lib_initscr.c revision 166124
1/**************************************************************************** 2 * Copyright (c) 1998-2003,2005 Free Software Foundation, Inc. * 3 * * 4 * Permission is hereby granted, free of charge, to any person obtaining a * 5 * copy of this software and associated documentation files (the * 6 * "Software"), to deal in the Software without restriction, including * 7 * without limitation the rights to use, copy, modify, merge, publish, * 8 * distribute, distribute with modifications, sublicense, and/or sell * 9 * copies of the Software, and to permit persons to whom the Software is * 10 * furnished to do so, subject to the following conditions: * 11 * * 12 * The above copyright notice and this permission notice shall be included * 13 * in all copies or substantial portions of the Software. * 14 * * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 18 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 21 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 22 * * 23 * Except as contained in this notice, the name(s) of the above copyright * 24 * holders shall not be used in advertising or otherwise to promote the * 25 * sale, use or other dealings in this Software without prior written * 26 * authorization. * 27 ****************************************************************************/ 28 29/**************************************************************************** 30 * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 * 31 * and: Eric S. Raymond <esr@snark.thyrsus.com> * 32 * and: Thomas E. Dickey 1996-2003 * 33 ****************************************************************************/ 34 35/* 36** lib_initscr.c 37** 38** The routines initscr(), and termname(). 39** 40*/ 41 42#include <curses.priv.h> 43 44#if HAVE_SYS_TERMIO_H 45#include <sys/termio.h> /* needed for ISC */ 46#endif 47 48MODULE_ID("$Id: lib_initscr.c,v 1.34 2005/10/22 20:30:38 tom Exp $") 49 50NCURSES_EXPORT(WINDOW *) 51initscr(void) 52{ 53 static bool initialized = FALSE; 54 NCURSES_CONST char *name; 55 56 START_TRACE(); 57 T((T_CALLED("initscr()"))); 58 /* Portable applications must not call initscr() more than once */ 59 if (!initialized) { 60 initialized = TRUE; 61 62 if ((name = getenv("TERM")) == 0 63 || *name == '\0') 64 name = "unknown"; 65#ifdef __CYGWIN__ 66 /* 67 * 2002/9/21 68 * Work around a bug in Cygwin. Full-screen subprocesses run from 69 * bash, in turn spawned from another full-screen process, will dump 70 * core when attempting to write to stdout. Opening /dev/tty 71 * explicitly seems to fix the problem. 72 */ 73 if (isatty(fileno(stdout))) { 74 FILE *fp = fopen("/dev/tty", "w"); 75 if (fp != 0 && isatty(fileno(fp))) { 76 fclose(stdout); 77 dup2(fileno(fp), STDOUT_FILENO); 78 stdout = fdopen(STDOUT_FILENO, "w"); 79 } 80 } 81#endif 82 if (newterm(name, stdout, stdin) == 0) { 83 fprintf(stderr, "Error opening terminal: %s.\n", name); 84 exit(EXIT_FAILURE); 85 } 86 87 /* def_shell_mode - done in newterm/_nc_setupscreen */ 88 def_prog_mode(); 89 } 90 returnWin(stdscr); 91} 92