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* cygwin.din: Add `dirfd'.

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* dir.cc (dirfd): New function.
        (opendir): Open a directory file descriptor and save it in
        __d_dirent->d_fd.
        (closedir): Close directory file descriptor.
        * include/cygwin/version.h: Bump API minor version to 44.
This commit is contained in:
Corinna Vinschen
2001-09-03 16:36:54 +00:00
parent 6d47f33adb
commit a71aee46c4
4 changed files with 30 additions and 1 deletions
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17
winsup/cygwin/dir.cc
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@@ -9,6 +9,7 @@ Cygwin license. Please consult the file "CYGWIN_LICENSE" for
details. */
#include "winsup.h"
#include <sys/fcntl.h>
#include <unistd.h>
#include <stdlib.h>
#include <sys/stat.h>
@@ -61,6 +62,18 @@ writable_directory (const char *file)
#endif
}
extern "C" int
dirfd (DIR *dir)
{
if (dir->__d_cookie != __DIRENT_COOKIE)
{
set_errno (EBADF);
syscall_printf ("-1 = dirfd (%p)", dir);
return -1;
}
return dir->__d_dirent->d_fd;
}
/* opendir: POSIX 5.1.2.1 */
extern "C" DIR *
opendir (const char *dirname)
@@ -114,6 +127,7 @@ opendir (const char *dirname)
goto failed;
}
strcpy (dir->__d_dirname, real_dirname.get_win32 ());
dir->__d_dirent->d_fd = open (dir->__d_dirname, O_RDONLY | O_DIROPEN);
/* FindFirstFile doesn't seem to like duplicate /'s. */
len = strlen (dir->__d_dirname);
if (len == 0 || SLASH_P (dir->__d_dirname[len - 1]))
@@ -290,6 +304,9 @@ closedir (DIR * dir)
return -1;
}
if (dir->__d_dirent->d_fd >= 0)
close (dir->__d_dirent->d_fd);
/* Reset the marker in case the caller tries to use `dir' again. */
dir->__d_cookie = 0;