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authorRong-En Fan <rafan@FreeBSD.org>2008-11-09 09:06:04 +0000
committerRong-En Fan <rafan@FreeBSD.org>2008-11-09 09:06:04 +0000
commita388f199193767bacbb38b172ab89cb84369736c (patch)
treea1816f5667d2280b970ca44e407bac8cc4496c0a /ncurses/tinfo/lib_baudrate.c
parentaa59d4d4c5dda7e1c6f9dc0cc6edc58992a525c7 (diff)
downloadsrc-a388f199193767bacbb38b172ab89cb84369736c.tar.gz
src-a388f199193767bacbb38b172ab89cb84369736c.zip
- Flatten the vendor area
Notes
Notes: svn path=/vendor/ncurses/dist/; revision=184786
Diffstat (limited to 'ncurses/tinfo/lib_baudrate.c')
-rw-r--r--ncurses/tinfo/lib_baudrate.c235
1 files changed, 235 insertions, 0 deletions
diff --git a/ncurses/tinfo/lib_baudrate.c b/ncurses/tinfo/lib_baudrate.c
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+++ b/ncurses/tinfo/lib_baudrate.c
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+/****************************************************************************
+ * Copyright (c) 1998-2006,2007 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 *
+ * "Software"), to deal in the Software without restriction, including *
+ * without limitation the rights to use, copy, modify, merge, publish, *
+ * distribute, distribute with modifications, sublicense, and/or sell *
+ * copies of the Software, and to permit persons to whom the Software is *
+ * furnished to do so, subject to the following conditions: *
+ * *
+ * The above copyright notice and this permission notice shall be included *
+ * in all copies or substantial portions of the Software. *
+ * *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
+ * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
+ * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
+ * *
+ * Except as contained in this notice, the name(s) of the above copyright *
+ * holders shall not be used in advertising or otherwise to promote the *
+ * sale, use or other dealings in this Software without prior written *
+ * authorization. *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
+ * and: Eric S. Raymond <esr@snark.thyrsus.com> *
+ * and: Thomas E. Dickey 1996-on *
+ ****************************************************************************/
+
+/*
+ * lib_baudrate.c
+ *
+ */
+
+#include <curses.priv.h>
+#include <term.h> /* cur_term, pad_char */
+#include <termcap.h> /* ospeed */
+#if defined(__FreeBSD__)
+#include <sys/param.h>
+#endif
+
+/*
+ * These systems use similar header files, which define B1200 as 1200, etc.,
+ * but can be overridden by defining USE_OLD_TTY so B1200 is 9, which makes all
+ * of the indices up to B115200 fit nicely in a 'short', allowing us to retain
+ * ospeed's type for compatibility.
+ */
+#if (defined(__FreeBSD__) && (__FreeBSD_version < 700000)) || defined(__NetBSD__) || defined(__OpenBSD__)
+#undef B0
+#undef B50
+#undef B75
+#undef B110
+#undef B134
+#undef B150
+#undef B200
+#undef B300
+#undef B600
+#undef B1200
+#undef B1800
+#undef B2400
+#undef B4800
+#undef B9600
+#undef B19200
+#undef EXTA
+#undef B38400
+#undef EXTB
+#undef B57600
+#undef B115200
+#undef B230400
+#undef B460800
+#undef B921600
+#define USE_OLD_TTY
+#include <sys/ttydev.h>
+#else
+#undef USE_OLD_TTY
+#endif /* USE_OLD_TTY */
+
+MODULE_ID("$Id: lib_baudrate.c,v 1.25 2007/10/20 15:00:41 Rong-En.Fan Exp $")
+
+/*
+ * int
+ * baudrate()
+ *
+ * Returns the current terminal's baud rate.
+ *
+ */
+
+struct speed {
+ int s; /* value for 'ospeed' is an index */
+ int sp; /* the actual speed */
+};
+
+static struct speed const speeds[] =
+{
+ {B0, 0},
+ {B50, 50},
+ {B75, 75},
+ {B110, 110},
+ {B134, 134},
+ {B150, 150},
+ {B200, 200},
+ {B300, 300},
+ {B600, 600},
+ {B1200, 1200},
+ {B1800, 1800},
+ {B2400, 2400},
+ {B4800, 4800},
+ {B9600, 9600},
+#ifdef B19200
+ {B19200, 19200},
+#else
+#ifdef EXTA
+ {EXTA, 19200},
+#endif
+#endif
+#ifdef B38400
+ {B38400, 38400},
+#else
+#ifdef EXTB
+ {EXTB, 38400},
+#endif
+#endif
+#ifdef B57600
+ {B57600, 57600},
+#endif
+#ifdef B115200
+ {B115200, 115200},
+#endif
+#ifdef B230400
+ {B230400, 230400},
+#endif
+#ifdef B460800
+ {B460800, 460800},
+#endif
+#ifdef B921600
+ {B921600, 921600},
+#endif
+};
+
+NCURSES_EXPORT(int)
+_nc_baudrate(int OSpeed)
+{
+#if !USE_REENTRANT
+ static int last_OSpeed;
+ static int last_baudrate;
+#endif
+
+ int result = ERR;
+ unsigned i;
+
+#if !USE_REENTRANT
+ if (OSpeed == last_OSpeed) {
+ result = last_baudrate;
+ }
+#endif
+ if (result == ERR) {
+ if (OSpeed >= 0) {
+ for (i = 0; i < SIZEOF(speeds); i++) {
+ if (speeds[i].s == OSpeed) {
+ result = speeds[i].sp;
+ break;
+ }
+ }
+ }
+#if !USE_REENTRANT
+ if (OSpeed == last_OSpeed) {
+ last_OSpeed = OSpeed;
+ last_baudrate = result;
+ }
+#endif
+ }
+ return (result);
+}
+
+NCURSES_EXPORT(int)
+_nc_ospeed(int BaudRate)
+{
+ int result = 1;
+ unsigned i;
+
+ if (BaudRate >= 0) {
+ for (i = 0; i < SIZEOF(speeds); i++) {
+ if (speeds[i].sp == BaudRate) {
+ result = speeds[i].s;
+ break;
+ }
+ }
+ }
+ return (result);
+}
+
+NCURSES_EXPORT(int)
+baudrate(void)
+{
+ int result;
+
+ T((T_CALLED("baudrate()")));
+
+ /*
+ * In debugging, allow the environment symbol to override when we're
+ * redirecting to a file, so we can construct repeatable test-cases
+ * that take into account costs that depend on baudrate.
+ */
+#ifdef TRACE
+ if (SP && !isatty(fileno(SP->_ofp))
+ && getenv("BAUDRATE") != 0) {
+ int ret;
+ if ((ret = _nc_getenv_num("BAUDRATE")) <= 0)
+ ret = 9600;
+ ospeed = _nc_ospeed(ret);
+ returnCode(ret);
+ }
+#endif
+
+#ifdef USE_OLD_TTY
+ result = cfgetospeed(&cur_term->Nttyb);
+ ospeed = _nc_ospeed(result);
+#else /* !USE_OLD_TTY */
+#ifdef TERMIOS
+ ospeed = cfgetospeed(&cur_term->Nttyb);
+#else
+ ospeed = cur_term->Nttyb.sg_ospeed;
+#endif
+ result = _nc_baudrate(ospeed);
+#endif
+ if (cur_term != 0)
+ cur_term->_baudrate = result;
+
+ returnCode(result);
+}