From 8b6a72238c9e0686395f9849a9c00f8762f3a244 Mon Sep 17 00:00:00 2001
From: cloudwalk <cloudwalk@d7cf8633-e32d-0410-b094-e92efae38249>
Date: Sun, 11 Apr 2021 19:23:23 +0000
Subject: [PATCH] image: Sanitize paths on *all* images rather than images
 loaded from Q3 shaders

Implemented FS_SanitizePath. Perhaps expand on this? Not really a clean
way to do it that I can think of, but I can't see the harm in doing this
for all filepaths.

git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@13117 d7cf8633-e32d-0410-b094-e92efae38249
---
 fs.c           | 18 ++++++++++++++++++
 fs.h           |  1 +
 image.c        |  3 +++
 model_shared.c |  5 -----
 4 files changed, 22 insertions(+), 5 deletions(-)

diff --git a/fs.c b/fs.c
index 87c5df4a..182d05f3 100644
--- a/fs.c
+++ b/fs.c
@@ -2507,6 +2507,24 @@ int FS_CheckNastyPath (const char *path, qbool isgamedir)
 	return false;
 }
 
+/*
+====================
+FS_SanitizePath
+
+Sanitize path (replace non-portable characters 
+with portable ones in-place, etc)
+====================
+*/
+void FS_SanitizePath(char *path)
+{
+	int i, size;
+
+	for(i = 0, size = strlen(path); i < size; i++)
+	{
+		if(path[i] == '\\')
+			path[i] = '/';
+	}
+}
 
 /*
 ====================
diff --git a/fs.h b/fs.h
index 5977f8c6..b8ada8b9 100644
--- a/fs.h
+++ b/fs.h
@@ -85,6 +85,7 @@ void FS_Purge (qfile_t* file);
 const char *FS_FileWithoutPath (const char *in);
 const char *FS_FileExtension (const char *in);
 int FS_CheckNastyPath (const char *path, qbool isgamedir);
+void FS_SanitizePath (char *path);
 
 extern const char *const fs_checkgamedir_missing; // "(missing)"
 const char *FS_CheckGameDir(const char *gamedir); // returns NULL if nasty, fs_checkgamedir_missing (exact pointer) if missing
diff --git a/image.c b/image.c
index 9f07ce60..ed498ed6 100644
--- a/image.c
+++ b/image.c
@@ -1084,6 +1084,9 @@ unsigned char *loadimagepixelsbgra (const char *filename, qbool complain, qbool
 	for (format = firstformat;format->formatstring;format++)
 	{
 		dpsnprintf (name, sizeof(name), format->formatstring, basename);
+
+		FS_SanitizePath(name);
+
 		if(FS_FileExists(name) && (f = FS_LoadFile(name, tempmempool, true, &filesize)) != NULL)
 		{
 			mymiplevel = miplevel ? *miplevel : 0;
diff --git a/model_shared.c b/model_shared.c
index 3213a050..f4a1a111 100644
--- a/model_shared.c
+++ b/model_shared.c
@@ -2257,12 +2257,7 @@ texture_shaderpass_t *Mod_CreateShaderPassFromQ3ShaderLayer(mempool_t *mempool,
 	for (j = 0; j < Q3MAXTCMODS && layer->tcmods[j].tcmod != Q3TCMOD_NONE; j++)
 		shaderpass->tcmods[j] = layer->tcmods[j];
 	for (j = 0; j < layer->numframes; j++)
-	{
-		for (int i = 0; layer->texturename[j][i]; i++)
-			if(layer->texturename[j][i] == '\\')
-				layer->texturename[j][i] = '/';
 		shaderpass->skinframes[j] = R_SkinFrame_LoadExternal(layer->texturename[j], texflags, false, true);
-	}
 	return shaderpass;
 }
 
-- 
2.39.2