/* $XFree86: xc/programs/xtrap/XEKeybCtrl.c,v 1.1 2001/11/02 23:29:34 dawes Exp $ */ /***************************************************************************** Copyright 1987, 1988, 1989, 1990, 1991, 1992 by Digital Equipment Corp., Maynard, MA Permission to use, copy, modify, and distribute this software and its documentation for any purpose and without fee is hereby granted, provided that the above copyright notice appear in all copies and that both that copyright notice and this permission notice appear in supporting documentation, and that the name of Digital not be used in advertising or publicity pertaining to distribution of the software without specific, written prior permission. DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. *****************************************************************************/ /* * * CONTRIBUTORS: * * Dick Annicchiarico * Robert Chesler * Dan Coutu * Gene Durso * Marc Evans * Alan Jamison * Mark Henry * Ken Miller * */ #ifndef vms #include <signal.h> #else #include <descrip.h> /* Character string descriptors */ #include <dvidef.h> /* GETDVI item codes */ #include <devdef.h> /* device independent codes */ #include <iodef.h> /* I/O function codes */ #include <psldef.h> /* PSL definitions */ #include <ssdef.h> /* System service codes */ #include <stsdef.h> /* System status masks and codes */ #include <ttdef.h> /* Terminal specific I/O defs */ #include <tt2def.h> /* Terminal specific I/O defs */ #define CTRL_USER_MODE 3 /*----------* * Macros * *----------*/ #define $CheckStatus(status)\ if (!(status & 1)) return(status); /* Allocate a quadword aligned VMS descriptor. * NOTE: This supersedes the $DESCRIPTOR macro in DESCRIP.H. * The only difference is the _align(QUADWORD) term. */ #define $DESCRIPTOR_Q(name, string)\ struct dsc$descriptor_s _align (QUADWORD) name = \ { sizeof(string)-1, DSC$K_DTYPE_T, DSC$K_CLASS_S, string } /*---------------------* * Data Declarations * *---------------------*/ static $DESCRIPTOR_Q (sys_input, "SYS$INPUT:"); static unsigned short comm_chan, /* Communication channel */ comm_iosb[4]; /* I/O status block */ static struct getdvi_itmlst_struct { /* $GETDVI item list */ unsigned short int buflen, item_code; unsigned int bufadr, retadr, eol; } _align (LONGWORD) getdvi_itmlst = { sizeof(int), DVI$_DEVCHAR, 0,0,0 }; static unsigned int dvi_characteristics,return_length; static struct exit_handler_blk { unsigned int flink; void (*exit_routine)(); unsigned char arg_cnt; unsigned char null_byte; unsigned short null_word; unsigned int cond_value; } _align (LONGWORD) exit_block; static unsigned int vms_condition; #endif /* vms */ #include <X11/extensions/xtraplib.h> #include <X11/extensions/xtraplibp.h> #include "XEKeybCtrl.h" int XEEnableCtrlKeys(void (*rtn)(int)) { #ifndef vms signal(SIGINT, rtn); /* CTRL-C */ return(1L); #else /* vms */ int status; /* * Provide the addresses of the longword to receive device chars * and the return length of the information. */ getdvi_itmlst.bufadr = &dvi_characteristics; getdvi_itmlst.retadr = &return_length; status = SYS$GETDVIW (0, 0, &sys_input, &getdvi_itmlst, 0, 0, 0, 0); $CheckStatus(status); /* If we have a terminal device, enable control-c and control-y */ if (dvi_characteristics & DEV$M_TRM) { /* Assign a channel to the communication device. */ status = SYS$ASSIGN ( &sys_input, /* Device name */ &comm_chan, /* Channel returned */ 0, 0 ); $CheckStatus(status); status = XEEnableCtrlC(rtn); $CheckStatus(status); status = XEEnableCtrlY(rtn); $CheckStatus(status); } return (SS$_NORMAL); #endif /* vms */ } int XEClearCtrlKeys(void) { #ifndef vms signal(SIGINT, SIG_DFL); /* CTRL-C */ return(1L); #else /* vms */ int status; if (dvi_characteristics & DEV$M_TRM) { status = SYS$DASSGN(comm_chan); $CheckStatus(status); } return (SS$_NORMAL); #endif /* vms */ } int XEEnableCtrlC(void (*rtn)(int)) { #ifndef vms signal(SIGINT, rtn); /* CTRL-C */ return(1); #else int status; status = SYS$QIOW ( 0, /* Now set the characteristics */ comm_chan, /* Channel */ IO$_SETMODE|IO$M_CTRLCAST, /* Set ctrl_c */ comm_iosb, /* iosb address */ 0, 0, /* */ rtn, 0, /* AST routine and param */ CTRL_USER_MODE, 0, 0, 0 ); $CheckStatus(status); return (SS$_NORMAL); #endif /* vms */ } int XEEnableCtrlY(void (*rtn)(int)) { #ifndef vms signal(SIGQUIT,rtn); /* CTRL-backslash */ return(1); #else /* vms */ int status; status = SYS$QIOW ( 0, /* Set characteristics */ comm_chan, /* Channel */ IO$_SETMODE|IO$M_CTRLYAST, /* Set ctrl_y */ comm_iosb, /* iosb address */ 0, 0, /* */ rtn, 0, /* AST routine and param */ CTRL_USER_MODE, 0, 0, 0 ); $CheckStatus(status); return (SS$_NORMAL); #endif /* vms */ } int XEDeclExitHndlr(void (*rtn)(int)) { #ifndef vms return(1); /* no real way for U*IX to do this */ #else /* vms */ int status; /* * The Exit handler routine must accept one argument. * This argument will be the condition that signaled the * the exit handler. */ exit_block.exit_routine = rtn; exit_block.arg_cnt = 1; /* The condition code is the first argument */ exit_block.cond_value = &vms_condition; /* Address of condition value written by VMS */ status = SYS$DCLEXH (&exit_block); /* Set up the condition handler */ $CheckStatus(status); return (SS$_NORMAL); #endif /* vms */ }