70 lines
1.9 KiB
C
70 lines
1.9 KiB
C
#include "config.h"
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#include <assert.h>
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#include <common/bech32.h>
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#include <stdint.h>
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#include <string.h>
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#include <tests/fuzz/libfuzz.h>
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void init(int *argc, char ***argv)
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{
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}
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void run(const uint8_t *data, size_t size)
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{
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const char hrp_inv[5] = "lnbc\0", hrp_addr[3] = "bc\0";
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char *bech32_str, *hrp_out, *addr;
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uint8_t *data_out;
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size_t data_out_len, bech32_str_cap;
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int decode_wit_version;
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bech32_encoding benc, benc_decoded;
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if (size < 1)
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return;
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/* Buffer size is defined in each function's doc comment. */
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benc = data[0] ? BECH32_ENCODING_BECH32 : BECH32_ENCODING_BECH32M;
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bech32_str_cap = (size - 1) + strlen(hrp_inv) + 8;
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bech32_str = malloc(bech32_str_cap);
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if (bech32_encode(bech32_str, hrp_inv, data + 1, size - 1,
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bech32_str_cap, benc) == 1) {
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hrp_out = malloc(strlen(bech32_str) - 6);
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data_out = malloc(strlen(bech32_str) - 8);
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benc_decoded = bech32_decode(hrp_out, data_out, &data_out_len,
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bech32_str, bech32_str_cap);
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assert(benc_decoded == benc);
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assert(strcmp(hrp_inv, hrp_out) == 0);
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assert(data_out_len == size - 1);
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assert(memcmp(data_out, data + 1, data_out_len) == 0);
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free(hrp_out);
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free(data_out);
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}
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free(bech32_str);
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data_out = malloc(size);
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/* This is also used as part of sign and check message. */
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data_out_len = 0;
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bech32_convert_bits(data_out, &data_out_len, 8, data, size, 5, 1);
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data_out_len = 0;
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bech32_convert_bits(data_out, &data_out_len, 8, data, size, 5, 0);
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addr = malloc(73 + strlen(hrp_addr));
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for (int wit_version = 0; wit_version < 2; ++wit_version) {
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if (segwit_addr_encode(addr, hrp_addr, wit_version, data,
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size) == 0)
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continue;
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assert(segwit_addr_decode(&decode_wit_version, data_out,
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&data_out_len, hrp_addr, addr) == 1);
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assert(decode_wit_version == wit_version);
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assert(data_out_len == size);
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assert(memcmp(data_out, data, data_out_len) == 0);
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}
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free(addr);
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free(data_out);
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}
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