fix bugs with beautify and scripting

[unix-history] / usr / src / usr.bin / tip / tipout.c

/*      tipout.c        4.6     82/01/06        */
#include "tip.h"
/*
* tip
*
* lower fork of tip -- handles passive side
*  reading from the remote host
*/

/*
* TIPOUT wait state routine --
*   sent by TIPIN when it wants to posses the remote host
*/
intIOT()
{
       signal(SIGIOT, SIG_IGN);
       write(repdes[1],&ccc,1);
       read(fildes[0], &ccc,1);
       signal(SIGIOT, intIOT);
       intflag = 1;
}

/*
* Scripting command interpreter --
*  accepts script file name over the pipe and acts accordingly
*/
intEMT()
{
       char c, line[256];
       register char *pline = line;
       char reply;

       signal(SIGEMT, SIG_IGN);
       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);
       signal(SIGEMT, intEMT);
       intflag = 1;
}

intTERM()
{
       signal(SIGTERM, SIG_IGN);
       if (boolean(value(SCRIPT)) && fscript != NULL)
               fclose(fscript);
       exit(0);
}

intSYS()
{
       signal(SIGSYS, intSYS);
       boolean(value(BEAUTIFY)) = !boolean(value(BEAUTIFY));
       intflag = 1;
}

/*
* ****TIPOUT   TIPOUT****
*/
tipout()
{
       char buf[BUFSIZ];
       register char *cp;
       register int cnt;

       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 */

       for (;;) {
               do {
                       intflag = 0;
                       cnt = read(FD, buf, BUFSIZ);
               } while (intflag);
               if (cnt <= 0)
                       continue;
               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 < ' ' && !any(*cp, value(EXCEPTIONS)))
                                       continue;
                               putc(*cp, fscript);
                       }
               }
       }
}