Last change
on this file since 667 was
444,
checked in by satin@…, 6 years ago
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add newlib,libalmos-mkh, restructure shared_syscalls.h and mini-libc
|
File size:
1.1 KB
|
Rev | Line | |
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[444] | 1 | /* read.c -- read characters from file, with hook. |
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| 2 | * |
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| 3 | * Copyright (c) 2003 Red Hat, Inc. All rights reserved. |
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| 4 | * |
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| 5 | * This copyrighted material is made available to anyone wishing to use, modify, |
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| 6 | * copy, or redistribute it subject to the terms and conditions of the BSD |
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| 7 | * License. This program is distributed in the hope that it will be useful, |
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| 8 | * but WITHOUT ANY WARRANTY expressed or implied, including the implied |
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| 9 | * warranties of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. A copy |
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| 10 | * of this license is available at http://www.opensource.org/licenses. Any |
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| 11 | * Red Hat trademarks that are incorporated in the source code or documentation |
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| 12 | * are not subject to the BSD License and may only be used or replicated with |
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| 13 | * the express permission of Red Hat, Inc. |
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| 14 | */ |
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| 15 | |
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| 16 | extern int __mep_read(int, unsigned char *, int); |
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| 17 | extern int _ioIn(void) __attribute__((weak)); |
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| 18 | |
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| 19 | int |
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| 20 | read(int fd, unsigned char *buf, int count) |
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| 21 | { |
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| 22 | if (fd == 0 && &_ioIn) |
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| 23 | { |
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| 24 | int c = 0; |
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| 25 | while (c < count) |
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| 26 | { |
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| 27 | int ch = _ioIn(); |
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| 28 | *buf++ = ch; |
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| 29 | if (ch == -1) |
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| 30 | break; |
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| 31 | c ++; |
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| 32 | } |
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| 33 | return c; |
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| 34 | } |
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| 35 | return __mep_read(fd, buf, count); |
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| 36 | } |
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