8a16b7a18f
Mainly focus on files that use BSD 3-Clause license. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. Special thanks to Wind River for providing access to "The Duke of Highlander" tool: an older (2014) run over FreeBSD tree was useful as a starting point.
1002 lines
20 KiB
C
1002 lines
20 KiB
C
/* $OpenBSD: cmds.c,v 1.26 2006/06/06 23:24:52 deraadt Exp $ */
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/* $NetBSD: cmds.c,v 1.7 1997/02/11 09:24:03 mrg Exp $ */
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/*-
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright (c) 1983, 1993
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* The Regents of the University of California. 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. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)cmds.c 8.1 (Berkeley) 6/6/93";
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static const char rcsid[] = "$OpenBSD: cmds.c,v 1.26 2006/06/06 23:24:52 deraadt Exp $";
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#endif
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#endif /* not lint */
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#include "tip.h"
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#include "pathnames.h"
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#include <vis.h>
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/*
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* tip
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*
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* miscellaneous commands
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*/
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int quant[] = { 60, 60, 24 };
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char null = '\0';
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char *sep[] = { "second", "minute", "hour" };
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static char *argv[10]; /* argument vector for take and put */
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static void transfer(char *, int, char *);
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static void stopsnd(int); /* SIGINT handler during file transfers */
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static void intcopy(int); /* interrupt routine for file transfers */
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static void transmit(FILE *, char *, char *);
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static void send(int);
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static void execute(char *);
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static int args(char *, char **, int);
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static void prtime(char *, time_t);
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static void tandem(char *);
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static void hardwareflow(char *);
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void linedisc(char *);
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static int anyof(char *, char *);
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/*
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* FTP - remote ==> local
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* get a file from the remote host
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*/
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void
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getfl(int c)
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{
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char buf[256], *cp;
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putchar(c);
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/*
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* get the UNIX receiving file's name
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*/
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if (prompt("Local file name? ", copyname, sizeof(copyname)))
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return;
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cp = expand(copyname);
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if ((sfd = creat(cp, 0666)) < 0) {
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printf("\r\n%s: cannot creat\r\n", copyname);
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return;
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}
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/*
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* collect parameters
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*/
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if (prompt("List command for remote system? ", buf, sizeof(buf))) {
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unlink(copyname);
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return;
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}
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transfer(buf, sfd, value(EOFREAD));
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}
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/*
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* Cu-like take command
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*/
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void
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cu_take(int c)
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{
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int fd, argc;
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char line[BUFSIZ], *cp;
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if (prompt("[take] ", copyname, sizeof(copyname)))
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return;
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if ((argc = args(copyname, argv, sizeof(argv)/sizeof(argv[0]))) < 1 ||
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argc > 2) {
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printf("usage: <take> from [to]\r\n");
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return;
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}
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if (argc == 1)
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argv[1] = argv[0];
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cp = expand(argv[1]);
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if ((fd = creat(cp, 0666)) < 0) {
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printf("\r\n%s: cannot create\r\n", argv[1]);
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return;
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}
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(void)snprintf(line, sizeof(line), "cat %s;echo ''|tr '\\012' '\\01'", argv[0]);
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transfer(line, fd, "\01");
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}
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static jmp_buf intbuf;
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/*
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* Bulk transfer routine --
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* used by getfl(), cu_take(), and pipefile()
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*/
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static void
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transfer(char *buf, int fd, char *eofchars)
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{
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int ct, eof;
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char c, buffer[BUFSIZ];
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char *p = buffer;
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size_t cnt;
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time_t start;
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sig_t f;
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char r;
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if (number(value(FRAMESIZE)) > BUFSIZ || number(value(FRAMESIZE)) < 1) {
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printf("framesize must be >= 1 and <= %d\r\n", BUFSIZ);
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close(fd);
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return;
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}
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parwrite(FD, buf, size(buf));
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quit = 0;
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kill(tipout_pid, SIGIOT);
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read(repdes[0], (char *)&ccc, 1); /* Wait until read process stops */
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/*
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* finish command
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*/
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r = '\r';
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parwrite(FD, &r, 1);
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do
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read(FD, &c, 1);
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while ((c&STRIP_PAR) != '\n');
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tcsetattr(0, TCSAFLUSH, &defchars);
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(void) setjmp(intbuf);
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f = signal(SIGINT, intcopy);
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start = time(0);
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for (ct = 0; !quit;) {
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eof = read(FD, &c, 1) <= 0;
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c &= STRIP_PAR;
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if (quit)
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continue;
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if (eof || any(c, eofchars))
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break;
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if (c == 0)
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continue; /* ignore nulls */
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if (c == '\r')
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continue;
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*p++ = c;
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if (c == '\n' && boolean(value(VERBOSE)))
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printf("\r%d", ++ct);
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if ((cnt = (p-buffer)) == (size_t)number(value(FRAMESIZE))) {
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if ((size_t)write(fd, buffer, cnt) != cnt) {
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printf("\r\nwrite error\r\n");
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quit = 1;
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}
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p = buffer;
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}
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}
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if ((cnt = (p-buffer)))
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if ((size_t)write(fd, buffer, cnt) != cnt)
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printf("\r\nwrite error\r\n");
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if (boolean(value(VERBOSE)))
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prtime(" lines transferred in ", time(0)-start);
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tcsetattr(0, TCSAFLUSH, &term);
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write(fildes[1], (char *)&ccc, 1);
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signal(SIGINT, f);
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close(fd);
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}
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/*
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* FTP - remote ==> local process
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* send remote input to local process via pipe
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*/
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/*ARGSUSED*/
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void
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pipefile(int c)
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{
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int pdes[2];
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char buf[256];
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int status, p;
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pid_t cpid;
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if (prompt("Local command? ", buf, sizeof(buf)))
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return;
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if (pipe(pdes)) {
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printf("can't establish pipe\r\n");
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return;
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}
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if ((cpid = fork()) < 0) {
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printf("can't fork!\r\n");
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return;
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} else if (cpid) {
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if (prompt("List command for remote system? ", buf, sizeof(buf))) {
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close(pdes[0]), close(pdes[1]);
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kill (cpid, SIGKILL);
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} else {
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close(pdes[0]);
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signal(SIGPIPE, intcopy);
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transfer(buf, pdes[1], value(EOFREAD));
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signal(SIGPIPE, SIG_DFL);
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while ((p = wait(&status)) > 0 && p != cpid)
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;
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}
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} else {
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int f;
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dup2(pdes[0], 0);
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close(pdes[0]);
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for (f = 3; f < 20; f++)
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close(f);
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execute(buf);
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printf("can't execl!\r\n");
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exit(0);
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}
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}
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/*
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* Interrupt service routine for FTP
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*/
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/*ARGSUSED*/
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static void
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stopsnd(int signo)
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{
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stop = 1;
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signal(SIGINT, SIG_IGN);
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}
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/*
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* FTP - local ==> remote
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* send local file to remote host
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* terminate transmission with pseudo EOF sequence
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*/
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void
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sendfile(int c)
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{
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FILE *fp;
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char *fnamex;
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putchar(c);
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/*
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* get file name
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*/
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if (prompt("Local file name? ", fname, sizeof(fname)))
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return;
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/*
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* look up file
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*/
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fnamex = expand(fname);
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if ((fp = fopen(fnamex, "r")) == NULL) {
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printf("%s: cannot open\r\n", fname);
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return;
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}
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transmit(fp, value(EOFWRITE), NULL);
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if (!boolean(value(ECHOCHECK)))
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tcdrain(FD);
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}
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/*
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* Bulk transfer routine to remote host --
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* used by sendfile() and cu_put()
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*/
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static void
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transmit(FILE *fp, char *eofchars, char *command)
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{
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char *pc, lastc;
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int c, ccount, lcount;
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time_t start_t, stop_t;
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sig_t f;
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kill(tipout_pid, SIGIOT); /* put TIPOUT into a wait state */
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stop = 0;
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f = signal(SIGINT, stopsnd);
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tcsetattr(0, TCSAFLUSH, &defchars);
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read(repdes[0], (char *)&ccc, 1);
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if (command != NULL) {
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for (pc = command; *pc; pc++)
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send(*pc);
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if (boolean(value(ECHOCHECK)))
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read(FD, (char *)&c, 1); /* trailing \n */
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else {
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tcdrain(FD);
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sleep(5); /* wait for remote stty to take effect */
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}
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}
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lcount = 0;
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lastc = '\0';
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start_t = time(0);
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while (1) {
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ccount = 0;
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do {
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c = getc(fp);
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if (stop)
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goto out;
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if (c == EOF)
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goto out;
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if (c == 0177 && !boolean(value(RAWFTP)))
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continue;
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lastc = c;
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if (c < 040) {
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if (c == '\n') {
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if (!boolean(value(RAWFTP)))
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c = '\r';
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} else if (c == '\t') {
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if (!boolean(value(RAWFTP))) {
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if (boolean(value(TABEXPAND))) {
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send(' ');
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while ((++ccount % 8) != 0)
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send(' ');
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continue;
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}
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}
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} else
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if (!boolean(value(RAWFTP)))
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continue;
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}
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send(c);
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} while (c != '\r' && !boolean(value(RAWFTP)));
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if (boolean(value(VERBOSE)))
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printf("\r%d", ++lcount);
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if (boolean(value(ECHOCHECK))) {
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timedout = 0;
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alarm((unsigned int)lvalue(ETIMEOUT));
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do { /* wait for prompt */
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read(FD, (char *)&c, 1);
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if (timedout || stop) {
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if (timedout)
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printf("\r\ntimed out at eol\r\n");
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alarm(0);
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goto out;
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}
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} while ((c&STRIP_PAR) != character(value(PROMPT)));
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alarm(0);
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}
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}
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out:
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if (lastc != '\n' && !boolean(value(RAWFTP)))
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send('\r');
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if (eofchars) {
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for (pc = eofchars; *pc; pc++)
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send(*pc);
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}
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stop_t = time(0);
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fclose(fp);
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signal(SIGINT, f);
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if (boolean(value(VERBOSE))) {
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if (boolean(value(RAWFTP)))
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prtime(" chars transferred in ", stop_t-start_t);
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else
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prtime(" lines transferred in ", stop_t-start_t);
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}
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write(fildes[1], (char *)&ccc, 1);
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tcsetattr(0, TCSAFLUSH, &term);
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}
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/*
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* Cu-like put command
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*/
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/*ARGSUSED*/
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void
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cu_put(int c)
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{
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FILE *fp;
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char line[BUFSIZ];
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int argc;
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char *copynamex;
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if (prompt("[put] ", copyname, sizeof(copyname)))
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return;
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if ((argc = args(copyname, argv, sizeof(argv)/sizeof(argv[0]))) < 1 ||
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argc > 2) {
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printf("usage: <put> from [to]\r\n");
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return;
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}
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if (argc == 1)
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argv[1] = argv[0];
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copynamex = expand(argv[0]);
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if ((fp = fopen(copynamex, "r")) == NULL) {
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printf("%s: cannot open\r\n", copynamex);
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return;
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}
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if (boolean(value(ECHOCHECK)))
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(void)snprintf(line, sizeof(line), "cat>%s\r", argv[1]);
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else
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(void)snprintf(line, sizeof(line),
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"stty -echo;cat>%s;stty echo\r", argv[1]);
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transmit(fp, "\04", line);
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}
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/*
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* FTP - send single character
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* wait for echo & handle timeout
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*/
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static void
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send(int c)
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{
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char cc;
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int retry = 0;
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cc = c;
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parwrite(FD, &cc, 1);
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if (number(value(CDELAY)) > 0 && c != '\r')
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usleep(number(value(CDELAY)));
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if (!boolean(value(ECHOCHECK))) {
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if (number(value(LDELAY)) > 0 && c == '\r')
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usleep(number(value(LDELAY)));
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return;
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}
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tryagain:
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timedout = 0;
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alarm((unsigned int)lvalue(ETIMEOUT));
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read(FD, &cc, 1);
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alarm(0);
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if (timedout) {
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printf("\r\ntimeout error (%s)\r\n", ctrl(c));
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if (retry++ > 3)
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return;
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parwrite(FD, &null, 1); /* poke it */
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goto tryagain;
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}
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}
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/*ARGSUSED*/
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void
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timeout(int signo)
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{
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signal(SIGALRM, timeout);
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timedout = 1;
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}
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/*
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* Stolen from consh() -- puts a remote file on the output of a local command.
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* Identical to consh() except for where stdout goes.
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*/
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void
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pipeout(int c)
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{
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char buf[256];
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int status, p;
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pid_t cpid;
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time_t start = time(NULL);
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putchar(c);
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if (prompt("Local command? ", buf, sizeof(buf)))
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return;
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kill(tipout_pid, SIGIOT); /* put TIPOUT into a wait state */
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signal(SIGINT, SIG_IGN);
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signal(SIGQUIT, SIG_IGN);
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tcsetattr(0, TCSAFLUSH, &defchars);
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read(repdes[0], (char *)&ccc, 1);
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/*
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* Set up file descriptors in the child and
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* let it go...
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*/
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if ((cpid = fork()) < 0)
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printf("can't fork!\r\n");
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else if (cpid) {
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start = time(NULL);
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while ((p = wait(&status)) > 0 && p != cpid)
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;
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} else {
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int i;
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dup2(FD, 1);
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for (i = 3; i < 20; i++)
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close(i);
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signal(SIGINT, SIG_DFL);
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signal(SIGQUIT, SIG_DFL);
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execute(buf);
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printf("can't find `%s'\r\n", buf);
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exit(0);
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}
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if (boolean(value(VERBOSE)))
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prtime("away for ", time(0)-start);
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write(fildes[1], (char *)&ccc, 1);
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tcsetattr(0, TCSAFLUSH, &term);
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signal(SIGINT, SIG_DFL);
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signal(SIGQUIT, SIG_DFL);
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}
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#ifdef CONNECT
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/*
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* Fork a program with:
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* 0 <-> remote tty in
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* 1 <-> remote tty out
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* 2 <-> local tty stderr
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*/
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|
void
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consh(int c)
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{
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char buf[256];
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int status, p;
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pid_t cpid;
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time_t start = time(NULL);
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putchar(c);
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if (prompt("Local command? ", buf, sizeof(buf)))
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return;
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kill(tipout_pid, SIGIOT); /* put TIPOUT into a wait state */
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signal(SIGINT, SIG_IGN);
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signal(SIGQUIT, SIG_IGN);
|
|
tcsetattr(0, TCSAFLUSH, &defchars);
|
|
read(repdes[0], (char *)&ccc, 1);
|
|
/*
|
|
* Set up file descriptors in the child and
|
|
* let it go...
|
|
*/
|
|
if ((cpid = fork()) < 0)
|
|
printf("can't fork!\r\n");
|
|
else if (cpid) {
|
|
start = time(0);
|
|
while ((p = wait(&status)) > 0 && p != cpid)
|
|
;
|
|
} else {
|
|
int i;
|
|
|
|
dup2(FD, 0);
|
|
dup2(3, 1);
|
|
for (i = 3; i < 20; i++)
|
|
close(i);
|
|
signal(SIGINT, SIG_DFL);
|
|
signal(SIGQUIT, SIG_DFL);
|
|
execute(buf);
|
|
printf("can't find `%s'\r\n", buf);
|
|
exit(0);
|
|
}
|
|
if (boolean(value(VERBOSE)))
|
|
prtime("away for ", time(0)-start);
|
|
write(fildes[1], (char *)&ccc, 1);
|
|
tcsetattr(0, TCSAFLUSH, &term);
|
|
signal(SIGINT, SIG_DFL);
|
|
signal(SIGQUIT, SIG_DFL);
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Escape to local shell
|
|
*/
|
|
/*ARGSUSED*/
|
|
void
|
|
shell(int c)
|
|
{
|
|
int status;
|
|
char *cp;
|
|
pid_t shpid;
|
|
|
|
printf("[sh]\r\n");
|
|
signal(SIGINT, SIG_IGN);
|
|
signal(SIGQUIT, SIG_IGN);
|
|
unraw();
|
|
if ((shpid = fork())) {
|
|
while (shpid != wait(&status));
|
|
raw();
|
|
printf("\r\n!\r\n");
|
|
signal(SIGINT, SIG_DFL);
|
|
signal(SIGQUIT, SIG_DFL);
|
|
return;
|
|
} else {
|
|
signal(SIGQUIT, SIG_DFL);
|
|
signal(SIGINT, SIG_DFL);
|
|
if ((cp = strrchr(value(SHELL), '/')) == NULL)
|
|
cp = value(SHELL);
|
|
else
|
|
cp++;
|
|
shell_uid();
|
|
execl(value(SHELL), cp, (char *)NULL);
|
|
printf("\r\ncan't execl!\r\n");
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* TIPIN portion of scripting
|
|
* initiate the conversation with TIPOUT
|
|
*/
|
|
void
|
|
setscript(void)
|
|
{
|
|
char c;
|
|
|
|
/*
|
|
* enable TIPOUT side for dialogue
|
|
*/
|
|
kill(tipout_pid, SIGEMT);
|
|
if (boolean(value(SCRIPT)))
|
|
write(fildes[1], value(RECORD), size(value(RECORD)));
|
|
write(fildes[1], "\n", 1);
|
|
/*
|
|
* wait for TIPOUT to finish
|
|
*/
|
|
read(repdes[0], &c, 1);
|
|
if (c == 'n')
|
|
printf("can't create %s\r\n", value(RECORD));
|
|
}
|
|
|
|
/*
|
|
* Change current working directory of
|
|
* local portion of tip
|
|
*/
|
|
/*ARGSUSED*/
|
|
void
|
|
chdirectory(int c)
|
|
{
|
|
char dirname[PATH_MAX];
|
|
char *cp = dirname;
|
|
|
|
if (prompt("[cd] ", dirname, sizeof(dirname))) {
|
|
if (stoprompt)
|
|
return;
|
|
cp = value(HOME);
|
|
}
|
|
if (chdir(cp) < 0)
|
|
printf("%s: bad directory\r\n", cp);
|
|
printf("!\r\n");
|
|
}
|
|
|
|
void
|
|
tipabort(char *msg)
|
|
{
|
|
|
|
signal(SIGTERM, SIG_IGN);
|
|
kill(tipout_pid, SIGTERM);
|
|
disconnect(msg);
|
|
if (msg != NOSTR)
|
|
printf("\r\n%s", msg);
|
|
printf("\r\n[EOT]\r\n");
|
|
daemon_uid();
|
|
(void)uu_unlock(uucplock);
|
|
unraw();
|
|
unexcl();
|
|
exit(0);
|
|
}
|
|
|
|
/*ARGSUSED*/
|
|
void
|
|
finish(int c)
|
|
{
|
|
char *dismsg;
|
|
|
|
if ((dismsg = value(DISCONNECT)) != NOSTR) {
|
|
write(FD, dismsg, strlen(dismsg));
|
|
sleep(5);
|
|
}
|
|
tipabort(NOSTR);
|
|
}
|
|
|
|
/*ARGSUSED*/
|
|
static void
|
|
intcopy(int signo)
|
|
{
|
|
raw();
|
|
quit = 1;
|
|
longjmp(intbuf, 1);
|
|
}
|
|
|
|
static void
|
|
execute(char *s)
|
|
{
|
|
char *cp;
|
|
|
|
if ((cp = strrchr(value(SHELL), '/')) == NULL)
|
|
cp = value(SHELL);
|
|
else
|
|
cp++;
|
|
shell_uid();
|
|
execl(value(SHELL), cp, "-c", s, (char *)NULL);
|
|
}
|
|
|
|
static int
|
|
args(char *buf, char *a[], int num)
|
|
{
|
|
char *p = buf, *start;
|
|
char **parg = a;
|
|
int n = 0;
|
|
|
|
do {
|
|
while (*p && (*p == ' ' || *p == '\t'))
|
|
p++;
|
|
start = p;
|
|
if (*p)
|
|
*parg = p;
|
|
while (*p && (*p != ' ' && *p != '\t'))
|
|
p++;
|
|
if (p != start)
|
|
parg++, n++;
|
|
if (*p)
|
|
*p++ = '\0';
|
|
} while (*p && n < num);
|
|
|
|
return(n);
|
|
}
|
|
|
|
static void
|
|
prtime(char *s, time_t a)
|
|
{
|
|
int i;
|
|
int nums[3];
|
|
|
|
for (i = 0; i < 3; i++) {
|
|
nums[i] = (int)(a % quant[i]);
|
|
a /= quant[i];
|
|
}
|
|
printf("%s", s);
|
|
while (--i >= 0)
|
|
if (nums[i] || (i == 0 && nums[1] == 0 && nums[2] == 0))
|
|
printf("%d %s%c ", nums[i], sep[i],
|
|
nums[i] == 1 ? '\0' : 's');
|
|
printf("\r\n!\r\n");
|
|
}
|
|
|
|
/*ARGSUSED*/
|
|
void
|
|
variable(int c)
|
|
{
|
|
char buf[256];
|
|
|
|
if (prompt("[set] ", buf, sizeof(buf)))
|
|
return;
|
|
vlex(buf);
|
|
if (vtable[BEAUTIFY].v_access&CHANGED) {
|
|
vtable[BEAUTIFY].v_access &= ~CHANGED;
|
|
kill(tipout_pid, SIGSYS);
|
|
}
|
|
if (vtable[SCRIPT].v_access&CHANGED) {
|
|
vtable[SCRIPT].v_access &= ~CHANGED;
|
|
setscript();
|
|
/*
|
|
* So that "set record=blah script" doesn't
|
|
* cause two transactions to occur.
|
|
*/
|
|
if (vtable[RECORD].v_access&CHANGED)
|
|
vtable[RECORD].v_access &= ~CHANGED;
|
|
}
|
|
if (vtable[RECORD].v_access&CHANGED) {
|
|
vtable[RECORD].v_access &= ~CHANGED;
|
|
if (boolean(value(SCRIPT)))
|
|
setscript();
|
|
}
|
|
if (vtable[TAND].v_access&CHANGED) {
|
|
vtable[TAND].v_access &= ~CHANGED;
|
|
if (boolean(value(TAND)))
|
|
tandem("on");
|
|
else
|
|
tandem("off");
|
|
}
|
|
if (vtable[LECHO].v_access&CHANGED) {
|
|
vtable[LECHO].v_access &= ~CHANGED;
|
|
HD = boolean(value(LECHO));
|
|
}
|
|
if (vtable[PARITY].v_access&CHANGED) {
|
|
vtable[PARITY].v_access &= ~CHANGED;
|
|
setparity(NOSTR);
|
|
}
|
|
if (vtable[HARDWAREFLOW].v_access&CHANGED) {
|
|
vtable[HARDWAREFLOW].v_access &= ~CHANGED;
|
|
if (boolean(value(HARDWAREFLOW)))
|
|
hardwareflow("on");
|
|
else
|
|
hardwareflow("off");
|
|
}
|
|
if (vtable[LINEDISC].v_access&CHANGED) {
|
|
vtable[LINEDISC].v_access &= ~CHANGED;
|
|
linedisc(NOSTR);
|
|
}
|
|
}
|
|
|
|
/*ARGSUSED*/
|
|
void
|
|
listvariables(int c)
|
|
{
|
|
value_t *p;
|
|
char *buf;
|
|
char charbuf[5]; /* for vis(3), 4 chars for encoding, plus nul */
|
|
|
|
puts("v\r");
|
|
for (p = vtable; p->v_name; p++) {
|
|
fputs(p->v_name, stdout);
|
|
switch (p->v_type&TMASK) {
|
|
case STRING:
|
|
if (p->v_value) {
|
|
buf = malloc(4*strlen(p->v_value) + 1);
|
|
if (buf == NULL) {
|
|
fprintf(stderr, "Unable to malloc()\n");
|
|
abort();
|
|
}
|
|
strvis(buf, p->v_value, VIS_WHITE);
|
|
printf(" %s", buf);
|
|
free(buf);
|
|
}
|
|
putchar('\r');
|
|
putchar('\n');
|
|
break;
|
|
case NUMBER:
|
|
printf(" %ld\r\n", number(p->v_value));
|
|
break;
|
|
case BOOL:
|
|
printf(" %s\r\n",
|
|
!boolean(p->v_value) ? "false" : "true");
|
|
break;
|
|
case CHAR:
|
|
vis(charbuf, character(p->v_value), VIS_WHITE, 0);
|
|
printf(" %s\r\n", charbuf);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Turn tandem mode on or off for remote tty.
|
|
*/
|
|
static void
|
|
tandem(char *option)
|
|
{
|
|
struct termios rmtty;
|
|
|
|
tcgetattr(FD, &rmtty);
|
|
if (strcmp(option, "on") == 0) {
|
|
rmtty.c_iflag |= IXOFF;
|
|
term.c_iflag |= IXOFF;
|
|
} else {
|
|
rmtty.c_iflag &= ~IXOFF;
|
|
term.c_iflag &= ~IXOFF;
|
|
}
|
|
tcsetattr(FD, TCSADRAIN, &rmtty);
|
|
tcsetattr(0, TCSADRAIN, &term);
|
|
}
|
|
|
|
/*
|
|
* Turn hardware flow control on or off for remote tty.
|
|
*/
|
|
static void
|
|
hardwareflow(char *option)
|
|
{
|
|
struct termios rmtty;
|
|
|
|
tcgetattr(FD, &rmtty);
|
|
if (strcmp(option, "on") == 0)
|
|
rmtty.c_iflag |= CRTSCTS;
|
|
else
|
|
rmtty.c_iflag &= ~CRTSCTS;
|
|
tcsetattr(FD, TCSADRAIN, &rmtty);
|
|
}
|
|
|
|
/*
|
|
* Change line discipline to the specified one.
|
|
*/
|
|
void
|
|
linedisc(char *option)
|
|
{
|
|
int ld = (int)(intptr_t)value(LINEDISC);
|
|
|
|
ioctl(FD, TIOCSETD, &ld);
|
|
}
|
|
|
|
/*
|
|
* Send a break.
|
|
*/
|
|
/*ARGSUSED*/
|
|
void
|
|
genbrk(int c)
|
|
{
|
|
ioctl(FD, TIOCSBRK, NULL);
|
|
sleep(1);
|
|
ioctl(FD, TIOCCBRK, NULL);
|
|
}
|
|
|
|
/*
|
|
* Suspend tip
|
|
*/
|
|
void
|
|
suspend(int c)
|
|
{
|
|
unraw();
|
|
kill(c == CTRL('y') ? getpid() : 0, SIGTSTP);
|
|
raw();
|
|
}
|
|
|
|
/*
|
|
* expand a file name if it includes shell meta characters
|
|
*/
|
|
char *
|
|
expand(char name[])
|
|
{
|
|
static char xname[BUFSIZ];
|
|
char cmdbuf[BUFSIZ];
|
|
int l;
|
|
char *cp, *Shell;
|
|
int s, pivec[2];
|
|
pid_t pid;
|
|
|
|
if (!anyof(name, "~{[*?$`'\"\\"))
|
|
return(name);
|
|
/* sigint = signal(SIGINT, SIG_IGN); */
|
|
if (pipe(pivec) < 0) {
|
|
perror("pipe");
|
|
/* signal(SIGINT, sigint) */
|
|
return(name);
|
|
}
|
|
(void)snprintf(cmdbuf, sizeof(cmdbuf), "echo %s", name);
|
|
if ((pid = vfork()) == 0) {
|
|
Shell = value(SHELL);
|
|
if (Shell == NOSTR)
|
|
Shell = _PATH_BSHELL;
|
|
close(pivec[0]);
|
|
close(1);
|
|
dup(pivec[1]);
|
|
close(pivec[1]);
|
|
close(2);
|
|
shell_uid();
|
|
execl(Shell, Shell, "-c", cmdbuf, (char *)NULL);
|
|
_exit(1);
|
|
}
|
|
if (pid == -1) {
|
|
perror("fork");
|
|
close(pivec[0]);
|
|
close(pivec[1]);
|
|
return(NOSTR);
|
|
}
|
|
close(pivec[1]);
|
|
l = read(pivec[0], xname, BUFSIZ);
|
|
close(pivec[0]);
|
|
while (wait(&s) != pid);
|
|
;
|
|
s &= 0377;
|
|
if (s != 0 && s != SIGPIPE) {
|
|
fprintf(stderr, "\"Echo\" failed\n");
|
|
return(NOSTR);
|
|
}
|
|
if (l < 0) {
|
|
perror("read");
|
|
return(NOSTR);
|
|
}
|
|
if (l == 0) {
|
|
fprintf(stderr, "\"%s\": No match\n", name);
|
|
return(NOSTR);
|
|
}
|
|
if (l == BUFSIZ) {
|
|
fprintf(stderr, "Buffer overflow expanding \"%s\"\n", name);
|
|
return(NOSTR);
|
|
}
|
|
xname[l] = 0;
|
|
for (cp = &xname[l-1]; *cp == '\n' && cp > xname; cp--)
|
|
;
|
|
*++cp = '\0';
|
|
return(xname);
|
|
}
|
|
|
|
/*
|
|
* Are any of the characters in the two strings the same?
|
|
*/
|
|
static int
|
|
anyof(char *s1, char *s2)
|
|
{
|
|
int c;
|
|
|
|
while ((c = *s1++))
|
|
if (any(c, s2))
|
|
return(1);
|
|
return(0);
|
|
}
|