X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=gnu%2Ffseeko.c;h=1c65d2a848e3c1f61a01cff1a2b94cca05a9c460;hb=HEAD;hp=5eb256a6c4c17003cf7f728939b02e3a25a83f1a;hpb=b414e25de8ca49d7567a92c203d431383ec57c83;p=debian%2Ftar

diff --git a/gnu/fseeko.c b/gnu/fseeko.c
index 5eb256a6..1c65d2a8 100644
--- a/gnu/fseeko.c
+++ b/gnu/fseeko.c
@@ -1,7 +1,5 @@
-/* -*- buffer-read-only: t -*- vi: set ro: */
-/* DO NOT EDIT! GENERATED AUTOMATICALLY! */
 /* An fseeko() function that, together with fflush(), is POSIX compliant.
-   Copyright (C) 2007-2010 Free Software Foundation, Inc.
+   Copyright (C) 2007-2015 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
@@ -14,15 +12,14 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License along
-   with this program; if not, write to the Free Software Foundation,
-   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+   with this program; if not, see <http://www.gnu.org/licenses/>.  */
 
 #include <config.h>
 
 /* Specification.  */
 #include <stdio.h>
 
-/* Get off_t and lseek.  */
+/* Get off_t, lseek, _POSIX_VERSION.  */
 #include <unistd.h>
 
 #include "stdio-impl.h"
@@ -34,6 +31,14 @@ fseeko (FILE *fp, off_t offset, int whence)
 # undef fseek
 # define fseeko fseek
 #endif
+#if _GL_WINDOWS_64_BIT_OFF_T
+# undef fseeko
+# if HAVE__FSEEKI64 /* msvc, mingw64 */
+#  define fseeko _fseeki64
+# else /* mingw */
+#  define fseeko fseeko64
+# endif
+#endif
 {
 #if LSEEK_PIPE_BROKEN
   /* mingw gives bogus answers rather than failure on non-seekable files.  */
@@ -46,7 +51,8 @@ fseeko (FILE *fp, off_t offset, int whence)
   if (fp->_IO_read_end == fp->_IO_read_ptr
       && fp->_IO_write_ptr == fp->_IO_write_base
       && fp->_IO_save_base == NULL)
-#elif defined __sferror || defined __DragonFly__ /* FreeBSD, NetBSD, OpenBSD, DragonFly, MacOS X, Cygwin */
+#elif defined __sferror || defined __DragonFly__ || defined __ANDROID__
+  /* FreeBSD, NetBSD, OpenBSD, DragonFly, Mac OS X, Cygwin, Android */
 # if defined __SL64 && defined __SCLE /* Cygwin */
   if ((fp->_flags & __SL64) == 0)
     {
@@ -71,7 +77,10 @@ fseeko (FILE *fp, off_t offset, int whence)
       && fp->_rcount == 0
       && fp->_wcount == 0
       && fp->_ungetc_count == 0)
-#elif defined _IOERR                /* AIX, HP-UX, IRIX, OSF/1, Solaris, OpenServer, mingw */
+#elif defined __minix               /* Minix */
+  if (fp_->_ptr == fp_->_buf
+      && (fp_->_ptr == NULL || fp_->_count == 0))
+#elif defined _IOERR                /* AIX, HP-UX, IRIX, OSF/1, Solaris, OpenServer, mingw, NonStop Kernel */
   if (fp_->_ptr == fp_->_base
       && (fp_->_ptr == NULL || fp_->_cnt == 0))
 #elif defined __UCLIBC__            /* uClibc */
@@ -88,21 +97,27 @@ fseeko (FILE *fp, off_t offset, int whence)
       && fp->__get_limit == fp->__bufp
       && fp->__put_limit == fp->__bufp
       && !fp->__pushed_back)
+#elif defined EPLAN9                /* Plan9 */
+  if (fp->rp == fp->buf
+      && fp->wp == fp->buf)
+#elif FUNC_FFLUSH_STDIN < 0 && 200809 <= _POSIX_VERSION
+  /* Cross-compiling to some other system advertising conformance to
+     POSIX.1-2008 or later.  Assume fseeko and fflush work as advertised.
+     If this assumption is incorrect, please report the bug to
+     bug-gnulib.  */
+  if (0)
 #else
-  #error "Please port gnulib fseeko.c to your platform! Look at the code in fpurge.c, then report this to bug-gnulib."
+  #error "Please port gnulib fseeko.c to your platform! Look at the code in fseeko.c, then report this to bug-gnulib."
 #endif
     {
-      /* We get here when an fflush() call immediately preceded this one.  We
-         know there are no buffers.
-         POSIX requires us to modify the file descriptor's position.
-         But we cannot position beyond end of file here.  */
-      off_t pos =
-        lseek (fileno (fp),
-               whence == SEEK_END && offset > 0 ? 0 : offset,
-               whence);
+      /* We get here when an fflush() call immediately preceded this one (or
+         if ftell() has created buffers but no I/O has occurred on a
+         newly-opened stream).  We know there are no buffers.  */
+      off_t pos = lseek (fileno (fp), offset, whence);
       if (pos == -1)
         {
-#if defined __sferror || defined __DragonFly__ /* FreeBSD, NetBSD, OpenBSD, DragonFly, MacOS X, Cygwin */
+#if defined __sferror || defined __DragonFly__ || defined __ANDROID__
+          /* FreeBSD, NetBSD, OpenBSD, DragonFly, Mac OS X, Cygwin, Android */
           fp_->_flags &= ~__SOFF;
 #endif
           return -1;
@@ -110,8 +125,10 @@ fseeko (FILE *fp, off_t offset, int whence)
 
 #if defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
       fp->_flags &= ~_IO_EOF_SEEN;
-#elif defined __sferror || defined __DragonFly__ /* FreeBSD, NetBSD, OpenBSD, DragonFly, MacOS X, Cygwin */
-# if defined __CYGWIN__
+      fp->_offset = pos;
+#elif defined __sferror || defined __DragonFly__ || defined __ANDROID__
+      /* FreeBSD, NetBSD, OpenBSD, DragonFly, Mac OS X, Cygwin, Android */
+# if defined __CYGWIN__ || (defined __NetBSD__ && __NetBSD_Version__ >= 600000000)
       /* fp_->_offset is typed as an integer.  */
       fp_->_offset = pos;
 # else
@@ -133,16 +150,13 @@ fseeko (FILE *fp, off_t offset, int whence)
       fp_->_flags &= ~__SEOF;
 #elif defined __EMX__               /* emx+gcc */
       fp->_flags &= ~_IOEOF;
-#elif defined _IOERR                /* AIX, HP-UX, IRIX, OSF/1, Solaris, OpenServer, mingw */
+#elif defined _IOERR                /* AIX, HP-UX, IRIX, OSF/1, Solaris, OpenServer, mingw, NonStop Kernel */
       fp->_flag &= ~_IOEOF;
 #elif defined __MINT__              /* Atari FreeMiNT */
       fp->__offset = pos;
       fp->__eof = 0;
 #endif
-      /* If we were not requested to position beyond end of file, we're
-         done.  */
-      if (!(whence == SEEK_END && offset > 0))
-        return 0;
+      return 0;
     }
   return fseeko (fp, offset, whence);
 }