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-rw-r--r--src/channels.c27
1 files changed, 23 insertions, 4 deletions
diff --git a/src/channels.c b/src/channels.c
index 66d60550..19f33dfe 100644
--- a/src/channels.c
+++ b/src/channels.c
@@ -811,13 +811,18 @@ SSH_PACKET_CALLBACK(channel_rcv_request) {
int channel_default_bufferize(ssh_channel channel, void *data, int len,
int is_stderr) {
ssh_session session;
-
- if(channel == NULL || data == NULL) {
+
+ if(channel == NULL) {
return -1;
}
session = channel->session;
+ if(data == NULL) {
+ ssh_set_error_invalid(session, __FUNCTION__);
+ return -1;
+ }
+
ssh_log(session, SSH_LOG_RARE,
"placing %d bytes into channel buffer (stderr=%d)", len, is_stderr);
if (is_stderr == 0) {
@@ -911,11 +916,17 @@ int ssh_channel_open_forward(ssh_channel channel, const char *remotehost,
ssh_string str = NULL;
int rc = SSH_ERROR;
- if(channel == NULL || remotehost == NULL || sourcehost == NULL) {
+ if(channel == NULL) {
return rc;
}
session = channel->session;
+
+ if(remotehost == NULL || sourcehost == NULL) {
+ ssh_set_error_invalid(session, __FUNCTION__);
+ return rc;
+ }
+
enter_function();
payload = ssh_buffer_new();
@@ -1122,6 +1133,10 @@ int channel_write_common(ssh_channel channel, const void *data,
return -1;
}
session = channel->session;
+ if(data == NULL) {
+ ssh_set_error_invalid(session, __FUNCTION__);
+ return -1;
+ }
enter_function();
if (channel->local_eof) {
@@ -2869,7 +2884,11 @@ int ssh_channel_request_send_exit_signal(ssh_channel channel, const char *sig,
ssh_string tmp = NULL;
int rc = SSH_ERROR;
- if(channel == NULL || sig == NULL || errmsg == NULL || lang == NULL) {
+ if(channel == NULL) {
+ return rc;
+ }
+ if(sig == NULL || errmsg == NULL || lang == NULL) {
+ ssh_set_error_invalid(channel->session, __FUNCTION__);
return rc;
}
#ifdef WITH_SSH1