/* Open a descriptor to a file.
- Copyright (C) 2007-2008 Free Software Foundation, Inc.
+ Copyright (C) 2007-2009 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
#include <config.h>
-/* Specification. */
+/* Get the original definition of open. It might be defined as a macro. */
+#define __need_system_fcntl_h
#include <fcntl.h>
+#undef __need_system_fcntl_h
+#include <sys/types.h>
-/* If the fchdir replacement is used, open() is defined in fchdir.c. */
-#ifndef FCHDIR_REPLACEMENT
+static inline int
+orig_open (const char *filename, int flags, mode_t mode)
+{
+ return open (filename, flags, mode);
+}
-# include <errno.h>
-# include <stdarg.h>
-# include <string.h>
-# include <sys/types.h>
-# include <sys/stat.h>
+/* Specification. */
+#include <fcntl.h>
+
+#include <errno.h>
+#include <stdarg.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
int
open (const char *filename, int flags, ...)
-# undef open
{
mode_t mode;
int fd;
va_list arg;
va_start (arg, flags);
- /* If mode_t is narrower than int, use the promoted type (int),
- not mode_t. Use sizeof to guess whether mode_t is narrower;
- we don't know of any practical counterexamples. */
- mode = (sizeof (mode_t) < sizeof (int)
- ? va_arg (arg, int)
- : va_arg (arg, mode_t));
+ /* We have to use PROMOTED_MODE_T instead of mode_t, otherwise GCC 4
+ creates crashing code when 'mode_t' is smaller than 'int'. */
+ mode = va_arg (arg, PROMOTED_MODE_T);
va_end (arg);
}
-# if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
+#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
if (strcmp (filename, "/dev/null") == 0)
filename = "NUL";
-# endif
+#endif
-# if OPEN_TRAILING_SLASH_BUG
+#if OPEN_TRAILING_SLASH_BUG
/* If the filename ends in a slash and one of O_CREAT, O_WRONLY, O_RDWR
is specified, then fail.
Rationale: POSIX <http://www.opengroup.org/susv3/basedefs/xbd_chap04.html>
return -1;
}
}
-# endif
+#endif
- fd = open (filename, flags, mode);
+ fd = orig_open (filename, flags, mode);
-# if OPEN_TRAILING_SLASH_BUG
+#if OPEN_TRAILING_SLASH_BUG
/* If the filename ends in a slash and fd does not refer to a directory,
then fail.
Rationale: POSIX <http://www.opengroup.org/susv3/basedefs/xbd_chap04.html>
if (fstat (fd, &statbuf) >= 0 && !S_ISDIR (statbuf.st_mode))
{
+ close (fd);
errno = ENOTDIR;
return -1;
}
}
}
-# endif
+#endif
+
+#ifdef FCHDIR_REPLACEMENT
+ if (fd >= 0)
+ _gl_register_fd (fd, filename);
+#endif
return fd;
}
-#endif