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strnlen() may not be available everywhere

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This commit is contained in:
Frank Denis 2018-07-22 21:54:38 +02:00
parent d2728ad93e
commit 2052cc7847
1 changed files with 13 additions and 2 deletions
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15
src/libsodium/crypto_pwhash/scryptsalsa208sha256/pwhash_scryptsalsa208sha256.c
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@ -52,6 +52,17 @@ pickparams(unsigned long long opslimit, const size_t memlimit,
return 0;
}
static size_t
sodium_strnlen(const char *str, size_t maxlen)
{
size_t i = 0U;
while (i < maxlen && str[i] != 0) {
i++;
}
return i;
}
size_t
crypto_pwhash_scryptsalsa208sha256_bytes_min(void)
{
@ -234,7 +245,7 @@ crypto_pwhash_scryptsalsa208sha256_str_verify(
escrypt_local_t escrypt_local;
int ret = -1;
if (strnlen(str, crypto_pwhash_scryptsalsa208sha256_STRBYTES) !=
if (sodium_strnlen(str, crypto_pwhash_scryptsalsa208sha256_STRBYTES) !=
crypto_pwhash_scryptsalsa208sha256_STRBYTES - 1U) {
return -1;
}
@ -268,7 +279,7 @@ crypto_pwhash_scryptsalsa208sha256_str_needs_rehash(
errno = EINVAL;
return -1;
}
if (strnlen(str, crypto_pwhash_scryptsalsa208sha256_STRBYTES) !=
if (sodium_strnlen(str, crypto_pwhash_scryptsalsa208sha256_STRBYTES) !=
crypto_pwhash_scryptsalsa208sha256_STRBYTES - 1U) {
errno = EINVAL;
return -1;