diff options
| -rw-r--r-- | linux-user/syscall.c | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/linux-user/syscall.c b/linux-user/syscall.c index 1c31218186..21f559ebc6 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -1727,6 +1727,8 @@ static long do_fcntl(int fd, int cmd, target_ulong arg) { struct flock fl; struct target_flock *target_fl; + struct flock64 fl64; + struct target_flock64 *target_fl64; long ret; switch(cmd) { @@ -1756,10 +1758,27 @@ static long do_fcntl(int fd, int cmd, target_ulong arg) break; case TARGET_F_GETLK64: + ret = fcntl(fd, cmd >> 1, &fl64); + if (ret == 0) { + lock_user_struct(target_fl64, arg, 0); + target_fl64->l_type = tswap16(fl64.l_type) >> 1; + target_fl64->l_whence = tswap16(fl64.l_whence); + target_fl64->l_start = tswapl(fl64.l_start); + target_fl64->l_len = tswapl(fl64.l_len); + target_fl64->l_pid = tswapl(fl64.l_pid); + unlock_user_struct(target_fl64, arg, 1); + } + break; case TARGET_F_SETLK64: case TARGET_F_SETLKW64: - ret = -1; - errno = EINVAL; + lock_user_struct(target_fl64, arg, 1); + fl64.l_type = tswap16(target_fl64->l_type) >> 1; + fl64.l_whence = tswap16(target_fl64->l_whence); + fl64.l_start = tswapl(target_fl64->l_start); + fl64.l_len = tswapl(target_fl64->l_len); + fl64.l_pid = tswap16(target_fl64->l_pid); + unlock_user_struct(target_fl64, arg, 0); + ret = fcntl(fd, cmd >> 1, &fl64); break; case F_GETFL: |