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[nmh] / sbr / concat.c

diff --git a/sbr/concat.c b/sbr/concat.c
index f5cf1aea816478e5effcf71546d6551f09d984ae..afe48206b1090ebf19db15bdbce7ae461251a45d 100644 (file)
--- a/sbr/concat.c
+++ b/sbr/concat.c
@@ -12,6 +12,11 @@
 #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 +32,11 @@ 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;