Add symlink function (not yet implemented in ext2)

libc/inc/sys/unistd.h

@@ -54,6 +54,12 @@ off_t lseek(int fd, off_t offset, int whence);
 /// @return
 int unlink(const char *path);
 
+/// @brief Creates a symbolic link.
+/// @param linkname the name of the link.
+/// @param path the entity it is linking to.
+/// @return 0 on success, a negative number if fails and errno is set.
+int symlink(const char *linkname, const char *path);
+
 /// @brief Wrapper for exit system call.
 /// @param status The exit status.
 extern void exit(int status);

libc/src/unistd/symlink.c

@@ -0,0 +1,10 @@
+/// @file unlink.c
+/// @brief
+/// @copyright (c) 2014-2023 This file is distributed under the MIT License.
+/// See LICENSE.md for details.
+
+#include "sys/unistd.h"
+#include "sys/errno.h"
+#include "system/syscall_types.h"
+
+_syscall2(int, symlink, const char *, linkname, const char *, path)