Setting the ex_data index is unsafe in a threaded environment, so

let's wrap it with a lock.
This commit is contained in:
Richard Levitte
2003-10-06 09:09:44 +00:00
parent 6895cca89d
commit c40b9bdefb
3 changed files with 10 additions and 5 deletions

View File

@@ -178,9 +178,12 @@ static int zlib_stateful_init(COMP_CTX *ctx)
CRYPTO_new_ex_data(CRYPTO_EX_INDEX_COMP,ctx,&ctx->ex_data);
if (zlib_stateful_ex_idx == -1)
{
zlib_stateful_ex_idx =
CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_COMP,
0,NULL,NULL,NULL,zlib_stateful_free_ex_data);
CRYPTO_w_lock(CRYPTO_LOCK_COMP);
if (zlib_stateful_ex_idx == -1)
zlib_stateful_ex_idx =
CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_COMP,
0,NULL,NULL,NULL,zlib_stateful_free_ex_data);
CRYPTO_w_unlock(CRYPTO_LOCK_COMP);
if (zlib_stateful_ex_idx == -1)
goto err;
}