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auth: Check if we have any prompts.

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This commit is contained in:
Andreas Schneider
2011-09-11 15:29:27 +02:00
parent 95ec57f2fd
commit 3b5bdc5db4
1 changed files with 3 additions and 2 deletions
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5
src/auth.c
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@@ -1684,9 +1684,10 @@ SSH_PACKET_CALLBACK(ssh_packet_userauth_info_request) {
nprompts = ntohl(nprompts); nprompts = ntohl(nprompts);
ssh_log(session,SSH_LOG_PACKET,"kbdint: %d prompts",nprompts); ssh_log(session,SSH_LOG_PACKET,"kbdint: %d prompts",nprompts);
if (nprompts > KBDINT_MAX_PROMPT) { if (nprompts == 0 ||
nprompts > KBDINT_MAX_PROMPT) {
ssh_set_error(session, SSH_FATAL, ssh_set_error(session, SSH_FATAL,
"Too much prompt asked from server: %u (0x%.4x)", "Wrong number of prompts requested by the server: %u (0x%.4x)",
nprompts, nprompts); nprompts, nprompts);
ssh_kbdint_free(session->kbdint); ssh_kbdint_free(session->kbdint);
session->kbdint = NULL; session->kbdint = NULL;