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#include <curses.h>
#include <err.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/select.h>
#define MAXBUF 1024
int
main()
{
fd_set rfds;
int bufin[MAXBUF], bufout[MAXBUF], c, in, nin, nout, out, startx, y;
struct timeval tv;
WINDOW *w;
w = initscr();
raw();
noecho();
timeout(1);
if((in = open("/var/tmp/r.in", O_RDWR)) == -1)
err(1, "/var/tmp/r.in");
if((out = open("/var/tmp/r.out", O_RDWR)) == -1)
err(1, "/var/tmp/r.out");
tv.tv_sec = 0;
tv.tv_usec = 0;
FD_ZERO(&rfds);
startx = 0;
nin = 0;
for(;;){
FD_SET(out, &rfds);
if(select(out+1, &rfds, NULL, NULL, &tv) > 0){
nout = read(out, bufout, MAXBUF);
bufout[nout+1] = 0;
printw("%s", bufout);
refresh();
startx = -1;
}
if((c = getch()) != ERR){
if(startx == -1)
startx = getcurx(w);
if(c == 26) /* ^Z */
break;
if(c == 21){ /* ^U */
reset: bufin[0] = nin = 0;
y = getcury(w);
move(y, startx);
refresh();
continue;
}
bufin[nin++] = c;
if(c == '\n'){
bufin[nin] = 0;
dprintf(in, "%s", bufin);
goto reset;
}else{
printw("%c", c);
refresh();
}
}
}
echo();
noraw();
endwin();
}
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