int fsMount(const char *name) {
struct FILESYSTEM_IMAGE *img;
FILESYSTEM_IMG_HEADER header;
int i = 0;
if ((img = malloc(sizeof(struct FILESYSTEM_IMAGE))) == NULL)
return -1;
if ((img->file = fsFileOpen(name, "rb")) == NULL) {
free(img);
return -1;
}
img->offset = 0;
read_header:
fsFileReadInts((unsigned int *) &header, sizeof(header) >> 2, img->file);
if (header.magic != DARNIT_FS_IMG_MAGIC || header.version != DARNIT_FS_IMG_VERSION) {
fsFileSeek(img->file, -4, SEEK_END);
fsFileReadInts((unsigned int *) &i, 1, img->file);
if (i == DARNIT_FS_IMG_MAGIC && !img->offset) {
fsFileSeek(img->file, -8, SEEK_END);
fsFileReadInts((unsigned int *) &i, 1, img->file);
img->offset = fsFileTell(img->file) - i - 4;
if (img->offset <= 0) {
fsFileClose(img->file);
free(img);
return -1;
}
fsFileSeek(img->file, img->offset, SEEK_SET);
goto read_header;
}
fsFileClose(img->file);
free(img);
return -1;
}
img->dir_ents = header.files;
if ((img->dir = malloc(sizeof(FILESYSTEM_IMAGE_FILE) * img->dir_ents)) == NULL) {
fsFileClose(img->file);
free(img);
return -1;
}
for (i = 0; i < img->dir_ents; i++) {
fsFileRead(img->dir[i].name, 128, img->file);
fsFileReadInts(&img->dir[i].pos, 3, img->file);
img->dir[i].comp = utilStringSum(img->dir[i].name);
img->dir[i].pos += (12 + 140 * img->dir_ents) + img->offset;
}
img->next = d->fs.mount;
d->fs.mount = img;
return 0;
}
size_t EXPORT_THIS d_file_read_ints(void *buffer, size_t ints, FILESYSTEM_FILE *file) {
return fsFileReadInts(buffer, ints, file);
}
