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greg |
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/* Copyright (c) 1988 Regents of the University of California */ |
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#ifndef lint |
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static char SCCSid[] = "$SunId$ LBL"; |
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#endif |
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/* |
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* suncom.c - program to read and edit raw tty input. |
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* |
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* 10/5/88 |
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*/ |
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#include <stdio.h> |
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#include <signal.h> |
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#include <sys/ioctl.h> |
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#define INITSTR "" /* TTY initialization string */ |
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struct sgttyb ttymode; |
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main(argc, argv) /* called with pid to signal and pipe fd */ |
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int argc; |
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char *argv[]; |
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{ |
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int sigpid; |
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int outfd; |
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if (argc != 3) |
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exit(1); |
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sigpid = atoi(argv[1]); |
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outfd = atoi(argv[2]); |
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fputs(INITSTR, stdout); |
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fflush(stdout); |
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/* reassign stdout */ |
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if (outfd != fileno(stdout)) { |
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dup2(outfd, fileno(stdout)); |
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close(outfd); |
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} |
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/* set tty modes */ |
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if (!isatty(0)) |
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exit(1); |
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ioctl(0, TIOCGETP, &ttymode); |
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ttymode.sg_flags |= RAW; /* also turns output */ |
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ttymode.sg_flags &= ~ECHO; /* processing off */ |
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ioctl(0, TIOCSETP, &ttymode); |
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/* read lines from input */ |
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for ( ; ; ) { |
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ungetc(getc(stdin), stdin); /* notify sigpid */ |
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kill(sigpid, SIGIO); |
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sendline(); |
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} |
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} |
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int |
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getch() /* get a character in raw mode */ |
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{ |
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return(getc(stdin)); |
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} |
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sends(s) /* send a string to stdout */ |
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register char *s; |
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{ |
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do |
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putc(*s, stdout); |
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while (*s++); |
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fflush(stdout); |
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} |
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sendline() /* read a line in raw mode */ |
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{ |
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char buf[256]; |
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greg |
1.2 |
editline(buf, getch, sends); |
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greg |
1.1 |
putc('\0', stdout); |
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sends(buf); |
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} |
