e721b0a89a
Changelog-None: Currently, fuzz testing for b64_encode() merely encodes input and frees the result, providing no real verification of its behavior. Introduce a new b64_decode() function (modeled after b32_decode()) and update the fuzz test to perform a roundtrip—encoding followed by decoding—to ensure that b64_encode() correctly preserves the original data.
26 lines
665 B
C
26 lines
665 B
C
#include "config.h"
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#include <assert.h>
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#include <ccan/base64/base64.h>
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#include <common/base64.h>
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/* Decode/encode from/to base64, base64 helper functions.*/
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char *b64_encode(const tal_t *ctx, const void *data, size_t len)
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{
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size_t slen = base64_encoded_length(len), enclen;
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char *str = tal_arr(ctx, char, slen + 1);
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enclen = base64_encode(str, slen, data, len);
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assert(enclen == slen);
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str[enclen] = '\0';
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return str;
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}
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u8 *b64_decode(const tal_t *ctx, const char *str, size_t len)
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{
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size_t dlen = base64_decoded_length(len);
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u8 *ret = tal_arr(ctx, u8, dlen);
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if (base64_decode((char *)ret, dlen, str, len) < 0)
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return tal_free(ret);
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return ret;
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}
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