Ported "grep" from NetBSD to toolbox.
Bug: 6798417
Change-Id: I581c496a726a4814edaaa3672849c090bac8552c
diff --git a/toolbox/grep/grep.c b/toolbox/grep/grep.c
new file mode 100644
index 0000000..b5bb2ef
--- /dev/null
+++ b/toolbox/grep/grep.c
@@ -0,0 +1,710 @@
+/* $NetBSD: grep.c,v 1.11 2012/05/06 22:27:00 joerg Exp $ */
+/* $FreeBSD: head/usr.bin/grep/grep.c 211519 2010-08-19 22:55:17Z delphij $ */
+/* $OpenBSD: grep.c,v 1.42 2010/07/02 22:18:03 tedu Exp $ */
+
+/*-
+ * Copyright (c) 1999 James Howard and Dag-Erling Coïdan Smørgrav
+ * 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.
+ */
+
+#if HAVE_NBTOOL_CONFIG_H
+#include "nbtool_config.h"
+#endif
+
+#include <sys/cdefs.h>
+__RCSID("$NetBSD: grep.c,v 1.11 2012/05/06 22:27:00 joerg Exp $");
+
+#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 %s option",
+/* 4*/ "usage: %s [-abcDEFGHhIiJLlmnOoPqRSsUVvwxZz] [-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[pattern] [file ...]\n",
+/* 8*/ "Binary file %s matches\n",
+/* 9*/ "%s (BSD grep) %s\n",
+};
+
+/* Flags passed to regcomp() and regexec() */
+int cflags = 0;
+int eflags = REG_STARTEND;
+
+/* Searching patterns */
+unsigned int patterns, pattern_sz;
+char **pattern;
+regex_t *r_pattern;
+fastgrep_t *fg_pattern;
+
+/* Filename exclusion/inclusion patterns */
+unsigned int fpatterns, fpattern_sz;
+unsigned int dpatterns, dpattern_sz;
+struct epat *dpattern, *fpattern;
+
+/* 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 nulldataflag; /* --null-data */
+unsigned char line_sep = '\n'; /* 0 for --null-data */
+char *label; /* --label */
+const 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_READ; /* -D: handling of devices */
+int dirbehave = DIR_READ; /* -dRr: handling of directories */
+int linkbehave = LINK_READ; /* -OpS: handling of symlinks */
+
+bool dexclude, dinclude; /* --exclude-dir and --include-dir */
+bool fexclude, finclude; /* --exclude and --include */
+
+enum {
+ BIN_OPT = CHAR_MAX + 1,
+ COLOR_OPT,
+ DECOMPRESS_OPT,
+ HELP_OPT,
+ MMAP_OPT,
+ LINEBUF_OPT,
+ LABEL_OPT,
+ R_EXCLUDE_OPT,
+ R_INCLUDE_OPT,
+ R_DEXCLUDE_OPT,
+ R_DINCLUDE_OPT
+};
+
+static inline const char *init_color(const char *);
+
+/* Housekeeping */
+int tail; /* lines left to print */
+bool notfound; /* file not found */
+
+extern char *__progname;
+
+/*
+ * Prints usage information and returns 2.
+ */
+__dead 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:nopqrsuvwxyz";
+
+struct option long_options[] =
+{
+ {"binary-files", required_argument, NULL, BIN_OPT},
+ {"decompress", no_argument, NULL, DECOMPRESS_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},
+ {"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'},
+ {"null", no_argument, NULL, 'Z'},
+ {"null-data", 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)
+{
+
+ /* TODO: Check for empty patterns and shortcut */
+
+ /* 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 a file include/exclude pattern to the internal array.
+ */
+static void
+add_fpattern(const char *pat, int mode)
+{
+
+ /* Increase size if necessary */
+ if (fpatterns == fpattern_sz) {
+ fpattern_sz *= 2;
+ fpattern = grep_realloc(fpattern, ++fpattern_sz *
+ sizeof(struct epat));
+ }
+ fpattern[fpatterns].pat = grep_strdup(pat);
+ fpattern[fpatterns].mode = mode;
+ ++fpatterns;
+}
+
+/*
+ * Adds a directory include/exclude pattern to the internal array.
+ */
+static void
+add_dpattern(const char *pat, int mode)
+{
+
+ /* Increase size if necessary */
+ if (dpatterns == dpattern_sz) {
+ dpattern_sz *= 2;
+ dpattern = grep_realloc(dpattern, ++dpattern_sz *
+ sizeof(struct epat));
+ }
+ dpattern[dpatterns].pat = grep_strdup(pat);
+ dpattern[dpatterns].mode = mode;
+ ++dpatterns;
+}
+
+/*
+ * 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;
+ ssize_t rlen;
+
+ if ((f = fopen(fn, "r")) == NULL)
+ err(2, "%s", fn);
+ line = NULL;
+ len = 0;
+#ifndef ANDROID
+ while ((rlen = getline(&line, &len, f)) != -1)
+ add_pattern(line, *line == '\n' ? 0 : (size_t)rlen);
+#endif
+ free(line);
+ if (ferror(f))
+ err(2, "%s", fn);
+ fclose(f);
+}
+
+static inline const char *
+init_color(const char *d)
+{
+ char *c;
+
+ c = getenv("GREP_COLOR");
+ return (c != NULL ? c : d);
+}
+
+int
+grep_main(int argc, char *argv[])
+{
+ char **aargv, **eargv, *eopts;
+ char *ep;
+ unsigned long long l;
+ unsigned int aargc, eargc, i, j;
+ 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");
+
+ /* support for extra arguments in GREP_OPTIONS */
+ eargc = 0;
+ if (eopts != NULL) {
+ char *str;
+
+ /* make an estimation of how many extra arguments we have */
+ for (j = 0; j < strlen(eopts); j++)
+ if (eopts[j] == ' ')
+ eargc++;
+
+ eargv = (char **)grep_malloc(sizeof(char *) * (eargc + 1));
+
+ eargc = 0;
+ /* parse extra arguments */
+ while ((str = strsep(&eopts, " ")) != NULL)
+ eargv[eargc++] = grep_strdup(str);
+
+ aargv = (char **)grep_calloc(eargc + argc + 1,
+ sizeof(char *));
+
+ aargv[0] = argv[0];
+ for (i = 0; i < eargc; i++)
+ aargv[i + 1] = eargv[i];
+ for (j = 1; j < (unsigned int)argc; j++, i++)
+ aargv[i + 1] = argv[j];
+
+ aargc = eargc + argc;
+ } 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 (strcasecmp(optarg, "skip") == 0)
+ devbehave = DEV_SKIP;
+ else if (strcasecmp(optarg, "read") == 0)
+ devbehave = DEV_READ;
+ else
+ errx(2, getstr(3), "--devices");
+ break;
+ case 'd':
+ if (strcasecmp("recurse", optarg) == 0) {
+ Hflag = true;
+ dirbehave = DIR_RECURSE;
+ } else if (strcasecmp("skip", optarg) == 0)
+ dirbehave = DIR_SKIP;
+ else if (strcasecmp("read", optarg) == 0)
+ dirbehave = DIR_READ;
+ else
+ errx(2, getstr(3), "--directories");
+ 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 = true;
+ break;
+ case 'l':
+ Lflag = false;
+ lflag = 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_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:
+ /* noop, compatibility */
+ break;
+ case 'V':
+ printf(getstr(9), __progname, VERSION);
+ exit(0);
+ case 'v':
+ vflag = true;
+ break;
+ case 'w':
+ wflag = true;
+ break;
+ case 'x':
+ xflag = true;
+ break;
+ case 'Z':
+ nullflag = true;
+ break;
+ case 'z':
+ nulldataflag = true;
+ line_sep = '\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, getstr(3), "--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, getstr(3), "--color");
+ break;
+ case DECOMPRESS_OPT:
+ filebehave = FILE_GZIP;
+ break;
+ case LABEL_OPT:
+ label = optarg;
+ break;
+ case LINEBUF_OPT:
+ lbflag = 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;
+
+ /* 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) {
+ if ((finclude || fexclude) && !file_matching(*aargv))
+ continue;
+ 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));
+}