diff options
Diffstat (limited to 'util-src/windows.c')
| -rw-r--r-- | util-src/windows.c | 26 |
1 files changed, 14 insertions, 12 deletions
diff --git a/util-src/windows.c b/util-src/windows.c index e1e07608..121cc471 100644 --- a/util-src/windows.c +++ b/util-src/windows.c @@ -38,15 +38,16 @@ static int Lget_nameservers(lua_State *L) { } return 1; } else { - luaL_error(L, "DnsQueryConfig returned %d", status); - return 0; // unreachable, but prevents a compiler warning + lua_pushnil(L); + lua_pushfstring(L, "DnsQueryConfig returned %d", status); + return 2; } } -static void lassert(lua_State *L, BOOL test, char* string) { - if (!test) { - luaL_error(L, "%s: %d", string, GetLastError()); - } +static int lerror(lua_State *L, char* string) { + lua_pushnil(L); + lua_pushfstring(L, "%s: %d", string, GetLastError()); + return 2; } static int Lget_consolecolor(lua_State *L) { @@ -55,9 +56,9 @@ static int Lget_consolecolor(lua_State *L) { CONSOLE_SCREEN_BUFFER_INFO info; - lassert(L, console != INVALID_HANDLE_VALUE, "GetStdHandle"); - lassert(L, GetConsoleScreenBufferInfo(console, &info), "GetConsoleScreenBufferInfo"); - lassert(L, ReadConsoleOutputAttribute(console, &color, sizeof(WORD), info.dwCursorPosition, &read_len), "ReadConsoleOutputAttribute"); + if (console == INVALID_HANDLE_VALUE) return lerror(L, "GetStdHandle"); + if (!GetConsoleScreenBufferInfo(console, &info)) return lerror(L, "GetConsoleScreenBufferInfo"); + if (!ReadConsoleOutputAttribute(console, &color, sizeof(WORD), info.dwCursorPosition, &read_len)) return lerror(L, "ReadConsoleOutputAttribute"); lua_pushnumber(L, color); return 1; @@ -65,9 +66,10 @@ static int Lget_consolecolor(lua_State *L) { static int Lset_consolecolor(lua_State *L) { int color = luaL_checkint(L, 1); HWND console = GetStdHandle(STD_OUTPUT_HANDLE); - lassert(L, console != INVALID_HANDLE_VALUE, "GetStdHandle"); - lassert(L, SetConsoleTextAttribute(console, color), "SetConsoleTextAttribute"); - return 0; + if (console == INVALID_HANDLE_VALUE) return lerror(L, "GetStdHandle"); + if (!SetConsoleTextAttribute(console, color)) return lerror(L, "SetConsoleTextAttribute"); + lua_pushboolean(L, 1); + return 1; } static const luaL_Reg Reg[] = |