[src/trunk]: src/usr.bin/make make(1): fix integer type in str_concat

[rillig <rillig%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/70dd182c6bc2
branches:  trunk
changeset: 937176:70dd182c6bc2
user:      rillig <rillig%NetBSD.org@localhost>
date:      Mon Aug 10 19:20:33 2020 +0000

description:
make(1): fix integer type in str_concat

diffstat:

 usr.bin/make/str.c |  21 +++++++--------------
 1 files changed, 7 insertions(+), 14 deletions(-)

diffs (55 lines):

diff -r 4c0544f1333f -r 70dd182c6bc2 usr.bin/make/str.c
--- a/usr.bin/make/str.c        Mon Aug 10 18:40:24 2020 +0000
+++ b/usr.bin/make/str.c        Mon Aug 10 19:20:33 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: str.c,v 1.56 2020/08/09 10:24:02 rillig Exp $  */
+/*     $NetBSD: str.c,v 1.57 2020/08/10 19:20:33 rillig Exp $  */
 
 /*-
  * Copyright (c) 1988, 1989, 1990, 1993
@@ -69,14 +69,14 @@
  */
 
 #ifndef MAKE_NATIVE
-static char rcsid[] = "$NetBSD: str.c,v 1.56 2020/08/09 10:24:02 rillig Exp $";
+static char rcsid[] = "$NetBSD: str.c,v 1.57 2020/08/10 19:20:33 rillig Exp $";
 #else
 #include <sys/cdefs.h>
 #ifndef lint
 #if 0
 static char     sccsid[] = "@(#)str.c  5.8 (Berkeley) 6/1/90";
 #else
-__RCSID("$NetBSD: str.c,v 1.56 2020/08/09 10:24:02 rillig Exp $");
+__RCSID("$NetBSD: str.c,v 1.57 2020/08/10 19:20:33 rillig Exp $");
 #endif
 #endif                         /* not lint */
 #endif
@@ -85,8 +85,7 @@
 
 /*-
  * str_concat --
- *     concatenate the two strings, inserting a space or slash between them,
- *     freeing them if requested.
+ *     concatenate the two strings, inserting a space or slash between them.
  *
  * returns --
  *     the resulting string in allocated space.
@@ -94,15 +93,9 @@
 char *
 str_concat(const char *s1, const char *s2, int flags)
 {
-       int len1, len2;
-       char *result;
-
-       /* get the length of both strings */
-       len1 = strlen(s1);
-       len2 = strlen(s2);
-
-       /* allocate length plus separator plus EOS */
-       result = bmake_malloc((unsigned int)(len1 + len2 + 2));
+       size_t len1 = strlen(s1);
+       size_t len2 = strlen(s2);
+       char *result = bmake_malloc(len1 + 1 + len2 + 1);
 
        /* copy first string into place */
        memcpy(result, s1, len1);