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

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2298 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
ths 2007-01-05 20:55:49 +00:00
parent 4dbb0f5006
commit 43f238d7b6
1 changed files with 21 additions and 2 deletions
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23
linux-user/syscall.c
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@ -1727,6 +1727,8 @@ static long do_fcntl(int fd, int cmd, target_ulong arg)
{ {
struct flock fl; struct flock fl;
struct target_flock *target_fl; struct target_flock *target_fl;
struct flock64 fl64;
struct target_flock64 *target_fl64;
long ret; long ret;
switch(cmd) { switch(cmd) {
@ -1756,10 +1758,27 @@ static long do_fcntl(int fd, int cmd, target_ulong arg)
break; break;
case TARGET_F_GETLK64: 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_SETLK64:
case TARGET_F_SETLKW64: case TARGET_F_SETLKW64:
ret = -1; lock_user_struct(target_fl64, arg, 1);
errno = EINVAL; 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; break;
case F_GETFL: case F_GETFL: