lib/xattr-at.c

   1 /* openat-style fd-relative functions for operating with extended file
   2    attributes.
   3
   4    Copyright 2012-2025 Free Software Foundation, Inc.
   5
   6    This program is free software: you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation, either version 3 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  18
  19 #include <config.h>
  20
  21 #include "xattr-at.h"
  22 #include "openat.h"
  23
  24 #include <stdlib.h>
  25 #include <unistd.h>
  26 #include <errno.h>
  27 #include <fcntl.h>
  28
  29 #include "dirname.h" /* solely for definition of IS_ABSOLUTE_FILE_NAME */
  30 #include "save-cwd.h"
  31
  32 #include "openat-priv.h"
  33
  34 #ifdef HAVE_XATTRS
  35
  36 /* setxattrat */
  37 #define AT_FUNC_NAME setxattrat
  38 #define AT_FUNC_F1 setxattr
  39 #define AT_FUNC_POST_FILE_PARAM_DECLS   , const char *name, const void *value \
  40                                         , size_t size, int flags
  41 #define AT_FUNC_POST_FILE_ARGS          , name, value, size, flags
  42 #include "at-func.c"
  43 #undef AT_FUNC_NAME
  44 #undef AT_FUNC_F1
  45 #undef AT_FUNC_POST_FILE_PARAM_DECLS
  46 #undef AT_FUNC_POST_FILE_ARGS
  47
  48 /* lsetxattrat */
  49 #define AT_FUNC_NAME lsetxattrat
  50 #define AT_FUNC_F1 lsetxattr
  51 #define AT_FUNC_POST_FILE_PARAM_DECLS   , const char *name, const void *value \
  52                                         , size_t size, int flags
  53 #define AT_FUNC_POST_FILE_ARGS          , name, value, size, flags
  54 #include "at-func.c"
  55 #undef AT_FUNC_NAME
  56 #undef AT_FUNC_F1
  57 #undef AT_FUNC_POST_FILE_PARAM_DECLS
  58 #undef AT_FUNC_POST_FILE_ARGS
  59
  60 /* getxattrat */
  61 #define AT_FUNC_NAME getxattrat
  62 #define AT_FUNC_RESULT ssize_t
  63 #define AT_FUNC_F1 getxattr
  64 #define AT_FUNC_POST_FILE_PARAM_DECLS   , const char *name, void *value \
  65                                         , size_t size
  66 #define AT_FUNC_POST_FILE_ARGS          , name, value, size
  67 #include "at-func.c"
  68 #undef AT_FUNC_NAME
  69 #undef AT_FUNC_F1
  70 #undef AT_FUNC_RESULT
  71 #undef AT_FUNC_POST_FILE_PARAM_DECLS
  72 #undef AT_FUNC_POST_FILE_ARGS
  73
  74 /* lgetxattrat */
  75 #define AT_FUNC_NAME lgetxattrat
  76 #define AT_FUNC_RESULT ssize_t
  77 #define AT_FUNC_F1 lgetxattr
  78 #define AT_FUNC_POST_FILE_PARAM_DECLS   , const char *name, void *value \
  79                                         , size_t size
  80 #define AT_FUNC_POST_FILE_ARGS          , name, value, size
  81 #include "at-func.c"
  82 #undef AT_FUNC_NAME
  83 #undef AT_FUNC_F1
  84 #undef AT_FUNC_RESULT
  85 #undef AT_FUNC_POST_FILE_PARAM_DECLS
  86 #undef AT_FUNC_POST_FILE_ARGS
  87
  88 /* listxattrat */
  89 #define AT_FUNC_NAME listxattrat
  90 #define AT_FUNC_RESULT ssize_t
  91 #define AT_FUNC_F1 listxattr
  92 #define AT_FUNC_POST_FILE_PARAM_DECLS   , char *list , size_t size
  93 #define AT_FUNC_POST_FILE_ARGS          , list , size
  94 #include "at-func.c"
  95 #undef AT_FUNC_NAME
  96 #undef AT_FUNC_F1
  97 #undef AT_FUNC_RESULT
  98 #undef AT_FUNC_POST_FILE_PARAM_DECLS
  99 #undef AT_FUNC_POST_FILE_ARGS
 100
 101 /* llistxattrat */
 102 #define AT_FUNC_NAME llistxattrat
 103 #define AT_FUNC_RESULT ssize_t
 104 #define AT_FUNC_F1 llistxattr
 105 #define AT_FUNC_POST_FILE_PARAM_DECLS   , char *list , size_t size
 106 #define AT_FUNC_POST_FILE_ARGS          , list , size
 107 #include "at-func.c"
 108 #undef AT_FUNC_NAME
 109 #undef AT_FUNC_F1
 110 #undef AT_FUNC_RESULT
 111 #undef AT_FUNC_POST_FILE_PARAM_DECLS
 112 #undef AT_FUNC_POST_FILE_ARGS
 113
 114 #endif /* HAVE_XATTRS */