kernel: _sys_getnull() (basically /dev/null)

2 files changed, 11 insertions, 2 deletions

diff --git a/src/libc/socket.c b/src/libc/socket.c
index a8871a3..5ea7266 100644
--- a/src/libc/socket.c
+++ b/src/libc/socket.c
@@ -1,5 +1,6 @@
 #include <arpa/inet.h>
 #include <camellia.h>
+#include <camellia/syscalls.h>
 #include <errno.h>
 #include <netdb.h>
 #include <netinet/in.h>
@@ -10,8 +11,12 @@ int socket(int domain, int type, int protocol) {
 	if (domain != AF_INET || type != SOCK_STREAM || protocol != IPPROTO_TCP) {
 		return errno = ENOSYS, -1;
 	}
-	// TODO! /dev/null
-	return dup(1); // yolo
+	int h = _sys_getnull(0);
+	if (h < 0) {
+		return errno = -h, -1;
+	} else {
+		return h;
+	}
 }
 
 int bind(int, const struct sockaddr *, socklen_t) {
diff --git a/src/libc/syscall.c b/src/libc/syscall.c
index 8142028..f44c775 100644
--- a/src/libc/syscall.c
+++ b/src/libc/syscall.c
@@ -94,6 +94,10 @@ uint64_t _sys_time(int flags) {
 	return (uint64_t)_syscall(_SYS_TIME, (long)flags, 0, 0, 0, 0);
 }
 
+hid_t _sys_getnull(int flags) {
+	return (hid_t)_syscall(_SYS_GETNULL, (long)flags, 0, 0, 0, 0);
+}
+
 long _sys_execbuf(void __user *buf, size_t len) {
 	return _syscall(_SYS_EXECBUF, (long)buf, (long)len, 0, 0, 0);
 }