[Midnightbsd-cvs] src [9320] trunk/libexec/rtld-elf/rtld.c: Properly terminate the result string for intermediate results.

[laffer1 at midnightbsd.org]

Revision: 9320
          http://svnweb.midnightbsd.org/src/?rev=9320
Author:   laffer1
Date:     2017-03-02 19:18:36 -0500 (Thu, 02 Mar 2017)
Log Message:
-----------
Properly terminate the result string for intermediate results.

Modified Paths:
--------------
    trunk/libexec/rtld-elf/rtld.c

Modified: trunk/libexec/rtld-elf/rtld.c
===================================================================
--- trunk/libexec/rtld-elf/rtld.c	2017-03-03 00:18:01 UTC (rev 9319)
+++ trunk/libexec/rtld-elf/rtld.c	2017-03-03 00:18:36 UTC (rev 9320)
@@ -784,7 +784,7 @@
 	/*
 	 * Now, execute the substitution loop.
 	 */
-	for (p = real, resp = res;;) {
+	for (p = real, resp = res, *resp = '\0';;) {
 		p1 = strstr(p, kw);
 		if (p1 != NULL) {
 			/* Copy the prefix before keyword. */
@@ -793,6 +793,7 @@
 			/* Keyword replacement. */
 			memcpy(resp, subst, subst_len);
 			resp += subst_len;
+			*resp = '\0';
 			p = p1 + kw_len;
 		} else
 			break;