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[Qemu-devel] [PATCHv3 09/20] ppc: avoid buffer overrun: use pstrcpy, not
From: |
Jim Meyering |
Subject: |
[Qemu-devel] [PATCHv3 09/20] ppc: avoid buffer overrun: use pstrcpy, not strncpy |
Date: |
Thu, 4 Oct 2012 13:09:52 +0200 |
From: Jim Meyering <address@hidden>
A terminal NUL is required by caller's use of strchr.
It's better not to use strncpy at all, since there is no need
to zero out hundreds of trailing bytes for each iteration.
Signed-off-by: Jim Meyering <address@hidden>
---
target-ppc/kvm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/target-ppc/kvm.c b/target-ppc/kvm.c
index a31d278..7f6e4e0 100644
--- a/target-ppc/kvm.c
+++ b/target-ppc/kvm.c
@@ -795,7 +795,7 @@ static int read_cpuinfo(const char *field, char *value, int
len)
break;
}
if (!strncmp(line, field, field_len)) {
- strncpy(value, line, len);
+ pstrcpy(value, len, line);
ret = 0;
break;
}
--
1.8.0.rc0.18.gf84667d
- [Qemu-devel] [PATCHv3 01/20] scsi, pci, qdev, isa-bus, sysbus: don't let *_get_fw_dev_path return NULL, (continued)
- [Qemu-devel] [PATCHv3 01/20] scsi, pci, qdev, isa-bus, sysbus: don't let *_get_fw_dev_path return NULL, Jim Meyering, 2012/10/04
- [Qemu-devel] [PATCHv3 02/20] sparc: use g_strdup in place of unchecked strdup, Jim Meyering, 2012/10/04
- [Qemu-devel] [PATCHv3 03/20] block: avoid buffer overrun by using pstrcpy, not strncpy, Jim Meyering, 2012/10/04
- [Qemu-devel] [PATCHv3 05/20] vmdk: relative_path: use pstrcpy in place of strncpy, Jim Meyering, 2012/10/04
- [Qemu-devel] [PATCHv3 06/20] hw/9pfs: avoid buffer overrun, Jim Meyering, 2012/10/04
- [Qemu-devel] [PATCHv3 04/20] sheepdog: avoid a few buffer overruns, Jim Meyering, 2012/10/04
- [Qemu-devel] [PATCHv3 07/20] lm32: avoid buffer overrun, Jim Meyering, 2012/10/04
- [Qemu-devel] [PATCHv3 10/20] linux-user: remove two unchecked uses of strdup, Jim Meyering, 2012/10/04
- [Qemu-devel] [PATCHv3 08/20] os-posix: avoid buffer overrun, Jim Meyering, 2012/10/04
- [Qemu-devel] [PATCHv3 09/20] ppc: avoid buffer overrun: use pstrcpy, not strncpy,
Jim Meyering <=
- [Qemu-devel] [PATCHv3 12/20] bt: replace fragile snprintf use and unwarranted strncpy, Jim Meyering, 2012/10/04
- [Qemu-devel] [PATCHv3 11/20] ui/vnc: simplify and avoid strncpy, Jim Meyering, 2012/10/04
- [Qemu-devel] [PATCHv3 15/20] qemu-ga: prefer pstrcpy: consistently NUL-terminate ifreq.ifr_name, Jim Meyering, 2012/10/04
- [Qemu-devel] [PATCHv3 16/20] libcacard/vcard_emul_nss: use pstrcpy in place of strncpy, Jim Meyering, 2012/10/04
- [Qemu-devel] [PATCHv3 13/20] virtio-9p: avoid unwarranted uses of strncpy, Jim Meyering, 2012/10/04
- [Qemu-devel] [PATCHv3 14/20] vscsi: avoid unwarranted strncpy, Jim Meyering, 2012/10/04
- [Qemu-devel] [PATCHv3 20/20] doc: update HACKING wrt strncpy/pstrcpy, Jim Meyering, 2012/10/04