Merge tag 'hardening-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees...

[linux-2.6-block.git] / lib / strcat_kunit.c

diff --git a/lib/strcat_kunit.c b/lib/strcat_kunit.c
deleted file mode 100644 (file)
index e21be95..0000000
--- a/lib/strcat_kunit.c
+++ /dev/null
@@ -1,104 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Kernel module for testing 'strcat' family of functions.
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <kunit/test.h>
-#include <linux/string.h>
-
-static volatile int unconst;
-
-static void strcat_test(struct kunit *test)
-{
-       char dest[8];
-
-       /* Destination is terminated. */
-       memset(dest, 0, sizeof(dest));
-       KUNIT_EXPECT_EQ(test, strlen(dest), 0);
-       /* Empty copy does nothing. */
-       KUNIT_EXPECT_TRUE(test, strcat(dest, "") == dest);
-       KUNIT_EXPECT_STREQ(test, dest, "");
-       /* 4 characters copied in, stops at %NUL. */
-       KUNIT_EXPECT_TRUE(test, strcat(dest, "four\000123") == dest);
-       KUNIT_EXPECT_STREQ(test, dest, "four");
-       KUNIT_EXPECT_EQ(test, dest[5], '\0');
-       /* 2 more characters copied in okay. */
-       KUNIT_EXPECT_TRUE(test, strcat(dest, "AB") == dest);
-       KUNIT_EXPECT_STREQ(test, dest, "fourAB");
-}
-
-static void strncat_test(struct kunit *test)
-{
-       char dest[8];
-
-       /* Destination is terminated. */
-       memset(dest, 0, sizeof(dest));
-       KUNIT_EXPECT_EQ(test, strlen(dest), 0);
-       /* Empty copy of size 0 does nothing. */
-       KUNIT_EXPECT_TRUE(test, strncat(dest, "", 0 + unconst) == dest);
-       KUNIT_EXPECT_STREQ(test, dest, "");
-       /* Empty copy of size 1 does nothing too. */
-       KUNIT_EXPECT_TRUE(test, strncat(dest, "", 1 + unconst) == dest);
-       KUNIT_EXPECT_STREQ(test, dest, "");
-       /* Copy of max 0 characters should do nothing. */
-       KUNIT_EXPECT_TRUE(test, strncat(dest, "asdf", 0 + unconst) == dest);
-       KUNIT_EXPECT_STREQ(test, dest, "");
-
-       /* 4 characters copied in, even if max is 8. */
-       KUNIT_EXPECT_TRUE(test, strncat(dest, "four\000123", 8 + unconst) == dest);
-       KUNIT_EXPECT_STREQ(test, dest, "four");
-       KUNIT_EXPECT_EQ(test, dest[5], '\0');
-       KUNIT_EXPECT_EQ(test, dest[6], '\0');
-       /* 2 characters copied in okay, 2 ignored. */
-       KUNIT_EXPECT_TRUE(test, strncat(dest, "ABCD", 2 + unconst) == dest);
-       KUNIT_EXPECT_STREQ(test, dest, "fourAB");
-}
-
-static void strlcat_test(struct kunit *test)
-{
-       char dest[8] = "";
-       int len = sizeof(dest) + unconst;
-
-       /* Destination is terminated. */
-       KUNIT_EXPECT_EQ(test, strlen(dest), 0);
-       /* Empty copy is size 0. */
-       KUNIT_EXPECT_EQ(test, strlcat(dest, "", len), 0);
-       KUNIT_EXPECT_STREQ(test, dest, "");
-       /* Size 1 should keep buffer terminated, report size of source only. */
-       KUNIT_EXPECT_EQ(test, strlcat(dest, "four", 1 + unconst), 4);
-       KUNIT_EXPECT_STREQ(test, dest, "");
-
-       /* 4 characters copied in. */
-       KUNIT_EXPECT_EQ(test, strlcat(dest, "four", len), 4);
-       KUNIT_EXPECT_STREQ(test, dest, "four");
-       /* 2 characters copied in okay, gets to 6 total. */
-       KUNIT_EXPECT_EQ(test, strlcat(dest, "AB", len), 6);
-       KUNIT_EXPECT_STREQ(test, dest, "fourAB");
-       /* 2 characters ignored if max size (7) reached. */
-       KUNIT_EXPECT_EQ(test, strlcat(dest, "CD", 7 + unconst), 8);
-       KUNIT_EXPECT_STREQ(test, dest, "fourAB");
-       /* 1 of 2 characters skipped, now at true max size. */
-       KUNIT_EXPECT_EQ(test, strlcat(dest, "EFG", len), 9);
-       KUNIT_EXPECT_STREQ(test, dest, "fourABE");
-       /* Everything else ignored, now at full size. */
-       KUNIT_EXPECT_EQ(test, strlcat(dest, "1234", len), 11);
-       KUNIT_EXPECT_STREQ(test, dest, "fourABE");
-}
-
-static struct kunit_case strcat_test_cases[] = {
-       KUNIT_CASE(strcat_test),
-       KUNIT_CASE(strncat_test),
-       KUNIT_CASE(strlcat_test),
-       {}
-};
-
-static struct kunit_suite strcat_test_suite = {
-       .name = "strcat",
-       .test_cases = strcat_test_cases,
-};
-
-kunit_test_suite(strcat_test_suite);
-
-MODULE_LICENSE("GPL");