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Workaround strncpy() in OpenArena QVMs #742

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Workaround strncpy() in OpenArena QVMs #742

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9 changes: 8 additions & 1 deletion code/client/cl_cgame.c
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Original file line number Diff line number Diff line change
Expand Up @@ -618,7 +618,14 @@ intptr_t CL_CgameSystemCalls( intptr_t *args ) {
Com_Memcpy( VMA(1), VMA(2), args[3] );
return 0;
case CG_STRNCPY:
strncpy( VMA(1), VMA(2), args[3] );
{
char *dest = VMA(1);
char *src = VMA(2);

if ( dest != src ) {
strncpy( dest, src, args[3] );
}
}
return args[1];
case CG_SIN:
return FloatAsInt( sin( VMF(1) ) );
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9 changes: 8 additions & 1 deletion code/client/cl_ui.c
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Expand Up @@ -1005,7 +1005,14 @@ intptr_t CL_UISystemCalls( intptr_t *args ) {
return 0;

case UI_STRNCPY:
strncpy( VMA(1), VMA(2), args[3] );
{
char *dest = VMA(1);
char *src = VMA(2);

if ( dest != src ) {
strncpy( dest, src, args[3] );
}
}
return args[1];

case UI_SIN:
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9 changes: 8 additions & 1 deletion code/server/sv_game.c
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Expand Up @@ -809,7 +809,14 @@ intptr_t SV_GameSystemCalls( intptr_t *args ) {
return 0;

case TRAP_STRNCPY:
strncpy( VMA(1), VMA(2), args[3] );
{
char *dest = VMA(1);
char *src = VMA(2);

if ( dest != src ) {
strncpy( dest, src, args[3] );
}
}
return args[1];

case TRAP_SIN:
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