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-rw-r--r--contrib/file/file.c560
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diff --git a/contrib/file/file.c b/contrib/file/file.c
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--- a/contrib/file/file.c
+++ /dev/null
@@ -1,560 +0,0 @@
-/*
- * Copyright (c) Ian F. Darwin 1986-1995.
- * Software written by Ian F. Darwin and others;
- * maintained 1995-present by Christos Zoulas and others.
- *
- * 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 immediately at the beginning of the file, without modification,
- * 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.
- */
-/*
- * file - find type of a file or files - main program.
- */
-
-#include "file.h"
-#include "magic.h"
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <string.h>
-#include <sys/types.h>
-#include <sys/param.h> /* for MAXPATHLEN */
-#include <sys/stat.h>
-#ifdef RESTORE_TIME
-# if (__COHERENT__ >= 0x420)
-# include <sys/utime.h>
-# else
-# ifdef USE_UTIMES
-# include <sys/time.h>
-# else
-# include <utime.h>
-# endif
-# endif
-#endif
-#ifdef HAVE_UNISTD_H
-#include <unistd.h> /* for read() */
-#endif
-#ifdef HAVE_LOCALE_H
-#include <locale.h>
-#endif
-#ifdef HAVE_WCHAR_H
-#include <wchar.h>
-#endif
-
-#ifdef HAVE_GETOPT_H
-#include <getopt.h> /* for long options (is this portable?)*/
-#else
-#undef HAVE_GETOPT_LONG
-#endif
-
-#include <netinet/in.h> /* for byte swapping */
-
-#include "patchlevel.h"
-
-#ifndef lint
-FILE_RCSID("@(#)$File: file.c,v 1.117 2007/12/27 16:35:58 christos Exp $")
-#endif /* lint */
-
-
-#ifdef S_IFLNK
-#define SYMLINKFLAG "Lh"
-#else
-#define SYMLINKFLAG ""
-#endif
-
-# define USAGE "Usage: %s [-bcik" SYMLINKFLAG "nNrsvz0] [-e test] [-f namefile] [-F separator] [-m magicfiles] file...\n %s -C -m magicfiles\n"
-
-#ifndef MAXPATHLEN
-#define MAXPATHLEN 512
-#endif
-
-private int /* Global command-line options */
- bflag = 0, /* brief output format */
- nopad = 0, /* Don't pad output */
- nobuffer = 0, /* Do not buffer stdout */
- nulsep = 0; /* Append '\0' to the separator */
-
-private const char *magicfile = 0; /* where the magic is */
-private const char *default_magicfile = MAGIC;
-private const char *separator = ":"; /* Default field separator */
-
-private char *progname; /* used throughout */
-
-private struct magic_set *magic;
-
-private void unwrap(char *);
-private void usage(void);
-#ifdef HAVE_GETOPT_LONG
-private void help(void);
-#endif
-#if 0
-private int byteconv4(int, int, int);
-private short byteconv2(int, int, int);
-#endif
-
-int main(int, char *[]);
-private void process(const char *, int);
-private void load(const char *, int);
-
-
-/*
- * main - parse arguments and handle options
- */
-int
-main(int argc, char *argv[])
-{
- int c;
- size_t i;
- int action = 0, didsomefiles = 0, errflg = 0;
- int flags = 0;
- char *home, *usermagic;
- struct stat sb;
- static const char hmagic[] = "/.magic";
-#define OPTSTRING "bcCde:f:F:hikLm:nNprsvz0"
-#ifdef HAVE_GETOPT_LONG
- int longindex;
- static const struct option long_options[] =
- {
-#define OPT(shortname, longname, opt, doc) \
- {longname, opt, NULL, shortname},
-#define OPT_LONGONLY(longname, opt, doc) \
- {longname, opt, NULL, 0},
-#include "file_opts.h"
-#undef OPT
-#undef OPT_LONGONLY
- {0, 0, NULL, 0}
-};
-#endif
-
- static const struct {
- const char *name;
- int value;
- } nv[] = {
- { "apptype", MAGIC_NO_CHECK_APPTYPE },
- { "ascii", MAGIC_NO_CHECK_ASCII },
- { "compress", MAGIC_NO_CHECK_COMPRESS },
- { "elf", MAGIC_NO_CHECK_ELF },
- { "soft", MAGIC_NO_CHECK_SOFT },
- { "tar", MAGIC_NO_CHECK_TAR },
- { "tokens", MAGIC_NO_CHECK_TOKENS },
- { "troff", MAGIC_NO_CHECK_TROFF },
- };
-
-#ifdef LC_CTYPE
- /* makes islower etc work for other langs */
- (void)setlocale(LC_CTYPE, "");
-#endif
-
-#ifdef __EMX__
- /* sh-like wildcard expansion! Shouldn't hurt at least ... */
- _wildcard(&argc, &argv);
-#endif
-
- if ((progname = strrchr(argv[0], '/')) != NULL)
- progname++;
- else
- progname = argv[0];
-
- magicfile = default_magicfile;
- if ((usermagic = getenv("MAGIC")) != NULL)
- magicfile = usermagic;
- else
- if ((home = getenv("HOME")) != NULL) {
- if ((usermagic = malloc(strlen(home)
- + sizeof(hmagic))) != NULL) {
- (void)strcpy(usermagic, home);
- (void)strcat(usermagic, hmagic);
- if (stat(usermagic, &sb)<0)
- free(usermagic);
- else
- magicfile = usermagic;
- }
- }
-
-#ifdef S_IFLNK
- flags |= getenv("POSIXLY_CORRECT") ? MAGIC_SYMLINK : 0;
-#endif
-#ifndef HAVE_GETOPT_LONG
- while ((c = getopt(argc, argv, OPTSTRING)) != -1)
-#else
- while ((c = getopt_long(argc, argv, OPTSTRING, long_options,
- &longindex)) != -1)
-#endif
- switch (c) {
-#ifdef HAVE_GETOPT_LONG
- case 0 :
- switch (longindex) {
- case 0:
- help();
- break;
- case 10:
- flags |= MAGIC_MIME_TYPE;
- break;
- case 11:
- flags |= MAGIC_MIME_ENCODING;
- break;
- }
- break;
-#endif
- case '0':
- nulsep = 1;
- break;
- case 'b':
- bflag++;
- break;
- case 'c':
- action = FILE_CHECK;
- break;
- case 'C':
- action = FILE_COMPILE;
- break;
- case 'd':
- flags |= MAGIC_DEBUG|MAGIC_CHECK;
- break;
- case 'e':
- for (i = 0; i < sizeof(nv) / sizeof(nv[0]); i++)
- if (strcmp(nv[i].name, optarg) == 0)
- break;
-
- if (i == sizeof(nv) / sizeof(nv[0]))
- errflg++;
- else
- flags |= nv[i].value;
- break;
-
- case 'f':
- if(action)
- usage();
- load(magicfile, flags);
- unwrap(optarg);
- ++didsomefiles;
- break;
- case 'F':
- separator = optarg;
- break;
- case 'i':
- flags |= MAGIC_MIME;
- break;
- case 'k':
- flags |= MAGIC_CONTINUE;
- break;
- case 'm':
- magicfile = optarg;
- break;
- case 'n':
- ++nobuffer;
- break;
- case 'N':
- ++nopad;
- break;
-#if defined(HAVE_UTIME) || defined(HAVE_UTIMES)
- case 'p':
- flags |= MAGIC_PRESERVE_ATIME;
- break;
-#endif
- case 'r':
- flags |= MAGIC_RAW;
- break;
- case 's':
- flags |= MAGIC_DEVICES;
- break;
- case 'v':
- (void)fprintf(stderr, "%s-%d.%.2d\n", progname,
- FILE_VERSION_MAJOR, patchlevel);
- (void)fprintf(stderr, "magic file from %s\n",
- magicfile);
- return 1;
- case 'z':
- flags |= MAGIC_COMPRESS;
- break;
-#ifdef S_IFLNK
- case 'L':
- flags |= MAGIC_SYMLINK;
- break;
- case 'h':
- flags &= ~MAGIC_SYMLINK;
- break;
-#endif
- case '?':
- default:
- errflg++;
- break;
- }
-
- if (errflg) {
- usage();
- }
-
- switch(action) {
- case FILE_CHECK:
- case FILE_COMPILE:
- magic = magic_open(flags|MAGIC_CHECK);
- if (magic == NULL) {
- (void)fprintf(stderr, "%s: %s\n", progname,
- strerror(errno));
- return 1;
- }
- c = action == FILE_CHECK ? magic_check(magic, magicfile) :
- magic_compile(magic, magicfile);
- if (c == -1) {
- (void)fprintf(stderr, "%s: %s\n", progname,
- magic_error(magic));
- return -1;
- }
- return 0;
- default:
- load(magicfile, flags);
- break;
- }
-
- if (optind == argc) {
- if (!didsomefiles) {
- usage();
- }
- }
- else {
- size_t j, wid, nw;
- for (wid = 0, j = (size_t)optind; j < (size_t)argc; j++) {
- nw = file_mbswidth(argv[j]);
- if (nw > wid)
- wid = nw;
- }
- /*
- * If bflag is only set twice, set it depending on
- * number of files [this is undocumented, and subject to change]
- */
- if (bflag == 2) {
- bflag = optind >= argc - 1;
- }
- for (; optind < argc; optind++)
- process(argv[optind], wid);
- }
-
- magic_close(magic);
- return 0;
-}
-
-
-private void
-/*ARGSUSED*/
-load(const char *m, int flags)
-{
- if (magic || m == NULL)
- return;
- magic = magic_open(flags);
- if (magic == NULL) {
- (void)fprintf(stderr, "%s: %s\n", progname, strerror(errno));
- exit(1);
- }
- if (magic_load(magic, magicfile) == -1) {
- (void)fprintf(stderr, "%s: %s\n",
- progname, magic_error(magic));
- exit(1);
- }
-}
-
-/*
- * unwrap -- read a file of filenames, do each one.
- */
-private void
-unwrap(char *fn)
-{
- char buf[MAXPATHLEN];
- FILE *f;
- int wid = 0, cwid;
-
- if (strcmp("-", fn) == 0) {
- f = stdin;
- wid = 1;
- } else {
- if ((f = fopen(fn, "r")) == NULL) {
- (void)fprintf(stderr, "%s: Cannot open `%s' (%s).\n",
- progname, fn, strerror(errno));
- exit(1);
- }
-
- while (fgets(buf, MAXPATHLEN, f) != NULL) {
- buf[strcspn(buf, "\n")] = '\0';
- cwid = file_mbswidth(buf);
- if (cwid > wid)
- wid = cwid;
- }
-
- rewind(f);
- }
-
- while (fgets(buf, sizeof(buf), f) != NULL) {
- buf[strcspn(buf, "\n")] = '\0';
- process(buf, wid);
- if(nobuffer)
- (void)fflush(stdout);
- }
-
- (void)fclose(f);
-}
-
-/*
- * Called for each input file on the command line (or in a list of files)
- */
-private void
-process(const char *inname, int wid)
-{
- const char *type;
- int std_in = strcmp(inname, "-") == 0;
-
- if (wid > 0 && !bflag) {
- (void)printf("%s", std_in ? "/dev/stdin" : inname);
- if (nulsep)
- (void)putc('\0', stdout);
- else
- (void)printf("%s", separator);
- (void)printf("%*s ",
- (int) (nopad ? 0 : (wid - file_mbswidth(inname))), "");
- }
-
- type = magic_file(magic, std_in ? NULL : inname);
- if (type == NULL)
- (void)printf("ERROR: %s\n", magic_error(magic));
- else
- (void)printf("%s\n", type);
-}
-
-
-#if 0
-/*
- * byteconv4
- * Input:
- * from 4 byte quantity to convert
- * same whether to perform byte swapping
- * big_endian whether we are a big endian host
- */
-private int
-byteconv4(int from, int same, int big_endian)
-{
- if (same)
- return from;
- else if (big_endian) { /* lsb -> msb conversion on msb */
- union {
- int i;
- char c[4];
- } retval, tmpval;
-
- tmpval.i = from;
- retval.c[0] = tmpval.c[3];
- retval.c[1] = tmpval.c[2];
- retval.c[2] = tmpval.c[1];
- retval.c[3] = tmpval.c[0];
-
- return retval.i;
- }
- else
- return ntohl(from); /* msb -> lsb conversion on lsb */
-}
-
-/*
- * byteconv2
- * Same as byteconv4, but for shorts
- */
-private short
-byteconv2(int from, int same, int big_endian)
-{
- if (same)
- return from;
- else if (big_endian) { /* lsb -> msb conversion on msb */
- union {
- short s;
- char c[2];
- } retval, tmpval;
-
- tmpval.s = (short) from;
- retval.c[0] = tmpval.c[1];
- retval.c[1] = tmpval.c[0];
-
- return retval.s;
- }
- else
- return ntohs(from); /* msb -> lsb conversion on lsb */
-}
-#endif
-
-size_t
-file_mbswidth(const char *s)
-{
-#if defined(HAVE_WCHAR_H) && defined(HAVE_MBRTOWC) && defined(HAVE_WCWIDTH)
- size_t bytesconsumed, old_n, n, width = 0;
- mbstate_t state;
- wchar_t nextchar;
- (void)memset(&state, 0, sizeof(mbstate_t));
- old_n = n = strlen(s);
-
- while (n > 0) {
- bytesconsumed = mbrtowc(&nextchar, s, n, &state);
- if (bytesconsumed == (size_t)(-1) ||
- bytesconsumed == (size_t)(-2)) {
- /* Something went wrong, return something reasonable */
- return old_n;
- }
- if (s[0] == '\n') {
- /*
- * do what strlen() would do, so that caller
- * is always right
- */
- width++;
- } else
- width += wcwidth(nextchar);
-
- s += bytesconsumed, n -= bytesconsumed;
- }
- return width;
-#else
- return strlen(s);
-#endif
-}
-
-private void
-usage(void)
-{
- (void)fprintf(stderr, USAGE, progname, progname);
-#ifdef HAVE_GETOPT_LONG
- (void)fputs("Try `file --help' for more information.\n", stderr);
-#endif
- exit(1);
-}
-
-#ifdef HAVE_GETOPT_LONG
-private void
-help(void)
-{
- (void)fputs(
-"Usage: file [OPTION...] [FILE...]\n"
-"Determine type of FILEs.\n"
-"\n", stderr);
-#define OPT(shortname, longname, opt, doc) \
- fprintf(stderr, " -%c, --" longname doc, shortname);
-#define OPT_LONGONLY(longname, opt, doc) \
- fprintf(stderr, " --" longname doc);
-#include "file_opts.h"
-#undef OPT
-#undef OPT_LONGONLY
- exit(0);
-}
-#endif
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