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/* read.c -- read characters from file, with hook.
*
* Copyright (c) 2003 Red Hat, Inc. All rights reserved.
*
* This copyrighted material is made available to anyone wishing to use, modify,
* copy, or redistribute it subject to the terms and conditions of the BSD
* License. This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY expressed or implied, including the implied
* warranties of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. A copy
* of this license is available at http://www.opensource.org/licenses. Any
* Red Hat trademarks that are incorporated in the source code or documentation
* are not subject to the BSD License and may only be used or replicated with
* the express permission of Red Hat, Inc.
*/
extern int __mep_read(int, unsigned char *, int);
extern int _ioIn(void) __attribute__((weak));
int
read(int fd, unsigned char *buf, int count)
{
if (fd == 0 && &_ioIn)
{
int c = 0;
while (c < count)
{
int ch = _ioIn();
*buf++ = ch;
if (ch == -1)
break;
c ++;
}
return c;
}
return __mep_read(fd, buf, count);
}
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