[src/trunk]: src/usr.bin/make make(1): clean up getTmpdir

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

details:   https://anonhg.NetBSD.org/src/rev/38fb37c9989d
branches:  trunk
changeset: 978279:38fb37c9989d
user:      rillig <rillig%NetBSD.org@localhost>
date:      Sun Nov 15 09:38:44 2020 +0000

description:
make(1): clean up getTmpdir

Reduce indentation, structure code into paragraphs.

diffstat:

 usr.bin/make/main.c |  28 +++++++++++++---------------
 1 files changed, 13 insertions(+), 15 deletions(-)

diffs (51 lines):

diff -r 04c413935b9b -r 38fb37c9989d usr.bin/make/main.c
--- a/usr.bin/make/main.c       Sun Nov 15 09:33:50 2020 +0000
+++ b/usr.bin/make/main.c       Sun Nov 15 09:38:44 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: main.c,v 1.472 2020/11/15 09:33:50 rillig Exp $        */
+/*     $NetBSD: main.c,v 1.473 2020/11/15 09:38:44 rillig Exp $        */
 
 /*
  * Copyright (c) 1988, 1989, 1990, 1993
@@ -109,7 +109,7 @@
 #include "trace.h"
 
 /*     "@(#)main.c     8.3 (Berkeley) 3/19/94" */
-MAKE_RCSID("$NetBSD: main.c,v 1.472 2020/11/15 09:33:50 rillig Exp $");
+MAKE_RCSID("$NetBSD: main.c,v 1.473 2020/11/15 09:38:44 rillig Exp $");
 #if defined(MAKE_NATIVE) && !defined(lint)
 __COPYRIGHT("@(#) Copyright (c) 1988, 1989, 1990, 1993 "
            "The Regents of the University of California.  "
@@ -2174,21 +2174,19 @@
 getTmpdir(void)
 {
        static char *tmpdir = NULL;
+       struct stat st;
 
-       if (tmpdir == NULL) {
-               struct stat st;
+       if (tmpdir != NULL)
+               return tmpdir;
 
-               /*
-                * Honor $TMPDIR but only if it is valid.
-                * Ensure it ends with /.
-                */
-               (void)Var_Subst("${TMPDIR:tA:U" _PATH_TMP "}/", VAR_GLOBAL,
-                   VARE_WANTRES, &tmpdir);
-               /* TODO: handle errors */
-               if (stat(tmpdir, &st) < 0 || !S_ISDIR(st.st_mode)) {
-                       free(tmpdir);
-                       tmpdir = bmake_strdup(_PATH_TMP);
-               }
+       /* Honor $TMPDIR but only if it is valid. Ensure it ends with '/'. */
+       (void)Var_Subst("${TMPDIR:tA:U" _PATH_TMP "}/",
+           VAR_GLOBAL, VARE_WANTRES, &tmpdir);
+       /* TODO: handle errors */
+
+       if (stat(tmpdir, &st) < 0 || !S_ISDIR(st.st_mode)) {
+               free(tmpdir);
+               tmpdir = bmake_strdup(_PATH_TMP);
        }
        return tmpdir;
 }