projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 051b1e55 | 1 | /* |
| c9686c12 KB |
2 | * Copyright (c) 1983 The Regents of the University of California. |
| 3 | * All rights reserved. | |
| 4 | * | |
| cb956e54 | 5 | * %sccs.include.redist.c% |
| 051b1e55 DF |
6 | */ |
| 7 | ||
| 05862919 | 8 | #ifndef lint |
| cb956e54 | 9 | static char sccsid[] = "@(#)tipout.c 5.3 (Berkeley) %G%"; |
| c9686c12 | 10 | #endif /* not lint */ |
| 05862919 | 11 | |
| eed8c72e BJ |
12 | #include "tip.h" |
| 13 | /* | |
| 14 | * tip | |
| 15 | * | |
| 16 | * lower fork of tip -- handles passive side | |
| 17 | * reading from the remote host | |
| 18 | */ | |
| 19 | ||
| 05862919 | 20 | static jmp_buf sigbuf; |
| 6b46907f | 21 | |
| eed8c72e BJ |
22 | /* |
| 23 | * TIPOUT wait state routine -- | |
| 24 | * sent by TIPIN when it wants to posses the remote host | |
| 25 | */ | |
| 26 | intIOT() | |
| 27 | { | |
| 05862919 | 28 | |
| eed8c72e BJ |
29 | write(repdes[1],&ccc,1); |
| 30 | read(fildes[0], &ccc,1); | |
| 05862919 | 31 | longjmp(sigbuf, 1); |
| eed8c72e BJ |
32 | } |
| 33 | ||
| 34 | /* | |
| 35 | * Scripting command interpreter -- | |
| 36 | * accepts script file name over the pipe and acts accordingly | |
| 37 | */ | |
| 38 | intEMT() | |
| 39 | { | |
| 40 | char c, line[256]; | |
| 41 | register char *pline = line; | |
| 42 | char reply; | |
| 43 | ||
| eed8c72e | 44 | read(fildes[0], &c, 1); |
| 3f48242d | 45 | while (c != '\n') { |
| eed8c72e BJ |
46 | *pline++ = c; |
| 47 | read(fildes[0], &c, 1); | |
| 48 | } | |
| 49 | *pline = '\0'; | |
| 50 | if (boolean(value(SCRIPT)) && fscript != NULL) | |
| 51 | fclose(fscript); | |
| 52 | if (pline == line) { | |
| 53 | boolean(value(SCRIPT)) = FALSE; | |
| 54 | reply = 'y'; | |
| 55 | } else { | |
| 56 | if ((fscript = fopen(line, "a")) == NULL) | |
| 57 | reply = 'n'; | |
| 58 | else { | |
| 59 | reply = 'y'; | |
| 60 | boolean(value(SCRIPT)) = TRUE; | |
| 61 | } | |
| 62 | } | |
| 63 | write(repdes[1], &reply, 1); | |
| 05862919 | 64 | longjmp(sigbuf, 1); |
| eed8c72e BJ |
65 | } |
| 66 | ||
| 67 | intTERM() | |
| 68 | { | |
| 05862919 | 69 | |
| eed8c72e BJ |
70 | if (boolean(value(SCRIPT)) && fscript != NULL) |
| 71 | fclose(fscript); | |
| 72 | exit(0); | |
| 73 | } | |
| 74 | ||
| 75 | intSYS() | |
| 76 | { | |
| 05862919 | 77 | |
| eed8c72e | 78 | boolean(value(BEAUTIFY)) = !boolean(value(BEAUTIFY)); |
| 05862919 | 79 | longjmp(sigbuf, 1); |
| eed8c72e BJ |
80 | } |
| 81 | ||
| 82 | /* | |
| 83 | * ****TIPOUT TIPOUT**** | |
| 84 | */ | |
| 85 | tipout() | |
| 86 | { | |
| c731dacc BS |
87 | char buf[BUFSIZ]; |
| 88 | register char *cp; | |
| 89 | register int cnt; | |
| e2326c44 | 90 | extern int errno; |
| 05862919 | 91 | int omask; |
| c731dacc | 92 | |
| eed8c72e BJ |
93 | signal(SIGINT, SIG_IGN); |
| 94 | signal(SIGQUIT, SIG_IGN); | |
| 95 | signal(SIGEMT, intEMT); /* attention from TIPIN */ | |
| 96 | signal(SIGTERM, intTERM); /* time to go signal */ | |
| 97 | signal(SIGIOT, intIOT); /* scripting going on signal */ | |
| 98 | signal(SIGHUP, intTERM); /* for dial-ups */ | |
| 99 | signal(SIGSYS, intSYS); /* beautify toggle */ | |
| 05862919 SL |
100 | (void) setjmp(sigbuf); |
| 101 | for (omask = 0;; sigsetmask(omask)) { | |
| 102 | cnt = read(FD, buf, BUFSIZ); | |
| e2326c44 SL |
103 | if (cnt <= 0) { |
| 104 | /* lost carrier */ | |
| 105 | if (cnt < 0 && errno == EIO) { | |
| 1722c749 | 106 | sigblock(sigmask(SIGTERM)); |
| e2326c44 SL |
107 | intTERM(); |
| 108 | /*NOTREACHED*/ | |
| 109 | } | |
| 110 | continue; | |
| 111 | } | |
| 1722c749 | 112 | #define ALLSIGS sigmask(SIGEMT)|sigmask(SIGTERM)|sigmask(SIGIOT)|sigmask(SIGSYS) |
| 05862919 | 113 | omask = sigblock(ALLSIGS); |
| c731dacc BS |
114 | for (cp = buf; cp < buf + cnt; cp++) |
| 115 | *cp &= 0177; | |
| 116 | write(1, buf, cnt); | |
| eed8c72e | 117 | if (boolean(value(SCRIPT)) && fscript != NULL) { |
| c731dacc | 118 | if (!boolean(value(BEAUTIFY))) { |
| 3463e9c6 | 119 | fwrite(buf, 1, cnt, fscript); |
| c731dacc BS |
120 | continue; |
| 121 | } | |
| 05862919 SL |
122 | for (cp = buf; cp < buf + cnt; cp++) |
| 123 | if ((*cp >= ' ' && *cp <= '~') || | |
| 124 | any(*cp, value(EXCEPTIONS))) | |
| 125 | putc(*cp, fscript); | |
| eed8c72e BJ |
126 | } |
| 127 | } | |
| 128 | } |