Tristan Matthews | 0461646 | 2013-11-14 16:09:34 -0500 | [diff] [blame] | 1 | /************************************************* |
| 2 | * pcregrep program * |
| 3 | *************************************************/ |
| 4 | |
| 5 | /* This is a grep program that uses the PCRE regular expression library to do |
| 6 | its pattern matching. On a Unix or Win32 system it can recurse into |
| 7 | directories. |
| 8 | |
| 9 | Copyright (c) 1997-2011 University of Cambridge |
| 10 | |
| 11 | ----------------------------------------------------------------------------- |
| 12 | Redistribution and use in source and binary forms, with or without |
| 13 | modification, are permitted provided that the following conditions are met: |
| 14 | |
| 15 | * Redistributions of source code must retain the above copyright notice, |
| 16 | this list of conditions and the following disclaimer. |
| 17 | |
| 18 | * Redistributions in binary form must reproduce the above copyright |
| 19 | notice, this list of conditions and the following disclaimer in the |
| 20 | documentation and/or other materials provided with the distribution. |
| 21 | |
| 22 | * Neither the name of the University of Cambridge nor the names of its |
| 23 | contributors may be used to endorse or promote products derived from |
| 24 | this software without specific prior written permission. |
| 25 | |
| 26 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| 27 | AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 28 | IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 29 | ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
| 30 | LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 31 | CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 32 | SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 33 | INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| 34 | CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 35 | ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 36 | POSSIBILITY OF SUCH DAMAGE. |
| 37 | ----------------------------------------------------------------------------- |
| 38 | */ |
| 39 | |
| 40 | #ifdef HAVE_CONFIG_H |
| 41 | #include "config.h" |
| 42 | #endif |
| 43 | |
| 44 | #include <ctype.h> |
| 45 | #include <locale.h> |
| 46 | #include <stdio.h> |
| 47 | #include <string.h> |
| 48 | #include <stdlib.h> |
| 49 | #include <errno.h> |
| 50 | |
| 51 | #include <sys/types.h> |
| 52 | #include <sys/stat.h> |
| 53 | |
| 54 | #ifdef HAVE_UNISTD_H |
| 55 | #include <unistd.h> |
| 56 | #endif |
| 57 | |
| 58 | #ifdef SUPPORT_LIBZ |
| 59 | #include <zlib.h> |
| 60 | #endif |
| 61 | |
| 62 | #ifdef SUPPORT_LIBBZ2 |
| 63 | #include <bzlib.h> |
| 64 | #endif |
| 65 | |
| 66 | #include "pcre.h" |
| 67 | |
| 68 | #define FALSE 0 |
| 69 | #define TRUE 1 |
| 70 | |
| 71 | typedef int BOOL; |
| 72 | |
| 73 | #define MAX_PATTERN_COUNT 100 |
| 74 | #define OFFSET_SIZE 99 |
| 75 | |
| 76 | #if BUFSIZ > 8192 |
| 77 | #define PATBUFSIZE BUFSIZ |
| 78 | #else |
| 79 | #define PATBUFSIZE 8192 |
| 80 | #endif |
| 81 | |
| 82 | /* Values for the "filenames" variable, which specifies options for file name |
| 83 | output. The order is important; it is assumed that a file name is wanted for |
| 84 | all values greater than FN_DEFAULT. */ |
| 85 | |
| 86 | enum { FN_NONE, FN_DEFAULT, FN_MATCH_ONLY, FN_NOMATCH_ONLY, FN_FORCE }; |
| 87 | |
| 88 | /* File reading styles */ |
| 89 | |
| 90 | enum { FR_PLAIN, FR_LIBZ, FR_LIBBZ2 }; |
| 91 | |
| 92 | /* Actions for the -d and -D options */ |
| 93 | |
| 94 | enum { dee_READ, dee_SKIP, dee_RECURSE }; |
| 95 | enum { DEE_READ, DEE_SKIP }; |
| 96 | |
| 97 | /* Actions for special processing options (flag bits) */ |
| 98 | |
| 99 | #define PO_WORD_MATCH 0x0001 |
| 100 | #define PO_LINE_MATCH 0x0002 |
| 101 | #define PO_FIXED_STRINGS 0x0004 |
| 102 | |
| 103 | /* Line ending types */ |
| 104 | |
| 105 | enum { EL_LF, EL_CR, EL_CRLF, EL_ANY, EL_ANYCRLF }; |
| 106 | |
| 107 | /* In newer versions of gcc, with FORTIFY_SOURCE set (the default in some |
| 108 | environments), a warning is issued if the value of fwrite() is ignored. |
| 109 | Unfortunately, casting to (void) does not suppress the warning. To get round |
| 110 | this, we use a macro that compiles a fudge. Oddly, this does not also seem to |
| 111 | apply to fprintf(). */ |
| 112 | |
| 113 | #define FWRITE(a,b,c,d) if (fwrite(a,b,c,d)) {} |
| 114 | |
| 115 | |
| 116 | |
| 117 | /************************************************* |
| 118 | * Global variables * |
| 119 | *************************************************/ |
| 120 | |
| 121 | /* Jeffrey Friedl has some debugging requirements that are not part of the |
| 122 | regular code. */ |
| 123 | |
| 124 | #ifdef JFRIEDL_DEBUG |
| 125 | static int S_arg = -1; |
| 126 | static unsigned int jfriedl_XR = 0; /* repeat regex attempt this many times */ |
| 127 | static unsigned int jfriedl_XT = 0; /* replicate text this many times */ |
| 128 | static const char *jfriedl_prefix = ""; |
| 129 | static const char *jfriedl_postfix = ""; |
| 130 | #endif |
| 131 | |
| 132 | static int endlinetype; |
| 133 | |
| 134 | static char *colour_string = (char *)"1;31"; |
| 135 | static char *colour_option = NULL; |
| 136 | static char *dee_option = NULL; |
| 137 | static char *DEE_option = NULL; |
| 138 | static char *main_buffer = NULL; |
| 139 | static char *newline = NULL; |
| 140 | static char *pattern_filename = NULL; |
| 141 | static char *stdin_name = (char *)"(standard input)"; |
| 142 | static char *locale = NULL; |
| 143 | |
| 144 | static const unsigned char *pcretables = NULL; |
| 145 | |
| 146 | static int pattern_count = 0; |
| 147 | static pcre **pattern_list = NULL; |
| 148 | static pcre_extra **hints_list = NULL; |
| 149 | |
| 150 | static char *include_pattern = NULL; |
| 151 | static char *exclude_pattern = NULL; |
| 152 | static char *include_dir_pattern = NULL; |
| 153 | static char *exclude_dir_pattern = NULL; |
| 154 | |
| 155 | static pcre *include_compiled = NULL; |
| 156 | static pcre *exclude_compiled = NULL; |
| 157 | static pcre *include_dir_compiled = NULL; |
| 158 | static pcre *exclude_dir_compiled = NULL; |
| 159 | |
| 160 | static int after_context = 0; |
| 161 | static int before_context = 0; |
| 162 | static int both_context = 0; |
| 163 | static int bufthird = PCREGREP_BUFSIZE; |
| 164 | static int bufsize = 3*PCREGREP_BUFSIZE; |
| 165 | static int dee_action = dee_READ; |
| 166 | static int DEE_action = DEE_READ; |
| 167 | static int error_count = 0; |
| 168 | static int filenames = FN_DEFAULT; |
| 169 | static int only_matching = -1; |
| 170 | static int process_options = 0; |
| 171 | |
| 172 | #ifdef SUPPORT_PCREGREP_JIT |
| 173 | static int study_options = PCRE_STUDY_JIT_COMPILE; |
| 174 | #else |
| 175 | static int study_options = 0; |
| 176 | #endif |
| 177 | |
| 178 | static unsigned long int match_limit = 0; |
| 179 | static unsigned long int match_limit_recursion = 0; |
| 180 | |
| 181 | static BOOL count_only = FALSE; |
| 182 | static BOOL do_colour = FALSE; |
| 183 | static BOOL file_offsets = FALSE; |
| 184 | static BOOL hyphenpending = FALSE; |
| 185 | static BOOL invert = FALSE; |
| 186 | static BOOL line_buffered = FALSE; |
| 187 | static BOOL line_offsets = FALSE; |
| 188 | static BOOL multiline = FALSE; |
| 189 | static BOOL number = FALSE; |
| 190 | static BOOL omit_zero_count = FALSE; |
| 191 | static BOOL resource_error = FALSE; |
| 192 | static BOOL quiet = FALSE; |
| 193 | static BOOL silent = FALSE; |
| 194 | static BOOL utf8 = FALSE; |
| 195 | |
| 196 | /* Structure for options and list of them */ |
| 197 | |
| 198 | enum { OP_NODATA, OP_STRING, OP_OP_STRING, OP_NUMBER, OP_LONGNUMBER, |
| 199 | OP_OP_NUMBER, OP_PATLIST }; |
| 200 | |
| 201 | typedef struct option_item { |
| 202 | int type; |
| 203 | int one_char; |
| 204 | void *dataptr; |
| 205 | const char *long_name; |
| 206 | const char *help_text; |
| 207 | } option_item; |
| 208 | |
| 209 | /* Options without a single-letter equivalent get a negative value. This can be |
| 210 | used to identify them. */ |
| 211 | |
| 212 | #define N_COLOUR (-1) |
| 213 | #define N_EXCLUDE (-2) |
| 214 | #define N_EXCLUDE_DIR (-3) |
| 215 | #define N_HELP (-4) |
| 216 | #define N_INCLUDE (-5) |
| 217 | #define N_INCLUDE_DIR (-6) |
| 218 | #define N_LABEL (-7) |
| 219 | #define N_LOCALE (-8) |
| 220 | #define N_NULL (-9) |
| 221 | #define N_LOFFSETS (-10) |
| 222 | #define N_FOFFSETS (-11) |
| 223 | #define N_LBUFFER (-12) |
| 224 | #define N_M_LIMIT (-13) |
| 225 | #define N_M_LIMIT_REC (-14) |
| 226 | #define N_BUFSIZE (-15) |
| 227 | #define N_NOJIT (-16) |
| 228 | |
| 229 | static option_item optionlist[] = { |
| 230 | { OP_NODATA, N_NULL, NULL, "", " terminate options" }, |
| 231 | { OP_NODATA, N_HELP, NULL, "help", "display this help and exit" }, |
| 232 | { OP_NUMBER, 'A', &after_context, "after-context=number", "set number of following context lines" }, |
| 233 | { OP_NUMBER, 'B', &before_context, "before-context=number", "set number of prior context lines" }, |
| 234 | { OP_NUMBER, N_BUFSIZE,&bufthird, "buffer-size=number", "set processing buffer size parameter" }, |
| 235 | { OP_OP_STRING, N_COLOUR, &colour_option, "color=option", "matched text color option" }, |
| 236 | { OP_OP_STRING, N_COLOUR, &colour_option, "colour=option", "matched text colour option" }, |
| 237 | { OP_NUMBER, 'C', &both_context, "context=number", "set number of context lines, before & after" }, |
| 238 | { OP_NODATA, 'c', NULL, "count", "print only a count of matching lines per FILE" }, |
| 239 | { OP_STRING, 'D', &DEE_option, "devices=action","how to handle devices, FIFOs, and sockets" }, |
| 240 | { OP_STRING, 'd', &dee_option, "directories=action", "how to handle directories" }, |
| 241 | { OP_PATLIST, 'e', NULL, "regex(p)=pattern", "specify pattern (may be used more than once)" }, |
| 242 | { OP_NODATA, 'F', NULL, "fixed-strings", "patterns are sets of newline-separated strings" }, |
| 243 | { OP_STRING, 'f', &pattern_filename, "file=path", "read patterns from file" }, |
| 244 | { OP_NODATA, N_FOFFSETS, NULL, "file-offsets", "output file offsets, not text" }, |
| 245 | { OP_NODATA, 'H', NULL, "with-filename", "force the prefixing filename on output" }, |
| 246 | { OP_NODATA, 'h', NULL, "no-filename", "suppress the prefixing filename on output" }, |
| 247 | { OP_NODATA, 'i', NULL, "ignore-case", "ignore case distinctions" }, |
| 248 | #ifdef SUPPORT_PCREGREP_JIT |
| 249 | { OP_NODATA, N_NOJIT, NULL, "no-jit", "do not use just-in-time compiler optimization" }, |
| 250 | #else |
| 251 | { OP_NODATA, N_NOJIT, NULL, "no-jit", "ignored: this pcregrep does not support JIT" }, |
| 252 | #endif |
| 253 | { OP_NODATA, 'l', NULL, "files-with-matches", "print only FILE names containing matches" }, |
| 254 | { OP_NODATA, 'L', NULL, "files-without-match","print only FILE names not containing matches" }, |
| 255 | { OP_STRING, N_LABEL, &stdin_name, "label=name", "set name for standard input" }, |
| 256 | { OP_NODATA, N_LBUFFER, NULL, "line-buffered", "use line buffering" }, |
| 257 | { OP_NODATA, N_LOFFSETS, NULL, "line-offsets", "output line numbers and offsets, not text" }, |
| 258 | { OP_STRING, N_LOCALE, &locale, "locale=locale", "use the named locale" }, |
| 259 | { OP_LONGNUMBER, N_M_LIMIT, &match_limit, "match-limit=number", "set PCRE match limit option" }, |
| 260 | { OP_LONGNUMBER, N_M_LIMIT_REC, &match_limit_recursion, "recursion-limit=number", "set PCRE match recursion limit option" }, |
| 261 | { OP_NODATA, 'M', NULL, "multiline", "run in multiline mode" }, |
| 262 | { OP_STRING, 'N', &newline, "newline=type", "set newline type (CR, LF, CRLF, ANYCRLF or ANY)" }, |
| 263 | { OP_NODATA, 'n', NULL, "line-number", "print line number with output lines" }, |
| 264 | { OP_OP_NUMBER, 'o', &only_matching, "only-matching=n", "show only the part of the line that matched" }, |
| 265 | { OP_NODATA, 'q', NULL, "quiet", "suppress output, just set return code" }, |
| 266 | { OP_NODATA, 'r', NULL, "recursive", "recursively scan sub-directories" }, |
| 267 | { OP_STRING, N_EXCLUDE,&exclude_pattern, "exclude=pattern","exclude matching files when recursing" }, |
| 268 | { OP_STRING, N_INCLUDE,&include_pattern, "include=pattern","include matching files when recursing" }, |
| 269 | { OP_STRING, N_EXCLUDE_DIR,&exclude_dir_pattern, "exclude-dir=pattern","exclude matching directories when recursing" }, |
| 270 | { OP_STRING, N_INCLUDE_DIR,&include_dir_pattern, "include-dir=pattern","include matching directories when recursing" }, |
| 271 | |
| 272 | /* These two were accidentally implemented with underscores instead of |
| 273 | hyphens in the option names. As this was not discovered for several releases, |
| 274 | the incorrect versions are left in the table for compatibility. However, the |
| 275 | --help function misses out any option that has an underscore in its name. */ |
| 276 | |
| 277 | { OP_STRING, N_EXCLUDE_DIR,&exclude_dir_pattern, "exclude_dir=pattern","exclude matching directories when recursing" }, |
| 278 | { OP_STRING, N_INCLUDE_DIR,&include_dir_pattern, "include_dir=pattern","include matching directories when recursing" }, |
| 279 | |
| 280 | #ifdef JFRIEDL_DEBUG |
| 281 | { OP_OP_NUMBER, 'S', &S_arg, "jeffS", "replace matched (sub)string with X" }, |
| 282 | #endif |
| 283 | { OP_NODATA, 's', NULL, "no-messages", "suppress error messages" }, |
| 284 | { OP_NODATA, 'u', NULL, "utf-8", "use UTF-8 mode" }, |
| 285 | { OP_NODATA, 'V', NULL, "version", "print version information and exit" }, |
| 286 | { OP_NODATA, 'v', NULL, "invert-match", "select non-matching lines" }, |
| 287 | { OP_NODATA, 'w', NULL, "word-regex(p)", "force patterns to match only as words" }, |
| 288 | { OP_NODATA, 'x', NULL, "line-regex(p)", "force patterns to match only whole lines" }, |
| 289 | { OP_NODATA, 0, NULL, NULL, NULL } |
| 290 | }; |
| 291 | |
| 292 | /* Tables for prefixing and suffixing patterns, according to the -w, -x, and -F |
| 293 | options. These set the 1, 2, and 4 bits in process_options, respectively. Note |
| 294 | that the combination of -w and -x has the same effect as -x on its own, so we |
| 295 | can treat them as the same. */ |
| 296 | |
| 297 | static const char *prefix[] = { |
| 298 | "", "\\b", "^(?:", "^(?:", "\\Q", "\\b\\Q", "^(?:\\Q", "^(?:\\Q" }; |
| 299 | |
| 300 | static const char *suffix[] = { |
| 301 | "", "\\b", ")$", ")$", "\\E", "\\E\\b", "\\E)$", "\\E)$" }; |
| 302 | |
| 303 | /* UTF-8 tables - used only when the newline setting is "any". */ |
| 304 | |
| 305 | const int utf8_table3[] = { 0xff, 0x1f, 0x0f, 0x07, 0x03, 0x01}; |
| 306 | |
| 307 | const char utf8_table4[] = { |
| 308 | 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, |
| 309 | 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, |
| 310 | 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, |
| 311 | 3,3,3,3,3,3,3,3,4,4,4,4,5,5,5,5 }; |
| 312 | |
| 313 | |
| 314 | |
| 315 | /************************************************* |
| 316 | * Exit from the program * |
| 317 | *************************************************/ |
| 318 | |
| 319 | /* If there has been a resource error, give a suitable message. |
| 320 | |
| 321 | Argument: the return code |
| 322 | Returns: does not return |
| 323 | */ |
| 324 | |
| 325 | static void |
| 326 | pcregrep_exit(int rc) |
| 327 | { |
| 328 | if (resource_error) |
| 329 | { |
| 330 | fprintf(stderr, "pcregrep: Error %d, %d or %d means that a resource limit " |
| 331 | "was exceeded.\n", PCRE_ERROR_MATCHLIMIT, PCRE_ERROR_RECURSIONLIMIT, |
| 332 | PCRE_ERROR_JIT_STACKLIMIT); |
| 333 | fprintf(stderr, "pcregrep: Check your regex for nested unlimited loops.\n"); |
| 334 | } |
| 335 | |
| 336 | exit(rc); |
| 337 | } |
| 338 | |
| 339 | |
| 340 | /************************************************* |
| 341 | * OS-specific functions * |
| 342 | *************************************************/ |
| 343 | |
| 344 | /* These functions are defined so that they can be made system specific, |
| 345 | although at present the only ones are for Unix, Win32, and for "no support". */ |
| 346 | |
| 347 | |
| 348 | /************* Directory scanning in Unix ***********/ |
| 349 | |
| 350 | #if defined HAVE_SYS_STAT_H && defined HAVE_DIRENT_H && defined HAVE_SYS_TYPES_H |
| 351 | #include <sys/types.h> |
| 352 | #include <sys/stat.h> |
| 353 | #include <dirent.h> |
| 354 | |
| 355 | typedef DIR directory_type; |
| 356 | |
| 357 | static int |
| 358 | isdirectory(char *filename) |
| 359 | { |
| 360 | struct stat statbuf; |
| 361 | if (stat(filename, &statbuf) < 0) |
| 362 | return 0; /* In the expectation that opening as a file will fail */ |
| 363 | return ((statbuf.st_mode & S_IFMT) == S_IFDIR)? '/' : 0; |
| 364 | } |
| 365 | |
| 366 | static directory_type * |
| 367 | opendirectory(char *filename) |
| 368 | { |
| 369 | return opendir(filename); |
| 370 | } |
| 371 | |
| 372 | static char * |
| 373 | readdirectory(directory_type *dir) |
| 374 | { |
| 375 | for (;;) |
| 376 | { |
| 377 | struct dirent *dent = readdir(dir); |
| 378 | if (dent == NULL) return NULL; |
| 379 | if (strcmp(dent->d_name, ".") != 0 && strcmp(dent->d_name, "..") != 0) |
| 380 | return dent->d_name; |
| 381 | } |
| 382 | /* Control never reaches here */ |
| 383 | } |
| 384 | |
| 385 | static void |
| 386 | closedirectory(directory_type *dir) |
| 387 | { |
| 388 | closedir(dir); |
| 389 | } |
| 390 | |
| 391 | |
| 392 | /************* Test for regular file in Unix **********/ |
| 393 | |
| 394 | static int |
| 395 | isregfile(char *filename) |
| 396 | { |
| 397 | struct stat statbuf; |
| 398 | if (stat(filename, &statbuf) < 0) |
| 399 | return 1; /* In the expectation that opening as a file will fail */ |
| 400 | return (statbuf.st_mode & S_IFMT) == S_IFREG; |
| 401 | } |
| 402 | |
| 403 | |
| 404 | /************* Test for a terminal in Unix **********/ |
| 405 | |
| 406 | static BOOL |
| 407 | is_stdout_tty(void) |
| 408 | { |
| 409 | return isatty(fileno(stdout)); |
| 410 | } |
| 411 | |
| 412 | static BOOL |
| 413 | is_file_tty(FILE *f) |
| 414 | { |
| 415 | return isatty(fileno(f)); |
| 416 | } |
| 417 | |
| 418 | |
| 419 | /************* Directory scanning in Win32 ***********/ |
| 420 | |
| 421 | /* I (Philip Hazel) have no means of testing this code. It was contributed by |
| 422 | Lionel Fourquaux. David Burgess added a patch to define INVALID_FILE_ATTRIBUTES |
| 423 | when it did not exist. David Byron added a patch that moved the #include of |
| 424 | <windows.h> to before the INVALID_FILE_ATTRIBUTES definition rather than after. |
| 425 | The double test below stops gcc 4.4.4 grumbling that HAVE_WINDOWS_H is |
| 426 | undefined when it is indeed undefined. */ |
| 427 | |
| 428 | #elif defined HAVE_WINDOWS_H && HAVE_WINDOWS_H |
| 429 | |
| 430 | #ifndef STRICT |
| 431 | # define STRICT |
| 432 | #endif |
| 433 | #ifndef WIN32_LEAN_AND_MEAN |
| 434 | # define WIN32_LEAN_AND_MEAN |
| 435 | #endif |
| 436 | |
| 437 | #include <windows.h> |
| 438 | |
| 439 | #ifndef INVALID_FILE_ATTRIBUTES |
| 440 | #define INVALID_FILE_ATTRIBUTES 0xFFFFFFFF |
| 441 | #endif |
| 442 | |
| 443 | typedef struct directory_type |
| 444 | { |
| 445 | HANDLE handle; |
| 446 | BOOL first; |
| 447 | WIN32_FIND_DATA data; |
| 448 | } directory_type; |
| 449 | |
| 450 | int |
| 451 | isdirectory(char *filename) |
| 452 | { |
| 453 | DWORD attr = GetFileAttributes(filename); |
| 454 | if (attr == INVALID_FILE_ATTRIBUTES) |
| 455 | return 0; |
| 456 | return ((attr & FILE_ATTRIBUTE_DIRECTORY) != 0) ? '/' : 0; |
| 457 | } |
| 458 | |
| 459 | directory_type * |
| 460 | opendirectory(char *filename) |
| 461 | { |
| 462 | size_t len; |
| 463 | char *pattern; |
| 464 | directory_type *dir; |
| 465 | DWORD err; |
| 466 | len = strlen(filename); |
| 467 | pattern = (char *) malloc(len + 3); |
| 468 | dir = (directory_type *) malloc(sizeof(*dir)); |
| 469 | if ((pattern == NULL) || (dir == NULL)) |
| 470 | { |
| 471 | fprintf(stderr, "pcregrep: malloc failed\n"); |
| 472 | pcregrep_exit(2); |
| 473 | } |
| 474 | memcpy(pattern, filename, len); |
| 475 | memcpy(&(pattern[len]), "\\*", 3); |
| 476 | dir->handle = FindFirstFile(pattern, &(dir->data)); |
| 477 | if (dir->handle != INVALID_HANDLE_VALUE) |
| 478 | { |
| 479 | free(pattern); |
| 480 | dir->first = TRUE; |
| 481 | return dir; |
| 482 | } |
| 483 | err = GetLastError(); |
| 484 | free(pattern); |
| 485 | free(dir); |
| 486 | errno = (err == ERROR_ACCESS_DENIED) ? EACCES : ENOENT; |
| 487 | return NULL; |
| 488 | } |
| 489 | |
| 490 | char * |
| 491 | readdirectory(directory_type *dir) |
| 492 | { |
| 493 | for (;;) |
| 494 | { |
| 495 | if (!dir->first) |
| 496 | { |
| 497 | if (!FindNextFile(dir->handle, &(dir->data))) |
| 498 | return NULL; |
| 499 | } |
| 500 | else |
| 501 | { |
| 502 | dir->first = FALSE; |
| 503 | } |
| 504 | if (strcmp(dir->data.cFileName, ".") != 0 && strcmp(dir->data.cFileName, "..") != 0) |
| 505 | return dir->data.cFileName; |
| 506 | } |
| 507 | #ifndef _MSC_VER |
| 508 | return NULL; /* Keep compiler happy; never executed */ |
| 509 | #endif |
| 510 | } |
| 511 | |
| 512 | void |
| 513 | closedirectory(directory_type *dir) |
| 514 | { |
| 515 | FindClose(dir->handle); |
| 516 | free(dir); |
| 517 | } |
| 518 | |
| 519 | |
| 520 | /************* Test for regular file in Win32 **********/ |
| 521 | |
| 522 | /* I don't know how to do this, or if it can be done; assume all paths are |
| 523 | regular if they are not directories. */ |
| 524 | |
| 525 | int isregfile(char *filename) |
| 526 | { |
| 527 | return !isdirectory(filename); |
| 528 | } |
| 529 | |
| 530 | |
| 531 | /************* Test for a terminal in Win32 **********/ |
| 532 | |
| 533 | /* I don't know how to do this; assume never */ |
| 534 | |
| 535 | static BOOL |
| 536 | is_stdout_tty(void) |
| 537 | { |
| 538 | return FALSE; |
| 539 | } |
| 540 | |
| 541 | static BOOL |
| 542 | is_file_tty(FILE *f) |
| 543 | { |
| 544 | return FALSE; |
| 545 | } |
| 546 | |
| 547 | |
| 548 | /************* Directory scanning when we can't do it ***********/ |
| 549 | |
| 550 | /* The type is void, and apart from isdirectory(), the functions do nothing. */ |
| 551 | |
| 552 | #else |
| 553 | |
| 554 | typedef void directory_type; |
| 555 | |
| 556 | int isdirectory(char *filename) { return 0; } |
| 557 | directory_type * opendirectory(char *filename) { return (directory_type*)0;} |
| 558 | char *readdirectory(directory_type *dir) { return (char*)0;} |
| 559 | void closedirectory(directory_type *dir) {} |
| 560 | |
| 561 | |
| 562 | /************* Test for regular when we can't do it **********/ |
| 563 | |
| 564 | /* Assume all files are regular. */ |
| 565 | |
| 566 | int isregfile(char *filename) { return 1; } |
| 567 | |
| 568 | |
| 569 | /************* Test for a terminal when we can't do it **********/ |
| 570 | |
| 571 | static BOOL |
| 572 | is_stdout_tty(void) |
| 573 | { |
| 574 | return FALSE; |
| 575 | } |
| 576 | |
| 577 | static BOOL |
| 578 | is_file_tty(FILE *f) |
| 579 | { |
| 580 | return FALSE; |
| 581 | } |
| 582 | |
| 583 | #endif |
| 584 | |
| 585 | |
| 586 | |
| 587 | #ifndef HAVE_STRERROR |
| 588 | /************************************************* |
| 589 | * Provide strerror() for non-ANSI libraries * |
| 590 | *************************************************/ |
| 591 | |
| 592 | /* Some old-fashioned systems still around (e.g. SunOS4) don't have strerror() |
| 593 | in their libraries, but can provide the same facility by this simple |
| 594 | alternative function. */ |
| 595 | |
| 596 | extern int sys_nerr; |
| 597 | extern char *sys_errlist[]; |
| 598 | |
| 599 | char * |
| 600 | strerror(int n) |
| 601 | { |
| 602 | if (n < 0 || n >= sys_nerr) return "unknown error number"; |
| 603 | return sys_errlist[n]; |
| 604 | } |
| 605 | #endif /* HAVE_STRERROR */ |
| 606 | |
| 607 | |
| 608 | |
| 609 | /************************************************* |
| 610 | * Read one line of input * |
| 611 | *************************************************/ |
| 612 | |
| 613 | /* Normally, input is read using fread() into a large buffer, so many lines may |
| 614 | be read at once. However, doing this for tty input means that no output appears |
| 615 | until a lot of input has been typed. Instead, tty input is handled line by |
| 616 | line. We cannot use fgets() for this, because it does not stop at a binary |
| 617 | zero, and therefore there is no way of telling how many characters it has read, |
| 618 | because there may be binary zeros embedded in the data. |
| 619 | |
| 620 | Arguments: |
| 621 | buffer the buffer to read into |
| 622 | length the maximum number of characters to read |
| 623 | f the file |
| 624 | |
| 625 | Returns: the number of characters read, zero at end of file |
| 626 | */ |
| 627 | |
| 628 | static int |
| 629 | read_one_line(char *buffer, int length, FILE *f) |
| 630 | { |
| 631 | int c; |
| 632 | int yield = 0; |
| 633 | while ((c = fgetc(f)) != EOF) |
| 634 | { |
| 635 | buffer[yield++] = c; |
| 636 | if (c == '\n' || yield >= length) break; |
| 637 | } |
| 638 | return yield; |
| 639 | } |
| 640 | |
| 641 | |
| 642 | |
| 643 | /************************************************* |
| 644 | * Find end of line * |
| 645 | *************************************************/ |
| 646 | |
| 647 | /* The length of the endline sequence that is found is set via lenptr. This may |
| 648 | be zero at the very end of the file if there is no line-ending sequence there. |
| 649 | |
| 650 | Arguments: |
| 651 | p current position in line |
| 652 | endptr end of available data |
| 653 | lenptr where to put the length of the eol sequence |
| 654 | |
| 655 | Returns: pointer after the last byte of the line, |
| 656 | including the newline byte(s) |
| 657 | */ |
| 658 | |
| 659 | static char * |
| 660 | end_of_line(char *p, char *endptr, int *lenptr) |
| 661 | { |
| 662 | switch(endlinetype) |
| 663 | { |
| 664 | default: /* Just in case */ |
| 665 | case EL_LF: |
| 666 | while (p < endptr && *p != '\n') p++; |
| 667 | if (p < endptr) |
| 668 | { |
| 669 | *lenptr = 1; |
| 670 | return p + 1; |
| 671 | } |
| 672 | *lenptr = 0; |
| 673 | return endptr; |
| 674 | |
| 675 | case EL_CR: |
| 676 | while (p < endptr && *p != '\r') p++; |
| 677 | if (p < endptr) |
| 678 | { |
| 679 | *lenptr = 1; |
| 680 | return p + 1; |
| 681 | } |
| 682 | *lenptr = 0; |
| 683 | return endptr; |
| 684 | |
| 685 | case EL_CRLF: |
| 686 | for (;;) |
| 687 | { |
| 688 | while (p < endptr && *p != '\r') p++; |
| 689 | if (++p >= endptr) |
| 690 | { |
| 691 | *lenptr = 0; |
| 692 | return endptr; |
| 693 | } |
| 694 | if (*p == '\n') |
| 695 | { |
| 696 | *lenptr = 2; |
| 697 | return p + 1; |
| 698 | } |
| 699 | } |
| 700 | break; |
| 701 | |
| 702 | case EL_ANYCRLF: |
| 703 | while (p < endptr) |
| 704 | { |
| 705 | int extra = 0; |
| 706 | register int c = *((unsigned char *)p); |
| 707 | |
| 708 | if (utf8 && c >= 0xc0) |
| 709 | { |
| 710 | int gcii, gcss; |
| 711 | extra = utf8_table4[c & 0x3f]; /* Number of additional bytes */ |
| 712 | gcss = 6*extra; |
| 713 | c = (c & utf8_table3[extra]) << gcss; |
| 714 | for (gcii = 1; gcii <= extra; gcii++) |
| 715 | { |
| 716 | gcss -= 6; |
| 717 | c |= (p[gcii] & 0x3f) << gcss; |
| 718 | } |
| 719 | } |
| 720 | |
| 721 | p += 1 + extra; |
| 722 | |
| 723 | switch (c) |
| 724 | { |
| 725 | case 0x0a: /* LF */ |
| 726 | *lenptr = 1; |
| 727 | return p; |
| 728 | |
| 729 | case 0x0d: /* CR */ |
| 730 | if (p < endptr && *p == 0x0a) |
| 731 | { |
| 732 | *lenptr = 2; |
| 733 | p++; |
| 734 | } |
| 735 | else *lenptr = 1; |
| 736 | return p; |
| 737 | |
| 738 | default: |
| 739 | break; |
| 740 | } |
| 741 | } /* End of loop for ANYCRLF case */ |
| 742 | |
| 743 | *lenptr = 0; /* Must have hit the end */ |
| 744 | return endptr; |
| 745 | |
| 746 | case EL_ANY: |
| 747 | while (p < endptr) |
| 748 | { |
| 749 | int extra = 0; |
| 750 | register int c = *((unsigned char *)p); |
| 751 | |
| 752 | if (utf8 && c >= 0xc0) |
| 753 | { |
| 754 | int gcii, gcss; |
| 755 | extra = utf8_table4[c & 0x3f]; /* Number of additional bytes */ |
| 756 | gcss = 6*extra; |
| 757 | c = (c & utf8_table3[extra]) << gcss; |
| 758 | for (gcii = 1; gcii <= extra; gcii++) |
| 759 | { |
| 760 | gcss -= 6; |
| 761 | c |= (p[gcii] & 0x3f) << gcss; |
| 762 | } |
| 763 | } |
| 764 | |
| 765 | p += 1 + extra; |
| 766 | |
| 767 | switch (c) |
| 768 | { |
| 769 | case 0x0a: /* LF */ |
| 770 | case 0x0b: /* VT */ |
| 771 | case 0x0c: /* FF */ |
| 772 | *lenptr = 1; |
| 773 | return p; |
| 774 | |
| 775 | case 0x0d: /* CR */ |
| 776 | if (p < endptr && *p == 0x0a) |
| 777 | { |
| 778 | *lenptr = 2; |
| 779 | p++; |
| 780 | } |
| 781 | else *lenptr = 1; |
| 782 | return p; |
| 783 | |
| 784 | case 0x85: /* NEL */ |
| 785 | *lenptr = utf8? 2 : 1; |
| 786 | return p; |
| 787 | |
| 788 | case 0x2028: /* LS */ |
| 789 | case 0x2029: /* PS */ |
| 790 | *lenptr = 3; |
| 791 | return p; |
| 792 | |
| 793 | default: |
| 794 | break; |
| 795 | } |
| 796 | } /* End of loop for ANY case */ |
| 797 | |
| 798 | *lenptr = 0; /* Must have hit the end */ |
| 799 | return endptr; |
| 800 | } /* End of overall switch */ |
| 801 | } |
| 802 | |
| 803 | |
| 804 | |
| 805 | /************************************************* |
| 806 | * Find start of previous line * |
| 807 | *************************************************/ |
| 808 | |
| 809 | /* This is called when looking back for before lines to print. |
| 810 | |
| 811 | Arguments: |
| 812 | p start of the subsequent line |
| 813 | startptr start of available data |
| 814 | |
| 815 | Returns: pointer to the start of the previous line |
| 816 | */ |
| 817 | |
| 818 | static char * |
| 819 | previous_line(char *p, char *startptr) |
| 820 | { |
| 821 | switch(endlinetype) |
| 822 | { |
| 823 | default: /* Just in case */ |
| 824 | case EL_LF: |
| 825 | p--; |
| 826 | while (p > startptr && p[-1] != '\n') p--; |
| 827 | return p; |
| 828 | |
| 829 | case EL_CR: |
| 830 | p--; |
| 831 | while (p > startptr && p[-1] != '\n') p--; |
| 832 | return p; |
| 833 | |
| 834 | case EL_CRLF: |
| 835 | for (;;) |
| 836 | { |
| 837 | p -= 2; |
| 838 | while (p > startptr && p[-1] != '\n') p--; |
| 839 | if (p <= startptr + 1 || p[-2] == '\r') return p; |
| 840 | } |
| 841 | return p; /* But control should never get here */ |
| 842 | |
| 843 | case EL_ANY: |
| 844 | case EL_ANYCRLF: |
| 845 | if (*(--p) == '\n' && p > startptr && p[-1] == '\r') p--; |
| 846 | if (utf8) while ((*p & 0xc0) == 0x80) p--; |
| 847 | |
| 848 | while (p > startptr) |
| 849 | { |
| 850 | register int c; |
| 851 | char *pp = p - 1; |
| 852 | |
| 853 | if (utf8) |
| 854 | { |
| 855 | int extra = 0; |
| 856 | while ((*pp & 0xc0) == 0x80) pp--; |
| 857 | c = *((unsigned char *)pp); |
| 858 | if (c >= 0xc0) |
| 859 | { |
| 860 | int gcii, gcss; |
| 861 | extra = utf8_table4[c & 0x3f]; /* Number of additional bytes */ |
| 862 | gcss = 6*extra; |
| 863 | c = (c & utf8_table3[extra]) << gcss; |
| 864 | for (gcii = 1; gcii <= extra; gcii++) |
| 865 | { |
| 866 | gcss -= 6; |
| 867 | c |= (pp[gcii] & 0x3f) << gcss; |
| 868 | } |
| 869 | } |
| 870 | } |
| 871 | else c = *((unsigned char *)pp); |
| 872 | |
| 873 | if (endlinetype == EL_ANYCRLF) switch (c) |
| 874 | { |
| 875 | case 0x0a: /* LF */ |
| 876 | case 0x0d: /* CR */ |
| 877 | return p; |
| 878 | |
| 879 | default: |
| 880 | break; |
| 881 | } |
| 882 | |
| 883 | else switch (c) |
| 884 | { |
| 885 | case 0x0a: /* LF */ |
| 886 | case 0x0b: /* VT */ |
| 887 | case 0x0c: /* FF */ |
| 888 | case 0x0d: /* CR */ |
| 889 | case 0x85: /* NEL */ |
| 890 | case 0x2028: /* LS */ |
| 891 | case 0x2029: /* PS */ |
| 892 | return p; |
| 893 | |
| 894 | default: |
| 895 | break; |
| 896 | } |
| 897 | |
| 898 | p = pp; /* Back one character */ |
| 899 | } /* End of loop for ANY case */ |
| 900 | |
| 901 | return startptr; /* Hit start of data */ |
| 902 | } /* End of overall switch */ |
| 903 | } |
| 904 | |
| 905 | |
| 906 | |
| 907 | |
| 908 | |
| 909 | /************************************************* |
| 910 | * Print the previous "after" lines * |
| 911 | *************************************************/ |
| 912 | |
| 913 | /* This is called if we are about to lose said lines because of buffer filling, |
| 914 | and at the end of the file. The data in the line is written using fwrite() so |
| 915 | that a binary zero does not terminate it. |
| 916 | |
| 917 | Arguments: |
| 918 | lastmatchnumber the number of the last matching line, plus one |
| 919 | lastmatchrestart where we restarted after the last match |
| 920 | endptr end of available data |
| 921 | printname filename for printing |
| 922 | |
| 923 | Returns: nothing |
| 924 | */ |
| 925 | |
| 926 | static void do_after_lines(int lastmatchnumber, char *lastmatchrestart, |
| 927 | char *endptr, char *printname) |
| 928 | { |
| 929 | if (after_context > 0 && lastmatchnumber > 0) |
| 930 | { |
| 931 | int count = 0; |
| 932 | while (lastmatchrestart < endptr && count++ < after_context) |
| 933 | { |
| 934 | int ellength; |
| 935 | char *pp = lastmatchrestart; |
| 936 | if (printname != NULL) fprintf(stdout, "%s-", printname); |
| 937 | if (number) fprintf(stdout, "%d-", lastmatchnumber++); |
| 938 | pp = end_of_line(pp, endptr, &ellength); |
| 939 | FWRITE(lastmatchrestart, 1, pp - lastmatchrestart, stdout); |
| 940 | lastmatchrestart = pp; |
| 941 | } |
| 942 | hyphenpending = TRUE; |
| 943 | } |
| 944 | } |
| 945 | |
| 946 | |
| 947 | |
| 948 | /************************************************* |
| 949 | * Apply patterns to subject till one matches * |
| 950 | *************************************************/ |
| 951 | |
| 952 | /* This function is called to run through all patterns, looking for a match. It |
| 953 | is used multiple times for the same subject when colouring is enabled, in order |
| 954 | to find all possible matches. |
| 955 | |
| 956 | Arguments: |
| 957 | matchptr the start of the subject |
| 958 | length the length of the subject to match |
| 959 | startoffset where to start matching |
| 960 | offsets the offets vector to fill in |
| 961 | mrc address of where to put the result of pcre_exec() |
| 962 | |
| 963 | Returns: TRUE if there was a match |
| 964 | FALSE if there was no match |
| 965 | invert if there was a non-fatal error |
| 966 | */ |
| 967 | |
| 968 | static BOOL |
| 969 | match_patterns(char *matchptr, size_t length, int startoffset, int *offsets, |
| 970 | int *mrc) |
| 971 | { |
| 972 | int i; |
| 973 | size_t slen = length; |
| 974 | const char *msg = "this text:\n\n"; |
| 975 | if (slen > 200) |
| 976 | { |
| 977 | slen = 200; |
| 978 | msg = "text that starts:\n\n"; |
| 979 | } |
| 980 | for (i = 0; i < pattern_count; i++) |
| 981 | { |
| 982 | *mrc = pcre_exec(pattern_list[i], hints_list[i], matchptr, (int)length, |
| 983 | startoffset, PCRE_NOTEMPTY, offsets, OFFSET_SIZE); |
| 984 | if (*mrc >= 0) return TRUE; |
| 985 | if (*mrc == PCRE_ERROR_NOMATCH) continue; |
| 986 | fprintf(stderr, "pcregrep: pcre_exec() gave error %d while matching ", *mrc); |
| 987 | if (pattern_count > 1) fprintf(stderr, "pattern number %d to ", i+1); |
| 988 | fprintf(stderr, "%s", msg); |
| 989 | FWRITE(matchptr, 1, slen, stderr); /* In case binary zero included */ |
| 990 | fprintf(stderr, "\n\n"); |
| 991 | if (*mrc == PCRE_ERROR_MATCHLIMIT || *mrc == PCRE_ERROR_RECURSIONLIMIT || |
| 992 | *mrc == PCRE_ERROR_JIT_STACKLIMIT) |
| 993 | resource_error = TRUE; |
| 994 | if (error_count++ > 20) |
| 995 | { |
| 996 | fprintf(stderr, "pcregrep: Too many errors - abandoned.\n"); |
| 997 | pcregrep_exit(2); |
| 998 | } |
| 999 | return invert; /* No more matching; don't show the line again */ |
| 1000 | } |
| 1001 | |
| 1002 | return FALSE; /* No match, no errors */ |
| 1003 | } |
| 1004 | |
| 1005 | |
| 1006 | |
| 1007 | /************************************************* |
| 1008 | * Grep an individual file * |
| 1009 | *************************************************/ |
| 1010 | |
| 1011 | /* This is called from grep_or_recurse() below. It uses a buffer that is three |
| 1012 | times the value of bufthird. The matching point is never allowed to stray into |
| 1013 | the top third of the buffer, thus keeping more of the file available for |
| 1014 | context printing or for multiline scanning. For large files, the pointer will |
| 1015 | be in the middle third most of the time, so the bottom third is available for |
| 1016 | "before" context printing. |
| 1017 | |
| 1018 | Arguments: |
| 1019 | handle the fopened FILE stream for a normal file |
| 1020 | the gzFile pointer when reading is via libz |
| 1021 | the BZFILE pointer when reading is via libbz2 |
| 1022 | frtype FR_PLAIN, FR_LIBZ, or FR_LIBBZ2 |
| 1023 | filename the file name or NULL (for errors) |
| 1024 | printname the file name if it is to be printed for each match |
| 1025 | or NULL if the file name is not to be printed |
| 1026 | it cannot be NULL if filenames[_nomatch]_only is set |
| 1027 | |
| 1028 | Returns: 0 if there was at least one match |
| 1029 | 1 otherwise (no matches) |
| 1030 | 2 if an overlong line is encountered |
| 1031 | 3 if there is a read error on a .bz2 file |
| 1032 | */ |
| 1033 | |
| 1034 | static int |
| 1035 | pcregrep(void *handle, int frtype, char *filename, char *printname) |
| 1036 | { |
| 1037 | int rc = 1; |
| 1038 | int linenumber = 1; |
| 1039 | int lastmatchnumber = 0; |
| 1040 | int count = 0; |
| 1041 | int filepos = 0; |
| 1042 | int offsets[OFFSET_SIZE]; |
| 1043 | char *lastmatchrestart = NULL; |
| 1044 | char *ptr = main_buffer; |
| 1045 | char *endptr; |
| 1046 | size_t bufflength; |
| 1047 | BOOL endhyphenpending = FALSE; |
| 1048 | BOOL input_line_buffered = line_buffered; |
| 1049 | FILE *in = NULL; /* Ensure initialized */ |
| 1050 | |
| 1051 | #ifdef SUPPORT_LIBZ |
| 1052 | gzFile ingz = NULL; |
| 1053 | #endif |
| 1054 | |
| 1055 | #ifdef SUPPORT_LIBBZ2 |
| 1056 | BZFILE *inbz2 = NULL; |
| 1057 | #endif |
| 1058 | |
| 1059 | |
| 1060 | /* Do the first read into the start of the buffer and set up the pointer to end |
| 1061 | of what we have. In the case of libz, a non-zipped .gz file will be read as a |
| 1062 | plain file. However, if a .bz2 file isn't actually bzipped, the first read will |
| 1063 | fail. */ |
| 1064 | |
| 1065 | #ifdef SUPPORT_LIBZ |
| 1066 | if (frtype == FR_LIBZ) |
| 1067 | { |
| 1068 | ingz = (gzFile)handle; |
| 1069 | bufflength = gzread (ingz, main_buffer, bufsize); |
| 1070 | } |
| 1071 | else |
| 1072 | #endif |
| 1073 | |
| 1074 | #ifdef SUPPORT_LIBBZ2 |
| 1075 | if (frtype == FR_LIBBZ2) |
| 1076 | { |
| 1077 | inbz2 = (BZFILE *)handle; |
| 1078 | bufflength = BZ2_bzread(inbz2, main_buffer, bufsize); |
| 1079 | if ((int)bufflength < 0) return 2; /* Gotcha: bufflength is size_t; */ |
| 1080 | } /* without the cast it is unsigned. */ |
| 1081 | else |
| 1082 | #endif |
| 1083 | |
| 1084 | { |
| 1085 | in = (FILE *)handle; |
| 1086 | if (is_file_tty(in)) input_line_buffered = TRUE; |
| 1087 | bufflength = input_line_buffered? |
| 1088 | read_one_line(main_buffer, bufsize, in) : |
| 1089 | fread(main_buffer, 1, bufsize, in); |
| 1090 | } |
| 1091 | |
| 1092 | endptr = main_buffer + bufflength; |
| 1093 | |
| 1094 | /* Loop while the current pointer is not at the end of the file. For large |
| 1095 | files, endptr will be at the end of the buffer when we are in the middle of the |
| 1096 | file, but ptr will never get there, because as soon as it gets over 2/3 of the |
| 1097 | way, the buffer is shifted left and re-filled. */ |
| 1098 | |
| 1099 | while (ptr < endptr) |
| 1100 | { |
| 1101 | int endlinelength; |
| 1102 | int mrc = 0; |
| 1103 | int startoffset = 0; |
| 1104 | BOOL match; |
| 1105 | char *matchptr = ptr; |
| 1106 | char *t = ptr; |
| 1107 | size_t length, linelength; |
| 1108 | |
| 1109 | /* At this point, ptr is at the start of a line. We need to find the length |
| 1110 | of the subject string to pass to pcre_exec(). In multiline mode, it is the |
| 1111 | length remainder of the data in the buffer. Otherwise, it is the length of |
| 1112 | the next line, excluding the terminating newline. After matching, we always |
| 1113 | advance by the length of the next line. In multiline mode the PCRE_FIRSTLINE |
| 1114 | option is used for compiling, so that any match is constrained to be in the |
| 1115 | first line. */ |
| 1116 | |
| 1117 | t = end_of_line(t, endptr, &endlinelength); |
| 1118 | linelength = t - ptr - endlinelength; |
| 1119 | length = multiline? (size_t)(endptr - ptr) : linelength; |
| 1120 | |
| 1121 | /* Check to see if the line we are looking at extends right to the very end |
| 1122 | of the buffer without a line terminator. This means the line is too long to |
| 1123 | handle. */ |
| 1124 | |
| 1125 | if (endlinelength == 0 && t == main_buffer + bufsize) |
| 1126 | { |
| 1127 | fprintf(stderr, "pcregrep: line %d%s%s is too long for the internal buffer\n" |
| 1128 | "pcregrep: check the --buffer-size option\n", |
| 1129 | linenumber, |
| 1130 | (filename == NULL)? "" : " of file ", |
| 1131 | (filename == NULL)? "" : filename); |
| 1132 | return 2; |
| 1133 | } |
| 1134 | |
| 1135 | /* Extra processing for Jeffrey Friedl's debugging. */ |
| 1136 | |
| 1137 | #ifdef JFRIEDL_DEBUG |
| 1138 | if (jfriedl_XT || jfriedl_XR) |
| 1139 | { |
| 1140 | #include <sys/time.h> |
| 1141 | #include <time.h> |
| 1142 | struct timeval start_time, end_time; |
| 1143 | struct timezone dummy; |
| 1144 | int i; |
| 1145 | |
| 1146 | if (jfriedl_XT) |
| 1147 | { |
| 1148 | unsigned long newlen = length * jfriedl_XT + strlen(jfriedl_prefix) + strlen(jfriedl_postfix); |
| 1149 | const char *orig = ptr; |
| 1150 | ptr = malloc(newlen + 1); |
| 1151 | if (!ptr) { |
| 1152 | printf("out of memory"); |
| 1153 | pcregrep_exit(2); |
| 1154 | } |
| 1155 | endptr = ptr; |
| 1156 | strcpy(endptr, jfriedl_prefix); endptr += strlen(jfriedl_prefix); |
| 1157 | for (i = 0; i < jfriedl_XT; i++) { |
| 1158 | strncpy(endptr, orig, length); |
| 1159 | endptr += length; |
| 1160 | } |
| 1161 | strcpy(endptr, jfriedl_postfix); endptr += strlen(jfriedl_postfix); |
| 1162 | length = newlen; |
| 1163 | } |
| 1164 | |
| 1165 | if (gettimeofday(&start_time, &dummy) != 0) |
| 1166 | perror("bad gettimeofday"); |
| 1167 | |
| 1168 | |
| 1169 | for (i = 0; i < jfriedl_XR; i++) |
| 1170 | match = (pcre_exec(pattern_list[0], hints_list[0], ptr, length, 0, |
| 1171 | PCRE_NOTEMPTY, offsets, OFFSET_SIZE) >= 0); |
| 1172 | |
| 1173 | if (gettimeofday(&end_time, &dummy) != 0) |
| 1174 | perror("bad gettimeofday"); |
| 1175 | |
| 1176 | double delta = ((end_time.tv_sec + (end_time.tv_usec / 1000000.0)) |
| 1177 | - |
| 1178 | (start_time.tv_sec + (start_time.tv_usec / 1000000.0))); |
| 1179 | |
| 1180 | printf("%s TIMER[%.4f]\n", match ? "MATCH" : "FAIL", delta); |
| 1181 | return 0; |
| 1182 | } |
| 1183 | #endif |
| 1184 | |
| 1185 | /* We come back here after a match when the -o option (only_matching) is set, |
| 1186 | in order to find any further matches in the same line. */ |
| 1187 | |
| 1188 | ONLY_MATCHING_RESTART: |
| 1189 | |
| 1190 | /* Run through all the patterns until one matches or there is an error other |
| 1191 | than NOMATCH. This code is in a subroutine so that it can be re-used for |
| 1192 | finding subsequent matches when colouring matched lines. */ |
| 1193 | |
| 1194 | match = match_patterns(matchptr, length, startoffset, offsets, &mrc); |
| 1195 | |
| 1196 | /* If it's a match or a not-match (as required), do what's wanted. */ |
| 1197 | |
| 1198 | if (match != invert) |
| 1199 | { |
| 1200 | BOOL hyphenprinted = FALSE; |
| 1201 | |
| 1202 | /* We've failed if we want a file that doesn't have any matches. */ |
| 1203 | |
| 1204 | if (filenames == FN_NOMATCH_ONLY) return 1; |
| 1205 | |
| 1206 | /* Just count if just counting is wanted. */ |
| 1207 | |
| 1208 | if (count_only) count++; |
| 1209 | |
| 1210 | /* If all we want is a file name, there is no need to scan any more lines |
| 1211 | in the file. */ |
| 1212 | |
| 1213 | else if (filenames == FN_MATCH_ONLY) |
| 1214 | { |
| 1215 | fprintf(stdout, "%s\n", printname); |
| 1216 | return 0; |
| 1217 | } |
| 1218 | |
| 1219 | /* Likewise, if all we want is a yes/no answer. */ |
| 1220 | |
| 1221 | else if (quiet) return 0; |
| 1222 | |
| 1223 | /* The --only-matching option prints just the substring that matched, or a |
| 1224 | captured portion of it, as long as this string is not empty, and the |
| 1225 | --file-offsets and --line-offsets options output offsets for the matching |
| 1226 | substring (they both force --only-matching = 0). None of these options |
| 1227 | prints any context. Afterwards, adjust the start and then jump back to look |
| 1228 | for further matches in the same line. If we are in invert mode, however, |
| 1229 | nothing is printed and we do not restart - this could still be useful |
| 1230 | because the return code is set. */ |
| 1231 | |
| 1232 | else if (only_matching >= 0) |
| 1233 | { |
| 1234 | if (!invert) |
| 1235 | { |
| 1236 | if (printname != NULL) fprintf(stdout, "%s:", printname); |
| 1237 | if (number) fprintf(stdout, "%d:", linenumber); |
| 1238 | if (line_offsets) |
| 1239 | fprintf(stdout, "%d,%d\n", (int)(matchptr + offsets[0] - ptr), |
| 1240 | offsets[1] - offsets[0]); |
| 1241 | else if (file_offsets) |
| 1242 | fprintf(stdout, "%d,%d\n", |
| 1243 | (int)(filepos + matchptr + offsets[0] - ptr), |
| 1244 | offsets[1] - offsets[0]); |
| 1245 | else if (only_matching < mrc) |
| 1246 | { |
| 1247 | int plen = offsets[2*only_matching + 1] - offsets[2*only_matching]; |
| 1248 | if (plen > 0) |
| 1249 | { |
| 1250 | if (do_colour) fprintf(stdout, "%c[%sm", 0x1b, colour_string); |
| 1251 | FWRITE(matchptr + offsets[only_matching*2], 1, plen, stdout); |
| 1252 | if (do_colour) fprintf(stdout, "%c[00m", 0x1b); |
| 1253 | fprintf(stdout, "\n"); |
| 1254 | } |
| 1255 | } |
| 1256 | else if (printname != NULL || number) fprintf(stdout, "\n"); |
| 1257 | match = FALSE; |
| 1258 | if (line_buffered) fflush(stdout); |
| 1259 | rc = 0; /* Had some success */ |
| 1260 | startoffset = offsets[1]; /* Restart after the match */ |
| 1261 | goto ONLY_MATCHING_RESTART; |
| 1262 | } |
| 1263 | } |
| 1264 | |
| 1265 | /* This is the default case when none of the above options is set. We print |
| 1266 | the matching lines(s), possibly preceded and/or followed by other lines of |
| 1267 | context. */ |
| 1268 | |
| 1269 | else |
| 1270 | { |
| 1271 | /* See if there is a requirement to print some "after" lines from a |
| 1272 | previous match. We never print any overlaps. */ |
| 1273 | |
| 1274 | if (after_context > 0 && lastmatchnumber > 0) |
| 1275 | { |
| 1276 | int ellength; |
| 1277 | int linecount = 0; |
| 1278 | char *p = lastmatchrestart; |
| 1279 | |
| 1280 | while (p < ptr && linecount < after_context) |
| 1281 | { |
| 1282 | p = end_of_line(p, ptr, &ellength); |
| 1283 | linecount++; |
| 1284 | } |
| 1285 | |
| 1286 | /* It is important to advance lastmatchrestart during this printing so |
| 1287 | that it interacts correctly with any "before" printing below. Print |
| 1288 | each line's data using fwrite() in case there are binary zeroes. */ |
| 1289 | |
| 1290 | while (lastmatchrestart < p) |
| 1291 | { |
| 1292 | char *pp = lastmatchrestart; |
| 1293 | if (printname != NULL) fprintf(stdout, "%s-", printname); |
| 1294 | if (number) fprintf(stdout, "%d-", lastmatchnumber++); |
| 1295 | pp = end_of_line(pp, endptr, &ellength); |
| 1296 | FWRITE(lastmatchrestart, 1, pp - lastmatchrestart, stdout); |
| 1297 | lastmatchrestart = pp; |
| 1298 | } |
| 1299 | if (lastmatchrestart != ptr) hyphenpending = TRUE; |
| 1300 | } |
| 1301 | |
| 1302 | /* If there were non-contiguous lines printed above, insert hyphens. */ |
| 1303 | |
| 1304 | if (hyphenpending) |
| 1305 | { |
| 1306 | fprintf(stdout, "--\n"); |
| 1307 | hyphenpending = FALSE; |
| 1308 | hyphenprinted = TRUE; |
| 1309 | } |
| 1310 | |
| 1311 | /* See if there is a requirement to print some "before" lines for this |
| 1312 | match. Again, don't print overlaps. */ |
| 1313 | |
| 1314 | if (before_context > 0) |
| 1315 | { |
| 1316 | int linecount = 0; |
| 1317 | char *p = ptr; |
| 1318 | |
| 1319 | while (p > main_buffer && (lastmatchnumber == 0 || p > lastmatchrestart) && |
| 1320 | linecount < before_context) |
| 1321 | { |
| 1322 | linecount++; |
| 1323 | p = previous_line(p, main_buffer); |
| 1324 | } |
| 1325 | |
| 1326 | if (lastmatchnumber > 0 && p > lastmatchrestart && !hyphenprinted) |
| 1327 | fprintf(stdout, "--\n"); |
| 1328 | |
| 1329 | while (p < ptr) |
| 1330 | { |
| 1331 | int ellength; |
| 1332 | char *pp = p; |
| 1333 | if (printname != NULL) fprintf(stdout, "%s-", printname); |
| 1334 | if (number) fprintf(stdout, "%d-", linenumber - linecount--); |
| 1335 | pp = end_of_line(pp, endptr, &ellength); |
| 1336 | FWRITE(p, 1, pp - p, stdout); |
| 1337 | p = pp; |
| 1338 | } |
| 1339 | } |
| 1340 | |
| 1341 | /* Now print the matching line(s); ensure we set hyphenpending at the end |
| 1342 | of the file if any context lines are being output. */ |
| 1343 | |
| 1344 | if (after_context > 0 || before_context > 0) |
| 1345 | endhyphenpending = TRUE; |
| 1346 | |
| 1347 | if (printname != NULL) fprintf(stdout, "%s:", printname); |
| 1348 | if (number) fprintf(stdout, "%d:", linenumber); |
| 1349 | |
| 1350 | /* In multiline mode, we want to print to the end of the line in which |
| 1351 | the end of the matched string is found, so we adjust linelength and the |
| 1352 | line number appropriately, but only when there actually was a match |
| 1353 | (invert not set). Because the PCRE_FIRSTLINE option is set, the start of |
| 1354 | the match will always be before the first newline sequence. */ |
| 1355 | |
| 1356 | if (multiline & !invert) |
| 1357 | { |
| 1358 | char *endmatch = ptr + offsets[1]; |
| 1359 | t = ptr; |
| 1360 | while (t < endmatch) |
| 1361 | { |
| 1362 | t = end_of_line(t, endptr, &endlinelength); |
| 1363 | if (t < endmatch) linenumber++; else break; |
| 1364 | } |
| 1365 | linelength = t - ptr - endlinelength; |
| 1366 | } |
| 1367 | |
| 1368 | /*** NOTE: Use only fwrite() to output the data line, so that binary |
| 1369 | zeroes are treated as just another data character. */ |
| 1370 | |
| 1371 | /* This extra option, for Jeffrey Friedl's debugging requirements, |
| 1372 | replaces the matched string, or a specific captured string if it exists, |
| 1373 | with X. When this happens, colouring is ignored. */ |
| 1374 | |
| 1375 | #ifdef JFRIEDL_DEBUG |
| 1376 | if (S_arg >= 0 && S_arg < mrc) |
| 1377 | { |
| 1378 | int first = S_arg * 2; |
| 1379 | int last = first + 1; |
| 1380 | FWRITE(ptr, 1, offsets[first], stdout); |
| 1381 | fprintf(stdout, "X"); |
| 1382 | FWRITE(ptr + offsets[last], 1, linelength - offsets[last], stdout); |
| 1383 | } |
| 1384 | else |
| 1385 | #endif |
| 1386 | |
| 1387 | /* We have to split the line(s) up if colouring, and search for further |
| 1388 | matches, but not of course if the line is a non-match. */ |
| 1389 | |
| 1390 | if (do_colour && !invert) |
| 1391 | { |
| 1392 | int plength; |
| 1393 | FWRITE(ptr, 1, offsets[0], stdout); |
| 1394 | fprintf(stdout, "%c[%sm", 0x1b, colour_string); |
| 1395 | FWRITE(ptr + offsets[0], 1, offsets[1] - offsets[0], stdout); |
| 1396 | fprintf(stdout, "%c[00m", 0x1b); |
| 1397 | for (;;) |
| 1398 | { |
| 1399 | startoffset = offsets[1]; |
| 1400 | if (startoffset >= (int)linelength + endlinelength || |
| 1401 | !match_patterns(matchptr, length, startoffset, offsets, &mrc)) |
| 1402 | break; |
| 1403 | FWRITE(matchptr + startoffset, 1, offsets[0] - startoffset, stdout); |
| 1404 | fprintf(stdout, "%c[%sm", 0x1b, colour_string); |
| 1405 | FWRITE(matchptr + offsets[0], 1, offsets[1] - offsets[0], stdout); |
| 1406 | fprintf(stdout, "%c[00m", 0x1b); |
| 1407 | } |
| 1408 | |
| 1409 | /* In multiline mode, we may have already printed the complete line |
| 1410 | and its line-ending characters (if they matched the pattern), so there |
| 1411 | may be no more to print. */ |
| 1412 | |
| 1413 | plength = (int)((linelength + endlinelength) - startoffset); |
| 1414 | if (plength > 0) FWRITE(ptr + startoffset, 1, plength, stdout); |
| 1415 | } |
| 1416 | |
| 1417 | /* Not colouring; no need to search for further matches */ |
| 1418 | |
| 1419 | else FWRITE(ptr, 1, linelength + endlinelength, stdout); |
| 1420 | } |
| 1421 | |
| 1422 | /* End of doing what has to be done for a match. If --line-buffered was |
| 1423 | given, flush the output. */ |
| 1424 | |
| 1425 | if (line_buffered) fflush(stdout); |
| 1426 | rc = 0; /* Had some success */ |
| 1427 | |
| 1428 | /* Remember where the last match happened for after_context. We remember |
| 1429 | where we are about to restart, and that line's number. */ |
| 1430 | |
| 1431 | lastmatchrestart = ptr + linelength + endlinelength; |
| 1432 | lastmatchnumber = linenumber + 1; |
| 1433 | } |
| 1434 | |
| 1435 | /* For a match in multiline inverted mode (which of course did not cause |
| 1436 | anything to be printed), we have to move on to the end of the match before |
| 1437 | proceeding. */ |
| 1438 | |
| 1439 | if (multiline && invert && match) |
| 1440 | { |
| 1441 | int ellength; |
| 1442 | char *endmatch = ptr + offsets[1]; |
| 1443 | t = ptr; |
| 1444 | while (t < endmatch) |
| 1445 | { |
| 1446 | t = end_of_line(t, endptr, &ellength); |
| 1447 | if (t <= endmatch) linenumber++; else break; |
| 1448 | } |
| 1449 | endmatch = end_of_line(endmatch, endptr, &ellength); |
| 1450 | linelength = endmatch - ptr - ellength; |
| 1451 | } |
| 1452 | |
| 1453 | /* Advance to after the newline and increment the line number. The file |
| 1454 | offset to the current line is maintained in filepos. */ |
| 1455 | |
| 1456 | ptr += linelength + endlinelength; |
| 1457 | filepos += (int)(linelength + endlinelength); |
| 1458 | linenumber++; |
| 1459 | |
| 1460 | /* If input is line buffered, and the buffer is not yet full, read another |
| 1461 | line and add it into the buffer. */ |
| 1462 | |
| 1463 | if (input_line_buffered && bufflength < (size_t)bufsize) |
| 1464 | { |
| 1465 | int add = read_one_line(ptr, bufsize - (int)(ptr - main_buffer), in); |
| 1466 | bufflength += add; |
| 1467 | endptr += add; |
| 1468 | } |
| 1469 | |
| 1470 | /* If we haven't yet reached the end of the file (the buffer is full), and |
| 1471 | the current point is in the top 1/3 of the buffer, slide the buffer down by |
| 1472 | 1/3 and refill it. Before we do this, if some unprinted "after" lines are |
| 1473 | about to be lost, print them. */ |
| 1474 | |
| 1475 | if (bufflength >= (size_t)bufsize && ptr > main_buffer + 2*bufthird) |
| 1476 | { |
| 1477 | if (after_context > 0 && |
| 1478 | lastmatchnumber > 0 && |
| 1479 | lastmatchrestart < main_buffer + bufthird) |
| 1480 | { |
| 1481 | do_after_lines(lastmatchnumber, lastmatchrestart, endptr, printname); |
| 1482 | lastmatchnumber = 0; |
| 1483 | } |
| 1484 | |
| 1485 | /* Now do the shuffle */ |
| 1486 | |
| 1487 | memmove(main_buffer, main_buffer + bufthird, 2*bufthird); |
| 1488 | ptr -= bufthird; |
| 1489 | |
| 1490 | #ifdef SUPPORT_LIBZ |
| 1491 | if (frtype == FR_LIBZ) |
| 1492 | bufflength = 2*bufthird + |
| 1493 | gzread (ingz, main_buffer + 2*bufthird, bufthird); |
| 1494 | else |
| 1495 | #endif |
| 1496 | |
| 1497 | #ifdef SUPPORT_LIBBZ2 |
| 1498 | if (frtype == FR_LIBBZ2) |
| 1499 | bufflength = 2*bufthird + |
| 1500 | BZ2_bzread(inbz2, main_buffer + 2*bufthird, bufthird); |
| 1501 | else |
| 1502 | #endif |
| 1503 | |
| 1504 | bufflength = 2*bufthird + |
| 1505 | (input_line_buffered? |
| 1506 | read_one_line(main_buffer + 2*bufthird, bufthird, in) : |
| 1507 | fread(main_buffer + 2*bufthird, 1, bufthird, in)); |
| 1508 | endptr = main_buffer + bufflength; |
| 1509 | |
| 1510 | /* Adjust any last match point */ |
| 1511 | |
| 1512 | if (lastmatchnumber > 0) lastmatchrestart -= bufthird; |
| 1513 | } |
| 1514 | } /* Loop through the whole file */ |
| 1515 | |
| 1516 | /* End of file; print final "after" lines if wanted; do_after_lines sets |
| 1517 | hyphenpending if it prints something. */ |
| 1518 | |
| 1519 | if (only_matching < 0 && !count_only) |
| 1520 | { |
| 1521 | do_after_lines(lastmatchnumber, lastmatchrestart, endptr, printname); |
| 1522 | hyphenpending |= endhyphenpending; |
| 1523 | } |
| 1524 | |
| 1525 | /* Print the file name if we are looking for those without matches and there |
| 1526 | were none. If we found a match, we won't have got this far. */ |
| 1527 | |
| 1528 | if (filenames == FN_NOMATCH_ONLY) |
| 1529 | { |
| 1530 | fprintf(stdout, "%s\n", printname); |
| 1531 | return 0; |
| 1532 | } |
| 1533 | |
| 1534 | /* Print the match count if wanted */ |
| 1535 | |
| 1536 | if (count_only) |
| 1537 | { |
| 1538 | if (count > 0 || !omit_zero_count) |
| 1539 | { |
| 1540 | if (printname != NULL && filenames != FN_NONE) |
| 1541 | fprintf(stdout, "%s:", printname); |
| 1542 | fprintf(stdout, "%d\n", count); |
| 1543 | } |
| 1544 | } |
| 1545 | |
| 1546 | return rc; |
| 1547 | } |
| 1548 | |
| 1549 | |
| 1550 | |
| 1551 | /************************************************* |
| 1552 | * Grep a file or recurse into a directory * |
| 1553 | *************************************************/ |
| 1554 | |
| 1555 | /* Given a path name, if it's a directory, scan all the files if we are |
| 1556 | recursing; if it's a file, grep it. |
| 1557 | |
| 1558 | Arguments: |
| 1559 | pathname the path to investigate |
| 1560 | dir_recurse TRUE if recursing is wanted (-r or -drecurse) |
| 1561 | only_one_at_top TRUE if the path is the only one at toplevel |
| 1562 | |
| 1563 | Returns: 0 if there was at least one match |
| 1564 | 1 if there were no matches |
| 1565 | 2 there was some kind of error |
| 1566 | |
| 1567 | However, file opening failures are suppressed if "silent" is set. |
| 1568 | */ |
| 1569 | |
| 1570 | static int |
| 1571 | grep_or_recurse(char *pathname, BOOL dir_recurse, BOOL only_one_at_top) |
| 1572 | { |
| 1573 | int rc = 1; |
| 1574 | int sep; |
| 1575 | int frtype; |
| 1576 | int pathlen; |
| 1577 | void *handle; |
| 1578 | FILE *in = NULL; /* Ensure initialized */ |
| 1579 | |
| 1580 | #ifdef SUPPORT_LIBZ |
| 1581 | gzFile ingz = NULL; |
| 1582 | #endif |
| 1583 | |
| 1584 | #ifdef SUPPORT_LIBBZ2 |
| 1585 | BZFILE *inbz2 = NULL; |
| 1586 | #endif |
| 1587 | |
| 1588 | /* If the file name is "-" we scan stdin */ |
| 1589 | |
| 1590 | if (strcmp(pathname, "-") == 0) |
| 1591 | { |
| 1592 | return pcregrep(stdin, FR_PLAIN, stdin_name, |
| 1593 | (filenames > FN_DEFAULT || (filenames == FN_DEFAULT && !only_one_at_top))? |
| 1594 | stdin_name : NULL); |
| 1595 | } |
| 1596 | |
| 1597 | /* If the file is a directory, skip if skipping or if we are recursing, scan |
| 1598 | each file and directory within it, subject to any include or exclude patterns |
| 1599 | that were set. The scanning code is localized so it can be made |
| 1600 | system-specific. */ |
| 1601 | |
| 1602 | if ((sep = isdirectory(pathname)) != 0) |
| 1603 | { |
| 1604 | if (dee_action == dee_SKIP) return 1; |
| 1605 | if (dee_action == dee_RECURSE) |
| 1606 | { |
| 1607 | char buffer[1024]; |
| 1608 | char *nextfile; |
| 1609 | directory_type *dir = opendirectory(pathname); |
| 1610 | |
| 1611 | if (dir == NULL) |
| 1612 | { |
| 1613 | if (!silent) |
| 1614 | fprintf(stderr, "pcregrep: Failed to open directory %s: %s\n", pathname, |
| 1615 | strerror(errno)); |
| 1616 | return 2; |
| 1617 | } |
| 1618 | |
| 1619 | while ((nextfile = readdirectory(dir)) != NULL) |
| 1620 | { |
| 1621 | int frc, nflen; |
| 1622 | sprintf(buffer, "%.512s%c%.128s", pathname, sep, nextfile); |
| 1623 | nflen = (int)(strlen(nextfile)); |
| 1624 | |
| 1625 | if (isdirectory(buffer)) |
| 1626 | { |
| 1627 | if (exclude_dir_compiled != NULL && |
| 1628 | pcre_exec(exclude_dir_compiled, NULL, nextfile, nflen, 0, 0, NULL, 0) >= 0) |
| 1629 | continue; |
| 1630 | |
| 1631 | if (include_dir_compiled != NULL && |
| 1632 | pcre_exec(include_dir_compiled, NULL, nextfile, nflen, 0, 0, NULL, 0) < 0) |
| 1633 | continue; |
| 1634 | } |
| 1635 | else |
| 1636 | { |
| 1637 | if (exclude_compiled != NULL && |
| 1638 | pcre_exec(exclude_compiled, NULL, nextfile, nflen, 0, 0, NULL, 0) >= 0) |
| 1639 | continue; |
| 1640 | |
| 1641 | if (include_compiled != NULL && |
| 1642 | pcre_exec(include_compiled, NULL, nextfile, nflen, 0, 0, NULL, 0) < 0) |
| 1643 | continue; |
| 1644 | } |
| 1645 | |
| 1646 | frc = grep_or_recurse(buffer, dir_recurse, FALSE); |
| 1647 | if (frc > 1) rc = frc; |
| 1648 | else if (frc == 0 && rc == 1) rc = 0; |
| 1649 | } |
| 1650 | |
| 1651 | closedirectory(dir); |
| 1652 | return rc; |
| 1653 | } |
| 1654 | } |
| 1655 | |
| 1656 | /* If the file is not a directory and not a regular file, skip it if that's |
| 1657 | been requested. */ |
| 1658 | |
| 1659 | else if (!isregfile(pathname) && DEE_action == DEE_SKIP) return 1; |
| 1660 | |
| 1661 | /* Control reaches here if we have a regular file, or if we have a directory |
| 1662 | and recursion or skipping was not requested, or if we have anything else and |
| 1663 | skipping was not requested. The scan proceeds. If this is the first and only |
| 1664 | argument at top level, we don't show the file name, unless we are only showing |
| 1665 | the file name, or the filename was forced (-H). */ |
| 1666 | |
| 1667 | pathlen = (int)(strlen(pathname)); |
| 1668 | |
| 1669 | /* Open using zlib if it is supported and the file name ends with .gz. */ |
| 1670 | |
| 1671 | #ifdef SUPPORT_LIBZ |
| 1672 | if (pathlen > 3 && strcmp(pathname + pathlen - 3, ".gz") == 0) |
| 1673 | { |
| 1674 | ingz = gzopen(pathname, "rb"); |
| 1675 | if (ingz == NULL) |
| 1676 | { |
| 1677 | if (!silent) |
| 1678 | fprintf(stderr, "pcregrep: Failed to open %s: %s\n", pathname, |
| 1679 | strerror(errno)); |
| 1680 | return 2; |
| 1681 | } |
| 1682 | handle = (void *)ingz; |
| 1683 | frtype = FR_LIBZ; |
| 1684 | } |
| 1685 | else |
| 1686 | #endif |
| 1687 | |
| 1688 | /* Otherwise open with bz2lib if it is supported and the name ends with .bz2. */ |
| 1689 | |
| 1690 | #ifdef SUPPORT_LIBBZ2 |
| 1691 | if (pathlen > 4 && strcmp(pathname + pathlen - 4, ".bz2") == 0) |
| 1692 | { |
| 1693 | inbz2 = BZ2_bzopen(pathname, "rb"); |
| 1694 | handle = (void *)inbz2; |
| 1695 | frtype = FR_LIBBZ2; |
| 1696 | } |
| 1697 | else |
| 1698 | #endif |
| 1699 | |
| 1700 | /* Otherwise use plain fopen(). The label is so that we can come back here if |
| 1701 | an attempt to read a .bz2 file indicates that it really is a plain file. */ |
| 1702 | |
| 1703 | #ifdef SUPPORT_LIBBZ2 |
| 1704 | PLAIN_FILE: |
| 1705 | #endif |
| 1706 | { |
| 1707 | in = fopen(pathname, "rb"); |
| 1708 | handle = (void *)in; |
| 1709 | frtype = FR_PLAIN; |
| 1710 | } |
| 1711 | |
| 1712 | /* All the opening methods return errno when they fail. */ |
| 1713 | |
| 1714 | if (handle == NULL) |
| 1715 | { |
| 1716 | if (!silent) |
| 1717 | fprintf(stderr, "pcregrep: Failed to open %s: %s\n", pathname, |
| 1718 | strerror(errno)); |
| 1719 | return 2; |
| 1720 | } |
| 1721 | |
| 1722 | /* Now grep the file */ |
| 1723 | |
| 1724 | rc = pcregrep(handle, frtype, pathname, (filenames > FN_DEFAULT || |
| 1725 | (filenames == FN_DEFAULT && !only_one_at_top))? pathname : NULL); |
| 1726 | |
| 1727 | /* Close in an appropriate manner. */ |
| 1728 | |
| 1729 | #ifdef SUPPORT_LIBZ |
| 1730 | if (frtype == FR_LIBZ) |
| 1731 | gzclose(ingz); |
| 1732 | else |
| 1733 | #endif |
| 1734 | |
| 1735 | /* If it is a .bz2 file and the result is 3, it means that the first attempt to |
| 1736 | read failed. If the error indicates that the file isn't in fact bzipped, try |
| 1737 | again as a normal file. */ |
| 1738 | |
| 1739 | #ifdef SUPPORT_LIBBZ2 |
| 1740 | if (frtype == FR_LIBBZ2) |
| 1741 | { |
| 1742 | if (rc == 3) |
| 1743 | { |
| 1744 | int errnum; |
| 1745 | const char *err = BZ2_bzerror(inbz2, &errnum); |
| 1746 | if (errnum == BZ_DATA_ERROR_MAGIC) |
| 1747 | { |
| 1748 | BZ2_bzclose(inbz2); |
| 1749 | goto PLAIN_FILE; |
| 1750 | } |
| 1751 | else if (!silent) |
| 1752 | fprintf(stderr, "pcregrep: Failed to read %s using bzlib: %s\n", |
| 1753 | pathname, err); |
| 1754 | rc = 2; /* The normal "something went wrong" code */ |
| 1755 | } |
| 1756 | BZ2_bzclose(inbz2); |
| 1757 | } |
| 1758 | else |
| 1759 | #endif |
| 1760 | |
| 1761 | /* Normal file close */ |
| 1762 | |
| 1763 | fclose(in); |
| 1764 | |
| 1765 | /* Pass back the yield from pcregrep(). */ |
| 1766 | |
| 1767 | return rc; |
| 1768 | } |
| 1769 | |
| 1770 | |
| 1771 | |
| 1772 | |
| 1773 | /************************************************* |
| 1774 | * Usage function * |
| 1775 | *************************************************/ |
| 1776 | |
| 1777 | static int |
| 1778 | usage(int rc) |
| 1779 | { |
| 1780 | option_item *op; |
| 1781 | fprintf(stderr, "Usage: pcregrep [-"); |
| 1782 | for (op = optionlist; op->one_char != 0; op++) |
| 1783 | { |
| 1784 | if (op->one_char > 0) fprintf(stderr, "%c", op->one_char); |
| 1785 | } |
| 1786 | fprintf(stderr, "] [long options] [pattern] [files]\n"); |
| 1787 | fprintf(stderr, "Type `pcregrep --help' for more information and the long " |
| 1788 | "options.\n"); |
| 1789 | return rc; |
| 1790 | } |
| 1791 | |
| 1792 | |
| 1793 | |
| 1794 | |
| 1795 | /************************************************* |
| 1796 | * Help function * |
| 1797 | *************************************************/ |
| 1798 | |
| 1799 | static void |
| 1800 | help(void) |
| 1801 | { |
| 1802 | option_item *op; |
| 1803 | |
| 1804 | printf("Usage: pcregrep [OPTION]... [PATTERN] [FILE1 FILE2 ...]\n"); |
| 1805 | printf("Search for PATTERN in each FILE or standard input.\n"); |
| 1806 | printf("PATTERN must be present if neither -e nor -f is used.\n"); |
| 1807 | printf("\"-\" can be used as a file name to mean STDIN.\n"); |
| 1808 | |
| 1809 | #ifdef SUPPORT_LIBZ |
| 1810 | printf("Files whose names end in .gz are read using zlib.\n"); |
| 1811 | #endif |
| 1812 | |
| 1813 | #ifdef SUPPORT_LIBBZ2 |
| 1814 | printf("Files whose names end in .bz2 are read using bzlib2.\n"); |
| 1815 | #endif |
| 1816 | |
| 1817 | #if defined SUPPORT_LIBZ || defined SUPPORT_LIBBZ2 |
| 1818 | printf("Other files and the standard input are read as plain files.\n\n"); |
| 1819 | #else |
| 1820 | printf("All files are read as plain files, without any interpretation.\n\n"); |
| 1821 | #endif |
| 1822 | |
| 1823 | printf("Example: pcregrep -i 'hello.*world' menu.h main.c\n\n"); |
| 1824 | printf("Options:\n"); |
| 1825 | |
| 1826 | for (op = optionlist; op->one_char != 0; op++) |
| 1827 | { |
| 1828 | int n; |
| 1829 | char s[4]; |
| 1830 | |
| 1831 | /* Two options were accidentally implemented and documented with underscores |
| 1832 | instead of hyphens in their names, something that was not noticed for quite a |
| 1833 | few releases. When fixing this, I left the underscored versions in the list |
| 1834 | in case people were using them. However, we don't want to display them in the |
| 1835 | help data. There are no other options that contain underscores, and we do not |
| 1836 | expect ever to implement such options. Therefore, just omit any option that |
| 1837 | contains an underscore. */ |
| 1838 | |
| 1839 | if (strchr(op->long_name, '_') != NULL) continue; |
| 1840 | |
| 1841 | if (op->one_char > 0) sprintf(s, "-%c,", op->one_char); else strcpy(s, " "); |
| 1842 | n = 31 - printf(" %s --%s", s, op->long_name); |
| 1843 | if (n < 1) n = 1; |
| 1844 | printf("%.*s%s\n", n, " ", op->help_text); |
| 1845 | } |
| 1846 | |
| 1847 | printf("\nNumbers may be followed by K or M, e.g. --buffer-size=100K.\n"); |
| 1848 | printf("The default value for --buffer-size is %d.\n", PCREGREP_BUFSIZE); |
| 1849 | printf("When reading patterns from a file instead of using a command line option,\n"); |
| 1850 | printf("trailing white space is removed and blank lines are ignored.\n"); |
| 1851 | printf("There is a maximum of %d patterns, each of maximum size %d bytes.\n", |
| 1852 | MAX_PATTERN_COUNT, PATBUFSIZE); |
| 1853 | |
| 1854 | printf("\nWith no FILEs, read standard input. If fewer than two FILEs given, assume -h.\n"); |
| 1855 | printf("Exit status is 0 if any matches, 1 if no matches, and 2 if trouble.\n"); |
| 1856 | } |
| 1857 | |
| 1858 | |
| 1859 | |
| 1860 | |
| 1861 | /************************************************* |
| 1862 | * Handle a single-letter, no data option * |
| 1863 | *************************************************/ |
| 1864 | |
| 1865 | static int |
| 1866 | handle_option(int letter, int options) |
| 1867 | { |
| 1868 | switch(letter) |
| 1869 | { |
| 1870 | case N_FOFFSETS: file_offsets = TRUE; break; |
| 1871 | case N_HELP: help(); pcregrep_exit(0); |
| 1872 | case N_LBUFFER: line_buffered = TRUE; break; |
| 1873 | case N_LOFFSETS: line_offsets = number = TRUE; break; |
| 1874 | case N_NOJIT: study_options &= ~PCRE_STUDY_JIT_COMPILE; break; |
| 1875 | case 'c': count_only = TRUE; break; |
| 1876 | case 'F': process_options |= PO_FIXED_STRINGS; break; |
| 1877 | case 'H': filenames = FN_FORCE; break; |
| 1878 | case 'h': filenames = FN_NONE; break; |
| 1879 | case 'i': options |= PCRE_CASELESS; break; |
| 1880 | case 'l': omit_zero_count = TRUE; filenames = FN_MATCH_ONLY; break; |
| 1881 | case 'L': filenames = FN_NOMATCH_ONLY; break; |
| 1882 | case 'M': multiline = TRUE; options |= PCRE_MULTILINE|PCRE_FIRSTLINE; break; |
| 1883 | case 'n': number = TRUE; break; |
| 1884 | case 'o': only_matching = 0; break; |
| 1885 | case 'q': quiet = TRUE; break; |
| 1886 | case 'r': dee_action = dee_RECURSE; break; |
| 1887 | case 's': silent = TRUE; break; |
| 1888 | case 'u': options |= PCRE_UTF8; utf8 = TRUE; break; |
| 1889 | case 'v': invert = TRUE; break; |
| 1890 | case 'w': process_options |= PO_WORD_MATCH; break; |
| 1891 | case 'x': process_options |= PO_LINE_MATCH; break; |
| 1892 | |
| 1893 | case 'V': |
| 1894 | fprintf(stderr, "pcregrep version %s\n", pcre_version()); |
| 1895 | pcregrep_exit(0); |
| 1896 | break; |
| 1897 | |
| 1898 | default: |
| 1899 | fprintf(stderr, "pcregrep: Unknown option -%c\n", letter); |
| 1900 | pcregrep_exit(usage(2)); |
| 1901 | } |
| 1902 | |
| 1903 | return options; |
| 1904 | } |
| 1905 | |
| 1906 | |
| 1907 | |
| 1908 | |
| 1909 | /************************************************* |
| 1910 | * Construct printed ordinal * |
| 1911 | *************************************************/ |
| 1912 | |
| 1913 | /* This turns a number into "1st", "3rd", etc. */ |
| 1914 | |
| 1915 | static char * |
| 1916 | ordin(int n) |
| 1917 | { |
| 1918 | static char buffer[8]; |
| 1919 | char *p = buffer; |
| 1920 | sprintf(p, "%d", n); |
| 1921 | while (*p != 0) p++; |
| 1922 | switch (n%10) |
| 1923 | { |
| 1924 | case 1: strcpy(p, "st"); break; |
| 1925 | case 2: strcpy(p, "nd"); break; |
| 1926 | case 3: strcpy(p, "rd"); break; |
| 1927 | default: strcpy(p, "th"); break; |
| 1928 | } |
| 1929 | return buffer; |
| 1930 | } |
| 1931 | |
| 1932 | |
| 1933 | |
| 1934 | /************************************************* |
| 1935 | * Compile a single pattern * |
| 1936 | *************************************************/ |
| 1937 | |
| 1938 | /* When the -F option has been used, this is called for each substring. |
| 1939 | Otherwise it's called for each supplied pattern. |
| 1940 | |
| 1941 | Arguments: |
| 1942 | pattern the pattern string |
| 1943 | options the PCRE options |
| 1944 | filename the file name, or NULL for a command-line pattern |
| 1945 | count 0 if this is the only command line pattern, or |
| 1946 | number of the command line pattern, or |
| 1947 | linenumber for a pattern from a file |
| 1948 | |
| 1949 | Returns: TRUE on success, FALSE after an error |
| 1950 | */ |
| 1951 | |
| 1952 | static BOOL |
| 1953 | compile_single_pattern(char *pattern, int options, char *filename, int count) |
| 1954 | { |
| 1955 | char buffer[PATBUFSIZE]; |
| 1956 | const char *error; |
| 1957 | int errptr; |
| 1958 | |
| 1959 | if (pattern_count >= MAX_PATTERN_COUNT) |
| 1960 | { |
| 1961 | fprintf(stderr, "pcregrep: Too many %spatterns (max %d)\n", |
| 1962 | (filename == NULL)? "command-line " : "", MAX_PATTERN_COUNT); |
| 1963 | return FALSE; |
| 1964 | } |
| 1965 | |
| 1966 | sprintf(buffer, "%s%.*s%s", prefix[process_options], bufthird, pattern, |
| 1967 | suffix[process_options]); |
| 1968 | pattern_list[pattern_count] = |
| 1969 | pcre_compile(buffer, options, &error, &errptr, pcretables); |
| 1970 | if (pattern_list[pattern_count] != NULL) |
| 1971 | { |
| 1972 | pattern_count++; |
| 1973 | return TRUE; |
| 1974 | } |
| 1975 | |
| 1976 | /* Handle compile errors */ |
| 1977 | |
| 1978 | errptr -= (int)strlen(prefix[process_options]); |
| 1979 | if (errptr > (int)strlen(pattern)) errptr = (int)strlen(pattern); |
| 1980 | |
| 1981 | if (filename == NULL) |
| 1982 | { |
| 1983 | if (count == 0) |
| 1984 | fprintf(stderr, "pcregrep: Error in command-line regex " |
| 1985 | "at offset %d: %s\n", errptr, error); |
| 1986 | else |
| 1987 | fprintf(stderr, "pcregrep: Error in %s command-line regex " |
| 1988 | "at offset %d: %s\n", ordin(count), errptr, error); |
| 1989 | } |
| 1990 | else |
| 1991 | { |
| 1992 | fprintf(stderr, "pcregrep: Error in regex in line %d of %s " |
| 1993 | "at offset %d: %s\n", count, filename, errptr, error); |
| 1994 | } |
| 1995 | |
| 1996 | return FALSE; |
| 1997 | } |
| 1998 | |
| 1999 | |
| 2000 | |
| 2001 | /************************************************* |
| 2002 | * Compile one supplied pattern * |
| 2003 | *************************************************/ |
| 2004 | |
| 2005 | /* When the -F option has been used, each string may be a list of strings, |
| 2006 | separated by line breaks. They will be matched literally. |
| 2007 | |
| 2008 | Arguments: |
| 2009 | pattern the pattern string |
| 2010 | options the PCRE options |
| 2011 | filename the file name, or NULL for a command-line pattern |
| 2012 | count 0 if this is the only command line pattern, or |
| 2013 | number of the command line pattern, or |
| 2014 | linenumber for a pattern from a file |
| 2015 | |
| 2016 | Returns: TRUE on success, FALSE after an error |
| 2017 | */ |
| 2018 | |
| 2019 | static BOOL |
| 2020 | compile_pattern(char *pattern, int options, char *filename, int count) |
| 2021 | { |
| 2022 | if ((process_options & PO_FIXED_STRINGS) != 0) |
| 2023 | { |
| 2024 | char *eop = pattern + strlen(pattern); |
| 2025 | char buffer[PATBUFSIZE]; |
| 2026 | for(;;) |
| 2027 | { |
| 2028 | int ellength; |
| 2029 | char *p = end_of_line(pattern, eop, &ellength); |
| 2030 | if (ellength == 0) |
| 2031 | return compile_single_pattern(pattern, options, filename, count); |
| 2032 | sprintf(buffer, "%.*s", (int)(p - pattern - ellength), pattern); |
| 2033 | pattern = p; |
| 2034 | if (!compile_single_pattern(buffer, options, filename, count)) |
| 2035 | return FALSE; |
| 2036 | } |
| 2037 | } |
| 2038 | else return compile_single_pattern(pattern, options, filename, count); |
| 2039 | } |
| 2040 | |
| 2041 | |
| 2042 | |
| 2043 | /************************************************* |
| 2044 | * Main program * |
| 2045 | *************************************************/ |
| 2046 | |
| 2047 | /* Returns 0 if something matched, 1 if nothing matched, 2 after an error. */ |
| 2048 | |
| 2049 | int |
| 2050 | main(int argc, char **argv) |
| 2051 | { |
| 2052 | int i, j; |
| 2053 | int rc = 1; |
| 2054 | int pcre_options = 0; |
| 2055 | int cmd_pattern_count = 0; |
| 2056 | int hint_count = 0; |
| 2057 | int errptr; |
| 2058 | BOOL only_one_at_top; |
| 2059 | char *patterns[MAX_PATTERN_COUNT]; |
| 2060 | const char *locale_from = "--locale"; |
| 2061 | const char *error; |
| 2062 | |
| 2063 | #ifdef SUPPORT_PCREGREP_JIT |
| 2064 | pcre_jit_stack *jit_stack = NULL; |
| 2065 | #endif |
| 2066 | |
| 2067 | /* Set the default line ending value from the default in the PCRE library; |
| 2068 | "lf", "cr", "crlf", and "any" are supported. Anything else is treated as "lf". |
| 2069 | Note that the return values from pcre_config(), though derived from the ASCII |
| 2070 | codes, are the same in EBCDIC environments, so we must use the actual values |
| 2071 | rather than escapes such as as '\r'. */ |
| 2072 | |
| 2073 | (void)pcre_config(PCRE_CONFIG_NEWLINE, &i); |
| 2074 | switch(i) |
| 2075 | { |
| 2076 | default: newline = (char *)"lf"; break; |
| 2077 | case 13: newline = (char *)"cr"; break; |
| 2078 | case (13 << 8) | 10: newline = (char *)"crlf"; break; |
| 2079 | case -1: newline = (char *)"any"; break; |
| 2080 | case -2: newline = (char *)"anycrlf"; break; |
| 2081 | } |
| 2082 | |
| 2083 | /* Process the options */ |
| 2084 | |
| 2085 | for (i = 1; i < argc; i++) |
| 2086 | { |
| 2087 | option_item *op = NULL; |
| 2088 | char *option_data = (char *)""; /* default to keep compiler happy */ |
| 2089 | BOOL longop; |
| 2090 | BOOL longopwasequals = FALSE; |
| 2091 | |
| 2092 | if (argv[i][0] != '-') break; |
| 2093 | |
| 2094 | /* If we hit an argument that is just "-", it may be a reference to STDIN, |
| 2095 | but only if we have previously had -e or -f to define the patterns. */ |
| 2096 | |
| 2097 | if (argv[i][1] == 0) |
| 2098 | { |
| 2099 | if (pattern_filename != NULL || pattern_count > 0) break; |
| 2100 | else pcregrep_exit(usage(2)); |
| 2101 | } |
| 2102 | |
| 2103 | /* Handle a long name option, or -- to terminate the options */ |
| 2104 | |
| 2105 | if (argv[i][1] == '-') |
| 2106 | { |
| 2107 | char *arg = argv[i] + 2; |
| 2108 | char *argequals = strchr(arg, '='); |
| 2109 | |
| 2110 | if (*arg == 0) /* -- terminates options */ |
| 2111 | { |
| 2112 | i++; |
| 2113 | break; /* out of the options-handling loop */ |
| 2114 | } |
| 2115 | |
| 2116 | longop = TRUE; |
| 2117 | |
| 2118 | /* Some long options have data that follows after =, for example file=name. |
| 2119 | Some options have variations in the long name spelling: specifically, we |
| 2120 | allow "regexp" because GNU grep allows it, though I personally go along |
| 2121 | with Jeffrey Friedl and Larry Wall in preferring "regex" without the "p". |
| 2122 | These options are entered in the table as "regex(p)". Options can be in |
| 2123 | both these categories. */ |
| 2124 | |
| 2125 | for (op = optionlist; op->one_char != 0; op++) |
| 2126 | { |
| 2127 | char *opbra = strchr(op->long_name, '('); |
| 2128 | char *equals = strchr(op->long_name, '='); |
| 2129 | |
| 2130 | /* Handle options with only one spelling of the name */ |
| 2131 | |
| 2132 | if (opbra == NULL) /* Does not contain '(' */ |
| 2133 | { |
| 2134 | if (equals == NULL) /* Not thing=data case */ |
| 2135 | { |
| 2136 | if (strcmp(arg, op->long_name) == 0) break; |
| 2137 | } |
| 2138 | else /* Special case xxx=data */ |
| 2139 | { |
| 2140 | int oplen = (int)(equals - op->long_name); |
| 2141 | int arglen = (argequals == NULL)? |
| 2142 | (int)strlen(arg) : (int)(argequals - arg); |
| 2143 | if (oplen == arglen && strncmp(arg, op->long_name, oplen) == 0) |
| 2144 | { |
| 2145 | option_data = arg + arglen; |
| 2146 | if (*option_data == '=') |
| 2147 | { |
| 2148 | option_data++; |
| 2149 | longopwasequals = TRUE; |
| 2150 | } |
| 2151 | break; |
| 2152 | } |
| 2153 | } |
| 2154 | } |
| 2155 | |
| 2156 | /* Handle options with an alternate spelling of the name */ |
| 2157 | |
| 2158 | else |
| 2159 | { |
| 2160 | char buff1[24]; |
| 2161 | char buff2[24]; |
| 2162 | |
| 2163 | int baselen = (int)(opbra - op->long_name); |
| 2164 | int fulllen = (int)(strchr(op->long_name, ')') - op->long_name + 1); |
| 2165 | int arglen = (argequals == NULL || equals == NULL)? |
| 2166 | (int)strlen(arg) : (int)(argequals - arg); |
| 2167 | |
| 2168 | sprintf(buff1, "%.*s", baselen, op->long_name); |
| 2169 | sprintf(buff2, "%s%.*s", buff1, fulllen - baselen - 2, opbra + 1); |
| 2170 | |
| 2171 | if (strncmp(arg, buff1, arglen) == 0 || |
| 2172 | strncmp(arg, buff2, arglen) == 0) |
| 2173 | { |
| 2174 | if (equals != NULL && argequals != NULL) |
| 2175 | { |
| 2176 | option_data = argequals; |
| 2177 | if (*option_data == '=') |
| 2178 | { |
| 2179 | option_data++; |
| 2180 | longopwasequals = TRUE; |
| 2181 | } |
| 2182 | } |
| 2183 | break; |
| 2184 | } |
| 2185 | } |
| 2186 | } |
| 2187 | |
| 2188 | if (op->one_char == 0) |
| 2189 | { |
| 2190 | fprintf(stderr, "pcregrep: Unknown option %s\n", argv[i]); |
| 2191 | pcregrep_exit(usage(2)); |
| 2192 | } |
| 2193 | } |
| 2194 | |
| 2195 | /* Jeffrey Friedl's debugging harness uses these additional options which |
| 2196 | are not in the right form for putting in the option table because they use |
| 2197 | only one hyphen, yet are more than one character long. By putting them |
| 2198 | separately here, they will not get displayed as part of the help() output, |
| 2199 | but I don't think Jeffrey will care about that. */ |
| 2200 | |
| 2201 | #ifdef JFRIEDL_DEBUG |
| 2202 | else if (strcmp(argv[i], "-pre") == 0) { |
| 2203 | jfriedl_prefix = argv[++i]; |
| 2204 | continue; |
| 2205 | } else if (strcmp(argv[i], "-post") == 0) { |
| 2206 | jfriedl_postfix = argv[++i]; |
| 2207 | continue; |
| 2208 | } else if (strcmp(argv[i], "-XT") == 0) { |
| 2209 | sscanf(argv[++i], "%d", &jfriedl_XT); |
| 2210 | continue; |
| 2211 | } else if (strcmp(argv[i], "-XR") == 0) { |
| 2212 | sscanf(argv[++i], "%d", &jfriedl_XR); |
| 2213 | continue; |
| 2214 | } |
| 2215 | #endif |
| 2216 | |
| 2217 | |
| 2218 | /* One-char options; many that have no data may be in a single argument; we |
| 2219 | continue till we hit the last one or one that needs data. */ |
| 2220 | |
| 2221 | else |
| 2222 | { |
| 2223 | char *s = argv[i] + 1; |
| 2224 | longop = FALSE; |
| 2225 | while (*s != 0) |
| 2226 | { |
| 2227 | for (op = optionlist; op->one_char != 0; op++) |
| 2228 | { |
| 2229 | if (*s == op->one_char) break; |
| 2230 | } |
| 2231 | if (op->one_char == 0) |
| 2232 | { |
| 2233 | fprintf(stderr, "pcregrep: Unknown option letter '%c' in \"%s\"\n", |
| 2234 | *s, argv[i]); |
| 2235 | pcregrep_exit(usage(2)); |
| 2236 | } |
| 2237 | |
| 2238 | /* Check for a single-character option that has data: OP_OP_NUMBER |
| 2239 | is used for one that either has a numerical number or defaults, i.e. the |
| 2240 | data is optional. If a digit follows, there is data; if not, carry on |
| 2241 | with other single-character options in the same string. */ |
| 2242 | |
| 2243 | option_data = s+1; |
| 2244 | if (op->type == OP_OP_NUMBER) |
| 2245 | { |
| 2246 | if (isdigit((unsigned char)s[1])) break; |
| 2247 | } |
| 2248 | else /* Check for end or a dataless option */ |
| 2249 | { |
| 2250 | if (op->type != OP_NODATA || s[1] == 0) break; |
| 2251 | } |
| 2252 | |
| 2253 | /* Handle a single-character option with no data, then loop for the |
| 2254 | next character in the string. */ |
| 2255 | |
| 2256 | pcre_options = handle_option(*s++, pcre_options); |
| 2257 | } |
| 2258 | } |
| 2259 | |
| 2260 | /* At this point we should have op pointing to a matched option. If the type |
| 2261 | is NO_DATA, it means that there is no data, and the option might set |
| 2262 | something in the PCRE options. */ |
| 2263 | |
| 2264 | if (op->type == OP_NODATA) |
| 2265 | { |
| 2266 | pcre_options = handle_option(op->one_char, pcre_options); |
| 2267 | continue; |
| 2268 | } |
| 2269 | |
| 2270 | /* If the option type is OP_OP_STRING or OP_OP_NUMBER, it's an option that |
| 2271 | either has a value or defaults to something. It cannot have data in a |
| 2272 | separate item. At the moment, the only such options are "colo(u)r", |
| 2273 | "only-matching", and Jeffrey Friedl's special -S debugging option. */ |
| 2274 | |
| 2275 | if (*option_data == 0 && |
| 2276 | (op->type == OP_OP_STRING || op->type == OP_OP_NUMBER)) |
| 2277 | { |
| 2278 | switch (op->one_char) |
| 2279 | { |
| 2280 | case N_COLOUR: |
| 2281 | colour_option = (char *)"auto"; |
| 2282 | break; |
| 2283 | |
| 2284 | case 'o': |
| 2285 | only_matching = 0; |
| 2286 | break; |
| 2287 | |
| 2288 | #ifdef JFRIEDL_DEBUG |
| 2289 | case 'S': |
| 2290 | S_arg = 0; |
| 2291 | break; |
| 2292 | #endif |
| 2293 | } |
| 2294 | continue; |
| 2295 | } |
| 2296 | |
| 2297 | /* Otherwise, find the data string for the option. */ |
| 2298 | |
| 2299 | if (*option_data == 0) |
| 2300 | { |
| 2301 | if (i >= argc - 1 || longopwasequals) |
| 2302 | { |
| 2303 | fprintf(stderr, "pcregrep: Data missing after %s\n", argv[i]); |
| 2304 | pcregrep_exit(usage(2)); |
| 2305 | } |
| 2306 | option_data = argv[++i]; |
| 2307 | } |
| 2308 | |
| 2309 | /* If the option type is OP_PATLIST, it's the -e option, which can be called |
| 2310 | multiple times to create a list of patterns. */ |
| 2311 | |
| 2312 | if (op->type == OP_PATLIST) |
| 2313 | { |
| 2314 | if (cmd_pattern_count >= MAX_PATTERN_COUNT) |
| 2315 | { |
| 2316 | fprintf(stderr, "pcregrep: Too many command-line patterns (max %d)\n", |
| 2317 | MAX_PATTERN_COUNT); |
| 2318 | return 2; |
| 2319 | } |
| 2320 | patterns[cmd_pattern_count++] = option_data; |
| 2321 | } |
| 2322 | |
| 2323 | /* Otherwise, deal with single string or numeric data values. */ |
| 2324 | |
| 2325 | else if (op->type != OP_NUMBER && op->type != OP_LONGNUMBER && |
| 2326 | op->type != OP_OP_NUMBER) |
| 2327 | { |
| 2328 | *((char **)op->dataptr) = option_data; |
| 2329 | } |
| 2330 | |
| 2331 | /* Avoid the use of strtoul() because SunOS4 doesn't have it. This is used |
| 2332 | only for unpicking arguments, so just keep it simple. */ |
| 2333 | |
| 2334 | else |
| 2335 | { |
| 2336 | unsigned long int n = 0; |
| 2337 | char *endptr = option_data; |
| 2338 | while (*endptr != 0 && isspace((unsigned char)(*endptr))) endptr++; |
| 2339 | while (isdigit((unsigned char)(*endptr))) |
| 2340 | n = n * 10 + (int)(*endptr++ - '0'); |
| 2341 | if (toupper(*endptr) == 'K') |
| 2342 | { |
| 2343 | n *= 1024; |
| 2344 | endptr++; |
| 2345 | } |
| 2346 | else if (toupper(*endptr) == 'M') |
| 2347 | { |
| 2348 | n *= 1024*1024; |
| 2349 | endptr++; |
| 2350 | } |
| 2351 | if (*endptr != 0) |
| 2352 | { |
| 2353 | if (longop) |
| 2354 | { |
| 2355 | char *equals = strchr(op->long_name, '='); |
| 2356 | int nlen = (equals == NULL)? (int)strlen(op->long_name) : |
| 2357 | (int)(equals - op->long_name); |
| 2358 | fprintf(stderr, "pcregrep: Malformed number \"%s\" after --%.*s\n", |
| 2359 | option_data, nlen, op->long_name); |
| 2360 | } |
| 2361 | else |
| 2362 | fprintf(stderr, "pcregrep: Malformed number \"%s\" after -%c\n", |
| 2363 | option_data, op->one_char); |
| 2364 | pcregrep_exit(usage(2)); |
| 2365 | } |
| 2366 | if (op->type == OP_LONGNUMBER) |
| 2367 | *((unsigned long int *)op->dataptr) = n; |
| 2368 | else |
| 2369 | *((int *)op->dataptr) = n; |
| 2370 | } |
| 2371 | } |
| 2372 | |
| 2373 | /* Options have been decoded. If -C was used, its value is used as a default |
| 2374 | for -A and -B. */ |
| 2375 | |
| 2376 | if (both_context > 0) |
| 2377 | { |
| 2378 | if (after_context == 0) after_context = both_context; |
| 2379 | if (before_context == 0) before_context = both_context; |
| 2380 | } |
| 2381 | |
| 2382 | /* Only one of --only-matching, --file-offsets, or --line-offsets is permitted. |
| 2383 | However, the latter two set only_matching. */ |
| 2384 | |
| 2385 | if ((only_matching >= 0 && (file_offsets || line_offsets)) || |
| 2386 | (file_offsets && line_offsets)) |
| 2387 | { |
| 2388 | fprintf(stderr, "pcregrep: Cannot mix --only-matching, --file-offsets " |
| 2389 | "and/or --line-offsets\n"); |
| 2390 | pcregrep_exit(usage(2)); |
| 2391 | } |
| 2392 | |
| 2393 | if (file_offsets || line_offsets) only_matching = 0; |
| 2394 | |
| 2395 | /* If a locale has not been provided as an option, see if the LC_CTYPE or |
| 2396 | LC_ALL environment variable is set, and if so, use it. */ |
| 2397 | |
| 2398 | if (locale == NULL) |
| 2399 | { |
| 2400 | locale = getenv("LC_ALL"); |
| 2401 | locale_from = "LCC_ALL"; |
| 2402 | } |
| 2403 | |
| 2404 | if (locale == NULL) |
| 2405 | { |
| 2406 | locale = getenv("LC_CTYPE"); |
| 2407 | locale_from = "LC_CTYPE"; |
| 2408 | } |
| 2409 | |
| 2410 | /* If a locale has been provided, set it, and generate the tables the PCRE |
| 2411 | needs. Otherwise, pcretables==NULL, which causes the use of default tables. */ |
| 2412 | |
| 2413 | if (locale != NULL) |
| 2414 | { |
| 2415 | if (setlocale(LC_CTYPE, locale) == NULL) |
| 2416 | { |
| 2417 | fprintf(stderr, "pcregrep: Failed to set locale %s (obtained from %s)\n", |
| 2418 | locale, locale_from); |
| 2419 | return 2; |
| 2420 | } |
| 2421 | pcretables = pcre_maketables(); |
| 2422 | } |
| 2423 | |
| 2424 | /* Sort out colouring */ |
| 2425 | |
| 2426 | if (colour_option != NULL && strcmp(colour_option, "never") != 0) |
| 2427 | { |
| 2428 | if (strcmp(colour_option, "always") == 0) do_colour = TRUE; |
| 2429 | else if (strcmp(colour_option, "auto") == 0) do_colour = is_stdout_tty(); |
| 2430 | else |
| 2431 | { |
| 2432 | fprintf(stderr, "pcregrep: Unknown colour setting \"%s\"\n", |
| 2433 | colour_option); |
| 2434 | return 2; |
| 2435 | } |
| 2436 | if (do_colour) |
| 2437 | { |
| 2438 | char *cs = getenv("PCREGREP_COLOUR"); |
| 2439 | if (cs == NULL) cs = getenv("PCREGREP_COLOR"); |
| 2440 | if (cs != NULL) colour_string = cs; |
| 2441 | } |
| 2442 | } |
| 2443 | |
| 2444 | /* Interpret the newline type; the default settings are Unix-like. */ |
| 2445 | |
| 2446 | if (strcmp(newline, "cr") == 0 || strcmp(newline, "CR") == 0) |
| 2447 | { |
| 2448 | pcre_options |= PCRE_NEWLINE_CR; |
| 2449 | endlinetype = EL_CR; |
| 2450 | } |
| 2451 | else if (strcmp(newline, "lf") == 0 || strcmp(newline, "LF") == 0) |
| 2452 | { |
| 2453 | pcre_options |= PCRE_NEWLINE_LF; |
| 2454 | endlinetype = EL_LF; |
| 2455 | } |
| 2456 | else if (strcmp(newline, "crlf") == 0 || strcmp(newline, "CRLF") == 0) |
| 2457 | { |
| 2458 | pcre_options |= PCRE_NEWLINE_CRLF; |
| 2459 | endlinetype = EL_CRLF; |
| 2460 | } |
| 2461 | else if (strcmp(newline, "any") == 0 || strcmp(newline, "ANY") == 0) |
| 2462 | { |
| 2463 | pcre_options |= PCRE_NEWLINE_ANY; |
| 2464 | endlinetype = EL_ANY; |
| 2465 | } |
| 2466 | else if (strcmp(newline, "anycrlf") == 0 || strcmp(newline, "ANYCRLF") == 0) |
| 2467 | { |
| 2468 | pcre_options |= PCRE_NEWLINE_ANYCRLF; |
| 2469 | endlinetype = EL_ANYCRLF; |
| 2470 | } |
| 2471 | else |
| 2472 | { |
| 2473 | fprintf(stderr, "pcregrep: Invalid newline specifier \"%s\"\n", newline); |
| 2474 | return 2; |
| 2475 | } |
| 2476 | |
| 2477 | /* Interpret the text values for -d and -D */ |
| 2478 | |
| 2479 | if (dee_option != NULL) |
| 2480 | { |
| 2481 | if (strcmp(dee_option, "read") == 0) dee_action = dee_READ; |
| 2482 | else if (strcmp(dee_option, "recurse") == 0) dee_action = dee_RECURSE; |
| 2483 | else if (strcmp(dee_option, "skip") == 0) dee_action = dee_SKIP; |
| 2484 | else |
| 2485 | { |
| 2486 | fprintf(stderr, "pcregrep: Invalid value \"%s\" for -d\n", dee_option); |
| 2487 | return 2; |
| 2488 | } |
| 2489 | } |
| 2490 | |
| 2491 | if (DEE_option != NULL) |
| 2492 | { |
| 2493 | if (strcmp(DEE_option, "read") == 0) DEE_action = DEE_READ; |
| 2494 | else if (strcmp(DEE_option, "skip") == 0) DEE_action = DEE_SKIP; |
| 2495 | else |
| 2496 | { |
| 2497 | fprintf(stderr, "pcregrep: Invalid value \"%s\" for -D\n", DEE_option); |
| 2498 | return 2; |
| 2499 | } |
| 2500 | } |
| 2501 | |
| 2502 | /* Check the values for Jeffrey Friedl's debugging options. */ |
| 2503 | |
| 2504 | #ifdef JFRIEDL_DEBUG |
| 2505 | if (S_arg > 9) |
| 2506 | { |
| 2507 | fprintf(stderr, "pcregrep: bad value for -S option\n"); |
| 2508 | return 2; |
| 2509 | } |
| 2510 | if (jfriedl_XT != 0 || jfriedl_XR != 0) |
| 2511 | { |
| 2512 | if (jfriedl_XT == 0) jfriedl_XT = 1; |
| 2513 | if (jfriedl_XR == 0) jfriedl_XR = 1; |
| 2514 | } |
| 2515 | #endif |
| 2516 | |
| 2517 | /* Get memory for the main buffer, and to store the pattern and hints lists. */ |
| 2518 | |
| 2519 | bufsize = 3*bufthird; |
| 2520 | main_buffer = (char *)malloc(bufsize); |
| 2521 | pattern_list = (pcre **)malloc(MAX_PATTERN_COUNT * sizeof(pcre *)); |
| 2522 | hints_list = (pcre_extra **)malloc(MAX_PATTERN_COUNT * sizeof(pcre_extra *)); |
| 2523 | |
| 2524 | if (main_buffer == NULL || pattern_list == NULL || hints_list == NULL) |
| 2525 | { |
| 2526 | fprintf(stderr, "pcregrep: malloc failed\n"); |
| 2527 | goto EXIT2; |
| 2528 | } |
| 2529 | |
| 2530 | /* If no patterns were provided by -e, and there is no file provided by -f, |
| 2531 | the first argument is the one and only pattern, and it must exist. */ |
| 2532 | |
| 2533 | if (cmd_pattern_count == 0 && pattern_filename == NULL) |
| 2534 | { |
| 2535 | if (i >= argc) return usage(2); |
| 2536 | patterns[cmd_pattern_count++] = argv[i++]; |
| 2537 | } |
| 2538 | |
| 2539 | /* Compile the patterns that were provided on the command line, either by |
| 2540 | multiple uses of -e or as a single unkeyed pattern. */ |
| 2541 | |
| 2542 | for (j = 0; j < cmd_pattern_count; j++) |
| 2543 | { |
| 2544 | if (!compile_pattern(patterns[j], pcre_options, NULL, |
| 2545 | (j == 0 && cmd_pattern_count == 1)? 0 : j + 1)) |
| 2546 | goto EXIT2; |
| 2547 | } |
| 2548 | |
| 2549 | /* Compile the regular expressions that are provided in a file. */ |
| 2550 | |
| 2551 | if (pattern_filename != NULL) |
| 2552 | { |
| 2553 | int linenumber = 0; |
| 2554 | FILE *f; |
| 2555 | char *filename; |
| 2556 | char buffer[PATBUFSIZE]; |
| 2557 | |
| 2558 | if (strcmp(pattern_filename, "-") == 0) |
| 2559 | { |
| 2560 | f = stdin; |
| 2561 | filename = stdin_name; |
| 2562 | } |
| 2563 | else |
| 2564 | { |
| 2565 | f = fopen(pattern_filename, "r"); |
| 2566 | if (f == NULL) |
| 2567 | { |
| 2568 | fprintf(stderr, "pcregrep: Failed to open %s: %s\n", pattern_filename, |
| 2569 | strerror(errno)); |
| 2570 | goto EXIT2; |
| 2571 | } |
| 2572 | filename = pattern_filename; |
| 2573 | } |
| 2574 | |
| 2575 | while (fgets(buffer, PATBUFSIZE, f) != NULL) |
| 2576 | { |
| 2577 | char *s = buffer + (int)strlen(buffer); |
| 2578 | while (s > buffer && isspace((unsigned char)(s[-1]))) s--; |
| 2579 | *s = 0; |
| 2580 | linenumber++; |
| 2581 | if (buffer[0] == 0) continue; /* Skip blank lines */ |
| 2582 | if (!compile_pattern(buffer, pcre_options, filename, linenumber)) |
| 2583 | goto EXIT2; |
| 2584 | } |
| 2585 | |
| 2586 | if (f != stdin) fclose(f); |
| 2587 | } |
| 2588 | |
| 2589 | /* Study the regular expressions, as we will be running them many times. Unless |
| 2590 | JIT has been explicitly disabled, arrange a stack for it to use. */ |
| 2591 | |
| 2592 | #ifdef SUPPORT_PCREGREP_JIT |
| 2593 | if ((study_options & PCRE_STUDY_JIT_COMPILE) != 0) |
| 2594 | jit_stack = pcre_jit_stack_alloc(32*1024, 1024*1024); |
| 2595 | #endif |
| 2596 | |
| 2597 | for (j = 0; j < pattern_count; j++) |
| 2598 | { |
| 2599 | hints_list[j] = pcre_study(pattern_list[j], study_options, &error); |
| 2600 | if (error != NULL) |
| 2601 | { |
| 2602 | char s[16]; |
| 2603 | if (pattern_count == 1) s[0] = 0; else sprintf(s, " number %d", j); |
| 2604 | fprintf(stderr, "pcregrep: Error while studying regex%s: %s\n", s, error); |
| 2605 | goto EXIT2; |
| 2606 | } |
| 2607 | hint_count++; |
| 2608 | #ifdef SUPPORT_PCREGREP_JIT |
| 2609 | if (jit_stack != NULL && hints_list[j] != NULL) |
| 2610 | pcre_assign_jit_stack(hints_list[j], NULL, jit_stack); |
| 2611 | #endif |
| 2612 | } |
| 2613 | |
| 2614 | /* If --match-limit or --recursion-limit was set, put the value(s) into the |
| 2615 | pcre_extra block for each pattern. */ |
| 2616 | |
| 2617 | if (match_limit > 0 || match_limit_recursion > 0) |
| 2618 | { |
| 2619 | for (j = 0; j < pattern_count; j++) |
| 2620 | { |
| 2621 | if (hints_list[j] == NULL) |
| 2622 | { |
| 2623 | hints_list[j] = malloc(sizeof(pcre_extra)); |
| 2624 | if (hints_list[j] == NULL) |
| 2625 | { |
| 2626 | fprintf(stderr, "pcregrep: malloc failed\n"); |
| 2627 | pcregrep_exit(2); |
| 2628 | } |
| 2629 | } |
| 2630 | if (match_limit > 0) |
| 2631 | { |
| 2632 | hints_list[j]->flags |= PCRE_EXTRA_MATCH_LIMIT; |
| 2633 | hints_list[j]->match_limit = match_limit; |
| 2634 | } |
| 2635 | if (match_limit_recursion > 0) |
| 2636 | { |
| 2637 | hints_list[j]->flags |= PCRE_EXTRA_MATCH_LIMIT_RECURSION; |
| 2638 | hints_list[j]->match_limit_recursion = match_limit_recursion; |
| 2639 | } |
| 2640 | } |
| 2641 | } |
| 2642 | |
| 2643 | /* If there are include or exclude patterns, compile them. */ |
| 2644 | |
| 2645 | if (exclude_pattern != NULL) |
| 2646 | { |
| 2647 | exclude_compiled = pcre_compile(exclude_pattern, 0, &error, &errptr, |
| 2648 | pcretables); |
| 2649 | if (exclude_compiled == NULL) |
| 2650 | { |
| 2651 | fprintf(stderr, "pcregrep: Error in 'exclude' regex at offset %d: %s\n", |
| 2652 | errptr, error); |
| 2653 | goto EXIT2; |
| 2654 | } |
| 2655 | } |
| 2656 | |
| 2657 | if (include_pattern != NULL) |
| 2658 | { |
| 2659 | include_compiled = pcre_compile(include_pattern, 0, &error, &errptr, |
| 2660 | pcretables); |
| 2661 | if (include_compiled == NULL) |
| 2662 | { |
| 2663 | fprintf(stderr, "pcregrep: Error in 'include' regex at offset %d: %s\n", |
| 2664 | errptr, error); |
| 2665 | goto EXIT2; |
| 2666 | } |
| 2667 | } |
| 2668 | |
| 2669 | if (exclude_dir_pattern != NULL) |
| 2670 | { |
| 2671 | exclude_dir_compiled = pcre_compile(exclude_dir_pattern, 0, &error, &errptr, |
| 2672 | pcretables); |
| 2673 | if (exclude_dir_compiled == NULL) |
| 2674 | { |
| 2675 | fprintf(stderr, "pcregrep: Error in 'exclude_dir' regex at offset %d: %s\n", |
| 2676 | errptr, error); |
| 2677 | goto EXIT2; |
| 2678 | } |
| 2679 | } |
| 2680 | |
| 2681 | if (include_dir_pattern != NULL) |
| 2682 | { |
| 2683 | include_dir_compiled = pcre_compile(include_dir_pattern, 0, &error, &errptr, |
| 2684 | pcretables); |
| 2685 | if (include_dir_compiled == NULL) |
| 2686 | { |
| 2687 | fprintf(stderr, "pcregrep: Error in 'include_dir' regex at offset %d: %s\n", |
| 2688 | errptr, error); |
| 2689 | goto EXIT2; |
| 2690 | } |
| 2691 | } |
| 2692 | |
| 2693 | /* If there are no further arguments, do the business on stdin and exit. */ |
| 2694 | |
| 2695 | if (i >= argc) |
| 2696 | { |
| 2697 | rc = pcregrep(stdin, FR_PLAIN, stdin_name, |
| 2698 | (filenames > FN_DEFAULT)? stdin_name : NULL); |
| 2699 | goto EXIT; |
| 2700 | } |
| 2701 | |
| 2702 | /* Otherwise, work through the remaining arguments as files or directories. |
| 2703 | Pass in the fact that there is only one argument at top level - this suppresses |
| 2704 | the file name if the argument is not a directory and filenames are not |
| 2705 | otherwise forced. */ |
| 2706 | |
| 2707 | only_one_at_top = i == argc - 1; /* Catch initial value of i */ |
| 2708 | |
| 2709 | for (; i < argc; i++) |
| 2710 | { |
| 2711 | int frc = grep_or_recurse(argv[i], dee_action == dee_RECURSE, |
| 2712 | only_one_at_top); |
| 2713 | if (frc > 1) rc = frc; |
| 2714 | else if (frc == 0 && rc == 1) rc = 0; |
| 2715 | } |
| 2716 | |
| 2717 | EXIT: |
| 2718 | #ifdef SUPPORT_PCREGREP_JIT |
| 2719 | if (jit_stack != NULL) pcre_jit_stack_free(jit_stack); |
| 2720 | #endif |
| 2721 | if (main_buffer != NULL) free(main_buffer); |
| 2722 | if (pattern_list != NULL) |
| 2723 | { |
| 2724 | for (i = 0; i < pattern_count; i++) free(pattern_list[i]); |
| 2725 | free(pattern_list); |
| 2726 | } |
| 2727 | if (hints_list != NULL) |
| 2728 | { |
| 2729 | for (i = 0; i < hint_count; i++) |
| 2730 | { |
| 2731 | if (hints_list[i] != NULL) pcre_free_study(hints_list[i]); |
| 2732 | } |
| 2733 | free(hints_list); |
| 2734 | } |
| 2735 | pcregrep_exit(rc); |
| 2736 | |
| 2737 | EXIT2: |
| 2738 | rc = 2; |
| 2739 | goto EXIT; |
| 2740 | } |
| 2741 | |
| 2742 | /* End of pcregrep */ |