mirrors/qemu
0
0
Fork 0
mirror of https://github.com/qemu/qemu.git synced 2025-01-21 04:53:26 +08:00
Code Issues Packages Projects Releases Wiki Activity

added do_fcntl()

Browse Source 
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@171 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2003-05-14 22:46:48 +00:00
parent 03d843ddf2
commit 7775e9ecc2
1 changed files with 45 additions and 36 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

81
linux-user/syscall.c
View File

@ -1103,6 +1103,49 @@ int do_fork(CPUX86State *env, unsigned int flags, unsigned long newsp)
#endif
static long do_fcntl(int fd, int cmd, unsigned long arg)
{
struct flock fl;
struct target_flock *target_fl = (void *)arg;
long ret;
switch(cmd) {
case TARGET_F_GETLK:
ret = fcntl(fd, cmd, &fl);
if (ret == 0) {
target_fl->l_type = tswap16(fl.l_type);
target_fl->l_whence = tswap16(fl.l_whence);
target_fl->l_start = tswapl(fl.l_start);
target_fl->l_len = tswapl(fl.l_len);
target_fl->l_pid = tswapl(fl.l_pid);
}
break;
case TARGET_F_SETLK:
case TARGET_F_SETLKW:
fl.l_type = tswap16(target_fl->l_type);
fl.l_whence = tswap16(target_fl->l_whence);
fl.l_start = tswapl(target_fl->l_start);
fl.l_len = tswapl(target_fl->l_len);
fl.l_pid = tswapl(target_fl->l_pid);
ret = fcntl(fd, cmd, &fl);
break;
case TARGET_F_GETLK64:
case TARGET_F_SETLK64:
case TARGET_F_SETLKW64:
ret = -1;
errno = EINVAL;
break;
default:
ret = fcntl(fd, cmd, arg);
break;
}
return ret;
}
#define high2lowuid(x) (x)
#define high2lowgid(x) (x)
#define low2highuid(x) (x)
@ -1343,42 +1386,8 @@ long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3,
ret = do_ioctl(arg1, arg2, arg3);
break;
case TARGET_NR_fcntl:
{
struct flock fl;
struct target_flock *target_fl = (void *)arg3;
switch(arg2) {
case TARGET_F_GETLK:
ret = get_errno(fcntl(arg1, arg2, &fl));
if (ret == 0) {
target_fl->l_type = tswap16(fl.l_type);
target_fl->l_whence = tswap16(fl.l_whence);
target_fl->l_start = tswapl(fl.l_start);
target_fl->l_len = tswapl(fl.l_len);
target_fl->l_pid = tswapl(fl.l_pid);
}
break;
case TARGET_F_SETLK:
case TARGET_F_SETLKW:
fl.l_type = tswap16(target_fl->l_type);
fl.l_whence = tswap16(target_fl->l_whence);
fl.l_start = tswapl(target_fl->l_start);
fl.l_len = tswapl(target_fl->l_len);
fl.l_pid = tswapl(target_fl->l_pid);
ret = get_errno(fcntl(arg1, arg2, &fl));
break;
case TARGET_F_GETLK64:
case TARGET_F_SETLK64:
case TARGET_F_SETLKW64:
goto unimplemented;
default:
ret = get_errno(fcntl(arg1, arg2, arg3));
break;
}
ret = get_errno(do_fcntl(arg1, arg2, arg3));
break;
}
case TARGET_NR_mpx:
goto unimplemented;
case TARGET_NR_setpgid:
@ -2373,7 +2382,7 @@ long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3,
ret = get_errno(fcntl(arg1, arg2, &fl));
break;
default:
ret = get_errno(fcntl(arg1, arg2, arg3));
ret = get_errno(do_fcntl(arg1, arg2, arg3));
break;
}
break;