1 | /* |
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2 | * Copyright (c) 1990 The Regents of the University of California. |
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3 | * All rights reserved. |
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4 | * |
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5 | * Redistribution and use in source and binary forms are permitted |
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6 | * provided that the above copyright notice and this paragraph are |
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7 | * duplicated in all such forms and that any documentation, |
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8 | * advertising materials, and other materials related to such |
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9 | * distribution and use acknowledge that the software was developed |
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10 | * by the University of California, Berkeley. The name of the |
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11 | * University may not be used to endorse or promote products derived |
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12 | * from this software without specific prior written permission. |
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13 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR |
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14 | * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED |
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15 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. |
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16 | */ |
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17 | |
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18 | /* |
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19 | FUNCTION |
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20 | <<fcloseall>>---close all files |
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21 | |
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22 | INDEX |
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23 | fcloseall |
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24 | INDEX |
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25 | _fcloseall_r |
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26 | |
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27 | SYNOPSIS |
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28 | #include <stdio.h> |
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29 | int fcloseall(void); |
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30 | int _fcloseall_r (struct _reent *<[ptr]>); |
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31 | |
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32 | DESCRIPTION |
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33 | <<fcloseall>> closes all files in the current reentrancy struct's domain. |
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34 | The function <<_fcloseall_r>> is the same function, except the reentrancy |
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35 | struct is passed in as the <[ptr]> argument. |
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36 | |
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37 | This function is not recommended as it closes all streams, including |
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38 | the std streams. |
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39 | |
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40 | RETURNS |
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41 | <<fclose>> returns <<0>> if all closes are successful. Otherwise, |
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42 | EOF is returned. |
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43 | |
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44 | PORTABILITY |
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45 | <<fcloseall>> is a glibc extension. |
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46 | |
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47 | Required OS subroutines: <<close>>, <<fstat>>, <<isatty>>, <<lseek>>, |
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48 | <<read>>, <<sbrk>>, <<write>>. |
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49 | */ |
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50 | /* This file based upon fwalk.c. */ |
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51 | |
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52 | #include <_ansi.h> |
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53 | #include <reent.h> |
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54 | #include <stdio.h> |
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55 | #include <stdlib.h> |
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56 | #include <errno.h> |
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57 | #include "local.h" |
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58 | |
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59 | int |
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60 | _fcloseall_r (struct _reent *ptr) |
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61 | { |
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62 | return _fwalk_reent (ptr, _fclose_r); |
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63 | } |
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64 | |
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65 | #ifndef _REENT_ONLY |
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66 | |
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67 | int |
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68 | fcloseall (void) |
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69 | { |
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70 | return _fcloseall_r (_GLOBAL_REENT); |
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71 | } |
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72 | |
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73 | #endif |
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