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Diffstat (limited to '')
| -rw-r--r-- | librpc/tests/test_ndr_string.c | 207 |
1 files changed, 207 insertions, 0 deletions
diff --git a/librpc/tests/test_ndr_string.c b/librpc/tests/test_ndr_string.c new file mode 100644 index 0000000..24ec93b --- /dev/null +++ b/librpc/tests/test_ndr_string.c @@ -0,0 +1,207 @@ +/* + * Tests for librpc ndr_string.c + * + * Copyright (C) Catalyst.NET Ltd 2019 + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + * + */ + +/* + * from cmocka.c: + * These headers or their equivalents should be included prior to + * including + * this header file. + * + * #include <stdarg.h> + * #include <stddef.h> + * #include <setjmp.h> + * + * This allows test applications to use custom definitions of C standard + * library functions and types. + * + */ +#include "replace.h" +#include <setjmp.h> +#include <cmocka.h> + +#include "librpc/ndr/ndr_string.c" + +/* + * Try and pull a null terminated string from a zero length buffer + * Should fail for both 1 byte, and 2 byte character strings. + */ +static void test_pull_string_zero_len_nul_term(void **state) +{ + struct ndr_pull ndr = {0}; + enum ndr_err_code err; + int flags = NDR_SCALARS; + uint8_t data[] = {0x0, 0x0}; + const char *s = NULL; + + ndr.flags = LIBNDR_FLAG_STR_UTF8 | LIBNDR_FLAG_STR_NULLTERM; + ndr.data = data; + ndr.data_size = 0; + err = ndr_pull_string(&ndr, flags, &s); + assert_int_equal(err, NDR_ERR_BUFSIZE); + assert_null(s); + assert_int_equal(0, ndr.offset); + + ndr.flags = LIBNDR_FLAG_STR_NULLTERM; + ndr.offset = 0; + err = ndr_pull_string(&ndr, flags, &s); + assert_int_equal(err, NDR_ERR_BUFSIZE); + assert_null(s); + assert_int_equal(0, ndr.offset); + +} + +/* + * Try and pull a null terminated string from a 1 byte buffer + * Should succeed for 1 byte character and + * fail for 2 byte character strings. + */ +static void test_pull_string_len_1_nul_term(void **state) +{ + struct ndr_pull ndr = {0}; + enum ndr_err_code err; + int flags = NDR_SCALARS; + const char *s = NULL; + uint8_t data[] = {0x0, 0x0}; + + ndr.flags = LIBNDR_FLAG_STR_UTF8 | LIBNDR_FLAG_STR_NULLTERM; + ndr.data = data; + ndr.data_size = 1; + err = ndr_pull_string(&ndr, flags, &s); + assert_int_equal(err, NDR_ERR_SUCCESS); + assert_non_null(s); + assert_int_equal(1, ndr.offset); + + ndr.offset = 0; + ndr.flags = LIBNDR_FLAG_STR_NULLTERM; + err = ndr_pull_string(&ndr, flags, &s); + assert_int_equal(err, NDR_ERR_BUFSIZE); + assert_int_equal(0, ndr.offset); +} + +/* + * Try and pull a null terminated string from a 2 byte buffer + * Should succeed for both 1 byte, and 2 byte character strings. + */ +static void test_pull_string_len_2_nul_term(void **state) +{ + struct ndr_pull ndr = {0}; + enum ndr_err_code err; + int flags = NDR_SCALARS; + const char *s; + uint8_t data[] = {0x0, 0x0}; + + ndr.flags = LIBNDR_FLAG_STR_UTF8 | LIBNDR_FLAG_STR_NULLTERM; + ndr.data = data; + ndr.data_size = 2; + err = ndr_pull_string(&ndr, flags, &s); + assert_int_equal(err, NDR_ERR_SUCCESS); + assert_non_null(s); + assert_int_equal(1, ndr.offset); + + ndr.offset = 0; + ndr.flags = LIBNDR_FLAG_STR_NULLTERM; + err = ndr_pull_string(&ndr, flags, &s); + assert_int_equal(err, NDR_ERR_SUCCESS); + assert_non_null(s); + assert_int_equal(2, ndr.offset); + + +} + +static void test_ndr_string_n_length(void **state) +{ + char test_str1[5] = "Test"; + char test_str2[5] = {0}; + char test_str3[32] = "This is a test too"; + uint8_t test_str_u16[64] = { + 0x5C, 0x00, 0x5C, 0x00, 0x4C, 0x00, 0x6F, 0x00, + 0x67, 0x00, 0x6F, 0x00, 0x6E, 0x00, 0x2D, 0x00, + 0x6D, 0x00, 0x75, 0x00, 0x63, 0x00, 0x5C, 0x00, + 0x6B, 0x00, 0x79, 0x00, 0x6F, 0x00, 0x63, 0x00, + 0x65, 0x00, 0x72, 0x00, 0x61, 0x00, 0x2D, 0x00, + 0x6D, 0x00, 0x75, 0x00, 0x63, 0x00, 0x2D, 0x00, + 0x6E, 0x00, 0x00, 0x00 }; + size_t len; + + len = ndr_string_n_length(test_str1, sizeof(test_str1), 1); + assert_int_equal(len, 5); + + len = ndr_string_n_length(test_str1, sizeof(test_str1) - 1, 1); + assert_int_equal(len, 4); + + len = ndr_string_n_length(test_str2, sizeof(test_str2), 1); + assert_int_equal(len, 1); + + len = ndr_string_n_length(test_str3, sizeof(test_str3), 1); + assert_int_equal(len, 19); + + len = ndr_string_n_length(test_str3, 0, 1); + assert_int_equal(len, 0); + + len = ndr_string_n_length(test_str_u16, 32, 2); + assert_int_equal(len, 26); +} + +static void test_pull_string_array(void **state) +{ + /* We try pulling long string arrays without long strings */ + const char **r = NULL; + struct ndr_pull ndr = {0}; + enum ndr_err_code err; + TALLOC_CTX *mem_ctx = talloc_new(NULL); + size_t len = 1 * 1024 * 1024; + uint8_t *data = talloc_array(mem_ctx, uint8_t, len); + size_t i; + + for (i = 0; i < len; i++) { + data[i] = (i & 1) ? '\0' : 'X'; + } + + ndr.current_mem_ctx = mem_ctx; + + ndr.flags = (LIBNDR_FLAG_REF_ALLOC | + LIBNDR_FLAG_REMAINING | + LIBNDR_FLAG_STR_NULLTERM | + LIBNDR_FLAG_STR_RAW8); + ndr.data = data; + ndr.data_size = len; + + err = ndr_pull_string_array(&ndr, NDR_SCALARS, &r); + assert_int_equal(err, NDR_ERR_SUCCESS); + assert_string_equal(r[0], "X"); + assert_string_equal(r[len / 3], "X"); + assert_string_equal(r[len / 2 - 1], "X"); + assert_ptr_equal(r[len / 2], NULL); + TALLOC_FREE(mem_ctx); +} + +int main(int argc, const char **argv) +{ + const struct CMUnitTest tests[] = { + cmocka_unit_test(test_pull_string_zero_len_nul_term), + cmocka_unit_test(test_pull_string_len_1_nul_term), + cmocka_unit_test(test_pull_string_len_2_nul_term), + cmocka_unit_test(test_ndr_string_n_length), + cmocka_unit_test(test_pull_string_array) + }; + + cmocka_set_message_output(CM_OUTPUT_SUBUNIT); + return cmocka_run_group_tests(tests, NULL, NULL); +} |