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diff -up cups-1.6.1/notifier/dbus.c.dbus-utf8 cups-1.6.1/notifier/dbus.c
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--- cups-1.6.1/notifier/dbus.c.dbus-utf8	2012-01-20 19:00:32.000000000 +0000
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+++ cups-1.6.1/notifier/dbus.c	2012-10-31 11:04:47.686973616 +0000
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@@ -31,6 +31,9 @@
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 #include <sys/stat.h>
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 #include <sys/types.h>
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 #include <unistd.h>
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+#include <assert.h>
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+#include <locale.h>
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+#include <wchar.h>
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 #ifdef HAVE_DBUS
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 #  include <dbus/dbus.h>
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@@ -157,10 +160,82 @@ enum
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  * Local functions...
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  */
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-static int	acquire_lock(int *fd, char *lockfile, size_t locksize);
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+static int		acquire_lock(int *fd, char *lockfile, size_t locksize);
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+static const char	*validate_utf8(const char *str);
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 /*
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+ * 'validate_utf8()' - Convert to valid UTF-8
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+ */
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+
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+static const char *
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+validate_utf8 (const char *str)
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+{
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+  static char *buffer = NULL;
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+  static size_t buflen = 0;
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+  char *p;
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+  size_t str_len;
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+  unsigned int i;
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+  mbstate_t instate, outstate;
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+
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+  if (str == NULL)
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+  {
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+    free (buffer);
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+    return (NULL);
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+  }
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+
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+  /* Is it already valid? */
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+  if (mbstowcs (NULL, str, 0) != (size_t) -1)
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+    return str;
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+
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+  /* Make sure our buffer is at least as large as the input string */
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+  str_len = strlen (str);
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+  if (str_len > buflen)
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+  {
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+    if (buffer == NULL)
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+      /* Set encoding type to UTF-8 the first time we need to */
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+      setlocale (LC_CTYPE, "en_US.UTF-8");
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+
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+    buflen = str_len + 1;
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+    buffer = realloc (buffer, buflen);
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+  }
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+
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+  memset (&instate, '\0', sizeof (mbstate_t));
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+  memset (&outstate, '\0', sizeof (mbstate_t));
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+  p = buffer;
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+  i = 0;
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+  while (i < str_len)
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+  {
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+    wchar_t wc;
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+    size_t used, written;
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+    mbstate_t orig_instate = instate;
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+    used = mbrtowc (&wc, str + i, str_len - i, &instate);
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+    switch (used)
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+    {
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+    case (size_t) -2:
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+    case (size_t) -1:
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+      wc = L'?'; /* so replacement is never longer than original char */
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+      instate = orig_instate;
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+      /* fallthru */
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+    case 0:
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+      used = 1;
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+    }
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+
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+    written = wcrtomb (p, wc, &outstate);
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+    if (written != -1)
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+    {
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+      p += written;
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+      assert (p - buffer < buflen);
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+    }
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+
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+    i += used;
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+  }
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+
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+  *p = '\0';
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+  return buffer;
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+}
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+
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+/*
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  * 'main()' - Read events and send DBUS notifications.
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  */
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@@ -366,7 +441,7 @@ main(int  argc,				/* I - Number of comm
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     attr = ippFindAttribute(msg, "notify-text", IPP_TAG_TEXT);
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     if (attr)
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     {
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-      const char *val = ippGetString(attr, 0, NULL);
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+      const char *val = validate_utf8 (ippGetString(attr, 0, NULL));
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       if (!dbus_message_iter_append_string(&iter, &val))
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         goto bail;
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     }