1 files changed, 150 insertions, 0 deletions
diff --git a/sanei/sanei_init_debug.c b/sanei/sanei_init_debug.c
new file mode 100644
index 0000000..bb5b755
--- /dev/null
+++ b/sanei/sanei_init_debug.c
@@ -0,0 +1,150 @@
+/* sane - Scanner Access Now Easy.
+   Copyright (C) 1996, 1997 David Mosberger-Tang and Andreas Beck
+   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.  */
+
+#include "../include/sane/config.h"
+
+#include <ctype.h>
+#include <stdio.h>
+#include <stdlib.h>
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#include <string.h>
+#include <stdarg.h>
+#ifdef HAVE_VSYSLOG
+#include <syslog.h>
+#endif
+#ifdef HAVE_OS2_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+#include <sys/stat.h>
+
+#ifdef HAVE_OS2_H
+# define INCL_DOS
+# include <os2.h>
+#endif
+
+#define BACKEND_NAME sanei_debug
+#include "../include/sane/sanei_debug.h"
+
+/* If a frontend enables translations, the system toupper()
+ * call will use the LANG env var. We need to use ascii
+ * instead, so the debugging env var name matches the docs.
+ * This is a particular problem in Turkish, where 'i' does
+ * not capitalize to 'I' */
+char
+toupper_ascii (int c)
+{
+  if(c > 0x60 && c < 0x7b)
+    return c - 0x20;
+  return c;
+}
+
+void
+sanei_init_debug (const char * backend, int * var)
+{
+  char ch, buf[256] = "SANE_DEBUG_";
+  const char * val;
+  unsigned int i;
+
+  *var = 0;
+
+  for (i = 11; (ch = backend[i - 11]) != 0; ++i)
+    {
+      if (i >= sizeof (buf) - 1)
+        break;
+      buf[i] = toupper_ascii(ch);
+    }
+  buf[i] = '\0';
+
+  val = getenv (buf);
+
+  if (!val)
+    return;
+
+  *var = atoi (val);
+
+  DBG (0, "Setting debug level of %s to %d.\n", backend, *var);
+}
+
+void
+sanei_debug_msg
+  (int level, int max_level, const char *be, const char *fmt, va_list ap)
+{
+  char *msg;
+	
+  if (max_level >= level)
+    {
+#ifdef S_IFSOCK
+      if ( 1 == isfdtype(fileno(stderr), S_IFSOCK) )
+	{
+	  msg = (char *)malloc (sizeof(char) * (strlen(be) + strlen(fmt) + 4));
+	  if (msg == NULL)
+	    {
+	      syslog (LOG_DEBUG, "[sanei_debug] malloc() failed\n");
+	      vsyslog (LOG_DEBUG, fmt, ap);
+	    }
+	  else
+	    {
+	      sprintf (msg, "[%s] %s", be, fmt);
+              vsyslog(LOG_DEBUG, msg, ap);
+	      free (msg);
+	    }
+	}
+      else
+#endif
+	{
+	  fprintf (stderr, "[%s] ", be);
+          vfprintf (stderr, fmt, ap);
+	}
+	 
+    }
+}
+
+#ifdef NDEBUG
+void
+sanei_debug_ndebug (int level, const char *fmt, ...)
+{
+  /* this function is never called */
+}
+#endif