linux-user fchmodat() syscall, by Thayne Harbaugh.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3226 c046a42c-6fe2-441c-8c8c-71466251a162
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 639191f..120b55b 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -139,6 +139,7 @@
#define __NR_sys_uname __NR_uname
+#define __NR_sys_fchmodat __NR_fchmodat
#define __NR_sys_fchownat __NR_fchownat
#define __NR_sys_getcwd1 __NR_getcwd
#define __NR_sys_getdents __NR_getdents
@@ -168,6 +169,10 @@
}
#endif
_syscall1(int,sys_uname,struct new_utsname *,buf)
+#if defined(TARGET_NR_fchmodat) && defined(__NR_fchmodat)
+_syscall4(int,sys_fchmodat,int,dirfd,const char *,pathname,
+ mode_t,mode,int,flags)
+#endif
#if defined(TARGET_NR_fchownat) && defined(__NR_fchownat)
_syscall5(int,sys_fchownat,int,dirfd,const char *,pathname,
uid_t,owner,gid_t,group,int,flags)
@@ -3533,6 +3538,21 @@
case TARGET_NR_fchmod:
ret = get_errno(fchmod(arg1, arg2));
break;
+#if defined(TARGET_NR_fchmodat) && defined(__NR_fchmodat)
+ case TARGET_NR_fchmodat:
+ if (!arg2) {
+ ret = -EFAULT;
+ goto fail;
+ }
+ p = lock_user_string(arg2);
+ if (!access_ok(VERIFY_READ, p, 1))
+ ret = -EFAULT;
+ else
+ ret = get_errno(sys_fchmodat(arg1, p, arg3, arg4));
+ if (p)
+ unlock_user(p, arg2, 0);
+ break;
+#endif
case TARGET_NR_getpriority:
ret = get_errno(getpriority(arg1, arg2));
break;