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Diffstat (limited to 'libc/sysdeps/linux/common/fchown.c')
-rw-r--r--libc/sysdeps/linux/common/fchown.c25
1 files changed, 25 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/common/fchown.c b/libc/sysdeps/linux/common/fchown.c
new file mode 100644
index 000000000..a54b450c4
--- /dev/null
+++ b/libc/sysdeps/linux/common/fchown.c
@@ -0,0 +1,25 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * fchown() for uClibc
+ *
+ * Copyright (C) 2000-2004 by Erik Andersen <andersen@codpoet.org>
+ *
+ * GNU Library General Public License (LGPL) version 2 or later.
+ */
+
+#include "syscalls.h"
+#include <unistd.h>
+
+#define __NR___syscall_fchown __NR_fchown
+static inline _syscall3(int, __syscall_fchown, int, fd,
+ __kernel_uid_t, owner, __kernel_gid_t, group);
+
+int fchown(int fd, uid_t owner, gid_t group)
+{
+ if (((owner + 1) > (uid_t) ((__kernel_uid_t) - 1U))
+ || ((group + 1) > (gid_t) ((__kernel_gid_t) - 1U))) {
+ __set_errno(EINVAL);
+ return -1;
+ }
+ return (__syscall_fchown(fd, owner, group));
+}