=================================================================== RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/file/file.h,v retrieving revision 1.18 retrieving revision 1.19 diff -u -r1.18 -r1.19 --- src/usr.bin/file/file.h 2007/11/26 09:28:34 1.18 +++ src/usr.bin/file/file.h 2008/05/08 01:40:56 1.19 @@ -1,4 +1,4 @@ -/* $OpenBSD: file.h,v 1.18 2007/11/26 09:28:34 martynas Exp $ */ +/* $OpenBSD: file.h,v 1.19 2008/05/08 01:40:56 chl Exp $ */ /* * Copyright (c) Ian F. Darwin 1986-1995. * Software written by Ian F. Darwin and others; @@ -28,7 +28,7 @@ */ /* * file.h - definitions for file(1) program - * @(#)$Id: file.h,v 1.18 2007/11/26 09:28:34 martynas Exp $ + * @(#)$Id: file.h,v 1.19 2008/05/08 01:40:56 chl Exp $ */ #ifndef __file_h__ @@ -40,15 +40,20 @@ #include /* Include that here, to make sure __P gets defined */ #include +#include /* For open and flags */ #ifdef HAVE_STDINT_H #include #endif #ifdef HAVE_INTTYPES_H #include #endif +#include +#include /* Do this here and now, because struct stat gets re-defined on solaris */ #include +#define ENABLE_CONDITIONALS + #ifndef MAGIC #define MAGIC "/etc/magic" #endif @@ -65,15 +70,29 @@ #endif #define public +#ifndef __GNUC_PREREQ__ +#ifdef __GNUC__ +#define __GNUC_PREREQ__(x, y) \ + ((__GNUC__ == (x) && __GNUC_MINOR__ >= (y)) || \ + (__GNUC__ > (x))) +#else +#define __GNUC_PREREQ__(x, y) 0 +#endif +#endif + +#ifndef MIN +#define MIN(a,b) (((a) < (b)) ? (a) : (b)) +#endif + #ifndef HOWMANY -# define HOWMANY 65536 /* how much of the file to look at */ +# define HOWMANY (256 * 1024) /* how much of the file to look at */ #endif -#define MAXMAGIS 4096 /* max entries in /etc/magic */ +#define MAXMAGIS 8192 /* max entries in /etc/magic */ #define MAXDESC 64 /* max leng of text description */ #define MAXstring 32 /* max leng of "string" types */ #define MAGICNO 0xF11E041C -#define VERSIONNO 2 +#define VERSIONNO 4 #define FILE_MAGICSIZE (32 * 4) #define FILE_LOAD 0 @@ -85,16 +104,20 @@ uint16_t cont_level; /* level of ">" */ uint8_t nospflag; /* suppress space character */ uint8_t flag; -#define INDIR 1 /* if '>(...)' appears, */ -#define UNSIGNED 2 /* comparison is unsigned */ -#define OFFADD 4 /* if '>&' appears, */ +#define INDIR 1 /* if '(...)' appears */ +#define OFFADD 2 /* if '>&' or '>...(&' appears */ +#define INDIROFFADD 4 /* if '>&(' appears */ +#define UNSIGNED 8 /* comparison is unsigned */ + /* 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 FILE_INVALID 0 #define FILE_BYTE 1 #define FILE_SHORT 2 +#define FILE_DEFAULT 3 #define FILE_LONG 4 #define FILE_STRING 5 #define FILE_DATE 6 @@ -109,11 +132,48 @@ #define FILE_BELDATE 15 #define FILE_LELDATE 16 #define FILE_REGEX 17 +#define FILE_BESTRING16 18 +#define FILE_LESTRING16 19 +#define FILE_SEARCH 20 +#define FILE_MEDATE 21 +#define FILE_MELDATE 22 +#define FILE_MELONG 23 +#define FILE_QUAD 24 +#define FILE_LEQUAD 25 +#define FILE_BEQUAD 26 +#define FILE_QDATE 27 +#define FILE_LEQDATE 28 +#define FILE_BEQDATE 29 +#define FILE_QLDATE 30 +#define FILE_LEQLDATE 31 +#define FILE_BEQLDATE 32 +#define FILE_NAMES_SIZE 33/* size of array to contain all names */ + +#define IS_STRING(t) \ + ((t) == FILE_STRING || \ + (t) == FILE_PSTRING || \ + (t) == FILE_BESTRING16 || \ + (t) == FILE_LESTRING16 || \ + (t) == FILE_REGEX || \ + (t) == FILE_SEARCH || \ + (t) == FILE_DEFAULT) + +#define FILE_FMT_NONE 0 +#define FILE_FMT_NUM 1 /* "cduxXi" */ +#define FILE_FMT_STR 2 /* "s" */ +#define FILE_FMT_QUAD 3 /* "ll" */ + /* Word 3 */ uint8_t in_op; /* operator for indirection */ uint8_t mask_op; /* operator for mask */ +#ifdef ENABLE_CONDITIONALS + uint8_t cond; /* conditional type */ uint8_t dummy1; +#else + uint8_t dummy1; uint8_t dummy2; +#endif + #define FILE_OPS "&|^+-*/%" #define FILE_OPAND 0 #define FILE_OPOR 1 @@ -123,38 +183,65 @@ #define FILE_OPMULTIPLY 5 #define FILE_OPDIVIDE 6 #define FILE_OPMODULO 7 -#define FILE_OPINVERSE 0x80 +#define FILE_OPS_MASK 0x07 /* mask for above ops */ +#define FILE_UNUSED_1 0x08 +#define FILE_UNUSED_2 0x10 +#define FILE_UNUSED_3 0x20 +#define FILE_OPINVERSE 0x40 +#define FILE_OPINDIRECT 0x80 + +#ifdef ENABLE_CONDITIONALS +#define COND_NONE 0 +#define COND_IF 1 +#define COND_ELIF 2 +#define COND_ELSE 3 +#endif /* ENABLE_CONDITIONALS */ + /* Word 4 */ uint32_t offset; /* offset to magic number */ /* Word 5 */ - uint32_t in_offset; /* offset from indirection */ + int32_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; + uint32_t lineno; /* line number in magic file */ + /* Word 7,8 */ + union { + uint64_t _mask; /* for use with numeric and date types */ + struct { + uint32_t _count; /* repeat/line count */ + uint32_t _flags; /* modifier flags */ + } _s; /* for use with string types */ + } _u; +#define num_mask _u._mask +#define str_count _u._s._count +#define str_flags _u._s._flags + /* Words 9-16 */ union VALUETYPE { uint8_t b; uint16_t h; uint32_t l; - char s[MAXstring]; - char *buf; + uint64_t q; uint8_t hs[2]; /* 2 bytes of a fixed-endian "short" */ uint8_t hl[4]; /* 4 bytes of a fixed-endian "long" */ + uint8_t hq[8]; /* 8 bytes of a fixed-endian "quad" */ + char s[MAXstring]; /* the search string or regex pattern */ } value; /* either number or string */ /* Words 17..31 */ char desc[MAXDESC]; /* description */ }; #define BIT(A) (1 << (A)) -#define STRING_IGNORE_LOWERCASE BIT(0) -#define STRING_COMPACT_BLANK BIT(1) -#define STRING_COMPACT_OPTIONAL_BLANK BIT(2) -#define CHAR_IGNORE_LOWERCASE 'c' +#define STRING_COMPACT_BLANK BIT(0) +#define STRING_COMPACT_OPTIONAL_BLANK BIT(1) +#define STRING_IGNORE_LOWERCASE BIT(2) +#define STRING_IGNORE_UPPERCASE BIT(3) +#define REGEX_OFFSET_START BIT(4) #define CHAR_COMPACT_BLANK 'B' #define CHAR_COMPACT_OPTIONAL_BLANK 'b' +#define CHAR_IGNORE_LOWERCASE 'c' +#define CHAR_IGNORE_UPPERCASE 'C' +#define CHAR_REGEX_OFFSET_START 's' +#define STRING_IGNORE_CASE (STRING_IGNORE_LOWERCASE|STRING_IGNORE_UPPERCASE) /* list of magic entries */ @@ -168,59 +255,109 @@ }; 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 left; - size_t size; - /* Printable buffer */ - char *pbuf; - size_t psize; - } o; - int error; - int flags; - int haderr; + struct mlist *mlist; + struct cont { + size_t len; + struct level_info { + int32_t off; + int got_match; +#ifdef ENABLE_CONDITIONALS + int last_match; + int last_cond; /* used for error checking by parse() */ +#endif + } *li; + } c; + struct out { + /* Accumulation buffer */ + char *buf; + char *ptr; + size_t left; + size_t size; + /* Printable buffer */ + char *pbuf; + size_t psize; + } o; + uint32_t offset; + int error; + int flags; + int haderr; + const char *file; + size_t line; /* current magic line number */ + + /* data for searches */ + struct { + const char *s; /* start of search in original source */ + size_t s_len; /* length of search region */ + size_t offset; /* starting offset in source: XXX - should this be off_t? */ + size_t rm_len; /* match length */ + } search; + + union VALUETYPE ms_value; /* either number or string */ }; struct stat; -protected char *file_fmttime(uint32_t, int); -protected int file_buffer(struct magic_set *, const void *, size_t); +protected const char *file_fmttime(uint32_t, int); +protected int file_buffer(struct magic_set *, int, const char *, 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_tryelf(struct magic_set *, int, const unsigned char *, + size_t); +protected int file_zmagic(struct magic_set *, int, const char *, + 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 uint64_t file_signextend(struct magic_set *, struct magic *, + uint64_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_oomem(struct magic_set *, size_t); protected void file_error(struct magic_set *, int, const char *, ...); -protected void file_magwarn(const char *, ...); +protected void file_magerror(struct magic_set *, const char *, ...); +protected void file_magwarn(struct magic_set *, 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 *); +protected ssize_t sread(int, void *, size_t, int); +protected int file_check_mem(struct magic_set *, unsigned int); +#ifndef COMPILE_ONLY +extern const char *file_names[]; +extern const size_t file_nnames; +#endif + +#ifndef HAVE_STRERROR +extern int sys_nerr; +extern char *sys_errlist[]; +#define strerror(e) \ + (((e) >= 0 && (e) < sys_nerr) ? sys_errlist[(e)] : "Unknown error") +#endif + +#ifndef HAVE_STRTOUL +#define strtoul(a, b, c) strtol(a, b, c) +#endif + +#ifndef HAVE_SNPRINTF +int snprintf(char *, size_t, const char *, ...); +#endif + #if defined(HAVE_MMAP) && defined(HAVE_SYS_MMAN_H) && !defined(QUICK) #define QUICK #endif +#ifndef O_BINARY +#define O_BINARY 0 +#endif + #define FILE_RCSID(id) \ static const char *rcsid(const char *p) { \ return rcsid(p = id); \ } -#else #endif /* __file_h__ */