diff options
Diffstat (limited to 'tools/blktap/drivers/block-qcow.c')
-rw-r--r-- | tools/blktap/drivers/block-qcow.c | 17 |
1 files changed, 4 insertions, 13 deletions
diff --git a/tools/blktap/drivers/block-qcow.c b/tools/blktap/drivers/block-qcow.c index 549cc7c793..dd6c6c7c07 100644 --- a/tools/blktap/drivers/block-qcow.c +++ b/tools/blktap/drivers/block-qcow.c @@ -33,7 +33,7 @@ #include <zlib.h> #include <inttypes.h> #include <libaio.h> -#include <openssl/md5.h> +#include <gcrypt.h> #include "bswap.h" #include "aes.h" #include "tapdisk.h" @@ -149,31 +149,22 @@ static int decompress_cluster(struct tdqcow_state *s, uint64_t cluster_offset); static uint32_t gen_cksum(char *ptr, int len) { int i; - unsigned char *md; - uint32_t ret; + uint32_t md[4]; - md = malloc(MD5_DIGEST_LENGTH); - - if(!md) return 0; - /* Convert L1 table to big endian */ for(i = 0; i < len / sizeof(uint64_t); i++) { cpu_to_be64s(&((uint64_t*) ptr)[i]); } /* Generate checksum */ - if (MD5((unsigned char *)ptr, len, md) != md) - ret = 0; - else - memcpy(&ret, md, sizeof(uint32_t)); + gcry_md_hash_buffer(GCRY_MD_MD5, md, ptr, len); /* Convert L1 table back to native endianess */ for(i = 0; i < len / sizeof(uint64_t); i++) { be64_to_cpus(&((uint64_t*) ptr)[i]); } - free(md); - return ret; + return md[0]; } static int get_filesize(char *filename, uint64_t *size, struct stat *st) |