lolcat: Fix segfault on launch when LANG is undefined

Closes #27
2019-09-25 18:36:54 +02:00 · 2019-09-25 18:36:54 +02:00 · 6e1caef075
commit 6e1caef075
parent 35dca3d0a3
1 changed files with 2 additions and 1 deletions
--- a/lolcat.c
+++ b/lolcat.c
@ -138,7 +138,8 @@ int main(int argc, char** argv)
        inputs_end = inputs + 1;
    }

-    if (force_locale && !strstr(getenv("LANG"), "UTF-8"))
+    char* env_lang = getenv("LANG");
+    if (force_locale && env_lang && !strstr(env_lang, "UTF-8"))
        setlocale(LC_ALL, "C.UTF-8");
    else
        setlocale(LC_ALL, "");