diff options
| author | Markos Chandras <markos.chandras@imgtec.com> | 2012-10-11 11:58:30 +0100 |
|---|---|---|
| committer | Bernhard Reutner-Fischer <rep.dot.nop@gmail.com> | 2013-02-20 13:45:13 +0100 |
| commit | 09e782b088e77eff01e9b08dd0f5dd4896e9d417 (patch) | |
| tree | 08b2a637194ddcbe85f212f4f10945a59015fa35 /libc/sysdeps/linux/common/fstatfs.c | |
| parent | 13f56c443b697190373d555b25e2577dcd32a3b6 (diff) | |
fstatfs: Add __libc_fstatfs wrapper
New architectures don't have fstatfs anymore, so we use a wrapper for
__libc_fstatfs which will use fstatfs64 internally. The interface however
needs to remain the same (i.e accepting a struct statfs as a second
argument) for backwards compatibility
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/fstatfs.c')
| -rw-r--r-- | libc/sysdeps/linux/common/fstatfs.c | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/libc/sysdeps/linux/common/fstatfs.c b/libc/sysdeps/linux/common/fstatfs.c index fa0024ad8..111a399bc 100644 --- a/libc/sysdeps/linux/common/fstatfs.c +++ b/libc/sysdeps/linux/common/fstatfs.c @@ -9,8 +9,9 @@ #include <sys/syscall.h> #include <sys/vfs.h> +#include <string.h> -#ifndef __USE_FILE_OFFSET64 +#ifndef __USE_FILE_OFFSET64__ extern int fstatfs (int __fildes, struct statfs *__buf) __THROW __nonnull ((2)); #else @@ -23,8 +24,26 @@ extern int __REDIRECT_NTH (fstatfs, (int __fildes, struct statfs *__buf), #endif extern __typeof(fstatfs) __libc_fstatfs attribute_hidden; -#define __NR___libc_fstatfs __NR_fstatfs +#ifdef __NR_fstatfs +# define __NR___libc_fstatfs __NR_fstatfs _syscall2(int, __libc_fstatfs, int, fd, struct statfs *, buf) +#else +int __libc_fstatfs (int __fildes, struct statfs *__buf) +{ + int err = INLINE_SYSCALL(fstatfs64, 3, __fildes, 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; +}; +/* Redefined fstatfs because we need it for backwards compatibility */ +#endif /* __NR_fstatfs */ #if defined __UCLIBC_LINUX_SPECIFIC__ weak_alias(__libc_fstatfs,fstatfs) |