Last change
on this file since 656 was
444,
checked in by satin@…, 6 years ago
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add newlib,libalmos-mkh, restructure shared_syscalls.h and mini-libc
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File size:
1.3 KB
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Line | |
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1 | /* mvme-read.c -- read bytes from a input device. |
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2 | * |
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3 | * Copyright (c) 1996 Cygnus Support |
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4 | * |
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5 | * The authors hereby grant permission to use, copy, modify, distribute, |
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6 | * and license this software and its documentation for any purpose, provided |
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7 | * that existing copyright notices are retained in all copies and that this |
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8 | * notice is included verbatim in any distributions. No written agreement, |
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9 | * license, or royalty fee is required for any of the authorized uses. |
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10 | * Modifications to this software may be copyrighted by their authors |
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11 | * and need not follow the licensing terms described here, provided that |
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12 | * the new terms are clearly indicated on the first page of each file where |
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13 | * they apply. |
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14 | */ |
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15 | |
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16 | extern int inbyte (); |
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17 | extern char * __inln (); |
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18 | |
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19 | /* |
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20 | * read -- read bytes from the serial port. Ignore fd, since |
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21 | * we only have stdin. |
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22 | */ |
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23 | int |
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24 | read (fd, buf, nbytes) |
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25 | int fd; |
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26 | char *buf; |
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27 | int nbytes; |
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28 | { |
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29 | if (nbytes >= 256) |
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30 | { |
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31 | char *read_end = __inln (buf); |
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32 | *read_end = '\n'; |
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33 | return read_end - buf + 1; |
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34 | } |
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35 | else |
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36 | { |
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37 | int i, c; |
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38 | for (i = 0; i < nbytes; i++) { |
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39 | *buf++ = c = inbyte (); |
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40 | if (c == '\n' || c == '\r') { |
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41 | buf[-1] = '\n'; /* convert \r to \n */ |
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42 | buf[0] = '\0'; |
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43 | break; |
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44 | } |
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45 | } |
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46 | |
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47 | return i; |
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48 | } |
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49 | } |
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