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callbacks: Implement list of callbacks for channels

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Signed-off-by: Aris Adamantiadis <aris@0xbadc0de.be>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
This commit is contained in:
Aris Adamantiadis
2015-07-07 00:05:29 +02:00
committed by Andreas Schneider
parent 5c67530f1e
commit bbe437dbb1
6 changed files with 286 additions and 166 deletions
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98
src/callbacks.c
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@@ -25,7 +25,10 @@
#include "libssh/callbacks.h"
#include "libssh/session.h"
#include "libssh/misc.h"
#define is_callback_valid(session, cb) \
(cb->size <= 0 || cb->size > 1024 * sizeof(void *))
/* LEGACY */
static void ssh_legacy_log_callback(int priority,
@@ -47,12 +50,12 @@ int ssh_set_callbacks(ssh_session session, ssh_callbacks cb) {
return SSH_ERROR;
}
if(cb->size <= 0 || cb->size > 1024 * sizeof(void *)){
ssh_set_error(session,SSH_FATAL,
"Invalid callback passed in (badly initialized)");
return SSH_ERROR;
}
if (is_callback_valid(session, cb)) {
ssh_set_error(session,
SSH_FATAL,
"Invalid callback passed in (badly initialized)");
return SSH_ERROR;
};
session->common.callbacks = cb;
/* LEGACY */
@@ -64,35 +67,80 @@ int ssh_set_callbacks(ssh_session session, ssh_callbacks cb) {
return 0;
}
int ssh_set_channel_callbacks(ssh_channel channel, ssh_channel_callbacks cb) {
ssh_session session = NULL;
if (channel == NULL || cb == NULL) {
return SSH_ERROR;
}
session = channel->session;
static int ssh_add_set_channel_callbacks(ssh_channel channel,
ssh_channel_callbacks cb,
int prepend)
{
ssh_session session = NULL;
int rc;
if(cb->size <= 0 || cb->size > 1024 * sizeof(void *)){
ssh_set_error(session,SSH_FATAL,
"Invalid channel callback passed in (badly initialized)");
if (channel == NULL || cb == NULL) {
return SSH_ERROR;
}
session = channel->session;
return SSH_ERROR;
}
channel->callbacks = cb;
if (is_callback_valid(session, cb)) {
ssh_set_error(session,
SSH_FATAL,
"Invalid callback passed in (badly initialized)");
return SSH_ERROR;
};
if (channel->callbacks == NULL) {
channel->callbacks = ssh_list_new();
if (channel->callbacks == NULL){
ssh_set_error_oom(session);
return SSH_ERROR;
}
}
if (prepend) {
rc = ssh_list_prepend(channel->callbacks, cb);
} else {
rc = ssh_list_append(channel->callbacks, cb);
}
return 0;
return rc;
}
int ssh_set_channel_callbacks(ssh_channel channel, ssh_channel_callbacks cb)
{
return ssh_add_set_channel_callbacks(channel, cb, 1);
}
int ssh_add_channel_callbacks(ssh_channel channel, ssh_channel_callbacks cb)
{
return ssh_add_set_channel_callbacks(channel, cb, 0);
}
int ssh_remove_channel_callbacks(ssh_channel channel, ssh_channel_callbacks cb)
{
struct ssh_iterator *it;
if (channel == NULL || channel->callbacks == NULL){
return SSH_ERROR;
}
it = ssh_list_find(channel->callbacks, cb);
if (it == NULL){
return SSH_ERROR;
}
ssh_list_remove(channel->callbacks, it);
return SSH_OK;
}
int ssh_set_server_callbacks(ssh_session session, ssh_server_callbacks cb){
if (session == NULL || cb == NULL) {
return SSH_ERROR;
}
if(cb->size <= 0 || cb->size > 1024 * sizeof(void *)){
ssh_set_error(session,SSH_FATAL,
"Invalid callback passed in (badly initialized)");
return SSH_ERROR;
}
if (is_callback_valid(session, cb)) {
ssh_set_error(session,
SSH_FATAL,
"Invalid callback passed in (badly initialized)");
return SSH_ERROR;
};
session->server_callbacks = cb;
return 0;