Module Name:    src
Committed By:   christos
Date:           Fri Aug 28 14:26:50 UTC 2009

Modified Files:
        src/usr.bin/mail: mime_decode.c mime_detach.c

Log Message:
Don't barf on malformed mime messages (missing mime version). From Anon Ymous


To generate a diff of this commit:
cvs rdiff -u -r1.15 -r1.16 src/usr.bin/mail/mime_decode.c
cvs rdiff -u -r1.4 -r1.5 src/usr.bin/mail/mime_detach.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

Modified files:

Index: src/usr.bin/mail/mime_decode.c
diff -u src/usr.bin/mail/mime_decode.c:1.15 src/usr.bin/mail/mime_decode.c:1.16
--- src/usr.bin/mail/mime_decode.c:1.15	Fri Apr 10 09:08:25 2009
+++ src/usr.bin/mail/mime_decode.c	Fri Aug 28 10:26:50 2009
@@ -1,4 +1,4 @@
-/*	$NetBSD: mime_decode.c,v 1.15 2009/04/10 13:08:25 christos Exp $	*/
+/*	$NetBSD: mime_decode.c,v 1.16 2009/08/28 14:26:50 christos Exp $	*/
 
 /*-
  * Copyright (c) 2006 The NetBSD Foundation, Inc.
@@ -34,7 +34,7 @@
 
 #include <sys/cdefs.h>
 #ifndef __lint__
-__RCSID("$NetBSD: mime_decode.c,v 1.15 2009/04/10 13:08:25 christos Exp $");
+__RCSID("$NetBSD: mime_decode.c,v 1.16 2009/08/28 14:26:50 christos Exp $");
 #endif /* not __lint__ */
 
 #include <assert.h>
@@ -266,8 +266,15 @@
 		filename = savestr(filename);	/* save it! */
 	}
 	mip->mi_filename = filename;
-}
 
+	/*
+	 * XXX: If we have a "Content-Type" in the header, then assume
+	 * we also have a "MIME-Version: 1.0".  This fixes some broken
+	 * MIME headers that I have seen occasionally.
+	 */
+	if (mip->mi_version == NULL && mip->mi_type != NULL)
+		mip->mi_version = MIME_VERSION;
+}
 
 static struct message *
 salloc_message(int flag, long block, short offset)

Index: src/usr.bin/mail/mime_detach.c
diff -u src/usr.bin/mail/mime_detach.c:1.4 src/usr.bin/mail/mime_detach.c:1.5
--- src/usr.bin/mail/mime_detach.c:1.4	Fri Apr 10 09:08:25 2009
+++ src/usr.bin/mail/mime_detach.c	Fri Aug 28 10:26:50 2009
@@ -1,4 +1,4 @@
-/*	$NetBSD: mime_detach.c,v 1.4 2009/04/10 13:08:25 christos Exp $	*/
+/*	$NetBSD: mime_detach.c,v 1.5 2009/08/28 14:26:50 christos Exp $	*/
 
 /*-
  * Copyright (c) 2006 The NetBSD Foundation, Inc.
@@ -34,7 +34,7 @@
 
 #include <sys/cdefs.h>
 #ifndef __lint__
-__RCSID("$NetBSD: mime_detach.c,v 1.4 2009/04/10 13:08:25 christos Exp $");
+__RCSID("$NetBSD: mime_detach.c,v 1.5 2009/08/28 14:26:50 christos Exp $");
 #endif /* not __lint__ */
 
 #include <assert.h>
@@ -178,26 +178,36 @@
 {
 	char *pathname;
 	char *prompt;
+	const char *partstr;
+	const char *subtype;
+
+	/*
+	 * XXX: If partstr == NULL, we probably shouldn't be detaching
+	 * anything, but let's be liberal and try to do something with
+	 * the block anyway.
+	 */
+	partstr = mip->mi_partstr && mip->mi_partstr[0] ? mip->mi_partstr : "0";
+	subtype = mip->mi_subtype ? mip->mi_subtype : "unknown";
 
 	/*
 	 * Get the suggested target pathname.
 	 */
 	if (mip->mi_filename != NULL)
-		(void)sasprintf(&pathname, "%s/%s", mip->mi_detachdir, mip->mi_filename);
+		(void)sasprintf(&pathname, "%s/%s", mip->mi_detachdir,
+		    mip->mi_filename);
 	else {
 		if (mip->mi_detachall == 0)
 			return NULL;
 
 		(void)sasprintf(&pathname, "%s/msg-%s.part-%s.%s",
 		    mip->mi_detachdir, mip->mi_msgstr,
-		    mip->mi_partstr[0] ? mip->mi_partstr : "0",
-		    mip->mi_subtype ? mip->mi_subtype : "unknown");
+		    partstr, subtype);
 	}
 
 	/*
 	 * Make up the prompt
 	 */
-	(void)sasprintf(&prompt, "%-7s filename: ", mip->mi_partstr);
+	(void)sasprintf(&prompt, "%-7s filename: ", partstr);
 
 	/*
 	 * The main loop.
@@ -218,7 +228,7 @@
 				return NULL;
 			continue;
 		}
-		switch (detach_open_core(fname, mip->mi_partstr)) {
+		switch (detach_open_core(fname, partstr)) {
 		case DETACH_OPEN_OK:
 			return fname;
 		case DETACH_NEXT:

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