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Diffstat (limited to 'libc/sysdeps/linux/common/fstat.c')
-rw-r--r--libc/sysdeps/linux/common/fstat.c28
1 files changed, 24 insertions, 4 deletions
diff --git a/libc/sysdeps/linux/common/fstat.c b/libc/sysdeps/linux/common/fstat.c
index 4726a6879..696f79ea7 100644
--- a/libc/sysdeps/linux/common/fstat.c
+++ b/libc/sysdeps/linux/common/fstat.c
@@ -12,10 +12,28 @@
#include <sys/stat.h>
#include "xstatconv.h"
+#if defined __NR_fstat64 && !defined __NR_fstat
+int fstat(int fd, struct stat *buf)
+{
+ int result = INLINE_SYSCALL(fstat64, 2, fd, buf);
+ if (result == 0) {
+ /* Did we overflow? */
+ if (buf->__pad1 || buf->__pad2 || buf->__pad3
+ || buf->__pad4 || buf->__pad5
+ || buf->__pad6 || buf->__pad7) {
+ __set_errno(EOVERFLOW);
+ return -1;
+ }
+ }
+ return result;
+}
+libc_hidden_def(fstat)
+
+#elif defined __NR_fstat
int fstat(int fd, struct stat *buf)
{
int result;
-#ifdef __NR_fstat64
+# ifdef __NR_fstat64
/* normal stat call has limited values for various stat elements
* e.g. uid device major/minor etc.
* so we use 64 variant if available
@@ -26,19 +44,21 @@ int fstat(int fd, struct stat *buf)
if (result == 0) {
__xstat32_conv(&kbuf, buf);
}
-#else
+# else
struct kernel_stat kbuf;
result = INLINE_SYSCALL(fstat, 2, fd, &kbuf);
if (result == 0) {
__xstat_conv(&kbuf, buf);
}
-#endif
+# endif
return result;
}
libc_hidden_def(fstat)
-#if ! defined __NR_fstat64 && defined __UCLIBC_HAS_LFS__
+# if ! defined __NR_fstat64 && defined __UCLIBC_HAS_LFS__
strong_alias_untyped(fstat,fstat64)
libc_hidden_def(fstat64)
+# endif
+
#endif