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[Qemu-devel] [PATCH 08/22] linux-user: remove two unchecked uses of strd
From: |
Jim Meyering |
Subject: |
[Qemu-devel] [PATCH 08/22] linux-user: remove two unchecked uses of strdup |
Date: |
Wed, 9 May 2012 11:23:52 +0200 |
From: Jim Meyering <address@hidden>
Remove unnecessary and unchecked uses of strdup,
and add a comment that this strncpy use is ok.
Signed-off-by: Jim Meyering <address@hidden>
---
linux-user/elfload.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/linux-user/elfload.c b/linux-user/elfload.c
index f3b1552..25175cc 100644
--- a/linux-user/elfload.c
+++ b/linux-user/elfload.c
@@ -2338,12 +2338,14 @@ static int fill_psinfo(struct target_elf_prpsinfo
*psinfo, const TaskState *ts)
psinfo->pr_uid = getuid();
psinfo->pr_gid = getgid();
- filename = strdup(ts->bprm->filename);
- base_filename = strdup(basename(filename));
+ filename = ts->bprm->filename;
+ base_filename = basename(filename);
+ /*
+ * Using strncpy here is fine: at max-length,
+ * this field is not NUL-terminated.
+ */
(void) strncpy(psinfo->pr_fname, base_filename,
sizeof(psinfo->pr_fname));
- free(base_filename);
- free(filename);
bswap_psinfo(psinfo);
return (0);
--
1.7.10.1.487.ga3935e6
- [Qemu-devel] [PATCH 15/22] target-i386: use pstrcpy, not strncpy, (continued)
- [Qemu-devel] [PATCH 15/22] target-i386: use pstrcpy, not strncpy, Jim Meyering, 2012/05/09
- [Qemu-devel] [PATCH 07/22] ppc: avoid buffer overrun: use pstrcpy, not strncpy, Jim Meyering, 2012/05/09
- [Qemu-devel] [PATCH 02/22] sheepdog: avoid a few buffer overruns, Jim Meyering, 2012/05/09
- [Qemu-devel] [PATCH 14/22] vscsi: avoid unwarranted strncpy, Jim Meyering, 2012/05/09
- [Qemu-devel] [PATCH 20/22] hw/r2d: add comment: this strncpy use is ok, Jim Meyering, 2012/05/09
- [Qemu-devel] [PATCH 04/22] hw/9pfs: avoid buffer overrun, Jim Meyering, 2012/05/09
- [Qemu-devel] [PATCH 08/22] linux-user: remove two unchecked uses of strdup,
Jim Meyering <=
- Re: [Qemu-devel] [PATCH 08/22] linux-user: remove two unchecked uses of strdup, Peter Maydell, 2012/05/09
- Re: [Qemu-devel] [PATCH 08/22] linux-user: remove two unchecked uses of strdup, Jim Meyering, 2012/05/09
- Re: [Qemu-devel] [PATCH 08/22] linux-user: remove two unchecked uses of strdup, Peter Maydell, 2012/05/09
- Re: [Qemu-devel] [PATCH 08/22] linux-user: remove two unchecked uses of strdup, Jim Meyering, 2012/05/09
- Re: [Qemu-devel] [PATCH 08/22] linux-user: remove two unchecked uses of strdup, Peter Maydell, 2012/05/09
- Re: [Qemu-devel] [PATCH 08/22] linux-user: remove two unchecked uses of strdup, Jim Meyering, 2012/05/09
- Re: [Qemu-devel] [PATCH 08/22] linux-user: remove two unchecked uses of strdup, Anthony Liguori, 2012/05/30
- Re: [Qemu-devel] [PATCH 08/22] linux-user: remove two unchecked uses of strdup, Jim Meyering, 2012/05/30
- Re: [Qemu-devel] [PATCH 08/22] linux-user: remove two unchecked uses of strdup, Anthony Liguori, 2012/05/30
- Re: [Qemu-devel] [PATCH 08/22] linux-user: remove two unchecked uses of strdup, Jim Meyering, 2012/05/30