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/*
* util.c:
*
* Copyright (c) 2008 James McKenzie <james@fishsoup.dhs.org>,
* All rights reserved.
*
*/
static char rcsid[] = "$Id$";
/*
* $Log$
* Revision 1.1 2008/02/13 01:08:38 james
* *** empty log message ***
*
*/
#include "project.h"
int
wrap_read (int fd, void *buf, int len)
{
int red;
red = read (fd, buf, len);
if (!red)
return -1;
if ((red < 0) && (errno == EAGAIN))
red = 0;
return red;
}
int
wrap_write (int fd, void *buf, int len)
{
int writ;
writ = write (fd, buf, len);
if (!writ)
return -1;
if ((writ < 0) && (errno == -EAGAIN))
writ = 0;
return writ;
}
void
set_nonblocking (int fd)
{
long arg;
arg = fcntl (fd, F_GETFL, arg);
arg |= O_NONBLOCK;
fcntl (fd, F_SETFL, arg);
}
void
set_blocking (int fd)
{
long arg;
arg = fcntl (fd, F_GETFL, arg);
arg &= ~O_NONBLOCK;
fcntl (fd, F_SETFL, arg);
}
void raw_termios(struct termios *termios)
{
termios->c_iflag = ICRNL | IXON;
termios->c_oflag = OPOST | ONLCR | NL0 | CR0 | TAB0 | BS0 | VT0 | FF0;
termios->c_lflag =
ISIG | ICANON | IEXTEN | ECHO | ECHOE | ECHOK | ECHOCTL | ECHOKE;
termios->c_cc[VINTR] = 003;
termios->c_cc[VQUIT] = 034;
termios->c_cc[VERASE] = 0177;
termios->c_cc[VKILL] = 025;
termios->c_cc[VEOF] = 004;
termios->c_cc[VEOL] = 0;
termios->c_cc[VEOL2] = 0;
termios->c_cc[VSTART] = 021;
termios->c_cc[VSTOP] = 023;
termios->c_cc[VSUSP] = 032;
termios->c_cc[VLNEXT] = 026;
termios->c_cc[VWERASE] = 027;
termios->c_cc[VREPRINT] = 022;
termios->c_cc[VDISCARD] = 017;
}
void
default_termios (struct termios *termios)
{
memset (termios, 0, sizeof (termios));
raw_termios(termios);
termios->c_cflag = CS8 | CREAD | CLOCAL;
cfsetispeed (termios, B9600);
cfsetospeed (termios, B9600);
}
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