diff options
-rw-r--r-- | usr.bin/Makefile | 8 | ||||
-rw-r--r-- | usr.bin/file/Makefile | 6 | ||||
-rw-r--r-- | usr.bin/file/apprentice.c | 26 | ||||
-rw-r--r-- | usr.bin/file/ascmagic.c | 18 | ||||
-rw-r--r-- | usr.bin/file/compress.c | 3 | ||||
-rw-r--r-- | usr.bin/file/file.1 | 89 | ||||
-rw-r--r-- | usr.bin/file/file.c | 185 | ||||
-rw-r--r-- | usr.bin/file/file.h | 36 | ||||
-rw-r--r-- | usr.bin/file/fsmagic.c | 18 | ||||
-rw-r--r-- | usr.bin/file/internat.c | 75 | ||||
-rw-r--r-- | usr.bin/file/is_tar.c | 13 | ||||
-rw-r--r-- | usr.bin/file/magdir/Localstuff | 3 | ||||
-rw-r--r-- | usr.bin/file/magic.5 | 26 | ||||
-rw-r--r-- | usr.bin/file/names.h | 28 | ||||
-rw-r--r-- | usr.bin/file/patchlevel.h | 36 | ||||
-rw-r--r-- | usr.bin/file/print.c | 11 | ||||
-rw-r--r-- | usr.bin/file/readelf.c | 315 | ||||
-rw-r--r-- | usr.bin/file/readelf.h | 168 | ||||
-rw-r--r-- | usr.bin/file/softmagic.c | 119 | ||||
-rw-r--r-- | usr.bin/file/tar.h | 3 | ||||
-rw-r--r-- | usr.bin/fmt/fmt.1 | 8 | ||||
-rw-r--r-- | usr.bin/rdist/os-openbsd.h | 4 |
22 files changed, 968 insertions, 230 deletions
diff --git a/usr.bin/Makefile b/usr.bin/Makefile index ef002f7df87..b79d4e35edf 100644 --- a/usr.bin/Makefile +++ b/usr.bin/Makefile @@ -1,4 +1,4 @@ -# $OpenBSD: Makefile,v 1.37 1997/01/21 04:34:32 millert Exp $ +# $OpenBSD: Makefile,v 1.38 1997/02/09 23:58:12 millert Exp $ # $NetBSD: Makefile,v 1.62 1996/03/10 05:45:43 thorpej Exp $ # from: @(#)Makefile 5.8.1.1 (Berkeley) 5/8/91 @@ -11,9 +11,9 @@ SUBDIR= apply apropos arch asa at aucat awk banner basename bdes biff cal \ fold from fsplit fstat ftp gencat getconf getopt head hexdump id \ indent \ info_mkdb ipcrm ipcs join jot kdump ktrace lam last lastcomm leave \ - less lex lndir locate lock logger login logname look lorder m4 machine \ - mail make man mesg mk_cmds mkdep mkfifo mkstr mktemp modstat msgs nc \ - netstat newsyslog \ + less lex lndir locate lock logger login.millert logname look lorder m4 \ + machine mail make man mesg mk_cmds mkdep mkfifo mkstr mktemp modstat \ + msgs nc netstat newsyslog \ nfsstat nice nohup oldrdist pagesize passwd paste patch pr printenv \ printf quota rdist rdistd renice rev rlogin rpcgen rpcinfo rs \ rsh rup ruptime rusers rwall rwho \ diff --git a/usr.bin/file/Makefile b/usr.bin/file/Makefile index 436ed0e148a..705f59792cc 100644 --- a/usr.bin/file/Makefile +++ b/usr.bin/file/Makefile @@ -1,4 +1,4 @@ -# $OpenBSD: Makefile,v 1.5 1996/12/08 14:32:25 downsj Exp $ +# $OpenBSD: Makefile,v 1.6 1997/02/09 23:58:15 millert Exp $ MAGIC= /etc/magic MAGICOWN= root @@ -7,8 +7,8 @@ MAGICMODE= 444 PROG= file SRCS= file.c apprentice.c fsmagic.c softmagic.c ascmagic.c is_tar.c \ - print.c compress.c -CFLAGS+= -DMAGIC='"$(MAGIC)"' + print.c compress.c readelf.c internat.c +CFLAGS+= -DMAGIC='"$(MAGIC)"' -DUSE_UTIMES MAN= file.1 magic.5 CLEANFILES+= magic diff --git a/usr.bin/file/apprentice.c b/usr.bin/file/apprentice.c index c6311b8885c..8a5ccbec20f 100644 --- a/usr.bin/file/apprentice.c +++ b/usr.bin/file/apprentice.c @@ -1,4 +1,5 @@ -/* $OpenBSD: apprentice.c,v 1.3 1996/06/26 05:32:54 deraadt Exp $ */ +/* $OpenBSD: apprentice.c,v 1.4 1997/02/09 23:58:16 millert Exp $ */ + /* * apprentice - make one pass through /etc/magic, learning its secrets. * @@ -34,7 +35,7 @@ #include "file.h" #ifndef lint -static char *moduleid = "$OpenBSD: apprentice.c,v 1.3 1996/06/26 05:32:54 deraadt Exp $"; +static char *moduleid = "$OpenBSD: apprentice.c,v 1.4 1997/02/09 23:58:16 millert Exp $"; #endif /* lint */ #define EATAB {while (isascii((unsigned char) *l) && \ @@ -133,10 +134,10 @@ int check; /* non-zero? checking-only run. */ /* * extend the sign bit if the comparison is to be signed */ -unsigned long +uint32 signextend(m, v) struct magic *m; -unsigned long v; +uint32 v; { if (!(m->flag & UNSIGNED)) switch(m->type) { @@ -159,7 +160,7 @@ unsigned long v; case LONG: case BELONG: case LELONG: - v = (long) v; + v = (int32) v; break; case STRING: break; @@ -210,6 +211,10 @@ int *ndx, check; ++l; /* step over */ m->flag |= INDIR; } + if (m->cont_level != 0 && *l == '&') { + ++l; /* step over */ + m->flag |= ADD; + } /* get offset, then skip over it */ m->offset = (int) strtoul(l,&t,0); @@ -491,21 +496,16 @@ int plen, *slen; *p++ = (char)val; break; - /* \x and up to 3 hex digits */ + /* \x and up to 2 hex digits */ case 'x': val = 'x'; /* Default if no digits */ c = hextoint(*s++); /* Get next char */ if (c >= 0) { val = c; c = hextoint(*s++); - if (c >= 0) { + if (c >= 0) val = (val << 4) + c; - c = hextoint(*s++); - if (c >= 0) { - val = (val << 4) + c; - } else - --s; - } else + else --s; } else --s; diff --git a/usr.bin/file/ascmagic.c b/usr.bin/file/ascmagic.c index 455f3043b9b..9caa50eff7b 100644 --- a/usr.bin/file/ascmagic.c +++ b/usr.bin/file/ascmagic.c @@ -1,4 +1,5 @@ -/* $OpenBSD: ascmagic.c,v 1.2 1996/06/26 05:32:54 deraadt Exp $ */ +/* $OpenBSD: ascmagic.c,v 1.3 1997/02/09 23:58:18 millert Exp $ */ + /* * ASCII magic -- file types that we know based on keywords * that can appear anywhere in the file. @@ -36,7 +37,7 @@ #include "names.h" #ifndef lint -static char *moduleid = "$OpenBSD: ascmagic.c,v 1.2 1996/06/26 05:32:54 deraadt Exp $"; +static char *moduleid = "$OpenBSD: ascmagic.c,v 1.3 1997/02/09 23:58:18 millert Exp $"; #endif /* lint */ /* an optimisation over plain strcmp() */ @@ -88,6 +89,13 @@ int nbytes; /* size actually read */ return 1; } + + /* Make sure we are dealing with ascii text before looking for tokens */ + for (i = 0; i < nbytes; i++) { + if (!isascii(buf[i])) + return 0; /* not all ASCII */ + } + /* look for tokens from names.h - this is expensive! */ /* make a copy of the buffer here because strtok() will destroy it */ s = (unsigned char*) memcpy(nbuf, buf, nbytes); @@ -106,12 +114,6 @@ int nbytes; /* size actually read */ } } - - for (i = 0; i < nbytes; i++) { - if (!isascii(buf[i])) - return 0; /* not all ASCII */ - } - /* all else fails, but it is ASCII... */ ckfputs("ASCII text", stdout); if (has_escapes) { diff --git a/usr.bin/file/compress.c b/usr.bin/file/compress.c index c6fe63cf78b..bde1ff4a9d7 100644 --- a/usr.bin/file/compress.c +++ b/usr.bin/file/compress.c @@ -1,4 +1,5 @@ -/* $OpenBSD: compress.c,v 1.2 1996/06/26 05:32:55 deraadt Exp $ */ +/* $OpenBSD: compress.c,v 1.3 1997/02/09 23:58:19 millert Exp $ */ + /* * compress routines: * zmagic() - returns 0 if not recognized, uncompresses and prints diff --git a/usr.bin/file/file.1 b/usr.bin/file/file.1 index 706f08e82bc..35e9b778bf0 100644 --- a/usr.bin/file/file.1 +++ b/usr.bin/file/file.1 @@ -1,5 +1,5 @@ -.\" $OpenBSD: file.1,v 1.3 1996/06/26 05:32:56 deraadt Exp $ -.TH FILE 1 "Copyright but distributable" +.\" $OpenBSD: file.1,v 1.4 1997/02/09 23:58:20 millert Exp $ +.TH FILE 1 "Copyrighted but distributable" .SH NAME file \- determine file type @@ -16,7 +16,10 @@ namefile ] magicfiles ] file ... .SH DESCRIPTION -.I File +This manual page documents version 3.22 of the +.B file +command. +.B File tests each argument in an attempt to classify it. There are three sets of tests, performed in this order: filesystem tests, magic number tests, and language tests. @@ -26,8 +29,11 @@ test that succeeds causes the file type to be printed. .PP The type printed will usually contain one of the words .B text -(the file contains only ASCII characters and is -probably safe to read on an ASCII terminal), +(the file contains only +.SM ASCII +characters and is probably safe to read on an +.SM ASCII +terminal), .B executable (the file contains the result of compiling a program in a form understandable to some \s-1UNIX\s0 kernel or another), @@ -46,7 +52,7 @@ Don't do as Berkeley did \- change ``shell commands text'' to ``shell script''. .PP The filesystem tests are based on examining the return from a -.IR stat (2) +.BR stat (2) system call. The program checks to see if the file is empty, or if it's some sort of special file. @@ -55,16 +61,16 @@ Any known file types appropriate to the system you are running on implement them) are intuited if they are defined in the system header file -.BR sys/stat.h . +.IR sys/stat.h . .PP The magic number tests are used to check for files with data in particular fixed formats. The canonical example of this is a binary executable (compiled program) -.B a.out +.I a.out file, whose format is defined in -.B a.out.h +.I a.out.h and possibly -.B exec.h +.I exec.h in the standard include directory. These files have a `magic number' stored in a particular place near the beginning of the file that tells the \s-1UNIX\s0 operating system @@ -78,21 +84,23 @@ The information in these files is read from the magic file If an argument appears to be an .SM ASCII file, -.I file +.B file attempts to guess its language. -The language tests look for particular strings (cf \fInames.h\fP) +The language tests look for particular strings (cf +.IR names.h ) that can appear anywhere in the first few blocks of a file. For example, the keyword .B .br -indicates that the file is most likely a troff input file, -just as the keyword +indicates that the file is most likely a +.BR troff (1) +input file, just as the keyword .B struct indicates a C program. These tests are less reliable than the previous two groups, so they are performed last. The language test routines also test for some miscellany (such as -.I tar +.BR tar (1) archives) and determine whether an unknown file should be labelled as `ascii text' or `data'. .SH OPTIONS @@ -125,7 +133,7 @@ to test the standard input, use ``-'' as a filename argument. .TP 8 .B \-L option causes symlinks to be followed, as the like-named option in -.IR ls (1). +.BR ls (1). (on systems that support symbolic links). .SH FILES .I /etc/magic @@ -135,10 +143,10 @@ The environment variable .B MAGIC can be used to set the default magic number files. .SH SEE ALSO -.IR magic (5) +.BR magic (5) \- description of magic file format. .br -.IR Strings (1), " od" (1) +.BR strings (1), " od" (1) \- tools for examining non-textfiles. .SH STANDARDS CONFORMANCE This program is believed to exceed the System V Interface Definition @@ -171,7 +179,7 @@ in an existing magic file would have to be changed to .br .PP SunOS releases 3.2 and later from Sun Microsystems include a -.IR file (1) +.BR file (1) command derived from the System V one, but with some extensions. My version differs from Sun's only in minor ways. It includes the extension of the `&' operator, used as, @@ -190,15 +198,15 @@ The order of entries in the magic file is significant. Depending on what system you are using, the order that they are put together may be incorrect. If your old -.I file +.B file command uses a magic file, keep the old magic file around for comparison purposes (rename it to .IR /etc/magic.orig ). .SH HISTORY There has been a -.I file -command in every UNIX since at least Research Version 6 +.B file +command in every \s-1UNIX\s0 since at least Research Version 6 (man page dated January, 1975). The System V version introduced one significant major change: the external list of magic number types. @@ -227,7 +235,7 @@ put the ``old-style'' `&' operator back the way it was, because 1) Rob McMahon's change broke the previous style of usage, 2) the SunOS ``new-style'' `&' operator, which this version of -.I file +.B file supports, also handles `x&y op z', and 3) Rob's change wasn't documented in any case; .PP @@ -236,11 +244,11 @@ put in multiple levels of `>'; put in ``beshort'', ``leshort'', etc. keywords to look at numbers in the file in a specific byte order, rather than in the native byte order of the process running -.IR file . +.BR file . .RE .PP Changes by Ian Darwin and various authors including -Christos Zoulas (christos@ee.cornell.edu), 1990-1992. +Christos Zoulas (christos@deshaw.com), 1990-1997. .SH LEGAL NOTICE Copyright (c) Ian F. Darwin, Toronto, Canada, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993. @@ -284,33 +292,42 @@ The files and .I is_tar.c were written by John Gilmore from his public-domain -.I tar +.B tar program, and are not covered by the above restrictions. .SH BUGS There must be a better way to automate the construction of the Magic file from all the glop in Magdir. What is it? Better yet, the magic file should be compiled into binary (say, -.IR ndbm (3) -or, better yet, fixed-length ASCII strings -for use in heterogenous network environments) for faster startup. +.BR ndbm (3) +or, better yet, fixed-length +.SM ASCII +strings for use in heterogenous network environments) for faster startup. Then the program would run as fast as the Version 7 program of the same name, with the flexibility of the System V version. .PP -.I File +.B File uses several algorithms that favor speed over accuracy, -thus it can be misled about the contents of ASCII files. +thus it can be misled about the contents of +.SM ASCII +files. .PP -The support for ASCII files (primarily for programming languages) +The support for +.SM ASCII +files (primarily for programming languages) is simplistic, inefficient and requires recompilation to update. .PP There should be an ``else'' clause to follow a series of continuation lines. .PP The magic file and keywords should have regular expression support. -Their use of ASCII TAB as a field delimiter is ugly and makes +Their use of +.SM "ASCII TAB" +as a field delimiter is ugly and makes it hard to edit the files, but is entrenched. .PP It might be advisable to allow upper-case letters in keywords -for e.g., troff commands vs man page macros. +for e.g., +.BR troff (1) +commands vs man page macros. Regular expression support would make this easy. .PP The program doesn't grok \s-2FORTRAN\s0. @@ -343,6 +360,6 @@ This manual page, and particularly this section, is too long. .SH AVAILABILITY You can obtain the original author's latest version by anonymous FTP on -.B tesla.ee.cornell.edu +.B ftp.deshaw.com in the directory -.BR /pub/file-X.YY.tar.gz +.I /pub/file/file-X.YY.tar.gz diff --git a/usr.bin/file/file.c b/usr.bin/file/file.c index fc114394317..95eeb944ca7 100644 --- a/usr.bin/file/file.c +++ b/usr.bin/file/file.c @@ -1,4 +1,5 @@ -/* $OpenBSD: file.c,v 1.4 1997/01/15 23:42:26 millert Exp $ */ +/* $OpenBSD: file.c,v 1.5 1997/02/09 23:58:22 millert Exp $ */ + /* * file - find type of a file or files - main program. * @@ -26,7 +27,7 @@ * 4. This notice may not be removed or altered. */ #ifndef lint -static char *moduleid = "$OpenBSD: file.c,v 1.4 1997/01/15 23:42:26 millert Exp $"; +static char *moduleid = "$OpenBSD: file.c,v 1.5 1997/02/09 23:58:22 millert Exp $"; #endif /* lint */ #include <stdio.h> @@ -37,15 +38,17 @@ static char *moduleid = "$OpenBSD: file.c,v 1.4 1997/01/15 23:42:26 millert Exp #include <sys/stat.h> #include <fcntl.h> /* for open() */ #if (__COHERENT__ >= 0x420) -#include <sys/utime.h> +# include <sys/utime.h> #else -#include <utime.h> +# ifdef USE_UTIMES +# include <sys/time.h> +# else +# include <utime.h> +# endif #endif #include <unistd.h> /* for read() */ -#ifdef __ELF__ -#include <elf.h> -#endif +#include <netinet/in.h> /* for byte swapping */ #include "patchlevel.h" #include "file.h" @@ -76,7 +79,11 @@ char *progname; /* used throughout */ int lineno; /* line number in the magic file */ -static void unwrap __P((char *fn)); +static void unwrap __P((char *fn)); +#if 0 +static int byteconv4 __P((int, int, int)); +static short byteconv2 __P((int, int, int)); +#endif /* * main - parse arguments and handle options @@ -180,20 +187,25 @@ char *fn; FILE *f; int wid = 0, cwid; - if ((f = fopen(fn, "r")) == NULL) { - error("Cannot open `%s' (%s).\n", fn, strerror(errno)); - /*NOTREACHED*/ - } + if (strcmp("-", fn) == 0) { + f = stdin; + wid = 1; + } else { + if ((f = fopen(fn, "r")) == NULL) { + error("Cannot open `%s' (%s).\n", fn, strerror(errno)); + /*NOTREACHED*/ + } - while (fgets(buf, MAXPATHLEN, f) != NULL) { - cwid = strlen(buf) - 1; - if (cwid > wid) - wid = cwid; - } + while (fgets(buf, sizeof(buf), f) != NULL) { + cwid = strlen(buf) - 1; + if (cwid > wid) + wid = cwid; + } - rewind(f); + rewind(f); + } - while (fgets(buf, MAXPATHLEN, f) != NULL) { + while (fgets(buf, sizeof(buf), f) != NULL) { buf[strlen(buf)-1] = '\0'; process(buf, wid); } @@ -202,6 +214,71 @@ char *fn; } +#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 + */ +static int +byteconv4(from, same, big_endian) + 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 + */ +static short +byteconv2(from, same, big_endian) + 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 + /* * process - process input file */ @@ -213,7 +290,6 @@ int wid; int fd = 0; static const char stdname[] = "standard input"; unsigned char buf[HOWMANY+1]; /* one extra for terminating '\0' */ - struct utimbuf utbuf; struct stat sb; int nbytes = 0; /* number of bytes read from a datafile */ char match = '\0'; @@ -265,56 +341,33 @@ int wid; buf[nbytes++] = '\0'; /* null-terminate it */ match = tryit(buf, nbytes, zflag); } -#ifdef __ELF__ - /* - * ELF executables have multiple section headers in arbitrary - * file locations and thus file(1) cannot determine it from easily. - * Instead we traverse thru all section headers until a symbol table - * one is found or else the binary is stripped. - * XXX: This will not work for binaries of a different byteorder. - * Should come up with a better fix. - */ - - if (match == 's' && nbytes > sizeof (Elf32_Ehdr) && - buf[EI_MAG0] == ELFMAG0 && - buf[EI_MAG1] == ELFMAG1 && - buf[EI_MAG2] == ELFMAG2 && - buf[EI_MAG3] == ELFMAG3) { - - union { - long l; - char c[sizeof (long)]; - } u; - Elf32_Ehdr elfhdr; - int stripped = 1; - u.l = 1; - (void) memcpy(&elfhdr, buf, sizeof elfhdr); +#ifdef BUILTIN_ELF + if (match == 's' && nbytes > 5) + tryelf(fd, buf, nbytes); +#endif + if (inname != stdname) { +#ifdef RESTORE_TIME /* - * If the system byteorder does not equal the object byteorder - * then don't test. + * Try to restore access, modification times if read it. */ - if ((u.c[sizeof(long) - 1] + 1) == elfhdr.e_ident[5]) { - if (lseek(fd, elfhdr.e_shoff, SEEK_SET)<0) - error("lseek failed (%s).\n", strerror(errno)); - - for ( ; elfhdr.e_shnum ; elfhdr.e_shnum--) { - if (read(fd, buf, elfhdr.e_shentsize)<0) - error("read failed (%s).\n", strerror(errno)); - if (((Elf32_Shdr *)&buf)->sh_type == SHT_SYMTAB) { - stripped = 0; - break; - } - } - if (stripped) - (void) printf (", stripped"); - } - } +# ifdef USE_UTIMES + struct timeval utsbuf[2]; + utsbuf[0].tv_sec = sb.st_atime; + utsbuf[1].tv_sec = sb.st_mtime; + + (void) utimes(inname, utsbuf); /* don't care if loses */ +# else + struct utimbuf utbuf; + + utbuf.actime = sb.st_atime; + utbuf.modtime = sb.st_mtime; + (void) utime(inname, &utbuf); /* don't care if loses */ +# endif #endif - - if (inname != stdname) (void) close(fd); + } (void) putchar('\n'); } @@ -336,6 +389,10 @@ int nb, zflag; if (ascmagic(buf, nb)) return 'a'; + /* see if it's international language text */ + if (internatmagic(buf, nb)) + return 'i'; + /* abandon hope, all ye who remain here */ ckfputs("data", stdout); return '\0'; diff --git a/usr.bin/file/file.h b/usr.bin/file/file.h index 0fa7a831061..579eec21f15 100644 --- a/usr.bin/file/file.h +++ b/usr.bin/file/file.h @@ -1,4 +1,5 @@ -/* * @(#)$OpenBSD: file.h,v 1.2 1996/06/26 05:32:57 deraadt Exp $*/ +/* $OpenBSD: file.h,v 1.3 1997/02/09 23:58:23 millert Exp $ */ + /* * file.h - definitions for file(1) program * @@ -26,6 +27,12 @@ * 4. This notice may not be removed or altered. */ +#ifndef __file_h__ +#define __file_h__ + +typedef int32_t int32; +typedef u_int32_t uint32; + #ifndef HOWMANY # define HOWMANY 8192 /* how much of the file to look at */ #endif @@ -37,12 +44,13 @@ struct magic { short flag; #define INDIR 1 /* if '>(...)' appears, */ #define UNSIGNED 2 /* comparison is unsigned */ +#define ADD 4 /* if '>&' appears, */ short cont_level; /* level of ">" */ struct { char type; /* byte short long */ - long offset; /* offset from indirection */ + int32 offset; /* offset from indirection */ } in; - long offset; /* offset to magic number */ + int32 offset; /* offset to magic number */ unsigned char reln; /* relation (0=eq, '>'=gt, etc) */ char type; /* int, short, long or string. */ char vallen; /* length of string value, if any */ @@ -60,12 +68,12 @@ struct magic { union VALUETYPE { unsigned char b; unsigned short h; - unsigned long l; + uint32 l; char s[MAXstring]; unsigned char hs[2]; /* 2 bytes of a fixed-endian "short" */ unsigned char hl[4]; /* 2 bytes of a fixed-endian "long" */ } value; /* either number or string */ - unsigned long mask; /* mask before comparison with value */ + uint32 mask; /* mask before comparison with value */ char nospflag; /* supress space character */ char desc[MAXDESC]; /* description */ }; @@ -97,8 +105,9 @@ extern int softmagic __P((unsigned char *, int)); extern int tryit __P((unsigned char *, int, int)); extern int zmagic __P((unsigned char *, int)); extern void ckfprintf __P((FILE *, const char *, ...)); -extern unsigned long signextend __P((struct magic *, unsigned long)); - +extern uint32 signextend __P((struct magic *, unsigned int32)); +extern int internatmagic __P((unsigned char *, int)); +extern void tryelf __P((int, char *, int)); extern int errno; /* Some unixes don't define this.. */ @@ -118,7 +127,16 @@ extern int lflag; /* follow symbolic links? */ extern int optind; /* From getopt(3) */ extern char *optarg; -#if !defined(__STDC__) || defined(sun) || defined(__sun__) || defined(__convex__) +#if defined(sun) || defined(__sun__) || defined (__sun) +# if defined(__svr4) || defined (__SVR4) || defined(__svr4__) +# define SOLARIS +# else +# define SUNOS +# endif +#endif + + +#if !defined(__STDC__) || defined(SUNOS) || defined(__convex__) extern int sys_nerr; extern char *sys_errlist[]; #define strerror(e) \ @@ -129,3 +147,5 @@ extern char *sys_errlist[]; #ifndef MAXPATHLEN #define MAXPATHLEN 512 #endif + +#endif /* __file_h__ */ diff --git a/usr.bin/file/fsmagic.c b/usr.bin/file/fsmagic.c index 33cd2dbfcb5..f5ba6ee0b4e 100644 --- a/usr.bin/file/fsmagic.c +++ b/usr.bin/file/fsmagic.c @@ -1,4 +1,5 @@ -/* $OpenBSD: fsmagic.c,v 1.2 1996/06/26 05:32:57 deraadt Exp $ */ +/* $OpenBSD: fsmagic.c,v 1.3 1997/02/09 23:58:24 millert Exp $ */ + /* * fsmagic - magic based on filesystem info - directory, special files, etc. * @@ -32,6 +33,11 @@ #include <sys/stat.h> #include <unistd.h> #include <stdlib.h> +#ifndef major +# if defined(__SVR4) || defined(_SVR4_SOURCE) +# include <sys/mkdev.h> +# endif +#endif #ifndef major /* if `major' not defined in types.h, */ #include <sys/sysmacros.h> /* try this one. */ #endif @@ -46,7 +52,7 @@ #include "file.h" #ifndef lint -static char *moduleid = "$OpenBSD: fsmagic.c,v 1.2 1996/06/26 05:32:57 deraadt Exp $"; +static char *moduleid = "$OpenBSD: fsmagic.c,v 1.3 1997/02/09 23:58:24 millert Exp $"; #endif /* lint */ int @@ -84,12 +90,12 @@ struct stat *sb; ckfputs("directory", stdout); return 1; case S_IFCHR: - (void) printf("character special (%d/%d)", - major(sb->st_rdev), minor(sb->st_rdev)); + (void) printf("character special (%ld/%ld)", + (long) major(sb->st_rdev), (long) minor(sb->st_rdev)); return 1; case S_IFBLK: - (void) printf("block special (%d/%d)", - major(sb->st_rdev), minor(sb->st_rdev)); + (void) printf("block special (%ld/%ld)", + (long) major(sb->st_rdev), (long) minor(sb->st_rdev)); return 1; /* TODO add code to handle V7 MUX and Blit MUX files */ #ifdef S_IFIFO diff --git a/usr.bin/file/internat.c b/usr.bin/file/internat.c new file mode 100644 index 00000000000..6ffe9e34232 --- /dev/null +++ b/usr.bin/file/internat.c @@ -0,0 +1,75 @@ +/* $OpenBSD: internat.c,v 1.1 1997/02/09 23:58:26 millert Exp $ */ + +#include <string.h> +#include <sys/types.h> + +#include "file.h" + +#define F 0 +#define T 1 + +/* + * List of characters that look "reasonable" in international + * language texts. That's almost all characters :), except a + * few in the control range of ASCII (all the known international + * charactersets share the bottom half with ASCII). + */ +static char maybe_internat[256] = { + F, F, F, F, F, F, F, F, T, T, T, T, T, T, F, F, /* 0x0X */ + F, F, F, F, F, F, F, F, F, F, F, T, F, F, F, F, /* 0x1X */ + T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, /* 0x2X */ + T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, /* 0x3X */ + T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, /* 0x4X */ + T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, /* 0x5X */ + T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, /* 0x6X */ + T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, F, /* 0x7X */ + T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, /* 0x8X */ + T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, /* 0x9X */ + T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, /* 0xaX */ + T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, /* 0xbX */ + T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, /* 0xcX */ + T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, /* 0xdX */ + T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, /* 0xeX */ + T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, T /* 0xfX */ +}; + +/* Maximal length of a line we consider "reasonable". */ +#define MAXLINELEN 300 + +int +internatmagic(buf, nbytes) + unsigned char *buf; + int nbytes; +{ + int i; + unsigned char *cp; + + nbytes--; + + /* First, look whether there are "unreasonable" characters. */ + for (i = 0, cp = buf; i < nbytes; i++, cp++) + if (!maybe_internat[*cp]) + return 0; + + /* + * Now, look whether the file consists of lines of + * "reasonable" length. + */ + + for (i = 0; i < nbytes;) { + cp = memchr(buf, '\n', nbytes - i); + if (cp == NULL) { + /* Don't fail if we hit the end of buffer. */ + if (i + MAXLINELEN >= nbytes) + break; + else + return 0; + } + if (cp - buf > MAXLINELEN) + return 0; + i += (cp - buf + 1); + buf = cp + 1; + } + ckfputs("International language text", stdout); + return 1; +} diff --git a/usr.bin/file/is_tar.c b/usr.bin/file/is_tar.c index c6ebe06e2a4..ec10f41e9bf 100644 --- a/usr.bin/file/is_tar.c +++ b/usr.bin/file/is_tar.c @@ -1,4 +1,5 @@ -/* $OpenBSD: is_tar.c,v 1.2 1996/06/26 05:32:58 deraadt Exp $ */ +/* $OpenBSD: is_tar.c,v 1.3 1997/02/09 23:58:27 millert Exp $ */ + /* * is_tar() -- figure out whether file is a tar archive. * @@ -19,9 +20,9 @@ #define isodigit(c) ( ((c) >= '0') && ((c) <= '7') ) #if defined(__STDC__) || defined(__cplusplus) -static long from_oct(int, char*); /* Decode octal number */ +static int from_oct(int, char*); /* Decode octal number */ #else -static long from_oct(); +static int from_oct(); #endif /* @@ -37,7 +38,7 @@ int nbytes; { register union record *header = (union record *)buf; register int i; - register long sum, recsum; + register int sum, recsum; register char *p; if (nbytes < sizeof(union record)) @@ -75,12 +76,12 @@ int nbytes; * * Result is -1 if the field is invalid (all blank, or nonoctal). */ -static long +static int from_oct(digs, where) register int digs; register char *where; { - register long value; + register int value; while (isspace(*where)) { /* Skip spaces */ where++; diff --git a/usr.bin/file/magdir/Localstuff b/usr.bin/file/magdir/Localstuff index 9c4d992483c..c20418c3a38 100644 --- a/usr.bin/file/magdir/Localstuff +++ b/usr.bin/file/magdir/Localstuff @@ -1,7 +1,6 @@ -# $OpenBSD: Localstuff,v 1.2 1996/06/26 05:33:03 deraadt Exp $ - #------------------------------------------------------------------------------ # Localstuff: file(1) magic for locally observed files # +# $OpenBSD: Localstuff,v 1.3 1997/02/09 23:58:40 millert Exp $ # Add any locally observed files here. Remember: # text if readable, executable if runnable binary, data if unreadable. diff --git a/usr.bin/file/magic.5 b/usr.bin/file/magic.5 index bd93f5e75d7..26cece42f0d 100644 --- a/usr.bin/file/magic.5 +++ b/usr.bin/file/magic.5 @@ -1,17 +1,20 @@ -.\" @(#)$OpenBSD: magic.5,v 1.2 1996/06/26 05:32:59 deraadt Exp $ +.\" $OpenBSD: magic.5,v 1.3 1997/02/09 23:58:28 millert Exp $ +.\" install as magic.4 on USG, magic.5 on V7 or Berkeley systems. .TH MAGIC 5 "Public Domain" -.\" install as magic.5 on USG, magic.5 on V7 or Berkeley systems. .SH NAME magic \- file command's magic number file .SH DESCRIPTION -The -.IR file (1) +This manual page documents the format of the magic file as +used by the +.BR file (1) +command, version 3.22. The +.B file command identifies the type of a file using, among other tests, a test for whether the file begins with a certain .IR "magic number" . The file -.B /etc/magic +.I /etc/magic specifies what magic numbers are to be tested for, what message to print if a particular magic number is found, and additional information to extract from the file. @@ -114,7 +117,7 @@ then presumably print that string, by doing .IP message The message to be printed if the comparison succeeds. If the string contains a -.IR printf (3S) +.BR printf (3S) format specification, the value from the file (with any specified masking performed) is printed using the message as the format string. .PP @@ -157,6 +160,15 @@ type specifier. To that number the value of .I y is added and the result is used as an offset in the file. The default type if one is not specified is long. +.PP +Sometimes you do not know the exact offset as this depends on the length of +preceding fields. You can specify an offset relative to the end of the +last uplevel field (of course this may only be done for sublevel tests, i.e. +test beginning with +.B > +). Such a relative offset is specified using +.B & +as a prefix to the offset. .SH BUGS The formats .IR long , @@ -177,7 +189,7 @@ a system on which the lengths are invariant. There is (currently) no support for specified-endian data to be used in indirect offsets. .SH SEE ALSO -.IR file (1) +.BR file (1) \- the command that reads this file. .\" .\" From: guy@sun.uucp (Guy Harris) diff --git a/usr.bin/file/names.h b/usr.bin/file/names.h index 7d0f2dae9ff..23c99c83b52 100644 --- a/usr.bin/file/names.h +++ b/usr.bin/file/names.h @@ -1,4 +1,5 @@ -/* * $OpenBSD: names.h,v 1.2 1996/06/26 05:32:59 deraadt Exp $*/ +/* $OpenBSD: names.h,v 1.3 1997/02/09 23:58:29 millert Exp $ */ + /* * Names.h - names and types used by ascmagic in file(1). * These tokens are here because they can appear anywhere in @@ -10,22 +11,23 @@ * Written by Ian F. Darwin. * * See LEGAL.NOTICE - * */ /* these types are used to index the table 'types': keep em in sync! */ #define L_C 0 /* first and foremost on UNIX */ -#define L_FORT 1 /* the oldest one */ -#define L_MAKE 2 /* Makefiles */ -#define L_PLI 3 /* PL/1 */ -#define L_MACH 4 /* some kinda assembler */ -#define L_ENG 5 /* English */ -#define L_PAS 6 /* Pascal */ -#define L_MAIL 7 /* Electronic mail */ -#define L_NEWS 8 /* Usenet Netnews */ +#define L_CC 1 /* Bjarne's postincrement */ +#define L_FORT 2 /* the oldest one */ +#define L_MAKE 3 /* Makefiles */ +#define L_PLI 4 /* PL/1 */ +#define L_MACH 5 /* some kinda assembler */ +#define L_ENG 6 /* English */ +#define L_PAS 7 /* Pascal */ +#define L_MAIL 8 /* Electronic mail */ +#define L_NEWS 9 /* Usenet Netnews */ static char *types[] = { "C program text", + "C++ program text", "FORTRAN program text", "make commands text" , "PL/1 program text", @@ -43,6 +45,12 @@ static struct names { } names[] = { /* These must be sorted by eye for optimal hit rate */ /* Add to this list only after substantial meditation */ + {"//", L_CC}, + {"template", L_CC}, + {"virtual", L_CC}, + {"class", L_CC}, + {"public:", L_CC}, + {"private:", L_CC}, {"/*", L_C}, /* must precede "The", "the", etc. */ {"#include", L_C}, {"char", L_C}, diff --git a/usr.bin/file/patchlevel.h b/usr.bin/file/patchlevel.h index 0109d131cd1..ac808a71f92 100644 --- a/usr.bin/file/patchlevel.h +++ b/usr.bin/file/patchlevel.h @@ -1,23 +1,33 @@ -/* * $OpenBSD: patchlevel.h,v 1.3 1996/06/26 05:33:00 deraadt Exp $*/ +/* $OpenBSD: patchlevel.h,v 1.4 1997/02/09 23:58:31 millert Exp $ */ + #define FILE_VERSION_MAJOR 3 -#define patchlevel 19 +#define patchlevel 22 /* * Patchlevel file for Ian Darwin's MAGIC command. * - * $Log: patchlevel.h,v $ - * Revision 1.3 1996/06/26 05:33:00 deraadt - * rcsid + * Log: patchlevel.h,v + * Revision 1.22 1997/01/15 17:23:24 christos + * - add support for elf core files: find the program name under SVR4 [Ken Pizzini] + * - print strings only up to the first carriage return [various] + * - freebsd international ascii support [J Wunsch] + * - magic fixes and additions [Guy Harris] + * - 64 bit fixes [Larry Schwimmer] + * - support for both utime and utimes, but don't restore file access times + * by default [various] + * - \xXX only takes 2 hex digits, not 3. + * - re-implement support for core files [Guy Harris] * - * Revision 1.2 1995/12/14 03:30:04 deraadt - * update from netbsd + * Revision 1.21 1996/10/05 18:15:29 christos + * Segregate elf stuff and conditionally enable it with -DBUILTIN_ELF + * More magic fixes * - * Revision 1.5 1995/10/27 23:33:21 christos - * Update to file-3.19. - * - Magic fixes - * - MAGIC environment variable processing - * - Better LEGAL.NOTICE - * - -m magic : separated list of magic files processing + * Revision 1.20 1996/06/22 22:15:52 christos + * - support relative offsets of the form >& + * - fix bug with truncating magic strings that contain \n + * - file -f - did not read from stdin as documented + * - support elf file parsing using our own elf support. + * - as always magdir fixes and additions. * * Revision 1.19 1995/10/27 23:14:46 christos * Ability to parse colon separated list of magic files diff --git a/usr.bin/file/print.c b/usr.bin/file/print.c index 839bf0447c4..089d1f28422 100644 --- a/usr.bin/file/print.c +++ b/usr.bin/file/print.c @@ -1,4 +1,5 @@ -/* $OpenBSD: print.c,v 1.2 1996/06/26 05:33:00 deraadt Exp $ */ +/* $OpenBSD: print.c,v 1.3 1997/02/09 23:58:32 millert Exp $ */ + /* * print.c - debugging printout routines * @@ -40,7 +41,7 @@ #include "file.h" #ifndef lint -static char *moduleid = "$OpenBSD: print.c,v 1.2 1996/06/26 05:33:00 deraadt Exp $"; +static char *moduleid = "$OpenBSD: print.c,v 1.3 1997/02/09 23:58:32 millert Exp $"; #endif /* lint */ #define SZOF(a) (sizeof(a) / sizeof(a[0])) @@ -58,7 +59,7 @@ struct magic *m; m->offset); if (m->flag & INDIR) - (void) fprintf(stderr, "(%s,%ld),", + (void) fprintf(stderr, "(%s,%d),", (m->in.type >= 0 && m->in.type < SZOF(typ)) ? typ[(unsigned char) m->in.type] : "*bad*", @@ -69,7 +70,7 @@ struct magic *m; typ[(unsigned char) m->type] : "*bad*"); if (m->mask != ~0L) - (void) fprintf(stderr, " & %.8lx", m->mask); + (void) fprintf(stderr, " & %.8x", m->mask); (void) fprintf(stderr, ",%c", m->reln); @@ -82,7 +83,7 @@ struct magic *m; case LELONG: case BESHORT: case BELONG: - (void) fprintf(stderr, "%ld", m->value.l); + (void) fprintf(stderr, "%d", m->value.l); break; case STRING: showstr(stderr, m->value.s, -1); diff --git a/usr.bin/file/readelf.c b/usr.bin/file/readelf.c new file mode 100644 index 00000000000..7f4f97bb4bd --- /dev/null +++ b/usr.bin/file/readelf.c @@ -0,0 +1,315 @@ +/* $OpenBSD: readelf.c,v 1.1 1997/02/09 23:58:33 millert Exp $ */ + +#ifdef BUILTIN_ELF +#include <sys/types.h> +#include <string.h> +#include <stdio.h> +#include <ctype.h> +#include <stdlib.h> +#include <unistd.h> +#include <errno.h> + +#include "readelf.h" +#include "file.h" + +static void +doshn(fd, off, num, size, buf) + int fd; + off_t off; + int num; + size_t size; + char *buf; +{ + /* + * This works for both 32-bit and 64-bit ELF formats, + * because it looks only at the "sh_type" field, which is + * always 32 bits, and is preceded only by the "sh_name" + * field which is also always 32 bits, and because it uses + * the shdr size from the ELF header rather than using + * the size of an "Elf32_Shdr". + */ + Elf32_Shdr *sh = (Elf32_Shdr *) buf; + + if (lseek(fd, off, SEEK_SET) == -1) + error("lseek failed (%s).\n", strerror(errno)); + + for ( ; num; num--) { + if (read(fd, buf, size) == -1) + error("read failed (%s).\n", strerror(errno)); + if (sh->sh_type == SHT_SYMTAB) { + (void) printf (", not stripped"); + return; + } + } + (void) printf (", stripped"); +} + +/* + * Look through the program headers of an executable image, searching + * for a PT_INTERP section; if one is found, it's dynamically linked, + * otherwise it's statically linked. + */ +static void +dophn_exec(fd, off, num, size, buf) + int fd; + off_t off; + int num; + size_t size; + char *buf; +{ + /* I am not sure if this works for 64 bit elf formats */ + Elf32_Phdr *ph = (Elf32_Phdr *) buf; + + if (lseek(fd, off, SEEK_SET) == -1) + error("lseek failed (%s).\n", strerror(errno)); + + for ( ; num; num--) { + if (read(fd, buf, size) == -1) + error("read failed (%s).\n", strerror(errno)); + if (ph->p_type == PT_INTERP) { + /* + * Has an interpreter - must be a dynamically-linked + * executable. + */ + printf(", dynamically linked"); + return; + } + } + printf(", statically linked"); +} + +size_t prpsoffsets[] = { + 100, /* SunOS 5.x */ + 32, /* Linux */ +}; + +#define NOFFSETS (sizeof prpsoffsets / sizeof prpsoffsets[0]) + +/* + * Look through the program headers of an executable image, searching + * for a PT_NOTE section of type NT_PRPSINFO, with a name "CORE"; if one + * is found, try looking in various places in its contents for a 16-character + * string containing only printable characters - if found, that string + * should be the name of the program that dropped core. + * Note: right after that 16-character string is, at least in SunOS 5.x + * (and possibly other SVR4-flavored systems) and Linux, a longer string + * (80 characters, in 5.x, probably other SVR4-flavored systems, and Linux) + * containing the start of the command line for that program. + */ +static void +dophn_core(fd, off, num, size, buf) + int fd; + off_t off; + int num; + size_t size; + char *buf; +{ + /* + * This doesn't work for 64-bit ELF, as the "p_offset" field is + * 64 bits in 64-bit ELF. + */ + /* + * This doesn't work for 64-bit ELF, as the "p_offset" field is + * 64 bits in 64-bit ELF. + */ + Elf32_Phdr *ph = (Elf32_Phdr *) buf; + Elf32_Nhdr *nh; + size_t offset, noffset, reloffset; + unsigned char c; + int i, j; + char nbuf[BUFSIZ]; + int bufsize; + + for ( ; num; num--) { + if (lseek(fd, off, SEEK_SET) == -1) + error("lseek failed (%s).\n", strerror(errno)); + if (read(fd, buf, size) == -1) + error("read failed (%s).\n", strerror(errno)); + off += size; + if (ph->p_type != PT_NOTE) + continue; + if (lseek(fd, ph->p_offset, SEEK_SET) == -1) + error("lseek failed (%s).\n", strerror(errno)); + bufsize = read(fd, nbuf, BUFSIZ); + if (bufsize == -1) + error("read failed (%s).\n", strerror(errno)); + offset = 0; + for (;;) { + if (offset >= bufsize) + break; + nh = (Elf32_Nhdr *)&nbuf[offset]; + offset += sizeof *nh; + + /* + * If this note isn't an NT_PRPSINFO note, it's + * not what we're looking for. + */ + if (nh->n_type != NT_PRPSINFO) { + offset += nh->n_namesz; + offset = ((offset + 3)/4)*4; + offset += nh->n_descsz; + offset = ((offset + 3)/4)*4; + continue; + } + + /* + * Make sure this note has the name "CORE". + */ + if (offset + nh->n_namesz >= bufsize) { + /* + * We're past the end of the buffer. + */ + break; + } + if (nh->n_namesz != 5 + || strcmp(&nbuf[offset], "CORE") != 0) + continue; + offset += nh->n_namesz; + offset = ((offset + 3)/4)*4; + + /* + * Extract the program name. We assume it to be + * 16 characters (that's what it is in SunOS 5.x + * and Linux). + * + * Unfortunately, it's at a different offset in + * SunOS 5.x and Linux, so try multiple offsets. + * If the characters aren't all printable, reject + * it. + */ + for (i = 0; i < NOFFSETS; i++) { + reloffset = prpsoffsets[i]; + noffset = offset + reloffset; + for (j = 0; j < 16; + j++, noffset++, reloffset++) { + /* + * Make sure we're not past the end + * of the buffer; if we are, just + * give up. + */ + if (noffset >= bufsize) + return; + + /* + * Make sure we're not past the + * end of the contents; if we + * are, this obviously isn't + * the right offset. + */ + if (reloffset >= nh->n_descsz) + goto tryanother; + + c = nbuf[noffset]; + if (c != '\0' && !isprint(c)) + goto tryanother; + } + + /* + * Well, that worked. + */ + printf(", from '%.16s'", + &nbuf[offset + prpsoffsets[i]]); + return; + + tryanother: + ; + } + offset += nh->n_descsz; + offset = ((offset + 3)/4)*4; + } + } +} + +void +tryelf(fd, buf, nbytes) + int fd; + char *buf; + int nbytes; +{ + union { + int32 l; + char c[sizeof (int32)]; + } u; + + /* + * ELF executables have multiple section headers in arbitrary + * file locations and thus file(1) cannot determine it from easily. + * Instead we traverse thru all section headers until a symbol table + * one is found or else the binary is stripped. + */ + if (buf[EI_MAG0] != ELFMAG0 || buf[EI_MAG1] != ELFMAG1 + || buf[EI_MAG2] != ELFMAG2 || buf[EI_MAG3] != ELFMAG3) + return; + + + if (buf[4] == ELFCLASS32) { + Elf32_Ehdr elfhdr; + if (nbytes <= sizeof (Elf32_Ehdr)) + return; + + + u.l = 1; + (void) memcpy(&elfhdr, buf, sizeof elfhdr); + /* + * If the system byteorder does not equal the + * object byteorder then don't test. + * XXX - we could conceivably fix up the "dophn_XXX()" and + * "doshn()" routines to extract stuff in the right + * byte order.... + */ + if ((u.c[sizeof(long) - 1] + 1) == elfhdr.e_ident[5]) { + if (elfhdr.e_type == ET_CORE) + dophn_core(fd, elfhdr.e_phoff, elfhdr.e_phnum, + elfhdr.e_phentsize, buf); + else { + if (elfhdr.e_type == ET_EXEC) { + dophn_exec(fd, elfhdr.e_phoff, + elfhdr.e_phnum, + elfhdr.e_phentsize, buf); + } + doshn(fd, elfhdr.e_shoff, elfhdr.e_shnum, + elfhdr.e_shentsize, buf); + } + } + return; + } + + if (buf[4] == ELFCLASS64) { + Elf64_Ehdr elfhdr; + if (nbytes <= sizeof (Elf64_Ehdr)) + return; + + + u.l = 1; + (void) memcpy(&elfhdr, buf, sizeof elfhdr); + + /* + * If the system byteorder does not equal the + * object byteorder then don't test. + * XXX - we could conceivably fix up the "dophn_XXX()" and + * "doshn()" routines to extract stuff in the right + * byte order.... + */ + if ((u.c[sizeof(long) - 1] + 1) == elfhdr.e_ident[5]) { +#ifdef notyet + if (elfhdr.e_type == ET_CORE) + dophn_core(fd, elfhdr.e_phoff, elfhdr.e_phnum, + elfhdr.e_phentsize, buf); + else +#endif + { +#ifdef notyet + if (elfhdr.e_type == ET_EXEC) { + dophn_exec(fd, elfhdr.e_phoff, + elfhdr.e_phnum, + elfhdr.e_phentsize, buf); + } +#endif + doshn(fd, elfhdr.e_shoff, elfhdr.e_shnum, + elfhdr.e_shentsize, buf); + } + } + return; + } +} +#endif diff --git a/usr.bin/file/readelf.h b/usr.bin/file/readelf.h new file mode 100644 index 00000000000..bf661012747 --- /dev/null +++ b/usr.bin/file/readelf.h @@ -0,0 +1,168 @@ +/* $OpenBSD: readelf.h,v 1.1 1997/02/09 23:58:34 millert Exp $ */ + +/* + * readelf.h + * + * Provide elf data structures for non-elf machines, allowing file + * non-elf hosts to determine if an elf binary is stripped. + * Note: cobbled from the linux header file, with modifications + */ +#ifndef __fake_elf_h__ +#define __fake_elf_h__ + +typedef unsigned int Elf32_Addr; +typedef unsigned short Elf32_Half; +typedef unsigned int Elf32_Off; +typedef unsigned int Elf32_Word; +typedef unsigned char Elf32_Char; + +/* XXX: We need 64 bit numbers here */ +typedef unsigned int Elf64_Addr[2]; +typedef unsigned short Elf64_Half; +typedef unsigned int Elf64_Off[2]; +typedef unsigned int Elf64_Word; +typedef unsigned char Elf64_Char; + +#define EI_NIDENT 16 + +typedef struct { + Elf32_Char e_ident[EI_NIDENT]; + Elf32_Half e_type; + Elf32_Half e_machine; + Elf32_Word e_version; + Elf32_Addr e_entry; /* Entry point */ + Elf32_Off e_phoff; + Elf32_Off e_shoff; + Elf32_Word e_flags; + Elf32_Half e_ehsize; + Elf32_Half e_phentsize; + Elf32_Half e_phnum; + Elf32_Half e_shentsize; + Elf32_Half e_shnum; + Elf32_Half e_shstrndx; +} Elf32_Ehdr; + +typedef struct { + Elf64_Char e_ident[EI_NIDENT]; + Elf64_Half e_type; + Elf64_Half e_machine; + Elf64_Word e_version; + Elf64_Addr e_entry; /* Entry point */ + Elf64_Off e_phoff; + Elf64_Off e_shoff; + Elf64_Word e_flags; + Elf64_Half e_ehsize; + Elf64_Half e_phentsize; + Elf64_Half e_phnum; + Elf64_Half e_shentsize; + Elf64_Half e_shnum; + Elf64_Half e_shstrndx; +} Elf64_Ehdr; + +/* e_type */ +#define ET_EXEC 2 +#define ET_CORE 4 + +/* sh_type */ +#define SHT_SYMTAB 2 +#define SHT_NOTE 7 + +/* elf type */ +#define ELFDATANONE 0 /* e_ident[EI_DATA] */ +#define ELFDATA2LSB 1 +#define ELFDATA2MSB 2 + +/* elf class */ +#define ELFCLASSNONE 0 +#define ELFCLASS32 1 +#define ELFCLASS64 2 + +/* magic number */ +#define EI_MAG0 0 /* e_ident[] indexes */ +#define EI_MAG1 1 +#define EI_MAG2 2 +#define EI_MAG3 3 +#define EI_CLASS 4 +#define EI_DATA 5 +#define EI_VERSION 6 +#define EI_PAD 7 + +#define ELFMAG0 0x7f /* EI_MAG */ +#define ELFMAG1 'E' +#define ELFMAG2 'L' +#define ELFMAG3 'F' +#define ELFMAG "\177ELF" + +typedef struct { + Elf32_Word p_type; + Elf32_Off p_offset; + Elf32_Addr p_vaddr; + Elf32_Addr p_paddr; + Elf32_Word p_filesz; + Elf32_Word p_memsz; + Elf32_Word p_flags; + Elf32_Word p_align; +} Elf32_Phdr; + +#define PT_NULL 0 /* p_type */ +#define PT_LOAD 1 +#define PT_DYNAMIC 2 +#define PT_INTERP 3 +#define PT_NOTE 4 +#define PT_SHLIB 5 +#define PT_PHDR 6 +#define PT_NUM 7 + +typedef struct { + Elf32_Word sh_name; + Elf32_Word sh_type; + Elf32_Word sh_flags; + Elf32_Addr sh_addr; + Elf32_Off sh_offset; + Elf32_Word sh_size; + Elf32_Word sh_link; + Elf32_Word sh_info; + Elf32_Word sh_addralign; + Elf32_Word sh_entsize; +} Elf32_Shdr; + +typedef struct { + Elf64_Word sh_name; + Elf64_Word sh_type; + Elf64_Off sh_flags; + Elf64_Addr sh_addr; + Elf64_Off sh_offset; + Elf64_Off sh_size; + Elf64_Word sh_link; + Elf64_Word sh_info; + Elf64_Off sh_addralign; + Elf64_Off sh_entsize; +} Elf64_Shdr; + +/* Notes used in ET_CORE */ +#define NT_PRSTATUS 1 +#define NT_PRFPREG 2 +#define NT_PRPSINFO 3 +#define NT_TASKSTRUCT 4 + +/* Note header in a PT_NOTE section */ +typedef struct elf_note { + Elf32_Word n_namesz; /* Name size */ + Elf32_Word n_descsz; /* Content size */ + Elf32_Word n_type; /* Content type */ +} Elf32_Nhdr; + +typedef struct { + Elf64_Word n_namesz; + Elf64_Word n_descsz; + Elf64_Word n_type; +} Elf64_Nhdr; + +#define NT_PRSTATUS 1 +#define NT_PRFPREG 2 +#define NT_PRPSINFO 3 +#define NT_PRXREG 4 +#define NT_PLATFORM 5 +#define NT_AUXV 6 + +#endif diff --git a/usr.bin/file/softmagic.c b/usr.bin/file/softmagic.c index bdcde972f1a..a3e2f109620 100644 --- a/usr.bin/file/softmagic.c +++ b/usr.bin/file/softmagic.c @@ -1,4 +1,5 @@ -/* $OpenBSD: softmagic.c,v 1.2 1996/06/26 05:33:01 deraadt Exp $ */ +/* $OpenBSD: softmagic.c,v 1.3 1997/02/09 23:58:36 millert Exp $ */ + /* * softmagic - interpret variable magic from /etc/magic * @@ -28,21 +29,22 @@ #include <stdio.h> #include <string.h> +#include <stdlib.h> #include <time.h> #include <sys/types.h> #include "file.h" #ifndef lint -static char *moduleid = "$OpenBSD: softmagic.c,v 1.2 1996/06/26 05:33:01 deraadt Exp $"; +static char *moduleid = "$OpenBSD: softmagic.c,v 1.3 1997/02/09 23:58:36 millert Exp $"; #endif /* lint */ static int match __P((unsigned char *, int)); static int mget __P((union VALUETYPE *, unsigned char *, struct magic *, int)); static int mcheck __P((union VALUETYPE *, struct magic *)); -static void mprint __P((union VALUETYPE *, struct magic *)); -static void mdebug __P((long, char *, int)); +static int32 mprint __P((union VALUETYPE *, struct magic *)); +static void mdebug __P((int32, char *, int)); static int mconvert __P((union VALUETYPE *, struct magic *)); /* @@ -98,6 +100,13 @@ int nbytes; int cont_level = 0; int need_separator = 0; union VALUETYPE p; + static int32 *tmpoff = NULL; + static size_t tmplen = 0; + int32 oldoff = 0; + + if (tmpoff == NULL) + if ((tmpoff = (int32 *) malloc(tmplen = 20)) == NULL) + error("out of memory\n"); for (magindex = 0; magindex < nmagic; magindex++) { /* if main entry matches, print it... */ @@ -113,7 +122,7 @@ int nbytes; continue; } - mprint(&p, &magic[magindex]); + tmpoff[cont_level] = mprint(&p, &magic[magindex]); /* * If we printed something, we'll need to print * a blank before we print something else. @@ -121,7 +130,10 @@ int nbytes; if (magic[magindex].desc[0]) need_separator = 1; /* and any continuations that match */ - cont_level++; + if (++cont_level >= tmplen) + if ((tmpoff = (int32 *) realloc(tmpoff, + tmplen += 20)) == NULL) + error("out of memory\n"); while (magic[magindex+1].cont_level != 0 && ++magindex < nmagic) { if (cont_level >= magic[magindex].cont_level) { @@ -132,6 +144,10 @@ int nbytes; */ cont_level = magic[magindex].cont_level; } + if (magic[magindex].flag & ADD) { + oldoff=magic[magindex].offset; + magic[magindex].offset += tmpoff[cont_level-1]; + } if (mget(&p, s, &magic[magindex], nbytes) && mcheck(&p, &magic[magindex])) { /* @@ -149,7 +165,7 @@ int nbytes; (void) putchar(' '); need_separator = 0; } - mprint(&p, &magic[magindex]); + tmpoff[cont_level] = mprint(&p, &magic[magindex]); if (magic[magindex].desc[0]) need_separator = 1; @@ -158,7 +174,14 @@ int nbytes; * at a higher level, * process them. */ - cont_level++; + if (++cont_level >= tmplen) + if ((tmpoff = + (int32 *) realloc(tmpoff, + tmplen += 20)) == NULL) + error("out of memory\n"); + } + if (magic[magindex].flag & ADD) { + magic[magindex].offset = oldoff; } } } @@ -167,13 +190,14 @@ int nbytes; return 0; /* no match at all */ } -static void +static int32 mprint(p, m) union VALUETYPE *p; struct magic *m; { char *pp, *rt; - unsigned long v; + uint32 v; + int32 t=0 ; switch (m->type) { @@ -181,6 +205,7 @@ struct magic *m; v = p->b; v = signextend(m, v) & m->mask; (void) printf(m->desc, (unsigned char) v); + t = m->offset + sizeof(char); break; case SHORT: @@ -189,6 +214,7 @@ struct magic *m; v = p->h; v = signextend(m, v) & m->mask; (void) printf(m->desc, (unsigned short) v); + t = m->offset + sizeof(short); break; case LONG: @@ -196,17 +222,25 @@ struct magic *m; case LELONG: v = p->l; v = signextend(m, v) & m->mask; - (void) printf(m->desc, (unsigned long) v); + (void) printf(m->desc, (uint32) v); + t = m->offset + sizeof(int32); break; case STRING: if (m->reln == '=') { (void) printf(m->desc, m->value.s); + t = m->offset + strlen(m->value.s); } else { + if (*m->value.s == '\0') { + char *cp = strchr(p->s,'\n'); + if (cp) + *cp = '\0'; + } (void) printf(m->desc, p->s); + t = m->offset + strlen(p->s); } - return; + break; case DATE: case BEDATE: @@ -215,11 +249,14 @@ struct magic *m; if ((rt = strchr(pp, '\n')) != NULL) *rt = '\0'; (void) printf(m->desc, pp); - return; + t = m->offset + sizeof(time_t); + break; + default: error("invalid m->type (%d) in mprint().\n", m->type); /*NOTREACHED*/ } + return(t); } /* @@ -230,8 +267,6 @@ mconvert(p, m) union VALUETYPE *p; struct magic *m; { - char *rt; - switch (m->type) { case BYTE: case SHORT: @@ -239,17 +274,21 @@ struct magic *m; case DATE: return 1; case STRING: - /* Null terminate and eat the return */ - p->s[sizeof(p->s) - 1] = '\0'; - if ((rt = strchr(p->s, '\n')) != NULL) - *rt = '\0'; - return 1; + { + char *ptr; + + /* Null terminate and eat the return */ + p->s[sizeof(p->s) - 1] = '\0'; + if ((ptr = strchr(p->s, '\n')) != NULL) + *ptr = '\0'; + return 1; + } case BESHORT: p->h = (short)((p->hs[0]<<8)|(p->hs[1])); return 1; case BELONG: case BEDATE: - p->l = (long) + p->l = (int32) ((p->hl[0]<<24)|(p->hl[1]<<16)|(p->hl[2]<<8)|(p->hl[3])); return 1; case LESHORT: @@ -257,7 +296,7 @@ struct magic *m; return 1; case LELONG: case LEDATE: - p->l = (long) + p->l = (int32) ((p->hl[3]<<24)|(p->hl[2]<<16)|(p->hl[1]<<8)|(p->hl[0])); return 1; default: @@ -269,11 +308,11 @@ struct magic *m; static void mdebug(offset, str, len) -long offset; +int32 offset; char *str; int len; { - (void) fprintf(stderr, "mget @%ld: ", offset); + (void) fprintf(stderr, "mget @%d: ", offset); showstr(stderr, (char *) str, len); (void) fputc('\n', stderr); (void) fputc('\n', stderr); @@ -286,7 +325,7 @@ unsigned char *s; struct magic *m; int nbytes; { - long offset = m->offset; + int32 offset = m->offset; if (offset + sizeof(union VALUETYPE) <= nbytes) memcpy(p, s + offset, sizeof(union VALUETYPE)); @@ -295,7 +334,7 @@ int nbytes; * the usefulness of padding with zeroes eludes me, it * might even cause problems */ - long have = nbytes - offset; + int32 have = nbytes - offset; memset(p, 0, sizeof(union VALUETYPE)); if (have > 0) memcpy(p, s + offset, have); @@ -345,8 +384,8 @@ mcheck(p, m) union VALUETYPE* p; struct magic *m; { - register unsigned long l = m->value.l; - register unsigned long v; + register uint32 l = m->value.l; + register uint32 v; int matched; if ( (m->value.s[0] == 'x') && (m->value.s[1] == '\0') ) { @@ -389,7 +428,7 @@ struct magic *m; register int len = m->vallen; while (--len >= 0) - if ((v = *b++ - *a++) != 0) + if ((v = *b++ - *a++) != '\0') break; } break; @@ -403,21 +442,21 @@ struct magic *m; switch (m->reln) { case 'x': if (debug) - (void) fprintf(stderr, "%lu == *any* = 1\n", v); + (void) fprintf(stderr, "%u == *any* = 1\n", v); matched = 1; break; case '!': matched = v != l; if (debug) - (void) fprintf(stderr, "%lu != %lu = %d\n", + (void) fprintf(stderr, "%u != %u = %d\n", v, l, matched); break; case '=': matched = v == l; if (debug) - (void) fprintf(stderr, "%lu == %lu = %d\n", + (void) fprintf(stderr, "%u == %u = %d\n", v, l, matched); break; @@ -425,13 +464,13 @@ struct magic *m; if (m->flag & UNSIGNED) { matched = v > l; if (debug) - (void) fprintf(stderr, "%lu > %lu = %d\n", + (void) fprintf(stderr, "%u > %u = %d\n", v, l, matched); } else { - matched = (long) v > (long) l; + matched = (int32) v > (int32) l; if (debug) - (void) fprintf(stderr, "%ld > %ld = %d\n", + (void) fprintf(stderr, "%d > %d = %d\n", v, l, matched); } break; @@ -440,13 +479,13 @@ struct magic *m; if (m->flag & UNSIGNED) { matched = v < l; if (debug) - (void) fprintf(stderr, "%lu < %lu = %d\n", + (void) fprintf(stderr, "%u < %u = %d\n", v, l, matched); } else { - matched = (long) v < (long) l; + matched = (int32) v < (int32) l; if (debug) - (void) fprintf(stderr, "%ld < %ld = %d\n", + (void) fprintf(stderr, "%d < %d = %d\n", v, l, matched); } break; @@ -454,14 +493,14 @@ struct magic *m; case '&': matched = (v & l) == l; if (debug) - (void) fprintf(stderr, "((%lx & %lx) == %lx) = %d\n", + (void) fprintf(stderr, "((%x & %x) == %x) = %d\n", v, l, l, matched); break; case '^': matched = (v & l) != l; if (debug) - (void) fprintf(stderr, "((%lx & %lx) != %lx) = %d\n", + (void) fprintf(stderr, "((%x & %x) != %x) = %d\n", v, l, l, matched); break; diff --git a/usr.bin/file/tar.h b/usr.bin/file/tar.h index 346831bde5d..9246a133bd0 100644 --- a/usr.bin/file/tar.h +++ b/usr.bin/file/tar.h @@ -1,4 +1,5 @@ -/* * $OpenBSD: tar.h,v 1.2 1996/06/26 05:33:02 deraadt Exp $ # checkin only*/ +/* $OpenBSD: tar.h,v 1.3 1997/02/09 23:58:37 millert Exp $ */ + /* * Header file for public domain tar (tape archive) program. * diff --git a/usr.bin/fmt/fmt.1 b/usr.bin/fmt/fmt.1 index aacc8f4eb79..3b223ff8842 100644 --- a/usr.bin/fmt/fmt.1 +++ b/usr.bin/fmt/fmt.1 @@ -1,4 +1,4 @@ -.\" $OpenBSD: fmt.1,v 1.2 1996/06/26 05:33:20 deraadt Exp $ +.\" $OpenBSD: fmt.1,v 1.3 1997/02/09 23:58:42 millert Exp $ .\" $NetBSD: fmt.1,v 1.3 1995/09/01 01:29:40 jtc Exp $ .\" .\" Copyright (c) 1980, 1990, 1993 @@ -42,6 +42,7 @@ .Nd simple text formatter .Sh SYNOPSIS .Nm fmt +.Fl c .Oo .Ar goal .Op Ar maximum @@ -61,6 +62,11 @@ to 65 and the maximum to 75. The spacing at the beginning of the input lines is preserved in the output, as are blank lines and interword spacing. .Pp +.Fl c +instructs +.Nm fmt +to center the text. +.Pp .Nm Fmt is meant to format mail messages prior to sending, but may also be useful for other simple tasks. diff --git a/usr.bin/rdist/os-openbsd.h b/usr.bin/rdist/os-openbsd.h index e4023520b56..99862dc546f 100644 --- a/usr.bin/rdist/os-openbsd.h +++ b/usr.bin/rdist/os-openbsd.h @@ -1,4 +1,4 @@ -/* * $OpenBSD: os-openbsd.h,v 1.3 1996/06/26 05:38:15 deraadt Exp $*/ +/* * $OpenBSD: os-openbsd.h,v 1.4 1997/02/09 23:58:44 millert Exp $*/ /* * Copyright (c) 1993 Michael A. Cooper * Copyright (c) 1993 Regents of the University of California. @@ -156,4 +156,4 @@ typedef void POINTER; * Define this only if the pathname is different than * that which appears in "include/paths.h". */ -#define _PATH_REMSH "/usr/bin/rsh" /**/ +#define _PATH_REMSH "/usr/local/bin/ssh" /**/ |