Kernel+LibC+LibCore: Implement the unlinkat(2) syscall

2 files changed, 8 insertions, 1 deletions

diff --git a/Userland/Libraries/LibC/unistd.cpp b/Userland/Libraries/LibC/unistd.cpp
index f613be7a19..cd88b63a90 100644
--- a/Userland/Libraries/LibC/unistd.cpp
+++ b/Userland/Libraries/LibC/unistd.cpp
@@ -644,7 +644,13 @@ int link(char const* old_path, char const* new_path)
 // https://pubs.opengroup.org/onlinepubs/9699919799/functions/unlink.html
 int unlink(char const* pathname)
 {
-    int rc = syscall(SC_unlink, pathname, strlen(pathname));
+    return unlinkat(AT_FDCWD, pathname, 0);
+}
+
+// https://pubs.opengroup.org/onlinepubs/9699919799/functions/unlinkat.html
+int unlinkat(int dirfd, char const* pathname, int flags)
+{
+    int rc = syscall(SC_unlink, dirfd, pathname, strlen(pathname), flags);
     __RETURN_WITH_ERRNO(rc, rc, -1);
 }
 
diff --git a/Userland/Libraries/LibC/unistd.h b/Userland/Libraries/LibC/unistd.h
index 8ce3ac92e4..b6e56d9591 100644
--- a/Userland/Libraries/LibC/unistd.h
+++ b/Userland/Libraries/LibC/unistd.h
@@ -92,6 +92,7 @@ int ttyname_r(int fd, char* buffer, size_t);
 off_t lseek(int fd, off_t, int whence);
 int link(char const* oldpath, char const* newpath);
 int unlink(char const* pathname);
+int unlinkat(int dirfd, char const* pathname, int flags);
 int symlink(char const* target, char const* linkpath);
 int rmdir(char const* pathname);
 int dup(int old_fd);