38325e2ab8
When an empty pattern is encountered in the pattern list, I had previously broken bsdgrep to count that as a "match all" and ignore any other patterns in the list. This commit rectifies that mistake, among others: - The -v flag semantics were not quite right; lines matched should have been counted differently based on whether the -v flag was set or not. procline now definitively returns whether it's matched or not, and interpreting that result has been kicked up a level. - Empty patterns with the -x flag was broken similarly to empty patterns with the -w flag. The former is a whole-line match and should be more strict, only matching blank lines. No -x and no -w will will match the empty string at the beginning of each line. - The exit code with -L was broken, w.r.t. modern grep. Modern grap will exit(0) if any file that didn't match was output, so our interpretation was simply backwards. The new interpretation makes sense to me. Tests updated and added to try and catch some of this. This misbehavior was found by autoconf while fixing ports found in PR 229925 expecting either a more sane or a more GNU-like sed. MFC after: 1 week
737 lines
18 KiB
C
737 lines
18 KiB
C
/* $NetBSD: grep.c,v 1.6 2011/04/18 03:48:23 joerg Exp $ */
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/* $FreeBSD$ */
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/* $OpenBSD: grep.c,v 1.42 2010/07/02 22:18:03 tedu Exp $ */
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/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 1999 James Howard and Dag-Erling Coïdan Smørgrav
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* Copyright (C) 2008-2009 Gabor Kovesdan <gabor@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <ctype.h>
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#include <err.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <getopt.h>
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#include <limits.h>
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#include <libgen.h>
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#include <locale.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "grep.h"
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const char *errstr[] = {
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"",
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/* 1*/ "(standard input)",
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/* 2*/ "unknown %s option",
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/* 3*/ "usage: %s [-abcDEFGHhIiLlmnOoPqRSsUVvwxz] [-A num] [-B num] [-C[num]]\n",
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/* 4*/ "\t[-e pattern] [-f file] [--binary-files=value] [--color=when]\n",
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/* 5*/ "\t[--context[=num]] [--directories=action] [--label] [--line-buffered]\n",
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/* 6*/ "\t[--null] [pattern] [file ...]\n",
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/* 7*/ "Binary file %s matches\n",
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/* 8*/ "%s (BSD grep) %s\n",
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/* 9*/ "%s (BSD grep, GNU compatible) %s\n",
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};
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/* Flags passed to regcomp() and regexec() */
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int cflags = REG_NOSUB | REG_NEWLINE;
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int eflags = REG_STARTEND;
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/* XXX TODO: Get rid of this flag.
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* matchall is a gross hack that means that an empty pattern was passed to us.
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* It is a necessary evil at the moment because our regex(3) implementation
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* does not allow for empty patterns, as supported by POSIX's definition of
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* grammar for BREs/EREs. When libregex becomes available, it would be wise
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* to remove this and let regex(3) handle the dirty details of empty patterns.
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*/
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bool matchall;
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/* Searching patterns */
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unsigned int patterns;
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static unsigned int pattern_sz;
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struct pat *pattern;
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regex_t *r_pattern;
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/* Filename exclusion/inclusion patterns */
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unsigned int fpatterns, dpatterns;
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static unsigned int fpattern_sz, dpattern_sz;
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struct epat *dpattern, *fpattern;
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/* For regex errors */
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char re_error[RE_ERROR_BUF + 1];
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/* Command-line flags */
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long long Aflag; /* -A x: print x lines trailing each match */
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long long Bflag; /* -B x: print x lines leading each match */
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bool Hflag; /* -H: always print file name */
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bool Lflag; /* -L: only show names of files with no matches */
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bool bflag; /* -b: show block numbers for each match */
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bool cflag; /* -c: only show a count of matching lines */
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bool hflag; /* -h: don't print filename headers */
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bool iflag; /* -i: ignore case */
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bool lflag; /* -l: only show names of files with matches */
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bool mflag; /* -m x: stop reading the files after x matches */
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long long mcount; /* count for -m */
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long long mlimit; /* requested value for -m */
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char fileeol; /* indicator for eol */
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bool nflag; /* -n: show line numbers in front of matching lines */
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bool oflag; /* -o: print only matching part */
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bool qflag; /* -q: quiet mode (don't output anything) */
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bool sflag; /* -s: silent mode (ignore errors) */
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bool vflag; /* -v: only show non-matching lines */
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bool wflag; /* -w: pattern must start and end on word boundaries */
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bool xflag; /* -x: pattern must match entire line */
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bool lbflag; /* --line-buffered */
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bool nullflag; /* --null */
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char *label; /* --label */
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const char *color; /* --color */
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int grepbehave = GREP_BASIC; /* -EFGP: type of the regex */
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int binbehave = BINFILE_BIN; /* -aIU: handling of binary files */
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int filebehave = FILE_STDIO;
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int devbehave = DEV_READ; /* -D: handling of devices */
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int dirbehave = DIR_READ; /* -dRr: handling of directories */
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int linkbehave = LINK_READ; /* -OpS: handling of symlinks */
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bool dexclude, dinclude; /* --exclude-dir and --include-dir */
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bool fexclude, finclude; /* --exclude and --include */
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enum {
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BIN_OPT = CHAR_MAX + 1,
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COLOR_OPT,
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HELP_OPT,
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MMAP_OPT,
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LINEBUF_OPT,
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LABEL_OPT,
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NULL_OPT,
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R_EXCLUDE_OPT,
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R_INCLUDE_OPT,
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R_DEXCLUDE_OPT,
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R_DINCLUDE_OPT
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};
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static inline const char *init_color(const char *);
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/* Housekeeping */
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bool file_err; /* file reading error */
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/*
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* Prints usage information and returns 2.
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*/
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static void
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usage(void)
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{
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fprintf(stderr, errstr[3], getprogname());
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fprintf(stderr, "%s", errstr[4]);
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fprintf(stderr, "%s", errstr[5]);
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fprintf(stderr, "%s", errstr[6]);
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exit(2);
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}
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static const char *optstr = "0123456789A:B:C:D:EFGHILOPSRUVabcd:e:f:hilm:nopqrsuvwxyz";
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static const struct option long_options[] =
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{
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{"binary-files", required_argument, NULL, BIN_OPT},
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{"help", no_argument, NULL, HELP_OPT},
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{"mmap", no_argument, NULL, MMAP_OPT},
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{"line-buffered", no_argument, NULL, LINEBUF_OPT},
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{"label", required_argument, NULL, LABEL_OPT},
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{"null", no_argument, NULL, NULL_OPT},
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{"color", optional_argument, NULL, COLOR_OPT},
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{"colour", optional_argument, NULL, COLOR_OPT},
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{"exclude", required_argument, NULL, R_EXCLUDE_OPT},
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{"include", required_argument, NULL, R_INCLUDE_OPT},
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{"exclude-dir", required_argument, NULL, R_DEXCLUDE_OPT},
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{"include-dir", required_argument, NULL, R_DINCLUDE_OPT},
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{"after-context", required_argument, NULL, 'A'},
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{"text", no_argument, NULL, 'a'},
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{"before-context", required_argument, NULL, 'B'},
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{"byte-offset", no_argument, NULL, 'b'},
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{"context", optional_argument, NULL, 'C'},
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{"count", no_argument, NULL, 'c'},
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{"devices", required_argument, NULL, 'D'},
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{"directories", required_argument, NULL, 'd'},
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{"extended-regexp", no_argument, NULL, 'E'},
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{"regexp", required_argument, NULL, 'e'},
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{"fixed-strings", no_argument, NULL, 'F'},
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{"file", required_argument, NULL, 'f'},
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{"basic-regexp", no_argument, NULL, 'G'},
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{"no-filename", no_argument, NULL, 'h'},
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{"with-filename", no_argument, NULL, 'H'},
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{"ignore-case", no_argument, NULL, 'i'},
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{"files-with-matches", no_argument, NULL, 'l'},
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{"files-without-match", no_argument, NULL, 'L'},
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{"max-count", required_argument, NULL, 'm'},
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{"line-number", no_argument, NULL, 'n'},
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{"only-matching", no_argument, NULL, 'o'},
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{"quiet", no_argument, NULL, 'q'},
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{"silent", no_argument, NULL, 'q'},
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{"recursive", no_argument, NULL, 'r'},
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{"no-messages", no_argument, NULL, 's'},
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{"binary", no_argument, NULL, 'U'},
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{"unix-byte-offsets", no_argument, NULL, 'u'},
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{"invert-match", no_argument, NULL, 'v'},
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{"version", no_argument, NULL, 'V'},
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{"word-regexp", no_argument, NULL, 'w'},
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{"line-regexp", no_argument, NULL, 'x'},
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{"null-data", no_argument, NULL, 'z'},
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{NULL, no_argument, NULL, 0}
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};
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/*
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* Adds a searching pattern to the internal array.
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*/
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static void
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add_pattern(char *pat, size_t len)
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{
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/* Check if we can do a shortcut */
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if (len == 0) {
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matchall = true;
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return;
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}
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/* Increase size if necessary */
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if (patterns == pattern_sz) {
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pattern_sz *= 2;
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pattern = grep_realloc(pattern, ++pattern_sz *
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sizeof(struct pat));
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}
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if (len > 0 && pat[len - 1] == '\n')
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--len;
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/* pat may not be NUL-terminated */
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pattern[patterns].pat = grep_malloc(len + 1);
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memcpy(pattern[patterns].pat, pat, len);
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pattern[patterns].len = len;
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pattern[patterns].pat[len] = '\0';
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++patterns;
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}
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/*
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* Adds a file include/exclude pattern to the internal array.
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*/
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static void
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add_fpattern(const char *pat, int mode)
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{
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/* Increase size if necessary */
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if (fpatterns == fpattern_sz) {
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fpattern_sz *= 2;
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fpattern = grep_realloc(fpattern, ++fpattern_sz *
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sizeof(struct epat));
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}
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fpattern[fpatterns].pat = grep_strdup(pat);
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fpattern[fpatterns].mode = mode;
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++fpatterns;
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}
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/*
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* Adds a directory include/exclude pattern to the internal array.
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*/
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static void
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add_dpattern(const char *pat, int mode)
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{
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/* Increase size if necessary */
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if (dpatterns == dpattern_sz) {
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dpattern_sz *= 2;
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dpattern = grep_realloc(dpattern, ++dpattern_sz *
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sizeof(struct epat));
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}
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dpattern[dpatterns].pat = grep_strdup(pat);
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dpattern[dpatterns].mode = mode;
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++dpatterns;
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}
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/*
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* Reads searching patterns from a file and adds them with add_pattern().
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*/
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static void
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read_patterns(const char *fn)
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{
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struct stat st;
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FILE *f;
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char *line;
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size_t len;
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ssize_t rlen;
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if (strcmp(fn, "-") == 0)
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f = stdin;
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else if ((f = fopen(fn, "r")) == NULL)
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err(2, "%s", fn);
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if ((fstat(fileno(f), &st) == -1) || (S_ISDIR(st.st_mode))) {
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fclose(f);
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return;
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}
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len = 0;
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line = NULL;
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while ((rlen = getline(&line, &len, f)) != -1) {
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if (line[0] == '\0')
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continue;
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add_pattern(line, line[0] == '\n' ? 0 : (size_t)rlen);
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}
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free(line);
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if (ferror(f))
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err(2, "%s", fn);
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if (strcmp(fn, "-") != 0)
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fclose(f);
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}
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static inline const char *
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init_color(const char *d)
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{
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char *c;
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c = getenv("GREP_COLOR");
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return (c != NULL && c[0] != '\0' ? c : d);
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}
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int
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main(int argc, char *argv[])
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{
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char **aargv, **eargv, *eopts;
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char *ep;
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const char *pn;
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long long l;
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unsigned int aargc, eargc, i;
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int c, lastc, needpattern, newarg, prevoptind;
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bool matched;
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setlocale(LC_ALL, "");
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/*
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* Check how we've bene invoked to determine the behavior we should
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* exhibit. In this way we can have all the functionalities in one
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* binary without the need of scripting and using ugly hacks.
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*/
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pn = getprogname();
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switch (pn[0]) {
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case 'e':
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grepbehave = GREP_EXTENDED;
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break;
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case 'f':
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grepbehave = GREP_FIXED;
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break;
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case 'r':
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dirbehave = DIR_RECURSE;
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Hflag = true;
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break;
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}
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lastc = '\0';
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newarg = 1;
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prevoptind = 1;
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needpattern = 1;
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fileeol = '\n';
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eopts = getenv("GREP_OPTIONS");
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/* support for extra arguments in GREP_OPTIONS */
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eargc = 0;
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if (eopts != NULL && eopts[0] != '\0') {
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char *str;
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/* make an estimation of how many extra arguments we have */
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for (unsigned int j = 0; j < strlen(eopts); j++)
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if (eopts[j] == ' ')
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eargc++;
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eargv = (char **)grep_malloc(sizeof(char *) * (eargc + 1));
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eargc = 0;
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/* parse extra arguments */
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while ((str = strsep(&eopts, " ")) != NULL)
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if (str[0] != '\0')
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eargv[eargc++] = grep_strdup(str);
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aargv = (char **)grep_calloc(eargc + argc + 1,
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sizeof(char *));
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aargv[0] = argv[0];
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for (i = 0; i < eargc; i++)
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aargv[i + 1] = eargv[i];
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for (int j = 1; j < argc; j++, i++)
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aargv[i + 1] = argv[j];
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aargc = eargc + argc;
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} else {
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aargv = argv;
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aargc = argc;
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}
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while (((c = getopt_long(aargc, aargv, optstr, long_options, NULL)) !=
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-1)) {
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switch (c) {
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case '0': case '1': case '2': case '3': case '4':
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case '5': case '6': case '7': case '8': case '9':
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if (newarg || !isdigit(lastc))
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Aflag = 0;
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else if (Aflag > LLONG_MAX / 10 - 1) {
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errno = ERANGE;
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err(2, NULL);
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}
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Aflag = Bflag = (Aflag * 10) + (c - '0');
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break;
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case 'C':
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if (optarg == NULL) {
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Aflag = Bflag = 2;
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break;
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}
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/* FALLTHROUGH */
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case 'A':
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/* FALLTHROUGH */
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case 'B':
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errno = 0;
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l = strtoll(optarg, &ep, 10);
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if (errno == ERANGE || errno == EINVAL)
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err(2, NULL);
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else if (ep[0] != '\0') {
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errno = EINVAL;
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err(2, NULL);
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} else if (l < 0) {
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errno = EINVAL;
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err(2, "context argument must be non-negative");
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}
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if (c == 'A')
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Aflag = l;
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else if (c == 'B')
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Bflag = l;
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else
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Aflag = Bflag = l;
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break;
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case 'a':
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binbehave = BINFILE_TEXT;
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break;
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case 'b':
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bflag = true;
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break;
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case 'c':
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cflag = true;
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break;
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case 'D':
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if (strcasecmp(optarg, "skip") == 0)
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devbehave = DEV_SKIP;
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else if (strcasecmp(optarg, "read") == 0)
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devbehave = DEV_READ;
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else
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errx(2, errstr[2], "--devices");
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break;
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case 'd':
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if (strcasecmp("recurse", optarg) == 0) {
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Hflag = true;
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dirbehave = DIR_RECURSE;
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} else if (strcasecmp("skip", optarg) == 0)
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dirbehave = DIR_SKIP;
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else if (strcasecmp("read", optarg) == 0)
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dirbehave = DIR_READ;
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else
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errx(2, errstr[2], "--directories");
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break;
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case 'E':
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grepbehave = GREP_EXTENDED;
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break;
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case 'e':
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{
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char *token;
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char *string = optarg;
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while ((token = strsep(&string, "\n")) != NULL)
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add_pattern(token, strlen(token));
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}
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needpattern = 0;
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break;
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case 'F':
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grepbehave = GREP_FIXED;
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break;
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case 'f':
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read_patterns(optarg);
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needpattern = 0;
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break;
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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 'L':
|
|
lflag = false;
|
|
Lflag = true;
|
|
break;
|
|
case 'l':
|
|
Lflag = false;
|
|
lflag = true;
|
|
break;
|
|
case 'm':
|
|
mflag = true;
|
|
errno = 0;
|
|
mlimit = mcount = strtoll(optarg, &ep, 10);
|
|
if (((errno == ERANGE) && (mcount == LLONG_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;
|
|
cflags &= ~REG_NOSUB;
|
|
break;
|
|
case 'p':
|
|
linkbehave = LINK_SKIP;
|
|
break;
|
|
case 'q':
|
|
qflag = true;
|
|
break;
|
|
case 'S':
|
|
linkbehave = LINK_READ;
|
|
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:
|
|
filebehave = FILE_MMAP;
|
|
break;
|
|
case 'V':
|
|
#ifdef WITH_GNU
|
|
printf(errstr[9], getprogname(), VERSION);
|
|
#else
|
|
printf(errstr[8], getprogname(), VERSION);
|
|
#endif
|
|
exit(0);
|
|
case 'v':
|
|
vflag = true;
|
|
break;
|
|
case 'w':
|
|
wflag = true;
|
|
cflags &= ~REG_NOSUB;
|
|
break;
|
|
case 'x':
|
|
xflag = true;
|
|
cflags &= ~REG_NOSUB;
|
|
break;
|
|
case 'z':
|
|
fileeol = '\0';
|
|
break;
|
|
case BIN_OPT:
|
|
if (strcasecmp("binary", optarg) == 0)
|
|
binbehave = BINFILE_BIN;
|
|
else if (strcasecmp("without-match", optarg) == 0)
|
|
binbehave = BINFILE_SKIP;
|
|
else if (strcasecmp("text", optarg) == 0)
|
|
binbehave = BINFILE_TEXT;
|
|
else
|
|
errx(2, errstr[2], "--binary-files");
|
|
break;
|
|
case COLOR_OPT:
|
|
color = NULL;
|
|
if (optarg == NULL || strcasecmp("auto", optarg) == 0 ||
|
|
strcasecmp("tty", optarg) == 0 ||
|
|
strcasecmp("if-tty", optarg) == 0) {
|
|
char *term;
|
|
|
|
term = getenv("TERM");
|
|
if (isatty(STDOUT_FILENO) && term != NULL &&
|
|
strcasecmp(term, "dumb") != 0)
|
|
color = init_color("01;31");
|
|
} else if (strcasecmp("always", optarg) == 0 ||
|
|
strcasecmp("yes", optarg) == 0 ||
|
|
strcasecmp("force", optarg) == 0) {
|
|
color = init_color("01;31");
|
|
} else if (strcasecmp("never", optarg) != 0 &&
|
|
strcasecmp("none", optarg) != 0 &&
|
|
strcasecmp("no", optarg) != 0)
|
|
errx(2, errstr[2], "--color");
|
|
cflags &= ~REG_NOSUB;
|
|
break;
|
|
case LABEL_OPT:
|
|
label = optarg;
|
|
break;
|
|
case LINEBUF_OPT:
|
|
lbflag = true;
|
|
break;
|
|
case NULL_OPT:
|
|
nullflag = true;
|
|
break;
|
|
case R_INCLUDE_OPT:
|
|
finclude = true;
|
|
add_fpattern(optarg, INCL_PAT);
|
|
break;
|
|
case R_EXCLUDE_OPT:
|
|
fexclude = true;
|
|
add_fpattern(optarg, EXCL_PAT);
|
|
break;
|
|
case R_DINCLUDE_OPT:
|
|
dinclude = true;
|
|
add_dpattern(optarg, INCL_PAT);
|
|
break;
|
|
case R_DEXCLUDE_OPT:
|
|
dexclude = true;
|
|
add_dpattern(optarg, EXCL_PAT);
|
|
break;
|
|
case HELP_OPT:
|
|
default:
|
|
usage();
|
|
}
|
|
lastc = c;
|
|
newarg = optind != prevoptind;
|
|
prevoptind = optind;
|
|
}
|
|
aargc -= optind;
|
|
aargv += optind;
|
|
|
|
/* Empty pattern file matches nothing */
|
|
if (!needpattern && (patterns == 0) && !matchall)
|
|
exit(1);
|
|
|
|
/* Fail if we don't have any pattern */
|
|
if (aargc == 0 && needpattern)
|
|
usage();
|
|
|
|
/* Process patterns from command line */
|
|
if (aargc != 0 && needpattern) {
|
|
char *token;
|
|
char *string = *aargv;
|
|
|
|
while ((token = strsep(&string, "\n")) != NULL)
|
|
add_pattern(token, strlen(token));
|
|
--aargc;
|
|
++aargv;
|
|
}
|
|
|
|
switch (grepbehave) {
|
|
case GREP_BASIC:
|
|
break;
|
|
case GREP_FIXED:
|
|
/*
|
|
* regex(3) implementations that support fixed-string searches generally
|
|
* define either REG_NOSPEC or REG_LITERAL. Set the appropriate flag
|
|
* here. If neither are defined, GREP_FIXED later implies that the
|
|
* internal literal matcher should be used. Other cflags that have
|
|
* the same interpretation as REG_NOSPEC and REG_LITERAL should be
|
|
* similarly added here, and grep.h should be amended to take this into
|
|
* consideration when defining WITH_INTERNAL_NOSPEC.
|
|
*/
|
|
#if defined(REG_NOSPEC)
|
|
cflags |= REG_NOSPEC;
|
|
#elif defined(REG_LITERAL)
|
|
cflags |= REG_LITERAL;
|
|
#endif
|
|
break;
|
|
case GREP_EXTENDED:
|
|
cflags |= REG_EXTENDED;
|
|
break;
|
|
default:
|
|
/* NOTREACHED */
|
|
usage();
|
|
}
|
|
|
|
r_pattern = grep_calloc(patterns, sizeof(*r_pattern));
|
|
|
|
#ifdef WITH_INTERNAL_NOSPEC
|
|
if (grepbehave != GREP_FIXED) {
|
|
#else
|
|
{
|
|
#endif
|
|
/* Check if cheating is allowed (always is for fgrep). */
|
|
for (i = 0; i < patterns; ++i) {
|
|
c = regcomp(&r_pattern[i], pattern[i].pat, 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 && dirbehave != DIR_RECURSE)
|
|
exit(!procfile("-"));
|
|
|
|
if (dirbehave == DIR_RECURSE)
|
|
matched = grep_tree(aargv);
|
|
else
|
|
for (matched = false; aargc--; ++aargv) {
|
|
if ((finclude || fexclude) && !file_matching(*aargv))
|
|
continue;
|
|
if (procfile(*aargv))
|
|
matched = true;
|
|
}
|
|
|
|
if (Lflag)
|
|
matched = !matched;
|
|
|
|
/*
|
|
* Calculate the correct return value according to the
|
|
* results and the command line option.
|
|
*/
|
|
exit(matched ? (file_err ? (qflag ? 0 : 2) : 0) : (file_err ? 2 : 1));
|
|
}
|