diff options
Diffstat (limited to 'usr.bin/rlogin/rlogin.c')
| -rw-r--r-- | usr.bin/rlogin/rlogin.c | 941 |
1 files changed, 0 insertions, 941 deletions
diff --git a/usr.bin/rlogin/rlogin.c b/usr.bin/rlogin/rlogin.c deleted file mode 100644 index 5439c48..0000000 --- a/usr.bin/rlogin/rlogin.c +++ /dev/null @@ -1,941 +0,0 @@ -/* - * Copyright (c) 1983, 1990, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#ifndef lint -static char copyright[] = -"@(#) Copyright (c) 1983, 1990, 1993\n\ - The Regents of the University of California. All rights reserved.\n"; -#endif /* not lint */ - -#ifndef lint -static char sccsid[] = "@(#)rlogin.c 8.1 (Berkeley) 6/6/93"; -#endif /* not lint */ - -/* - * rlogin - remote login - */ -#include <sys/param.h> -#include <sys/socket.h> -#include <sys/time.h> -#include <sys/resource.h> -#include <sys/wait.h> - -#include <netinet/in.h> -#include <netinet/in_systm.h> -#include <netinet/ip.h> - -#include <errno.h> -#include <fcntl.h> -#include <netdb.h> -#include <pwd.h> -#include <setjmp.h> -#include <sgtty.h> -#include <signal.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> - -#ifdef __STDC__ -#include <stdarg.h> -#else -#include <varargs.h> -#endif - -#ifdef KERBEROS -#include <kerberosIV/des.h> -#include <kerberosIV/krb.h> - -#include "krb.h" - -CREDENTIALS cred; -Key_schedule schedule; -int use_kerberos = 1, doencrypt; -char dst_realm_buf[REALM_SZ], *dest_realm = NULL; -#endif - -#ifndef TIOCPKT_WINDOW -#define TIOCPKT_WINDOW 0x80 -#endif - -/* concession to Sun */ -#ifndef SIGUSR1 -#define SIGUSR1 30 -#endif - -int eight, litout, rem; - -int noescape; -u_char escapechar = '~'; - -char *speeds[] = { - "0", "50", "75", "110", "134", "150", "200", "300", "600", "1200", - "1800", "2400", "4800", "9600", "19200", "38400" -}; - -#ifdef OLDSUN -struct winsize { - unsigned short ws_row, ws_col; - unsigned short ws_xpixel, ws_ypixel; -}; -#else -#define get_window_size(fd, wp) ioctl(fd, TIOCGWINSZ, wp) -#endif -struct winsize winsize; - -void catch_child __P((int)); -void copytochild __P((int)); -__dead void doit __P((long)); -__dead void done __P((int)); -void echo __P((char)); -u_int getescape __P((char *)); -void lostpeer __P((int)); -void mode __P((int)); -void msg __P((char *)); -void oob __P((int)); -int reader __P((int)); -void sendwindow __P((void)); -void setsignal __P((int)); -void sigwinch __P((int)); -void stop __P((char)); -__dead void usage __P((void)); -void writer __P((void)); -void writeroob __P((int)); - -#ifdef KERBEROS -void warning __P((const char *, ...)); -#endif -#ifdef OLDSUN -int get_window_size __P((int, struct winsize *)); -#endif - -int -main(argc, argv) - int argc; - char *argv[]; -{ - extern char *optarg; - extern int optind; - struct passwd *pw; - struct servent *sp; - struct sgttyb ttyb; - long omask; - int argoff, ch, dflag, one, uid; - char *host, *p, *user, term[1024]; - - argoff = dflag = 0; - one = 1; - host = user = NULL; - - if (p = rindex(argv[0], '/')) - ++p; - else - p = argv[0]; - - if (strcmp(p, "rlogin")) - host = p; - - /* handle "rlogin host flags" */ - if (!host && argc > 2 && argv[1][0] != '-') { - host = argv[1]; - argoff = 1; - } - -#ifdef KERBEROS -#define OPTIONS "8EKLde:k:l:x" -#else -#define OPTIONS "8EKLde:l:" -#endif - while ((ch = getopt(argc - argoff, argv + argoff, OPTIONS)) != EOF) - switch(ch) { - case '8': - eight = 1; - break; - case 'E': - noescape = 1; - break; - case 'K': -#ifdef KERBEROS - use_kerberos = 0; -#endif - break; - case 'L': - litout = 1; - break; - case 'd': - dflag = 1; - break; - case 'e': - noescape = 0; - escapechar = getescape(optarg); - break; -#ifdef KERBEROS - case 'k': - dest_realm = dst_realm_buf; - (void)strncpy(dest_realm, optarg, REALM_SZ); - break; -#endif - case 'l': - user = optarg; - break; -#ifdef CRYPT -#ifdef KERBEROS - case 'x': - doencrypt = 1; - des_set_key(cred.session, schedule); - break; -#endif -#endif - case '?': - default: - usage(); - } - optind += argoff; - argc -= optind; - argv += optind; - - /* if haven't gotten a host yet, do so */ - if (!host && !(host = *argv++)) - usage(); - - if (*argv) - usage(); - - if (!(pw = getpwuid(uid = getuid()))) { - (void)fprintf(stderr, "rlogin: unknown user id.\n"); - exit(1); - } - if (!user) - user = pw->pw_name; - - sp = NULL; -#ifdef KERBEROS - if (use_kerberos) { - sp = getservbyname((doencrypt ? "eklogin" : "klogin"), "tcp"); - if (sp == NULL) { - use_kerberos = 0; - warning("can't get entry for %s/tcp service", - doencrypt ? "eklogin" : "klogin"); - } - } -#endif - if (sp == NULL) - sp = getservbyname("login", "tcp"); - if (sp == NULL) { - (void)fprintf(stderr, "rlogin: login/tcp: unknown service.\n"); - exit(1); - } - - (void)strcpy(term, (p = getenv("TERM")) ? p : "network"); - if (ioctl(0, TIOCGETP, &ttyb) == 0) { - (void)strcat(term, "/"); - (void)strcat(term, speeds[(int)ttyb.sg_ospeed]); - } - - (void)get_window_size(0, &winsize); - - (void)signal(SIGPIPE, lostpeer); - /* will use SIGUSR1 for window size hack, so hold it off */ - omask = sigblock(sigmask(SIGURG) | sigmask(SIGUSR1)); - /* - * We set SIGURG and SIGUSR1 below so that an - * incoming signal will be held pending rather than being - * discarded. Note that these routines will be ready to get - * a signal by the time that they are unblocked below. - */ - (void)signal(SIGURG, copytochild); - (void)signal(SIGUSR1, writeroob); - -#ifdef KERBEROS -try_connect: - if (use_kerberos) { - struct hostent *hp; - - /* Fully qualify hostname (needed for krb_realmofhost). */ - hp = gethostbyname(host); - if (hp != NULL && !(host = strdup(hp->h_name))) { - (void)fprintf(stderr, "rlogin: %s\n", - strerror(ENOMEM)); - exit(1); - } - - rem = KSUCCESS; - errno = 0; - if (dest_realm == NULL) - dest_realm = krb_realmofhost(host); - -#ifdef CRYPT - if (doencrypt) - rem = krcmd_mutual(&host, sp->s_port, user, term, 0, - dest_realm, &cred, schedule); - else -#endif /* CRYPT */ - rem = krcmd(&host, sp->s_port, user, term, 0, - dest_realm); - if (rem < 0) { - use_kerberos = 0; - sp = getservbyname("login", "tcp"); - if (sp == NULL) { - (void)fprintf(stderr, - "rlogin: unknown service login/tcp.\n"); - exit(1); - } - if (errno == ECONNREFUSED) - warning("remote host doesn't support Kerberos"); - if (errno == ENOENT) - warning("can't provide Kerberos auth data"); - goto try_connect; - } - } else { -#ifdef CRYPT - if (doencrypt) { - (void)fprintf(stderr, - "rlogin: the -x flag requires Kerberos authentication.\n"); - exit(1); - } -#endif /* CRYPT */ - rem = rcmd(&host, sp->s_port, pw->pw_name, user, term, 0); - } -#else - rem = rcmd(&host, sp->s_port, pw->pw_name, user, term, 0); -#endif /* KERBEROS */ - - if (rem < 0) - exit(1); - - if (dflag && - setsockopt(rem, SOL_SOCKET, SO_DEBUG, &one, sizeof(one)) < 0) - (void)fprintf(stderr, "rlogin: setsockopt: %s.\n", - strerror(errno)); - one = IPTOS_LOWDELAY; - if (setsockopt(rem, IPPROTO_IP, IP_TOS, (char *)&one, sizeof(int)) < 0) - perror("rlogin: setsockopt TOS (ignored)"); - - (void)setuid(uid); - doit(omask); - /*NOTREACHED*/ -} - -int child, defflags, deflflags, tabflag; -char deferase, defkill; -struct tchars deftc; -struct ltchars defltc; -struct tchars notc = { -1, -1, -1, -1, -1, -1 }; -struct ltchars noltc = { -1, -1, -1, -1, -1, -1 }; - -void -doit(omask) - long omask; -{ - struct sgttyb sb; - - (void)ioctl(0, TIOCGETP, (char *)&sb); - defflags = sb.sg_flags; - tabflag = defflags & TBDELAY; - defflags &= ECHO | CRMOD; - deferase = sb.sg_erase; - defkill = sb.sg_kill; - (void)ioctl(0, TIOCLGET, &deflflags); - (void)ioctl(0, TIOCGETC, &deftc); - notc.t_startc = deftc.t_startc; - notc.t_stopc = deftc.t_stopc; - (void)ioctl(0, TIOCGLTC, &defltc); - (void)signal(SIGINT, SIG_IGN); - setsignal(SIGHUP); - setsignal(SIGQUIT); - child = fork(); - if (child == -1) { - (void)fprintf(stderr, "rlogin: fork: %s.\n", strerror(errno)); - done(1); - } - if (child == 0) { - mode(1); - if (reader(omask) == 0) { - msg("connection closed."); - exit(0); - } - sleep(1); - msg("\007connection closed."); - exit(1); - } - - /* - * We may still own the socket, and may have a pending SIGURG (or might - * receive one soon) that we really want to send to the reader. When - * one of these comes in, the trap copytochild simply copies such - * signals to the child. We can now unblock SIGURG and SIGUSR1 - * that were set above. - */ - (void)sigsetmask(omask); - (void)signal(SIGCHLD, catch_child); - writer(); - msg("closed connection."); - done(0); -} - -/* trap a signal, unless it is being ignored. */ -void -setsignal(sig) - int sig; -{ - int omask = sigblock(sigmask(sig)); - - if (signal(sig, exit) == SIG_IGN) - (void)signal(sig, SIG_IGN); - (void)sigsetmask(omask); -} - -__dead void -done(status) - int status; -{ - int w, wstatus; - - mode(0); - if (child > 0) { - /* make sure catch_child does not snap it up */ - (void)signal(SIGCHLD, SIG_DFL); - if (kill(child, SIGKILL) >= 0) - while ((w = wait(&wstatus)) > 0 && w != child); - } - exit(status); -} - -int dosigwinch; - -/* - * This is called when the reader process gets the out-of-band (urgent) - * request to turn on the window-changing protocol. - */ -void -writeroob(signo) - int signo; -{ - if (dosigwinch == 0) { - sendwindow(); - (void)signal(SIGWINCH, sigwinch); - } - dosigwinch = 1; -} - -void -catch_child(signo) - int signo; -{ - union wait status; - int pid; - - for (;;) { - pid = wait3((int *)&status, WNOHANG|WUNTRACED, NULL); - if (pid == 0) - return; - /* if the child (reader) dies, just quit */ - if (pid < 0 || (pid == child && !WIFSTOPPED(status))) - done((int)(status.w_termsig | status.w_retcode)); - } - /* NOTREACHED */ -} - -/* - * writer: write to remote: 0 -> line. - * ~. terminate - * ~^Z suspend rlogin process. - * ~<delayed-suspend char> suspend rlogin process, but leave reader alone. - */ -void -writer() -{ - register int bol, local, n; - char c; - - bol = 1; /* beginning of line */ - local = 0; - for (;;) { - n = read(STDIN_FILENO, &c, 1); - if (n <= 0) { - if (n < 0 && errno == EINTR) - continue; - break; - } - /* - * If we're at the beginning of the line and recognize a - * command character, then we echo locally. Otherwise, - * characters are echo'd remotely. If the command character - * is doubled, this acts as a force and local echo is - * suppressed. - */ - if (bol) { - bol = 0; - if (!noescape && c == escapechar) { - local = 1; - continue; - } - } else if (local) { - local = 0; - if (c == '.' || c == deftc.t_eofc) { - echo(c); - break; - } - if (c == defltc.t_suspc || c == defltc.t_dsuspc) { - bol = 1; - echo(c); - stop(c); - continue; - } - if (c != escapechar) -#ifdef CRYPT -#ifdef KERBEROS - if (doencrypt) - (void)des_write(rem, - (char *)&escapechar, 1); - else -#endif -#endif - (void)write(rem, &escapechar, 1); - } - -#ifdef CRYPT -#ifdef KERBEROS - if (doencrypt) { - if (des_write(rem, &c, 1) == 0) { - msg("line gone"); - break; - } - } else -#endif -#endif - if (write(rem, &c, 1) == 0) { - msg("line gone"); - break; - } - bol = c == defkill || c == deftc.t_eofc || - c == deftc.t_intrc || c == defltc.t_suspc || - c == '\r' || c == '\n'; - } -} - -void -#if __STDC__ -echo(register char c) -#else -echo(c) - register char c; -#endif -{ - register char *p; - char buf[8]; - - p = buf; - c &= 0177; - *p++ = escapechar; - if (c < ' ') { - *p++ = '^'; - *p++ = c + '@'; - } else if (c == 0177) { - *p++ = '^'; - *p++ = '?'; - } else - *p++ = c; - *p++ = '\r'; - *p++ = '\n'; - (void)write(STDOUT_FILENO, buf, p - buf); -} - -void -#if __STDC__ -stop(char cmdc) -#else -stop(cmdc) - char cmdc; -#endif -{ - mode(0); - (void)signal(SIGCHLD, SIG_IGN); - (void)kill(cmdc == defltc.t_suspc ? 0 : getpid(), SIGTSTP); - (void)signal(SIGCHLD, catch_child); - mode(1); - sigwinch(0); /* check for size changes */ -} - -void -sigwinch(signo) - int signo; -{ - struct winsize ws; - - if (dosigwinch && get_window_size(0, &ws) == 0 && - bcmp(&ws, &winsize, sizeof(ws))) { - winsize = ws; - sendwindow(); - } -} - -/* - * Send the window size to the server via the magic escape - */ -void -sendwindow() -{ - struct winsize *wp; - char obuf[4 + sizeof (struct winsize)]; - - wp = (struct winsize *)(obuf+4); - obuf[0] = 0377; - obuf[1] = 0377; - obuf[2] = 's'; - obuf[3] = 's'; - wp->ws_row = htons(winsize.ws_row); - wp->ws_col = htons(winsize.ws_col); - wp->ws_xpixel = htons(winsize.ws_xpixel); - wp->ws_ypixel = htons(winsize.ws_ypixel); - -#ifdef CRYPT -#ifdef KERBEROS - if(doencrypt) - (void)des_write(rem, obuf, sizeof(obuf)); - else -#endif -#endif - (void)write(rem, obuf, sizeof(obuf)); -} - -/* - * reader: read from remote: line -> 1 - */ -#define READING 1 -#define WRITING 2 - -jmp_buf rcvtop; -int ppid, rcvcnt, rcvstate; -char rcvbuf[8 * 1024]; - -void -oob(signo) - int signo; -{ - struct sgttyb sb; - int atmark, n, out, rcvd; - char waste[BUFSIZ], mark; - - out = O_RDWR; - rcvd = 0; - while (recv(rem, &mark, 1, MSG_OOB) < 0) { - switch (errno) { - case EWOULDBLOCK: - /* - * Urgent data not here yet. It may not be possible - * to send it yet if we are blocked for output and - * our input buffer is full. - */ - if (rcvcnt < sizeof(rcvbuf)) { - n = read(rem, rcvbuf + rcvcnt, - sizeof(rcvbuf) - rcvcnt); - if (n <= 0) - return; - rcvd += n; - } else { - n = read(rem, waste, sizeof(waste)); - if (n <= 0) - return; - } - continue; - default: - return; - } - } - if (mark & TIOCPKT_WINDOW) { - /* Let server know about window size changes */ - (void)kill(ppid, SIGUSR1); - } - if (!eight && (mark & TIOCPKT_NOSTOP)) { - (void)ioctl(0, TIOCGETP, (char *)&sb); - sb.sg_flags &= ~CBREAK; - sb.sg_flags |= RAW; - (void)ioctl(0, TIOCSETN, (char *)&sb); - notc.t_stopc = -1; - notc.t_startc = -1; - (void)ioctl(0, TIOCSETC, (char *)¬c); - } - if (!eight && (mark & TIOCPKT_DOSTOP)) { - (void)ioctl(0, TIOCGETP, (char *)&sb); - sb.sg_flags &= ~RAW; - sb.sg_flags |= CBREAK; - (void)ioctl(0, TIOCSETN, (char *)&sb); - notc.t_stopc = deftc.t_stopc; - notc.t_startc = deftc.t_startc; - (void)ioctl(0, TIOCSETC, (char *)¬c); - } - if (mark & TIOCPKT_FLUSHWRITE) { - (void)ioctl(1, TIOCFLUSH, (char *)&out); - for (;;) { - if (ioctl(rem, SIOCATMARK, &atmark) < 0) { - (void)fprintf(stderr, "rlogin: ioctl: %s.\n", - strerror(errno)); - break; - } - if (atmark) - break; - n = read(rem, waste, sizeof (waste)); - if (n <= 0) - break; - } - /* - * Don't want any pending data to be output, so clear the recv - * buffer. If we were hanging on a write when interrupted, - * don't want it to restart. If we were reading, restart - * anyway. - */ - rcvcnt = 0; - longjmp(rcvtop, 1); - } - - /* oob does not do FLUSHREAD (alas!) */ - - /* - * If we filled the receive buffer while a read was pending, longjmp - * to the top to restart appropriately. Don't abort a pending write, - * however, or we won't know how much was written. - */ - if (rcvd && rcvstate == READING) - longjmp(rcvtop, 1); -} - -/* reader: read from remote: line -> 1 */ -int -reader(omask) - int omask; -{ - int pid, n, remaining; - char *bufp; - -#if BSD >= 43 || defined(SUNOS4) - pid = getpid(); /* modern systems use positives for pid */ -#else - pid = -getpid(); /* old broken systems use negatives */ -#endif - (void)signal(SIGTTOU, SIG_IGN); - (void)signal(SIGURG, oob); - ppid = getppid(); - (void)fcntl(rem, F_SETOWN, pid); - (void)setjmp(rcvtop); - (void)sigsetmask(omask); - bufp = rcvbuf; - for (;;) { - while ((remaining = rcvcnt - (bufp - rcvbuf)) > 0) { - rcvstate = WRITING; - n = write(STDOUT_FILENO, bufp, remaining); - if (n < 0) { - if (errno != EINTR) - return (-1); - continue; - } - bufp += n; - } - bufp = rcvbuf; - rcvcnt = 0; - rcvstate = READING; - -#ifdef CRYPT -#ifdef KERBEROS - if (doencrypt) - rcvcnt = des_read(rem, rcvbuf, sizeof(rcvbuf)); - else -#endif -#endif - rcvcnt = read(rem, rcvbuf, sizeof (rcvbuf)); - if (rcvcnt == 0) - return (0); - if (rcvcnt < 0) { - if (errno == EINTR) - continue; - (void)fprintf(stderr, "rlogin: read: %s.\n", - strerror(errno)); - return (-1); - } - } -} - -void -mode(f) - int f; -{ - struct ltchars *ltc; - struct sgttyb sb; - struct tchars *tc; - int lflags; - - (void)ioctl(0, TIOCGETP, (char *)&sb); - (void)ioctl(0, TIOCLGET, (char *)&lflags); - switch(f) { - case 0: - sb.sg_flags &= ~(CBREAK|RAW|TBDELAY); - sb.sg_flags |= defflags|tabflag; - tc = &deftc; - ltc = &defltc; - sb.sg_kill = defkill; - sb.sg_erase = deferase; - lflags = deflflags; - break; - case 1: - sb.sg_flags |= (eight ? RAW : CBREAK); - sb.sg_flags &= ~defflags; - /* preserve tab delays, but turn off XTABS */ - if ((sb.sg_flags & TBDELAY) == XTABS) - sb.sg_flags &= ~TBDELAY; - tc = ¬c; - ltc = &noltc; - sb.sg_kill = sb.sg_erase = -1; - if (litout) - lflags |= LLITOUT; - break; - default: - return; - } - (void)ioctl(0, TIOCSLTC, (char *)ltc); - (void)ioctl(0, TIOCSETC, (char *)tc); - (void)ioctl(0, TIOCSETN, (char *)&sb); - (void)ioctl(0, TIOCLSET, (char *)&lflags); -} - -void -lostpeer(signo) - int signo; -{ - (void)signal(SIGPIPE, SIG_IGN); - msg("\007connection closed."); - done(1); -} - -/* copy SIGURGs to the child process. */ -void -copytochild(signo) - int signo; -{ - (void)kill(child, SIGURG); -} - -void -msg(str) - char *str; -{ - (void)fprintf(stderr, "rlogin: %s\r\n", str); -} - -#ifdef KERBEROS -/* VARARGS */ -void -#if __STDC__ -warning(const char *fmt, ...) -#else -warning(fmt, va_alist) - char *fmt; - va_dcl -#endif -{ - va_list ap; - - (void)fprintf(stderr, "rlogin: warning, using standard rlogin: "); -#ifdef __STDC__ - va_start(ap, fmt); -#else - va_start(ap); -#endif - vfprintf(stderr, fmt, ap); - va_end(ap); - (void)fprintf(stderr, ".\n"); -} -#endif - -__dead void -usage() -{ - (void)fprintf(stderr, - "usage: rlogin [ -%s]%s[-e char] [ -l username ] host\n", -#ifdef KERBEROS -#ifdef CRYPT - "8EKLx", " [-k realm] "); -#else - "8EKL", " [-k realm] "); -#endif -#else - "8EL", " "); -#endif - exit(1); -} - -/* - * The following routine provides compatibility (such as it is) between older - * Suns and others. Suns have only a `ttysize', so we convert it to a winsize. - */ -#ifdef OLDSUN -int -get_window_size(fd, wp) - int fd; - struct winsize *wp; -{ - struct ttysize ts; - int error; - - if ((error = ioctl(0, TIOCGSIZE, &ts)) != 0) - return (error); - wp->ws_row = ts.ts_lines; - wp->ws_col = ts.ts_cols; - wp->ws_xpixel = 0; - wp->ws_ypixel = 0; - return (0); -} -#endif - -u_int -getescape(p) - register char *p; -{ - long val; - int len; - - if ((len = strlen(p)) == 1) /* use any single char, including '\' */ - return ((u_int)*p); - /* otherwise, \nnn */ - if (*p == '\\' && len >= 2 && len <= 4) { - val = strtol(++p, NULL, 8); - for (;;) { - if (!*++p) - return ((u_int)val); - if (*p < '0' || *p > '8') - break; - } - } - msg("illegal option value -- e"); - usage(); - /* NOTREACHED */ -} |
