1 /**************************************************************************** 2 * Copyright (c) 1998-2009,2014 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 48 MODULE_ID("$Id: lib_initscr.c,v 1.40 2014/04/26 18:47:51 juergen Exp $") 49 50 NCURSES_EXPORT(WINDOW *) 51 initscr(void) 52 { 53 WINDOW *result; 54 55 NCURSES_CONST char *name; 56 57 START_TRACE(); 58 T((T_CALLED("initscr()"))); 59 60 _nc_init_pthreads(); 61 _nc_lock_global(curses); 62 63 /* Portable applications must not call initscr() more than once */ 64 if (!_nc_globals.init_screen) { 65 _nc_globals.init_screen = TRUE; 66 67 if ((name = getenv("TERM")) == 0 68 || *name == '\0') 69 name = "unknown"; 70 #ifdef __CYGWIN__ 71 /* 72 * 2002/9/21 73 * Work around a bug in Cygwin. Full-screen subprocesses run from 74 * bash, in turn spawned from another full-screen process, will dump 75 * core when attempting to write to stdout. Opening /dev/tty 76 * explicitly seems to fix the problem. 77 */ 78 if (NC_ISATTY(fileno(stdout))) { 79 FILE *fp = fopen("/dev/tty", "w"); 80 if (fp != 0 && NC_ISATTY(fileno(fp))) { 81 fclose(stdout); 82 dup2(fileno(fp), STDOUT_FILENO); 83 stdout = fdopen(STDOUT_FILENO, "w"); 84 } 85 } 86 #endif 87 if (newterm(name, stdout, stdin) == 0) { 88 fprintf(stderr, "Error opening terminal: %s.\n", name); 89 exit(EXIT_FAILURE); 90 } 91 92 /* def_shell_mode - done in newterm/_nc_setupscreen */ 93 #if NCURSES_SP_FUNCS 94 NCURSES_SP_NAME(def_prog_mode) (CURRENT_SCREEN); 95 #else 96 def_prog_mode(); 97 #endif 98 } 99 result = stdscr; 100 _nc_unlock_global(curses); 101 102 returnWin(result); 103 } 104