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authorths <ths@c046a42c-6fe2-441c-8c8c-71466251a162>2007-09-24 09:23:05 +0000
committerths <ths@c046a42c-6fe2-441c-8c8c-71466251a162>2007-09-24 09:23:05 +0000
commit75ac37a09b585cf3e6e3dd45575b1d8e693dddc5 (patch)
tree55a9e2a6c067f8376f945ce4003c79bfdf221024 /linux-user
parent4472ad0dbd3a0ee26915f259c92e5dddecef060a (diff)
linux-user mknodat() syscall, by Thayne Harbaugh.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3219 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'linux-user')
-rw-r--r--linux-user/syscall.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index c40d66d06d..aa3fb19729 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -143,6 +143,7 @@ type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5,type6 arg6) \
#define __NR_sys_getdents __NR_getdents
#define __NR_sys_getdents64 __NR_getdents64
#define __NR_sys_mkdirat __NR_mkdirat
+#define __NR_sys_mknodat __NR_mknodat
#define __NR_sys_openat __NR_openat
#define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo
#define __NR_sys_syslog __NR_syslog
@@ -171,6 +172,10 @@ _syscall5(int, _llseek, uint, fd, ulong, hi, ulong, lo,
#if defined(TARGET_NR_mkdirat) && defined(__NR_mkdirat)
_syscall3(int,sys_mkdirat,int,dirfd,const char *,pathname,mode_t,mode)
#endif
+#if defined(TARGET_NR_mknodat) && defined(__NR_mknodat)
+_syscall4(int,sys_mknodat,int,dirfd,const char *,pathname,
+ mode_t,mode,dev_t,dev)
+#endif
#if defined(TARGET_NR_openat) && defined(__NR_openat)
_syscall4(int,sys_openat,int,dirfd,const char *,pathname,int,flags,mode_t,mode)
#endif
@@ -2643,6 +2648,21 @@ long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3,
ret = get_errno(mknod(p, arg2, arg3));
unlock_user(p, arg1, 0);
break;
+#if defined(TARGET_NR_mknodat) && defined(__NR_mknodat)
+ case TARGET_NR_mknodat:
+ 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_mknodat(arg1, p, arg3, arg4));
+ if (p)
+ unlock_user(p, arg2, 0);
+ break;
+#endif
case TARGET_NR_chmod:
p = lock_user_string(arg1);
ret = get_errno(chmod(p, arg2));