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-rw-r--r--usr.sbin/pppctl/pppctl.c680
1 files changed, 0 insertions, 680 deletions
diff --git a/usr.sbin/pppctl/pppctl.c b/usr.sbin/pppctl/pppctl.c
deleted file mode 100644
index d8e7b42..0000000
--- a/usr.sbin/pppctl/pppctl.c
+++ /dev/null
@@ -1,680 +0,0 @@
-/*-
- * Copyright (c) 1997 Brian Somers <brian@Awfulhak.org>
- * 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.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
- */
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include <sys/types.h>
-
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#include <sys/un.h>
-#include <netdb.h>
-
-#include <sys/time.h>
-#include <err.h>
-#include <errno.h>
-#include <histedit.h>
-#include <semaphore.h>
-#include <pthread.h>
-#include <setjmp.h>
-#include <signal.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <time.h>
-#include <unistd.h>
-
-#define LINELEN 2048
-
-/* Data passed to the threads we create */
-struct thread_data {
- EditLine *edit; /* libedit stuff */
- History *hist; /* libedit stuff */
- pthread_t trm; /* Terminal thread (for pthread_kill()) */
- int ppp; /* ppp descriptor */
-};
-
-/* Flags passed to Receive() */
-#define REC_PASSWD (1) /* Handle a password request from ppp */
-#define REC_SHOW (2) /* Show everything except prompts */
-#define REC_VERBOSE (4) /* Show everything */
-
-static char *passwd;
-static char *prompt; /* Tell libedit what the current prompt is */
-static int data = -1; /* setjmp() has been done when data != -1 */
-static jmp_buf pppdead; /* Jump the Terminal thread out of el_gets() */
-static int timetogo; /* Tell the Monitor thread to exit */
-static sem_t sem_select; /* select() co-ordination between threads */
-static int TimedOut; /* Set if our connect() timed out */
-static int want_sem_post; /* Need to let the Monitor thread in ? */
-
-/*
- * How to use pppctl...
- */
-static int
-usage()
-{
- fprintf(stderr, "usage: pppctl [-v] [-t n] [-p passwd] "
- "Port|LocalSock [command[;command]...]\n");
- fprintf(stderr, " -v tells pppctl to output all"
- " conversation\n");
- fprintf(stderr, " -t n specifies a timeout of n"
- " seconds when connecting (default 2)\n");
- fprintf(stderr, " -p passwd specifies your password\n");
- exit(1);
-}
-
-/*
- * Handle the SIGALRM received due to a connect() timeout.
- */
-static void
-Timeout(int Sig)
-{
- TimedOut = 1;
-}
-
-/*
- * A callback routine for libedit to find out what the current prompt is.
- * All the work is done in Receive() below.
- */
-static char *
-GetPrompt(EditLine *e)
-{
- if (prompt == NULL)
- prompt = "";
- return prompt;
-}
-
-/*
- * Receive data from the ppp descriptor.
- * We also handle password prompts here (if asked via the `display' arg)
- * and buffer what our prompt looks like (via the `prompt' global).
- */
-static int
-Receive(int fd, int display)
-{
- static char Buffer[LINELEN];
- struct timeval t;
- int Result;
- char *last;
- fd_set f;
- int len;
- int err;
-
- FD_ZERO(&f);
- FD_SET(fd, &f);
- t.tv_sec = 0;
- t.tv_usec = 100000;
- prompt = Buffer;
- len = 0;
-
- while (Result = read(fd, Buffer+len, sizeof(Buffer)-len-1), Result != -1) {
- if (Result == 0) {
- Result = -1;
- break;
- }
- len += Result;
- Buffer[len] = '\0';
- if (len > 2 && !strcmp(Buffer+len-2, "> ")) {
- prompt = strrchr(Buffer, '\n');
- if (display & (REC_SHOW|REC_VERBOSE)) {
- if (display & REC_VERBOSE)
- last = Buffer+len-1;
- else
- last = prompt;
- if (last) {
- last++;
- write(STDOUT_FILENO, Buffer, last-Buffer);
- }
- }
- prompt = prompt == NULL ? Buffer : prompt+1;
- for (last = Buffer+len-2; last > Buffer && *last != ' '; last--)
- ;
- if (last > Buffer+3 && !strncmp(last-3, " on", 3)) {
- /* a password is required ! */
- if (display & REC_PASSWD) {
- /* password time */
- if (!passwd)
- passwd = getpass("Password: ");
- sprintf(Buffer, "passwd %s\n", passwd);
- memset(passwd, '\0', strlen(passwd));
- if (display & REC_VERBOSE)
- write(STDOUT_FILENO, Buffer, strlen(Buffer));
- write(fd, Buffer, strlen(Buffer));
- memset(Buffer, '\0', strlen(Buffer));
- return Receive(fd, display & ~REC_PASSWD);
- }
- Result = 1;
- } else
- Result = 0;
- break;
- } else
- prompt = "";
- if (len == sizeof Buffer - 1) {
- int flush;
- if ((last = strrchr(Buffer, '\n')) == NULL)
- /* Yeuch - this is one mother of a line ! */
- flush = sizeof Buffer / 2;
- else
- flush = last - Buffer + 1;
- write(STDOUT_FILENO, Buffer, flush);
- strcpy(Buffer, Buffer + flush);
- len -= flush;
- }
- if ((Result = select(fd + 1, &f, NULL, NULL, &t)) <= 0) {
- err = Result == -1 ? errno : 0;
- if (len)
- write(STDOUT_FILENO, Buffer, len);
- if (err == EINTR)
- continue;
- break;
- }
- }
-
- return Result;
-}
-
-/*
- * Handle being told by the Monitor thread that there's data to be read
- * on the ppp descriptor.
- *
- * Note, this is a signal handler - be careful of what we do !
- */
-static void
-InputHandler(int sig)
-{
- static char buf[LINELEN];
- struct timeval t;
- int len;
- fd_set f;
-
- if (data != -1) {
- FD_ZERO(&f);
- FD_SET(data, &f);
- t.tv_sec = t.tv_usec = 0;
-
- if (select(data + 1, &f, NULL, NULL, &t) > 0) {
- len = read(data, buf, sizeof buf);
-
- if (len > 0)
- write(STDOUT_FILENO, buf, len);
- else if (data != -1)
- longjmp(pppdead, -1);
- }
-
- sem_post(&sem_select);
- } else
- /* Don't let the Monitor thread in 'till we've set ``data'' up again */
- want_sem_post = 1;
-}
-
-/*
- * This is a simple wrapper for el_gets(), allowing our SIGUSR1 signal
- * handler (above) to take effect only after we've done a setjmp().
- *
- * We don't want it to do anything outside of here as we're going to
- * service the ppp descriptor anyway.
- */
-static const char *
-SmartGets(EditLine *e, int *count, int fd)
-{
- const char *result;
-
- if (setjmp(pppdead))
- result = NULL;
- else {
- data = fd;
- if (want_sem_post)
- /* Let the Monitor thread in again */
- sem_post(&sem_select);
- result = el_gets(e, count);
- }
-
- data = -1;
-
- return result;
-}
-
-/*
- * The Terminal thread entry point.
- *
- * The bulk of the interactive work is done here. We read the terminal,
- * write the results to our ppp descriptor and read the results back.
- *
- * While reading the terminal (using el_gets()), it's possible to take
- * a SIGUSR1 from the Monitor thread, telling us that the ppp descriptor
- * has some data. The data is read and displayed by the signal handler
- * itself.
- */
-static void *
-Terminal(void *v)
-{
- struct sigaction act, oact;
- struct thread_data *td;
- const char *l;
- int len;
-#ifndef __OpenBSD__
- HistEvent hev = { 0, "" };
-#endif
-
- act.sa_handler = InputHandler;
- sigemptyset(&act.sa_mask);
- act.sa_flags = SA_RESTART;
- sigaction(SIGUSR1, &act, &oact);
-
- td = (struct thread_data *)v;
- want_sem_post = 1;
-
- while ((l = SmartGets(td->edit, &len, td->ppp))) {
- if (len > 1)
-#ifdef __OpenBSD__
- history(td->hist, H_ENTER, l);
-#else
- history(td->hist, &hev, H_ENTER, l);
-#endif
- write(td->ppp, l, len);
- if (Receive(td->ppp, REC_SHOW) != 0)
- break;
- }
-
- return NULL;
-}
-
-/*
- * The Monitor thread entry point.
- *
- * This thread simply monitors our ppp descriptor. When there's something
- * to read, a SIGUSR1 is sent to the Terminal thread.
- *
- * sem_select() is used by the Terminal thread to keep us from sending
- * flurries of SIGUSR1s, and is used from the main thread to wake us up
- * when it's time to exit.
- */
-static void *
-Monitor(void *v)
-{
- struct thread_data *td;
- fd_set f;
- int ret;
-
- td = (struct thread_data *)v;
- FD_ZERO(&f);
- FD_SET(td->ppp, &f);
-
- sem_wait(&sem_select);
- while (!timetogo)
- if ((ret = select(td->ppp + 1, &f, NULL, NULL, NULL)) > 0) {
- pthread_kill(td->trm, SIGUSR1);
- sem_wait(&sem_select);
- }
-
- return NULL;
-}
-
-static const char *
-sockaddr_ntop(const struct sockaddr *sa)
-{
- const void *addr;
- static char addrbuf[INET6_ADDRSTRLEN];
-
- switch (sa->sa_family) {
- case AF_INET:
- addr = &((const struct sockaddr_in *)sa)->sin_addr;
- break;
- case AF_UNIX:
- addr = &((const struct sockaddr_un *)sa)->sun_path;
- break;
- case AF_INET6:
- addr = &((const struct sockaddr_in6 *)sa)->sin6_addr;
- break;
- default:
- return NULL;
- }
- inet_ntop(sa->sa_family, addr, addrbuf, sizeof(addrbuf));
- return addrbuf;
-}
-
-/*
- * Connect to ppp using either a local domain socket or a tcp socket.
- *
- * If we're given arguments, process them and quit, otherwise create two
- * threads to handle interactive mode.
- */
-int
-main(int argc, char **argv)
-{
- struct sockaddr_un ifsun;
- int n, arg, fd, len, verbose, save_errno, hide1, hide1off, hide2;
- unsigned TimeoutVal;
- char *DoneWord = "x", *next, *start;
- struct sigaction act, oact;
- void *thread_ret;
- pthread_t mon;
- char Command[LINELEN];
- char Buffer[LINELEN];
-
- verbose = 0;
- TimeoutVal = 2;
- hide1 = hide1off = hide2 = 0;
-
- for (arg = 1; arg < argc; arg++)
- if (*argv[arg] == '-') {
- for (start = argv[arg] + 1; *start; start++)
- switch (*start) {
- case 't':
- TimeoutVal = (unsigned)atoi
- (start[1] ? start + 1 : argv[++arg]);
- start = DoneWord;
- break;
-
- case 'v':
- verbose = REC_VERBOSE;
- break;
-
- case 'p':
- if (start[1]) {
- hide1 = arg;
- hide1off = start - argv[arg];
- passwd = start + 1;
- } else {
- hide1 = arg;
- hide1off = start - argv[arg];
- passwd = argv[++arg];
- hide2 = arg;
- }
- start = DoneWord;
- break;
-
- default:
- usage();
- }
- }
- else
- break;
-
-
- if (argc < arg + 1)
- usage();
-
- if (hide1) {
- char title[1024];
- int pos, harg;
-
- for (harg = pos = 0; harg < argc; harg++)
- if (harg == 0 || harg != hide2) {
- if (harg == 0 || harg != hide1)
- n = snprintf(title + pos, sizeof title - pos, "%s%s",
- harg ? " " : "", argv[harg]);
- else if (hide1off > 1)
- n = snprintf(title + pos, sizeof title - pos, " %.*s",
- hide1off, argv[harg]);
- else
- n = 0;
- if (n < 0 || n >= sizeof title - pos)
- break;
- pos += n;
- }
-#ifdef __FreeBSD__
- setproctitle("-%s", title);
-#else
- setproctitle("%s", title);
-#endif
- }
-
- if (*argv[arg] == '/') {
- memset(&ifsun, '\0', sizeof ifsun);
- ifsun.sun_len = strlen(argv[arg]);
- if (ifsun.sun_len > sizeof ifsun.sun_path - 1) {
- warnx("%s: path too long", argv[arg]);
- return 1;
- }
- ifsun.sun_family = AF_LOCAL;
- strcpy(ifsun.sun_path, argv[arg]);
-
- if (fd = socket(AF_LOCAL, SOCK_STREAM, 0), fd < 0) {
- warnx("cannot create local domain socket");
- return 2;
- }
- if (connect(fd, (struct sockaddr *)&ifsun, sizeof(ifsun)) < 0) {
- if (errno)
- warn("cannot connect to socket %s", argv[arg]);
- else
- warnx("cannot connect to socket %s", argv[arg]);
- close(fd);
- return 3;
- }
- } else {
- char *addr, *p, *port;
- const char *caddr;
- struct addrinfo hints, *res, *pai;
- int gai;
- char local[] = "localhost";
-
- addr = argv[arg];
- if (addr[strspn(addr, "0123456789")] == '\0') {
- /* port on local machine */
- port = addr;
- addr = local;
- } else if (*addr == '[') {
- /* [addr]:port */
- if ((p = strchr(addr, ']')) == NULL) {
- warnx("%s: mismatched '['", addr);
- return 1;
- }
- addr++;
- *p++ = '\0';
- if (*p != ':') {
- warnx("%s: missing port", addr);
- return 1;
- }
- port = ++p;
- } else {
- /* addr:port */
- p = addr + strcspn(addr, ":");
- if (*p != ':') {
- warnx("%s: missing port", addr);
- return 1;
- }
- *p++ = '\0';
- port = p;
- }
- memset(&hints, 0, sizeof(hints));
- hints.ai_socktype = SOCK_STREAM;
- gai = getaddrinfo(addr, port, &hints, &res);
- if (gai != 0) {
- warnx("%s: %s", addr, gai_strerror(gai));
- return 1;
- }
- for (pai = res; pai != NULL; pai = pai->ai_next) {
- if (fd = socket(pai->ai_family, pai->ai_socktype,
- pai->ai_protocol), fd < 0) {
- warnx("cannot create socket");
- continue;
- }
- TimedOut = 0;
- if (TimeoutVal) {
- act.sa_handler = Timeout;
- sigemptyset(&act.sa_mask);
- act.sa_flags = 0;
- sigaction(SIGALRM, &act, &oact);
- alarm(TimeoutVal);
- }
- if (connect(fd, pai->ai_addr, pai->ai_addrlen) == 0)
- break;
- if (TimeoutVal) {
- save_errno = errno;
- alarm(0);
- sigaction(SIGALRM, &oact, 0);
- errno = save_errno;
- }
- caddr = sockaddr_ntop(pai->ai_addr);
- if (caddr == NULL)
- caddr = argv[arg];
- if (TimedOut)
- warnx("timeout: cannot connect to %s", caddr);
- else {
- if (errno)
- warn("cannot connect to %s", caddr);
- else
- warnx("cannot connect to %s", caddr);
- }
- close(fd);
- }
- freeaddrinfo(res);
- if (pai == NULL)
- return 1;
- if (TimeoutVal) {
- alarm(0);
- sigaction(SIGALRM, &oact, 0);
- }
- }
-
- len = 0;
- Command[sizeof(Command)-1] = '\0';
- for (arg++; arg < argc; arg++) {
- if (len && len < sizeof(Command)-1)
- strcpy(Command+len++, " ");
- strncpy(Command+len, argv[arg], sizeof(Command)-len-1);
- len += strlen(Command+len);
- }
-
- switch (Receive(fd, verbose | REC_PASSWD)) {
- case 1:
- fprintf(stderr, "Password incorrect\n");
- break;
-
- case 0:
- passwd = NULL;
- if (len == 0) {
- struct thread_data td;
- const char *env;
- int size;
-#ifndef __OpenBSD__
- HistEvent hev = { 0, "" };
-#endif
-
- td.hist = history_init();
- if ((env = getenv("EL_SIZE"))) {
- size = atoi(env);
- if (size < 0)
- size = 20;
- } else
- size = 20;
-#ifdef __OpenBSD__
- history(td.hist, H_EVENT, size);
- td.edit = el_init("pppctl", stdin, stdout);
-#else
- history(td.hist, &hev, H_SETSIZE, size);
- td.edit = el_init("pppctl", stdin, stdout, stderr);
-#endif
- el_source(td.edit, NULL);
- el_set(td.edit, EL_PROMPT, GetPrompt);
- if ((env = getenv("EL_EDITOR"))) {
- if (!strcmp(env, "vi"))
- el_set(td.edit, EL_EDITOR, "vi");
- else if (!strcmp(env, "emacs"))
- el_set(td.edit, EL_EDITOR, "emacs");
- }
- el_set(td.edit, EL_SIGNAL, 1);
- el_set(td.edit, EL_HIST, history, (const char *)td.hist);
-
- td.ppp = fd;
- td.trm = NULL;
-
- /*
- * We create two threads. The Terminal thread does all the
- * work while the Monitor thread simply tells the Terminal
- * thread when ``fd'' becomes readable. The telling is done
- * by sending a SIGUSR1 to the Terminal thread. The
- * sem_select semaphore is used to prevent the monitor
- * thread from firing excessive signals at the Terminal
- * thread (it's abused for exit handling too - see below).
- *
- * The Terminal thread never uses td.trm !
- */
- sem_init(&sem_select, 0, 0);
-
- pthread_create(&td.trm, NULL, Terminal, &td);
- pthread_create(&mon, NULL, Monitor, &td);
-
- /* Wait for the terminal thread to finish */
- pthread_join(td.trm, &thread_ret);
- fprintf(stderr, "Connection closed\n");
-
- /* Get rid of the monitor thread by abusing sem_select */
- timetogo = 1;
- close(fd);
- fd = -1;
- sem_post(&sem_select);
- pthread_join(mon, &thread_ret);
-
- /* Restore our terminal and release resources */
- el_end(td.edit);
- history_end(td.hist);
- sem_destroy(&sem_select);
- } else {
- start = Command;
- do {
- next = strchr(start, ';');
- while (*start == ' ' || *start == '\t')
- start++;
- if (next)
- *next = '\0';
- strcpy(Buffer, start);
- Buffer[sizeof(Buffer)-2] = '\0';
- strcat(Buffer, "\n");
- if (verbose)
- write(STDOUT_FILENO, Buffer, strlen(Buffer));
- write(fd, Buffer, strlen(Buffer));
- if (Receive(fd, verbose | REC_SHOW) != 0) {
- fprintf(stderr, "Connection closed\n");
- break;
- }
- if (next)
- start = ++next;
- } while (next && *next);
- if (verbose)
- write(STDOUT_FILENO, "quit\n", 5);
- write(fd, "quit\n", 5);
- while (Receive(fd, verbose | REC_SHOW) == 0)
- ;
- if (verbose)
- puts("");
- }
- break;
-
- default:
- warnx("ppp is not responding");
- break;
- }
-
- if (fd != -1)
- close(fd);
-
- return 0;
-}
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