diff options
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) |