| 1 | /*
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| 2 | jargrep.c - main functions for jargrep utility
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| 3 | Copyright (C) 2002, 2003 Free Software Foundation
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| 4 | Copyright (C) 1999, 2000 Bryan Burns
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| 5 | Copyright (C) 2000 Cory Hollingsworth
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| 6 |
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| 7 | Parts of this program are base on Bryan Burns work with fastjar
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| 8 | Copyright (C) 1999.
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| 9 |
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| 10 | This program is free software; you can redistribute it and/or
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| 11 | modify it under the terms of the GNU General Public License
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| 12 | as published by the Free Software Foundation; either version 2
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| 13 | of the License, or (at your option) any later version.
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| 14 |
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| 15 | This program is distributed in the hope that it will be useful,
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| 16 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 18 | GNU General Public License for more details.
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| 19 |
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| 20 | You should have received a copy of the GNU General Public License
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| 21 | along with this program; if not, write to the Free Software
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| 22 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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| 23 | */
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| 24 |
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| 25 | /* Id: jargrep.c,v 1.5 2002/01/03 04:57:56 rodrigc Exp
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| 26 |
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| 27 | Log: jargrep.c,v
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| 28 | Revision 1.5 2002/01/03 04:57:56 rodrigc
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| 29 | 2001-01-02 Craig Rodrigues <[email protected]>
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| 30 |
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| 31 | PR bootstrap/5117
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| 32 | * configure.in (AC_CHECK_HEADERS): Check for stdlib.h.
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| 33 | * Makefile.am: Move grepjar to bin_PROGRAMS.
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| 34 | * config.h.in: Regenerated.
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| 35 | * Makefile.in: Regenerated.
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| 36 | * aclocal.m4: Regenerated.
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| 37 | * jargrep.c: Eliminate some signed/unsigned and default
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| 38 | uninitialized warnings. Use HAVE_STDLIB_H instead of
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| 39 | STDC_HEADERS macro.
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| 40 | * jartool.c: Likewise.
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| 41 | * compress.c: Likewise.
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| 42 |
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| 43 | Revision 1.4 2000/12/15 18:45:09 tromey
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| 44 | * jargrep.c: Include getopt.h if it exists.
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| 45 | (optind): Declare.
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| 46 | * configure, config.h: Rebuilt.
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| 47 | * configure.in: Check for getopt.h.
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| 48 |
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| 49 | Revision 1.3 2000/12/14 18:45:35 ghazi
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| 50 | Warning fixes:
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| 51 |
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| 52 | * compress.c: Include stdlib.h and compress.h.
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| 53 | (rcsid): Delete.
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| 54 | (report_str_error): Make static.
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| 55 | (ez_inflate_str): Delete unused variable. Add parens in if-stmt.
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| 56 | (hrd_inflate_str): Likewise.
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| 57 |
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| 58 | * compress.h (init_compression, end_compression, init_inflation,
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| 59 | end_inflation): Prototype void arguments.
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| 60 |
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| 61 | * dostime.c (rcsid): Delete.
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| 62 |
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| 63 | * jargrep.c: Include ctype.h, stdlib.h, zlib.h and compress.h.
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| 64 | Make functions static. Cast ctype function argument to `unsigned
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| 65 | char'. Add parens in if-stmts. Constify.
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| 66 | (Usage): Change into a macro.
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| 67 | (jargrep): Remove unused parameter.
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| 68 |
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| 69 | * jartool.c: Constify. Add parens in if-stmts. Align
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| 70 | signed/unsigned char pointers in functions calls using casts.
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| 71 | (rcsid): Delete.
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| 72 | (list_jar): Fix printf format specifier.
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| 73 | (usage): Chop long string into bits. Reformat.
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| 74 |
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| 75 | * pushback.c (rcsid): Delete.
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| 76 |
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| 77 | Revision 1.2 2000/12/11 02:59:55 apbianco
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| 78 | 2000-12-10 Robert Lipe <[email protected]>
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| 79 |
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| 80 | * jargrep.c (jargrep): Added null statement after case.
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| 81 |
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| 82 | 2000-12-10 Alexandre Petit-Bianco <[email protected]>
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| 83 |
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| 84 | * Makefile: Removed.
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| 85 | * Makefile.in: Rebuilt with `-i' and `--enable-foreign'.
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| 86 |
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| 87 | (http://gcc.gnu.org/ml/gcc/2000-12/msg00294.html)
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| 88 |
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| 89 | Revision 1.1 2000/12/09 03:08:23 apbianco
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| 90 | 2000-12-08 Alexandre Petit-Bianco <[email protected]>
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| 91 |
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| 92 | * fastjar: Imported.
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| 93 |
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| 94 | Revision 1.8 2000/09/13 14:02:02 cory
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| 95 | Reformatted some of the code to more closly match the layout of the orriginal
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| 96 | fastjar utility.
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| 97 |
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| 98 | Revision 1.7 2000/09/12 22:29:36 cory
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| 99 | Jargrep now seems to do what I want it to do. Performs properly on Linux x86,
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| 100 | will test some other platforms later.
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| 101 |
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| 102 |
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| 103 | */
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| 104 |
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| 105 | #include "config.h"
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| 106 | #include <stdio.h>
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| 107 | #include <unistd.h>
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| 108 | #include <errno.h>
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| 109 | #include <string.h>
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| 110 | #include <sys/types.h>
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| 111 | #include <sys/stat.h>
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| 112 | #include <fcntl.h>
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| 113 | #include <ctype.h>
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| 114 | #ifdef HAVE_STDLIB_H
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| 115 | #include <stdlib.h>
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| 116 | #endif
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| 117 |
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| 118 | #include "xregex.h"
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| 119 |
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| 120 | #include "jargrep.h"
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| 121 | #include "jartool.h"
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| 122 | #include "pushback.h"
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| 123 | #include "zipfile.h"
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| 124 | #include "zlib.h"
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| 125 | #include "compress.h"
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| 126 | #include <getopt.h>
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| 127 |
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| 128 | void version(void);
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| 129 | void help(const char *name);
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| 130 |
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| 131 | #define Usage "Usage: %s [-bcinsVw] [--version|--help] <-e PATTERN | PATTERN> FILE ...\n"
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| 132 |
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| 133 | /*
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| 134 | Function name: opt_valid
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| 135 | arg: options Bitfield flag that contains the command line options of grepjar.
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| 136 | purpose: To guard agains the occurance of certain incompatible flags being used
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| 137 | together.
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| 138 | returns: TRUE if options are valid, FALSE otherwise.
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| 139 | */
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| 140 |
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| 141 | static int opt_valid(int options) {
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| 142 | int retflag;
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| 143 |
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| 144 | if((options & JG_PRINT_COUNT) &&
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| 145 | (options & (JG_PRINT_BYTEOFFSET | JG_PRINT_LINE_NUMBER)))
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| 146 | {
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| 147 | retflag = FALSE;
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| 148 | }
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| 149 | else retflag = TRUE;
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| 150 |
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| 151 | return retflag;
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| 152 | }
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| 153 |
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| 154 | /*
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| 155 | Function name: create_regexp
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| 156 | args: regstr String containing the uncompiled regular expression. This may be the
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| 157 | expression as is passed in through argv.
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| 158 | options This is the flag containing the commandline options that have been
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| 159 | parsed by getopt.
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| 160 | purpose: Handle the exception handling involved with setting upt a new regular
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| 161 | expression.
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| 162 | returns: Newly allocated compile regular expression ready to be used in an regexec call.
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| 163 | */
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| 164 |
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| 165 | static regex_t *create_regexp(const char *regstr, int options) {
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| 166 | regex_t *exp;
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| 167 | int errcode;
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| 168 | int msgsize;
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| 169 | char *errmsg;
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| 170 |
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| 171 | if((exp = (regex_t *) malloc(sizeof(regex_t))))
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| 172 | {
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| 173 | if((errcode = regcomp(exp, regstr, (options & JG_IGNORE_CASE) ? REG_ICASE : 0))) {
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| 174 | fprintf(stderr, "regcomp of regex failed,\n");
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| 175 | if((errmsg = (char *) malloc(msgsize = regerror(errcode, exp, NULL, 0) + 1))) {
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| 176 | regerror(errcode, exp, errmsg, msgsize);
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| 177 | fprintf(stderr, "Error: %s\n", errmsg);
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| 178 | free(exp);
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| 179 | free(errmsg);
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| 180 | exit(1);
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| 181 | }
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| 182 | else {
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| 183 | fprintf(stderr, "Malloc of errmsg failed.\n");
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| 184 | fprintf(stderr, "Error: %s\n", strerror(errno));
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| 185 | free(exp);
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| 186 | exit(1);
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| 187 | }
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| 188 | }
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| 189 | }
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| 190 | else {
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| 191 | fprintf(stderr, "Malloc of regex failed,\n");
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| 192 | fprintf(stderr, "Error: %s\n", strerror(errno));
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| 193 | exit(1);
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| 194 | }
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| 195 |
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| 196 | return exp;
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| 197 | }
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| 198 |
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| 199 | /*
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| 200 | Function name: check_sig
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| 201 | args: scratch Pointer to array of bytes containing signature.
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| 202 | pbf Pointer to push back handle for jar file.
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| 203 | purpose: Verify that checksum is correct.
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| 204 | returns: 0, 1, or 2. 0 means we are ready to read embedded file information. 1 means
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| 205 | we have read beyound the embedded file list and can exit knowing we have read all the
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| 206 | relevent information. 2 means we still haven't reached embdedded file list and need to
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| 207 | do some more reading.
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| 208 | */
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| 209 | static int check_sig(ub1 *scratch, pb_file *pbfp) {
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| 210 | ub4 signature;
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| 211 | int retflag = 0;
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| 212 |
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| 213 | signature = UNPACK_UB4(scratch, 0);
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| 214 |
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| 215 | #ifdef DEBUG
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| 216 | printf("signature is %x\n", signature);
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| 217 | #endif
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| 218 | if(signature == 0x08074b50){
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| 219 | #ifdef DEBUG
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| 220 | printf("skipping data descriptor\n");
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| 221 | #endif
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| 222 | pb_read(pbfp, scratch, 12);
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| 223 | retflag = 2;
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