1 files changed, 72 insertions, 0 deletions
diff --git a/sanity.c b/sanity.c
new file mode 100644
index 00000000..bd0b892a
--- /dev/null
+++ b/sanity.c
@@ -0,0 +1,72 @@
+/** \file sanity.c
+	Functions for performing sanity checks on the program state
+*/
+#include <stdlib.h>
+#include <wchar.h>
+#include <stdio.h>
+#include <errno.h>
+#include <termios.h>
+#include <unistd.h>
+#include <signal.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <dirent.h>
+
+
+#include "config.h"
+#include "util.h"
+#include "common.h"
+#include "sanity.h"
+#include "proc.h"
+#include "history.h"
+#include "reader.h"
+#include "kill.h"
+#include "wutil.h"
+
+/**
+   Status from earlier sanity checks
+*/
+static int insane;
+
+void sanity_lose()
+{
+	debug( 0, L"Errors detected, shutting down" );
+	insane = 1;
+}
+
+int sanity_check()
+{
+	if( !insane )
+		if( is_interactive )
+			history_sanity_check();
+	if( !insane )
+		reader_sanity_check();
+	if( !insane )
+		kill_sanity_check();
+	if( !insane )
+		proc_sanity_check();
+	
+	return insane;
+}
+
+void validate_pointer( const void *ptr, const wchar_t *err, int null_ok )
+{
+	
+	/* 
+	   Test if the pointer data crosses a segment boundary. 
+	*/
+	
+	if( (0x00000003 & (int)ptr) != 0 )
+	{
+		debug( 0, L"The pointer '\%ls\' is invalid", err );
+		sanity_lose();		
+	}
+	
+	if((!null_ok) && (ptr==0))
+	{
+		debug( 0, L"The pointer '\%ls\' is null", err );
+		sanity_lose();		
+	}
+}
+
+