prompt.c revision 112753
136285Sbrian/*- 236285Sbrian * Copyright (c) 1998 Brian Somers <brian@Awfulhak.org> 336285Sbrian * All rights reserved. 436285Sbrian * 536285Sbrian * Redistribution and use in source and binary forms, with or without 636285Sbrian * modification, are permitted provided that the following conditions 736285Sbrian * are met: 836285Sbrian * 1. Redistributions of source code must retain the above copyright 936285Sbrian * notice, this list of conditions and the following disclaimer. 1036285Sbrian * 2. Redistributions in binary form must reproduce the above copyright 1136285Sbrian * notice, this list of conditions and the following disclaimer in the 1236285Sbrian * documentation and/or other materials provided with the distribution. 1336285Sbrian * 1436285Sbrian * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1536285Sbrian * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1636285Sbrian * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1736285Sbrian * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 1836285Sbrian * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 1936285Sbrian * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2036285Sbrian * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2136285Sbrian * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2236285Sbrian * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2336285Sbrian * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2436285Sbrian * SUCH DAMAGE. 2536285Sbrian * 2650479Speter * $FreeBSD: head/usr.sbin/ppp/prompt.c 112753 2003-03-28 18:23:43Z ume $ 2736285Sbrian */ 2836285Sbrian 2936285Sbrian#include <sys/param.h> 3036285Sbrian#include <netinet/in.h> 3136285Sbrian#include <netinet/in_systm.h> 3236285Sbrian#include <netinet/ip.h> 3381634Sbrian#include <sys/socket.h> 3436285Sbrian#include <sys/un.h> 3536285Sbrian 3636285Sbrian#include <errno.h> 3736285Sbrian#include <stdarg.h> 3836285Sbrian#include <stdio.h> 3936285Sbrian#include <stdlib.h> 4036285Sbrian#include <string.h> 4136285Sbrian#include <sys/fcntl.h> 4236285Sbrian#include <termios.h> 4336285Sbrian#include <unistd.h> 4436285Sbrian 4546686Sbrian#include "layer.h" 4636285Sbrian#include "defs.h" 4736285Sbrian#include "timer.h" 4836285Sbrian#include "command.h" 4936285Sbrian#include "log.h" 5036285Sbrian#include "descriptor.h" 5136285Sbrian#include "prompt.h" 5236285Sbrian#include "fsm.h" 5336285Sbrian#include "auth.h" 5436285Sbrian#include "iplist.h" 5536285Sbrian#include "throughput.h" 5636285Sbrian#include "slcompress.h" 5738557Sbrian#include "mbuf.h" 5838557Sbrian#include "lqr.h" 5938557Sbrian#include "hdlc.h" 6063484Sbrian#include "lcp.h" 6181634Sbrian#include "ncpaddr.h" 6236285Sbrian#include "ipcp.h" 6336285Sbrian#include "filter.h" 6436285Sbrian#include "async.h" 6536285Sbrian#include "ccp.h" 6636285Sbrian#include "link.h" 6736285Sbrian#include "physical.h" 6836285Sbrian#include "mp.h" 6943313Sbrian#ifndef NORADIUS 7043313Sbrian#include "radius.h" 7143313Sbrian#endif 7281634Sbrian#include "ipv6cp.h" 7381634Sbrian#include "ncp.h" 7436285Sbrian#include "bundle.h" 7536285Sbrian#include "chat.h" 7636285Sbrian#include "chap.h" 7738174Sbrian#include "cbcp.h" 7836285Sbrian#include "datalink.h" 7936285Sbrian#include "server.h" 8037386Sbrian#include "main.h" 8136285Sbrian 8236285Sbrianstatic void 8336285Sbrianprompt_Display(struct prompt *p) 8436285Sbrian{ 8537010Sbrian /* XXX: See Index2Nam() - should we only figure this out once ? */ 8674049Sbrian static char shostname[MAXHOSTNAMELEN]; 8736285Sbrian const char *pconnect, *pauth; 8836285Sbrian 8936285Sbrian if (p->TermMode || !p->needprompt) 9036285Sbrian return; 9136285Sbrian 9236285Sbrian p->needprompt = 0; 9336285Sbrian 9436285Sbrian if (p->nonewline) 9536285Sbrian p->nonewline = 0; 9636285Sbrian else 9736285Sbrian fprintf(p->Term, "\n"); 9836285Sbrian 9936285Sbrian if (p->auth == LOCAL_AUTH) 10036285Sbrian pauth = " ON "; 10136285Sbrian else 10236285Sbrian pauth = " on "; 10336285Sbrian 10436285Sbrian if (p->bundle->ncp.ipcp.fsm.state == ST_OPENED) 10536285Sbrian pconnect = "PPP"; 106112753Sume#ifndef NOINET6 107112753Sume else if (!Enabled(p->bundle, OPT_IPCP) && 108112753Sume p->bundle->ncp.ipv6cp.fsm.state == ST_OPENED) 109112753Sume pconnect = "PPP"; 110112753Sume#endif 11136285Sbrian else if (bundle_Phase(p->bundle) == PHASE_NETWORK) 11236285Sbrian pconnect = "PPp"; 11336285Sbrian else if (bundle_Phase(p->bundle) == PHASE_AUTHENTICATE) 11436285Sbrian pconnect = "Ppp"; 11536285Sbrian else 11636285Sbrian pconnect = "ppp"; 11736285Sbrian 11836285Sbrian if (*shostname == '\0') { 11936285Sbrian char *dot; 12036285Sbrian 12174001Sbrian if (gethostname(shostname, sizeof shostname) || *shostname == '\0') 12236285Sbrian strcpy(shostname, "localhost"); 12336285Sbrian else if ((dot = strchr(shostname, '.'))) 12436285Sbrian *dot = '\0'; 12536285Sbrian } 12636285Sbrian 12736285Sbrian fprintf(p->Term, "%s%s%s> ", pconnect, pauth, shostname); 12836285Sbrian fflush(p->Term); 12936285Sbrian} 13036285Sbrian 13136285Sbrianstatic int 13258028Sbrianprompt_UpdateSet(struct fdescriptor *d, fd_set *r, fd_set *w, fd_set *e, int *n) 13336285Sbrian{ 13436285Sbrian struct prompt *p = descriptor2prompt(d); 13536285Sbrian int sets; 13636285Sbrian 13736285Sbrian sets = 0; 13836285Sbrian 13936285Sbrian if (!p->active) 14036285Sbrian return sets; 14136285Sbrian 14236285Sbrian if (p->fd_in >= 0) { 14336285Sbrian if (r) { 14436285Sbrian FD_SET(p->fd_in, r); 14536285Sbrian log_Printf(LogTIMER, "prompt %s: fdset(r) %d\n", p->src.from, p->fd_in); 14636285Sbrian sets++; 14736285Sbrian } 14836285Sbrian if (e) { 14936285Sbrian FD_SET(p->fd_in, e); 15036285Sbrian log_Printf(LogTIMER, "prompt %s: fdset(e) %d\n", p->src.from, p->fd_in); 15136285Sbrian sets++; 15236285Sbrian } 15336285Sbrian if (sets && *n < p->fd_in + 1) 15436285Sbrian *n = p->fd_in + 1; 15536285Sbrian } 15636285Sbrian 15736285Sbrian prompt_Display(p); 15836285Sbrian 15936285Sbrian return sets; 16036285Sbrian} 16136285Sbrian 16236285Sbrianstatic int 16358028Sbrianprompt_IsSet(struct fdescriptor *d, const fd_set *fdset) 16436285Sbrian{ 16536285Sbrian struct prompt *p = descriptor2prompt(d); 16636285Sbrian return p->fd_in >= 0 && FD_ISSET(p->fd_in, fdset); 16736285Sbrian} 16836285Sbrian 16936285Sbrian 17036285Sbrianstatic void 17136285Sbrianprompt_ShowHelp(struct prompt *p) 17236285Sbrian{ 17337011Sbrian prompt_Printf(p, "The following commands are available:\n"); 17437011Sbrian prompt_Printf(p, " ~p\tEnter Packet mode\n"); 17537011Sbrian prompt_Printf(p, " ~t\tShow timers\n"); 17637011Sbrian prompt_Printf(p, " ~m\tShow memory map\n"); 17737011Sbrian prompt_Printf(p, " ~.\tTerminate program\n"); 17837011Sbrian prompt_Printf(p, " ~?\tThis help\n"); 17936285Sbrian} 18036285Sbrian 18136285Sbrianstatic void 18258028Sbrianprompt_Read(struct fdescriptor *d, struct bundle *bundle, const fd_set *fdset) 18336285Sbrian{ 18436285Sbrian struct prompt *p = descriptor2prompt(d); 18551005Sbrian struct prompt *op; 18636285Sbrian int n; 18736285Sbrian char ch; 18836285Sbrian char linebuff[LINE_LEN]; 18936285Sbrian 19036285Sbrian if (p->TermMode == NULL) { 19136285Sbrian n = read(p->fd_in, linebuff, sizeof linebuff - 1); 19236285Sbrian if (n > 0) { 19336285Sbrian if (linebuff[n-1] == '\n') 19436285Sbrian linebuff[--n] = '\0'; 19536285Sbrian else 19636285Sbrian linebuff[n] = '\0'; 19736285Sbrian p->nonewline = 1; /* Maybe command_Decode does a prompt */ 19836285Sbrian prompt_Required(p); 19951005Sbrian if (n) { 20051005Sbrian if ((op = log_PromptContext) == NULL) 20151005Sbrian log_PromptContext = p; 20254914Sbrian if (!command_Decode(bundle, linebuff, n, p, p->src.from)) 20354914Sbrian prompt_Printf(p, "Syntax error\n"); 20451005Sbrian log_PromptContext = op; 20551005Sbrian } 20636285Sbrian } else if (n <= 0) { 20736314Sbrian log_Printf(LogPHASE, "%s: Client connection closed.\n", p->src.from); 20837386Sbrian if (!p->owner) 20937386Sbrian Cleanup(EX_NORMAL); 21036285Sbrian prompt_Destroy(p, 0); 21136285Sbrian } 21236285Sbrian return; 21336285Sbrian } 21436285Sbrian 21536285Sbrian switch (p->TermMode->state) { 21636285Sbrian case DATALINK_CLOSED: 21736285Sbrian prompt_Printf(p, "Link lost, terminal mode.\n"); 21836285Sbrian prompt_TtyCommandMode(p); 21936285Sbrian p->nonewline = 0; 22036285Sbrian prompt_Required(p); 22136285Sbrian return; 22236285Sbrian 22336285Sbrian case DATALINK_READY: 22436285Sbrian break; 22536285Sbrian 22636285Sbrian case DATALINK_OPEN: 22736285Sbrian prompt_Printf(p, "\nPacket mode detected.\n"); 22836285Sbrian prompt_TtyCommandMode(p); 22936285Sbrian p->nonewline = 0; 23036285Sbrian /* We'll get a prompt because of our status change */ 231102413Scharnier /* FALLTHROUGH */ 23236285Sbrian 23336285Sbrian default: 23436285Sbrian /* Wait 'till we're in a state we care about */ 23536285Sbrian return; 23636285Sbrian } 23736285Sbrian 23836285Sbrian /* 23936285Sbrian * We are in terminal mode, decode special sequences 24036285Sbrian */ 24136285Sbrian n = read(p->fd_in, &ch, 1); 24236285Sbrian log_Printf(LogDEBUG, "Got %d bytes (reading from the terminal)\n", n); 24336285Sbrian 24436285Sbrian if (n > 0) { 24537010Sbrian switch (p->readtilde) { 24636285Sbrian case 0: 24736285Sbrian if (ch == '~') 24837010Sbrian p->readtilde = 1; 24936285Sbrian else 25036285Sbrian if (physical_Write(p->TermMode->physical, &ch, n) < 0) { 25137019Sbrian log_Printf(LogWARN, "error writing to modem: %s\n", strerror(errno)); 25236285Sbrian prompt_TtyCommandMode(p); 25336285Sbrian } 25436285Sbrian break; 25536285Sbrian case 1: 25636285Sbrian switch (ch) { 25736285Sbrian case '?': 25836285Sbrian prompt_ShowHelp(p); 25936285Sbrian break; 26036285Sbrian case 'p': 26136285Sbrian datalink_Up(p->TermMode, 0, 1); 26236285Sbrian prompt_Printf(p, "\nPacket mode.\n"); 26336285Sbrian prompt_TtyCommandMode(p); 26436285Sbrian break; 26536285Sbrian case '.': 26636285Sbrian prompt_TtyCommandMode(p); 26736285Sbrian p->nonewline = 0; 26836285Sbrian prompt_Required(p); 26936285Sbrian break; 27036285Sbrian case 't': 27136285Sbrian timer_Show(0, p); 27236285Sbrian break; 27336285Sbrian case 'm': 27437011Sbrian { 27537011Sbrian struct cmdargs arg; 27637011Sbrian 27737011Sbrian arg.cmdtab = NULL; 27837011Sbrian arg.cmd = NULL; 27937011Sbrian arg.argc = 0; 28037011Sbrian arg.argn = 0; 28137011Sbrian arg.argv = NULL; 28237011Sbrian arg.bundle = bundle; 28337011Sbrian arg.cx = p->TermMode; 28437011Sbrian arg.prompt = p; 28598243Sbrian 28637011Sbrian mbuf_Show(&arg); 28737011Sbrian } 28836285Sbrian break; 28936285Sbrian default: 29036285Sbrian if (physical_Write(p->TermMode->physical, &ch, n) < 0) { 29137019Sbrian log_Printf(LogWARN, "error writing to modem: %s\n", strerror(errno)); 29236285Sbrian prompt_TtyCommandMode(p); 29336285Sbrian } 29436285Sbrian break; 29536285Sbrian } 29637010Sbrian p->readtilde = 0; 29736285Sbrian break; 29836285Sbrian } 29936285Sbrian } 30036285Sbrian} 30136285Sbrian 30237141Sbrianstatic int 30358028Sbrianprompt_Write(struct fdescriptor *d, struct bundle *bundle, const fd_set *fdset) 30436285Sbrian{ 30536285Sbrian /* We never want to write here ! */ 30637019Sbrian log_Printf(LogALERT, "prompt_Write: Internal error: Bad call !\n"); 30737141Sbrian return 0; 30836285Sbrian} 30936285Sbrian 31036285Sbrianstruct prompt * 31136285Sbrianprompt_Create(struct server *s, struct bundle *bundle, int fd) 31236285Sbrian{ 31336285Sbrian struct prompt *p = (struct prompt *)malloc(sizeof(struct prompt)); 31436285Sbrian 31536285Sbrian if (p != NULL) { 31636285Sbrian p->desc.type = PROMPT_DESCRIPTOR; 31736285Sbrian p->desc.UpdateSet = prompt_UpdateSet; 31836285Sbrian p->desc.IsSet = prompt_IsSet; 31936285Sbrian p->desc.Read = prompt_Read; 32036285Sbrian p->desc.Write = prompt_Write; 32136285Sbrian 32236285Sbrian if (fd == PROMPT_STD) { 32336431Sbrian char *tty = ttyname(STDIN_FILENO); 32436431Sbrian 32536431Sbrian if (!tty) { 32636431Sbrian free(p); 32736431Sbrian return NULL; 32836431Sbrian } 32936285Sbrian p->fd_in = STDIN_FILENO; 33036285Sbrian p->fd_out = STDOUT_FILENO; 33136285Sbrian p->Term = stdout; 33236285Sbrian p->owner = NULL; 33336285Sbrian p->auth = LOCAL_AUTH; 33436285Sbrian p->src.type = "Controller"; 33536431Sbrian strncpy(p->src.from, tty, sizeof p->src.from - 1); 33636285Sbrian p->src.from[sizeof p->src.from - 1] = '\0'; 33736285Sbrian tcgetattr(p->fd_in, &p->oldtio); /* Save original tty mode */ 33836285Sbrian } else { 33936285Sbrian p->fd_in = p->fd_out = fd; 34036285Sbrian p->Term = fdopen(fd, "a+"); 34136285Sbrian p->owner = s; 34271657Sbrian p->auth = *s->cfg.passwd ? LOCAL_NO_AUTH : LOCAL_AUTH; 34336285Sbrian p->src.type = "unknown"; 34436285Sbrian *p->src.from = '\0'; 34536285Sbrian } 34636285Sbrian p->TermMode = NULL; 34736285Sbrian p->nonewline = 1; 34836285Sbrian p->needprompt = 1; 34937010Sbrian p->readtilde = 0; 35036285Sbrian p->bundle = bundle; 35136285Sbrian log_RegisterPrompt(p); 35236285Sbrian } 35336285Sbrian 35436285Sbrian return p; 35536285Sbrian} 35636285Sbrian 35736285Sbrianvoid 35836285Sbrianprompt_Destroy(struct prompt *p, int verbose) 35936285Sbrian{ 36036431Sbrian if (p) { 36136431Sbrian if (p->Term != stdout) { 36236431Sbrian fclose(p->Term); 36336431Sbrian close(p->fd_in); 36436431Sbrian if (p->fd_out != p->fd_in) 36536431Sbrian close(p->fd_out); 36636431Sbrian if (verbose) 36736431Sbrian log_Printf(LogPHASE, "%s: Client connection dropped.\n", p->src.from); 36836431Sbrian } else 36936431Sbrian prompt_TtyOldMode(p); 37036285Sbrian 37136431Sbrian log_UnRegisterPrompt(p); 37236431Sbrian free(p); 37336431Sbrian } 37436285Sbrian} 37536285Sbrian 37636285Sbrianvoid 37736285Sbrianprompt_Printf(struct prompt *p, const char *fmt,...) 37836285Sbrian{ 37936285Sbrian if (p && p->active) { 38036285Sbrian va_list ap; 38137011Sbrian 38236285Sbrian va_start(ap, fmt); 38337011Sbrian prompt_vPrintf(p, fmt, ap); 38436285Sbrian va_end(ap); 38536285Sbrian } 38636285Sbrian} 38736285Sbrian 38836285Sbrianvoid 38936285Sbrianprompt_vPrintf(struct prompt *p, const char *fmt, va_list ap) 39036285Sbrian{ 39136285Sbrian if (p && p->active) { 39237011Sbrian char nfmt[LINE_LEN]; 39337011Sbrian const char *pfmt; 39437011Sbrian 39537011Sbrian if (p->TermMode) { 39637011Sbrian /* Stuff '\r' in front of '\n' 'cos we're in raw mode */ 39737011Sbrian int len = strlen(fmt); 39837011Sbrian 39945264Sbrian if (len && len < sizeof nfmt - 1 && fmt[len-1] == '\n' && 40045264Sbrian (len == 1 || fmt[len-2] != '\r')) { 40137011Sbrian strcpy(nfmt, fmt); 40237011Sbrian strcpy(nfmt + len - 1, "\r\n"); 40337011Sbrian pfmt = nfmt; 40437011Sbrian } else 40537011Sbrian pfmt = fmt; 40637011Sbrian } else 40737011Sbrian pfmt = fmt; 40837011Sbrian vfprintf(p->Term, pfmt, ap); 40936285Sbrian fflush(p->Term); 41036285Sbrian p->nonewline = 1; 41136285Sbrian } 41236285Sbrian} 41336285Sbrian 41436285Sbrianvoid 41536285Sbrianprompt_TtyInit(struct prompt *p) 41636285Sbrian{ 41736285Sbrian int stat, fd = p ? p->fd_in : STDIN_FILENO; 41836285Sbrian struct termios newtio; 41936285Sbrian 42036285Sbrian stat = fcntl(fd, F_GETFL, 0); 42136285Sbrian if (stat > 0) { 42236285Sbrian stat |= O_NONBLOCK; 42336285Sbrian fcntl(fd, F_SETFL, stat); 42436285Sbrian } 42536285Sbrian 42636285Sbrian if (p) 42736285Sbrian newtio = p->oldtio; 42836285Sbrian else 42936285Sbrian tcgetattr(fd, &newtio); 43036285Sbrian 43136285Sbrian newtio.c_lflag &= ~(ECHO | ISIG | ICANON); 43236285Sbrian newtio.c_iflag = 0; 43336285Sbrian newtio.c_oflag &= ~OPOST; 43436285Sbrian if (!p) 43536285Sbrian newtio.c_cc[VINTR] = _POSIX_VDISABLE; 43636285Sbrian newtio.c_cc[VMIN] = 1; 43736285Sbrian newtio.c_cc[VTIME] = 0; 43836285Sbrian newtio.c_cflag |= CS8; 43936285Sbrian tcsetattr(fd, TCSANOW, &newtio); 44036285Sbrian if (p) 44136285Sbrian p->comtio = newtio; 44236285Sbrian} 44336285Sbrian 44436285Sbrian/* 44536285Sbrian * Set tty into command mode. We allow canonical input and echo processing. 44636285Sbrian */ 44736285Sbrianvoid 44836285Sbrianprompt_TtyCommandMode(struct prompt *p) 44936285Sbrian{ 45036285Sbrian struct termios newtio; 45136285Sbrian int stat; 45236285Sbrian 45336285Sbrian tcgetattr(p->fd_in, &newtio); 45436285Sbrian newtio.c_lflag |= (ECHO | ISIG | ICANON); 45536285Sbrian newtio.c_iflag = p->oldtio.c_iflag; 45636285Sbrian newtio.c_oflag |= OPOST; 45736285Sbrian tcsetattr(p->fd_in, TCSADRAIN, &newtio); 45836285Sbrian 45936285Sbrian stat = fcntl(p->fd_in, F_GETFL, 0); 46036285Sbrian if (stat > 0) { 46136285Sbrian stat |= O_NONBLOCK; 46236285Sbrian fcntl(p->fd_in, F_SETFL, stat); 46336285Sbrian } 46436285Sbrian 46536285Sbrian p->TermMode = NULL; 46636285Sbrian} 46736285Sbrian 46836285Sbrian/* 46936285Sbrian * Set tty into terminal mode which is used while we invoke term command. 47036285Sbrian */ 47136285Sbrianvoid 47236285Sbrianprompt_TtyTermMode(struct prompt *p, struct datalink *dl) 47336285Sbrian{ 47436285Sbrian int stat; 47536285Sbrian 47636285Sbrian if (p->Term == stdout) 47736285Sbrian tcsetattr(p->fd_in, TCSADRAIN, &p->comtio); 47836285Sbrian 47936285Sbrian stat = fcntl(p->fd_in, F_GETFL, 0); 48036285Sbrian if (stat > 0) { 48136285Sbrian stat &= ~O_NONBLOCK; 48236285Sbrian fcntl(p->fd_in, F_SETFL, stat); 48336285Sbrian } 48436285Sbrian p->TermMode = dl; 48536285Sbrian} 48636285Sbrian 48736285Sbrianvoid 48836285Sbrianprompt_TtyOldMode(struct prompt *p) 48936285Sbrian{ 49036285Sbrian int stat; 49136285Sbrian 49236285Sbrian stat = fcntl(p->fd_in, F_GETFL, 0); 49336285Sbrian if (stat > 0) { 49436285Sbrian stat &= ~O_NONBLOCK; 49536285Sbrian fcntl(p->fd_in, F_SETFL, stat); 49636285Sbrian } 49736285Sbrian 49836285Sbrian if (p->Term == stdout) 49936285Sbrian tcsetattr(p->fd_in, TCSADRAIN, &p->oldtio); 50036285Sbrian} 50136285Sbrian 50236285Sbrianpid_t 50336285Sbrianprompt_pgrp(struct prompt *p) 50436285Sbrian{ 50536285Sbrian return tcgetpgrp(p->fd_in); 50636285Sbrian} 50736285Sbrian 50836285Sbrianint 50936285SbrianPasswdCommand(struct cmdargs const *arg) 51036285Sbrian{ 51136285Sbrian const char *pass; 51236285Sbrian 51336285Sbrian if (!arg->prompt) { 51436285Sbrian log_Printf(LogWARN, "passwd: Cannot specify without a prompt\n"); 51536285Sbrian return 0; 51636285Sbrian } 51736285Sbrian 51836285Sbrian if (arg->prompt->owner == NULL) { 51936285Sbrian log_Printf(LogWARN, "passwd: Not required\n"); 52036285Sbrian return 0; 52136285Sbrian } 52236285Sbrian 52336285Sbrian if (arg->argc == arg->argn) 52436285Sbrian pass = ""; 52536285Sbrian else if (arg->argc > arg->argn+1) 52636285Sbrian return -1; 52736285Sbrian else 52836285Sbrian pass = arg->argv[arg->argn]; 52936285Sbrian 53071657Sbrian if (!strcmp(arg->prompt->owner->cfg.passwd, pass)) 53136285Sbrian arg->prompt->auth = LOCAL_AUTH; 53236285Sbrian else 53336285Sbrian arg->prompt->auth = LOCAL_NO_AUTH; 53436285Sbrian 53536285Sbrian return 0; 53636285Sbrian} 53736285Sbrian 53836285Sbrianstatic struct pppTimer bgtimer; 53936285Sbrian 54036285Sbrianstatic void 54136285Sbrianprompt_TimedContinue(void *v) 54236285Sbrian{ 54336285Sbrian prompt_Continue((struct prompt *)v); 54436285Sbrian} 54536285Sbrian 54636285Sbrianvoid 54736285Sbrianprompt_Continue(struct prompt *p) 54836285Sbrian{ 54936285Sbrian timer_Stop(&bgtimer); 55036285Sbrian if (getpgrp() == prompt_pgrp(p)) { 55136285Sbrian prompt_TtyCommandMode(p); 55236285Sbrian p->nonewline = 1; 55336285Sbrian prompt_Required(p); 55436314Sbrian log_ActivatePrompt(p); 55536285Sbrian } else if (!p->owner) { 55636285Sbrian bgtimer.func = prompt_TimedContinue; 55736285Sbrian bgtimer.name = "prompt bg"; 55836285Sbrian bgtimer.load = SECTICKS; 55936285Sbrian bgtimer.arg = p; 56036285Sbrian timer_Start(&bgtimer); 56136285Sbrian } 56236285Sbrian} 56336285Sbrian 56436285Sbrianvoid 56536285Sbrianprompt_Suspend(struct prompt *p) 56636285Sbrian{ 56736285Sbrian if (getpgrp() == prompt_pgrp(p)) { 56836285Sbrian prompt_TtyOldMode(p); 56936314Sbrian log_DeactivatePrompt(p); 57036285Sbrian } 57136285Sbrian} 572