malloc zero length buffer
ifreebiz at fastmail.fm
Thu Jul 20 12:22:03 EDT 2006
I am trying to use wpa_supplication on a MIPS embedded system, but I
found a strange problem with function eap_tls_data_reassemble().
When the authentication starts, the in_len is 0.
The statement - "data->tls_in = malloc(in_len);" in this function behave
differently when it on a linux box and when it is the target. On linux,
the malloc return a non-null pointer, but on my target, it return a null
pointer. On the target, null pointer causes the authentication failure
So I am fixing the problem as follows, but I don't know it is a proper
way to fix it. Any line starts with "=>" is what I added.
=> if ((data->tls_in_left == 0)&& (in_len == 0)
&&(data->tls_in == 0))
=> // work around
=> wpa_printf(MSG_DEBUG, "data->tls_in malloc work
=> data->tls_in = & data->tls_in_left;
=> } else
data->tls_in = malloc(in_len);
if (data->tls_in == NULL)
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