1 /* $OpenBSD: lib_initscr.c,v 1.3 2010/01/12 23:22:05 nicm Exp $ */ 2 3 /**************************************************************************** 4 * Copyright (c) 1998-2007,2008 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 * and: Thomas E. Dickey 1996-2003 * 35 ****************************************************************************/ 36 37 /* 38 ** lib_initscr.c 39 ** 40 ** The routines initscr(), and termname(). 41 ** 42 */ 43 44 #include <curses.priv.h> 45 46 #if HAVE_SYS_TERMIO_H 47 #include <sys/termio.h> /* needed for ISC */ 48 #endif 49 50 MODULE_ID("$Id: lib_initscr.c,v 1.3 2010/01/12 23:22:05 nicm Exp $") 51 52 NCURSES_EXPORT(WINDOW *) 53 initscr(void) 54 { 55 WINDOW *result; 56 57 NCURSES_CONST char *name; 58 59 START_TRACE(); 60 T((T_CALLED("initscr()"))); 61 62 _nc_init_pthreads(); 63 _nc_lock_global(curses); 64 65 /* Portable applications must not call initscr() more than once */ 66 if (!_nc_globals.init_screen) { 67 _nc_globals.init_screen = TRUE; 68 69 if ((name = getenv("TERM")) == 0 70 || *name == '\0') 71 name = "unknown"; 72 #ifdef __CYGWIN__ 73 /* 74 * 2002/9/21 75 * Work around a bug in Cygwin. Full-screen subprocesses run from 76 * bash, in turn spawned from another full-screen process, will dump 77 * core when attempting to write to stdout. Opening /dev/tty 78 * explicitly seems to fix the problem. 79 */ 80 if (isatty(fileno(stdout))) { 81 FILE *fp = fopen("/dev/tty", "w"); 82 if (fp != 0 && isatty(fileno(fp))) { 83 fclose(stdout); 84 dup2(fileno(fp), STDOUT_FILENO); 85 stdout = fdopen(STDOUT_FILENO, "w"); 86 } 87 } 88 #endif 89 if (newterm(name, stdout, stdin) == 0) { 90 fprintf(stderr, "Error opening terminal: %s.\n", name); 91 exit(EXIT_FAILURE); 92 } 93 94 /* def_shell_mode - done in newterm/_nc_setupscreen */ 95 def_prog_mode(); 96 } 97 result = stdscr; 98 _nc_unlock_global(curses); 99 100 returnWin(result); 101 } 102