akkartik
/
teliva
1
1
Fork 0
Code Issues Pull Requests Releases Activity

network calls are now sandboxed 

I _think_ I don't need to gate other socket calls; you can't do anything
without bind() and connect(). And they should be good places to dump
more precise details later about the kind of server or client connection
being attempted.
This commit is contained in:
Kartik K. Agaram 2021-12-25 20:37:45 -08:00
parent 16d949e259
commit 6ae7bf91b1
1 changed files with 10 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
src/luasocket/usocket.c
View File

@ -7,6 +7,7 @@
* the I/O call fail in the first place.
\*=========================================================================*/
#include "luasocket.h"
#include "../teliva.h"
#include "socket.h"
#include "pierror.h"
@ -91,7 +92,7 @@ int socket_close(void) {
}
/*-------------------------------------------------------------------------*\
* Close and inutilize socket
* Close and initialize socket
\*-------------------------------------------------------------------------*/
void socket_destroy(p_socket ps) {
if (*ps != SOCKET_INVALID) {
@ -131,6 +132,10 @@ int socket_create(p_socket ps, int domain, int type, int protocol) {
\*-------------------------------------------------------------------------*/
int socket_bind(p_socket ps, SA *addr, socklen_t len) {
int err = IO_DONE;
if (!net_operations_allowed) {
Previous_message = "app tried to start a server; adjust its permissions (ctrl-p) if that is expected";
return IO_CLOSED;
}
socket_setblocking(ps);
if (bind(*ps, addr, len) < 0) err = errno;
socket_setnonblocking(ps);
@ -160,6 +165,10 @@ int socket_connect(p_socket ps, SA *addr, socklen_t len, p_timeout tm) {
int err;
/* avoid calling on closed sockets */
if (*ps == SOCKET_INVALID) return IO_CLOSED;
if (!net_operations_allowed) {
Previous_message = "app tried to connect to a remote server; adjust its permissions (ctrl-p) if that is expected";
return IO_CLOSED;
}
/* call connect until done or failed without being interrupted */
do if (connect(*ps, addr, len) == 0) return IO_DONE;
while ((err = errno) == EINTR);