1 | /* open.c -- Implementation of the low-level open() routine |
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2 | * |
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3 | * Copyright (c) 2004 National Semiconductor Corporation |
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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 | #include <sys/syscall.h> |
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17 | #include <stdarg.h> |
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18 | |
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19 | int open_aux (char *, int, int); |
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20 | |
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21 | /* The prototype in <fcntl.h> for open() uses ..., meaning function |
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22 | * parameters reside on stack, but the debugger expects the parameters |
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23 | * to reside in registers, thus we call an auxiliary function with |
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24 | * bounded number of parameters. |
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25 | */ |
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26 | int _open (char *path, int flags, ...) |
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27 | { |
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28 | int mode; |
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29 | va_list ap; |
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30 | |
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31 | va_start(ap, flags); |
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32 | mode = va_arg(ap, int); |
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33 | open_aux (path, flags, mode); |
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34 | va_end(ap); |
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35 | } |
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36 | |
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37 | int open_aux (char *path, int flags, int mode) |
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38 | { |
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39 | HOST_SERVICE (SVC_OPEN); |
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40 | } |
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41 | |
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