CASEFOLD) | |
| 1181 | { | |
| 1182 | fprintf(stderr, "warning: case fold modifier has no effect with numeric comparisons\n"); | |
| 1183 | op &= ~ASL_QUERY_OP_CASEFOLD; | |
| 1184 | } | |
| 1185 | ||
| 1186 | if (op & ASL_QUERY_OP_REGEX) | |
| 1187 | { | |
| 1188 | fprintf(stderr, "warning: regex modifier has no effect with numeric comparisons\n"); | |
| 1189 | op &= ~ASL_QUERY_OP_REGEX; | |
| 1190 | } | |
| 1191 | ||
| 1192 | if (op & ASL_QUERY_OP_SUBSTRING) | |
| 1193 | { | |
| 1194 | fprintf(stderr, "warning: substring modifier has no effect with numeric comparisons\n"); | |
| 1195 | op &= ~ASL_QUERY_OP_SUBSTRING; | |
| 1196 | } | |
| 1197 | ||
| 1198 | if (op & ASL_QUERY_OP_PREFIX) | |
| 1199 | { | |
| 1200 | fprintf(stderr, "warning: prefix modifier has no effect with numeric comparisons\n"); | |
| 1201 | op &= ~ASL_QUERY_OP_PREFIX; | |
| 1202 | } | |
| 1203 | ||
| 1204 | if (op & ASL_QUERY_OP_SUFFIX) | |
| 1205 | { | |
| 1206 | fprintf(stderr, "warning: suffix modifier has no effect with numeric comparisons\n"); | |
| 1207 | op &= ~ASL_QUERY_OP_SUFFIX; | |
| 1208 | } | |
| 1209 | } | |
| 1210 | ||
| 1211 | if (op & ASL_QUERY_OP_REGEX) | |
| 1212 | { | |
| 1213 | if (op & ASL_QUERY_OP_SUBSTRING) | |
| 1214 | { | |
| 1215 | fprintf(stderr, "warning: substring modifier has no effect with regular expression comparisons\n"); | |
| 1216 | op &= ~ASL_QUERY_OP_SUBSTRING; | |
| 1217 | } | |
| 1218 | ||
| 1219 | if (op & ASL_QUERY_OP_PREFIX) | |
| 1220 | { | |
| 1221 | fprintf(stderr, "warning: prefix modifier has no effect with regular expression comparisons\n"); | |
| 1222 | op &= ~ASL_QUERY_OP_PREFIX; | |
| 1223 | } | |
| 1224 | ||
| 1225 | if (op & ASL_QUERY_OP_SUFFIX) | |
| 1226 | { | |
| 1227 | fprintf(stderr, "warning: suffix modifier has no effect with regular expression comparisons\n"); | |
| 1228 | op &= ~ASL_QUERY_OP_SUFFIX; | |
| 1229 | } | |
| 1230 | } | |
| 1231 | ||
| 1232 | return op; | |
| 1233 | } | |
| 1234 | ||
| 1235 | int | |
| 1236 | add_op(asl_msg_t *q, char *key, char *op, char *val, uint32_t flags) | |
| 1237 | { | |
| 1238 | uint32_t o; | |
| 1239 | ||
| 1240 | if (key == NULL) return -1; | |
| 1241 | if (q == NULL) return -1; | |
| 1242 | ||
| 1243 | o = ASL_QUERY_OP_NULL; | |
| 1244 | if (op != NULL) | |
| 1245 | { | |
| 1246 | o = optype(op); | |
| 1247 | if (o == ASL_QUERY_OP_NULL) return -1; | |
| 1248 | if (val == NULL) | |
| 1249 | { | |
| 1250 | fprintf(stderr, "no value supplied for operator %s %s\n", key, op); | |
| 1251 | return -1; | |
| 1252 | } | |
| 1253 | ||
| 1254 | if ((o & ASL_QUERY_OP_NUMERIC) && (_isanumber(val) == 0)) | |
| 1255 | { | |
| 1256 | fprintf(stderr, "non-numeric value supplied for numeric operator %s %s %s\n", key, op, val); | |
| 1257 | return -1; | |
| 1258 | } | |
| 1259 | ||
| 1260 | } | |
| 1261 | ||
| 1262 | o |= flags; | |
| 1263 | asl_set_query(q, key, val, o); | |
| 1264 | ||
| 1265 | return 0; | |
| 1266 | } | |
| 1267 | ||
| 1268 | int | |
| 1269 | main(int argc, char *argv[]) | |
| 1270 | { | |
| 1271 | FILE *log, *pf, *outfile; | |
| 1272 | int i, j, n, qcount, qn, watch, prune, status, pflags, tflag; | |
| 1273 | asl_msg_t **qlist, *outmsg; | |
| 1274 | char *logname, *outname, *pfmt, *outstr; | |
| 1275 | pid_t syslogd_pid; | |
| 1276 | uint32_t flags; | |
| 1277 | ||
| 1278 | qn = 0; | |
| 1279 | watch = 0; | |
| 1280 | prune = 0; | |
| 1281 | logname = _PATH_ASL_OUT; | |
| 1282 | qlist = NULL; | |
| 1283 | qcount = 0; | |
| 1284 | pfmt = NULL; | |
| 1285 | flags = 0; | |
| 1286 | pflags = PRINT_STD_FMT; | |
| 1287 | tflag = PRINT_LOCALTIME; | |
| 1288 | ||
| 1289 | for (i = 1; i < argc; i++) | |
| 1290 | { | |
| 1291 | if (!strcmp(argv[i], "-s")) | |
| 1292 | { | |
| 1293 | syslog_send(argc, argv); | |
| 1294 | exit(0); | |
| 1295 | } | |
| 1296 | ||
| 1297 | if (!strcmp(argv[i], "-c")) | |
| 1298 | { | |
| 1299 | syslog_remote_control(argc, argv); | |
| 1300 | exit(0); | |
| 1301 | } | |
| 1302 | } | |
| 1303 | ||
| 1304 | for (i = 1; i < argc; i++) | |
| 1305 | { | |
| 1306 | if ((!strcmp(argv[i], "-help")) || (!strcmp(argv[i], "--help"))) | |
| 1307 | { | |
| 1308 | usage(); | |
| 1309 | exit(0); | |
| 1310 | } | |
| 1311 | else if (!strcmp(argv[i], "-w")) | |
| 1312 | { | |
| 1313 | watch = 1; | |
| 1314 | } | |
| 1315 | else if (!strcmp(argv[i], "-u")) | |
| 1316 | { | |
| 1317 | tflag = 0; | |
| 1318 | } | |
| 1319 | else if (!strcmp(argv[i], "-p")) | |
| 1320 | { | |
| 1321 | prune = 1; | |
| 1322 | } | |
| 1323 | else if (!strcmp(argv[i], "-f")) | |
| 1324 | { | |
| 1325 | if ((i + 1) >= argc) | |
| 1326 | { | |
| 1327 | usage(); | |
| 1328 | exit(1); | |
| 1329 | } | |
| 1330 | ||
| 1331 | logname = argv[++i]; | |
| 1332 | } | |
| 1333 | else if (!strcmp(argv[i], "-F")) | |
| 1334 | { | |
| 1335 | if ((i + 1) >= argc) | |
| 1336 | { | |
| 1337 | usage(); | |
| 1338 | exit(1); | |
| 1339 | } | |
| 1340 | ||
| 1341 | i++; | |
| 1342 | if (!strcmp(argv[i], "raw")) | |
| 1343 | { | |
| 1344 | pflags = 0; | |
| 1345 | tflag = 0; | |
| 1346 | } | |
| 1347 | else if (!strcmp(argv[i], "std")) | |
| 1348 | { | |
| 1349 | pflags = PRINT_STD_FMT; | |
| 1350 | } | |
| 1351 | else if (!strcmp(argv[i], "bsd")) | |
| 1352 | { | |
| 1353 | pflags = PRINT_LEGACY_FMT; | |
| 1354 | } | |
| 1355 | else | |
| 1356 | { | |
| 1357 | pflags = 0; | |
| 1358 | pfmt = argv[i]; | |
| 1359 | } | |
| 1360 | } | |
| 1361 | else if (!strcmp(argv[i], "-o")) | |
| 1362 | { | |
| 1363 | flags = 0; | |
| 1364 | ||
| 1365 | if (qlist == NULL) | |
| 1366 | { | |
| 1367 | qlist = (asl_msg_t **)calloc(1, sizeof(asl_msg_t *)); | |
| 1368 | } | |
| 1369 | else | |
| 1370 | { | |
| 1371 | qlist = (asl_msg_t **)realloc(qlist, (qcount + 1) * sizeof(asl_msg_t *)); | |
| 1372 | } | |
| 1373 | ||
| 1374 | qcount++; | |
| 1375 | qn = qcount - 1; | |
| 1376 | qlist[qn] = asl_new(ASL_TYPE_QUERY); | |
| 1377 | } | |
| 1378 | else if (!strcmp(argv[i], "-n")) | |
| 1379 | { | |
| 1380 | flags = ASL_QUERY_OP_NOT; | |
| 1381 | } | |
| 1382 | else if (!strcmp(argv[i], "-k")) | |
| 1383 | { | |
| 1384 | i++; | |
| 1385 | for (n = i; n < argc; n++) | |
| 1386 | { | |
| 1387 | if (!strcmp(argv[n], "-o")) break; | |
| 1388 | if (!strcmp(argv[n], "-n")) break; | |
| 1389 | if (!strcmp(argv[n], "-k")) break; | |
| 1390 | if ((n - i) > 2) | |
| 1391 | { | |
| 1392 | fprintf(stderr, "invalid sequence: -k"); | |
| 1393 | for (j = i; j <= n; j++) fprintf(stderr, " %s", argv[j]); | |
| 1394 | fprintf(stderr, "\n"); | |
| 1395 | usage(); | |
| 1396 | exit(1); | |
| 1397 | } | |
| 1398 | } | |
| 1399 | ||
| 1400 | n -= i; | |
| 1401 | if (n == 0) | |
| 1402 | { | |
| 1403 | i--; | |
| 1404 | continue; | |
| 1405 | } | |
| 1406 | ||
| 1407 | if (qlist == NULL) | |
| 1408 | { | |
| 1409 | qlist = (asl_msg_t **)calloc(1, sizeof(asl_msg_t *)); | |
| 1410 | qcount = 1; | |
| 1411 | qn = 0; | |
| 1412 | qlist[qn] = asl_new(ASL_TYPE_QUERY); | |
| 1413 | } | |
| 1414 | ||
| 1415 | status = 0; | |
| 1416 | if (n == 1) status = add_op(qlist[qn], argv[i], NULL, NULL, flags); | |
| 1417 | else if (n == 2) status = add_op(qlist[qn], argv[i], OP_EQ, argv[i+1], flags); | |
| 1418 | else status = add_op(qlist[qn], argv[i], argv[i+1], argv[i+2], flags); | |
| 1419 | ||
| 1420 | flags = 0; | |
| 1421 | if (status != 0) exit(1); | |
| 1422 | } | |
| 1423 | } | |
| 1424 | ||
| 1425 | pflags |= tflag; | |
| 1426 | ||
| 1427 | if (prune == 1) | |
| 1428 | { | |
| 1429 | if (watch == 1) | |
| 1430 | { | |
| 1431 | fprintf(stderr, "-w flag has no effect when pruning log file\n"); | |
| 1432 | } | |
| 1433 | ||
| 1434 | if (getuid() != 0) | |
| 1435 | { | |
| 1436 | fprintf(stderr, "you must be root to prune the log file\n"); | |
| 1437 | exit(1); | |
| 1438 | } | |
| 1439 | ||
| 1440 | if (qlist == NULL) | |
| 1441 | { | |
| 1442 | fprintf(stderr, "no queries for pruning\n"); | |
| 1443 | exit(0); | |
| 1444 | } | |
| 1445 | ||
| 1446 | pf = fopen(_PATH_SYSLOGD_PID, "r"); | |
| 1447 | if (pf == NULL) | |
| 1448 | { | |
| 1449 | perror(_PATH_SYSLOGD_PID); | |
| 1450 | exit(1); | |
| 1451 | } | |
| 1452 | ||
| 1453 | status = fscanf(pf, "%d", &syslogd_pid); | |
| 1454 | fclose(pf); | |
| 1455 | if (status != 1) | |
| 1456 | { | |
| 1457 | fprintf(stderr, "can't read syslogd pid from %s\n", _PATH_SYSLOGD_PID); | |
| 1458 | exit(1); | |
| 1459 | } | |
| 1460 | ||
| 1461 | unlink(_PATH_ASL_PRUNE); | |
| 1462 | pf = fopen(_PATH_ASL_PRUNE, "w"); | |
| 1463 | if (pf == NULL) | |
| 1464 | { | |
| 1465 | perror(_PATH_ASL_PRUNE); | |
| 1466 | exit(1); | |
| 1467 | } | |
| 1468 | ||
| 1469 | for (i = 0; i < qcount; i++) | |
| 1470 | { | |
| 1471 | outstr = asl_msg_to_string(qlist[i], &j); | |
| 1472 | fprintf(pf, "%s\n", outstr); | |
| 1473 | free(outstr); | |
| 1474 | } | |
| 1475 | ||
| 1476 | fclose(pf); | |
| 1477 | ||
| 1478 | kill(syslogd_pid, SIGWINCH); | |
| 1479 | ||
| 1480 | exit(0); | |
| 1481 | } | |
| 1482 | ||
| 1483 | log = NULL; | |
| 1484 | ||
| 1485 | if (!strcmp(logname, "-")) log = stdin; | |
| 1486 | else log = fopen(logname, "r"); | |
| 1487 | ||
| 1488 | if (log == NULL) | |
| 1489 | { | |
| 1490 | perror(logname); | |
| 1491 | exit(1); | |
| 1492 | } | |
| 1493 | ||
| 1494 | if (watch == 1) fseek(log, 0, SEEK_END); | |
| 1495 | outname = NULL; | |
| 1496 | outfile = stdout; | |
| 1497 | ||
| 1498 | do | |
| 1499 | { | |
| 1500 | outmsg = NULL; | |
| 1501 | outstr = NULL; | |
| 1502 | status = search_next(qlist, qcount, log, watch, &outmsg, &outstr); | |
| 1503 | ||
| 1504 | if (status == SEARCH_MATCH) | |
| 1505 | { | |
| 1506 | printmsg(outfile, outmsg, outstr, pfmt, pflags); | |
| 1507 | } | |
| 1508 | ||
| 1509 | if (outstr != NULL) free(outstr); | |
| 1510 | if (outmsg != NULL) asl_free(outmsg); | |
| 1511 | } | |
| 1512 | while (status != SEARCH_EOF); | |
| 1513 | ||
| 1514 | fclose(log); | |
| 1515 | ||
| 1516 | for (i = 0; i < qcount; i++) asl_free(qlist[i]); | |
| 1517 | if (qlist != NULL) free(qlist); | |
| 1518 | ||
| 1519 | exit(0); | |
| 1520 | } |