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make sure that when TLSX_ALPN_GetRequest() returns data and dataSz are not pointing to junk.

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This commit is contained in:
Anthony Hu 2023-06-22 15:01:11 -04:00
parent 3cb0b4ab29
commit 3e821c6f2b
1 changed files with 3 additions and 2 deletions
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5
src/tls.c
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@ -1803,6 +1803,9 @@ int TLSX_ALPN_GetRequest(TLSX* extensions, void** data, word16 *dataSz)
if (extensions == NULL || data == NULL || dataSz == NULL)
return BAD_FUNC_ARG;
*data = NULL;
*dataSz = 0;
extension = TLSX_Find(extensions, TLSX_APPLICATION_LAYER_PROTOCOL);
if (extension == NULL) {
WOLFSSL_MSG("TLS extension not found");
@ -1813,8 +1816,6 @@ int TLSX_ALPN_GetRequest(TLSX* extensions, void** data, word16 *dataSz)
alpn = (ALPN *)extension->data;
if (alpn == NULL) {
WOLFSSL_MSG("ALPN extension not found");
*data = NULL;
*dataSz = 0;
WOLFSSL_ERROR_VERBOSE(WOLFSSL_FATAL_ERROR);
return WOLFSSL_FATAL_ERROR;
}