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1 /* safe-@l@stat.h -- EINTR-safe interface to @l@stat |
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2 Copyright (C) 1994 Free Software Foundation, Inc. |
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3 |
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4 This program is free software; you can redistribute it and/or modify |
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5 it under the terms of the GNU General Public License as published by |
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6 the Free Software Foundation; either version 2, or (at your option) |
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7 any later version. |
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8 |
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9 This program is distributed in the hope that it will be useful, |
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10 but WITHOUT ANY WARRANTY; without even the implied warranty of |
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11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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12 GNU General Public License for more details. |
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13 |
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14 You should have received a copy of the GNU General Public License |
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15 along with this program; if not, write to the Free Software |
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16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ |
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17 |
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18 /* Written by Jim Meyering <meyering@comco.com>. */ |
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19 |
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20 #ifndef _safe_@l@stat_h_ |
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21 #define _safe_@l@stat_h_ 1 |
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22 |
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23 /* NOTE: you must include the following headers (in the listed order) |
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24 before this one: <sys/types.h>, <sys/stat.h>. */ |
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25 |
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26 #if !defined(S_ISLNK) && defined(S_IFLNK) @LSTAT_ONLY@ |
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27 #define S_ISLNK(m) (((m) & S_IFMT) == S_IFLNK) @LSTAT_ONLY@ |
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28 #endif @LSTAT_ONLY@ |
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29 @LSTAT_ONLY@ |
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30 #ifndef S_ISLNK @LSTAT_ONLY@ |
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31 #include "safe-stat.h" @LSTAT_ONLY@ |
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32 #define SAFE_LSTAT SAFE_STAT @LSTAT_ONLY@ |
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33 #define safe_lstat safe_stat @LSTAT_ONLY@ |
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34 #else @LSTAT_ONLY@ |
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35 @LSTAT_ONLY@ |
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36 #include <errno.h> |
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37 |
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38 #ifndef errno |
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39 extern int errno; |
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40 #endif |
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41 |
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42 #ifndef __GNUC__ |
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43 #define __inline /* empty */ |
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44 #endif |
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45 |
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46 /* On some systems, @l@stat can return EINTR. */ |
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47 |
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48 #ifndef EINTR |
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49 # define SAFE_@L@STAT(name, buf) @l@stat (name, buf) |
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50 #else |
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51 # ifndef __static |
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52 # define __static static |
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53 # endif |
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54 # define SAFE_@L@STAT(name, buf) safe_@l@stat (name, buf) |
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55 __static __inline int |
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56 safe_@l@stat (name, buf) |
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57 const char *name; |
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58 struct stat *buf; |
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59 { |
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60 int ret; |
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61 |
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62 do |
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63 ret = @l@stat (name, buf); |
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64 while (ret < 0 && errno == EINTR); |
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65 |
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66 return ret; |
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67 } |
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68 #endif |
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69 |
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70 #endif /* S_ISLNK */ @LSTAT_ONLY@ |
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71 #endif /* _safe_@l@stat_h_ */ |
