Commit 43f238d7 authored by Thiemo Seufer's avatar Thiemo Seufer
Browse files

Support fcntl F_GETLK64, F_SETLK64, F_SETLKW64, by Kirill A. Shutemov. 


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2298 c046a42c-6fe2-441c-8c8c-71466251a162
parent 4dbb0f50

linux-user/syscall.c

+21 −2
Original line number Diff line number Diff line
@@ -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: