3 files changed, 23 insertions, 1 deletions
diff --git a/userland/libc/include/socket.h b/userland/libc/include/socket.h
index 5e86b45..c4a3e73 100644
--- a/userland/libc/include/socket.h
+++ b/userland/libc/include/socket.h
@@ -1,9 +1,14 @@
+#ifndef SOCKET_H
+#define SOCKET_H
 #include <stddef.h>
 #include <stdint.h>
 
 #define AF_UNIX 0
+#define AF_INET 1
 #define AF_LOCAL AF_UNIX
 
+#define SOCK_DGRAM 0
+
 #define INADDR_ANY 0
 
 typedef struct {
@@ -24,13 +29,21 @@ typedef struct {
 typedef uint32_t in_addr_t;
 typedef uint16_t in_port_t;
 typedef unsigned int sa_family_t;
-typedef uint32_t socklen_t;
+typedef int socklen_t;
 
 struct sockaddr {
   sa_family_t sa_family; /* Address family */
   char *sa_data;         /* Socket address */
 };
 
+struct sockaddr_in {
+  sa_family_t sin_family;
+  union {
+    uint32_t s_addr;
+  } sin_addr;
+  uint16_t sin_port;
+};
+
 struct sockaddr_un {
   sa_family_t sun_family; /* Address family */
   char *sun_path;         /* Socket pathname */
@@ -39,3 +52,4 @@ struct sockaddr_un {
 int socket(int domain, int type, int protocol);
 int accept(int socket, struct sockaddr *address, socklen_t *address_len);
 int bind(int sockfd, const struct sockaddr *addr, socklen_t addrlen);
+#endif // SOCKET_H
diff --git a/userland/libc/include/sys/socket.h b/userland/libc/include/sys/socket.h
index e69de29..18402d0 100644
--- a/userland/libc/include/sys/socket.h
+++ b/userland/libc/include/sys/socket.h
@@ -0,0 +1,7 @@
+#include <socket.h>
+#include <stddef.h>
+
+#define MSG_WAITALL 1
+
+size_t recvfrom(int socket, void *buffer, size_t length, int flags,
+                struct sockaddr *address, socklen_t *address_len);
diff --git a/userland/libc/include/syscall.h b/userland/libc/include/syscall.h
index b3863d2..7d84b8f 100644
--- a/userland/libc/include/syscall.h
+++ b/userland/libc/include/syscall.h
@@ -32,6 +32,7 @@
 #define SYS_MSLEEP 24
 #define SYS_UPTIME 25
 #define SYS_MKDIR 26
+#define SYS_RECVFROM 27
 
 int syscall(uint32_t eax, uint32_t ebx, uint32_t ecx, uint32_t edx,
             uint32_t esi, uint32_t edi);