date and time created 83/08/05 13:35:06 by sam

[unix-history] / usr / src / old / lib2648 / rawchar.c

/*      rawchar.c       4.1     83/03/09        */
/*
* get a character from the terminal, with no line buffering.
*/

#include "2648.h"

rawchar()
{
       char c;

       sync();
       escseq(NONE);
       fflush(stdout);
       if (_pb_front && _on2648) {
               c = *_pb_front++;
#ifdef TRACE
               if (trace)
                       fprintf(trace, "%s from queue, front=%d, back=%d\n", rdchar(c), _pb_front-_pushback, _pb_back-_pushback);
#endif
               if (_pb_front > _pb_back) {
                       _pb_front = _pb_back = NULL;
#ifdef TRACE
                       if (trace)
                               fprintf(trace, "reset pushback to null\n");
#endif
               }
               return (c);
       }
       _outcount = 0;
       c = getchar();
#ifdef TRACE
       if (trace)
               fprintf(trace, "rawchar '%s'\n", rdchar(c));
#endif
       return (c);
}