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Everywhere: Port to String::copy_characters_to_buffer()

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This commit is contained in:
Sergey Bugaev 2020-08-25 17:32:01 +03:00 • committed by Andreas Kling
parent be6cce5530
commit 852454746e
8 changed files with 39 additions and 18 deletions
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12
Libraries/LibCrypt/crypt.cpp
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@ -55,7 +55,11 @@ char* crypt_r(const char* key, const char* salt, struct crypt_data* data)
size_t salt_len = min(strcspn(salt_value, "$"), crypt_salt_max);
size_t header_len = salt_len + 3;
strncpy(data->result, salt, header_len);
bool fits = String(salt, header_len).copy_characters_to_buffer(data->result, sizeof(data->result));
if (!fits) {
errno = EINVAL;
return nullptr;
}
data->result[header_len] = '$';
Crypto::Hash::SHA256 sha;
@ -65,7 +69,11 @@ char* crypt_r(const char* key, const char* salt, struct crypt_data* data)
auto digest = sha.digest();
auto string = encode_base64(ReadonlyBytes(digest.immutable_data(), digest.data_length()));
strncpy(data->result + header_len + 1, string.characters(), sha_string_length);
fits = string.copy_characters_to_buffer(data->result + header_len + 1, sizeof(data->result) - header_len - 1);
if (!fits) {
errno = EINVAL;
return nullptr;
}
return data->result;
}