shithub: puzzles

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ref: 35cd44c563ec58e00a89109ef1f5450b08a3faa6
parent: 5c0def1850b2c09af300f09cd48f714f2505d217
author: Simon Tatham <anakin@pobox.com>
date: Sun Apr 23 10:53:11 EDT 2023

make_prefs_path(): tolerate NULL inputs.

Just noticed that if prefs_dir() returns NULL, we'll already have
passed it to this function before the calling functions get round to
checking. I think it's less wordy all round to make this helper
function propagate NULL than to mess about with lots of extra if
statements in between all the calls.

--- a/misc.c

+++ b/misc.c

@@ -511,6 +511,9 @@

     char *path, *p;

     const char *q;

+    if (!dir || !sep || !game || !suffix)

+        return NULL;

+

     path = snewn(dirlen + seplen + gamelen + suffixlen + 1, char);

     p = path;