From: Karel Zak <kzak@redhat.com>
Date: Tue, 1 Sep 2020 09:50:11 +0000 (+0200)
Subject: pg: fix wcstombs() use
X-Git-Tag: v2.37-rc1~499
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=42fa381b9ddfb17a347d50923b2741fdd48bc300;p=thirdparty%2Futil-linux.git

pg: fix wcstombs() use

The size (3rd) argument should be ignored if the 1st *dest is NULL, but it seems gcc & glibc headers
are more pedantic now:

ext-utils/pg.c:456:13: error: argument 1 is null but the corresponding size argument 3 value is 2048 [-Werror=nonnull]

Signed-off-by: Karel Zak <kzak@redhat.com>
---

diff --git a/text-utils/pg.c b/text-utils/pg.c
index 5d01ebff34..fba7700718 100644
--- a/text-utils/pg.c
+++ b/text-utils/pg.c
@@ -453,7 +453,7 @@ static char *endline_for_mb(unsigned col, char *s)
  ended:
 	*end = L'\0';
 	p = wbuf;
-	if ((pos = wcstombs(NULL, p, READBUF)) == (size_t)-1)
+	if ((pos = wcstombs(NULL, p, 0)) == (size_t)-1)
 		return s + 1;
 	return s + pos;
 }