ncurses 6.4 - patch 20240420

[ncurses.git] / ncurses / tinfo / lib_kernel.c

diff --git a/ncurses/tinfo/lib_kernel.c b/ncurses/tinfo/lib_kernel.c
index 89dc1e80ea8ec39bfb05ac982299f7f84fd73ac4..46f652b0a30a2f6d1ed0cbede036978ecebd91ea 100644 (file)
--- a/ncurses/tinfo/lib_kernel.c
+++ b/ncurses/tinfo/lib_kernel.c
@@ -1,5 +1,6 @@
 /****************************************************************************
- * Copyright (c) 1998-2003,2004 Free Software Foundation, Inc.              *
+ * Copyright 2020-2022,2023 Thomas E. Dickey                                *
+ * Copyright 1998-2009,2010 Free Software Foundation, Inc.                  *
  *                                                                          *
  * Permission is hereby granted, free of charge, to any person obtaining a  *
  * copy of this software and associated documentation files (the            *
@@ -29,7 +30,8 @@
 /****************************************************************************
  *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               *
  *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
- *     and: Thomas E. Dickey 2002                                           *
+ *     and: Thomas E. Dickey                        2002                    *
+ *     and: Juergen Pfeifer                         2009                    *
  ****************************************************************************/
 
 /*
@@ -46,10 +48,10 @@
  */
 
 #include <curses.priv.h>
-#include <term.h>              /* cur_term */
 
-MODULE_ID("$Id: lib_kernel.c,v 1.24 2004/05/08 17:11:21 tom Exp $")
+MODULE_ID("$Id: lib_kernel.c,v 1.36 2023/06/10 13:29:06 tom Exp $")
 
+#ifdef TERMIOS
 static int
 _nc_vdisable(void)
 {
@@ -57,9 +59,9 @@ _nc_vdisable(void)
 #if defined(_POSIX_VDISABLE) && HAVE_UNISTD_H
     value = _POSIX_VDISABLE;
 #endif
-#if defined(_PC_VDISABLE)
+#if defined(_PC_VDISABLE) && HAVE_FPATHCONF
     if (value == -1) {
-       value = fpathconf(0, _PC_VDISABLE);
+       value = (int) fpathconf(0, _PC_VDISABLE);
        if (value == -1) {
            value = 0377;
        }
@@ -70,6 +72,7 @@ _nc_vdisable(void)
 #endif
     return value;
 }
+#endif /* TERMIOS */
 
 /*
  *     erasechar()
@@ -79,23 +82,35 @@ _nc_vdisable(void)
  */
 
 NCURSES_EXPORT(char)
-erasechar(void)
+NCURSES_SP_NAME(erasechar) (NCURSES_SP_DCL0)
 {
     int result = ERR;
-    T((T_CALLED("erasechar()")));
+    TERMINAL *termp = TerminalOf(SP_PARM);
+
+    T((T_CALLED("erasechar(%p)"), (void *) SP_PARM));
 
-    if (cur_term != 0) {
+    if (termp != 0) {
 #ifdef TERMIOS
-       result = cur_term->Ottyb.c_cc[VERASE];
+       result = termp->Ottyb.c_cc[VERASE];
        if (result == _nc_vdisable())
            result = ERR;
+#elif defined(EXP_WIN32_DRIVER)
+       result = ERR;
 #else
-       result = cur_term->Ottyb.sg_erase;
+       result = termp->Ottyb.sg_erase;
 #endif
     }
-    returnCode(result);
+    returnChar((char) result);
 }
 
+#if NCURSES_SP_FUNCS
+NCURSES_EXPORT(char)
+erasechar(void)
+{
+    return NCURSES_SP_NAME(erasechar) (CURRENT_SCREEN);
+}
+#endif
+
 /*
  *     killchar()
  *
@@ -104,51 +119,83 @@ erasechar(void)
  */
 
 NCURSES_EXPORT(char)
-killchar(void)
+NCURSES_SP_NAME(killchar) (NCURSES_SP_DCL0)
 {
     int result = ERR;
-    T((T_CALLED("killchar()")));
+    TERMINAL *termp = TerminalOf(SP_PARM);
+
+    T((T_CALLED("killchar(%p)"), (void *) SP_PARM));
 
-    if (cur_term != 0) {
+    if (termp != 0) {
 #ifdef TERMIOS
-       result = cur_term->Ottyb.c_cc[VKILL];
+       result = termp->Ottyb.c_cc[VKILL];
        if (result == _nc_vdisable())
            result = ERR;
+#elif defined(EXP_WIN32_DRIVER)
+       result = ERR;
 #else
-       result = cur_term->Ottyb.sg_kill;
+       result = termp->Ottyb.sg_kill;
 #endif
     }
-    returnCode(result);
+    returnChar((char) result);
+}
+
+#if NCURSES_SP_FUNCS
+NCURSES_EXPORT(char)
+killchar(void)
+{
+    return NCURSES_SP_NAME(killchar) (CURRENT_SCREEN);
+}
+#endif
+
+static void
+flush_input(int fd)
+{
+#ifdef TERMIOS
+    tcflush(fd, TCIFLUSH);
+#else /* !TERMIOS */
+    errno = 0;
+    do {
+#if defined(EXP_WIN32_DRIVER)
+       _nc_console_flush(_nc_console_fd2handle(fd));
+#else
+       ioctl(fd, TIOCFLUSH, 0);
+#endif
+    } while
+       (errno == EINTR);
+#endif
 }
 
 /*
  *     flushinp()
  *
- *     Flush any input on cur_term->Filedes
- *
+ *     Flush any input on tty
  */
 
 NCURSES_EXPORT(int)
-flushinp(void)
+NCURSES_SP_NAME(flushinp) (NCURSES_SP_DCL0)
 {
-    T((T_CALLED("flushinp()")));
+    T((T_CALLED("flushinp(%p)"), (void *) SP_PARM));
 
-    if (cur_term != 0) {
-#ifdef TERMIOS
-       tcflush(cur_term->Filedes, TCIFLUSH);
-#else
-       errno = 0;
-       do {
-           ioctl(cur_term->Filedes, TIOCFLUSH, 0);
-       } while
-           (errno == EINTR);
-#endif
-       if (SP) {
-           SP->_fifohead = -1;
-           SP->_fifotail = 0;
-           SP->_fifopeek = 0;
+    if (SP_PARM != 0) {
+       if (NC_ISATTY(SP_PARM->_ifd))
+           flush_input(SP_PARM->_ifd);
+       else if (NC_ISATTY(SP_PARM->_ofd))
+           flush_input(SP_PARM->_ofd);
+       if (SP_PARM) {
+           SP_PARM->_fifohead = -1;
+           SP_PARM->_fifotail = 0;
+           SP_PARM->_fifopeek = 0;
        }
        returnCode(OK);
     }
     returnCode(ERR);
 }
+
+#if NCURSES_SP_FUNCS
+NCURSES_EXPORT(int)
+flushinp(void)
+{
+    return NCURSES_SP_NAME(flushinp) (CURRENT_SCREEN);
+}
+#endif