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Fix for a memory BIO and handle BIO chains

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Tesfa Mael
2019-10-08 12:26:54 -07:00
parent 625bd121f2
commit a84fbeae6b
1 changed files with 19 additions and 5 deletions
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24
src/bio.c
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@ -869,20 +869,34 @@ size_t wolfSSL_BIO_ctrl_pending(WOLFSSL_BIO *bio)
long wolfSSL_BIO_get_mem_ptr(WOLFSSL_BIO *bio, WOLFSSL_BUF_MEM **ptr) long wolfSSL_BIO_get_mem_ptr(WOLFSSL_BIO *bio, WOLFSSL_BUF_MEM **ptr)
{ {
WOLFSSL_BIO* front = bio;
long ret = WOLFSSL_FAILURE;
WOLFSSL_ENTER("wolfSSL_BIO_get_mem_ptr"); WOLFSSL_ENTER("wolfSSL_BIO_get_mem_ptr");
if (bio == NULL || ptr == NULL) { if (bio == NULL || ptr == NULL) {
return WOLFSSL_FAILURE; return WOLFSSL_FAILURE;
} }
if (bio->type != WOLFSSL_BIO_MEMORY) { /* start at end and work backwards to find a memory BIO in the BIO chain */
WOLFSSL_MSG("BIO is not memory buffer type"); while ((bio != NULL) && (bio->next != NULL)) {
return SSL_FAILURE; bio = bio->next;
} }
*ptr = bio->mem_buf; while (bio != NULL) {
return SSL_SUCCESS; if (bio->type == WOLFSSL_BIO_MEMORY) {
*ptr = bio->mem_buf;
ret = WOLFSSL_SUCCESS;
}
if (bio == front) {
break;
}
bio = bio->prev;
}
return ret;
} }
WOLFSSL_API long wolfSSL_BIO_int_ctrl(WOLFSSL_BIO *bp, int cmd, long larg, int iarg) WOLFSSL_API long wolfSSL_BIO_int_ctrl(WOLFSSL_BIO *bp, int cmd, long larg, int iarg)