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new 144d9dff024 libc: add paths.h, sys/ttydefaults.h and termios IUTF8
144d9dff024 is described below
commit 144d9dff024361833b541d6acb22da1b82d93ca4
Author: Xiang Xiao <[email protected]>
AuthorDate: Sat Jul 25 00:08:54 2026 +0800
libc: add paths.h, sys/ttydefaults.h and termios IUTF8
Add commonly required POSIX/BSD interfaces that portable command-line
utilities expect but that were missing from the C library:
- include/paths.h: _PATH_DEFPATH and the other standard default paths.
- include/sys/ttydefaults.h: BSD default control-character and terminal
flag definitions.
- include/termios.h: define the IUTF8 input flag.
Signed-off-by: Xiang Xiao <[email protected]>
---
include/paths.h | 73 +++++++++++++++++++++++++++++++++
include/sys/ttydefaults.h | 102 ++++++++++++++++++++++++++++++++++++++++++++++
include/termios.h | 1 +
3 files changed, 176 insertions(+)
diff --git a/include/paths.h b/include/paths.h
new file mode 100644
index 00000000000..4db48cd62e7
--- /dev/null
+++ b/include/paths.h
@@ -0,0 +1,73 @@
+/****************************************************************************
+ * include/paths.h
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership. The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+#ifndef __INCLUDE_PATHS_H
+#define __INCLUDE_PATHS_H
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/* Default search path. */
+
+#define _PATH_DEFPATH "/usr/bin:/bin"
+
+/* All standard utilities path. */
+
+#define _PATH_STDPATH "/usr/bin:/bin:/usr/sbin:/sbin"
+
+#define _PATH_BSHELL "/bin/sh"
+#define _PATH_CONSOLE "/dev/console"
+#define _PATH_CSHELL "/bin/csh"
+#define _PATH_DEVDB "/var/run/dev.db"
+#define _PATH_DEVNULL "/dev/null"
+#define _PATH_DRUM "/dev/drum"
+#define _PATH_GSHADOW "/etc/gshadow"
+#define _PATH_KLOG "/proc/kmsg"
+#define _PATH_KMEM "/dev/kmem"
+#define _PATH_LASTLOG "/var/log/lastlog"
+#define _PATH_MAILDIR "/var/mail"
+#define _PATH_MAN "/usr/share/man"
+#define _PATH_MEM "/dev/mem"
+#define _PATH_MNTTAB "/etc/fstab"
+#define _PATH_MOUNTED "/etc/mtab"
+#define _PATH_NOLOGIN "/etc/nologin"
+#define _PATH_PRESERVE "/var/lib"
+#define _PATH_RWHODIR "/var/spool/rwho"
+#define _PATH_SENDMAIL "/usr/sbin/sendmail"
+#define _PATH_SHADOW "/etc/shadow"
+#define _PATH_SHELLS "/etc/shells"
+#define _PATH_TTY "/dev/tty"
+#define _PATH_UNIX "/boot/vmlinux"
+#define _PATH_UTMP "/var/run/utmp"
+#define _PATH_VI "/usr/bin/vi"
+#define _PATH_WTMP "/var/log/wtmp"
+
+/* Provide trailing slash, since mostly used for building pathnames. */
+
+#define _PATH_DEV "/dev/"
+#define _PATH_TMP "/tmp/"
+#define _PATH_VARDB "/var/lib/misc/"
+#define _PATH_VARRUN "/var/run/"
+#define _PATH_VARTMP "/var/tmp/"
+
+#endif /* __INCLUDE_PATHS_H */
diff --git a/include/sys/ttydefaults.h b/include/sys/ttydefaults.h
new file mode 100644
index 00000000000..0593188a343
--- /dev/null
+++ b/include/sys/ttydefaults.h
@@ -0,0 +1,102 @@
+/****************************************************************************
+ * include/sys/ttydefaults.h
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ * SPDX-FileCopyrightText: 1982, 1986, 1993 The Regents of the University of
+ * California. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+#ifndef __INCLUDE_SYS_TTYDEFAULTS_H
+#define __INCLUDE_SYS_TTYDEFAULTS_H
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/* System wide defaults for terminal state. Compatible with the historical
+ * 4.4BSD <sys/ttydefaults.h> used by portable command line utilities.
+ */
+
+/* Control Character Defaults */
+
+#define CTRL(x) ((x) & 037)
+
+#define CEOF CTRL('d')
+#ifdef _POSIX_VDISABLE
+# define CEOL _POSIX_VDISABLE
+#else
+# define CEOL '\0' /* XXX avoid _POSIX_VDISABLE requirement */
+#endif
+#define CERASE 0177
+#define CINTR CTRL('c')
+#define CSTATUS CTRL('t')
+#define CKILL CTRL('u')
+#define CMIN 1
+#define CQUIT 034 /* FS, ^\ */
+#define CSUSP CTRL('z')
+#define CTIME 0
+#define CDSUSP CTRL('y')
+#define CSTART CTRL('q')
+#define CSTOP CTRL('s')
+#define CLNEXT CTRL('v')
+#define CDISCARD CTRL('o')
+#define CWERASE CTRL('w')
+#define CREPRINT CTRL('r')
+#define CEOT CEOF
+
+/* Compat */
+
+#define CBRK CEOL
+#define CRPRNT CREPRINT
+#define CFLUSH CDISCARD
+
+/* PROTECTED INCLUSION ENDS HERE */
+
+/* #define TTYDEFCHARS to include an array of default control characters. */
+
+#ifdef TTYDEFCHARS
+
+static const cc_t ttydefchars[] =
+{
+ CEOF, CEOL, CEOL, CERASE, CWERASE, CKILL, CREPRINT, CERASE, CINTR,
+ CQUIT, CSUSP, CDSUSP, CSTART, CSTOP, CLNEXT, CDISCARD, CMIN, CTIME,
+ CSTATUS, _POSIX_VDISABLE
+};
+
+#undef TTYDEFCHARS
+#endif /* TTYDEFCHARS */
+
+/* Default terminal flag values (only used if referenced). */
+
+#define TTYDEF_IFLAG (BRKINT | ISTRIP | ICRNL | IMAXBEL | IXON | IXANY)
+#define TTYDEF_OFLAG (OPOST | ONLCR)
+#define TTYDEF_LFLAG (ECHO | ICANON | ISIG | IEXTEN | ECHOE | ECHOKE | ECHOCTL)
+#define TTYDEF_CFLAG (CREAD | CS7 | PARENB | HUPCL)
+#define TTYDEF_SPEED (B9600)
+
+#endif /* __INCLUDE_SYS_TTYDEFAULTS_H */
diff --git a/include/termios.h b/include/termios.h
index 9b8725e06aa..55efe7bcd91 100644
--- a/include/termios.h
+++ b/include/termios.h
@@ -51,6 +51,7 @@
#define IXANY (1 << 11) /* Bit 11: Enable any character to restart output
*/
#define IXOFF (1 << 12) /* Bit 12: Enable start/stop input control */
#define IMAXBEL (1 << 13) /* Bit 13: Ring bell when input queue is full */
+#define IUTF8 (1 << 14) /* Bit 14: Input is UTF8 (for canonical erase) */
/* Terminal output modes (c_oflag in the termios structure) */
