X-Git-Url: https://git.tcpdump.org/tcpdump/blobdiff_plain/bbc1cfa669a5f51ed26bae3784447076e3fbc80f..6d3b0e4599c5aa922bba42e53b038b51d9024a62:/machdep.c

diff --git a/machdep.c b/machdep.c
index 947e6be8..2578b73c 100644
--- a/machdep.c
+++ b/machdep.c
@@ -19,41 +19,30 @@
  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  */
 
-#ifndef lint
-static const char rcsid[] _U_ =
-    "@(#) $Header: /tcpdump/master/tcpdump/machdep.c,v 1.12 2003-11-16 09:36:10 guy Exp $ (LBL)";
-#endif
-
 #ifdef HAVE_CONFIG_H
-#include "config.h"
+#include <config.h>
 #endif
 
-/*
- * XXX - all we need, on platforms other than DEC OSF/1 (a/k/a Digital UNIX,
- * a/k/a Tru64 UNIX), is "size_t", which is a standard C type; what do we
- * need to do to get it defined?  This is clearly wrong, as we shouldn't
- * have to include UNIX or Windows system header files to get it.
- */
-#include <tcpdump-stdinc.h>
-
-#ifndef HAVE___ATTRIBUTE__
-#define __attribute__(x)
-#endif /* HAVE___ATTRIBUTE__ */
-
-#define _U_	__attribute__((unused))
+#include <stddef.h>
 
 #ifdef __osf__
+#include <stdio.h>
 #include <sys/sysinfo.h>
 #include <sys/proc.h>
-
-#if !defined(HAVE_SNPRINTF)
-int snprintf(char *, size_t, const char *, ...)
-     __attribute__((format(printf, 3, 4)));
-#endif /* !defined(HAVE_SNPRINTF) */
 #endif /* __osf__ */
 
+#include "varattrs.h"
 #include "machdep.h"
 
+/*
+ * On platforms where the CPU doesn't support unaligned loads, force
+ * unaligned accesses to abort with SIGBUS, rather than being fixed
+ * up (slowly) by the OS kernel; on those platforms, misaligned accesses
+ * are bugs, and we want tcpdump to crash so that the bugs are reported.
+ *
+ * The only OS on which this is necessary is DEC OSF/1^W^WDigital
+ * UNIX^W^WTru64 UNIX.
+ */
 int
 abort_on_misalignment(char *ebuf _U_, size_t ebufsiz _U_)
 {