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authorMarkos Chandras <markos.chandras@imgtec.com>2012-10-11 11:38:44 +0100
committerBernhard Reutner-Fischer <rep.dot.nop@gmail.com>2013-02-20 13:45:12 +0100
commita1a76682c458e7d6bb654ddb42135c7be8872a9d (patch)
tree21efc7fd9780dd2090335c37c41525527341c637 /libc/sysdeps/linux/common/statfs.c
parent92b784d6a58d8baa52289bea6a286752c3e6200e (diff)
statfs: Use statfs64 if arch does not have the statfs syscall
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
Diffstat (limited to 'libc/sysdeps/linux/common/statfs.c')
-rw-r--r--libc/sysdeps/linux/common/statfs.c35
1 files changed, 32 insertions, 3 deletions
diff --git a/libc/sysdeps/linux/common/statfs.c b/libc/sysdeps/linux/common/statfs.c
index d24bc9d0c..aae4738ea 100644
--- a/libc/sysdeps/linux/common/statfs.c
+++ b/libc/sysdeps/linux/common/statfs.c
@@ -13,10 +13,39 @@
#include <sys/vfs.h>
extern __typeof(statfs) __libc_statfs attribute_hidden;
-#define __NR___libc_statfs __NR_statfs
+
+#if defined __NR_statfs64 && !defined __NR_statfs
+
+int __libc_statfs(const char *path, struct statfs *buf)
+{
+ int err = INLINE_SYSCALL(statfs64, 3, path, sizeof(*buf), buf);
+
+ if (err == 0) {
+ /* Did we overflow? */
+ if (buf->__pad1 || buf->__pad2 || buf->__pad3 ||
+ buf->__pad4 || buf->__pad5) {
+ __set_errno(EOVERFLOW);
+ return -1;
+ }
+ }
+
+ return err;
+}
+# if defined __UCLIBC_LINUX_SPECIFIC__ || defined __UCLIBC_HAS_THREADS_NATIVE__
+/* statfs is used by NPTL, so it must exported in case */
+weak_alias(__libc_statfs, statfs)
+# endif
+
+/* For systems which have both, prefer the old one */
+#else
+
+# define __NR___libc_statfs __NR_statfs
_syscall2(int, __libc_statfs, const char *, path, struct statfs *, buf)
-#if defined __UCLIBC_LINUX_SPECIFIC__ || defined __UCLIBC_HAS_THREADS_NATIVE__
+# if defined __UCLIBC_LINUX_SPECIFIC__ || defined __UCLIBC_HAS_THREADS_NATIVE__
/* statfs is used by NPTL, so it must exported in case */
-weak_alias(__libc_statfs,statfs)
+weak_alias(__libc_statfs, statfs)
+# endif
+
#endif
+libc_hidden_def(statfs)