libc/libgloss/mep/read.c
Jeff Johnston 1d94f73114 2007-02-08 Dave Brolley <brolley@redhat.com>
* mep: New target directory.
        * README: Add MeP.
        * configure.in: Add support for MeP.
        * configure: Regenerated.
        * mep/configure.in: New file.
        * mep/configure: Ditto.
        * mep/Makefile.in: Ditto.
        * mep/aclocal.m4: Ditto.
        * mep/crt0.S: Ditto.
        * mep/crtn.S: Ditto.
        * mep/sim-crt0.S: Ditto.
        * mep/sim-crtn.S: Ditto.
        * mep/fmax.ld: Ditto.
        * mep/gcov-io.h: Ditto.
        * mep/gmap_default.ld: Ditto.
        * mep/handlers.c: Ditto.
        * mep/h_reset.c: Ditto.
        * mep/isatty.c: Ditto.
        * mep/mep-bb.c: Ditto.
        * mep/mep-gmon.c: Ditto.
        * mep/min.ld: Ditto.
        * mep/read.c: Ditto.
        * mep/sbrk.c: Ditto.
        * mep/sdram-crt0.S: Ditto.
        * mep/sdram-crtn.S: Ditto.
        * mep/simnovec-crt0.S: Ditto.
        * mep/simple.ld: Ditto.
        * mep/simsdran-crt0.S: Ditto.
        * mep/syscalls.S: Ditto.
        * mep/write.c: Ditto.
2007-02-08 21:22:05 +00:00

37 lines
1.1 KiB
C

/* 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);
}