1 /* $OpenBSD: lib_initscr.c,v 1.2 2001/01/22 18:01:40 millert Exp $ */ 2 3 /**************************************************************************** 4 * Copyright (c) 1998,2000 Free Software Foundation, Inc. * 5 * * 6 * Permission is hereby granted, free of charge, to any person obtaining a * 7 * copy of this software and associated documentation files (the * 8 * "Software"), to deal in the Software without restriction, including * 9 * without limitation the rights to use, copy, modify, merge, publish, * 10 * distribute, distribute with modifications, sublicense, and/or sell * 11 * copies of the Software, and to permit persons to whom the Software is * 12 * furnished to do so, subject to the following conditions: * 13 * * 14 * The above copyright notice and this permission notice shall be included * 15 * in all copies or substantial portions of the Software. * 16 * * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 20 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 21 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 22 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 23 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 24 * * 25 * Except as contained in this notice, the name(s) of the above copyright * 26 * holders shall not be used in advertising or otherwise to promote the * 27 * sale, use or other dealings in this Software without prior written * 28 * authorization. * 29 ****************************************************************************/ 30 31 /**************************************************************************** 32 * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 * 33 * and: Eric S. Raymond <esr@snark.thyrsus.com> * 34 ****************************************************************************/ 35 36 /* 37 ** lib_initscr.c 38 ** 39 ** The routines initscr(), and termname(). 40 ** 41 */ 42 43 #include <curses.priv.h> 44 #include <tic.h> /* for MAX_ALIAS */ 45 46 #if HAVE_SYS_TERMIO_H 47 #include <sys/termio.h> /* needed for ISC */ 48 #endif 49 50 MODULE_ID("$From: lib_initscr.c,v 1.28 2000/12/10 02:43:27 tom Exp $") 51 52 NCURSES_EXPORT(WINDOW *) 53 initscr(void) 54 { 55 static bool initialized = FALSE; 56 NCURSES_CONST char *name; 57 int value; 58 59 T((T_CALLED("initscr()"))); 60 /* Portable applications must not call initscr() more than once */ 61 if (!initialized) { 62 initialized = TRUE; 63 64 if ((name = getenv("TERM")) == 0 65 || *name == '\0') 66 name = "unknown"; 67 if (newterm(name, stdout, stdin) == 0) { 68 fprintf(stderr, "Error opening terminal: %s.\n", name); 69 exit(EXIT_FAILURE); 70 } 71 72 /* allow user to set maximum escape delay from the environment */ 73 if ((value = _nc_getenv_num("ESCDELAY")) >= 0) { 74 ESCDELAY = value; 75 } 76 77 /* def_shell_mode - done in newterm/_nc_setupscreen */ 78 def_prog_mode(); 79 } 80 returnWin(stdscr); 81 } 82