szaszm commented on a change in pull request #1028:
URL: https://github.com/apache/nifi-minifi-cpp/pull/1028#discussion_r596130219
##########
File path: libminifi/src/io/tls/SecureDescriptorStream.cpp
##########
@@ -71,34 +71,29 @@ int SecureDescriptorStream::write(const uint8_t *value, int
size) {
}
}
-int SecureDescriptorStream::read(uint8_t *buf, int buflen) {
- gsl_Expects(buflen >= 0);
+size_t SecureDescriptorStream::read(uint8_t * const buf, const size_t buflen) {
if (buflen == 0) {
return 0;
}
- if (!IsNullOrEmpty(buf)) {
- int total_read = 0;
- int status = 0;
- while (buflen) {
- int sslStatus;
- do {
- status = SSL_read(ssl_, buf, buflen);
- sslStatus = SSL_get_error(ssl_, status);
- } while (status < 0 && sslStatus == SSL_ERROR_WANT_READ);
+ if (IsNullOrEmpty(buf)) return static_cast<size_t>(-1);
+ size_t total_read = 0;
+ uint8_t* writepos = buf;
+ while (buflen > total_read) {
+ int status;
+ int sslStatus;
+ do {
+ status = SSL_read(ssl_, writepos, gsl::narrow<int>(std::min(buflen -
total_read, gsl::narrow<size_t>(std::numeric_limits<int>::max()))));
Review comment:
named the third argument in 46f3b0e
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