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Added support for the FM Recorder header

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@3029 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Björn Stenberg 2002-12-19 15:00:16 +00:00
parent 0b9fbda7eb
commit 5ff920e205
1 changed files with 16 additions and 7 deletions
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23
tools/descramble.c
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@ -24,22 +24,31 @@ int main (int argc, char** argv)
{
unsigned long length,i,slen;
unsigned char *inbuf,*outbuf;
unsigned char *iname = argv[1];
unsigned char *oname = argv[2];
int headerlen = 6;
FILE* file;
if (argc < 3) {
printf("usage: %s <input file> <output file>\n",argv[0]);
printf("usage: %s [-fm] <input file> <output file>\n",argv[0]);
return -1;
}
if (argv[1][0] == '-') { /* assume any parameter is -fm :-) */
headerlen = 24;
iname = argv[2];
oname = argv[3];
}
/* open file and check size */
file = fopen(argv[1],"rb");
file = fopen(iname,"rb");
if (!file) {
perror(argv[1]);
perror(oname);
return -1;
}
fseek(file,0,SEEK_END);
length = ftell(file) - 6; /* skip 6-byte header */
fseek(file,6,SEEK_SET);
length = ftell(file) - headerlen; /* skip header */
fseek(file,headerlen,SEEK_SET);
inbuf = malloc(length);
outbuf = malloc(length);
if ( !inbuf || !outbuf ) {
@ -50,7 +59,7 @@ int main (int argc, char** argv)
/* read file */
i=fread(inbuf,1,length,file);
if ( !i ) {
perror(argv[1]);
perror(iname);
return -1;
}
fclose(file);
@ -65,7 +74,7 @@ int main (int argc, char** argv)
}
/* write file */
file = fopen(argv[2],"wb");
file = fopen(oname,"wb");
if ( !file ) {
perror(argv[2]);
return -1;