| /* |
| jargrep.c - main functions for jargrep utility |
| Copyright (C) 2002, 2003 Free Software Foundation |
| Copyright (C) 1999, 2000 Bryan Burns |
| Copyright (C) 2000 Cory Hollingsworth |
| |
| Parts of this program are base on Bryan Burns work with fastjar |
| Copyright (C) 1999. |
| |
| This program is free software; you can redistribute it and/or |
| modify it under the terms of the GNU General Public License |
| as published by the Free Software Foundation; either version 2 |
| of the License, or (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program; if not, write to the Free Software |
| Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| */ |
| |
| /* Id: jargrep.c,v 1.5 2002/01/03 04:57:56 rodrigc Exp |
| |
| Log: jargrep.c,v |
| Revision 1.5 2002/01/03 04:57:56 rodrigc |
| 2001-01-02 Craig Rodrigues <rodrigc@gcc.gnu.org> |
| |
| PR bootstrap/5117 |
| * configure.in (AC_CHECK_HEADERS): Check for stdlib.h. |
| * Makefile.am: Move grepjar to bin_PROGRAMS. |
| * config.h.in: Regenerated. |
| * Makefile.in: Regenerated. |
| * aclocal.m4: Regenerated. |
| * jargrep.c: Eliminate some signed/unsigned and default |
| uninitialized warnings. Use HAVE_STDLIB_H instead of |
| STDC_HEADERS macro. |
| * jartool.c: Likewise. |
| * compress.c: Likewise. |
| |
| Revision 1.4 2000/12/15 18:45:09 tromey |
| * jargrep.c: Include getopt.h if it exists. |
| (optind): Declare. |
| * configure, config.h: Rebuilt. |
| * configure.in: Check for getopt.h. |
| |
| Revision 1.3 2000/12/14 18:45:35 ghazi |
| Warning fixes: |
| |
| * compress.c: Include stdlib.h and compress.h. |
| (rcsid): Delete. |
| (report_str_error): Make static. |
| (ez_inflate_str): Delete unused variable. Add parens in if-stmt. |
| (hrd_inflate_str): Likewise. |
| |
| * compress.h (init_compression, end_compression, init_inflation, |
| end_inflation): Prototype void arguments. |
| |
| * dostime.c (rcsid): Delete. |
| |
| * jargrep.c: Include ctype.h, stdlib.h, zlib.h and compress.h. |
| Make functions static. Cast ctype function argument to `unsigned |
| char'. Add parens in if-stmts. Constify. |
| (Usage): Change into a macro. |
| (jargrep): Remove unused parameter. |
| |
| * jartool.c: Constify. Add parens in if-stmts. Align |
| signed/unsigned char pointers in functions calls using casts. |
| (rcsid): Delete. |
| (list_jar): Fix printf format specifier. |
| (usage): Chop long string into bits. Reformat. |
| |
| * pushback.c (rcsid): Delete. |
| |
| Revision 1.2 2000/12/11 02:59:55 apbianco |
| 2000-12-10 Robert Lipe <robertlipe@usa.net> |
| |
| * jargrep.c (jargrep): Added null statement after case. |
| |
| 2000-12-10 Alexandre Petit-Bianco <apbianco@cygnus.com> |
| |
| * Makefile: Removed. |
| * Makefile.in: Rebuilt with `-i' and `--enable-foreign'. |
| |
| (http://gcc.gnu.org/ml/gcc/2000-12/msg00294.html) |
| |
| Revision 1.1 2000/12/09 03:08:23 apbianco |
| 2000-12-08 Alexandre Petit-Bianco <apbianco@cygnus.com> |
| |
| * fastjar: Imported. |
| |
| Revision 1.8 2000/09/13 14:02:02 cory |
| Reformatted some of the code to more closly match the layout of the orriginal |
| fastjar utility. |
| |
| Revision 1.7 2000/09/12 22:29:36 cory |
| Jargrep now seems to do what I want it to do. Performs properly on Linux x86, |
| will test some other platforms later. |
| |
| |
| */ |
| |
| #include "config.h" |
| #include <stdio.h> |
| #include <unistd.h> |
| #include <errno.h> |
| #include <string.h> |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| #include <fcntl.h> |
| #include <ctype.h> |
| #ifdef HAVE_STDLIB_H |
| #include <stdlib.h> |
| #endif |
| |
| #include "xregex.h" |
| |
| #include "jargrep.h" |
| #include "jartool.h" |
| #include "pushback.h" |
| #include "zipfile.h" |
| #include "zlib.h" |
| #include "compress.h" |
| #include <getopt.h> |
| |
| void version(void); |
| void help(const char *name); |
| |
| #define Usage "Usage: %s [-bcinsVw] [--version|--help] <-e PATTERN | PATTERN> FILE ...\n" |
| |
| /* |
| Function name: opt_valid |
| arg: options Bitfield flag that contains the command line options of grepjar. |
| purpose: To guard agains the occurance of certain incompatible flags being used |
| together. |
| returns: TRUE if options are valid, FALSE otherwise. |
| */ |
| |
| static int opt_valid(int options) { |
| int retflag; |
| |
| if((options & JG_PRINT_COUNT) && |
| (options & (JG_PRINT_BYTEOFFSET | JG_PRINT_LINE_NUMBER))) |
| { |
| retflag = FALSE; |
| } |
| else retflag = TRUE; |
| |
| return retflag; |
| } |
| |
| /* |
| Function name: create_regexp |
| args: regstr String containing the uncompiled regular expression. This may be the |
| expression as is passed in through argv. |
| options This is the flag containing the commandline options that have been |
| parsed by getopt. |
| purpose: Handle the exception handling involved with setting upt a new regular |
| expression. |
| returns: Newly allocated compile regular expression ready to be used in an regexec call. |
| */ |
| |
| static regex_t *create_regexp(const char *regstr, int options) { |
| regex_t *exp; |
| int errcode; |
| int msgsize; |
| char *errmsg; |
| |
| if((exp = (regex_t *) malloc(sizeof(regex_t)))) |
| { |
| if((errcode = regcomp(exp, regstr, (options & JG_IGNORE_CASE) ? REG_ICASE : 0))) { |
| fprintf(stderr, "regcomp of regex failed,\n"); |
| if((errmsg = (char *) malloc(msgsize = regerror(errcode, exp, NULL, 0) + 1))) { |
| regerror(errcode, exp, errmsg, msgsize); |
| fprintf(stderr, "Error: %s\n", errmsg); |
| free(exp); |
| free(errmsg); |
| exit(1); |
| } |
| else { |
| fprintf(stderr, "Malloc of errmsg failed.\n"); |
| fprintf(stderr, "Error: %s\n", strerror(errno)); |
| free(exp); |
| exit(1); |
| } |
| } |
| } |
| else { |
| fprintf(stderr, "Malloc of regex failed,\n"); |
| fprintf(stderr, "Error: %s\n", strerror(errno)); |
| exit(1); |
| } |
| |
| return exp; |
| } |
| |
| /* |
| Function name: check_sig |
| args: scratch Pointer to array of bytes containing signature. |
| pbf Pointer to push back handle for jar file. |
| purpose: Verify that checksum is correct. |
| returns: 0, 1, or 2. 0 means we are ready to read embedded file information. 1 means |
| we have read beyound the embedded file list and can exit knowing we have read all the |
| relevent information. 2 means we still haven't reached embdedded file list and need to |
| do some more reading. |
| */ |
| static int check_sig(ub1 *scratch, pb_file *pbfp) { |
| ub4 signature; |
| int retflag = 0; |
| |
| signature = UNPACK_UB4(scratch, 0); |
| |
| #ifdef DEBUG |
| printf("signature is %x\n", signature); |
| #endif |
| if(signature == 0x08074b50){ |
| #ifdef DEBUG |
| printf("skipping data descriptor\n"); |
| #endif |
| pb_read(pbfp, scratch, 12); |
| retflag = 2; |
| } else if(signature == 0x02014b50){ |
| #ifdef DEBUG |
| printf("Central header reached.. we're all done!\n"); |
| #endif |
| retflag = 1; |
| }else if(signature != 0x04034b50){ |
| printf("Ick! %#x\n", signature); |
| retflag = 1; |
| } |
| |
| return retflag; |
| } |
| |
| /* |
| Function name: decd_siz |
| args csize Pointer to embedded file's compressed size. |
| usize Pointer to embedded file's uncmpressed size. |
| fnlen Pointer to embedded file's file name length. |
| elfen Pointer to length of extra fields in jar file. |
| flags Pointer to bitmapped flags. |
| method Pointer to indicator of storage method of embedded file. |
| file_header Pointer to string containing the above values to be unbacked. |
| Purpose: Unpack the series of values from file_header. |
| */ |
| |
| static void decd_siz(ub4 *csize, ub4 *usize, ub2 *fnlen, ub2 *eflen, ub2 *flags, ub2 *method, ub1 *file_header) { |
| *csize = UNPACK_UB4(file_header, LOC_CSIZE); |
| #ifdef DEBUG |
| printf("Compressed size is %u\n", *csize); |
| #endif |
| |
| *usize = UNPACK_UB4(file_header, LOC_USIZE); |
| #ifdef DEBUG |
| printf("Uncompressed size is %u\n", *usize); |
| #endif |
| |
| *fnlen = UNPACK_UB2(file_header, LOC_FNLEN); |
| #ifdef DEBUG |
| printf("Filename length is %hu\n", *fnlen); |
| #endif |
| |
| *eflen = UNPACK_UB2(file_header, LOC_EFLEN); |
| #ifdef DEBUG |
| printf("Extra field length is %hu\n", *eflen); |
| #endif |
| |
| *flags = UNPACK_UB2(file_header, LOC_EXTRA); |
| #ifdef DEBUG |
| printf("Flags are %#hx\n", *flags); |
| #endif |
| |
| *method = UNPACK_UB2(file_header, LOC_COMP); |
| #ifdef DEBUG |
| printf("Compression method is %#hx\n", *method); |
| #endif |
| |
| } |
| |
| /* |
| Function name: new_filename |
| args: pbf Pointer to push back file handle. Used for reading input file. |
| len Length of file name to be read. |
| purpose: Read in the embedded file name from jar file. |
| returns: Pointer to newly allocated string containing file name. |
| */ |
| |
| static char *new_filename(pb_file *pbf, ub4 len) { |
| char *filename; |
| |
| if(!(filename = (char *) malloc(len + 1))) { |
| fprintf(stderr, "Malloc failed of filename\n"); |
| fprintf(stderr, "Error: %s\n", strerror(errno)); |
| } |
| pb_read(pbf, filename, len); |
| filename[len] = '\0'; |
| |
| #ifdef DEBUG |
| printf("filename is %s\n", filename); |
| #endif |
| |
| return filename; |
| } |
| |
| /* |
| Funtion name: read_string |
| args: pbf Pointer to push back file handle. Used for reading input file. |
| size Size of embedded file in bytes. |
| purpose: Create a string containing the contents of the embedded noncompressed file. |
| returns: Pointer to newly allocated string containing embedded file contents. |
| */ |
| |
| static char *read_string(pb_file *pbf, int size) { |
| char *page; |
| |
| if((page = (char *) malloc(size + 1))) { |
| pb_read(pbf, page, size); |
| page[size] = '\0'; |
| } |
| else { |
| fprintf(stderr, "Malloc of page buffer failed.\n"); |
| fprintf(stderr, "Error: %s\n", strerror(errno)); |
| exit(1); |
| } |
| |
| return page; |
| } |
| |
| /* |
| Function name: extract_line |
| args: stream String containing the full contents of a file which is to be substringed |
| in order to provide line representing our grep output. |
| begin Index into stream which regular expression first matches. |
| end Index into stream which end of match to the regular expression. |
| b Pointer to the index of what will be the beginning of the line when |
| string is returned. Used for -b option. |
| purpose: Create a string that can be printed by jargrep from the long string stream. |
| The matching line that is printed out by jargrep is generated by this function. |
| returns: Pointer to newly allocated string containing matched expression. |
| */ |
| |
| static char *extract_line(const char *stream, regoff_t begin, regoff_t end, int *b) { |
| int e; |
| int length; |
| char *retstr; |
| |
| for(*b = begin; *b >= 0 && !iscntrl((unsigned char)stream[*b]); (*b)--); |
| (*b)++; |
| for(e = end; stream[e] == '\t' || !iscntrl((unsigned char)stream[e]); e++); |
| length = e - *b; |
| if((retstr = (char *) malloc(length + 1))) { |
| sprintf(retstr, "%d:", *b); |
| strncpy(retstr, &(stream[*b]), length); |
| retstr[length] = '\0'; |
| } |
| else { |
| fprintf(stderr, "Malloc failed of output string.\n"); |
| fprintf(stderr, "Error: %s\n", strerror(errno)); |
| exit(1); |
| } |
| |
| return retstr; |
| } |
| |
| /* |
| Function name: chk_wrd |
| args: exp Pointer to compiled POSIX style regular expression of search target. |
| str String known to contain at least one match of exp. |
| purpose: Verify that the occurance of the regular expression in str occurs as a whole |
| word and not a substring of another word. |
| returns: TRUE if it is a word, FALSE of it is a substring. |
| */ |
| |
| static int chk_wrd(regex_t *exp, const char *str) { |
| int wrd_fnd = FALSE; |
| int frnt_ok; |
| int bck_ok; |
| const char *str2; |
| regmatch_t match; |
| |
| str2 = str; |
| frnt_ok = bck_ok = FALSE; |
| while(!wrd_fnd && !regexec(exp, str2, 1, &match, 0)) { |
| if(!match.rm_so && (str2 == str)) frnt_ok = TRUE; |
| else if(!isalnum((unsigned char)str2[match.rm_so - 1]) |
| && str2[match.rm_so - 1] != '_') |
| frnt_ok = TRUE; |
| else frnt_ok = FALSE; |
| if(frnt_ok) { |
| if(str2[match.rm_eo] == '\0') bck_ok = TRUE; |
| else if(!isalnum((unsigned char)str2[match.rm_eo]) |
| && str2[match.rm_eo] != '_') |
| bck_ok = TRUE; |
| else bck_ok = FALSE; |
| } |
| wrd_fnd = frnt_ok && bck_ok; |
| str2 = &(str2[match.rm_eo]); |
| } |
| |
| return wrd_fnd; |
| } |
| |
| /* |
| Function name: prnt_mtchs |
| args: exp Pointer to compiled POSIX style regular expression of search target. |
| filename String containing the name of the embedded file which matches have |
| been found in. |
| stream String containing the processed contents of the embedded jar file |
| represended with filename. |
| pmatch Array of regmatch_t matches into stream. |
| nl_offset Array of offsets of '\n' characters in stream. May be NULL if -n is |
| not set on command line. |
| num Number of matches in pmatch array. |
| lines Number of lines in file. Not set if -n is not set on command line. |
| options Bitwise flag containing flags set to represent the command line |
| options. |
| purpose: Control output of jargrep. Output is controlled by which options have been |
| set at the command line. |
| */ |
| |
| static void prnt_mtchs(regex_t *exp, const char *filename, const char *stream, regmatch_t *pmatch, regmatch_t *nl_offset, int num, int lines, int options) { |
| int i; |
| int j = 0; |
| int ln_cnt; |
| int begin; |
| int o_begin; |
| char *str; |
| |
| o_begin = -1; |
| ln_cnt = 0; |
| for(i = 0; i < num; i++) { |
| str = extract_line(stream, pmatch[i].rm_so, pmatch[i].rm_eo, &begin); |
| if(begin > o_begin) { |
| if(!(options & JG_WORD_EXPRESSIONS) || chk_wrd(exp, str)) { |
| ln_cnt++; |
| if(!(options & JG_PRINT_COUNT)) { |
| printf("%s:", filename); |
| if(options & JG_PRINT_LINE_NUMBER) { |
| for(; j < lines && nl_offset[j].rm_so < begin; j++); |
| printf("%d:", j + 1); |
| } |
| if(options & JG_PRINT_BYTEOFFSET) printf("%d:", begin); |
| printf("%s\n", str); |
| } |
| } |
| } |
| o_begin = begin; |
| free(str); |
| } |
| if(options & JG_PRINT_COUNT) printf("%s:%d\n", filename, ln_cnt); |
| } |
| |
| /* |
| Function name: check_crc |
| args: pbf Pointer to pushback file pointer for jar file. |
| stream String containing the non modified contents fo the extraced file entry. |
| usize Size of file in bytes. |
| purpose: Verify the CRC matches that as what is stored in the jar file. |
| */ |
| |
| static void check_crc(pb_file *pbf, const char *stream, ub4 usize) { |
| ub4 crc=0; |
| ub4 lcrc; |
| ub1 scratch[16]; |
| |
| crc = crc32(crc, NULL, 0); |
| crc = crc32(crc, (const unsigned char *)stream, usize); |
| if(pb_read(pbf, scratch, 16) != 16) { |
| perror("read"); |
| exit(1); |
| } |
| if(UNPACK_UB4(scratch, 0) != 0x08074b50) { |
| fprintf(stderr, "Error! Missing data descriptor!\n"); |
| exit(1); |
| } |
| lcrc = UNPACK_UB4(scratch, 4); |
| if(crc != lcrc){ |
| fprintf(stderr, "Error! CRCs do not match! Got %x, expected %x\n", |
| crc, lcrc); |
| exit(1); |
| } |
| } |
| |
| /* |
| Function name mk_ascii |
| args: stream String that contains the contents of the extraced file entry. |
| usize String size. |
| purpose: Make certain that the contents of the file are ASCII, not binary. This |
| permits grepping of binary files as well by converting non ASCII and control characters |
| into '\n'. |
| */ |
| |
| static void mk_ascii(char *stream, size_t usize) { |
| size_t i; |
| |
| for(i = 0; i < usize; i++) |
| if(stream[i] != '\t' |
| && (iscntrl((unsigned char)stream[i]) |
| || (unsigned char) stream[i] >= 128)) |
| stream[i] = '\n'; |
| } |
| |
| /* |
| Funtion name: fnd_match |
| args: exp Pointer to compiled POSIX style regular expression of search target. |
| str_stream String that contains the contents of the extracted file entry. |
| i Pointer to counter and index of matches. |
| purpose: Search str_stream for occurances of the regular expression exp and create |
| an array of matches. |
| returns: Pointer to newly allocated array of regmatch_t which gives indexes to start |
| and end of matches. NULL is returned upon no matches found. |
| */ |
| |
| static regmatch_t *fnd_match(regex_t *exp, const char *str_stream, int *i) { |
| int regflag; |
| regmatch_t match; |
| regmatch_t *match_array; |
| regmatch_t *tmp; |
| |
| match_array = NULL; |
| for(*i = 0, regflag = regexec(exp, str_stream, 1, &match, 0); !regflag; |
| regflag = regexec(exp, &(str_stream[match.rm_eo]), 1, &match, 0), (*i)++) |
| { |
| if((tmp = (regmatch_t *) |
| realloc(match_array, sizeof(regmatch_t) * ((*i) + 1)))) |
| { |
| match_array = tmp; |
| if(*i) { |
| match.rm_so += match_array[(*i) - 1].rm_eo; |
| match.rm_eo += match_array[(*i) - 1].rm_eo; |
| } |
| match_array[*i] = match; |
| } |
| else { |
| fprintf(stderr, "Realloc of match_array failed.\n"); |
| fprintf(stderr, "Error: %s\n", strerror(errno)); |
| exit(1); |
| } |
| } |
| |
| return match_array; |
| } |
| |
| /* |
| Function name: cont_grep |
| args: exp Pointer to compiled POSIX style regular expression of search target. |
| nl_exp Pointer to compiled POSIX style regular expression of newlines. This |
| argument is NULL unless the -n option is used on the command line. |
| fd File descriptor of the jar file being grepped. |
| pbf Pointer to pushback file style file stream. This is for use with |
| the pushback.c file io funtions. |
| options Bitwise flag containing flags set to represent the command line options. |
| purpose: This function handles single entries in an open jar file. The header is |
| read and then the embeded file is extracted and grepped. |
| returns: FALSE upon failure, TRUE otherwise. |
| */ |
| |
| static int cont_grep(regex_t *exp, regex_t *nl_exp, int fd, pb_file *pbf, int options) { |
| int retflag = TRUE; |
| int i; |
| int j; |
| ub4 csize; |
| ub4 usize; |
| ub2 fnlen; |
| ub2 eflen; |
| ub2 flags; |
| ub2 method; |
| ub1 file_header[30]; |
| char *filename; |
| char *str_stream; |
| regmatch_t *match_array; |
| regmatch_t *nl_offsets=0; |
| |
| if(pb_read(pbf, (file_header + 4), 26) != 26) { |
| perror("read"); |
| retflag = FALSE; |
| } |
| else { |
| decd_siz(&csize, &usize, &fnlen, &eflen, &flags, &method, file_header); |
| filename = new_filename(pbf, fnlen); |
| lseek(fd, eflen, SEEK_CUR); |
| if(filename[fnlen - 1] != '/') { |
| str_stream = (method == 8 || (flags & 0x0008)) ? |
| (char *) inflate_string(pbf, &csize, &usize) : |
| read_string(pbf, csize); |
| if(flags & 0x008) check_crc(pbf, str_stream, usize); |
| mk_ascii(str_stream, usize); |
| match_array = fnd_match(exp, str_stream, &i); |
| if((options & JG_PRINT_LINE_NUMBER) && i) |
| nl_offsets = fnd_match(nl_exp, str_stream, &j); |
| prnt_mtchs(exp, filename, str_stream, match_array, nl_offsets, i, j, options); |
| if(match_array) free(match_array); |
| free(str_stream); |
| } |
| free(filename); |
| retflag = TRUE; |
| } |
| |
| return retflag; |
| } |
| |
| /* |
| Funtion name: jargrep |
| args: exp Pointer to compiled POSIX style regular expression of search target. |
| nl_exp Pointer to compiled regular expression for newlines or NULL. Only set |
| if -n option is present at command line. |
| jarfile Filename of jar file to be searched. |
| options Bitwise flag containing flags set to represent the command line options. |
| purpose: Open jar file. Check signatures. When right signature is found go to deeper |
| grep routine. |
| */ |
| |
| static void jargrep(regex_t *exp, regex_t *nl_exp, const char *jarfile, int options){ |
| int fd; |
| int floop = TRUE; |
| pb_file pbf; |
| ub1 scratch[16]; |
| |
| if((fd = open(jarfile, O_RDONLY)) == -1) { |
| if(!(options & JG_SUPRESS_ERROR)) |
| fprintf(stderr, "Error reading file '%s': %s\n", jarfile, strerror(errno)); |
| } |
| else { |
| pb_init(&pbf, fd); |
| |
| do { |
| if(pb_read(&pbf, scratch, 4) != 4) { |
| perror("read"); |
| floop = FALSE; |
| } |
| else { |
| switch (check_sig(scratch, &pbf)) { |
| case 0: |
| floop = cont_grep(exp, nl_exp, fd, &pbf, options); |
| break; |
| case 1: |
| floop = FALSE; |
| break; |
| case 2: |
| /* fall through continue */ |
| ; |
| } |
| } |
| } while(floop); |
| } |
| } |
| |
| /* This is used to mark options with no short value. */ |
| #define LONG_OPT(Num) ((Num) + 128) |
| |
| #define OPT_HELP LONG_OPT (0) |
| |
| static const struct option option_vec[] = |
| { |
| { "help", no_argument, NULL, OPT_HELP }, |
| { "version", no_argument, NULL, 'V' }, |
| { NULL, no_argument, NULL, 0 } |
| }; |
| |
| /* |
| Funtion Name: main |
| args: argc number of in coming args. |
| argv array of strings. |
| purpose: Entry point of the program. Parse command line arguments and set options. |
| Set up regular expressions. Call grep routines for each file as input. |
| returns: 1 on error 0 on success. |
| */ |
| |
| int main(int argc, char **argv) { |
| int c; |
| int retval = 0; |
| int fileindex; |
| int options = 0; |
| regex_t *regexp; |
| regex_t *nl_exp = NULL; |
| char *regexpstr = NULL; |
| |
| while((c = getopt_long(argc, argv, "bce:insVw", |
| option_vec, NULL)) != -1) { |
| switch(c) { |
| case 'b': |
| options |= JG_PRINT_BYTEOFFSET; |
| break; |
| case 'c': |
| options |= JG_PRINT_COUNT; |
| break; |
| case 'e': |
| if(!(regexpstr = (char *) malloc(strlen(optarg) + 1))) { |
| fprintf(stderr, "Malloc failure.\n"); |
| fprintf(stderr, "Error: %s\n", strerror(errno)); |
| exit(1); |
| } |
| strcpy(regexpstr, optarg); |
| break; |
| case 'i': |
| options |= JG_IGNORE_CASE; |
| break; |
| case 'n': |
| options |= JG_PRINT_LINE_NUMBER; |
| break; |
| case 's': |
| options |= JG_SUPRESS_ERROR; |
| break; |
| case 'v': |
| options |= JG_INVERT; |
| break; |
| case 'V': |
| version (); |
| break; |
| case 'w': |
| options |= JG_WORD_EXPRESSIONS; |
| break; |
| case OPT_HELP: |
| help(argv[0]); |
| break; |
| default: |
| fprintf(stderr, Usage, argv[0]); |
| exit(1); |
| } |
| } |
| if(!regexpstr){ |
| if(((argc - optind) >= 2)) { |
| regexpstr = argv[optind]; |
| fileindex = optind + 1; |
| } |
| else { |
| fprintf(stderr, "Invalid arguments.\n"); |
| fprintf(stderr, Usage, argv[0]); |
| exit(1); |
| } |
| } |
| else if((argc - optind) == 1) { |
| fileindex = optind; |
| } |
| else { |
| fprintf(stderr, "Invalid arguments.\n"); |
| fprintf(stderr, Usage, argv[0]); |
| exit(1); |
| } |
| |
| if(opt_valid(options)) { |
| regexp = create_regexp(regexpstr, options); |
| if(options & JG_PRINT_LINE_NUMBER) nl_exp = create_regexp("\n", 0); |
| init_inflation(); |
| for(; fileindex < argc; fileindex++) |
| jargrep(regexp, nl_exp, argv[fileindex], options); |
| regfree(regexp); |
| if(options & JG_PRINT_LINE_NUMBER) regfree(nl_exp); |
| } |
| else { |
| retval = 1; |
| fprintf(stderr, "Error: Invalid combination of options.\n"); |
| } |
| |
| return retval; |
| } |
| |
| void help(const char *filename) |
| { |
| printf (Usage, filename); |
| printf ("\ |
| \n\ |
| Search files in a jar file for a pattern.\n\ |
| \n\ |
| -b print byte offset of match\n\ |
| -c print number of matches\n\ |
| -i compare case-insensitively\n\ |
| -n print line number of each match\n\ |
| -s suppress error messages\n\ |
| -w force PATTERN to match only whole words\n\ |
| -e PATTERN use PATTERN as regular expression\n\ |
| -V|--version print version number and exit\n\ |
| --help print help\n\ |
| "); |
| |
| exit (0); |
| } |
| |
| void version () |
| { |
| printf("grepjar (%s) %s\n\n", PACKAGE, VERSION); |
| printf("Copyright 1999, 2000, 2001 Bryan Burns\n"); |
| printf("Copyright 2000 Cory Hollingsworth\n"); |
| printf("Copyright 2002 Free Software Foundation\n"); |
| printf("\ |
| This is free software; see the source for copying conditions. There is NO\n\ |
| warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n"); |
| exit (0); |
| } |