2  * Copyright 2024-2025 The OpenSSL Project Authors. All Rights Reserved.
31 #define sEOF "-EOF"             /* '-' as in PEM and MIME boundaries */
34 #define EOF_RETURN (-1729)      /* Distinct from -1, etc., internal results */
43 #define NVARPAD (NVAR * NPAD - NPAD + 1)
78 /* Encode and append one 6-bit slice, randomly prepending some whitespace */
89  * Encode an octet string in base64, approximately `llen` bytes per line,
108     /* Encode full 3-octet groups */  in encode()
118         buflen -= 3;  in encode()
140     while (trunc-- > 0)  in encode()
144     /* Terminate last line */  in encode()
163         return -1;  in genb64()
171         return -1;  in genb64()
176     *out = bptr->data;  in genb64()
177     outlen = bptr->length;  in genb64()
178     bptr->data = NULL;  in genb64()
198      * Pre-encoded data always encodes NUL octets.  If all we care about is the  in test_bio_base64_run()
201     if (t->encoded != NULL)  in test_bio_base64_run()
202         raw = OPENSSL_zalloc(t->bytes);  in test_bio_base64_run()
204         raw = genbytes(t->bytes);  in test_bio_base64_run()
206     if (raw == NULL && t->bytes > 0) {  in test_bio_base64_run()
208         return -1;  in test_bio_base64_run()
211     out_len = t->bytes + 1024;  in test_bio_base64_run()
216         return -1;  in test_bio_base64_run()
219     elen = genb64(t->prefix, t->suffix, raw, t->bytes, t->trunc, t->encoded,  in test_bio_base64_run()
226         return -1;  in test_bio_base64_run()
228     if (t->retry)  in test_bio_base64_run()
239     if (t->retry)  in test_bio_base64_run()
245     if (t->no_nl)  in test_bio_base64_run()
253         BIO_write(bio, encoded + n1, elen - n1);  in test_bio_base64_run()
255             n2 = BIO_read(b64, out + n, out_len - n);  in test_bio_base64_run()
263     /* Turn retry-related negative results to normal (0) EOF */  in test_bio_base64_run()
268     if (t->retry)  in test_bio_base64_run()
273         ret = BIO_read(b64, out + n, out_len - n);  in test_bio_base64_run()
277         ret = -1;  in test_bio_base64_run()
283      * - truncated groups,  in test_bio_base64_run()
284      * - non-base64 suffixes (other than soft EOF) for non-empty or oneline  in test_bio_base64_run()
286      * - non-base64 prefixes in NO_NL mode  in test_bio_base64_run()
290     if (t->trunc > 0  in test_bio_base64_run()
291         || ((t->bytes > 0 || t->no_nl) && *t->suffix && *t->suffix != '-')  in test_bio_base64_run()
292         || (t->no_nl && *t->prefix)) {  in test_bio_base64_run()
293         if ((ret = ret < 0 ? 0 : -1) != 0)  in test_bio_base64_run()
294             TEST_error("Final read result was non-negative");  in test_bio_base64_run()
296              || n != (int) t->bytes  in test_bio_base64_run()
299         ret = -1;  in test_bio_base64_run()
318             int extra = t->no_nl ? 64 : 0;  in generic_case()
321              * Use a longer line for NO_NL tests, in particular, eventually  in generic_case()
329                 if (*t->prefix)  in generic_case()
330                     fprintf(stderr, ", prefix='%s'", t->prefix);  in generic_case()
331                 if (t->encoded)  in generic_case()
332                     fprintf(stderr, ", data='%s'", t->encoded);  in generic_case()
334                     fprintf(stderr, ", datalen=%u", t->bytes);  in generic_case()
335                 if (t->trunc)  in generic_case()
336                     fprintf(stderr, ", trunc=%d", t->trunc);  in generic_case()
337                 if (*t->suffix)  in generic_case()
338                     fprintf(stderr, ", suffix='%s'", t->suffix);  in generic_case()
341                 if (t->retry)  in generic_case()
343                 if (t->no_nl)  in generic_case()
349             if (t->encoded)  in generic_case()
356         if (*llen > t->bytes + (t->bytes >> 1))  in generic_case()
365     return i - *q * m;  in quotrem()
394         t.trunc = padcase - 2;  in test_bio_base64_generated()
397     if (padcase != 0 && (*t.suffix && *t.suffix != '-')) {  in test_bio_base64_generated()
418     /* 9 bytes of skipped non-base64 input + newline */  in test_bio_base64_corner_case_bug()
438     gunk[sizeof(gunk) - 1] = '\0';  in setup_tests()
443      *  - both empty  in setup_tests()
444      *  - short junk prefix  in setup_tests()
445      *  - long gunk prefix (> internal BIO 1k buffer size),  in setup_tests()
446      *  - soft EOF suffix  in setup_tests()
447      *  - junk suffix (expect to detect an error)  in setup_tests()
465      *  - Non-retriable underlying BIO  in setup_tests()
466      *  - Retriable underlying BIO  in setup_tests()
472      * Internally, each test may loop over a range of encoded line lengths and  in setup_tests()
475     numidx = NLEN * (NVAR * NPAD - NPAD + 1) * 2 * 2;  in setup_tests()