projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 05862919 | 1 | #ifndef lint |
| e2326c44 | 2 | static char sccsid[] = "@(#)tipout.c 4.9 (Berkeley) %G%"; |
| 05862919 SL |
3 | #endif |
| 4 | ||
| eed8c72e BJ |
5 | #include "tip.h" |
| 6 | /* | |
| 7 | * tip | |
| 8 | * | |
| 9 | * lower fork of tip -- handles passive side | |
| 10 | * reading from the remote host | |
| 11 | */ | |
| 12 | ||
| 05862919 | 13 | static jmp_buf sigbuf; |
| 6b46907f | 14 | |
| eed8c72e BJ |
15 | /* |
| 16 | * TIPOUT wait state routine -- | |
| 17 | * sent by TIPIN when it wants to posses the remote host | |
| 18 | */ | |
| 19 | intIOT() | |
| 20 | { | |
| 05862919 | 21 | |
| eed8c72e BJ |
22 | write(repdes[1],&ccc,1); |
| 23 | read(fildes[0], &ccc,1); | |
| 05862919 | 24 | longjmp(sigbuf, 1); |
| eed8c72e BJ |
25 | } |
| 26 | ||
| 27 | /* | |
| 28 | * Scripting command interpreter -- | |
| 29 | * accepts script file name over the pipe and acts accordingly | |
| 30 | */ | |
| 31 | intEMT() | |
| 32 | { | |
| 33 | char c, line[256]; | |
| 34 | register char *pline = line; | |
| 35 | char reply; | |
| 36 | ||
| eed8c72e | 37 | read(fildes[0], &c, 1); |
| 3f48242d | 38 | while (c != '\n') { |
| eed8c72e BJ |
39 | *pline++ = c; |
| 40 | read(fildes[0], &c, 1); | |
| 41 | } | |
| 42 | *pline = '\0'; | |
| 43 | if (boolean(value(SCRIPT)) && fscript != NULL) | |
| 44 | fclose(fscript); | |
| 45 | if (pline == line) { | |
| 46 | boolean(value(SCRIPT)) = FALSE; | |
| 47 | reply = 'y'; | |
| 48 | } else { | |
| 49 | if ((fscript = fopen(line, "a")) == NULL) | |
| 50 | reply = 'n'; | |
| 51 | else { | |
| 52 | reply = 'y'; | |
| 53 | boolean(value(SCRIPT)) = TRUE; | |
| 54 | } | |
| 55 | } | |
| 56 | write(repdes[1], &reply, 1); | |
| 05862919 | 57 | longjmp(sigbuf, 1); |
| eed8c72e BJ |
58 | } |
| 59 | ||
| 60 | intTERM() | |
| 61 | { | |
| 05862919 | 62 | |
| eed8c72e BJ |
63 | if (boolean(value(SCRIPT)) && fscript != NULL) |
| 64 | fclose(fscript); | |
| 65 | exit(0); | |
| 66 | } | |
| 67 | ||
| 68 | intSYS() | |
| 69 | { | |
| 05862919 | 70 | |
| eed8c72e | 71 | boolean(value(BEAUTIFY)) = !boolean(value(BEAUTIFY)); |
| 05862919 | 72 | longjmp(sigbuf, 1); |
| eed8c72e BJ |
73 | } |
| 74 | ||
| 75 | /* | |
| 76 | * ****TIPOUT TIPOUT**** | |
| 77 | */ | |
| 78 | tipout() | |
| 79 | { | |
| c731dacc BS |
80 | char buf[BUFSIZ]; |
| 81 | register char *cp; | |
| 82 | register int cnt; | |
| e2326c44 | 83 | extern int errno; |
| 05862919 | 84 | int omask; |
| c731dacc | 85 | |
| eed8c72e BJ |
86 | signal(SIGINT, SIG_IGN); |
| 87 | signal(SIGQUIT, SIG_IGN); | |
| 88 | signal(SIGEMT, intEMT); /* attention from TIPIN */ | |
| 89 | signal(SIGTERM, intTERM); /* time to go signal */ | |
| 90 | signal(SIGIOT, intIOT); /* scripting going on signal */ | |
| 91 | signal(SIGHUP, intTERM); /* for dial-ups */ | |
| 92 | signal(SIGSYS, intSYS); /* beautify toggle */ | |
| 05862919 SL |
93 | (void) setjmp(sigbuf); |
| 94 | for (omask = 0;; sigsetmask(omask)) { | |
| 95 | cnt = read(FD, buf, BUFSIZ); | |
| e2326c44 SL |
96 | if (cnt <= 0) { |
| 97 | /* lost carrier */ | |
| 98 | if (cnt < 0 && errno == EIO) { | |
| 05862919 | 99 | #define mask(s) (1 << ((s) - 1)) |
| e2326c44 SL |
100 | sigblock(mask(SIGTERM)); |
| 101 | intTERM(); | |
| 102 | /*NOTREACHED*/ | |
| 103 | } | |
| 104 | continue; | |
| 105 | } | |
| 05862919 SL |
106 | #define ALLSIGS mask(SIGEMT)|mask(SIGTERM)|mask(SIGIOT)|mask(SIGSYS) |
| 107 | omask = sigblock(ALLSIGS); | |
| c731dacc BS |
108 | for (cp = buf; cp < buf + cnt; cp++) |
| 109 | *cp &= 0177; | |
| 110 | write(1, buf, cnt); | |
| eed8c72e | 111 | if (boolean(value(SCRIPT)) && fscript != NULL) { |
| c731dacc | 112 | if (!boolean(value(BEAUTIFY))) { |
| 3463e9c6 | 113 | fwrite(buf, 1, cnt, fscript); |
| c731dacc BS |
114 | continue; |
| 115 | } | |
| 05862919 SL |
116 | for (cp = buf; cp < buf + cnt; cp++) |
| 117 | if ((*cp >= ' ' && *cp <= '~') || | |
| 118 | any(*cp, value(EXCEPTIONS))) | |
| 119 | putc(*cp, fscript); | |
| eed8c72e BJ |
120 | } |
| 121 | } | |
| 122 | } |