1 files changed, 45 insertions, 0 deletions
diff --git a/lib/libmalloc/botch.c b/lib/libmalloc/botch.c
new file mode 100644
index 000000000000..93b28b4938c8
--- /dev/null
+++ b/lib/libmalloc/botch.c
@@ -0,0 +1,45 @@
+#include "defs.h"
+#include "globals.h"
+
+int
+__nothing()
+{
+	return 0;
+}
+
+/*
+ * Simple botch routine - writes directly to stderr.  CAREFUL -- do not use
+ * printf because of the vile hack we use to redefine fputs with write for
+ * normal systems (i.e not super-pure ANSI)!
+ */
+int
+__m_botch(s, filename, linenumber)
+const char *s;
+const char *filename;
+int linenumber;
+{
+	static char linebuf[32];	/* Enough for a BIG linenumber! */
+	static int notagain = 0;
+
+	if (notagain == 0) {
+		/* Try to flush the trace file and unbuffer stderr */
+		(void) fflush(_malloc_statsfile);
+		(void) setvbuf(stderr, (char *) 0, _IONBF, 0);
+		(void) sprintf(linebuf, "%d: ", linenumber);
+		(void) fputs("memory corruption error detected, file ",
+			     stderr);
+		(void) fputs(filename, stderr);
+		(void) fputs(", line ", stderr);
+		(void) fputs(linebuf, stderr);
+		(void) fputs(s, stderr);
+		(void) fputs("\n", stderr);
+		/*
+		 * In case stderr is buffered and was written to before we
+		 * tried to unbuffer it
+		 */
+		(void) fflush(stderr);
+		notagain++;	/* just in case abort() tries to cleanup */
+		abort();
+	}
+	return 0;	/* SHOULDNTHAPPEN */
+}