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transport.c: moving total_num check from #476 (#478)

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file: transport.c

notes:
moving total_num zero length check from #476 up to the prior bounds check which already includes a total_num check. Makes it slightly more readable.

credit:
Will Cosgrove
This commit is contained in:
Will Cosgrove
2020-05-28 14:20:08 -07:00
committed by GitHub
parent 642eec48ff
commit 0b44e558f3
1 changed files with 2 additions and 2 deletions
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4
src/transport.c
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@@ -465,14 +465,14 @@ int _libssh2_transport_read(LIBSSH2_SESSION * session)
* or less (including length, padding length, payload, * or less (including length, padding length, payload,
* padding, and MAC.)." * padding, and MAC.)."
*/ */
if(total_num > LIBSSH2_PACKET_MAXPAYLOAD) { if(total_num > LIBSSH2_PACKET_MAXPAYLOAD || total_num == 0) {
return LIBSSH2_ERROR_OUT_OF_BOUNDARY; return LIBSSH2_ERROR_OUT_OF_BOUNDARY;
} }
/* Get a packet handle put data into. We get one to /* Get a packet handle put data into. We get one to
hold all data, including padding and MAC. */ hold all data, including padding and MAC. */
p->payload = LIBSSH2_ALLOC(session, total_num); p->payload = LIBSSH2_ALLOC(session, total_num);
if(total_num == 0 || !p->payload) { if(!p->payload) {
return LIBSSH2_ERROR_ALLOC; return LIBSSH2_ERROR_ALLOC;
} }
p->total_num = total_num; p->total_num = total_num;