diff options
Diffstat (limited to 'contrib/file/file.h')
| -rw-r--r-- | contrib/file/file.h | 302 |
1 files changed, 195 insertions, 107 deletions
diff --git a/contrib/file/file.h b/contrib/file/file.h index 874beb9..d5fe2cc 100644 --- a/contrib/file/file.h +++ b/contrib/file/file.h @@ -1,111 +1,188 @@ /* + * 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. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by Ian F. Darwin and others. + * 4. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * 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.h - definitions for file(1) program - * @(#)$Id: file.h,v 1.45 2003/02/08 18:33:53 christos Exp $ - * - * Copyright (c) Ian F. Darwin, 1987. - * Written by Ian F. Darwin. - * - * This software is not subject to any license of the American Telephone - * and Telegraph Company or of the Regents of the University of California. - * - * Permission is granted to anyone to use this software for any purpose on - * any computer system, and to alter it and redistribute it freely, subject - * to the following restrictions: - * - * 1. The author is not responsible for the consequences of use of this - * software, no matter how awful, even if they arise from flaws in it. - * - * 2. The origin of this software must not be misrepresented, either by - * explicit claim or by omission. Since few users ever read sources, - * credits must appear in the documentation. - * - * 3. Altered versions must be plainly marked as such, and must not be - * misrepresented as being the original software. Since few users - * ever read sources, credits must appear in the documentation. - * - * 4. This notice may not be removed or altered. + * @(#)$Id: file.h,v 1.61 2004/05/12 14:53:01 christos Exp $ */ #ifndef __file_h__ #define __file_h__ -#ifndef __linux__ -#define _LARGEFILE_SOURCE -#define _LARGEFILE64_SOURCE -#define _FILE_OFFSET_BITS 64 -#endif - #ifdef HAVE_CONFIG_H #include <config.h> #endif +#include <stdio.h> /* Include that here, to make sure __P gets defined */ #include <errno.h> -#include <stdio.h> #ifdef HAVE_STDINT_H #include <stdint.h> -#elif defined(HAVE_INTTYPES_H) +#endif +#ifdef HAVE_INTTYPES_H #include <inttypes.h> #endif /* Do this here and now, because struct stat gets re-defined on solaris */ #include <sys/stat.h> +#ifndef MAGIC +#define MAGIC "/etc/magic" +#endif + +#ifdef __EMX__ +#define PATHSEP ';' +#else +#define PATHSEP ':' +#endif + +#define private static +#ifndef protected +#define protected +#endif +#define public + #ifndef HOWMANY # define HOWMANY 65536 /* how much of the file to look at */ #endif #define MAXMAGIS 4096 /* max entries in /etc/magic */ -#define MAXDESC 50 /* max leng of text description */ +#define MAXDESC 64 /* max leng of text description */ #define MAXstring 32 /* max leng of "string" types */ #define MAGICNO 0xF11E041C -#define VERSIONNO 1 +#define VERSIONNO 2 +#define FILE_MAGICSIZE (32 * 4) -#define CHECK 1 -#define COMPILE 2 - -#ifndef __GNUC__ -#define __attribute__(a) -#endif +#define FILE_LOAD 0 +#define FILE_CHECK 1 +#define FILE_COMPILE 2 struct magic { + /* Word 1 */ uint16_t cont_level; /* level of ">" */ uint8_t nospflag; /* supress space character */ uint8_t flag; #define INDIR 1 /* if '>(...)' appears, */ #define UNSIGNED 2 /* comparison is unsigned */ #define OFFADD 4 /* if '>&' appears, */ + /* Word 2 */ uint8_t reln; /* relation (0=eq, '>'=gt, etc) */ uint8_t vallen; /* length of string value, if any */ uint8_t type; /* int, short, long or string. */ uint8_t in_type; /* type of indirrection */ -#define BYTE 1 -#define SHORT 2 -#define LONG 4 -#define STRING 5 -#define DATE 6 -#define BESHORT 7 -#define BELONG 8 -#define BEDATE 9 -#define LESHORT 10 -#define LELONG 11 -#define LEDATE 12 -#define PSTRING 13 -#define LDATE 14 -#define BELDATE 15 -#define LELDATE 16 -#define REGEX 17 +#define FILE_BYTE 1 +#define FILE_SHORT 2 +#define FILE_LONG 4 +#define FILE_STRING 5 +#define FILE_DATE 6 +#define FILE_BESHORT 7 +#define FILE_BELONG 8 +#define FILE_BEDATE 9 +#define FILE_LESHORT 10 +#define FILE_LELONG 11 +#define FILE_LEDATE 12 +#define FILE_PSTRING 13 +#define FILE_LDATE 14 +#define FILE_BELDATE 15 +#define FILE_LELDATE 16 +#define FILE_REGEX 17 + +#define FILE_FORMAT_NAME \ +/* 0 */ "invalid 0", \ +/* 1 */ "byte", \ +/* 2 */ "short", \ +/* 3 */ "invalid 3", \ +/* 4 */ "long", \ +/* 5 */ "string", \ +/* 6 */ "date", \ +/* 7 */ "beshort", \ +/* 8 */ "belong", \ +/* 9 */ "bedate" \ +/* 10 */ "leshort", \ +/* 11 */ "lelong", \ +/* 12 */ "ledate", \ +/* 13 */ "pstring", \ +/* 14 */ "ldate", \ +/* 15 */ "beldate", \ +/* 16 */ "leldate", \ +/* 17 */ "regex", + +#define FILE_FMT_NUM "cduxXi" +#define FILE_FMT_STR "s" + +#define FILE_FORMAT_STRING \ +/* 0 */ NULL, \ +/* 1 */ FILE_FMT_NUM, \ +/* 2 */ FILE_FMT_NUM, \ +/* 3 */ NULL, \ +/* 4 */ FILE_FMT_NUM, \ +/* 5 */ FILE_FMT_STR, \ +/* 6 */ FILE_FMT_STR, \ +/* 7 */ FILE_FMT_NUM, \ +/* 8 */ FILE_FMT_NUM, \ +/* 9 */ FILE_FMT_STR, \ +/* 10 */ FILE_FMT_NUM, \ +/* 11 */ FILE_FMT_NUM, \ +/* 12 */ FILE_FMT_STR, \ +/* 13 */ FILE_FMT_STR, \ +/* 14 */ FILE_FMT_STR, \ +/* 15 */ FILE_FMT_STR, \ +/* 16 */ FILE_FMT_STR, \ +/* 17 */ FILE_FMT_STR, + + /* Word 3 */ uint8_t in_op; /* operator for indirection */ uint8_t mask_op; /* operator for mask */ -#define OPAND 1 -#define OPOR 2 -#define OPXOR 3 -#define OPADD 4 -#define OPMINUS 5 -#define OPMULTIPLY 6 -#define OPDIVIDE 7 -#define OPMODULO 8 -#define OPINVERSE 0x80 - int32_t offset; /* offset to magic number */ - int32_t in_offset; /* offset from indirection */ + uint8_t dummy1; + uint8_t dummy2; +#define FILE_OPS "&|^+-*/%" +#define FILE_OPAND 0 +#define FILE_OPOR 1 +#define FILE_OPXOR 2 +#define FILE_OPADD 3 +#define FILE_OPMINUS 4 +#define FILE_OPMULTIPLY 5 +#define FILE_OPDIVIDE 6 +#define FILE_OPMODULO 7 +#define FILE_OPINVERSE 0x80 + /* Word 4 */ + uint32_t offset; /* offset to magic number */ + /* Word 5 */ + uint32_t in_offset; /* offset from indirection */ + /* Word 6 */ + uint32_t mask; /* mask before comparison with value */ + /* Word 7 */ + uint32_t dummy3; + /* Word 8 */ + uint32_t dummp4; + /* Words 9-16 */ union VALUETYPE { uint8_t b; uint16_t h; @@ -115,9 +192,9 @@ struct magic { uint8_t hs[2]; /* 2 bytes of a fixed-endian "short" */ uint8_t hl[4]; /* 4 bytes of a fixed-endian "long" */ } value; /* either number or string */ - uint32_t mask; /* mask before comparison with value */ + /* Words 17..31 */ char desc[MAXDESC]; /* description */ -} __attribute__((__packed__)); +}; #define BIT(A) (1 << (A)) #define STRING_IGNORE_LOWERCASE BIT(0) @@ -131,48 +208,58 @@ struct magic { /* list of magic entries */ struct mlist { struct magic *magic; /* array of magic entries */ - uint32_t nmagic; /* number of entries in array */ + uint32_t nmagic; /* number of entries in array */ + int mapped; /* allocation type: 0 => apprentice_file + * 1 => apprentice_map + malloc + * 2 => apprentice_map + mmap */ struct mlist *next, *prev; }; -extern int apprentice(const char *, int); -extern int ascmagic(unsigned char *, int); -extern void error(const char *, ...); -extern void ckfputs(const char *, FILE *); +struct magic_set { + struct mlist *mlist; + struct cont { + size_t len; + int32_t *off; + } c; + struct out { + /* Accumulation buffer */ + char *buf; + char *ptr; + size_t len; + size_t size; + /* Printable buffer */ + char *pbuf; + size_t psize; + } o; + int error; + int flags; + int haderr; +}; + struct stat; -extern int fsmagic(const char *, struct stat *); -extern char *fmttime(long, int); -extern int is_compress(const unsigned char *, int *); -extern int is_tar(unsigned char *, int); -extern void magwarn(const char *, ...); -extern void mdump(struct magic *); -extern void process(const char *, int); -extern void showstr(FILE *, const char *, int); -extern int softmagic(unsigned char *, int); -extern int tryit(const char *, unsigned char *, int, int); -extern int zmagic(const char *, unsigned char *, int); -extern void ckfprintf(FILE *, const char *, ...); -extern uint32_t signextend(struct magic *, unsigned int32); -extern void tryelf(int, unsigned char *, int); -extern int pipe2file(int, void *, size_t); - - -extern char *progname; /* the program name */ -extern const char *magicfile; /* name of the magic file */ -extern int lineno; /* current line number in magic file */ - -extern struct mlist mlist; /* list of arrays of magic entries */ - -extern int debug; /* enable debugging? */ -extern int zflag; /* process compressed files? */ -extern int lflag; /* follow symbolic links? */ -extern int sflag; /* read/analyze block special files? */ -extern int iflag; /* Output types as mime-types */ - -#ifdef NEED_GETOPT -extern int optind; /* From getopt(3) */ -extern char *optarg; -#endif +protected char *file_fmttime(uint32_t, int); +protected int file_buffer(struct magic_set *, const void *, size_t); +protected int file_fsmagic(struct magic_set *, const char *, struct stat *); +protected int file_pipe2file(struct magic_set *, int, const void *, size_t); +protected int file_printf(struct magic_set *, const char *, ...); +protected int file_reset(struct magic_set *); +protected int file_tryelf(struct magic_set *, int, const unsigned char *, size_t); +protected int file_zmagic(struct magic_set *, const unsigned char *, size_t); +protected int file_ascmagic(struct magic_set *, const unsigned char *, size_t); +protected int file_is_tar(struct magic_set *, const unsigned char *, size_t); +protected int file_softmagic(struct magic_set *, const unsigned char *, size_t); +protected struct mlist *file_apprentice(struct magic_set *, const char *, int); +protected uint32_t file_signextend(struct magic_set *, struct magic *, uint32_t); +protected void file_delmagic(struct magic *, int type, size_t entries); +protected void file_badread(struct magic_set *); +protected void file_badseek(struct magic_set *); +protected void file_oomem(struct magic_set *); +protected void file_error(struct magic_set *, int, const char *, ...); +protected void file_magwarn(const char *, ...); +protected void file_mdump(struct magic *); +protected void file_showstr(FILE *, const char *, size_t); +protected size_t file_mbswidth(const char *); +protected const char *file_getbuffer(struct magic_set *); #ifndef HAVE_STRERROR extern int sys_nerr; @@ -193,5 +280,6 @@ extern char *sys_errlist[]; static const char *rcsid(const char *p) { \ return rcsid(p = id); \ } +#else #endif /* __file_h__ */ |
