// we can only get md5 of an object containing 1 range
// XXX: move code to separate thread
gboolean cache_mng_get_md5 (CacheMng *cmng, fuse_ino_t ino, gchar **md5str)
{
struct _CacheEntry *entry;
unsigned char digest[MD5_DIGEST_LENGTH];
MD5_CTX md5ctx;
ssize_t bytes;
unsigned char data[1024];
char path[PATH_MAX];
size_t i;
gchar *out;
FILE *in;
entry = g_hash_table_lookup (cmng->h_entries, GUINT_TO_POINTER (ino));
if (!entry)
return FALSE;
if (range_count (entry->avail_range) != 1) {
LOG_debug (CMNG_LOG, INO_H"Entry contains more than 1 range, can't take MD5 sum of such object !", INO_T (ino));
return FALSE;
}
cache_mng_file_name (cmng, path, sizeof (path), ino);
in = fopen (path, "rb");
if (in == NULL) {
LOG_debug (CMNG_LOG, INO_H"Can't open file for reading: %s", INO_T (ino), path);
return FALSE;
}
MD5_Init (&md5ctx);
while ((bytes = fread (data, 1, 1024, in)) != 0)
MD5_Update (&md5ctx, data, bytes);
MD5_Final (digest, &md5ctx);
fclose (in);
out = g_malloc (33);
for (i = 0; i < 16; ++i)
sprintf (&out[i*2], "%02x", (unsigned int)digest[i]);
*md5str = out;
return TRUE;
}
unsigned long
cml_node_get_range_count(const cml_node *mn)
{
return (mn->range == 0 ? 0 : range_count(mn->range));
}
