Macintosh-Tools/mfsreader
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Fix reading of directories (read all blocks, reset offset at each block)

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This commit is contained in:
Your Name 2020-06-28 00:44:50 +02:00
parent 5d6bd1968c
commit c57a26da00
1 changed files with 24 additions and 21 deletions
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45
readmfs.c
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@ -79,7 +79,7 @@ void readdir(uint8_t *im, uint16_t nFirstAllocBlk, uint16_t firstBlock, uint16_t
pos = firstBlock * BLOCKSIZE;
while (n < nFiles) {
while (n < nBlocks) {
d = (mfs_dir_entry *)(im + pos);
memcpy(fn, &(d->flName), d->flNam);
@ -95,32 +95,35 @@ void readdir(uint8_t *im, uint16_t nFirstAllocBlk, uint16_t firstBlock, uint16_t
pos = pos + 51 + ((d->flNam % 2) ? d->flNam : d->flNam+1);
// write data and resource forks
snprintf(exfn, 256+5, "%s.DATA", fn);
fd = open(exfn, O_CREAT|O_WRONLY, 0666);
if (fd < 0) {
fprintf(stderr, "open(%s) failed\n", exfn);
exit(1);
// write file only if entry is used
if (d->flFlags & 0x80) {
// write data and resource forks
snprintf(exfn, 256+5, "%s.DATA", fn);
fd = open(exfn, O_CREAT|O_WRONLY, 0666);
if (fd < 0) {
fprintf(stderr, "open(%s) failed\n", exfn);
exit(1);
}
writeFile(im, fd, nFirstAllocBlk, b2l16(d->flStBlk), b2l32(d->flLgLen));
close(fd);
snprintf(exfn, 256+5, "%s.RSRC", fn);
fd = open(exfn, O_CREAT|O_WRONLY, 0666);
if (fd < 0) {
fprintf(stderr, "open(%s) failed\n", exfn);
exit(1);
}
writeFile(im, fd, nFirstAllocBlk, b2l16(d->flRStBlk), b2l32(d->flRLgLen));
close(fd);
}
writeFile(im, fd, nFirstAllocBlk, b2l16(d->flStBlk), b2l32(d->flLgLen));
close(fd);
snprintf(exfn, 256+5, "%s.RSRC", fn);
fd = open(exfn, O_CREAT|O_WRONLY, 0666);
if (fd < 0) {
fprintf(stderr, "open(%s) failed\n", exfn);
exit(1);
}
writeFile(im, fd, nFirstAllocBlk, b2l16(d->flRStBlk), b2l32(d->flRLgLen));
close(fd);
if (pos % BLOCKSIZE > BLOCKSIZE - 51) {
printf("Skipping to next block\n");
pos = (pos + BLOCKSIZE) / BLOCKSIZE * BLOCKSIZE;
n++;
}
n++;
}
}