lib/libssh2
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When shutting down sub-systems and closing the channel try our best

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to free any memory still allocated in the state variables
This commit is contained in:
James Housley
2007-06-07 16:43:20 +00:00
parent bb32d080fa
commit b2f3582a59
5 changed files with 125 additions and 0 deletions
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49
src/session.c
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@@ -576,10 +576,12 @@ LIBSSH2_API int libssh2_session_startup(LIBSSH2_SESSION *session, int socket)
if ((session->startup_service_length != (sizeof("ssh-userauth") - 1)) ||
strncmp("ssh-userauth", (char *)session->startup_data + 5, session->startup_service_length)) {
LIBSSH2_FREE(session, session->startup_data);
session->startup_data = NULL;
libssh2_error(session, LIBSSH2_ERROR_PROTO, "Invalid response received from server", 0);
return LIBSSH2_ERROR_PROTO;
}
LIBSSH2_FREE(session, session->startup_data);
session->startup_data = NULL;
session->startup_state = libssh2_NB_state_idle;
@@ -702,6 +704,52 @@ LIBSSH2_API void libssh2_session_free(LIBSSH2_SESSION *session)
LIBSSH2_FREE(session, session->remote.lang_prefs);
}
/*
* Make sure all memory used in the state variables are free
*/
if (session->startup_data) {
LIBSSH2_FREE(session, session->startup_data);
}
if (session->disconnect_data) {
LIBSSH2_FREE(session, session->disconnect_data);
}
if (session->userauth_data) {
LIBSSH2_FREE(session, session->userauth_data);
}
if (session->userauth_newpw) {
LIBSSH2_FREE(session, session->userauth_newpw);
}
if (session->userauth_packet) {
LIBSSH2_FREE(session, session->userauth_packet);
}
if (session->userauth_method) {
LIBSSH2_FREE(session, session->userauth_method);
}
if (session->userauth_auth_instruction) {
LIBSSH2_FREE(session, session->userauth_auth_instruction);
}
if (session->open_packet) {
LIBSSH2_FREE(session, session->open_packet);
}
if (session->open_data) {
LIBSSH2_FREE(session, session->open_data);
}
if (session->direct_message) {
LIBSSH2_FREE(session, session->direct_message);
}
if (session->fwdLstn_packet) {
LIBSSH2_FREE(session, session->fwdLstn_packet);
}
if (session->pkeyInit_data) {
LIBSSH2_FREE(session, session->pkeyInit_data);
}
if (session->scpRecv_command) {
LIBSSH2_FREE(session, session->scpRecv_command);
}
if (session->scpSend_command) {
LIBSSH2_FREE(session, session->scpSend_command);
}
/* Cleanup any remaining packets */
while (session->packets.head) {
LIBSSH2_PACKET *tmp = session->packets.head;
@@ -768,6 +816,7 @@ LIBSSH2_API int libssh2_session_disconnect_ex(LIBSSH2_SESSION *session, int reas
}
LIBSSH2_FREE(session, session->disconnect_data);
session->disconnect_data = NULL;
session->disconnect_state = libssh2_NB_state_idle;
return 0;