Merged revisions 101818 via svnmerge from

https://origsvn.digium.com/svn/asterisk/branches/1.4

........
r101818 | russell | 2008-02-01 11:23:47 -0600 (Fri, 01 Feb 2008) | 4 lines

Don't overwrite the last character of a line if it's not a newline.  This would
happen if the last line in the file doesn't have a newline.
(pointed out by Qwell)

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@101819 65c4cc65-6c06-0410-ace0-fbb531ad65f3

apps/app_authenticate.c

@@ -148,6 +148,8 @@ static int auth_exec(struct ast_channel *chan, void *data)
 			}
 
 			for (;;) {
+				size_t len;
+
 				fgets(buf, sizeof(buf), f);
 
 				if (feof(f))
@@ -156,7 +158,9 @@ static int auth_exec(struct ast_channel *chan, void *data)
 				if (ast_strlen_zero(buf))
 					continue;
 
-				buf[strlen(buf) - 1] = '\0';
+				len = strlen(buf) - 1;
+				if (buf[len - 1] = '\n')
+					buf[len - 1] = '\0';
 
 				if (ast_test_flag(&flags, OPT_MULTIPLE)) {
 					md5secret = buf;