Initial import of sane-frontends version 1.0.14-9

1 files changed, 169 insertions, 0 deletions

diff --git a/sanei/sanei_save_values.c b/sanei/sanei_save_values.c
new file mode 100644
index 0000000..195947c
--- /dev/null
+++ b/sanei/sanei_save_values.c
@@ -0,0 +1,169 @@
+/* sane - Scanner Access Now Easy.
+   Copyright (C) 1997 David Mosberger-Tang
+   This file is part of the SANE package.
+
+   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 of the
+   License, 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.
+
+   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.  */
+
+#ifdef __TANDEM
+#include <floss.h>
+#endif
+
+#include "sane/config.h"
+
+#include <stdlib.h>
+#include <unistd.h>
+#include <errno.h>
+#ifdef HAVE_LIBC_H
+# include <libc.h>	/* NeXTStep/OpenStep */
+#endif
+
+#include <sane/sane.h>
+#include "../include/sane/sanei_wire.h"
+#include "../include/sane/sanei_codec_ascii.h"
+
+int
+sanei_save_values (int fd, SANE_Handle device)
+{
+  const SANE_Option_Descriptor *opt;
+  size_t word_array_size = 0;
+  SANE_Word *word_array = 0;
+  size_t str_size = 0;
+  SANE_String str = 0;
+  SANE_Word word;
+  Wire w;
+  int i;
+
+  w.io.fd = fd;
+#ifdef __TANDEM
+  w.io.read = floss_read;
+  w.io.write = floss_write;
+#else
+  w.io.read = read;
+  w.io.write = write;
+#endif
+  sanei_w_init (&w, sanei_codec_ascii_init);
+  sanei_w_set_dir (&w, WIRE_ENCODE);
+
+  for (i = 0; (opt = sane_get_option_descriptor (device, i)); ++i)
+    {
+      if ((opt->cap & (SANE_CAP_SOFT_SELECT | SANE_CAP_SOFT_DETECT))
+	  !=  (SANE_CAP_SOFT_SELECT | SANE_CAP_SOFT_DETECT)
+	  || !opt->name)
+	/* if we can't query AND set the option, don't bother saving it */
+	continue;
+
+      switch (opt->type)
+	{
+	case SANE_TYPE_BOOL:
+	case SANE_TYPE_INT:
+	case SANE_TYPE_FIXED:
+	  if (opt->size == sizeof (SANE_Word))
+	    {
+	      if (sane_control_option (device, i, SANE_ACTION_GET_VALUE,
+				       &word, 0)
+		  != SANE_STATUS_GOOD)
+		continue;
+	      sanei_w_string (&w, (SANE_String *) &opt->name);
+	      sanei_w_word (&w, &word);
+	    }
+	  else
+	    {
+	      SANE_Int len = opt->size / sizeof (SANE_Word);
+
+	      if (opt->size > word_array_size)
+		{
+		  word_array_size =
+		    ((opt->size + 32*sizeof (SANE_Word))
+		     & ~(32*sizeof (SANE_Word) - 1));
+		  if (word_array)
+		    word_array = realloc (word_array, word_array_size);
+		  else
+		    word_array = malloc (word_array_size);
+
+		  if (word_array == 0)
+		    {
+		      /* Malloc failed, so return an error. */
+		      w.status = ENOMEM;
+		      return 1;
+		    }
+		}
+	      if (sane_control_option (device, i, SANE_ACTION_GET_VALUE,
+				       word_array, 0)
+		  != SANE_STATUS_GOOD)
+		continue;
+	      sanei_w_string (&w, (SANE_String *) &opt->name);
+	      sanei_w_array (&w, &len, (void **) &word_array,
+			     (WireCodecFunc) sanei_w_word, sizeof (SANE_Word));
+	    }
+	  break;
+
+	case SANE_TYPE_STRING:
+	  if (opt->size > str_size)
+	    {
+	      str_size = (opt->size + 1024) & ~1023;
+	      if (str)
+		str = realloc (str, str_size);
+	      else
+		str = malloc (str_size);
+
+	      if (str == 0)
+		{
+		  /* Malloc failed, so return an error. */
+		  w.status = ENOMEM;
+		  return 1;
+		}
+	    }
+	  if (sane_control_option (device, i, SANE_ACTION_GET_VALUE, str, 0)
+	      != SANE_STATUS_GOOD)
+	    continue;
+	  sanei_w_string (&w, (SANE_String *) &opt->name);
+	  sanei_w_string (&w, &str);
+	  break;
+
+	case SANE_TYPE_BUTTON:
+	case SANE_TYPE_GROUP:
+	  break;
+	}
+    }
+  sanei_w_set_dir (&w, WIRE_DECODE);
+
+  if (word_array)
+    free (word_array);
+  if (str)
+    free (str);
+  return 0;
+}