From 840fb4d47b612f53f46ef1bea2fac17a4dcf5ce5 Mon Sep 17 00:00:00 2001
From: Solomon Peachy <pizza@shaftnet.org>
Date: Mon, 11 Jul 2022 19:35:10 -0400
Subject: doom:  Fix a potential buffer trashing in the doom plugin

(caught by GCC12's -Waddress)

Change-Id: I122b44324c60c668ed4a066aa6301d40cb7597ba
---
 apps/plugins/doom/d_deh.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/apps/plugins/doom/d_deh.c b/apps/plugins/doom/d_deh.c
index 1a399e3b49..0a67aa0aad 100644
--- a/apps/plugins/doom/d_deh.c
+++ b/apps/plugins/doom/d_deh.c
@@ -63,7 +63,7 @@ char* strlwr(char* str)
 typedef struct {
     const byte *inp; // Pointer to string
     size_t size;     // Bytes remaining in string
-    int fd;          // Current file descriptor 
+    int fd;          // Current file descriptor
 } DEHFILE;
 
 // killough 10/98: emulate IO whether input really comes from a file or not
@@ -2868,6 +2868,7 @@ boolean deh_GetData(char *s, char *k, uint_64_t *l, char **strval, int fpout)
       if (*t == '=') break;
       buffer[i] = *t;  // copy it
    }
+   if (i == 0) i = 1; /* Just in case */
    buffer[--i] = '\0';  // terminate the key before the '='
    if (!*t)  // end of string with no equal sign
    {
-- 
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