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List: busybox
Subject: [BusyBox] [httpd] small bugfix for addEnv
From: Rainer Weikusat <rainer.weikusat () sncag ! com>
Date: 2005-02-18 18:40:12
Message-ID: 87vf8p90fn.fsf () farside ! sncag ! com
[Download RAW message or body]
At least according to the Linux-manpage, the value of the pointer is
undefined if an error occurs during asprintf, so checking the return
value is probably a better idea.
Index: busybox//networking/httpd.c
===================================================================
RCS file: /data/repo/busybox/networking/httpd.c,v
retrieving revision 1.3
diff -u -r1.3 httpd.c
--- busybox//networking/httpd.c 17 Feb 2005 21:02:53 -0000 1.3
+++ busybox//networking/httpd.c 18 Feb 2005 18:17:40 -0000
@@ -809,15 +809,14 @@
{
char *s = NULL;
const char *underline;
+ int rc;
if (!value)
value = "";
underline = *name_after_underline ? "_" : "";
- asprintf(&s, "%s%s%s=%s", name_before_underline, underline,
- name_after_underline, value);
- if(s) {
- putenv(s);
- }
+ rc = asprintf(&s, "%s%s%s=%s", name_before_underline, underline,
+ name_after_underline, value);
+ if (rc != -1) putenv(s);
}
#if defined(CONFIG_FEATURE_HTTPD_SET_REMOTE_PORT_TO_ENV) || \
!defined(CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY)
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