* Updating common/lib * Updating lib/csu * Updating lib/libc * Updating libexec/ld.elf_so * Corrected test on __minix in featuretest to actually follow the meaning of the comment. * Cleaned up _REENTRANT-related defintions. * Disabled -D_REENTRANT for libfetch * Removing some unneeded __NBSD_LIBC defines and tests Change-Id: Ic1394baef74d11b9f86b312f5ff4bbc3cbf72ce2
198 lines
5.1 KiB
C
198 lines
5.1 KiB
C
/* $NetBSD: menuutils.c,v 1.3 2008/12/14 18:46:33 christos Exp $ */
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/*
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* Copyright (c) 1996, 1997
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* Matthias Drochner. All rights reserved.
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* Copyright (c) 1996, 1997
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* Perry E. Metzger. All rights reserved.
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* Copyright (c) 1997
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* Jason R. Thorpe. All rights reserved
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgements:
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* This product includes software developed for the NetBSD Project
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* by Matthias Drochner.
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* This product includes software developed for the NetBSD Project
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* by Perry E. Metzger.
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* 4. The names of the authors may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <lib/libkern/libkern.h>
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#include <lib/libsa/stand.h>
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#include "libi386.h"
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void
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docommand(char *arg)
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{
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char *options;
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int i;
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options = gettrailer(arg);
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for (i = 0; commands[i].c_name != NULL; i++) {
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if (strcmp(arg, commands[i].c_name) == 0) {
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(*commands[i].c_fn)(options);
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return;
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}
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}
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printf("unknown command\n");
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command_help(NULL);
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}
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void
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prompt(int allowreturn)
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{
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char input[80];
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for (;;) {
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char *c = input;
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input[0] = '\0';
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printf("> ");
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editline(input, sizeof(input), NULL);
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/*
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* Skip leading whitespace.
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*/
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while (*c == ' ')
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c++;
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if (allowreturn && !strcmp(c, "menu"))
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break;
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if (*c)
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docommand(c);
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}
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}
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void
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bootmenu(void)
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{
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prompt(0);
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}
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/* Derived from libsa gets(). */
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void
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editline(char *buf, size_t size, char *input)
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{
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int c, i, pos, len = 0;
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/* If an initial input has been given, copy and print this first. */
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if (input != NULL) {
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while (*input && len < size - 1)
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putchar(buf[len++] = *input++);
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}
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pos = len;
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for (;;) {
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c = getchar_ex();
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switch (c & 0177) {
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case '\0':
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switch (c) {
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case 0x4b00: /* Left arrow: move cursor to left. */
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if (pos > 0) {
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putchar('\b');
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pos--;
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}
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break;
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case 0x4d00: /* Right arrow: move cursor to right. */
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if (pos < len) putchar(buf[pos++]);
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break;
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}
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break;
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case 'b' & 037: /* Ctrl+B: move cursor to left. */
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if (pos > 0) {
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putchar('\b');
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pos--;
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}
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break;
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case 'f' & 037: /* Ctrl+F: move cursor to right. */
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if (pos < len) putchar(buf[pos++]);
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break;
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case 'a' & 037: /* Ctrl+A: move cursor to start of line. */
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for ( ; pos > 0; pos--) putchar('\b');
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break;
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case 'e' & 037: /* Ctrl+E: move cursor to end of line. */
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for ( ; pos < len; pos++) putchar(buf[pos]);
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break;
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case '\n': /* Enter: return line. */
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case '\r':
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for ( ; pos < len; pos++) putchar(buf[pos]);
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buf[len] = '\0';
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putchar('\n');
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return;
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#if HASH_ERASE
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case '#':
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#endif
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case '\b': /* Backspace: erase character before cursor. */
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case '\177':
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if (pos > 0) {
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pos--;
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len--;
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putchar('\b');
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for (i = pos; i < len; i++)
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putchar(buf[i] = buf[i + 1]);
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putchar(' ');
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for (i = pos; i < len; i++) putchar('\b');
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putchar('\b');
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}
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break;
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case 'r' & 037: /* Ctrl+R: reprint line. */
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putchar('\n');
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for (i = 0; i < len; i++) putchar(buf[i]);
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for (i = len; i > pos; i--) putchar('\b');
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break;
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#if AT_ERASE
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case '@':
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#endif
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case 'u' & 037: /* Ctrl+U: clear entire line. */
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case 'w' & 037:
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for ( ; pos > 0; pos--) putchar('\b');
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for ( ; pos < len; pos++) putchar(' ');
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for ( ; pos > 0; pos--) putchar('\b');
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len = 0;
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break;
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case '\a': /* Ctrl+G: sound bell but do not store character. */
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putchar(c);
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break;
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case '\t': /* Tab: convert to single space. */
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c = ' ';
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/*FALLTHROUGH*/
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default: /* Insert character at cursor position. */
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if (len < size - 1) {
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for (i = len; i > pos; i--)
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buf[i] = buf[i - 1];
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buf[pos] = c;
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pos++;
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len++;
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putchar(c);
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for (i = pos; i < len; i++) putchar(buf[i]);
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for (i = pos; i < len; i++) putchar('\b');
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} else {
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putchar('\a');
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}
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break;
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}
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}
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/*NOTREACHED*/
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}
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