2 files changed, 91 insertions, 0 deletions
diff --git a/src/qcommon/q_shared.c b/src/qcommon/q_shared.c
index 07e3669c..5b74badd 100644
--- a/src/qcommon/q_shared.c
+++ b/src/qcommon/q_shared.c
@@ -1403,3 +1403,82 @@ char *Com_SkipTokens( char *s, int numTokens, char *sep )
 	else
 		return s;
 }
+
+/*
+============
+Com_ClientListContains
+============
+*/
+qboolean Com_ClientListContains( const clientList_t *list, int clientNum )
+{
+  if( clientNum < 0 || clientNum >= MAX_CLIENTS || !list )
+    return qfalse;
+  if( clientNum < 32 )
+    return ( ( list->lo & ( 1 << clientNum ) ) != 0 );
+  else
+    return ( ( list->hi & ( 1 << ( clientNum - 32 ) ) ) != 0 );
+}
+
+/*
+============
+Com_ClientListAdd
+============
+*/
+void Com_ClientListAdd( clientList_t *list, int clientNum )
+{
+  if( clientNum < 0 || clientNum >= MAX_CLIENTS || !list )
+    return;
+  if( clientNum < 32 )
+    list->lo |= ( 1 << clientNum );
+  else
+    list->hi |= ( 1 << ( clientNum - 32 ) );
+}
+
+/*
+============
+Com_ClientListRemove
+============
+*/
+void Com_ClientListRemove( clientList_t *list, int clientNum )
+{
+  if( clientNum < 0 || clientNum >= MAX_CLIENTS || !list )
+    return;
+  if( clientNum < 32 )
+    list->lo &= ~( 1 << clientNum );
+  else
+    list->hi &= ~( 1 << ( clientNum - 32 ) );
+}
+
+/*
+============
+Com_ClientListString
+============
+*/
+char *Com_ClientListString( const clientList_t *list )
+{
+  static char s[ 17 ];
+
+  s[ 0 ] = '\0';
+  if( !list )
+    return s;
+  Com_sprintf( s, sizeof( s ), "%08x%08x", list->hi, list->lo );
+  return s;
+}
+
+/*
+============
+Com_ClientListParse
+============
+*/
+void Com_ClientListParse( clientList_t *list, const char *s )
+{
+  if( !list )
+    return;
+  list->lo = 0;
+  list->hi = 0;
+  if( !s )
+    return;
+  if( strlen( s ) != 16 )
+    return;
+  sscanf( s, "%x%x", &list->hi, &list->lo );
+}
diff --git a/src/qcommon/q_shared.h b/src/qcommon/q_shared.h
index 64acc8d0..5aaf0878 100644
--- a/src/qcommon/q_shared.h
+++ b/src/qcommon/q_shared.h
@@ -739,6 +739,18 @@ char *Com_SkipCharset( char *s, char *sep );
 
 void Com_RandomBytes( byte *string, int len );
 
+typedef struct 
+{
+  unsigned int hi;
+  unsigned int lo;
+} clientList_t;
+
+qboolean Com_ClientListContains( const clientList_t *list, int clientNum );
+void Com_ClientListAdd( clientList_t *list, int clientNum );
+void Com_ClientListRemove( clientList_t *list, int clientNum );
+char *Com_ClientListString( const clientList_t *list );
+void Com_ClientListParse( clientList_t *list, const char *s );
+
 // mode parm for FS_FOpenFile
 typedef enum {
 	FS_READ,