sasl_checkapop (3) - Linux Manuals
sasl_checkapop: Check an APOP challenge/response
NAME
sasl_checkapop - Check an APOP challenge/responseSYNOPSIS
#include <sasl/sasl.h> int sasl_checkapop(sasl_conn_t *conn, const char *challenge, unsigned challen, const char *response, unsigned resplen);
DESCRIPTION
sasl_checkapop() will check an APOP challenge/response. APOP is an optional POP3 (RFC 1939) authentication command which uses a shared secret (password). The password is stored in the SASL secrets database. For information on the SASL shared secrets database see the System Administrators Guide in the doc/ directory of the SASL distribution.
If called with a NULL challenge, sasl_checkapop() will check to see if the APOP mechanism is enabled.