Function FS_SV_FOpenFileRead

code/qcommon/files.cpp:818–892

=========== FS_SV_FOpenFileRead search for a file somewhere below the home path, base path or cd path we search in that order, matching FS_SV_FOpenFileRead order =========== */

===========
*/
int FS_SV_FOpenFileRead( const char *filename, fileHandle_t *fp ) {
	char *ospath;
	fileHandle_t	f = 0;

	FS_AssertInitialised();

	f = FS_HandleForFile();
	fsh[f].zipFile = qfalse;

	Q_strncpyz( fsh[f].name, filename, sizeof( fsh[f].name ) );

	// don't let sound stutter
	S_ClearSoundBuffer();

	// search homepath
	ospath = FS_BuildOSPath( fs_homepath->string, filename, "" );
	// remove trailing slash
	ospath[strlen(ospath)-1] = '\0';

	if ( fs_debug->integer ) {
		Com_Printf( "FS_SV_FOpenFileRead (fs_homepath): %s\n", ospath );
	}

	fsh[f].handleFiles.file.o = fopen( ospath, "rb" );
	fsh[f].handleSync = qfalse;
	if (!fsh[f].handleFiles.file.o)
	{
		// NOTE TTimo on non *nix systems, fs_homepath == fs_basepath, might want to avoid
		if (Q_stricmp(fs_homepath->string,fs_basepath->string))
		{
			// search basepath
			ospath = FS_BuildOSPath( fs_basepath->string, filename, "" );
			ospath[strlen(ospath)-1] = '\0';

			if ( fs_debug->integer )
			{
				Com_Printf( "FS_SV_FOpenFileRead (fs_basepath): %s\n", ospath );
			}

			fsh[f].handleFiles.file.o = fopen( ospath, "rb" );
			fsh[f].handleSync = qfalse;
		}

		if ( !fsh[f].handleFiles.file.o )
		{
			f = 0;
		}
	}

	if (!fsh[f].handleFiles.file.o)
	{
		// search cd path
		ospath = FS_BuildOSPath( fs_cdpath->string, filename, "" );
		ospath[strlen(ospath)-1] = '\0';

		if (fs_debug->integer)
		{
			Com_Printf( "FS_SV_FOpenFileRead (fs_cdpath) : %s\n", ospath );