int disc_cache_bdrom_file(BD_DISC *p, const char *rel_path, const char *cache_path)
{
BD_FILE_H *fp_in;
BD_FILE_H *fp_out;
int64_t got;
size_t size;
if (!cache_path || !cache_path[0]) {
return -1;
}
/* make sure cache directory exists */
if (file_mkdirs(cache_path) < 0) {
return -1;
}
/* plain directory ? */
size = strlen(rel_path);
if (rel_path[size - 1] == '/' || rel_path[size - 1] == '\\') {
return 0;
}
/* input file from BD-ROM */
fp_in = p->pf_file_open_bdrom(p->fs_handle, rel_path);
if (!fp_in) {
BD_DEBUG(DBG_FILE | DBG_CRIT, "error caching file %s (does not exist ?)\n", rel_path);
return -1;
}
/* output file in local filesystem */
fp_out = file_open(cache_path, "wb");
if (!fp_out) {
BD_DEBUG(DBG_FILE | DBG_CRIT, "error creating cache file %s\n", cache_path);
file_close(fp_in);
return -1;
}
do {
uint8_t buf[16*2048];
got = file_read(fp_in, buf, sizeof(buf));
/* we'll call write(fp, buf, 0) after EOF. It is used to check for errors. */
if (got < 0 || fp_out->write(fp_out, buf, got) != got) {
BD_DEBUG(DBG_FILE | DBG_CRIT, "error caching file %s\n", rel_path);
file_close(fp_out);
file_close(fp_in);
(void)file_unlink(cache_path);
return -1;
}
} while (got > 0);
BD_DEBUG(DBG_FILE, "cached %s to %s\n", rel_path, cache_path);
file_close(fp_out);
file_close(fp_in);
return 0;
}
int
make_link_file (const char *linkpath, uuid_t uuid)
{
char *p;
char uuidbuf[30];
struct stat st;
char upbuf[12], lobuf[12];
uint64_t upper, lower;
upper = arrow_bytes_to_long (uuid);
lower = arrow_bytes_to_long (uuid + 8);
b64_encode (upper, upbuf);
b64_encode (lower, lobuf);
snprintf (uuidbuf, sizeof (uuidbuf), "%02x/%s.%s", uuid[0], upbuf, lobuf);
if (lstat (linkpath, &st) == 0)
{
if ((st.st_mode & S_IFLNK) == 0)
{
errno = EEXIST;
return -1;
}
if (unlink (linkpath) != 0)
return -1;
}
p = strrchr (linkpath, '/');
*p = '\0';
/* fprintf (stderr, "%s: file_mkdirs %s\n", __FUNCTION__, linkpath); */
int ret;
if ((ret = file_mkdirs (linkpath, 0700)) != 0)
{
/* fprintf (stderr, "file_mkdirs: %s (returned %d)\n", strerror (errno), ret); */
return -1;
}
*p = '/';
/* fprintf (stderr, "%s: symlink %s -> %s\n", __FUNCTION__, uuidbuf, linkpath); */
if (symlink (uuidbuf, linkpath) != 0)
return -1;
return 0;
}
int
file_mkdirs (const char *path, int mode)
{
char dir[1024];
char *p;
if (file_isdir (path))
return 0;
if (file_isfile (path))
{
errno = EEXIST;
return -1;
}
file_dirname (path, dir, sizeof (dir));
if (strcmp (dir, ".") != 0)
file_mkdirs (dir, mode);
if (mkdir (path, mode) != 0)
return -1;
return 0;
}
