On Fri, Jan 09, 2009 at 10:05:06AM +0100, Guido Günther wrote:
> On Tue, Jan 06, 2009 at 04:42:15PM +0100, Jim Meyering wrote:
> [..snip..]
> > Thanks!
> > IMHO, committing your patch as-is, and then making the
> > suggested change in a separate change set would be fine.
> > Maybe even a little better, since it's easier to see
> > what's happening when one doesn't mix code-movement
> > changes with "real" changes.
> Does the attached patch look ok? I'll apply this together with
> 0001-split-out-opening-of-the-domain-logfile.patch then.
> -- Guido
Rereading your mail you also suggest using sizeof() instead of PATH_MAX.
Updated patch attached.
-- Guido
>From 6ca6494be05e4834b9469ec1c8a108cefe3ed44f Mon Sep 17 00:00:00 2001
From: =?utf-8?q?Guido=20G=C3=BCnther?= <[email protected]>
Date: Sat, 10 Jan 2009 20:13:39 +0100
Subject: [PATCH] use snprintf
---
src/qemu_driver.c | 19 ++++++++-----------
1 files changed, 8 insertions(+), 11 deletions(-)
diff --git a/src/qemu_driver.c b/src/qemu_driver.c
index d4c56d6..fc73a12 100644
--- a/src/qemu_driver.c
+++ b/src/qemu_driver.c
@@ -149,24 +149,21 @@ qemudLogFD(virConnectPtr conn, const char* logDir, const char* name)
char logfile[PATH_MAX];
mode_t logmode;
uid_t uid = geteuid();
- int fd = -1;
+ int ret, fd = -1;
- if ((strlen(logDir) + /* path */
- 1 + /* Separator */
- strlen(name) + /* basename */
- 4 + /* suffix .log */
- 1 /* NULL */) > PATH_MAX) {
+ if ((ret = snprintf(logfile, sizeof(logfile), "%s/%s.log", logDir, name)) < 0) {
+ qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
+ _("failed to build logfile name %s/%s.log"),
+ logDir, name);
+ return -1;
+ }
+ if (ret >= sizeof(logfile)) {
qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
_("config file path too long: %s/%s.log"),
logDir, name);
return -1;
}
- strcpy(logfile, logDir);
- strcat(logfile, "/");
- strcat(logfile, name);
- strcat(logfile, ".log");
-
logmode = O_CREAT | O_WRONLY;
if (uid != 0)
logmode |= O_TRUNC;
--
1.6.0.3
--
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