668 lines
16 KiB
C
668 lines
16 KiB
C
|
/* $OpenBSD: grep.c,v 1.42 2010/07/02 22:18:03 tedu Exp $ */
|
|||
|
|
|
|||
|
|
/*-
|
|||
|
|
* Copyright (c) 1999 James Howard and Dag-Erling Co<EFBFBD>dan Sm<EFBFBD>rgrav
|
|||
|
|
* Copyright (C) 2008-2009 Gabor Kovesdan <gabor@FreeBSD.org>
|
|||
|
|
* All rights reserved.
|
|||
|
|
*
|
|||
|
|
* Redistribution and use in source and binary forms, with or without
|
|||
|
|
* modification, are permitted provided that the following conditions
|
|||
|
|
* are met:
|
|||
|
|
* 1. Redistributions of source code must retain the above copyright
|
|||
|
|
* notice, this list of conditions and the following disclaimer.
|
|||
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|||
|
|
* notice, this list of conditions and the following disclaimer in the
|
|||
|
|
* documentation and/or other materials provided with the distribution.
|
|||
|
|
*
|
|||
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|||
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|||
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|||
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|||
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|||
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|||
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|||
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|||
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|||
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|||
|
|
* SUCH DAMAGE.
|
|||
|
|
*/
|
|||
|
|
|
|||
|
|
#include <sys/cdefs.h>
|
|||
|
|
__FBSDID("$FreeBSD$");
|
|||
|
|
|
|||
|
|
#include <sys/stat.h>
|
|||
|
|
#include <sys/types.h>
|
|||
|
|
|
|||
|
|
#include <ctype.h>
|
|||
|
|
#include <err.h>
|
|||
|
|
#include <errno.h>
|
|||
|
|
#include <getopt.h>
|
|||
|
|
#include <limits.h>
|
|||
|
|
#include <libgen.h>
|
|||
|
|
#include <locale.h>
|
|||
|
|
#include <stdbool.h>
|
|||
|
|
#include <stdio.h>
|
|||
|
|
#include <stdlib.h>
|
|||
|
|
#include <string.h>
|
|||
|
|
#include <unistd.h>
|
|||
|
|
|
|||
|
|
#include "grep.h"
|
|||
|
|
|
|||
|
|
#ifndef WITHOUT_NLS
|
|||
|
|
#include <nl_types.h>
|
|||
|
|
nl_catd catalog;
|
|||
|
|
#endif
|
|||
|
|
|
|||
|
|
/*
|
|||
|
|
* Default messags to use when NLS is disabled or no catalogue
|
|||
|
|
* is found.
|
|||
|
|
*/
|
|||
|
|
const char *errstr[] = {
|
|||
|
|
"",
|
|||
|
|
/* 1*/ "(standard input)",
|
|||
|
|
/* 2*/ "cannot read bzip2 compressed file",
|
|||
|
|
/* 3*/ "unknown --color option",
|
|||
|
|
/* 4*/ "usage: %s [-abcDEFGHhIiJLlmnOoPqRSsUVvwxZ] [-A num] [-B num] [-C[num]]\n",
|
|||
|
|
/* 5*/ "\t[-e pattern] [-f file] [--binary-files=value] [--color=when]\n",
|
|||
|
|
/* 6*/ "\t[--context[=num]] [--directories=action] [--label] [--line-buffered]\n",
|
|||
|
|
/* 7*/ "\t[--null] [pattern] [file ...]\n",
|
|||
|
|
/* 8*/ "unknown --binary-files option",
|
|||
|
|
/* 9*/ "Binary file %s matches\n",
|
|||
|
|
/*10*/ "%s (BSD grep) %s\n",
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
/* Flags passed to regcomp() and regexec() */
|
|||
|
|
int cflags = 0;
|
|||
|
|
int eflags = REG_STARTEND;
|
|||
|
|
|
|||
|
|
/* Shortcut for matching all cases like empty regex */
|
|||
|
|
bool matchall;
|
|||
|
|
|
|||
|
|
/* Searching patterns */
|
|||
|
|
unsigned int patterns, pattern_sz;
|
|||
|
|
char **pattern;
|
|||
|
|
regex_t *r_pattern;
|
|||
|
|
fastgrep_t *fg_pattern;
|
|||
|
|
|
|||
|
|
/* Filename exclusion/inclusion patterns */
|
|||
|
|
unsigned int epatterns, epattern_sz;
|
|||
|
|
struct epat *epattern;
|
|||
|
|
|
|||
|
|
/* For regex errors */
|
|||
|
|
char re_error[RE_ERROR_BUF + 1];
|
|||
|
|
|
|||
|
|
/* Command-line flags */
|
|||
|
|
unsigned long long Aflag; /* -A x: print x lines trailing each match */
|
|||
|
|
unsigned long long Bflag; /* -B x: print x lines leading each match */
|
|||
|
|
bool Hflag; /* -H: always print file name */
|
|||
|
|
bool Lflag; /* -L: only show names of files with no matches */
|
|||
|
|
bool bflag; /* -b: show block numbers for each match */
|
|||
|
|
bool cflag; /* -c: only show a count of matching lines */
|
|||
|
|
bool hflag; /* -h: don't print filename headers */
|
|||
|
|
bool iflag; /* -i: ignore case */
|
|||
|
|
bool lflag; /* -l: only show names of files with matches */
|
|||
|
|
bool mflag; /* -m x: stop reading the files after x matches */
|
|||
|
|
unsigned long long mcount; /* count for -m */
|
|||
|
|
bool nflag; /* -n: show line numbers in front of matching lines */
|
|||
|
|
bool oflag; /* -o: print only matching part */
|
|||
|
|
bool qflag; /* -q: quiet mode (don't output anything) */
|
|||
|
|
bool sflag; /* -s: silent mode (ignore errors) */
|
|||
|
|
bool vflag; /* -v: only show non-matching lines */
|
|||
|
|
bool wflag; /* -w: pattern must start and end on word boundaries */
|
|||
|
|
bool xflag; /* -x: pattern must match entire line */
|
|||
|
|
bool lbflag; /* --line-buffered */
|
|||
|
|
bool nullflag; /* --null */
|
|||
|
|
bool exclflag; /* --exclude */
|
|||
|
|
char *label; /* --label */
|
|||
|
|
char *color; /* --color */
|
|||
|
|
int grepbehave = GREP_BASIC; /* -EFGP: type of the regex */
|
|||
|
|
int binbehave = BINFILE_BIN; /* -aIU: handling of binary files */
|
|||
|
|
int filebehave = FILE_STDIO; /* -JZ: normal, gzip or bzip2 file */
|
|||
|
|
int devbehave = DEV_GREP; /* -D: handling of devices */
|
|||
|
|
int dirbehave = DIR_GREP; /* -dRr: handling of directories */
|
|||
|
|
int linkbehave = LINK_GREP; /* -OpS: handling of symlinks */
|
|||
|
|
|
|||
|
|
enum {
|
|||
|
|
BIN_OPT = CHAR_MAX + 1,
|
|||
|
|
COLOR_OPT,
|
|||
|
|
HELP_OPT,
|
|||
|
|
MMAP_OPT,
|
|||
|
|
LINEBUF_OPT,
|
|||
|
|
LABEL_OPT,
|
|||
|
|
NULL_OPT,
|
|||
|
|
R_EXCLUDE_OPT,
|
|||
|
|
R_INCLUDE_OPT,
|
|||
|
|
R_DEXCLUDE_OPT,
|
|||
|
|
R_DINCLUDE_OPT
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
/* Housekeeping */
|
|||
|
|
bool first = true; /* flag whether we are processing the first match */
|
|||
|
|
bool prev; /* flag whether or not the previous line matched */
|
|||
|
|
int tail; /* lines left to print */
|
|||
|
|
bool notfound; /* file not found */
|
|||
|
|
|
|||
|
|
extern char *__progname;
|
|||
|
|
|
|||
|
|
/*
|
|||
|
|
* Prints usage information and returns 2.
|
|||
|
|
*/
|
|||
|
|
static void
|
|||
|
|
usage(void)
|
|||
|
|
{
|
|||
|
|
fprintf(stderr, getstr(4), __progname);
|
|||
|
|
fprintf(stderr, "%s", getstr(5));
|
|||
|
|
fprintf(stderr, "%s", getstr(5));
|
|||
|
|
fprintf(stderr, "%s", getstr(6));
|
|||
|
|
fprintf(stderr, "%s", getstr(7));
|
|||
|
|
exit(2);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
static const char *optstr = "0123456789A:B:C:D:EFGHIJLOPSRUVZabcd:e:f:hilm:nopqrsuvwxy";
|
|||
|
|
|
|||
|
|
struct option long_options[] =
|
|||
|
|
{
|
|||
|
|
{"binary-files", required_argument, NULL, BIN_OPT},
|
|||
|
|
{"help", no_argument, NULL, HELP_OPT},
|
|||
|
|
{"mmap", no_argument, NULL, MMAP_OPT},
|
|||
|
|
{"line-buffered", no_argument, NULL, LINEBUF_OPT},
|
|||
|
|
{"label", required_argument, NULL, LABEL_OPT},
|
|||
|
|
{"null", no_argument, NULL, NULL_OPT},
|
|||
|
|
{"color", optional_argument, NULL, COLOR_OPT},
|
|||
|
|
{"colour", optional_argument, NULL, COLOR_OPT},
|
|||
|
|
{"exclude", required_argument, NULL, R_EXCLUDE_OPT},
|
|||
|
|
{"include", required_argument, NULL, R_INCLUDE_OPT},
|
|||
|
|
{"exclude-dir", required_argument, NULL, R_DEXCLUDE_OPT},
|
|||
|
|
{"include-dir", required_argument, NULL, R_DINCLUDE_OPT},
|
|||
|
|
{"after-context", required_argument, NULL, 'A'},
|
|||
|
|
{"text", no_argument, NULL, 'a'},
|
|||
|
|
{"before-context", required_argument, NULL, 'B'},
|
|||
|
|
{"byte-offset", no_argument, NULL, 'b'},
|
|||
|
|
{"context", optional_argument, NULL, 'C'},
|
|||
|
|
{"count", no_argument, NULL, 'c'},
|
|||
|
|
{"devices", required_argument, NULL, 'D'},
|
|||
|
|
{"directories", required_argument, NULL, 'd'},
|
|||
|
|
{"extended-regexp", no_argument, NULL, 'E'},
|
|||
|
|
{"regexp", required_argument, NULL, 'e'},
|
|||
|
|
{"fixed-strings", no_argument, NULL, 'F'},
|
|||
|
|
{"file", required_argument, NULL, 'f'},
|
|||
|
|
{"basic-regexp", no_argument, NULL, 'G'},
|
|||
|
|
{"no-filename", no_argument, NULL, 'h'},
|
|||
|
|
{"with-filename", no_argument, NULL, 'H'},
|
|||
|
|
{"ignore-case", no_argument, NULL, 'i'},
|
|||
|
|
{"bz2decompress", no_argument, NULL, 'J'},
|
|||
|
|
{"files-with-matches", no_argument, NULL, 'l'},
|
|||
|
|
{"files-without-match", no_argument, NULL, 'L'},
|
|||
|
|
{"max-count", required_argument, NULL, 'm'},
|
|||
|
|
{"line-number", no_argument, NULL, 'n'},
|
|||
|
|
{"only-matching", no_argument, NULL, 'o'},
|
|||
|
|
{"quiet", no_argument, NULL, 'q'},
|
|||
|
|
{"silent", no_argument, NULL, 'q'},
|
|||
|
|
{"recursive", no_argument, NULL, 'r'},
|
|||
|
|
{"no-messages", no_argument, NULL, 's'},
|
|||
|
|
{"binary", no_argument, NULL, 'U'},
|
|||
|
|
{"unix-byte-offsets", no_argument, NULL, 'u'},
|
|||
|
|
{"invert-match", no_argument, NULL, 'v'},
|
|||
|
|
{"version", no_argument, NULL, 'V'},
|
|||
|
|
{"word-regexp", no_argument, NULL, 'w'},
|
|||
|
|
{"line-regexp", no_argument, NULL, 'x'},
|
|||
|
|
{"decompress", no_argument, NULL, 'Z'},
|
|||
|
|
{NULL, no_argument, NULL, 0}
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
/*
|
|||
|
|
* Adds a searching pattern to the internal array.
|
|||
|
|
*/
|
|||
|
|
static void
|
|||
|
|
add_pattern(char *pat, size_t len)
|
|||
|
|
{
|
|||
|
|
|
|||
|
|
/* Check if we can do a shortcut */
|
|||
|
|
if (len == 0 || matchall) {
|
|||
|
|
matchall = true;
|
|||
|
|
return;
|
|||
|
|
}
|
|||
|
|
/* Increase size if necessary */
|
|||
|
|
if (patterns == pattern_sz) {
|
|||
|
|
pattern_sz *= 2;
|
|||
|
|
pattern = grep_realloc(pattern, ++pattern_sz *
|
|||
|
|
sizeof(*pattern));
|
|||
|
|
}
|
|||
|
|
if (len > 0 && pat[len - 1] == '\n')
|
|||
|
|
--len;
|
|||
|
|
/* pat may not be NUL-terminated */
|
|||
|
|
pattern[patterns] = grep_malloc(len + 1);
|
|||
|
|
memcpy(pattern[patterns], pat, len);
|
|||
|
|
pattern[patterns][len] = '\0';
|
|||
|
|
++patterns;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/*
|
|||
|
|
* Adds an include/exclude pattern to the internal array.
|
|||
|
|
*/
|
|||
|
|
static void
|
|||
|
|
add_epattern(char *pat, size_t len, int type, int mode)
|
|||
|
|
{
|
|||
|
|
|
|||
|
|
/* Increase size if necessary */
|
|||
|
|
if (epatterns == epattern_sz) {
|
|||
|
|
epattern_sz *= 2;
|
|||
|
|
epattern = grep_realloc(epattern, ++epattern_sz *
|
|||
|
|
sizeof(struct epat));
|
|||
|
|
}
|
|||
|
|
if (len > 0 && pat[len - 1] == '\n')
|
|||
|
|
--len;
|
|||
|
|
epattern[epatterns].pat = grep_malloc(len + 1);
|
|||
|
|
memcpy(epattern[epatterns].pat, pat, len);
|
|||
|
|
epattern[epatterns].pat[len] = '\0';
|
|||
|
|
epattern[epatterns].type = type;
|
|||
|
|
epattern[epatterns].mode = mode;
|
|||
|
|
++epatterns;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/*
|
|||
|
|
* Reads searching patterns from a file and adds them with add_pattern().
|
|||
|
|
*/
|
|||
|
|
static void
|
|||
|
|
read_patterns(const char *fn)
|
|||
|
|
{
|
|||
|
|
FILE *f;
|
|||
|
|
char *line;
|
|||
|
|
size_t len;
|
|||
|
|
|
|||
|
|
if ((f = fopen(fn, "r")) == NULL)
|
|||
|
|
err(2, "%s", fn);
|
|||
|
|
while ((line = fgetln(f, &len)) != NULL)
|
|||
|
|
add_pattern(line, *line == '\n' ? 0 : len);
|
|||
|
|
if (ferror(f))
|
|||
|
|
err(2, "%s", fn);
|
|||
|
|
fclose(f);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
int
|
|||
|
|
main(int argc, char *argv[])
|
|||
|
|
{
|
|||
|
|
char **aargv, **eargv, *eopts;
|
|||
|
|
char *ep;
|
|||
|
|
unsigned long long l;
|
|||
|
|
unsigned int aargc, eargc, i;
|
|||
|
|
int c, lastc, needpattern, newarg, prevoptind;
|
|||
|
|
|
|||
|
|
setlocale(LC_ALL, "");
|
|||
|
|
|
|||
|
|
#ifndef WITHOUT_NLS
|
|||
|
|
catalog = catopen("grep", NL_CAT_LOCALE);
|
|||
|
|
#endif
|
|||
|
|
|
|||
|
|
/* Check what is the program name of the binary. In this
|
|||
|
|
way we can have all the funcionalities in one binary
|
|||
|
|
without the need of scripting and using ugly hacks. */
|
|||
|
|
switch (__progname[0]) {
|
|||
|
|
case 'e':
|
|||
|
|
grepbehave = GREP_EXTENDED;
|
|||
|
|
break;
|
|||
|
|
case 'f':
|
|||
|
|
grepbehave = GREP_FIXED;
|
|||
|
|
break;
|
|||
|
|
case 'g':
|
|||
|
|
grepbehave = GREP_BASIC;
|
|||
|
|
break;
|
|||
|
|
case 'z':
|
|||
|
|
filebehave = FILE_GZIP;
|
|||
|
|
switch(__progname[1]) {
|
|||
|
|
case 'e':
|
|||
|
|
grepbehave = GREP_EXTENDED;
|
|||
|
|
break;
|
|||
|
|
case 'f':
|
|||
|
|
grepbehave = GREP_FIXED;
|
|||
|
|
break;
|
|||
|
|
case 'g':
|
|||
|
|
grepbehave = GREP_BASIC;
|
|||
|
|
break;
|
|||
|
|
}
|
|||
|
|
break;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
lastc = '\0';
|
|||
|
|
newarg = 1;
|
|||
|
|
prevoptind = 1;
|
|||
|
|
needpattern = 1;
|
|||
|
|
|
|||
|
|
eopts = getenv("GREP_OPTIONS");
|
|||
|
|
|
|||
|
|
eargc = 1;
|
|||
|
|
if (eopts != NULL) {
|
|||
|
|
char *str;
|
|||
|
|
|
|||
|
|
for(i = 0; i < strlen(eopts); i++)
|
|||
|
|
if (eopts[i] == ' ')
|
|||
|
|
eargc++;
|
|||
|
|
|
|||
|
|
eargv = (char **)grep_malloc(sizeof(char *) * (eargc + 1));
|
|||
|
|
|
|||
|
|
str = strtok(eopts, " ");
|
|||
|
|
eargc = 0;
|
|||
|
|
|
|||
|
|
while(str != NULL) {
|
|||
|
|
eargv[++eargc] = (char *)grep_malloc(sizeof(char) *
|
|||
|
|
(strlen(str) + 1));
|
|||
|
|
strlcpy(eargv[eargc], str, strlen(str) + 1);
|
|||
|
|
str = strtok(NULL, " ");
|
|||
|
|
}
|
|||
|
|
eargv[++eargc] = NULL;
|
|||
|
|
|
|||
|
|
aargv = (char **)grep_malloc(sizeof(char *) *
|
|||
|
|
(eargc + argc + 1));
|
|||
|
|
aargv[0] = argv[0];
|
|||
|
|
|
|||
|
|
for(i = 1; i < eargc; i++)
|
|||
|
|
aargv[i] = eargv[i];
|
|||
|
|
for(int j = 1; j < argc; j++)
|
|||
|
|
aargv[i++] = argv[j];
|
|||
|
|
|
|||
|
|
aargc = eargc + argc - 1;
|
|||
|
|
|
|||
|
|
} else {
|
|||
|
|
aargv = argv;
|
|||
|
|
aargc = argc;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
while (((c = getopt_long(aargc, aargv, optstr, long_options, NULL)) !=
|
|||
|
|
-1)) {
|
|||
|
|
switch (c) {
|
|||
|
|
case '0': case '1': case '2': case '3': case '4':
|
|||
|
|
case '5': case '6': case '7': case '8': case '9':
|
|||
|
|
if (newarg || !isdigit(lastc))
|
|||
|
|
Aflag = 0;
|
|||
|
|
else if (Aflag > LLONG_MAX / 10) {
|
|||
|
|
errno = ERANGE;
|
|||
|
|
err(2, NULL);
|
|||
|
|
}
|
|||
|
|
Aflag = Bflag = (Aflag * 10) + (c - '0');
|
|||
|
|
break;
|
|||
|
|
case 'C':
|
|||
|
|
if (optarg == NULL) {
|
|||
|
|
Aflag = Bflag = 2;
|
|||
|
|
break;
|
|||
|
|
}
|
|||
|
|
/* FALLTHROUGH */
|
|||
|
|
case 'A':
|
|||
|
|
/* FALLTHROUGH */
|
|||
|
|
case 'B':
|
|||
|
|
errno = 0;
|
|||
|
|
l = strtoull(optarg, &ep, 10);
|
|||
|
|
if (((errno == ERANGE) && (l == ULLONG_MAX)) ||
|
|||
|
|
((errno == EINVAL) && (l == 0)))
|
|||
|
|
err(2, NULL);
|
|||
|
|
else if (ep[0] != '\0') {
|
|||
|
|
errno = EINVAL;
|
|||
|
|
err(2, NULL);
|
|||
|
|
}
|
|||
|
|
if (c == 'A')
|
|||
|
|
Aflag = l;
|
|||
|
|
else if (c == 'B')
|
|||
|
|
Bflag = l;
|
|||
|
|
else
|
|||
|
|
Aflag = Bflag = l;
|
|||
|
|
break;
|
|||
|
|
case 'a':
|
|||
|
|
binbehave = BINFILE_TEXT;
|
|||
|
|
break;
|
|||
|
|
case 'b':
|
|||
|
|
bflag = true;
|
|||
|
|
break;
|
|||
|
|
case 'c':
|
|||
|
|
cflag = true;
|
|||
|
|
break;
|
|||
|
|
case 'D':
|
|||
|
|
if (strcmp(optarg, "skip") == 0)
|
|||
|
|
devbehave = DEV_SKIP;
|
|||
|
|
break;
|
|||
|
|
case 'd':
|
|||
|
|
if (strcmp("recurse", optarg) == 0) {
|
|||
|
|
Hflag = true;
|
|||
|
|
dirbehave = DIR_RECURSE;
|
|||
|
|
} else if (strcmp("skip", optarg) == 0)
|
|||
|
|
dirbehave = DIR_SKIP;
|
|||
|
|
else if (strcmp("read", optarg) != 0) {
|
|||
|
|
errno = EINVAL;
|
|||
|
|
err(2, NULL);
|
|||
|
|
}
|
|||
|
|
break;
|
|||
|
|
case 'E':
|
|||
|
|
grepbehave = GREP_EXTENDED;
|
|||
|
|
break;
|
|||
|
|
case 'e':
|
|||
|
|
add_pattern(optarg, strlen(optarg));
|
|||
|
|
needpattern = 0;
|
|||
|
|
break;
|
|||
|
|
case 'F':
|
|||
|
|
grepbehave = GREP_FIXED;
|
|||
|
|
break;
|
|||
|
|
case 'f':
|
|||
|
|
read_patterns(optarg);
|
|||
|
|
needpattern = 0;
|
|||
|
|
break;
|
|||
|
|
case 'G':
|
|||
|
|
grepbehave = GREP_BASIC;
|
|||
|
|
break;
|
|||
|
|
case 'H':
|
|||
|
|
Hflag = true;
|
|||
|
|
break;
|
|||
|
|
case 'h':
|
|||
|
|
Hflag = false;
|
|||
|
|
hflag = true;
|
|||
|
|
break;
|
|||
|
|
case 'I':
|
|||
|
|
binbehave = BINFILE_SKIP;
|
|||
|
|
break;
|
|||
|
|
case 'i':
|
|||
|
|
case 'y':
|
|||
|
|
iflag = true;
|
|||
|
|
cflags |= REG_ICASE;
|
|||
|
|
break;
|
|||
|
|
case 'J':
|
|||
|
|
filebehave = FILE_BZIP;
|
|||
|
|
break;
|
|||
|
|
case 'L':
|
|||
|
|
lflag = false;
|
|||
|
|
Lflag = qflag = true;
|
|||
|
|
break;
|
|||
|
|
case 'l':
|
|||
|
|
Lflag = false;
|
|||
|
|
lflag = qflag = true;
|
|||
|
|
break;
|
|||
|
|
case 'm':
|
|||
|
|
mflag = true;
|
|||
|
|
errno = 0;
|
|||
|
|
mcount = strtoull(optarg, &ep, 10);
|
|||
|
|
if (((errno == ERANGE) && (mcount == ULLONG_MAX)) ||
|
|||
|
|
((errno == EINVAL) && (mcount == 0)))
|
|||
|
|
err(2, NULL);
|
|||
|
|
else if (ep[0] != '\0') {
|
|||
|
|
errno = EINVAL;
|
|||
|
|
err(2, NULL);
|
|||
|
|
}
|
|||
|
|
break;
|
|||
|
|
case 'n':
|
|||
|
|
nflag = true;
|
|||
|
|
break;
|
|||
|
|
case 'O':
|
|||
|
|
linkbehave = LINK_EXPLICIT;
|
|||
|
|
break;
|
|||
|
|
case 'o':
|
|||
|
|
oflag = true;
|
|||
|
|
break;
|
|||
|
|
case 'p':
|
|||
|
|
linkbehave = LINK_SKIP;
|
|||
|
|
break;
|
|||
|
|
case 'q':
|
|||
|
|
qflag = true;
|
|||
|
|
break;
|
|||
|
|
case 'S':
|
|||
|
|
linkbehave = LINK_GREP;
|
|||
|
|
break;
|
|||
|
|
case 'R':
|
|||
|
|
case 'r':
|
|||
|
|
dirbehave = DIR_RECURSE;
|
|||
|
|
Hflag = true;
|
|||
|
|
break;
|
|||
|
|
case 's':
|
|||
|
|
sflag = true;
|
|||
|
|
break;
|
|||
|
|
case 'U':
|
|||
|
|
binbehave = BINFILE_BIN;
|
|||
|
|
break;
|
|||
|
|
case 'u':
|
|||
|
|
case MMAP_OPT:
|
|||
|
|
/* noop, compatibility */
|
|||
|
|
break;
|
|||
|
|
case 'V':
|
|||
|
|
printf(getstr(10), __progname, VERSION);
|
|||
|
|
exit(0);
|
|||
|
|
case 'v':
|
|||
|
|
vflag = true;
|
|||
|
|
break;
|
|||
|
|
case 'w':
|
|||
|
|
wflag = true;
|
|||
|
|
break;
|
|||
|
|
case 'x':
|
|||
|
|
xflag = true;
|
|||
|
|
break;
|
|||
|
|
case 'Z':
|
|||
|
|
filebehave = FILE_GZIP;
|
|||
|
|
break;
|
|||
|
|
case BIN_OPT:
|
|||
|
|
if (strcmp("binary", optarg) == 0)
|
|||
|
|
binbehave = BINFILE_BIN;
|
|||
|
|
else if (strcmp("without-match", optarg) == 0)
|
|||
|
|
binbehave = BINFILE_SKIP;
|
|||
|
|
else if (strcmp("text", optarg) == 0)
|
|||
|
|
binbehave = BINFILE_TEXT;
|
|||
|
|
else
|
|||
|
|
errx(2, "%s", getstr(8));
|
|||
|
|
break;
|
|||
|
|
case COLOR_OPT:
|
|||
|
|
if (optarg == NULL || strcmp("auto", optarg) == 0 ||
|
|||
|
|
strcmp("always", optarg) == 0 ) {
|
|||
|
|
color = getenv("GREP_COLOR");
|
|||
|
|
if (color == NULL) {
|
|||
|
|
color = grep_malloc(sizeof(char) * 6);
|
|||
|
|
strcpy(color, "01;31");
|
|||
|
|
}
|
|||
|
|
} else if (strcmp("never", optarg) == 0)
|
|||
|
|
color = NULL;
|
|||
|
|
else
|
|||
|
|
errx(2, "%s", getstr(3));
|
|||
|
|
break;
|
|||
|
|
case LABEL_OPT:
|
|||
|
|
label = optarg;
|
|||
|
|
break;
|
|||
|
|
case LINEBUF_OPT:
|
|||
|
|
lbflag = true;
|
|||
|
|
break;
|
|||
|
|
case NULL_OPT:
|
|||
|
|
nullflag = true;
|
|||
|
|
break;
|
|||
|
|
case R_INCLUDE_OPT:
|
|||
|
|
exclflag = true;
|
|||
|
|
add_epattern(basename(optarg), strlen(basename(optarg)),
|
|||
|
|
FILE_PAT, INCL_PAT);
|
|||
|
|
break;
|
|||
|
|
case R_EXCLUDE_OPT:
|
|||
|
|
exclflag = true;
|
|||
|
|
add_epattern(basename(optarg), strlen(basename(optarg)),
|
|||
|
|
FILE_PAT, EXCL_PAT);
|
|||
|
|
break;
|
|||
|
|
case R_DINCLUDE_OPT:
|
|||
|
|
exclflag = true;
|
|||
|
|
add_epattern(basename(optarg), strlen(basename(optarg)),
|
|||
|
|
DIR_PAT, INCL_PAT);
|
|||
|
|
break;
|
|||
|
|
case R_DEXCLUDE_OPT:
|
|||
|
|
exclflag = true;
|
|||
|
|
add_epattern(basename(optarg), strlen(basename(optarg)),
|
|||
|
|
DIR_PAT, EXCL_PAT);
|
|||
|
|
break;
|
|||
|
|
case HELP_OPT:
|
|||
|
|
default:
|
|||
|
|
usage();
|
|||
|
|
}
|
|||
|
|
lastc = c;
|
|||
|
|
newarg = optind != prevoptind;
|
|||
|
|
prevoptind = optind;
|
|||
|
|
}
|
|||
|
|
aargc -= optind;
|
|||
|
|
aargv += optind;
|
|||
|
|
|
|||
|
|
/* Fail if we don't have any pattern */
|
|||
|
|
if (aargc == 0 && needpattern)
|
|||
|
|
usage();
|
|||
|
|
|
|||
|
|
/* Process patterns from command line */
|
|||
|
|
if (aargc != 0 && needpattern) {
|
|||
|
|
add_pattern(*aargv, strlen(*aargv));
|
|||
|
|
--aargc;
|
|||
|
|
++aargv;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
switch (grepbehave) {
|
|||
|
|
case GREP_FIXED:
|
|||
|
|
case GREP_BASIC:
|
|||
|
|
break;
|
|||
|
|
case GREP_EXTENDED:
|
|||
|
|
cflags |= REG_EXTENDED;
|
|||
|
|
break;
|
|||
|
|
default:
|
|||
|
|
/* NOTREACHED */
|
|||
|
|
usage();
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
fg_pattern = grep_calloc(patterns, sizeof(*fg_pattern));
|
|||
|
|
r_pattern = grep_calloc(patterns, sizeof(*r_pattern));
|
|||
|
|
/*
|
|||
|
|
* XXX: fgrepcomp() and fastcomp() are workarounds for regexec() performance.
|
|||
|
|
* Optimizations should be done there.
|
|||
|
|
*/
|
|||
|
|
/* Check if cheating is allowed (always is for fgrep). */
|
|||
|
|
if (grepbehave == GREP_FIXED) {
|
|||
|
|
for (i = 0; i < patterns; ++i)
|
|||
|
|
fgrepcomp(&fg_pattern[i], pattern[i]);
|
|||
|
|
} else {
|
|||
|
|
for (i = 0; i < patterns; ++i) {
|
|||
|
|
if (fastcomp(&fg_pattern[i], pattern[i])) {
|
|||
|
|
/* Fall back to full regex library */
|
|||
|
|
c = regcomp(&r_pattern[i], pattern[i], cflags);
|
|||
|
|
if (c != 0) {
|
|||
|
|
regerror(c, &r_pattern[i], re_error,
|
|||
|
|
RE_ERROR_BUF);
|
|||
|
|
errx(2, "%s", re_error);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
if (lbflag)
|
|||
|
|
setlinebuf(stdout);
|
|||
|
|
|
|||
|
|
if ((aargc == 0 || aargc == 1) && !Hflag)
|
|||
|
|
hflag = true;
|
|||
|
|
|
|||
|
|
if (aargc == 0)
|
|||
|
|
exit(!procfile("-"));
|
|||
|
|
|
|||
|
|
if (dirbehave == DIR_RECURSE)
|
|||
|
|
c = grep_tree(aargv);
|
|||
|
|
else
|
|||
|
|
for (c = 0; aargc--; ++aargv)
|
|||
|
|
c+= procfile(*aargv);
|
|||
|
|
|
|||
|
|
#ifndef WITHOUT_NLS
|
|||
|
|
catclose(catalog);
|
|||
|
|
#endif
|
|||
|
|
|
|||
|
|
/* Find out the correct return value according to the
|
|||
|
|
results and the command line option. */
|
|||
|
|
exit(c ? (notfound ? (qflag ? 0 : 2) : 0) : (notfound ? 2 : 1));
|
|||
|
|
}
|