X-Git-Url: https://diplodocus.org/git/nmh/blobdiff_plain/fccdde7866bf77774afabfdb32370f1123dac2cc..fbd0002a92c15b70b8bfda4c48fff5ded89c7f04:/sbr/concat.c?ds=inline

diff --git a/sbr/concat.c b/sbr/concat.c
index f5cf1aea..b99f0c02 100644
--- a/sbr/concat.c
+++ b/sbr/concat.c
@@ -1,6 +1,4 @@
-
-/*
- * concat.c -- concatenate a variable number (minimum of 1)
+/* concat.c -- concatenate a variable number (minimum of 1)
  *             of strings in managed memory
  *
  * This code is Copyright (c) 2002, by the authors of nmh.  See the
@@ -8,10 +6,16 @@
  * complete copyright information.
  */
 
-#include <h/mh.h>
-#include <h/utils.h>
+#include "h/mh.h"
+#include "concat.h"
+#include "h/utils.h"
 
 
+/* concat returns a non-NULL malloc'd pointer to the catenation of the
+ * argument strings less their NUL terminators other than the last.  The
+ * arguments are terminated by a NULL.
+ *
+ * Example:  concat("abc", "def", "", "g", NULL) returns "abcdefg". */
 char *
 concat (const char *s1, ...)
 {
@@ -27,11 +31,11 @@ concat (const char *s1, ...)
 
     dp = sp = mh_xmalloc(len);
 
-    sp = copy(s1, sp);
+    sp = stpcpy(sp, s1);
 
     va_start(list, s1); 
     while ((cp = va_arg (list, char *)))
-	sp = copy(cp, sp);
+	sp = stpcpy(sp, cp);
     va_end(list);
 
     return dp;