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properly handle length-zero opaque PRF input values

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(which are pointless, but still might occur)
This commit is contained in:
Bodo Möller
2007-09-23 11:30:53 +00:00
parent 86d4bc3aea
commit 02c27b113c
2 changed files with 20 additions and 6 deletions
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5
ssl/s3_lib.c
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@@ -2369,7 +2369,10 @@ long ssl3_ctrl(SSL *s, int cmd, long larg, void *parg)
}
if (s->tlsext_opaque_prf_input != NULL)
OPENSSL_free(s->tlsext_opaque_prf_input);
s->tlsext_opaque_prf_input = BUF_memdup(parg, (size_t)larg);
if ((size_t)larg == 0)
s->tlsext_opaque_prf_input = OPENSSL_malloc(1); /* dummy byte just to get non-NULL */
else
s->tlsext_opaque_prf_input = BUF_memdup(parg, (size_t)larg);
if (s->tlsext_opaque_prf_input != NULL)
{
s->tlsext_opaque_prf_input_len = (size_t)larg;