Initial import of sane-frontends version 1.0.14-9

9 files changed, 1070 insertions, 0 deletions

diff --git a/include/Makefile.in b/include/Makefile.in
new file mode 100644
index 0000000..7ef48dd
--- /dev/null
+++ b/include/Makefile.in
@@ -0,0 +1,71 @@
+SHELL = /bin/sh
+
+VPATH = @srcdir@
+srcdir = @srcdir@
+top_srcdir = @top_srcdir@
+top_builddir = ..
+
+PACKAGE = @PACKAGE@
+VERSION = @VERSION@
+distdir = $(top_srcdir)/$(PACKAGE)-$(VERSION)
+
+prefix = @prefix@
+exec_prefix = @exec_prefix@
+bindir = @bindir@
+sbindir = @sbindir@
+libexecdir = @libexecdir@
+datadir = @datadir@
+sysconfdir = @sysconfdir@
+sharedstatedir = @sharedstatedir@
+localstatedir = @localstatedir@
+libdir = @libdir@
+infodir = @infodir@
+mandir = @mandir@
+includedir = @includedir@
+oldincludedir = /usr/include
+configdir = ${sysconfdir}/sane.d
+sanedatadir = ${datadir}/sane
+docdir=$(prefix)/doc/sane-@VERSION@
+
+MKDIR = $(top_srcdir)/mkinstalldirs
+INSTALL = @INSTALL@
+INSTALL_PROGRAM = @INSTALL_PROGRAM@
+INSTALL_DATA = @INSTALL_DATA@
+LN_S = @LN_S@
+
+@SET_MAKE@
+
+SANE_INCLUDES = $(addprefix $(top_srcdir)/include/sane/,config.h.in sanei.h \
+  sanei_codec_ascii.h sanei_codec_bin.h sanei_debug.h sanei_wire.h)
+OTHER_INCLUDES = $(addprefix $(top_srcdir)/include/,Makefile.in getopt.h \
+  lalloca.h)
+
+DISTFILES = $(SANE_INCLUDES) $(OTHER_INCLUDES)
+
+.PHONY: all clean depend dist install uninstall
+
+all:
+
+dist: $(DISTFILES)
+	$(MKDIR) $(distdir)/include/sane
+	for file in $(OTHER_INCLUDES); do \
+	  ln $$file $(distdir)/include 2> /dev/null \
+	    || cp -p $$file $(distdir)/include; \
+	done
+	for file in $(SANE_INCLUDES); do \
+	  ln $$file $(distdir)/include/sane 2> /dev/null \
+	    || cp -p $$file $(distdir)/include/sane; \
+	done
+
+install:
+
+uninstall:
+
+clean:
+
+depend:
+
+distclean: clean
+	rm -f *~ sane/*~
+	rm -f sane/config.h
+	rm -f Makefile
diff --git a/include/getopt.h b/include/getopt.h
new file mode 100644
index 0000000..aa7877f
--- /dev/null
+++ b/include/getopt.h
@@ -0,0 +1,129 @@
+/* Declarations for getopt.
+   Copyright (C) 1989, 90, 91, 92, 93, 94 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 the
+   Free Software Foundation; either version 2, or (at your option) any
+   later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#ifndef _GETOPT_H
+#define _GETOPT_H 1
+
+#ifdef	__cplusplus
+extern "C" {
+#endif
+
+/* For communication from `getopt' to the caller.
+   When `getopt' finds an option that takes an argument,
+   the argument value is returned here.
+   Also, when `ordering' is RETURN_IN_ORDER,
+   each non-option ARGV-element is returned here.  */
+
+extern char *optarg;
+
+/* Index in ARGV of the next element to be scanned.
+   This is used for communication to and from the caller
+   and for communication between successive calls to `getopt'.
+
+   On entry to `getopt', zero means this is the first call; initialize.
+
+   When `getopt' returns EOF, this is the index of the first of the
+   non-option elements that the caller should itself scan.
+
+   Otherwise, `optind' communicates from one call to the next
+   how much of ARGV has been scanned so far.  */
+
+extern int optind;
+
+/* Callers store zero here to inhibit the error message `getopt' prints
+   for unrecognized options.  */
+
+extern int opterr;
+
+/* Set to an option character which was unrecognized.  */
+
+extern int optopt;
+
+/* Describe the long-named options requested by the application.
+   The LONG_OPTIONS argument to getopt_long or getopt_long_only is a vector
+   of `struct option' terminated by an element containing a name which is
+   zero.
+
+   The field `has_arg' is:
+   no_argument		(or 0) if the option does not take an argument,
+   required_argument	(or 1) if the option requires an argument,
+   optional_argument 	(or 2) if the option takes an optional argument.
+
+   If the field `flag' is not NULL, it points to a variable that is set
+   to the value given in the field `val' when the option is found, but
+   left unchanged if the option is not found.
+
+   To have a long-named option do something other than set an `int' to
+   a compiled-in constant, such as set a value from `optarg', set the
+   option's `flag' field to zero and its `val' field to a nonzero
+   value (the equivalent single-letter option character, if there is
+   one).  For long options that have a zero `flag' field, `getopt'
+   returns the contents of the `val' field.  */
+
+struct option
+{
+#if defined (__STDC__) && __STDC__
+  const char *name;
+#else
+  char *name;
+#endif
+  /* has_arg can't be an enum because some compilers complain about
+     type mismatches in all the code that assumes it is an int.  */
+  int has_arg;
+  int *flag;
+  int val;
+};
+
+/* Names for the values of the `has_arg' field of `struct option'.  */
+
+#define	no_argument		0
+#define required_argument	1
+#define optional_argument	2
+
+#if defined (__STDC__) && __STDC__
+#ifdef __GNU_LIBRARY__
+/* Many other libraries have conflicting prototypes for getopt, with
+   differences in the consts, in stdlib.h.  To avoid compilation
+   errors, only prototype getopt for the GNU C library.  */
+extern int getopt (int argc, char *const *argv, const char *shortopts);
+#else /* not __GNU_LIBRARY__ */
+extern int getopt ();
+#endif /* __GNU_LIBRARY__ */
+extern int getopt_long (int argc, char *const *argv, const char *shortopts,
+		        const struct option *longopts, int *longind);
+extern int getopt_long_only (int argc, char *const *argv,
+			     const char *shortopts,
+		             const struct option *longopts, int *longind);
+
+/* Internal only.  Users should not call this directly.  */
+extern int _getopt_internal (int argc, char *const *argv,
+			     const char *shortopts,
+		             const struct option *longopts, int *longind,
+			     int long_only);
+#else /* not __STDC__ */
+extern int getopt ();
+extern int getopt_long ();
+extern int getopt_long_only ();
+
+extern int _getopt_internal ();
+#endif /* __STDC__ */
+
+#ifdef	__cplusplus
+}
+#endif
+
+#endif /* _GETOPT_H */
diff --git a/include/lalloca.h b/include/lalloca.h
new file mode 100644
index 0000000..0fd4fc1
--- /dev/null
+++ b/include/lalloca.h
@@ -0,0 +1,47 @@
+/* sane - Scanner Access Now Easy.
+   Copyright (C) 1997 The Free Software Foundation
+   This file is part of the SANE package.
+
+   SANE is free software; you can redistribute it and/or modify it under
+   the terms of the GNU General Public License as published by the Free
+   Software Foundation; either version 2 of the License, or (at your
+   option) any later version.
+
+   SANE is distributed in the hope that it will be useful, but WITHOUT
+   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+   for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with sane; see the file COPYING.  If not, write to the Free
+   Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+   This file implements a dynamic linking based SANE meta backend.  It
+   allows managing an arbitrary number of SANE backends by using
+   dynamic linking to load backends on demand.  */
+
+#ifndef lalloca_h
+#define lalloca_h
+
+/* AIX requires this to be the first thing in the file.  */
+#ifdef __GNUC__
+# define alloca __builtin_alloca
+#else
+# if HAVE_ALLOCA_H
+#  include <alloca.h>
+# else
+#  ifdef _AIX
+#pragma alloca
+#  else
+#   ifndef alloca /* predefined by HP cc +Olibcalls */
+#    if __STDC__
+void *alloca ();
+#    else
+char *alloca ();
+#    endif
+#   endif
+#  endif
+# endif
+#endif
+
+#endif /* lalloca_h */
diff --git a/include/sane/config.h.in b/include/sane/config.h.in
new file mode 100644
index 0000000..baf35be
--- /dev/null
+++ b/include/sane/config.h.in
@@ -0,0 +1,219 @@
+/* include/sane/config.h.in.  Generated from configure.in by autoheader.  */
+
+/* Define to one of `_getb67', `GETB67', `getb67' for Cray-2 and Cray-YMP
+   systems. This function is required for `alloca.c' support on those systems.
+   */
+#undef CRAY_STACKSEG_END
+
+/* Define to 1 if using `alloca.c'. */
+#undef C_ALLOCA
+
+/* Define to 1 if GIMP 1.2 support wanted */
+#undef ENABLE_GIMP_1_2
+
+/* Define to 1 if you have `alloca', as a function or macro. */
+#undef HAVE_ALLOCA
+
+/* Define to 1 if you have <alloca.h> and it should be used (not on Ultrix).
+   */
+#undef HAVE_ALLOCA_H
+
+/* Define to 1 if you have the `atexit' function. */
+#undef HAVE_ATEXIT
+
+/* Define to 1 if you have the <fcntl.h> header file. */
+#undef HAVE_FCNTL_H
+
+/* Define to 1 if you have the `getenv' function. */
+#undef HAVE_GETENV
+
+/* Define to 1 if you have the `getpagesize' function. */
+#undef HAVE_GETPAGESIZE
+
+/* Define to 1 if you have the <inttypes.h> header file. */
+#undef HAVE_INTTYPES_H
+
+/* Define to 1 if you have the `isfdtype' function. */
+#undef HAVE_ISFDTYPE
+
+/* Define to 1 if you have the <libc.h> header file. */
+#undef HAVE_LIBC_H
+
+/* Define to 1 if you have the <libgimp/gimpfeatures.h> header file. */
+#undef HAVE_LIBGIMP_GIMPFEATURES_H
+
+/* Define to 1 if you have the <libgimp/gimp.h> header file. */
+#undef HAVE_LIBGIMP_GIMP_H
+
+/* Define to 1 if you have the `m' library (-lm). */
+#undef HAVE_LIBM
+
+/* Define to 1 if you have the `socket' library (-lsocket). */
+#undef HAVE_LIBSOCKET
+
+/* Define to 1 if you have the `syslog' library (-lsyslog). */
+#undef HAVE_LIBSYSLOG
+
+/* Define to 1 if you have the <memory.h> header file. */
+#undef HAVE_MEMORY_H
+
+/* Define to 1 if you have the `mkdir' function. */
+#undef HAVE_MKDIR
+
+/* Define to 1 if you have a working `mmap' system call. */
+#undef HAVE_MMAP
+
+/* Define to 1 if you have the <os2.h> header file. */
+#undef HAVE_OS2_H
+
+/* Define to 1 if you have the `sigprocmask' function. */
+#undef HAVE_SIGPROCMASK
+
+/* Define to 1 if you have the `snprintf' function. */
+#undef HAVE_SNPRINTF
+
+/* Define to 1 if you have the <stdint.h> header file. */
+#undef HAVE_STDINT_H
+
+/* Define to 1 if you have the <stdlib.h> header file. */
+#undef HAVE_STDLIB_H
+
+/* Define to 1 if you have the `strcasecmp' function. */
+#undef HAVE_STRCASECMP
+
+/* Define to 1 if you have the `strdup' function. */
+#undef HAVE_STRDUP
+
+/* Define to 1 if you have the `strftime' function. */
+#undef HAVE_STRFTIME
+
+/* Define to 1 if you have the <strings.h> header file. */
+#undef HAVE_STRINGS_H
+
+/* Define to 1 if you have the <string.h> header file. */
+#undef HAVE_STRING_H
+
+/* Define to 1 if you have the `strncasecmp' function. */
+#undef HAVE_STRNCASECMP
+
+/* Define to 1 if you have the `strndup' function. */
+#undef HAVE_STRNDUP
+
+/* Define to 1 if you have the `strsep' function. */
+#undef HAVE_STRSEP
+
+/* Define to 1 if you have the `strstr' function. */
+#undef HAVE_STRSTR
+
+/* Define to 1 if you have the `strtod' function. */
+#undef HAVE_STRTOD
+
+/* Define to 1 if you have the <sys/stat.h> header file. */
+#undef HAVE_SYS_STAT_H
+
+/* Define to 1 if you have the <sys/time.h> header file. */
+#undef HAVE_SYS_TIME_H
+
+/* Define to 1 if you have the <sys/types.h> header file. */
+#undef HAVE_SYS_TYPES_H
+
+/* Define to 1 if you have the <unistd.h> header file. */
+#undef HAVE_UNISTD_H
+
+/* Define to 1 if you have the `usleep' function. */
+#undef HAVE_USLEEP
+
+/* Define to 1 if you have the `vsyslog' function. */
+#undef HAVE_VSYSLOG
+
+/* Define to the name of the distribution. */
+#undef PACKAGE
+
+/* Define to the address where bug reports for this package should be sent. */
+#undef PACKAGE_BUGREPORT
+
+/* Define to the full name of this package. */
+#undef PACKAGE_NAME
+
+/* Define to the full name and version of this package. */
+#undef PACKAGE_STRING
+
+/* Define to the one symbol short name of this package. */
+#undef PACKAGE_TARNAME
+
+/* Define to the name and the version of the distribution. */
+#undef PACKAGE_VERSION
+
+/* Define as the return type of signal handlers (`int' or `void'). */
+#undef RETSIGTYPE
+
+/* If using the C implementation of alloca, define if you know the
+   direction of stack growth for your system; otherwise it will be
+   automatically deduced at run-time.
+        STACK_DIRECTION > 0 => grows toward higher addresses
+        STACK_DIRECTION < 0 => grows toward lower addresses
+        STACK_DIRECTION = 0 => direction of growth unknown */
+#undef STACK_DIRECTION
+
+/* Define to 1 if you have the ANSI C header files. */
+#undef STDC_HEADERS
+
+/* Define to the version of the distribution. */
+#undef VERSION
+
+/* Define to 1 if on AIX 3.
+   System headers sometimes define this.
+   We just want to avoid a redefinition error message.  */
+#ifndef _ALL_SOURCE
+# undef _ALL_SOURCE
+#endif
+
+/* Define to 1 if on MINIX. */
+#undef _MINIX
+
+/* Define to 2 if the system does not provide POSIX.1 features except with
+   this defined. */
+#undef _POSIX_1_SOURCE
+
+/* Define to 1 if you need to in order for `stat' and other things to work. */
+#undef _POSIX_SOURCE
+
+/* Define to empty if `const' does not conform to ANSI C. */
+#undef const
+
+/* Define as `__inline' if that's what the C compiler calls it, or to nothing
+   if it is not supported. */
+#undef inline
+
+/* Define to `int' if <sys/types.h> does not define. */
+#undef pid_t
+
+/* Define to `unsigned' if <sys/types.h> does not define. */
+#undef size_t
+
+/* Define to `long' if <sys/types.h> does not define. */
+#undef ssize_t
+
+/* Define for OS/2 only */
+#undef strcasecmp
+
+/* Define for OS/2 only */
+#undef strncasecmp
+
+/* Define to `unsigned char' if <sys/types.h> does not define. */
+#undef u_char
+
+/* Define to `unsigned int' if <sys/types.h> does not define. */
+#undef u_int
+
+/* Define to `unsigned short' if <sys/types.h> does not define. */
+#undef u_int16_t
+
+/* Define to `unsigned int' if <sys/types.h> does not define. */
+#undef u_int32_t
+
+/* Define to `unsigned char' if <sys/types.h> does not define. */
+#undef u_int8_t
+
+/* Define to `unsigned long' if <sys/types.h> does not define. */
+#undef u_long
diff --git a/include/sane/sanei.h b/include/sane/sanei.h
new file mode 100644
index 0000000..d736b17
--- /dev/null
+++ b/include/sane/sanei.h
@@ -0,0 +1,173 @@
+/* sane - Scanner Access Now Easy.
+   Copyright (C) 1996 David Mosberger-Tang and Andreas Beck
+   Copyright (C) 2002, 2003 Henning Meier-Geinitz
+
+   This file is part of the SANE package.
+
+   SANE is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+
+   SANE is distributed in the hope that it will be useful, but WITHOUT
+   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+   or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
+   License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with sane; see the file COPYING.  If not, write to the Free
+   Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+   As a special exception, the authors of SANE give permission for
+   additional uses of the libraries contained in this release of SANE.
+   
+   The exception is that, if you link a SANE library with other files
+   to produce an executable, this does not by itself cause the
+   resulting executable to be covered by the GNU General Public
+   License.  Your use of that executable is in no way restricted on
+   account of linking the SANE library code into it.
+   
+   This exception does not, however, invalidate any other reasons why
+   the executable file might be covered by the GNU General Public
+   License.
+   
+   If you submit changes to SANE to the maintainers to be included in
+   a subsequent release, you agree by submitting the changes that
+   those changes may be distributed with this exception intact.
+   
+   If you write modifications of your own for SANE, it is your choice
+   whether to permit this exception to apply to your modifications.
+   If you do not wish that, delete this exception notice. 
+*/
+
+/** @file sanei.h
+ * Convenience macros and function declarations for backends
+ * @sa sanei_backend.h sanei_thread.h
+ */
+
+/* Doxygen documentation */
+
+/** @mainpage SANEI (SANE internal routines) documentation
+ *
+ * @image html ../images/sane-logo2.jpg
+ * @section intro Introduction
+ *
+ * The header files in the include/sane/ directory named sanei_*.h provide
+ * function declarations and macros that can be used by every SANE backend.
+ * Their implementations can be found in the sanei/ directory. The code aims
+ * to be platform-independent to avoid lots of \#ifdef code in the backends.
+ * Please use the SANEI functions wherever possible.
+ *
+ * This documentation was created by the use of doxygen, the 
+ * doc/doxygen-sanei.conf configuration file and dcoumentation in the sanei_*.h
+ * files.
+ *
+ * This documenation is far from complete. Any help is appreciated.
+ *
+ * @section additional Additional documentation
+ * - The SANE standard can be found at <a 
+ *   href="http://www.sane-project.org/html/">the SANE webserver</a>.
+ * - Information on how to write a backend: <a
+ *   href="../backend-writing.txt">backend-writing.txt</a>.
+ * - General SANE documentation is on <a
+ *   href="http://www.sane-project.org/docs.html>the SANE documentation
+ *   page</a>.
+ * 
+ * @section contact Contact 
+ *
+ * The common way to contact the developers of SANE is the sane-devel
+ * mailing list. See the <a
+ * href="http://www.sane-project.org/mailing-lists.html">mailing list webpage</a>
+ * for details. That's the place to ask questions, report bugs, or announce
+ * a new backend.
+ * 
+ */
+
+#ifndef sanei_h
+#define sanei_h
+
+#include <sane/sane.h>
+
+/** @name Public macros and functions
+ * @{
+ */
+/** @def STRINGIFY(x)
+ * Turn parameter into string.
+ */
+/** @def PASTE(x,y)
+ * Concatenate parameters.
+ *
+ */
+/** @def NELEMS(a)
+ * Return number of elements of an array.
+ *
+ */
+
+/** @fn extern SANE_Status sanei_check_value (const SANE_Option_Descriptor * opt, void * value);
+ * Check the constraints of a SANE option.
+ *
+ * @param opt   option to check
+ * @param value value of the option
+ *
+ * @return 
+ * - SANE_STATUS_GOOD     - on success
+ * - SANE_STATUS_INVAL    - if the value doesn't fit inside the constraint
+ *   or any other error occured
+ * @sa sanei_constrain_value()
+ */
+
+/** @fn extern SANE_Status sanei_constrain_value (const SANE_Option_Descriptor * opt, void * value, SANE_Word * info);
+ * Check the constraints of a SANE option and adjust its value if necessary.
+ *
+ * Depending on the type of the option and constraint, value is modified
+ * to fit inside constraint.
+ *
+ * @param opt   option to check
+ * @param value value of the option
+ * @param info  info is set to SANE_INFO_INEXACT if value was changed
+ *
+ * @return 
+ * - SANE_STATUS_GOOD     - on success
+ * - SANE_STATUS_INVAL    - if the function wasn't able to fit value into the
+ *   constraint or any other error occured
+ * @sa sanei_check_value()
+ */
+
+/* @} */
+
+/** @name Private macros
+ * @{
+ */
+/** @def STRINGIFY1(x)
+ * Internal use only.
+ */
+/** @def PASTE1(x,y)
+ * Internal use only.
+ */
+/* @} */
+
+/* A few convenience macros:  */
+/** @hideinitializer */
+#define NELEMS(a)	((int)(sizeof (a) / sizeof (a[0])))
+
+/** @hideinitializer */
+#define STRINGIFY1(x)	#x
+/** @hideinitializer */
+#define STRINGIFY(x)	STRINGIFY1(x)
+
+/** @hideinitializer */
+#define PASTE1(x,y)	x##y
+/** @hideinitializer */
+#define PASTE(x,y)	PASTE1(x,y)
+
+extern SANE_Status sanei_check_value (const SANE_Option_Descriptor * opt,
+				      void * value);
+
+extern SANE_Status sanei_constrain_value (const SANE_Option_Descriptor * opt,
+					  void * value, SANE_Word * info);
+
+
+extern int sanei_save_values (int fd, SANE_Handle device);
+extern int sanei_load_values (int fd, SANE_Handle device);
+
+#endif /* sanei_h */
diff --git a/include/sane/sanei_codec_ascii.h b/include/sane/sanei_codec_ascii.h
new file mode 100644
index 0000000..991499a
--- /dev/null
+++ b/include/sane/sanei_codec_ascii.h
@@ -0,0 +1,62 @@
+/* sane - Scanner Access Now Easy.
+   Copyright (C) 1996 David Mosberger-Tang and Andreas Beck
+   This file is part of the SANE package.
+
+   SANE is free software; you can redistribute it and/or modify it under
+   the terms of the GNU General Public License as published by the Free
+   Software Foundation; either version 2 of the License, or (at your
+   option) any later version.
+
+   SANE is distributed in the hope that it will be useful, but WITHOUT
+   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+   for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with sane; see the file COPYING.  If not, write to the Free
+   Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+   As a special exception, the authors of SANE give permission for
+   additional uses of the libraries contained in this release of SANE.
+
+   The exception is that, if you link a SANE library with other files
+   to produce an executable, this does not by itself cause the
+   resulting executable to be covered by the GNU General Public
+   License.  Your use of that executable is in no way restricted on
+   account of linking the SANE library code into it.
+
+   This exception does not, however, invalidate any other reasons why
+   the executable file might be covered by the GNU General Public
+   License.
+
+   If you submit changes to SANE to the maintainers to be included in
+   a subsequent release, you agree by submitting the changes that
+   those changes may be distributed with this exception intact.
+
+   If you write modifications of your own for SANE, it is your choice
+   whether to permit this exception to apply to your modifications.
+   If you do not wish that, delete this exception notice.
+*/
+
+/** @file sanei_codec_ascii.h
+ * ASCII codec for network and file transmissions
+ *
+ * Instead translating data to a byte stream this codec uses ASCII hex numbers.
+ * Therefore it can be used for streams that are not 8-bit clean or which can
+ * only use printable characters. It's currently used for saving/restoring
+ * data to/from disk.
+ *
+ * @sa sanei_codec_bin.h sanei_net.h sanei_wire.h
+ */
+#ifndef sanei_codec_ascii_h
+#define sanei_codec_ascii_h
+
+/** Initialize the ascii codec
+ *
+ * Set the i/o functions of the Wire to those of the ASCII codec.
+ *
+ * @param w Wire
+ */
+extern void sanei_codec_ascii_init (Wire *w);
+
+#endif /* sanei_codec_ascii_h */
diff --git a/include/sane/sanei_codec_bin.h b/include/sane/sanei_codec_bin.h
new file mode 100644
index 0000000..ba17bac
--- /dev/null
+++ b/include/sane/sanei_codec_bin.h
@@ -0,0 +1,61 @@
+/* sane - Scanner Access Now Easy.
+   Copyright (C) 1996 David Mosberger-Tang and Andreas Beck
+   This file is part of the SANE package.
+
+   SANE is free software; you can redistribute it and/or modify it under
+   the terms of the GNU General Public License as published by the Free
+   Software Foundation; either version 2 of the License, or (at your
+   option) any later version.
+
+   SANE is distributed in the hope that it will be useful, but WITHOUT
+   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+   for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with sane; see the file COPYING.  If not, write to the Free
+   Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+   As a special exception, the authors of SANE give permission for
+   additional uses of the libraries contained in this release of SANE.
+
+   The exception is that, if you link a SANE library with other files
+   to produce an executable, this does not by itself cause the
+   resulting executable to be covered by the GNU General Public
+   License.  Your use of that executable is in no way restricted on
+   account of linking the SANE library code into it.
+
+   This exception does not, however, invalidate any other reasons why
+   the executable file might be covered by the GNU General Public
+   License.
+
+   If you submit changes to SANE to the maintainers to be included in
+   a subsequent release, you agree by submitting the changes that
+   those changes may be distributed with this exception intact.
+
+   If you write modifications of your own for SANE, it is your choice
+   whether to permit this exception to apply to your modifications.
+   If you do not wish that, delete this exception notice.
+*/
+
+/** @file sanei_codec_bin.h
+ * Binary codec for network transmissions
+ *
+ * Transtale data to a byte stream while taking byte order problems into
+ * account. This codec is currently used for saned and the network backend.
+ *
+ * @sa sanei_codec_ascii.h sanei_net.h sanei_wire.h
+ */
+
+#ifndef sanei_codec_bin_h
+#define sanei_codec_bin_h
+
+/** Initialize the binary codec
+ *
+ * Set the i/o functions of the Wire to those of the binary codec.
+ *
+ * @param w Wire
+ */
+extern void sanei_codec_bin_init (Wire *w);
+
+#endif /* sanei_codec_bin_h */
diff --git a/include/sane/sanei_debug.h b/include/sane/sanei_debug.h
new file mode 100644
index 0000000..5cf2e45
--- /dev/null
+++ b/include/sane/sanei_debug.h
@@ -0,0 +1,176 @@
+/** @file sanei_debug.h
+ * Support for printing debug messages.
+ *
+ * Use the functions of this header file to print debug or warning messages.
+ */
+
+#ifndef _SANEI_DEBUG_H
+#define _SANEI_DEBUG_H
+
+#include <sane/sanei.h>
+
+/** @name Public macros
+ * These macros can be used in backends and other SANE-related
+ * code.
+ *
+ * Before including sanei_debug.h, the following macros must be set:
+ *
+ * - BACKEND_NAME - The name of your backend without double-quotes (must be set in any case)
+ * - STUBS - If this is defined, no macros will be included. Used in 
+ *   backends consisting of more than one .c file.
+ * - DEBUG_DECLARE_ONLY - Generates prototypes instead of functions. Used in 
+ *   backends consisting of more than one .c file.
+ * - DEBUG_NOT_STATIC - Doesn't generate static functions. Used in header files if
+ *   they are include in more than one .c file.
+ *
+ * @{ 
+ */
+
+/** @def DBG_INIT()
+ * Initialize sanei_debug.
+ *
+ * Call this function before you use any DBG function.
+ */
+
+/** @def DBG(level, fmt, ...)
+ * Print a message at debug level `level' or higher using a printf-like
+ * function. Example: DBG(1, "sane_open: opening fd \%d\\n", fd).
+ *
+ * @param level debug level
+ * @param fmt format (see man 3 printf for details)
+ * @param ... additional arguments
+ */
+
+/** @def IF_DBG(x)
+ * Compile code only if debugging is enabled.
+ *
+ * Expands to x if debug support is enabled at compile-time. If NDEBUG is 
+ * defined at compile-time this macro expands to nothing.
+ *
+ * @param x code to expand when debugging is enabled
+ */
+
+/**
+ * @def DBG_LEVEL
+ * Current debug level. 
+ *
+ * You can only read this "variable".
+ */
+
+/** @def ENTRY(name)
+ * Expands to sane_BACKEND_NAME_name.
+ *
+ * Example: ENTRY(init) in mustek.c will expand to sane_mustek_init.
+ */
+
+/* @} */
+
+/** @name Internal macros and functions
+ * Do not use in your own code.
+ * @{
+ */
+
+/** @def DBG_LOCAL
+ * Do not use in backends directly.
+ *
+ * Internal wrapper for printing function.
+ */
+
+/** @fn extern void sanei_init_debug (const char * backend, int * debug_level_var);
+ * Do not use in backends directly.
+ *
+ * Actual init function.
+ */
+
+/** @fn extern void sanei_debug_msg (int level, int max_level, const char *be, const char *fmt, va_list ap);
+ * Do not use in backends directly.
+ *
+ * Actual printing function.
+ */
+/* @} */
+
+                                  /** @hideinitializer*/
+#define ENTRY(name)     PASTE(PASTE(PASTE(sane_,BACKEND_NAME),_),name)
+
+#ifdef NDEBUG
+  
+extern void sanei_debug_ndebug (int level, const char *msg, ...);
+	
+# define DBG_LEVEL	(0)
+# define DBG_INIT()
+# define DBG		sanei_debug_ndebug
+# define IF_DBG(x)
+	
+#else /* !NDEBUG */
+	
+                                  /** @hideinitializer*/
+# define DBG_LEVEL      PASTE(sanei_debug_,BACKEND_NAME)
+
+# if defined(BACKEND_NAME) && !defined(STUBS)
+#  ifdef DEBUG_DECLARE_ONLY
+extern int DBG_LEVEL;
+#  else /* !DEBUG_DECLARE_ONLY */
+int DBG_LEVEL = 0;
+#  endif /* DEBUG_DECLARE_ONLY */
+# endif /* BACKEND_NAME && !STUBS */
+
+                                  /** @hideinitializer*/
+# define DBG_INIT()                                     \
+  sanei_init_debug (STRINGIFY(BACKEND_NAME), &DBG_LEVEL)
+
+                                  /** @hideinitializer*/
+# define DBG_LOCAL	PASTE(DBG_LEVEL,_call)
+
+
+# ifndef STUBS
+
+#  ifdef DEBUG_DECLARE_ONLY
+
+extern void DBG_LOCAL (int level, const char *msg, ...) 
+#ifdef __GNUC__
+__attribute__ ((format (printf, 2, 3)))
+#endif
+;
+
+#  else /* !DEBUG_DECLARE_ONLY */
+
+#   include <stdarg.h>
+	
+extern void sanei_debug_msg 
+  (int level, int max_level, const char *be, const char *fmt, va_list ap);
+
+#ifdef __GNUC__
+#   ifndef DEBUG_NOT_STATIC
+static
+#   endif /* !DEBUG_NOT_STATIC */
+void DBG_LOCAL (int level, const char *msg, ...) __attribute__ ((format (printf, 2, 3)));
+#endif /* __GNUC__ */
+
+#   ifndef DEBUG_NOT_STATIC
+static
+#   endif /* !DEBUG_NOT_STATIC */
+void
+DBG_LOCAL (int level, const char *msg, ...)
+{
+  va_list ap;
+
+  va_start (ap, msg);
+  sanei_debug_msg (level, DBG_LEVEL, STRINGIFY(BACKEND_NAME), msg, ap);
+  va_end (ap);
+}
+
+#  endif /* DEBUG_DECLARE_ONLY */
+
+# endif /* !STUBS */
+
+                                  /** @hideinitializer*/
+# define DBG            DBG_LOCAL
+
+extern void sanei_init_debug (const char * backend, int * debug_level_var);
+  
+                                  /** @hideinitializer*/
+# define IF_DBG(x)      x
+
+#endif /* NDEBUG */
+
+#endif /* _SANEI_DEBUG_H */
diff --git a/include/sane/sanei_wire.h b/include/sane/sanei_wire.h
new file mode 100644
index 0000000..95be5cf
--- /dev/null
+++ b/include/sane/sanei_wire.h
@@ -0,0 +1,132 @@
+/* sane - Scanner Access Now Easy.
+   Copyright (C) 1997 David Mosberger-Tang
+   This file is part of the SANE package.
+
+   SANE is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+
+   SANE is distributed in the hope that it will be useful, but WITHOUT
+   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+   or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
+   License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with sane; see the file COPYING.  If not, write to the Free
+   Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+   As a special exception, the authors of SANE give permission for
+   additional uses of the libraries contained in this release of SANE.
+
+   The exception is that, if you link a SANE library with other files
+   to produce an executable, this does not by itself cause the
+   resulting executable to be covered by the GNU General Public
+   License.  Your use of that executable is in no way restricted on
+   account of linking the SANE library code into it.
+
+   This exception does not, however, invalidate any other reasons why
+   the executable file might be covered by the GNU General Public
+   License.
+
+   If you submit changes to SANE to the maintainers to be included in
+   a subsequent release, you agree by submitting the changes that
+   those changes may be distributed with this exception intact.
+
+   If you write modifications of your own for SANE, it is your choice
+   whether to permit this exception to apply to your modifications.
+   If you do not wish that, delete this exception notice.
+
+   Support routines to translate internal datatypes into a wire-format
+   (used for RPCs and to save/restore options).  */
+
+#ifndef sanei_wire_h
+#define sanei_wire_h
+
+#include <sys/types.h>
+
+#define MAX_MEM (1024 * 1024)
+
+typedef enum
+  {
+    WIRE_ENCODE = 0,
+    WIRE_DECODE,
+    WIRE_FREE
+  }
+WireDirection;
+
+struct Wire;
+
+typedef void (*WireCodecFunc) (struct Wire *w, void *val_ptr);
+typedef ssize_t (*WireReadFunc) (int fd, void * buf, size_t len);
+typedef ssize_t (*WireWriteFunc) (int fd, const void * buf, size_t len);
+
+typedef struct Wire
+  {
+    int version;		/* protocol version in use */
+    WireDirection direction;
+    int status;
+    int allocated_memory;
+    struct
+      {
+	WireCodecFunc w_byte;
+	WireCodecFunc w_char;
+	WireCodecFunc w_word;
+	WireCodecFunc w_string;
+      }
+    codec;
+    struct
+      {
+	size_t size;
+	char *curr;
+	char *start;
+	char *end;
+      }
+    buffer;
+    struct
+      {
+	int fd;
+	WireReadFunc read;
+	WireWriteFunc write;
+      }
+    io;
+  }
+Wire;
+
+extern void sanei_w_init (Wire *w, void (*codec_init)(Wire *));
+extern void sanei_w_exit (Wire *w);
+extern void sanei_w_space (Wire *w, size_t howmuch);
+extern void sanei_w_void (Wire *w);
+extern void sanei_w_byte (Wire *w, SANE_Byte *v);
+extern void sanei_w_char (Wire *w, SANE_Char *v);
+extern void sanei_w_word (Wire *w, SANE_Word *v);
+extern void sanei_w_bool (Wire *w, SANE_Bool *v);
+extern void sanei_w_ptr (Wire *w, void **v, WireCodecFunc w_value,
+                         size_t value_size);
+extern void sanei_w_string (Wire *w, SANE_String *v);
+extern void sanei_w_status (Wire *w, SANE_Status *v);
+extern void sanei_w_constraint_type (Wire *w, SANE_Constraint_Type *v);
+extern void sanei_w_value_type (Wire *w, SANE_Value_Type *v);
+extern void sanei_w_unit (Wire *w, SANE_Unit *v);
+extern void sanei_w_action (Wire *w, SANE_Action *v);
+extern void sanei_w_frame (Wire *w, SANE_Frame *v);
+extern void sanei_w_range (Wire *w, SANE_Range *v);
+extern void sanei_w_range_ptr (Wire *w, SANE_Range **v);
+extern void sanei_w_device (Wire *w, SANE_Device *v);
+extern void sanei_w_device_ptr (Wire *w, SANE_Device **v);
+extern void sanei_w_option_descriptor (Wire *w, SANE_Option_Descriptor *v);
+extern void sanei_w_option_descriptor_ptr (Wire *w,
+					   SANE_Option_Descriptor **v);
+extern void sanei_w_parameters (Wire *w, SANE_Parameters *v);
+
+extern void sanei_w_array (Wire *w, SANE_Word *len, void **v,
+			   WireCodecFunc w_element, size_t element_size);
+
+extern void sanei_w_set_dir (Wire *w, WireDirection dir);
+extern void sanei_w_call (Wire *w, SANE_Word proc_num,
+			  WireCodecFunc w_arg, void *arg,
+			  WireCodecFunc w_reply, void *reply);
+extern void sanei_w_reply (Wire *w, WireCodecFunc w_reply, void *reply);
+extern void sanei_w_free (Wire *w, WireCodecFunc w_reply, void *reply);
+
+#endif /* sanei_wire_h */