X-Git-Url: https://git.cworth.org/git?p=tar;a=blobdiff_plain;f=gnu%2Fftruncate.c;fp=gnu%2Fftruncate.c;h=0000000000000000000000000000000000000000;hp=39b4bda3dca748a514317ff6cc27073068f35ff0;hb=b414e25de8ca49d7567a92c203d431383ec57c83;hpb=29ece34f44a27750bbfd76154ad9882580453dc7

diff --git a/gnu/ftruncate.c b/gnu/ftruncate.c
deleted file mode 100644
index 39b4bda..0000000
--- a/gnu/ftruncate.c
+++ /dev/null
@@ -1,92 +0,0 @@
-/* -*- buffer-read-only: t -*- vi: set ro: */
-/* DO NOT EDIT! GENERATED AUTOMATICALLY! */
-/* ftruncate emulations that work on some System V's.
-   This file is in the public domain.  */
-
-#include <config.h>
-
-/* Specification.  */
-#include <unistd.h>
-
-#include <sys/types.h>
-#include <fcntl.h>
-
-#ifdef F_CHSIZE
-
-int
-ftruncate (int fd, off_t length)
-{
-  return fcntl (fd, F_CHSIZE, length);
-}
-
-#else /* not F_CHSIZE */
-# ifdef F_FREESP
-
-/* By William Kucharski <kucharsk@netcom.com>.  */
-
-#  include <sys/stat.h>
-#  include <errno.h>
-
-int
-ftruncate (int fd, off_t length)
-{
-  struct flock fl;
-  struct stat filebuf;
-
-  if (fstat (fd, &filebuf) < 0)
-    return -1;
-
-  if (filebuf.st_size < length)
-    {
-      /* Extend file length. */
-      if (lseek (fd, (length - 1), SEEK_SET) < 0)
-        return -1;
-
-      /* Write a "0" byte. */
-      if (write (fd, "", 1) != 1)
-        return -1;
-    }
-  else
-    {
-
-      /* Truncate length. */
-
-      fl.l_whence = 0;
-      fl.l_len = 0;
-      fl.l_start = length;
-      fl.l_type = F_WRLCK;      /* write lock on file space */
-
-      /* This relies on the *undocumented* F_FREESP argument to fcntl,
-         which truncates the file so that it ends at the position
-         indicated by fl.l_start.  Will minor miracles never cease?  */
-
-      if (fcntl (fd, F_FREESP, &fl) < 0)
-        return -1;
-    }
-
-  return 0;
-}
-
-# else /* not F_CHSIZE nor F_FREESP */
-#  if HAVE_CHSIZE                      /* native Windows, e.g. mingw */
-
-int
-ftruncate (int fd, off_t length)
-{
-  return chsize (fd, length);
-}
-
-#  else /* not F_CHSIZE nor F_FREESP nor HAVE_CHSIZE */
-
-#   include <errno.h>
-
-int
-ftruncate (int fd, off_t length)
-{
-  errno = EIO;
-  return -1;
-}
-
-#  endif /* not HAVE_CHSIZE */
-# endif /* not F_FREESP */
-#endif /* not F_CHSIZE */