PS_BIN_UNDEF      871 ext/session/session.c #define PS_BIN_MAX (PS_BIN_UNDEF-1)
PS_BIN_UNDEF      888 ext/session/session.c 			smart_str_appendc(&buf, (unsigned char) (key_length & PS_BIN_UNDEF));
PS_BIN_UNDEF      917 ext/session/session.c 		namelen = ((unsigned char)(*p)) & (~PS_BIN_UNDEF);
PS_BIN_UNDEF      923 ext/session/session.c 		has_value = *p & PS_BIN_UNDEF ? 0 : 1;