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/*
cdbdiff is (c) 2001 by Wilhelm Noeker (wnoeker@t-online.de)
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
*/
/*========================================================================*\
| File: cdbdiff.c Date: 22 Mar 2001 |
*------------------------------------------------------------------------*
| Compare two fortune cookie files 'A' and 'B', |
| extracting all cookies which are present in 'B' but not in 'A'. |
| See help() for usage notes. |
| |
\*========================================================================*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include "strstuff.h"
#include "cookio.h"
#include "compress.h"
char version[] = "$VER: cdbdiff 2.5 (22.03.2001)";
#define FBUFSIZE 16384 /* we'll use larger file buffers */
/*
* Print a help text and nag about illegal parameter <s>
*/
static void help( UBYTE *s )
{
if( s )
printf( "illegal option '%s'\n", s );
printf( "usage: cdbdiff [options] <dbase0> <dbase1> <resultfile>\n" );
printf( "where options are:\n" );
printf( " -f[0-3] cookie format: words, lines, %%, %%%% (default: %d)\n", DEF_FMT );
printf( " -d[0-3] how fussy about word delimiters? (default: 2)\n" );
printf( " -c case sensitive comparisons\n" );
printf( " -a if <resultfile> exists, append to it\n" );
}
int main( int argc, char *argv[] )
{
UBYTE *s;
int append = 0;
int case_sense = 0, bordermode = 2;
int fmt = DEF_FMT;
long count1;
UBYTE name1[ 100 ], name2[ 100 ], name3[ 100 ];
UBYTE hooktarget[ 16 ];
FILE *infile, *infile2, *logfile;
name1[ 0 ] = name2[ 0 ] = name3[ 0 ] = '\0';
while( --argc )
{
s = *++argv;
if( *s != '-' )
{
if( name1[ 0 ] == '\0' )
strcpy( name1, s );
else if( name2[ 0 ] == '\0' )
strcpy( name2, s );
else
strcpy( name3, s );
}
else
{
s++;
switch( *s++ )
{
case 'd':
if( isdigit( *s ) )
bordermode = atoi( s );
else
goto bad_parm;
break;
case 'f':
if( isdigit( *s ) )
fmt = atoi( s );
else
goto bad_parm;
break;
case 'c':
case_sense = 1;
break;
case 'a':
append = 1;
break;
default:
goto bad_parm;
}
}
}
/* important, before calling anything from strstuff: */
str_setup( bordermode, case_sense );
if( *name3 == '\0' )
{
help( NULL );
return 5;
}
printf( "CdbDiff " );
print_strstat();
printf( "File format: " );
print_fmtinfo( fmt );
/* Open all three files. */
if( !(infile = fopen( name1, "r" ) ) )
{
printf( "Can't open %s for input!\n", name1 );
return 10;
}
if( !(infile2 = fopen( name2, "r" ) ) )
{
printf( "Can't open %s for input!\n", name2 );
return 10;
}
if( !append && (logfile = fopen( name3, "r" )) )
{
printf( "Error: '%s' exists! Use -a to append.\n", name3 );
return 10;
}
if( !(logfile = fopen( name3, "a" ) ) )
{
printf( "Can't open %s for output!\n", name3 );
return 10;
}
setvbuf( infile, NULL, _IOFBF, FBUFSIZE );
setvbuf( infile2, NULL, _IOFBF, FBUFSIZE );
setvbuf( logfile, NULL, _IOFBF, FBUFSIZE );
/* Read the first cookie file and compress it. */
read_cookies( infile, fmt );
fclose( infile );
one_cookie( DUPDEL_MATCH, SORT_RESTORE, hooktarget, NULL, fmt );
count1 = listed;
/* Add the second file and once more delete any duplicates. */
read_cookies( infile2, fmt );
fclose( infile2 );
one_cookie( DUPDEL_MATCH, SORT_RESTORE, hooktarget, NULL, fmt );
/* Write the remaining cookies, skipping those from the first file. */
write_cookies( logfile, fmt, count1 );
fclose( logfile );
return 0;
bad_parm:
help( argv[ 0 ] );
return 5;
}
|
