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List: uclibc
Subject: [PATCH v3 32/48] fstat: Use fstat64 if arch does not have the fstat syscall
From: Markos Chandras <markos.chandras () gmail ! com>
Date: 2013-01-23 11:41:56
Message-ID: 1358941332-6190-33-git-send-email-markos.chandras () gmail ! com
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From: Markos Chandras <markos.chandras@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
---
libc/sysdeps/linux/common/fstat.c | 20 ++++++++++++++++++++
libc/sysdeps/linux/common/fstat64.c | 4 ++++
2 files changed, 24 insertions(+)
diff --git a/libc/sysdeps/linux/common/fstat.c b/libc/sysdeps/linux/common/fstat.c
index 4726a68..3034bd0 100644
--- a/libc/sysdeps/linux/common/fstat.c
+++ b/libc/sysdeps/linux/common/fstat.c
@@ -12,6 +12,24 @@
#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;
@@ -42,3 +60,5 @@ libc_hidden_def(fstat)
strong_alias_untyped(fstat,fstat64)
libc_hidden_def(fstat64)
#endif
+
+#endif
diff --git a/libc/sysdeps/linux/common/fstat64.c b/libc/sysdeps/linux/common/fstat64.c
index 7460c26..4a14a74 100644
--- a/libc/sysdeps/linux/common/fstat64.c
+++ b/libc/sysdeps/linux/common/fstat64.c
@@ -21,6 +21,7 @@ static __always_inline _syscall2(int, __syscall_fstat64,
int fstat64(int fd, struct stat64 *buf)
{
int result;
+#ifdef __ARCH_HAS_DEPRECATED_SYSCALLS__
struct kernel_stat64 kbuf;
result = __syscall_fstat64(fd, &kbuf);
@@ -28,6 +29,9 @@ int fstat64(int fd, struct stat64 *buf)
__xstat64_conv(&kbuf, buf);
}
return result;
+#else
+ return __syscall_fstat64(fd, buf);
+#endif
}
libc_hidden_def(fstat64)
#endif
--
1.8.1.1
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