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/* Copyright (C) 2002-2003 by George Williams */
/*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <time.h>
#include <unistd.h>
#if __Mac
# include <CoreServices.h> /* -I/Developer/Headers/FlatCarbon/ */
#endif
/* A MacBinary file */
/* http://www.lazerware.com/formats/macbinary.html */
/* begins with a 128 byte header */
/* (which specifies lengths for data/resource forks) */
/* (and contains mac type/creator data) */
/* (and other stuff) */
/* (and finally a crc checksum)
/* is followed by the data section (padded to a mult of 128 bytes) */
/* is followed by the resource section (padded to a mult of 128 bytes) */
/* Crc code taken from: */
/* http://www.ctan.org/tex-archive/tools/macutils/crc/ */
/* MacBinary files use the same CRC that binhex does (in the MacBinary header) */
extern unsigned long binhex_crc(unsigned char *buffer,int size);
/* frombin filenames */
static void Usage(char *prog) {
fprintf( stderr, "Usage: %s [-usage] [-help] [-version] filenames\n" );
fprintf( stderr, " -usage\t\tPrints this message\n" );
fprintf( stderr, " -help\t\tPrints this message\n" );
fprintf( stderr, " -version\t\tPrints the version of the program\n" );
fprintf( stderr, "Takes a list of macbinary filenames and extracts the contents\n" );
fprintf( stderr, " on the mac it creates the obvious file.\n" );
fprintf( stderr, " on non-mac systems it will create up to three files for each input file\n");
fprintf( stderr, " *.info contains some mac specific data\n" );
fprintf( stderr, " *.data contains the data fork (if present)\n" );
fprintf( stderr, " *.rsrc contains the resource fork (if present)\n" );
exit( 1 );
}
static void ProcessFile(char *filename) {
FILE *binfile;
unsigned char header[128];
char name[80];
int dlen, rlen;
int i,ch;
binfile = fopen(filename,"r");
if ( binfile==NULL ) {
fprintf( stderr, "Cannot open %s\n", filename);
return;
}
fread(header,1,sizeof(header),binfile);
if ( header[0]!=0 || header[74]!=0 || header[82]!=0 || header[1]<=0 ||
header[1]>33 || header[63]!=0 || header[2+header[1]]!=0 ) {
fprintf( stderr, "%s does not look like a macbinary file\n", filename );
fclose(binfile);
return;
}
strncpy(name,(char *) header+2,header[1]);
name[header[1]] = '\0';
dlen = ((header[0x53]<<24)|(header[0x54]<<16)|(header[0x55]<<8)|header[0x56]);
rlen = ((header[0x57]<<24)|(header[0x58]<<16)|(header[0x59]<<8)|header[0x5a]);
fprintf( stderr, " %s => %s, dfork len=%d rfork len=%d\n", filename, name, dlen, rlen );
#ifndef __Mac
{
FILE *datafile, *resfile, *infofile;
if ( dlen>0 ) {
fseek(binfile,128,SEEK_SET);
strcpy(name+header[1],".data");
datafile = fopen(name,"w");
if ( datafile==NULL )
fprintf( stderr, "Cannot open output file: %s\n", name );
else {
for ( i=0; i<dlen && (ch=getc(binfile))!=EOF; ++i )
putc(ch,datafile);
fclose(datafile);
}
}
if ( rlen>0 ) {
fseek(binfile,128 + ((dlen+127)&~127),SEEK_SET);
strcpy(name+header[1],".rsrc");
resfile = fopen(name,"w");
if ( resfile==NULL )
fprintf( stderr, "Cannot open output file: %s\n", name );
else {
for ( i=0; i<rlen && (ch=getc(binfile))!=EOF; ++i )
putc(ch,resfile);
fclose(resfile);
}
}
strcpy(name+header[1],".info");
infofile = fopen(name,"w");
if ( infofile==NULL ) {
fprintf( stderr, "Cannot open output file: %s\n", name );
} else {
name[header[1]] = '\0';
fprintf( infofile, "Mac filename = %s\n", name );
fprintf( infofile, "Data fork length = %d\n", dlen );
fprintf( infofile, "Resource fork length = %d\n", rlen );
fprintf( infofile, "File Type = %c%c%c%c\n",
header[65], header[66], header[67], header[68]);
fprintf( infofile, "File Creator = %c%c%c%c\n",
header[69], header[70], header[71], header[72]);
fprintf( infofile, "Finder Flags = %08x\n",
header[73]);
fclose( infofile );
}
}
#else /* __Mac */
{
FILE *file;
FSRef ref;
FSSpec spec;
int creator, type;
long len;
short macfile;
unsigned char *buf;
file = fopen( name,"w");
if ( file==NULL )
fprintf(stderr, "Cannot open output file: %s\n", name );
else {
/* First the data fork */
fseek(binfile,128,SEEK_SET);
for ( i=0; i<dlen && (ch=getc(binfile))!=EOF; ++i )
putc(ch,file);
fclose(file);
/* Then the resource fork */
type = (header[65]<<24)|(header[66]<<16)|(header[67]<<8)|header[68];
creator = (header[69]<<24)|(header[70]<<16)|(header[71]<<8)|header[72];
if ( FSPathMakeRef( (unsigned char *) name,&ref,NULL)==noErr &&
FSGetCatalogInfo(&ref,0,NULL,NULL,&spec,NULL)==noErr ) {
FSpCreateResFile(&spec,creator,type,smSystemScript);
if ( FSpOpenRF(&spec,fsWrPerm,&macfile)==noErr ) {
SetEOF(macfile,0); /* Truncate it just in case it existed... */
fseek(binfile,128 + ((dlen+127)&~127),SEEK_SET);
buf = malloc(8*1024);
for ( i=0; i<rlen && (len=fread(buf,1,8*1024,binfile))>0 ; i+= len ) {
if ( i+len>rlen )
len = rlen-i;
FSWrite(macfile,&len,buf);
}
FSClose(macfile);
free(buf);
}
}
}
}
#endif
fclose(binfile);
}
int main( int argc, char **argv) {
int i;
for ( i=1; i<argc; ++i ) {
if ( *argv[i]=='-' ) {
char *pt = argv[i]+1;
if ( *pt=='-' ) ++pt;
if ( strcmp(pt,"usage")==0 || strcmp(pt,"help")==0 )
Usage(argv[0]);
else if ( strcmp(pt,"version")==0 ) {
printf( "frombin v1.0\n" );
exit( 0 );
} else {
fprintf( stderr, "Unrecognized argument %s\n", argv[i]);
Usage(argv[0]);
}
} else {
ProcessFile(argv[i]);
}
}
return( 0 );
}
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