16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22 /*
23 * Copyright 2005 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
28 /* All Rights Reserved */
29
30 /* Copyright (c) 1987, 1988 Microsoft Corporation */
31 /* All Rights Reserved */
32
33 /* Copyright 2012 Nexenta Systems, Inc. All rights reserved. */
34
35 /*
36 * grep -- print lines matching (or not matching) a pattern
37 *
38 * status returns:
39 * 0 - ok, and some matches
40 * 1 - ok, but no matches
41 * 2 - some error
42 */
43
44 #include <sys/types.h>
45
46 #include <ctype.h>
47 #include <fcntl.h>
48 #include <locale.h>
49 #include <memory.h>
50 #include <regexpr.h>
51 #include <stdio.h>
52 #include <stdlib.h>
53 #include <string.h>
54 #include <unistd.h>
55 #include <ftw.h>
56 #include <limits.h>
57 #include <sys/param.h>
58
59 static const char *errstr[] = {
60 "Range endpoint too large.",
61 "Bad number.",
62 "``\\digit'' out of range.",
63 "No remembered search string.",
64 "\\( \\) imbalance.",
65 "Too many \\(.",
66 "More than 2 numbers given in \\{ \\}.",
67 "} expected after \\.",
68 "First number exceeds second in \\{ \\}.",
69 "[ ] imbalance.",
70 "Regular expression overflow.",
71 "Illegal byte sequence.",
72 "Unknown regexp error code!!",
73 NULL
74 };
75
76 #define errmsg(msg, arg) (void) fprintf(stderr, gettext(msg), arg)
77 #define BLKSIZE 512
78 #define GBUFSIZ 8192
79 #define MAX_DEPTH 1000
80
81 static int temp;
82 static long long lnum;
83 static char *linebuf;
84 static char *prntbuf = NULL;
85 static long fw_lPrntBufLen = 0;
86 static int nflag;
87 static int bflag;
88 static int lflag;
89 static int cflag;
90 static int rflag;
91 static int Rflag;
92 static int vflag;
93 static int sflag;
94 static int iflag;
95 static int wflag;
96 static int hflag;
97 static int qflag;
98 static int errflg;
99 static int nfile;
100 static long long tln;
101 static int nsucc;
102 static int outfn = 0;
103 static int nlflag;
104 static char *ptr, *ptrend;
105 static char *expbuf;
106
107 static void execute(const char *, int);
108 static void regerr(int);
109 static void prepare(const char *);
110 static int recursive(const char *, const struct stat *, int, struct FTW *);
111 static int succeed(const char *);
112
113 int
114 main(int argc, char **argv)
115 {
116 int c;
117 char *arg;
118 extern int optind;
119
120 (void) setlocale(LC_ALL, "");
121 #if !defined(TEXT_DOMAIN) /* Should be defined by cc -D */
122 #define TEXT_DOMAIN "SYS_TEST" /* Use this only if it weren't */
123 #endif
124 (void) textdomain(TEXT_DOMAIN);
125
126 while ((c = getopt(argc, argv, "hqblcnRrsviyw")) != -1)
127 switch (c) {
128 case 'h':
129 hflag++;
130 break;
131 case 'q': /* POSIX: quiet: status only */
132 qflag++;
133 break;
134 case 'v':
135 vflag++;
136 break;
137 case 'c':
138 cflag++;
139 break;
140 case 'n':
141 nflag++;
142 break;
143 case 'R':
144 Rflag++;
145 /* FALLTHROUGH */
146 case 'r':
147 rflag++;
148 break;
149 case 'b':
150 bflag++;
151 break;
152 case 's':
153 sflag++;
154 break;
155 case 'l':
156 lflag++;
157 break;
158 case 'y':
159 case 'i':
160 iflag++;
161 break;
162 case 'w':
163 wflag++;
164 break;
165 case '?':
166 errflg++;
167 }
168
169 if (errflg || (optind >= argc)) {
170 errmsg("Usage: grep [-c|-l|-q] [-r|-R] -hbnsviw "
171 "pattern file . . .\n",
172 (char *)NULL);
173 exit(2);
174 }
175
176 argv = &argv[optind];
177 argc -= optind;
178 nfile = argc - 1;
179
180 if (strrchr(*argv, '\n') != NULL)
181 regerr(41);
182
183 if (iflag) {
184 for (arg = *argv; *arg != NULL; ++arg)
185 *arg = (char)tolower((int)((unsigned char)*arg));
186 }
187
188 if (wflag) {
189 unsigned int wordlen;
190 char *wordbuf;
282 execute(const char *file, int base)
283 {
284 char *lbuf, *p;
285 long count;
286 long offset = 0;
287 char *next_ptr = NULL;
288 long next_count = 0;
289
290 tln = 0;
291
292 if (prntbuf == NULL) {
293 fw_lPrntBufLen = GBUFSIZ + 1;
294 if ((prntbuf = malloc(fw_lPrntBufLen)) == NULL) {
295 exit(2); /* out of memory - BAIL */
296 }
297 if ((linebuf = malloc(fw_lPrntBufLen)) == NULL) {
298 exit(2); /* out of memory - BAIL */
299 }
300 }
301
302 if (file == NULL)
303 temp = 0;
304 else if ((temp = open(file + base, O_RDONLY)) == -1) {
305 if (!sflag)
306 errmsg("grep: can't open %s\n", file);
307 nsucc = 2;
308 return;
309 }
310
311 /* read in first block of bytes */
312 if ((count = read(temp, prntbuf, GBUFSIZ)) <= 0) {
313 (void) close(temp);
314
315 if (cflag && !qflag) {
316 if (nfile > 1 && !hflag && file)
317 (void) fprintf(stdout, "%s:", file);
318 if (!rflag)
319 (void) fprintf(stdout, "%lld\n", tln);
320 }
321 return;
322 }
323
324 lnum = 0;
325 ptr = prntbuf;
326 for (;;) {
327 /* look for next newline */
328 if ((ptrend = memchr(ptr + offset, '\n', count)) == NULL) {
329 offset += count;
330
331 /*
332 * shift unused data to the beginning of the buffer
333 */
334 if (ptr > prntbuf) {
335 (void) memmove(prntbuf, ptr, offset);
336 ptr = prntbuf;
393 } else
394 /*
395 * Use record as is
396 */
397 lbuf = ptr;
398
399 /* lflag only once */
400 if ((step(lbuf, expbuf) ^ vflag) && succeed(file) == 1)
401 break;
402
403 if (!nlflag)
404 break;
405
406 ptr = next_ptr;
407 count = next_count;
408 offset = 0;
409 }
410 (void) close(temp);
411
412 if (cflag && !qflag) {
413 if (!hflag && file && (nfile > 1 ||
414 (rflag && outfn)))
415 (void) fprintf(stdout, "%s:", file);
416 (void) fprintf(stdout, "%lld\n", tln);
417 }
418 }
419
420 static int
421 succeed(const char *f)
422 {
423 int nchars;
424 nsucc = (nsucc == 2) ? 2 : 1;
425
426 if (f == NULL)
427 f = "<stdin>";
428
429 if (qflag) {
430 /* no need to continue */
431 return (1);
432 }
433
434 if (cflag) {
435 tln++;
436 return (0);
437 }
438
439 if (lflag) {
440 (void) fprintf(stdout, "%s\n", f);
441 return (1);
442 }
443
444 if (!hflag && (nfile > 1 || (rflag && outfn))) {
445 /* print filename */
446 (void) fprintf(stdout, "%s:", f);
447 }
448
449 if (bflag)
450 /* print block number */
451 (void) fprintf(stdout, "%lld:", (offset_t)
452 ((lseek(temp, (off_t)0, SEEK_CUR) - 1) / BLKSIZE));
453
454 if (nflag)
455 /* print line number */
456 (void) fprintf(stdout, "%lld:", lnum);
457
458 if (nlflag) {
459 /* newline at end of line */
460 *ptrend = '\n';
461 nchars = ptrend - ptr + 1;
462 } else {
463 /* don't write sentinel \0 */
464 nchars = ptrend - ptr;
|
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22 /*
23 * Copyright 2005 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
28 /* All Rights Reserved */
29
30 /* Copyright (c) 1987, 1988 Microsoft Corporation */
31 /* All Rights Reserved */
32
33 /* Copyright 2012 Nexenta Systems, Inc. All rights reserved. */
34
35 /*
36 * Copyright 2013 Damian Bogel. All rights reserved.
37 */
38
39 /*
40 * grep -- print lines matching (or not matching) a pattern
41 *
42 * status returns:
43 * 0 - ok, and some matches
44 * 1 - ok, but no matches
45 * 2 - some error
46 */
47
48 #include <sys/types.h>
49
50 #include <ctype.h>
51 #include <fcntl.h>
52 #include <locale.h>
53 #include <memory.h>
54 #include <regexpr.h>
55 #include <stdio.h>
56 #include <stdlib.h>
57 #include <string.h>
58 #include <unistd.h>
59 #include <ftw.h>
60 #include <limits.h>
61 #include <sys/param.h>
62
63 static const char *errstr[] = {
64 "Range endpoint too large.",
65 "Bad number.",
66 "``\\digit'' out of range.",
67 "No remembered search string.",
68 "\\( \\) imbalance.",
69 "Too many \\(.",
70 "More than 2 numbers given in \\{ \\}.",
71 "} expected after \\.",
72 "First number exceeds second in \\{ \\}.",
73 "[ ] imbalance.",
74 "Regular expression overflow.",
75 "Illegal byte sequence.",
76 "Unknown regexp error code!!",
77 NULL
78 };
79
80 #define STDIN_FILENAME gettext("(standard input)")
81
82 #define errmsg(msg, arg) (void) fprintf(stderr, gettext(msg), arg)
83 #define BLKSIZE 512
84 #define GBUFSIZ 8192
85 #define MAX_DEPTH 1000
86
87 static int temp;
88 static long long lnum;
89 static char *linebuf;
90 static char *prntbuf = NULL;
91 static long fw_lPrntBufLen = 0;
92 static int nflag;
93 static int bflag;
94 static int lflag;
95 static int cflag;
96 static int rflag;
97 static int Rflag;
98 static int vflag;
99 static int sflag;
100 static int iflag;
101 static int wflag;
102 static int hflag;
103 static int Hflag;
104 static int qflag;
105 static int errflg;
106 static int nfile;
107 static long long tln;
108 static int nsucc;
109 static int outfn = 0;
110 static int nlflag;
111 static char *ptr, *ptrend;
112 static char *expbuf;
113
114 static void execute(const char *, int);
115 static void regerr(int);
116 static void prepare(const char *);
117 static int recursive(const char *, const struct stat *, int, struct FTW *);
118 static int succeed(const char *);
119
120 int
121 main(int argc, char **argv)
122 {
123 int c;
124 char *arg;
125 extern int optind;
126
127 (void) setlocale(LC_ALL, "");
128 #if !defined(TEXT_DOMAIN) /* Should be defined by cc -D */
129 #define TEXT_DOMAIN "SYS_TEST" /* Use this only if it weren't */
130 #endif
131 (void) textdomain(TEXT_DOMAIN);
132
133 while ((c = getopt(argc, argv, "hHqblcnRrsviyw")) != -1)
134 switch (c) {
135 /* based on options order h or H is set as in GNU grep */
136 case 'h':
137 hflag++;
138 Hflag = 0; /* h excludes H */
139 break;
140 case 'H':
141 if (!lflag) /* H is excluded by l */
142 Hflag++;
143 hflag = 0; /* H excludes h */
144 break;
145 case 'q': /* POSIX: quiet: status only */
146 qflag++;
147 break;
148 case 'v':
149 vflag++;
150 break;
151 case 'c':
152 cflag++;
153 break;
154 case 'n':
155 nflag++;
156 break;
157 case 'R':
158 Rflag++;
159 /* FALLTHROUGH */
160 case 'r':
161 rflag++;
162 break;
163 case 'b':
164 bflag++;
165 break;
166 case 's':
167 sflag++;
168 break;
169 case 'l':
170 lflag++;
171 Hflag = 0; /* l excludes H */
172 break;
173 case 'y':
174 case 'i':
175 iflag++;
176 break;
177 case 'w':
178 wflag++;
179 break;
180 case '?':
181 errflg++;
182 }
183
184 if (errflg || (optind >= argc)) {
185 errmsg("Usage: grep [-c|-l|-q] [-r|-R] -hHbnsviw "
186 "pattern file . . .\n",
187 (char *)NULL);
188 exit(2);
189 }
190
191 argv = &argv[optind];
192 argc -= optind;
193 nfile = argc - 1;
194
195 if (strrchr(*argv, '\n') != NULL)
196 regerr(41);
197
198 if (iflag) {
199 for (arg = *argv; *arg != NULL; ++arg)
200 *arg = (char)tolower((int)((unsigned char)*arg));
201 }
202
203 if (wflag) {
204 unsigned int wordlen;
205 char *wordbuf;
297 execute(const char *file, int base)
298 {
299 char *lbuf, *p;
300 long count;
301 long offset = 0;
302 char *next_ptr = NULL;
303 long next_count = 0;
304
305 tln = 0;
306
307 if (prntbuf == NULL) {
308 fw_lPrntBufLen = GBUFSIZ + 1;
309 if ((prntbuf = malloc(fw_lPrntBufLen)) == NULL) {
310 exit(2); /* out of memory - BAIL */
311 }
312 if ((linebuf = malloc(fw_lPrntBufLen)) == NULL) {
313 exit(2); /* out of memory - BAIL */
314 }
315 }
316
317 if (file == NULL) {
318 temp = 0;
319 file = STDIN_FILENAME;
320 } else if ((temp = open(file + base, O_RDONLY)) == -1) {
321 if (!sflag)
322 errmsg("grep: can't open %s\n", file);
323 nsucc = 2;
324 return;
325 }
326
327 /* read in first block of bytes */
328 if ((count = read(temp, prntbuf, GBUFSIZ)) <= 0) {
329 (void) close(temp);
330
331 if (cflag && !qflag) {
332 if (Hflag || (nfile > 1 && !hflag))
333 (void) fprintf(stdout, "%s:", file);
334 if (!rflag)
335 (void) fprintf(stdout, "%lld\n", tln);
336 }
337 return;
338 }
339
340 lnum = 0;
341 ptr = prntbuf;
342 for (;;) {
343 /* look for next newline */
344 if ((ptrend = memchr(ptr + offset, '\n', count)) == NULL) {
345 offset += count;
346
347 /*
348 * shift unused data to the beginning of the buffer
349 */
350 if (ptr > prntbuf) {
351 (void) memmove(prntbuf, ptr, offset);
352 ptr = prntbuf;
409 } else
410 /*
411 * Use record as is
412 */
413 lbuf = ptr;
414
415 /* lflag only once */
416 if ((step(lbuf, expbuf) ^ vflag) && succeed(file) == 1)
417 break;
418
419 if (!nlflag)
420 break;
421
422 ptr = next_ptr;
423 count = next_count;
424 offset = 0;
425 }
426 (void) close(temp);
427
428 if (cflag && !qflag) {
429 if (Hflag || (!hflag && ((nfile > 1) ||
430 (rflag && outfn))))
431 (void) fprintf(stdout, "%s:", file);
432 (void) fprintf(stdout, "%lld\n", tln);
433 }
434 }
435
436 static int
437 succeed(const char *f)
438 {
439 int nchars;
440 nsucc = (nsucc == 2) ? 2 : 1;
441
442 if (qflag) {
443 /* no need to continue */
444 return (1);
445 }
446
447 if (cflag) {
448 tln++;
449 return (0);
450 }
451
452 if (lflag) {
453 (void) fprintf(stdout, "%s\n", f);
454 return (1);
455 }
456
457 if (Hflag || (!hflag && (nfile > 1 || (rflag && outfn)))) {
458 /* print filename */
459 (void) fprintf(stdout, "%s:", f);
460 }
461
462 if (bflag)
463 /* print block number */
464 (void) fprintf(stdout, "%lld:", (offset_t)
465 ((lseek(temp, (off_t)0, SEEK_CUR) - 1) / BLKSIZE));
466
467 if (nflag)
468 /* print line number */
469 (void) fprintf(stdout, "%lld:", lnum);
470
471 if (nlflag) {
472 /* newline at end of line */
473 *ptrend = '\n';
474 nchars = ptrend - ptr + 1;
475 } else {
476 /* don't write sentinel \0 */
477 nchars = ptrend - ptr;
|