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bsd-user: Implement chown, fchown, lchown and fchownat 

Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Warner Losh 2022-06-14 15:06:59 -06:00
parent 79cfae0c1b
commit 58af3e295c
2 changed files with 64 additions and 0 deletions
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48
bsd-user/bsd-file.h
View File

@ -768,4 +768,52 @@ static abi_long do_bsd_mknodat(void *cpu_env, abi_long arg1,
return ret;
}
/* chown(2) */
static abi_long do_bsd_chown(abi_long arg1, abi_long arg2, abi_long arg3)
{
abi_long ret;
void *p;
LOCK_PATH(p, arg1);
ret = get_errno(chown(p, arg2, arg3)); /* XXX path(p)? */
UNLOCK_PATH(p, arg1);
return ret;
}
/* fchown(2) */
static abi_long do_bsd_fchown(abi_long arg1, abi_long arg2,
abi_long arg3)
{
return get_errno(fchown(arg1, arg2, arg3));
}
/* lchown(2) */
static abi_long do_bsd_lchown(abi_long arg1, abi_long arg2,
abi_long arg3)
{
abi_long ret;
void *p;
LOCK_PATH(p, arg1);
ret = get_errno(lchown(p, arg2, arg3)); /* XXX path(p)? */
UNLOCK_PATH(p, arg1);
return ret;
}
/* fchownat(2) */
static abi_long do_bsd_fchownat(abi_long arg1, abi_long arg2,
abi_long arg3, abi_long arg4, abi_long arg5)
{
abi_long ret;
void *p;
LOCK_PATH(p, arg2);
ret = get_errno(fchownat(arg1, p, arg3, arg4, arg5)); /* XXX path(p)? */
UNLOCK_PATH(p, arg2);
return ret;
}
#endif /* BSD_FILE_H */

16
bsd-user/freebsd/os-syscall.c
View File

@ -431,6 +431,22 @@ static abi_long freebsd_syscall(void *cpu_env, int num, abi_long arg1,
ret = do_bsd_mknodat(cpu_env, arg1, arg2, arg3, arg4, arg5, arg6);
break;
case TARGET_FREEBSD_NR_chown: /* chown(2) */
ret = do_bsd_chown(arg1, arg2, arg3);
break;
case TARGET_FREEBSD_NR_fchown: /* fchown(2) */
ret = do_bsd_fchown(arg1, arg2, arg3);
break;
case TARGET_FREEBSD_NR_lchown: /* lchown(2) */
ret = do_bsd_lchown(arg1, arg2, arg3);
break;
case TARGET_FREEBSD_NR_fchownat: /* fchownat(2) */
ret = do_bsd_fchownat(arg1, arg2, arg3, arg4, arg5);
break;
default:
qemu_log_mask(LOG_UNIMP, "Unsupported syscall: %d\n", num);
ret = -TARGET_ENOSYS;