From 620d37f41747e943648544d1fd1567d386c91e04 Mon Sep 17 00:00:00 2001
From: Anton Kling <anton@kling.gg>
Date: Wed, 17 Apr 2024 17:06:16 +0200
Subject: Kernel/LibC: Add fstat() and remove stat() syscall

---
 userland/libc/sys/stat/fstat.c |  9 +++++++++
 userland/libc/sys/stat/stat.c  | 13 ++++++++-----
 2 files changed, 17 insertions(+), 5 deletions(-)
 create mode 100644 userland/libc/sys/stat/fstat.c

(limited to 'userland/libc/sys/stat')

diff --git a/userland/libc/sys/stat/fstat.c b/userland/libc/sys/stat/fstat.c
new file mode 100644
index 0000000..13b2b04
--- /dev/null
+++ b/userland/libc/sys/stat/fstat.c
@@ -0,0 +1,9 @@
+#include <assert.h>
+#include <errno.h>
+#include <stdio.h>
+#include <sys/stat.h>
+#include <syscall.h>
+
+int fstat(int fd, struct stat *buf) {
+  RC_ERRNO(syscall(SYS_FSTAT, fd, buf, 0, 0, 0));
+}
diff --git a/userland/libc/sys/stat/stat.c b/userland/libc/sys/stat/stat.c
index e37223e..00b4f52 100644
--- a/userland/libc/sys/stat/stat.c
+++ b/userland/libc/sys/stat/stat.c
@@ -1,13 +1,16 @@
 #include <assert.h>
 #include <errno.h>
+#include <fcntl.h>
 #include <stdio.h>
 #include <sys/stat.h>
 #include <syscall.h>
 
 int stat(const char *path, struct stat *buf) {
-  SYS_STAT_PARAMS args = {
-      .pathname = path,
-      .statbuf = buf,
-  };
-  RC_ERRNO(syscall(SYS_STAT, &args, 0, 0, 0, 0));
+  int fd = open(path, O_RDONLY);
+  if (-1 == fd) {
+    return -1;
+  }
+  int rc = fstat(fd, buf);
+  close(fd);
+  return rc;
 }
-- 
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