From: riku.voipio@iki.fi
To: qemu-devel@nongnu.org
Subject: [Qemu-devel] [PATCH 09/10] linux-user: fix utimensat with NULL timespec
Date: Wed, 29 Apr 2009 21:03:22 +0300 [thread overview]
Message-ID: <1241028203-19687-9-git-send-email-riku.voipio@iki.fi> (raw)
In-Reply-To: <1241028203-19687-1-git-send-email-riku.voipio@iki.fi>
From: Riku Voipio <riku.voipio@iki.fi>
don't try to copy timespec from user if is NULL.
Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
---
linux-user/syscall.c | 15 ++++++++++-----
1 files changed, 10 insertions(+), 5 deletions(-)
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index f99db77..be00c7e 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -6674,17 +6674,22 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
#if defined(TARGET_NR_utimensat) && defined(__NR_utimensat)
case TARGET_NR_utimensat:
{
- struct timespec ts[2];
- target_to_host_timespec(ts, arg3);
- target_to_host_timespec(ts+1, arg3+sizeof(struct target_timespec));
+ struct timespec *tsp, ts[2];
+ if (!arg3) {
+ tsp = NULL;
+ } else {
+ target_to_host_timespec(ts, arg3);
+ target_to_host_timespec(ts+1, arg3+sizeof(struct target_timespec));
+ tsp = ts;
+ }
if (!arg2)
- ret = get_errno(sys_utimensat(arg1, NULL, ts, arg4));
+ ret = get_errno(sys_utimensat(arg1, NULL, tsp, arg4));
else {
if (!(p = lock_user_string(arg2))) {
ret = -TARGET_EFAULT;
goto fail;
}
- ret = get_errno(sys_utimensat(arg1, path(p), ts, arg4));
+ ret = get_errno(sys_utimensat(arg1, path(p), tsp, arg4));
unlock_user(p, arg2, 0);
}
}
--
1.6.2.1
next prev parent reply other threads:[~2009-04-29 18:03 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-29 18:03 [Qemu-devel] [PATCH 01/10] export mmap_find_vma for shmat riku.voipio
2009-04-29 18:03 ` [Qemu-devel] [PATCH 02/10] Implement shm* syscalls and fix 64/32bit errors riku.voipio
2009-04-29 18:03 ` [Qemu-devel] [PATCH 03/10] linux-user: implemented ELF coredump support for ARM target [v2] riku.voipio
2009-04-29 18:03 ` [Qemu-devel] [PATCH 04/10] linux-user: added x86 and x86_64 support for ELF coredump riku.voipio
2009-04-29 18:03 ` [Qemu-devel] [PATCH 05/10] linux-user: strace now handles guest strings correctly riku.voipio
2009-04-29 18:03 ` [Qemu-devel] [PATCH 06/10] Revived GUEST_BASE support for usermode emulation targets [v2] riku.voipio
2009-04-29 19:50 ` malc
2009-05-05 13:27 ` [Qemu-devel] [PATCH] Revived GUEST_BASE support for usermode emulation targets [v3] Riku Voipio
2009-05-05 13:53 ` Paul Brook
2009-05-05 14:18 ` Riku Voipio
2009-05-05 14:34 ` Paul Brook
2009-05-05 18:02 ` malc
2009-05-05 20:46 ` [Qemu-devel] [PATCH] Revived GUEST_BASE support for usermode emulation targets [v4] Riku Voipio
2009-05-15 2:25 ` Paul Brook
2009-05-15 8:41 ` Martin Mohring
2009-05-15 9:50 ` Paul Brook
2009-05-15 9:57 ` Riku Voipio
2009-05-15 10:02 ` Paul Brook
2009-05-15 10:09 ` Paul Brook
2009-05-15 12:07 ` malc
2009-05-15 10:12 ` Martin Mohring
2009-05-15 14:13 ` Riku Voipio
2009-05-15 15:25 ` Martin Mohring
2009-04-30 7:07 ` [Qemu-devel] [PATCH 06/10] Revived GUEST_BASE support for usermode emulation targets [v2] Martin Mohring
2009-04-29 18:03 ` [Qemu-devel] [PATCH 07/10] linux-user: fix utimensat when used as futimens riku.voipio
2009-04-29 18:03 ` [Qemu-devel] [PATCH 08/10] Fix struct termios host - target translation riku.voipio
2009-04-29 18:03 ` riku.voipio [this message]
2009-04-29 18:03 ` [Qemu-devel] [PATCH 10/10] Return EOPNOTSUPP instead of ENOSYS for *xattr* syscalls riku.voipio
2009-04-30 7:09 ` [Qemu-devel] [PATCH 01/10] export mmap_find_vma for shmat Martin Mohring
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