src/tools/fs_shell/fcntl.cpp

   1 /*
   2  * Copyright 2007-2008, Ingo Weinhold, ingo_weinhold@gmx.de.
   3  * Distributed under the terms of the MIT License.
   4  */
   5
   6 #include "fssh_fcntl.h"
   7
   8 #include <fcntl.h>
   9 #include <stdarg.h>
  10
  11 #include "fssh_errno.h"
  12 #include "partition_support.h"
  13 #include "stat_util.h"
  14
  15
  16 using namespace FSShell;
  17
  18
  19 #if (!defined(__BEOS__) && !defined(__HAIKU__))
  20         // The _kern_open() defined in libroot_build.so.
  21 #       define _kern_open       _kernbuild_open
  22         extern "C"  int _kern_open(int fd, const char *path, int openMode,
  23                 int perms);
  24 #endif
  25
  26
  27 int
  28 fssh_open(const char *pathname, int oflags, ...)
  29 {
  30         va_list args;
  31         va_start(args, oflags);
  32
  33         // get the mode, if O_CREAT was specified
  34         fssh_mode_t mode = 0;
  35         if (oflags & FSSH_O_CREAT)
  36                 mode = va_arg(args, fssh_mode_t);
  37
  38         va_end(args);
  39
  40         // Use the _kern_open() defined in libroot on BeOS incompatible systems.
  41         // Required for proper attribute emulation support.
  42         int fd;
  43         #if (defined(__BEOS__) || defined(__HAIKU__))
  44                 fd = open(pathname, to_platform_open_mode(oflags),
  45                         to_platform_mode(mode));
  46         #else
  47                 fd = _kern_open(-1, pathname, to_platform_open_mode(oflags),
  48                         to_platform_mode(mode));
  49                 if (fd < 0) {
  50                         fssh_set_errno(fd);
  51                         fd = -1;
  52                 }
  53
  54         #endif
  55
  56         restricted_file_opened(fd);
  57
  58         return fd;
  59 }
  60
  61
  62 int
  63 fssh_creat(const char *path, fssh_mode_t mode)
  64 {
  65         return fssh_open(path, FSSH_O_WRONLY | FSSH_O_CREAT | FSSH_O_TRUNC, mode);
  66 }