/* $Id$
*
* This file is part of pgets.
*
* pgets is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* pgets is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*
* You should have received a copy of the GNU General Public License
* along with pgets; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*/
#include
#include
#include
#include "util.h"
ssize_t loop_read (int FILEDES, void *BUFFER, size_t SIZE) {
ssize_t c = 0;
while (SIZE > 0) {
ssize_t r = read(FILEDES, BUFFER, SIZE);
if (r <= 0) {
if (c == 0)
return r;
else
return c;
}
SIZE -= r;
c += r;
BUFFER += r;
}
return c;
}
ssize_t loop_write(int FILEDES, const void *BUFFER, size_t SIZE) {
ssize_t c = 0;
while (SIZE > 0) {
ssize_t r = write(FILEDES, BUFFER, SIZE);
if (r <= 0) {
if (c == 0)
return r;
else
return c;
}
SIZE -= r;
c += r;
BUFFER += r;
}
return c;
}
// The name says it all.
void flush_data(int fd) {
tcflush(fd, TCIFLUSH);
tcflush(fd, TCIFLUSH);
}
ssize_t read_line(int FILEDES, char *ln, size_t SIZE) {
ssize_t c = 0;
while (SIZE > 0) {
ssize_t r;
if ((r = read(FILEDES, ln, 1)) != 1) {
if (r < 0 && !c)
return -1;
break;
}
SIZE--;
c++;
if (*ln == '\r' || *ln == '\n') {
ln++;
break;
}
ln++;
}
if (SIZE)
*ln = 0;
return c;
}