1/* $OpenBSD: util.c,v 1.39 2010/07/02 22:18:03 tedu Exp $ */ 2 3/*- 4 * Copyright (c) 1999 James Howard and Dag-Erling Co�dan Sm�rgrav 5 * Copyright (C) 2008-2010 Gabor Kovesdan <gabor@FreeBSD.org> 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30#include <sys/cdefs.h>
| 1/* $OpenBSD: util.c,v 1.39 2010/07/02 22:18:03 tedu Exp $ */ 2 3/*- 4 * Copyright (c) 1999 James Howard and Dag-Erling Co�dan Sm�rgrav 5 * Copyright (C) 2008-2010 Gabor Kovesdan <gabor@FreeBSD.org> 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30#include <sys/cdefs.h>
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31__FBSDID("$FreeBSD: head/usr.bin/grep/util.c 210479 2010-07-25 18:57:48Z gabor $");
| 31__FBSDID("$FreeBSD: head/usr.bin/grep/util.c 210578 2010-07-29 00:11:14Z gabor $");
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32 33#include <sys/stat.h> 34#include <sys/types.h> 35 36#include <ctype.h> 37#include <err.h> 38#include <errno.h> 39#include <fnmatch.h> 40#include <fts.h> 41#include <libgen.h>
| 32 33#include <sys/stat.h> 34#include <sys/types.h> 35 36#include <ctype.h> 37#include <err.h> 38#include <errno.h> 39#include <fnmatch.h> 40#include <fts.h> 41#include <libgen.h>
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| 42#include <stdbool.h>
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42#include <stdio.h> 43#include <stdlib.h> 44#include <string.h> 45#include <unistd.h> 46#include <wchar.h> 47#include <wctype.h> 48 49#include "grep.h" 50 51static int linesqueued; 52static int procline(struct str *l, int); 53
| 43#include <stdio.h> 44#include <stdlib.h> 45#include <string.h> 46#include <unistd.h> 47#include <wchar.h> 48#include <wctype.h> 49 50#include "grep.h" 51 52static int linesqueued; 53static int procline(struct str *l, int); 54
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| 55bool 56file_matching(const char *fname) 57{ 58 bool ret; 59 60 ret = finclude ? false : true; 61 62 for (unsigned int i = 0; i < fpatterns; ++i) { 63 if (fnmatch(fpattern[i].pat, 64 fname, 0) == 0 || fnmatch(fpattern[i].pat, 65 basename(fname), 0) == 0) { 66 if (fpattern[i].mode == EXCL_PAT) 67 return (false); 68 else 69 ret = true; 70 } 71 } 72 return (ret); 73} 74 75bool 76dir_matching(const char *dname) 77{ 78 bool ret; 79 80 ret = dinclude ? false : true; 81 82 for (unsigned int i = 0; i < dpatterns; ++i) { 83 if (dname != NULL && 84 fnmatch(dname, dpattern[i].pat, 0) == 0) { 85 if (dpattern[i].mode == EXCL_PAT) 86 return (false); 87 else 88 ret = true; 89 } 90 } 91 return (ret); 92} 93
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54/* 55 * Processes a directory when a recursive search is performed with 56 * the -R option. Each appropriate file is passed to procfile(). 57 */ 58int 59grep_tree(char **argv) 60{ 61 FTS *fts; 62 FTSENT *p; 63 char *d, *dir = NULL;
| 94/* 95 * Processes a directory when a recursive search is performed with 96 * the -R option. Each appropriate file is passed to procfile(). 97 */ 98int 99grep_tree(char **argv) 100{ 101 FTS *fts; 102 FTSENT *p; 103 char *d, *dir = NULL;
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64 unsigned int i;
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65 int c, fts_flags; 66 bool ok; 67 68 c = fts_flags = 0; 69 70 switch(linkbehave) { 71 case LINK_EXPLICIT: 72 fts_flags = FTS_COMFOLLOW; 73 break; 74 case LINK_SKIP: 75 fts_flags = FTS_PHYSICAL; 76 break; 77 default: 78 fts_flags = FTS_LOGICAL; 79 80 } 81 82 fts_flags |= FTS_NOSTAT | FTS_NOCHDIR; 83 84 if (!(fts = fts_open(argv, fts_flags, NULL))) 85 err(2, "fts_open"); 86 while ((p = fts_read(fts)) != NULL) { 87 switch (p->fts_info) { 88 case FTS_DNR: 89 /* FALLTHROUGH */ 90 case FTS_ERR: 91 errx(2, "%s: %s", p->fts_path, strerror(p->fts_errno)); 92 break; 93 case FTS_D: 94 /* FALLTHROUGH */ 95 case FTS_DP: 96 break; 97 case FTS_DC: 98 /* Print a warning for recursive directory loop */ 99 warnx("warning: %s: recursive directory loop", 100 p->fts_path); 101 break; 102 default: 103 /* Check for file exclusion/inclusion */ 104 ok = true;
| 104 int c, fts_flags; 105 bool ok; 106 107 c = fts_flags = 0; 108 109 switch(linkbehave) { 110 case LINK_EXPLICIT: 111 fts_flags = FTS_COMFOLLOW; 112 break; 113 case LINK_SKIP: 114 fts_flags = FTS_PHYSICAL; 115 break; 116 default: 117 fts_flags = FTS_LOGICAL; 118 119 } 120 121 fts_flags |= FTS_NOSTAT | FTS_NOCHDIR; 122 123 if (!(fts = fts_open(argv, fts_flags, NULL))) 124 err(2, "fts_open"); 125 while ((p = fts_read(fts)) != NULL) { 126 switch (p->fts_info) { 127 case FTS_DNR: 128 /* FALLTHROUGH */ 129 case FTS_ERR: 130 errx(2, "%s: %s", p->fts_path, strerror(p->fts_errno)); 131 break; 132 case FTS_D: 133 /* FALLTHROUGH */ 134 case FTS_DP: 135 break; 136 case FTS_DC: 137 /* Print a warning for recursive directory loop */ 138 warnx("warning: %s: recursive directory loop", 139 p->fts_path); 140 break; 141 default: 142 /* Check for file exclusion/inclusion */ 143 ok = true;
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105 if (exclflag) {
| 144 if (dexclude || dinclude) {
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106 if ((d = strrchr(p->fts_path, '/')) != NULL) { 107 dir = grep_malloc(sizeof(char) * 108 (d - p->fts_path + 2)); 109 strlcpy(dir, p->fts_path, 110 (d - p->fts_path + 1)); 111 }
| 145 if ((d = strrchr(p->fts_path, '/')) != NULL) { 146 dir = grep_malloc(sizeof(char) * 147 (d - p->fts_path + 2)); 148 strlcpy(dir, p->fts_path, 149 (d - p->fts_path + 1)); 150 }
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112 for (i = 0; i < epatterns; ++i) { 113 switch(epattern[i].type) { 114 case FILE_PAT: 115 if (fnmatch(epattern[i].pat, 116 basename(p->fts_path), 0) == 0) 117 ok = epattern[i].mode != EXCL_PAT; 118 break; 119 case DIR_PAT: 120 if (dir != NULL && strstr(dir, 121 epattern[i].pat) != NULL) 122 ok = epattern[i].mode != EXCL_PAT; 123 break; 124 } 125 }
| 151 ok = dir_matching(dir);
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126 free(dir); 127 dir = NULL; 128 }
| 152 free(dir); 153 dir = NULL; 154 }
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| 155 if (fexclude || finclude) 156 ok &= file_matching(p->fts_path);
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129 130 if (ok) 131 c += procfile(p->fts_path); 132 break; 133 } 134 } 135 136 fts_close(fts); 137 return (c); 138} 139 140/* 141 * Opens a file and processes it. Each file is processed line-by-line 142 * passing the lines to procline(). 143 */ 144int 145procfile(const char *fn) 146{ 147 struct file *f; 148 struct stat sb; 149 struct str ln; 150 mode_t s; 151 int c, t; 152 153 if (mflag && (mcount <= 0)) 154 return (0); 155 156 if (strcmp(fn, "-") == 0) { 157 fn = label != NULL ? label : getstr(1); 158 f = grep_stdin_open(); 159 } else { 160 if (!stat(fn, &sb)) { 161 /* Check if we need to process the file */ 162 s = sb.st_mode & S_IFMT; 163 if (s == S_IFDIR && dirbehave == DIR_SKIP) 164 return (0); 165 if ((s == S_IFIFO || s == S_IFCHR || s == S_IFBLK 166 || s == S_IFSOCK) && devbehave == DEV_SKIP) 167 return (0); 168 } 169 f = grep_open(fn); 170 } 171 if (f == NULL) { 172 if (!sflag) 173 warn("%s", fn); 174 if (errno == ENOENT) 175 notfound = true; 176 return (0); 177 } 178 179 ln.file = grep_malloc(strlen(fn) + 1); 180 strcpy(ln.file, fn); 181 ln.line_no = 0; 182 ln.len = 0; 183 linesqueued = 0; 184 tail = 0; 185 ln.off = -1; 186 187 for (c = 0; c == 0 || !(lflag || qflag); ) { 188 ln.off += ln.len + 1; 189 if ((ln.dat = grep_fgetln(f, &ln.len)) == NULL) { 190 if (ln.line_no == 0 && matchall) 191 exit(0); 192 else 193 break; 194 } 195 if (ln.len > 0 && ln.dat[ln.len - 1] == '\n') 196 --ln.len; 197 ln.line_no++; 198 199 /* Return if we need to skip a binary file */ 200 if (f->binary && binbehave == BINFILE_SKIP) { 201 grep_close(f); 202 free(ln.file); 203 free(f); 204 return (0); 205 } 206 /* Process the file line-by-line */ 207 if ((t = procline(&ln, f->binary)) == 0 && Bflag > 0) { 208 enqueue(&ln); 209 linesqueued++; 210 } 211 c += t; 212 213 /* Count the matches if we have a match limit */ 214 if (mflag) { 215 mcount -= t; 216 if (mcount <= 0) 217 break; 218 } 219 } 220 if (Bflag > 0) 221 clearqueue(); 222 grep_close(f); 223 224 if (cflag) { 225 if (!hflag) 226 printf("%s:", ln.file); 227 printf("%u\n", c); 228 } 229 if (lflag && !qflag && c != 0) 230 printf("%s\n", fn); 231 if (Lflag && !qflag && c == 0) 232 printf("%s\n", fn); 233 if (c && !cflag && !lflag && !Lflag && 234 binbehave == BINFILE_BIN && f->binary && !qflag) 235 printf(getstr(9), fn); 236 237 free(ln.file); 238 free(f); 239 return (c); 240} 241 242#define iswword(x) (iswalnum((x)) || (x) == L'_') 243 244/* 245 * Processes a line comparing it with the specified patterns. Each pattern 246 * is looped to be compared along with the full string, saving each and every 247 * match, which is necessary to colorize the output and to count the 248 * matches. The matching lines are passed to printline() to display the 249 * appropriate output. 250 */ 251static int 252procline(struct str *l, int nottext) 253{ 254 regmatch_t matches[MAX_LINE_MATCHES]; 255 regmatch_t pmatch; 256 size_t st = 0; 257 unsigned int i; 258 int c = 0, m = 0, r = 0; 259 260 if (!matchall) { 261 /* Loop to process the whole line */ 262 while (st <= l->len) { 263 pmatch.rm_so = st; 264 pmatch.rm_eo = l->len; 265 266 /* Loop to compare with all the patterns */ 267 for (i = 0; i < patterns; i++) { 268/* 269 * XXX: grep_search() is a workaround for speed up and should be 270 * removed in the future. See fastgrep.c. 271 */ 272 if (fg_pattern[i].pattern) { 273 r = grep_search(&fg_pattern[i], 274 (unsigned char *)l->dat, 275 l->len, &pmatch); 276 r = (r == 0) ? 0 : REG_NOMATCH; 277 st = pmatch.rm_eo; 278 } else { 279 r = regexec(&r_pattern[i], l->dat, 1, 280 &pmatch, eflags); 281 r = (r == 0) ? 0 : REG_NOMATCH; 282 st = pmatch.rm_eo; 283 } 284 if (r == REG_NOMATCH) 285 continue; 286 /* Check for full match */ 287 if (r == 0 && xflag) 288 if (pmatch.rm_so != 0 || 289 (size_t)pmatch.rm_eo != l->len) 290 r = REG_NOMATCH; 291 /* Check for whole word match */ 292 if (r == 0 && wflag && pmatch.rm_so != 0 && 293 (size_t)pmatch.rm_eo != l->len) { 294 wchar_t *wbegin; 295 wint_t wend; 296 size_t size; 297 298 size = mbstowcs(NULL, l->dat, 299 pmatch.rm_so); 300 301 if (size == ((size_t) - 1)) 302 r = REG_NOMATCH; 303 else { 304 wbegin = grep_malloc(size); 305 if (mbstowcs(wbegin, l->dat, 306 pmatch.rm_so) == ((size_t) - 1)) 307 r = REG_NOMATCH; 308 else if (sscanf(&l->dat[pmatch.rm_eo], 309 "%lc", &wend) != 1) 310 r = REG_NOMATCH; 311 else if (iswword(wbegin[wcslen(wbegin)]) || 312 iswword(wend)) 313 r = REG_NOMATCH; 314 free(wbegin); 315 } 316 } 317 if (r == 0) { 318 if (m == 0) 319 c++; 320 if (m < MAX_LINE_MATCHES) 321 matches[m++] = pmatch; 322 /* matches - skip further patterns */ 323 if ((color != NULL && !oflag) || qflag || lflag) 324 break; 325 } 326 } 327 328 if (vflag) { 329 c = !c; 330 break; 331 } 332 /* One pass if we are not recording matches */ 333 if ((color != NULL && !oflag) || qflag || lflag) 334 break; 335 336 if (st == (size_t)pmatch.rm_so) 337 break; /* No matches */ 338 } 339 } else 340 c = !vflag; 341 342 if (c && binbehave == BINFILE_BIN && nottext) 343 return (c); /* Binary file */ 344 345 /* Dealing with the context */ 346 if ((tail || c) && !cflag && !qflag && !lflag && !Lflag) { 347 if (c) { 348 if (!first && !prev && !tail && Aflag) 349 printf("--\n"); 350 tail = Aflag; 351 if (Bflag > 0) { 352 if (!first && !prev) 353 printf("--\n"); 354 printqueue(); 355 } 356 linesqueued = 0; 357 printline(l, ':', matches, m); 358 } else { 359 printline(l, '-', matches, m); 360 tail--; 361 } 362 } 363 364 if (c) { 365 prev = true; 366 first = false; 367 } else 368 prev = false; 369 370 return (c); 371} 372 373/* 374 * Safe malloc() for internal use. 375 */ 376void * 377grep_malloc(size_t size) 378{ 379 void *ptr; 380 381 if ((ptr = malloc(size)) == NULL) 382 err(2, "malloc"); 383 return (ptr); 384} 385 386/* 387 * Safe calloc() for internal use. 388 */ 389void * 390grep_calloc(size_t nmemb, size_t size) 391{ 392 void *ptr; 393 394 if ((ptr = calloc(nmemb, size)) == NULL) 395 err(2, "calloc"); 396 return (ptr); 397} 398 399/* 400 * Safe realloc() for internal use. 401 */ 402void * 403grep_realloc(void *ptr, size_t size) 404{ 405 406 if ((ptr = realloc(ptr, size)) == NULL) 407 err(2, "realloc"); 408 return (ptr); 409} 410 411/*
| 157 158 if (ok) 159 c += procfile(p->fts_path); 160 break; 161 } 162 } 163 164 fts_close(fts); 165 return (c); 166} 167 168/* 169 * Opens a file and processes it. Each file is processed line-by-line 170 * passing the lines to procline(). 171 */ 172int 173procfile(const char *fn) 174{ 175 struct file *f; 176 struct stat sb; 177 struct str ln; 178 mode_t s; 179 int c, t; 180 181 if (mflag && (mcount <= 0)) 182 return (0); 183 184 if (strcmp(fn, "-") == 0) { 185 fn = label != NULL ? label : getstr(1); 186 f = grep_stdin_open(); 187 } else { 188 if (!stat(fn, &sb)) { 189 /* Check if we need to process the file */ 190 s = sb.st_mode & S_IFMT; 191 if (s == S_IFDIR && dirbehave == DIR_SKIP) 192 return (0); 193 if ((s == S_IFIFO || s == S_IFCHR || s == S_IFBLK 194 || s == S_IFSOCK) && devbehave == DEV_SKIP) 195 return (0); 196 } 197 f = grep_open(fn); 198 } 199 if (f == NULL) { 200 if (!sflag) 201 warn("%s", fn); 202 if (errno == ENOENT) 203 notfound = true; 204 return (0); 205 } 206 207 ln.file = grep_malloc(strlen(fn) + 1); 208 strcpy(ln.file, fn); 209 ln.line_no = 0; 210 ln.len = 0; 211 linesqueued = 0; 212 tail = 0; 213 ln.off = -1; 214 215 for (c = 0; c == 0 || !(lflag || qflag); ) { 216 ln.off += ln.len + 1; 217 if ((ln.dat = grep_fgetln(f, &ln.len)) == NULL) { 218 if (ln.line_no == 0 && matchall) 219 exit(0); 220 else 221 break; 222 } 223 if (ln.len > 0 && ln.dat[ln.len - 1] == '\n') 224 --ln.len; 225 ln.line_no++; 226 227 /* Return if we need to skip a binary file */ 228 if (f->binary && binbehave == BINFILE_SKIP) { 229 grep_close(f); 230 free(ln.file); 231 free(f); 232 return (0); 233 } 234 /* Process the file line-by-line */ 235 if ((t = procline(&ln, f->binary)) == 0 && Bflag > 0) { 236 enqueue(&ln); 237 linesqueued++; 238 } 239 c += t; 240 241 /* Count the matches if we have a match limit */ 242 if (mflag) { 243 mcount -= t; 244 if (mcount <= 0) 245 break; 246 } 247 } 248 if (Bflag > 0) 249 clearqueue(); 250 grep_close(f); 251 252 if (cflag) { 253 if (!hflag) 254 printf("%s:", ln.file); 255 printf("%u\n", c); 256 } 257 if (lflag && !qflag && c != 0) 258 printf("%s\n", fn); 259 if (Lflag && !qflag && c == 0) 260 printf("%s\n", fn); 261 if (c && !cflag && !lflag && !Lflag && 262 binbehave == BINFILE_BIN && f->binary && !qflag) 263 printf(getstr(9), fn); 264 265 free(ln.file); 266 free(f); 267 return (c); 268} 269 270#define iswword(x) (iswalnum((x)) || (x) == L'_') 271 272/* 273 * Processes a line comparing it with the specified patterns. Each pattern 274 * is looped to be compared along with the full string, saving each and every 275 * match, which is necessary to colorize the output and to count the 276 * matches. The matching lines are passed to printline() to display the 277 * appropriate output. 278 */ 279static int 280procline(struct str *l, int nottext) 281{ 282 regmatch_t matches[MAX_LINE_MATCHES]; 283 regmatch_t pmatch; 284 size_t st = 0; 285 unsigned int i; 286 int c = 0, m = 0, r = 0; 287 288 if (!matchall) { 289 /* Loop to process the whole line */ 290 while (st <= l->len) { 291 pmatch.rm_so = st; 292 pmatch.rm_eo = l->len; 293 294 /* Loop to compare with all the patterns */ 295 for (i = 0; i < patterns; i++) { 296/* 297 * XXX: grep_search() is a workaround for speed up and should be 298 * removed in the future. See fastgrep.c. 299 */ 300 if (fg_pattern[i].pattern) { 301 r = grep_search(&fg_pattern[i], 302 (unsigned char *)l->dat, 303 l->len, &pmatch); 304 r = (r == 0) ? 0 : REG_NOMATCH; 305 st = pmatch.rm_eo; 306 } else { 307 r = regexec(&r_pattern[i], l->dat, 1, 308 &pmatch, eflags); 309 r = (r == 0) ? 0 : REG_NOMATCH; 310 st = pmatch.rm_eo; 311 } 312 if (r == REG_NOMATCH) 313 continue; 314 /* Check for full match */ 315 if (r == 0 && xflag) 316 if (pmatch.rm_so != 0 || 317 (size_t)pmatch.rm_eo != l->len) 318 r = REG_NOMATCH; 319 /* Check for whole word match */ 320 if (r == 0 && wflag && pmatch.rm_so != 0 && 321 (size_t)pmatch.rm_eo != l->len) { 322 wchar_t *wbegin; 323 wint_t wend; 324 size_t size; 325 326 size = mbstowcs(NULL, l->dat, 327 pmatch.rm_so); 328 329 if (size == ((size_t) - 1)) 330 r = REG_NOMATCH; 331 else { 332 wbegin = grep_malloc(size); 333 if (mbstowcs(wbegin, l->dat, 334 pmatch.rm_so) == ((size_t) - 1)) 335 r = REG_NOMATCH; 336 else if (sscanf(&l->dat[pmatch.rm_eo], 337 "%lc", &wend) != 1) 338 r = REG_NOMATCH; 339 else if (iswword(wbegin[wcslen(wbegin)]) || 340 iswword(wend)) 341 r = REG_NOMATCH; 342 free(wbegin); 343 } 344 } 345 if (r == 0) { 346 if (m == 0) 347 c++; 348 if (m < MAX_LINE_MATCHES) 349 matches[m++] = pmatch; 350 /* matches - skip further patterns */ 351 if ((color != NULL && !oflag) || qflag || lflag) 352 break; 353 } 354 } 355 356 if (vflag) { 357 c = !c; 358 break; 359 } 360 /* One pass if we are not recording matches */ 361 if ((color != NULL && !oflag) || qflag || lflag) 362 break; 363 364 if (st == (size_t)pmatch.rm_so) 365 break; /* No matches */ 366 } 367 } else 368 c = !vflag; 369 370 if (c && binbehave == BINFILE_BIN && nottext) 371 return (c); /* Binary file */ 372 373 /* Dealing with the context */ 374 if ((tail || c) && !cflag && !qflag && !lflag && !Lflag) { 375 if (c) { 376 if (!first && !prev && !tail && Aflag) 377 printf("--\n"); 378 tail = Aflag; 379 if (Bflag > 0) { 380 if (!first && !prev) 381 printf("--\n"); 382 printqueue(); 383 } 384 linesqueued = 0; 385 printline(l, ':', matches, m); 386 } else { 387 printline(l, '-', matches, m); 388 tail--; 389 } 390 } 391 392 if (c) { 393 prev = true; 394 first = false; 395 } else 396 prev = false; 397 398 return (c); 399} 400 401/* 402 * Safe malloc() for internal use. 403 */ 404void * 405grep_malloc(size_t size) 406{ 407 void *ptr; 408 409 if ((ptr = malloc(size)) == NULL) 410 err(2, "malloc"); 411 return (ptr); 412} 413 414/* 415 * Safe calloc() for internal use. 416 */ 417void * 418grep_calloc(size_t nmemb, size_t size) 419{ 420 void *ptr; 421 422 if ((ptr = calloc(nmemb, size)) == NULL) 423 err(2, "calloc"); 424 return (ptr); 425} 426 427/* 428 * Safe realloc() for internal use. 429 */ 430void * 431grep_realloc(void *ptr, size_t size) 432{ 433 434 if ((ptr = realloc(ptr, size)) == NULL) 435 err(2, "realloc"); 436 return (ptr); 437} 438 439/*
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| 440 * Safe strdup() for internal use. 441 */ 442char * 443grep_strdup(const char *str) 444{ 445 char *ret; 446 447 if ((ret = strdup(str)) == NULL) 448 err(2, "strdup"); 449 return (ret); 450} 451 452/*
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412 * Prints a matching line according to the command line options. 413 */ 414void 415printline(struct str *line, int sep, regmatch_t *matches, int m) 416{ 417 size_t a = 0; 418 int i, n = 0; 419 420 if (!hflag) { 421 if (nullflag == 0) 422 fputs(line->file, stdout); 423 else { 424 printf("%s", line->file); 425 putchar(0); 426 } 427 ++n; 428 } 429 if (nflag) { 430 if (n > 0) 431 putchar(sep); 432 printf("%d", line->line_no); 433 ++n; 434 } 435 if (bflag) { 436 if (n > 0) 437 putchar(sep); 438 printf("%lld", (long long)line->off); 439 ++n; 440 } 441 if (n) 442 putchar(sep); 443 /* --color and -o */ 444 if ((oflag || color) && m > 0) { 445 for (i = 0; i < m; i++) { 446 if (!oflag) 447 fwrite(line->dat + a, matches[i].rm_so - a, 1, 448 stdout); 449 if (color) 450 fprintf(stdout, "\33[%sm\33[K", color); 451 452 fwrite(line->dat + matches[i].rm_so, 453 matches[i].rm_eo - matches[i].rm_so, 1, 454 stdout); 455 if (color) 456 fprintf(stdout, "\33[m\33[K"); 457 a = matches[i].rm_eo; 458 if (oflag) 459 putchar('\n'); 460 } 461 if (!oflag) { 462 if (line->len - a > 0) 463 fwrite(line->dat + a, line->len - a, 1, stdout); 464 putchar('\n'); 465 } 466 } else { 467 fwrite(line->dat, line->len, 1, stdout); 468 putchar('\n'); 469 } 470}
| 453 * Prints a matching line according to the command line options. 454 */ 455void 456printline(struct str *line, int sep, regmatch_t *matches, int m) 457{ 458 size_t a = 0; 459 int i, n = 0; 460 461 if (!hflag) { 462 if (nullflag == 0) 463 fputs(line->file, stdout); 464 else { 465 printf("%s", line->file); 466 putchar(0); 467 } 468 ++n; 469 } 470 if (nflag) { 471 if (n > 0) 472 putchar(sep); 473 printf("%d", line->line_no); 474 ++n; 475 } 476 if (bflag) { 477 if (n > 0) 478 putchar(sep); 479 printf("%lld", (long long)line->off); 480 ++n; 481 } 482 if (n) 483 putchar(sep); 484 /* --color and -o */ 485 if ((oflag || color) && m > 0) { 486 for (i = 0; i < m; i++) { 487 if (!oflag) 488 fwrite(line->dat + a, matches[i].rm_so - a, 1, 489 stdout); 490 if (color) 491 fprintf(stdout, "\33[%sm\33[K", color); 492 493 fwrite(line->dat + matches[i].rm_so, 494 matches[i].rm_eo - matches[i].rm_so, 1, 495 stdout); 496 if (color) 497 fprintf(stdout, "\33[m\33[K"); 498 a = matches[i].rm_eo; 499 if (oflag) 500 putchar('\n'); 501 } 502 if (!oflag) { 503 if (line->len - a > 0) 504 fwrite(line->dat + a, line->len - a, 1, stdout); 505 putchar('\n'); 506 } 507 } else { 508 fwrite(line->dat, line->len, 1, stdout); 509 putchar('\n'); 510 } 511}
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