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signal-protocol: use proper types and fix memleak (#59)

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Marvin W 2017-04-19 20:26:07 +02:00
parent 7e388fb2bc
commit 5c8275ed4e
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GPG key ID: 072E9235DB996F2A
1 changed files with 5 additions and 4 deletions
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9
plugins/signal-protocol/src/signal_helper.c
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@ -113,8 +113,8 @@ int signal_vala_hmac_sha256_update(void *hmac_context, const uint8_t *data, size
}
int signal_vala_hmac_sha256_final(void *hmac_context, signal_buffer **output, void *user_data) {
unsigned int len = gcry_mac_get_algo_maclen(GCRY_MAC_HMAC_SHA256);
unsigned char md[len];
size_t len = gcry_mac_get_algo_maclen(GCRY_MAC_HMAC_SHA256);
uint8_t md[len];
gcry_mac_hd_t* ctx = hmac_context;
if (gcry_mac_read(*ctx, md, &len)) return SG_ERR_UNKNOWN;
@ -158,15 +158,16 @@ int signal_vala_sha512_digest_update(void *digest_context, const uint8_t *data,
}
int signal_vala_sha512_digest_final(void *digest_context, signal_buffer **output, void *user_data) {
unsigned int len = gcry_md_get_algo_dlen(GCRY_MD_SHA512);
size_t len = gcry_md_get_algo_dlen(GCRY_MD_SHA512);
gcry_md_hd_t* ctx = digest_context;
unsigned char* md = gcry_md_read(*ctx, GCRY_MD_SHA512);
uint8_t* md = gcry_md_read(*ctx, GCRY_MD_SHA512);
if (!md) return SG_ERR_UNKNOWN;
gcry_md_reset(*ctx);
signal_buffer *output_buffer = signal_buffer_create(md, len);
free(md);
if (!output_buffer) return SG_ERR_NOMEM;
*output = output_buffer;