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use safe strings more

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This commit is contained in:
Garux 2021-01-21 18:41:16 +03:00
parent 0ab896b84a
commit b0e62198ba
4 changed files with 8 additions and 12 deletions
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2
tools/quake3/q3map2/bspfile_abstract.cpp
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@ -164,7 +164,7 @@ void SwapBSPFile( void ){
{
if ( doingBSP ){
si = ShaderInfoForShader( bspShaders[ i ].shader );
if ( si->remapShader && si->remapShader[ 0 ] ) {
if ( !strEmptyOrNull( si->remapShader ) ) {
strcpy( bspShaders[ i ].shader, si->remapShader );
}
}

2
tools/quake3/q3map2/convert_map.cpp
View File

@ -835,7 +835,7 @@ for ( i = 0; i < brush->numSides; i++ )
static void ConvertPatch( FILE *f, int num, bspDrawSurface_t *ds, vec3_t origin ){
int x, y;
bspShader_t *shader;
char *texture;
const char *texture;
bspDrawVert_t *dv;
vec3_t xyz;

2
tools/quake3/q3map2/q3map2.h
View File

@ -116,6 +116,8 @@
#define Q3MAP2_EXPERIMENTAL_SNAP_PLANE_FIX 1
/* general */
// actual shader name length limit depends on game engine and name use manner (plain texture/custom shader)
// now checking it for strlen() < MAX_QPATH (so it's null terminated), though this check may be not enough/too much, depending on the use case
#define MAX_QPATH 64
#define MAX_IMAGES 512

14
tools/quake3/q3map2/shaders.cpp
View File

@ -829,7 +829,6 @@ shaderInfo_t *ShaderInfoForShader( const char *shaderName ){
int i;
int deprecationDepth;
shaderInfo_t *si;
char shader[ MAX_QPATH ];
/* dummy check */
if ( strEmptyOrNull( shaderName ) ) {
@ -838,11 +837,7 @@ shaderInfo_t *ShaderInfoForShader( const char *shaderName ){
}
/* strip off extension */
// actual shader name length limit depends on game engine and name use manner (plain texture/custom shader)
// so this check may be not enough/too much, depending on the use case
if( strcpyQ( shader, shaderName, MAX_QPATH ) >= MAX_QPATH )
Error( "Shader name too long: %s", shaderName );
StripExtension( shader );
auto shader = String64()( PathExtensionless( shaderName ) );
/* search for it */
deprecationDepth = 0;
@ -853,12 +848,11 @@ shaderInfo_t *ShaderInfoForShader( const char *shaderName ){
/* check if shader is deprecated */
if ( deprecationDepth < MAX_SHADER_DEPRECATION_DEPTH && !strEmptyOrNull( si->deprecateShader ) ) {
/* override name */
strcpy( shader, si->deprecateShader );
StripExtension( shader );
shader( PathExtensionless( si->deprecateShader ) );
/* increase deprecation depth */
deprecationDepth++;
if ( deprecationDepth == MAX_SHADER_DEPRECATION_DEPTH ) {
Sys_Warning( "Max deprecation depth of %i is reached on shader '%s'\n", MAX_SHADER_DEPRECATION_DEPTH, shader );
Sys_Warning( "Max deprecation depth of %i is reached on shader '%s'\n", MAX_SHADER_DEPRECATION_DEPTH, shader.c_str() );
}
/* search again from beginning */
i = -1;
@ -878,7 +872,7 @@ shaderInfo_t *ShaderInfoForShader( const char *shaderName ){
/* allocate a default shader */
si = AllocShaderInfo();
si->shader << shader;
si->shader = shader;
LoadShaderImages( si );
FinishShader( si );