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- /*
- * Copyright (c) 1983 The Regents of the University of California.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms are permitted
- * provided that the above copyright notice and this paragraph are
- * duplicated in all such forms and that any documentation,
- * advertising materials, and other materials related to such
- * distribution and use acknowledge that the software was developed
- * by the University of California, Berkeley. The name of the
- * University may not be used to endorse or promote products derived
- * from this software without specific prior written permission.
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
- * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
- */
-
- #ifndef lint
- static char sccsid[] = "@(#)tipout.c 5.2 (Berkeley) 9/2/88";
- #endif /* not lint */
-
- #include "tip.h"
- /*
- * tip
- *
- * lower fork of tip -- handles passive side
- * reading from the remote host
- */
-
- static jmp_buf sigbuf;
-
- /*
- * TIPOUT wait state routine --
- * sent by TIPIN when it wants to posses the remote host
- */
- sigfunc_t
- intIOT()
- {
-
- write(repdes[1],&ccc,1);
- read(fildes[0], &ccc,1);
- longjmp(sigbuf, 1);
- }
-
- /*
- * Scripting command interpreter --
- * accepts script file name over the pipe and acts accordingly
- */
- sigfunc_t
- intEMT()
- {
- char c, line[256];
- register char *pline = line;
- char reply;
-
- read(fildes[0], &c, 1);
- while (c != '\n') {
- *pline++ = c;
- read(fildes[0], &c, 1);
- }
- *pline = '\0';
- if (boolean(value(SCRIPT)) && fscript != NULL)
- fclose(fscript);
- if (pline == line) {
- boolean(value(SCRIPT)) = FALSE;
- reply = 'y';
- } else {
- if ((fscript = fopen(line, "a")) == NULL)
- reply = 'n';
- else {
- reply = 'y';
- boolean(value(SCRIPT)) = TRUE;
- }
- }
- write(repdes[1], &reply, 1);
- longjmp(sigbuf, 1);
- }
-
- sigfunc_t
- intTERM()
- {
-
- if (boolean(value(SCRIPT)) && fscript != NULL)
- fclose(fscript);
- finish();
- }
-
- sigfunc_t
- intSYS()
- {
-
- boolean(value(BEAUTIFY)) = !boolean(value(BEAUTIFY));
- longjmp(sigbuf, 1);
- }
-
- /*
- * ****TIPOUT TIPOUT****
- */
- tipout()
- {
- char buf[BUFSIZ];
- register char *cp;
- register int cnt;
- extern int errno;
- int omask;
-
- signal(SIGINT, SIG_IGN);
- signal(SIGQUIT, SIG_IGN);
- signal(SIGEMT, intEMT); /* attention from TIPIN */
- signal(SIGTERM, intTERM); /* time to go signal */
- signal(SIGIOT, intIOT); /* scripting going on signal */
- signal(SIGHUP, intTERM); /* for dial-ups */
- signal(SIGSYS, intSYS); /* beautify toggle */
- (void) setjmp(sigbuf);
- for (omask = 0;; sigsetmask(omask)) {
- cnt = read(FD, buf, BUFSIZ);
- if (cnt <= 0) {
- /* lost carrier */
- if (cnt < 0 && errno == EIO) {
- sigblock(sigmask(SIGTERM));
- intTERM();
- /*NOTREACHED*/
- }
- continue;
- }
- #define ALLSIGS sigmask(SIGEMT)|sigmask(SIGTERM)|sigmask(SIGIOT)|sigmask(SIGSYS)
- omask = sigblock(ALLSIGS);
- for (cp = buf; cp < buf + cnt; cp++)
- *cp &= 0177;
- write(1, buf, cnt);
- if (boolean(value(SCRIPT)) && fscript != NULL) {
- if (!boolean(value(BEAUTIFY))) {
- fwrite(buf, 1, cnt, fscript);
- continue;
- }
- for (cp = buf; cp < buf + cnt; cp++)
- if ((*cp >= ' ' && *cp <= '~') ||
- any(*cp, value(EXCEPTIONS)))
- putc(*cp, fscript);
- }
- }
- }
-