401 lines
12 KiB
C
401 lines
12 KiB
C
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#if defined(HAVE_CONFIG_H)
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#include "config_ac.h"
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#endif
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#include "os_calls.h"
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#include "string_calls.h"
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#include "base64.h"
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#include "test_common.h"
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/*
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* These are the example test strings in RFC4648(10)
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*/
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static const char *rfc4648_ex1_text = "";
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static const char *rfc4648_ex1_b64 = "";
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static const char *rfc4648_ex2_text = "f";
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static const char *rfc4648_ex2_b64 = "Zg==";
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static const char *rfc4648_ex3_text = "fo";
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static const char *rfc4648_ex3_b64 = "Zm8=";
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static const char *rfc4648_ex4_text = "foo";
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static const char *rfc4648_ex4_b64 = "Zm9v";
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static const char *rfc4648_ex5_text = "foob";
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static const char *rfc4648_ex5_b64 = "Zm9vYg==";
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static const char *rfc4648_ex6_text = "fooba";
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static const char *rfc4648_ex6_b64 = "Zm9vYmE=";
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static const char *rfc4648_ex7_text = "foobar";
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static const char *rfc4648_ex7_b64 = "Zm9vYmFy";
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/* Every single valid base64 character, except padding */
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static const char *all_b64 =
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"ABCDEFGHIJKL"
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"MNOPQRSTUVWX"
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"YZabcdefghij"
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"klmnopqrstuv"
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"wxyz01234567"
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"89+/";
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/* What we should get as binary if we decode this */
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static const char all_b64_decoded[] =
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{
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'\x00', '\x10', '\x83', '\x10', '\x51', '\x87', '\x20', '\x92', '\x8b',
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'\x30', '\xd3', '\x8f', '\x41', '\x14', '\x93', '\x51', '\x55', '\x97',
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'\x61', '\x96', '\x9b', '\x71', '\xd7', '\x9f', '\x82', '\x18', '\xa3',
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'\x92', '\x59', '\xa7', '\xa2', '\x9a', '\xab', '\xb2', '\xdb', '\xaf',
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'\xc3', '\x1c', '\xb3', '\xd3', '\x5d', '\xb7', '\xe3', '\x9e', '\xbb',
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'\xf3', '\xdf', '\xbf'
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};
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static void
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test_rfc4648_to_b64(const char *plaintext, size_t len, const char *b64)
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{
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char buff[256];
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size_t result;
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result = base64_encode(plaintext, len, buff, sizeof(buff));
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ck_assert_int_eq(result, len);
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ck_assert_str_eq(buff, b64);
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}
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/* Text-only encoder wrapper */
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static void
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test_rfc4648_to_b64_text(const char *plaintext, const char *b64)
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{
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test_rfc4648_to_b64(plaintext, g_strlen(plaintext), b64);
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}
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/* Text-only decoder wrapper for valid base64 */
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static void
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test_rfc4648_from_b64_text(const char *b64, const char *text)
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{
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char buff[256];
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size_t actual_len;
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int result;
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result = base64_decode(b64, buff, sizeof(buff), &actual_len);
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ck_assert_int_eq(result, 0);
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ck_assert_int_lt(actual_len, sizeof(buff));
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buff[actual_len] = '\0';
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ck_assert_str_eq(buff, text);
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}
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/******************************************************************************/
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START_TEST(test_b64_rfc4648_ex1_to)
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{
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test_rfc4648_to_b64_text(rfc4648_ex1_text, rfc4648_ex1_b64);
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}
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END_TEST
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/******************************************************************************/
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START_TEST(test_b64_rfc4648_ex1_from)
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{
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test_rfc4648_from_b64_text(rfc4648_ex1_b64, rfc4648_ex1_text);
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}
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END_TEST
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/******************************************************************************/
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START_TEST(test_b64_rfc4648_ex2_to)
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{
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test_rfc4648_to_b64_text(rfc4648_ex2_text, rfc4648_ex2_b64);
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}
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END_TEST
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/******************************************************************************/
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START_TEST(test_b64_rfc4648_ex2_from)
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{
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test_rfc4648_from_b64_text(rfc4648_ex2_b64, rfc4648_ex2_text);
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}
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END_TEST
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/******************************************************************************/
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START_TEST(test_b64_rfc4648_ex3_to)
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{
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test_rfc4648_to_b64_text(rfc4648_ex3_text, rfc4648_ex3_b64);
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}
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END_TEST
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/******************************************************************************/
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START_TEST(test_b64_rfc4648_ex3_from)
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{
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test_rfc4648_from_b64_text(rfc4648_ex3_b64, rfc4648_ex3_text);
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}
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END_TEST
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/******************************************************************************/
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START_TEST(test_b64_rfc4648_ex4_to)
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{
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test_rfc4648_to_b64_text(rfc4648_ex4_text, rfc4648_ex4_b64);
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}
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END_TEST
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/******************************************************************************/
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START_TEST(test_b64_rfc4648_ex4_from)
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{
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test_rfc4648_from_b64_text(rfc4648_ex4_b64, rfc4648_ex4_text);
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}
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END_TEST
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/******************************************************************************/
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START_TEST(test_b64_rfc4648_ex5_to)
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{
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test_rfc4648_to_b64_text(rfc4648_ex5_text, rfc4648_ex5_b64);
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}
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END_TEST
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/******************************************************************************/
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START_TEST(test_b64_rfc4648_ex5_from)
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{
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test_rfc4648_from_b64_text(rfc4648_ex5_b64, rfc4648_ex5_text);
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}
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END_TEST
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/******************************************************************************/
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START_TEST(test_b64_rfc4648_ex6_to)
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{
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test_rfc4648_to_b64_text(rfc4648_ex6_text, rfc4648_ex6_b64);
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}
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END_TEST
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/******************************************************************************/
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START_TEST(test_b64_rfc4648_ex6_from)
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{
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test_rfc4648_from_b64_text(rfc4648_ex6_b64, rfc4648_ex6_text);
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}
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END_TEST
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/******************************************************************************/
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START_TEST(test_b64_rfc4648_ex7_to)
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{
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test_rfc4648_to_b64_text(rfc4648_ex7_text, rfc4648_ex7_b64);
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}
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END_TEST
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/******************************************************************************/
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START_TEST(test_b64_rfc4648_ex7_from)
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{
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test_rfc4648_from_b64_text(rfc4648_ex7_b64, rfc4648_ex7_text);
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}
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END_TEST
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/******************************************************************************/
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START_TEST(test_b64_all_valid_from)
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{
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char buff[256];
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size_t actual_len;
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int result;
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char *str_result;
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char *str_expected;
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result = base64_decode(all_b64, buff, sizeof(buff), &actual_len);
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ck_assert_int_eq(result, 0);
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ck_assert_int_eq(actual_len, sizeof(all_b64_decoded));
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str_result = bin_to_hex(buff, actual_len);
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str_expected = bin_to_hex(all_b64_decoded, sizeof(all_b64_decoded));
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ck_assert_str_eq(str_result, str_expected);
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free(str_result);
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free(str_expected);
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}
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END_TEST
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/******************************************************************************/
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START_TEST(test_b64_all_valid_to)
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{
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char buff[256];
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size_t result;
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result = base64_encode(all_b64_decoded, sizeof(all_b64_decoded),
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buff, sizeof(buff));
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ck_assert_int_eq(result, sizeof(all_b64_decoded));
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ck_assert_str_eq(buff, all_b64);
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}
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END_TEST
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/******************************************************************************/
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START_TEST(test_b64_all_invalid)
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{
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char buff[256];
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size_t actual_len;
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char valid[256] = {0};
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char encoded[5] = { "T0sh" }; /* Decodes to 'OK!' */
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int result;
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/* Make a note of all the valid b64 characters */
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unsigned int i = 0;
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unsigned char c;
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while ((c = all_b64[i]) != '\0')
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{
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valid[c] = 1;
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++i;
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}
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/* Check the decoder's working on a simple string...*/
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result = base64_decode(encoded, buff, sizeof(buff), &actual_len);
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ck_assert_int_eq(result, 0);
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ck_assert_int_eq(actual_len, 3);
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buff[actual_len] = '\0';
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ck_assert_str_eq(buff, "OK!");
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/* Now replace the 1st character with all invalid characters in turn,
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* and check they're rejected */
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for (i = 0 ; i < 256; ++i)
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{
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if (i != '\0' && !valid[i]) /* Don't try the string terminator char! */
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{
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encoded[0] = i;
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result = base64_decode(encoded, buff, sizeof(buff), &actual_len);
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if (result == 0)
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{
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ck_abort_msg("Character 0x%02x was not rejected", i);
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}
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}
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}
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}
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END_TEST
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/******************************************************************************/
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START_TEST(test_b64_small_buffer_encode)
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{
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char buff[10 * 4 + 1]; /* Enough space for 10 quanta */
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size_t result;
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result = base64_encode(all_b64_decoded, sizeof(all_b64_decoded),
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buff, sizeof(buff));
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/* Should have read 10 lots of 24 bits from the input */
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ck_assert_int_eq(result, 10 * 3);
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ck_assert_str_eq(buff, "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmn");
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}
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END_TEST
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/******************************************************************************/
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START_TEST(test_b64_small_buffer_decode)
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{
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char buff[10]; /* Enough space for 10 chars */
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size_t actual_len;
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int result;
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char *str_result;
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char *str_expected;
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result = base64_decode(all_b64, buff, sizeof(buff), &actual_len);
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ck_assert_int_eq(result, 0);
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ck_assert_int_eq(actual_len, sizeof(all_b64_decoded));
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str_result = bin_to_hex(buff, sizeof(buff));
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str_expected = bin_to_hex(all_b64_decoded, sizeof(buff));
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ck_assert_str_eq(str_result, str_expected);
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free(str_result);
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free(str_expected);
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}
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END_TEST
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/******************************************************************************/
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START_TEST(test_b64_add_pad_one)
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{
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/* Check that a missing trailing '=' is added when decoding */
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test_rfc4648_from_b64_text("Zm8", "fo"); /* RFC4648 example 3 */
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}
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END_TEST
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/******************************************************************************/
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START_TEST(test_b64_add_pad_two)
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{
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/* Check that two missing trailing '=' chars are added when decoding */
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test_rfc4648_from_b64_text("Zg", "f"); /* RFC4648 example 2 */
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}
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END_TEST
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/******************************************************************************/
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START_TEST(test_b64_bad_pad)
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{
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char buff[16];
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size_t actual_len;
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/* Check all bad quanta with padding chars */
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static const char *bad_pad[] =
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{
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"=AAA",
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"A=AA",
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"AA=A",
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"==AA",
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"=A=A",
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"=AA=",
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"A==A",
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"A=A=",
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"===A",
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"A===",
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NULL
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};
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const char **p;
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for (p = bad_pad ; *p != NULL ; ++p)
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{
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int result = base64_decode(*p, buff, sizeof(buff), &actual_len);
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if (result == 0)
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{
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ck_abort_msg("Padding '%s' was not rejected", *p);
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}
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}
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}
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END_TEST
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/******************************************************************************/
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START_TEST(test_b64_concat_pad)
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{
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const char *src =
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"VGVzdA==" /* Test */
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"IA==" /* <space> */
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"Y29uY2F0ZW5hdGVk" /* concatenated */
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"IA==" /* <space> */
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"cGFkZGluZw=="; /*padding */
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const char *expected = "Test concatenated padding";
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char buff[64];
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size_t actual_len;
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int result;
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result = base64_decode(src, buff, sizeof(buff), &actual_len);
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ck_assert_int_eq(result, 0);
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ck_assert_int_eq(actual_len, g_strlen(expected));
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buff[actual_len] = '\0';
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ck_assert_str_eq(buff, expected);
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}
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END_TEST
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/******************************************************************************/
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Suite *
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make_suite_test_base64(void)
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{
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Suite *s;
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TCase *tc_b64;
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s = suite_create("base64");
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tc_b64 = tcase_create("base64");
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suite_add_tcase(s, tc_b64);
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tcase_add_test(tc_b64, test_b64_rfc4648_ex1_to);
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tcase_add_test(tc_b64, test_b64_rfc4648_ex1_from);
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tcase_add_test(tc_b64, test_b64_rfc4648_ex2_to);
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tcase_add_test(tc_b64, test_b64_rfc4648_ex2_from);
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tcase_add_test(tc_b64, test_b64_rfc4648_ex3_to);
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tcase_add_test(tc_b64, test_b64_rfc4648_ex3_from);
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tcase_add_test(tc_b64, test_b64_rfc4648_ex4_to);
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tcase_add_test(tc_b64, test_b64_rfc4648_ex4_from);
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tcase_add_test(tc_b64, test_b64_rfc4648_ex5_to);
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tcase_add_test(tc_b64, test_b64_rfc4648_ex5_from);
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tcase_add_test(tc_b64, test_b64_rfc4648_ex6_to);
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tcase_add_test(tc_b64, test_b64_rfc4648_ex6_from);
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tcase_add_test(tc_b64, test_b64_rfc4648_ex7_to);
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tcase_add_test(tc_b64, test_b64_rfc4648_ex7_from);
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tcase_add_test(tc_b64, test_b64_all_valid_from);
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tcase_add_test(tc_b64, test_b64_all_valid_to);
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tcase_add_test(tc_b64, test_b64_all_invalid);
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tcase_add_test(tc_b64, test_b64_small_buffer_encode);
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tcase_add_test(tc_b64, test_b64_small_buffer_decode);
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tcase_add_test(tc_b64, test_b64_add_pad_one);
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tcase_add_test(tc_b64, test_b64_add_pad_two);
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tcase_add_test(tc_b64, test_b64_bad_pad);
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tcase_add_test(tc_b64, test_b64_concat_pad);
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return s;
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}
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