src/native_client/src/trusted/service_runtime/include/sys/dirent.h

   1 /*
   2  * Copyright (c) 2012 The Native Client Authors. All rights reserved.
   3  * Use of this source code is governed by a BSD-style license that can be
   4  * found in the LICENSE file.
   5  */
   6
   7 #ifndef NATIVE_CLIENT_SRC_TRUSTED_SERVICE_RUNTIME_INCLUDE_SYS_DIRENT_H
   8 #define NATIVE_CLIENT_SRC_TRUSTED_SERVICE_RUNTIME_INCLUDE_SYS_DIRENT_H
   9
  10 #if defined(NACL_IN_TOOLCHAIN_HEADERS)
  11 #include <sys/types.h>
  12 #else
  13 #include "native_client/src/trusted/service_runtime/include/machine/_types.h"
  14 #endif
  15
  16 #if defined(NACL_IN_TOOLCHAIN_HEADERS)
  17 /* check the compiler toolchain */
  18 # ifdef NACL_ABI_MAXNAMLEN
  19 #  if NACL_ABI_MAXNAMLEN != 255
  20 #   error "MAXNAMLEN inconsistent"
  21 #  endif
  22 #  ifdef NAME_MAX
  23 #   if NAME_MAX != 255
  24 #    error "NAME_MAX inconsistent"
  25 #   endif
  26 #  endif
  27 # else
  28 #  define NACL_ABI_MAXNAMLEN 255
  29 # endif
  30 #else /* defined(NACL_IN_TOOLCHAIN_HEADERS) */
  31 # define NACL_ABI_MAXNAMLEN 255
  32 #endif
  33
  34 /*
  35  * _dirdesc contains the state used by opendir/readdir/closedir.
  36  */
  37 typedef struct nacl_abi__dirdesc {
  38   int   nacl_abi_dd_fd;
  39   long  nacl_abi_dd_loc;
  40   long  nacl_abi_dd_size;
  41   char  *nacl_abi_dd_buf;
  42   int   nacl_abi_dd_len;
  43   long  nacl_abi_dd_seek;
  44 } nacl_abi_DIR;
  45
  46 /*
  47  * dirent represents a single directory entry.
  48  */
  49 struct nacl_abi_dirent {
  50   nacl_abi_ino_t nacl_abi_d_ino;
  51   nacl_abi_off_t nacl_abi_d_off;
  52   uint16_t       nacl_abi_d_reclen;
  53   char           nacl_abi_d_name[NACL_ABI_MAXNAMLEN + 1];
  54 };
  55
  56 /*
  57  * external function declarations
  58  */
  59 extern nacl_abi_DIR           *nacl_abi_opendir(const char *dirpath);
  60 extern struct nacl_abi_dirent *nacl_abi_readdir(nacl_abi_DIR *direntry);
  61 extern int                    nacl_abi_closedir(nacl_abi_DIR *direntry);
  62 extern void                   nacl_abi_rewinddir(nacl_abi_DIR *direntry);
  63 extern int                    nacl_abi_readdir_r(nacl_abi_DIR *direntry,
  64                                                  struct nacl_abi_dirent *entry,
  65                                                  struct nacl_abi_dirent **res);
  66
  67 #endif