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-rw-r--r--usr.bin/tip/remcap.c426
1 files changed, 0 insertions, 426 deletions
diff --git a/usr.bin/tip/remcap.c b/usr.bin/tip/remcap.c
deleted file mode 100644
index 7a7e0c2..0000000
--- a/usr.bin/tip/remcap.c
+++ /dev/null
@@ -1,426 +0,0 @@
-/*
- * Copyright (c) 1983, 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 sccsid[] = "@(#)remcap.c 8.1 (Berkeley) 6/6/93";
-#endif /* not lint */
-
-/*
- * remcap - routines for dealing with the remote host data base
- *
- * derived from termcap
- */
-#include <sys/types.h>
-#include <fcntl.h>
-#include <ctype.h>
-#include <stdlib.h>
-#include "pathnames.h"
-
-#ifndef BUFSIZ
-#define BUFSIZ 1024
-#endif
-#define MAXHOP 32 /* max number of tc= indirections */
-
-#define tgetent rgetent
-#define tnchktc rnchktc
-#define tnamatch rnamatch
-#define tgetnum rgetnum
-#define tgetflag rgetflag
-#define tgetstr rgetstr
-#define E_TERMCAP RM = _PATH_REMOTE
-#define V_TERMCAP "REMOTE"
-#define V_TERM "HOST"
-
-char *RM;
-
-/*
- * termcap - routines for dealing with the terminal capability data base
- *
- * BUG: Should use a "last" pointer in tbuf, so that searching
- * for capabilities alphabetically would not be a n**2/2
- * process when large numbers of capabilities are given.
- * Note: If we add a last pointer now we will screw up the
- * tc capability. We really should compile termcap.
- *
- * Essentially all the work here is scanning and decoding escapes
- * in string capabilities. We don't use stdio because the editor
- * doesn't, and because living w/o it is not hard.
- */
-
-static char *tbuf;
-static int hopcount; /* detect infinite loops in termcap, init 0 */
-static char *tskip();
-char *tgetstr();
-static char *tdecode();
-static char *remotefile;
-
-/*
- * Get an entry for terminal name in buffer bp,
- * from the termcap file. Parse is very rudimentary;
- * we just notice escaped newlines.
- */
-tgetent(bp, name)
- char *bp, *name;
-{
- char lbuf[BUFSIZ], *cp, *p;
- int rc1, rc2;
-
- remotefile = cp = getenv(V_TERMCAP);
- if (cp == (char *)0 || strcmp(cp, _PATH_REMOTE) == 0) {
- remotefile = cp = _PATH_REMOTE;
- return (getent(bp, name, cp));
- } else {
- if ((rc1 = getent(bp, name, cp)) != 1)
- *bp = '\0';
- remotefile = cp = _PATH_REMOTE;
- rc2 = getent(lbuf, name, cp);
- if (rc1 != 1 && rc2 != 1)
- return (rc2);
- if (rc2 == 1) {
- p = lbuf;
- if (rc1 == 1)
- while (*p++ != ':')
- ;
- if (strlen(bp) + strlen(p) > BUFSIZ) {
- write(2, "Remcap entry too long\n", 23);
- return (-1);
- }
- strcat(bp, p);
- }
- tbuf = bp;
- return (1);
- }
-}
-
-getent(bp, name, cp)
- char *bp, *name, *cp;
-{
- register int c;
- register int i = 0, cnt = 0;
- char ibuf[BUFSIZ], *cp2;
- int tf;
-
- tbuf = bp;
- tf = 0;
- /*
- * TERMCAP can have one of two things in it. It can be the
- * name of a file to use instead of /etc/termcap. In this
- * case it better start with a "/". Or it can be an entry to
- * use so we don't have to read the file. In this case it
- * has to already have the newlines crunched out.
- */
- if (cp && *cp) {
- if (*cp!='/') {
- cp2 = getenv(V_TERM);
- if (cp2 == (char *)0 || strcmp(name,cp2) == 0) {
- strcpy(bp,cp);
- return (tnchktc());
- } else
- tf = open(E_TERMCAP, O_RDONLY);
- } else
- tf = open(RM = cp, O_RDONLY);
- }
- if (tf == 0)
- tf = open(E_TERMCAP, O_RDONLY);
- if (tf < 0)
- return (-1);
- for (;;) {
- cp = bp;
- for (;;) {
- if (i == cnt) {
- cnt = read(tf, ibuf, BUFSIZ);
- if (cnt <= 0) {
- close(tf);
- return (0);
- }
- i = 0;
- }
- c = ibuf[i++];
- if (c == '\n') {
- if (cp > bp && cp[-1] == '\\') {
- cp--;
- continue;
- }
- break;
- }
- if (cp >= bp+BUFSIZ) {
- write(2,"Remcap entry too long\n", 23);
- break;
- } else
- *cp++ = c;
- }
- *cp = 0;
-
- /*
- * The real work for the match.
- */
- if (tnamatch(name)) {
- close(tf);
- return (tnchktc());
- }
- }
-}
-
-/*
- * tnchktc: check the last entry, see if it's tc=xxx. If so,
- * recursively find xxx and append that entry (minus the names)
- * to take the place of the tc=xxx entry. This allows termcap
- * entries to say "like an HP2621 but doesn't turn on the labels".
- * Note that this works because of the left to right scan.
- */
-tnchktc()
-{
- register char *p, *q;
- char tcname[16]; /* name of similar terminal */
- char tcbuf[BUFSIZ];
- char *holdtbuf = tbuf;
- int l;
- char *cp;
-
- p = tbuf + strlen(tbuf) - 2; /* before the last colon */
- while (*--p != ':')
- if (p<tbuf) {
- write(2, "Bad remcap entry\n", 18);
- return (0);
- }
- p++;
- /* p now points to beginning of last field */
- if (p[0] != 't' || p[1] != 'c')
- return (1);
- strcpy(tcname, p+3);
- q = tcname;
- while (*q && *q != ':')
- q++;
- *q = 0;
- if (++hopcount > MAXHOP) {
- write(2, "Infinite tc= loop\n", 18);
- return (0);
- }
- if (getent(tcbuf, tcname, remotefile) != 1) {
- if (strcmp(remotefile, _PATH_REMOTE) == 0)
- return (0);
- else if (getent(tcbuf, tcname, _PATH_REMOTE) != 1)
- return (0);
- }
- for (q = tcbuf; *q++ != ':'; )
- ;
- l = p - holdtbuf + strlen(q);
- if (l > BUFSIZ) {
- write(2, "Remcap entry too long\n", 23);
- q[BUFSIZ - (p-holdtbuf)] = 0;
- }
- strcpy(p, q);
- tbuf = holdtbuf;
- return (1);
-}
-
-/*
- * Tnamatch deals with name matching. The first field of the termcap
- * entry is a sequence of names separated by |'s, so we compare
- * against each such name. The normal : terminator after the last
- * name (before the first field) stops us.
- */
-tnamatch(np)
- char *np;
-{
- register char *Np, *Bp;
-
- Bp = tbuf;
- if (*Bp == '#')
- return (0);
- for (;;) {
- for (Np = np; *Np && *Bp == *Np; Bp++, Np++)
- continue;
- if (*Np == 0 && (*Bp == '|' || *Bp == ':' || *Bp == 0))
- return (1);
- while (*Bp && *Bp != ':' && *Bp != '|')
- Bp++;
- if (*Bp == 0 || *Bp == ':')
- return (0);
- Bp++;
- }
-}
-
-/*
- * Skip to the next field. Notice that this is very dumb, not
- * knowing about \: escapes or any such. If necessary, :'s can be put
- * into the termcap file in octal.
- */
-static char *
-tskip(bp)
- register char *bp;
-{
-
- while (*bp && *bp != ':')
- bp++;
- if (*bp == ':')
- bp++;
- return (bp);
-}
-
-/*
- * Return the (numeric) option id.
- * Numeric options look like
- * li#80
- * i.e. the option string is separated from the numeric value by
- * a # character. If the option is not found we return -1.
- * Note that we handle octal numbers beginning with 0.
- */
-tgetnum(id)
- char *id;
-{
- register int i, base;
- register char *bp = tbuf;
-
- for (;;) {
- bp = tskip(bp);
- if (*bp == 0)
- return (-1);
- if (*bp++ != id[0] || *bp == 0 || *bp++ != id[1])
- continue;
- if (*bp == '@')
- return (-1);
- if (*bp != '#')
- continue;
- bp++;
- base = 10;
- if (*bp == '0')
- base = 8;
- i = 0;
- while (isdigit(*bp))
- i *= base, i += *bp++ - '0';
- return (i);
- }
-}
-
-/*
- * Handle a flag option.
- * Flag options are given "naked", i.e. followed by a : or the end
- * of the buffer. Return 1 if we find the option, or 0 if it is
- * not given.
- */
-tgetflag(id)
- char *id;
-{
- register char *bp = tbuf;
-
- for (;;) {
- bp = tskip(bp);
- if (!*bp)
- return (0);
- if (*bp++ == id[0] && *bp != 0 && *bp++ == id[1]) {
- if (!*bp || *bp == ':')
- return (1);
- else if (*bp == '@')
- return (0);
- }
- }
-}
-
-/*
- * Get a string valued option.
- * These are given as
- * cl=^Z
- * Much decoding is done on the strings, and the strings are
- * placed in area, which is a ref parameter which is updated.
- * No checking on area overflow.
- */
-char *
-tgetstr(id, area)
- char *id, **area;
-{
- register char *bp = tbuf;
-
- for (;;) {
- bp = tskip(bp);
- if (!*bp)
- return (0);
- if (*bp++ != id[0] || *bp == 0 || *bp++ != id[1])
- continue;
- if (*bp == '@')
- return (0);
- if (*bp != '=')
- continue;
- bp++;
- return (tdecode(bp, area));
- }
-}
-
-/*
- * Tdecode does the grung work to decode the
- * string capability escapes.
- */
-static char *
-tdecode(str, area)
- register char *str;
- char **area;
-{
- register char *cp;
- register int c;
- register char *dp;
- int i;
-
- cp = *area;
- while ((c = *str++) && c != ':') {
- switch (c) {
-
- case '^':
- c = *str++ & 037;
- break;
-
- case '\\':
- dp = "E\033^^\\\\::n\nr\rt\tb\bf\f";
- c = *str++;
-nextc:
- if (*dp++ == c) {
- c = *dp++;
- break;
- }
- dp++;
- if (*dp)
- goto nextc;
- if (isdigit(c)) {
- c -= '0', i = 2;
- do
- c <<= 3, c |= *str++ - '0';
- while (--i && isdigit(*str));
- }
- break;
- }
- *cp++ = c;
- }
- *cp++ = 0;
- str = *area;
- *area = cp;
- return (str);
-}
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