1 /* tipout.c 4.2 81/06/16 */ 2 #include "tip.h" 3 /* 4 * tip 5 * 6 * lower fork of tip -- handles passive side 7 * reading from the remote host 8 */ 9 10 /* 11 * TIPOUT wait state routine -- 12 * sent by TIPIN when it wants to posses the remote host 13 */ 14 intIOT() 15 { 16 signal(SIGIOT, SIG_IGN); 17 write(repdes[1],&ccc,1); 18 read(fildes[0], &ccc,1); 19 signal(SIGIOT, intIOT); 20 intflag = 1; 21 } 22 23 /* 24 * Scripting command interpreter -- 25 * accepts script file name over the pipe and acts accordingly 26 */ 27 intEMT() 28 { 29 char c, line[256]; 30 register char *pline = line; 31 char reply; 32 33 signal(SIGEMT, SIG_IGN); 34 read(fildes[0], &c, 1); 35 while(c != '\n') { 36 *pline++ = c; 37 read(fildes[0], &c, 1); 38 } 39 *pline = '\0'; 40 if (boolean(value(SCRIPT)) && fscript != NULL) 41 fclose(fscript); 42 if (pline == line) { 43 boolean(value(SCRIPT)) = FALSE; 44 reply = 'y'; 45 } else { 46 if ((fscript = fopen(line, "a")) == NULL) 47 reply = 'n'; 48 else { 49 reply = 'y'; 50 boolean(value(SCRIPT)) = TRUE; 51 } 52 } 53 write(repdes[1], &reply, 1); 54 signal(SIGEMT, intEMT); 55 intflag = 1; 56 } 57 58 intTERM() 59 { 60 signal(SIGTERM, SIG_IGN); 61 if (boolean(value(SCRIPT)) && fscript != NULL) 62 fclose(fscript); 63 exit(0); 64 } 65 66 intSYS() 67 { 68 signal(SIGSYS, intSYS); 69 boolean(value(BEAUTIFY)) = !boolean(value(BEAUTIFY)); 70 } 71 72 /* 73 * ****TIPOUT TIPOUT**** 74 */ 75 tipout() 76 { 77 signal(SIGINT, SIG_IGN); 78 signal(SIGQUIT, SIG_IGN); 79 signal(SIGEMT, intEMT); /* attention from TIPIN */ 80 signal(SIGTERM, intTERM); /* time to go signal */ 81 signal(SIGIOT, intIOT); /* scripting going on signal */ 82 signal(SIGHUP, intTERM); /* for dial-ups */ 83 signal(SIGSYS, intSYS); /* beautify toggle */ 84 85 while(1) { 86 do { 87 intflag = 0; 88 read(FD,&ch,1); 89 ch &= 0177; 90 } while(intflag); 91 write(1, &ch, 1); 92 if (boolean(value(SCRIPT)) && fscript != NULL) { 93 if (boolean(value(BEAUTIFY)) && ch < 040 && 94 !any(ch, value(EXCEPTIONS))) 95 continue; 96 putc(ch, fscript); 97 } 98 } 99 } 100