r7936: new ldb_dn_explode and ldb_dn_casefold functions and co

source/lib/talloc/talloc.c

@@ -917,6 +917,28 @@ char *talloc_strdup(const void *t, const char *p)
 	return ret;
 }
 
+/*
+ append to a talloced string 
+*/
+char *talloc_append_string(const void *t, char *orig, const char *append)
+{
+	char *ret;
+	size_t olen = strlen(orig);
+	size_t alenz = strlen(append) + 1;
+
+	if (!append)
+		return orig;
+
+	ret = talloc_realloc(t, orig, char, olen + alenz);
+	if (!ret)
+		return NULL;
+
+	/* append the string with the trailing \0 */
+	memcpy(&ret[olen], append, alenz);
+
+	return ret;
+}
+
 /*
   strndup with a talloc 
 */