diff options
Diffstat (limited to 'libc/sysdeps/linux/common')
| -rw-r--r-- | libc/sysdeps/linux/common/pread_write.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/libc/sysdeps/linux/common/pread_write.c b/libc/sysdeps/linux/common/pread_write.c index 7955916fe..bf04be41f 100644 --- a/libc/sysdeps/linux/common/pread_write.c +++ b/libc/sysdeps/linux/common/pread_write.c @@ -38,6 +38,7 @@ #include <sys/types.h> #include <sys/syscall.h> #include <unistd.h> +#include <stdint.h> #ifdef __NR_pread @@ -47,15 +48,16 @@ static inline _syscall5(ssize_t, __syscall_pread, int, fd, void *, buf, ssize_t __libc_pread(int fd, void *buf, size_t count, off_t offset) { - return(__syscall_pread(fd,buf,count,__LONG_LONG_PAIR((off_t)0,offset))); + return(__syscall_pread(fd,buf,count,__LONG_LONG_PAIR (offset >> 31, offset))); } weak_alias (__libc_pread, pread) #if defined __UCLIBC_HAS_LFS__ ssize_t __libc_pread64(int fd, void *buf, size_t count, off64_t offset) { - return(__syscall_pread(fd, buf, count, - __LONG_LONG_PAIR((off_t)(offset>>32),(off_t)(offset&0xffffffff)))); + uint32_t low = offset & 0xffffffff; + uint32_t high = offset >> 32; + return(__syscall_pread(fd, buf, count, __LONG_LONG_PAIR (high, low))); } weak_alias (__libc_pread64, pread64) #endif /* __UCLIBC_HAS_LFS__ */ @@ -71,15 +73,16 @@ static inline _syscall5(ssize_t, __syscall_pwrite, int, fd, const void *, buf, ssize_t __libc_pwrite(int fd, const void *buf, size_t count, off_t offset) { - return(__syscall_pwrite(fd,buf,count,__LONG_LONG_PAIR((off_t)0,offset))); + return(__syscall_pwrite(fd,buf,count,__LONG_LONG_PAIR (offset >> 31, offset))); } weak_alias (__libc_pwrite, pwrite) #if defined __UCLIBC_HAS_LFS__ ssize_t __libc_pwrite64(int fd, const void *buf, size_t count, off64_t offset) { - return(__syscall_pwrite(fd, buf, count, - __LONG_LONG_PAIR((off_t)(offset>>32),(off_t)(offset&0xffffffff)))); + uint32_t low = offset & 0xffffffff; + uint32_t high = offset >> 32; + return(__syscall_pwrite(fd, buf, count, __LONG_LONG_PAIR (high, low))); } weak_alias (__libc_pwrite64, pwrite64) #endif /* __UCLIBC_HAS_LFS__ */ |