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authorKarl Berry <karl@freefriends.org>2017-11-03 22:50:57 +0000
committerKarl Berry <karl@freefriends.org>2017-11-03 22:50:57 +0000
commitd280e23580526277e20890e40d6551dd390851f4 (patch)
treeabbed1ab83338c075cdc54ae076526266f590a20 /Build/source/texk/kpathsea/kdefault.c
parent753ccf29ee3c32686dbe1cb4ada792d0f26ec429 (diff)
checks for empty program name, empty default strings
git-svn-id: svn://tug.org/texlive/trunk@45684 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Build/source/texk/kpathsea/kdefault.c')
-rw-r--r--Build/source/texk/kpathsea/kdefault.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/Build/source/texk/kpathsea/kdefault.c b/Build/source/texk/kpathsea/kdefault.c
index bc25a5c2023..a0fc268eec3 100644
--- a/Build/source/texk/kpathsea/kdefault.c
+++ b/Build/source/texk/kpathsea/kdefault.c
@@ -3,7 +3,7 @@
make a program `default' from it, since we have a target `default';
and OSF/1 make doesn't understand .PHONY.)
- Copyright 1993, 1994, 1996, 2008, 2009, 2011 Karl Berry.
+ Copyright 1993, 1994, 1996, 2008, 2009, 2011, 2017 Karl Berry.
Copyright 2002, 2005 Olaf Weber.
This library is free software; you can redistribute it and/or
@@ -34,12 +34,13 @@ kpathsea_expand_default (kpathsea kpse, const_string path,
{
unsigned path_length;
string expansion;
- (void)kpse; /* currenty not used */
+
+ (void) kpse; /* unused */
/* The default path better not be null. */
assert (fallback);
- if (path == NULL)
+ if (path == NULL || *path == 0)
expansion = xstrdup (fallback);
/* Solitary or leading :? */