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diff --git a/unix/uuenview.c b/unix/uuenview.c
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index 7acfd3b..726a2a6 100644
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--- a/unix/uuenview.c
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+++ b/unix/uuenview.c
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@@ -310,7 +310,7 @@ SendMkCommand (char **rcptlist, char *towhom, char *subject, int isemail)
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   }
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   if ((*rcptlist = (char *) malloc (strlen (towhom) + 16)) == NULL) {
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-    fprintf (stderr, "error: Out of memory allocating %d bytes\n",
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+    fprintf (stderr, "error: Out of memory allocating %zd bytes\n",
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 	     strlen (towhom)+16);
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     _FP_free (command);
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     return NULL;
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@@ -483,7 +483,7 @@ AttachFiles (char *towhom, char *subject,
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       if (_FP_stristr (input, "multipart") != NULL) {
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 	/* it is already a multipart posting. grab the boundary */
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 	if ((ptr = _FP_stristr (input, "boundary=")) != NULL) {
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-	  fprintf(thepipe,  input);
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+	  fprintf(thepipe,  "%s", input);
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 	  strcpy (boundary, ParseValue (ptr));
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 	  hadmulti = 1;
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 	}