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#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include <string.h>
#include "xex.h"
#ifndef VERSION
#define VERSION "???"
#endif
#define SELF "xexsplit"
#define OPTIONS "hv"
char *usage =
SELF " v" VERSION " by B. Watson (WTFPL)\n"
"Split a multi-segment Atari binary load file into multiple files\n"
"usage: " SELF " -[hv] [infile.xex] [outfile-prefix]\n"
" -h Print this help\n"
" -v Verbose operation\n";
int main(int argc, char **argv) {
xex_segment seg;
char *infile = "-";
FILE *in = stdin;
char outfile[4096];
unsigned char buffer[65536];
FILE *out = NULL;
int count = 1, outlen, c;
strcpy(outfile, "xexsplit");
while( (c = getopt(argc, argv, OPTIONS)) > 0) {
switch(c) {
case 'h':
printf(usage);
exit(0);
break;
case 'v':
xex_verbose = 1;
break;
default:
fprintf(stderr, usage);
exit(1);
}
}
if(argc > optind) {
infile = argv[optind];
optind++;
}
if(argc > optind) {
strcpy(outfile, argv[optind]);
optind++;
if(argc > optind)
fprintf(stderr, SELF ": "
"ignoring extra junk on command line: '%s'.\n", argv[optind]);
} else if(strcmp(infile, "-") != 0) {
strcpy(outfile, infile);
}
if(strcmp(outfile, "-") == 0) {
fprintf(stderr, SELF ": can't write to standard output.\n");
exit(1);
}
outlen = strlen(outfile);
if( strcmp(infile, "-") != 0 && !(in = fopen(infile, "rb")) ) {
fprintf(stderr, SELF ": %s: %s\n", infile, strerror(errno));
exit(1);
}
seg.object = buffer;
while(xex_fread_seg(&seg, in)) {
if(count == 1 && !seg.has_ff_header) {
fprintf(stderr, SELF ": warning: first segment lacks $FFFF header "
"(bad XEX file?)\n");
}
seg.has_ff_header = 1;
sprintf(outfile + outlen,
".%03d.%04X.%04X",
count, seg.start_addr, seg.end_addr);
if( !(out = fopen(outfile, "wb")) ) {
fprintf(stderr, SELF ": %s: %s\n", outfile, strerror(errno));
fclose(in);
exit(1);
}
if(!xex_fwrite_seg(&seg, out))
break;
fclose(out);
out = NULL;
fprintf(stderr, SELF ": Wrote file %s\n", outfile);
count++;
}
fclose(in);
if(out) fclose(out);
if(xex_errno) {
xex_perror(SELF);
return 1;
}
if(count == 1) {
fprintf(stderr, SELF ": input file was empty!\n");
return 1;
}
return 0;
}
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