/docs/manmaster/man3/SSL_get_error.html

NAME SSL_get_error - obtain result code for TLS/SSL I/O operation SYNOPSIS #include <openssl/ssl.h> int SSL_get_error(const SSL *ssl, int ret); DESCRIPTION SSL_get_error() returns a result code (suitable for the C "switch" statement) for a preceding call to SSL_connect(), SSL_accept(), SSL_do_handshake(), SSL_read_ex(), SSL_read(), SSL_peek_ex(), SSL_peek(), SSL_shutdown(), SSL_write_ex() or SSL_w

[sankaseki]

OpenSSL: Documents, SSL_get_error(3)

[clearsky2967]

OpenSLLのエラーコード一覧。でも、理解出来ないのもあったりする。