From a2d5f9a8098343d2f2209a56c8858479ba33e9c9 Mon Sep 17 00:00:00 2001
From: Andrew Tridgell <tridge@samba.org>
Date: Fri, 12 Apr 2002 03:42:44 +0000
Subject: [PATCH] better mangling test. We now test that we can create by long
 name and delete by short name, and that we can create by short name and
 delete by long name

our old mangling code fails this test.

also tweaked the random filename generation to produce more likely
collisions
(This used to be commit 65609c52960c2b5938150a2fdb5290541f4e0225)
---
 source3/torture/mangle_test.c | 35 +++++++++++++++++++++++++++++++++--
 1 file changed, 33 insertions(+), 2 deletions(-)

diff --git a/source3/torture/mangle_test.c b/source3/torture/mangle_test.c
index 9024925beb..7f05b953c5 100644
--- a/source3/torture/mangle_test.c
+++ b/source3/torture/mangle_test.c
@@ -22,7 +22,7 @@
 
 static TDB_CONTEXT *tdb;
 
-#define NAME_LENGTH 30
+#define NAME_LENGTH 20
 
 static unsigned total, collisions;
 
@@ -61,6 +61,24 @@ static BOOL test_one(struct cli_state *cli, const char *name)
 		return False;
 	}
 
+	/* recreate by short name */
+	fnum = cli_open(cli, name2, O_RDWR|O_CREAT|O_EXCL, DENY_NONE);
+	if (fnum == -1) {
+		printf("open2 of %s failed (%s)\n", name2, cli_errstr(cli));
+		return False;
+	}
+	if (!cli_close(cli, fnum)) {
+		printf("close of %s failed (%s)\n", name, cli_errstr(cli));
+		return False;
+	}
+
+	/* and unlink by long name */
+	if (!cli_unlink(cli, name)) {
+		printf("unlink2 of %s  (%s) failed (%s)\n", 
+		       name, name2, cli_errstr(cli));
+		return False;
+	}
+
 	/* see if the short name is already in the tdb */
 	data = tdb_fetch_by_string(tdb, shortname);
 	if (data.dptr) {
@@ -83,7 +101,7 @@ static BOOL test_one(struct cli_state *cli, const char *name)
 
 static void gen_name(char *name)
 {
-	const char *chars = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz._-$~";
+	const char *chars = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz._-$~...";
 	unsigned max_idx = strlen(chars);
 	unsigned len;
 	int i;
@@ -103,6 +121,19 @@ static void gen_name(char *name)
 	if (strcmp(p, ".") == 0 || strcmp(p, "..") == 0) {
 		p[0] = '_';
 	}
+
+	/* have a high probability of a common lead char */
+	if (random() % 2 == 0) {
+		p[0] = 'A';
+	}
+
+	/* and a high probability of a good extension length */
+	if (random() % 2 == 0) {
+		char *s = strrchr(p, '.');
+		if (s) {
+			s[4] = 0;
+		}
+	}
 }
 
 
-- 
2.34.1