1 /* $Cambridge: exim/src/src/auths/get_data.c,v 1.1 2004/10/07 13:10:01 ph10 Exp $ */
3 /*************************************************
4 * Exim - an Internet mail transport agent *
5 *************************************************/
7 /* Copyright (c) University of Cambridge 1995 - 2004 */
8 /* See the file NOTICE for conditions of use and distribution. */
13 /*************************************************
14 * Issue a challenge and get a response *
15 *************************************************/
17 /* This function is used by authentication drivers to output a challenge
18 to the SMTP client and read the response line.
21 aptr set to point to the response (which is in big_buffer)
22 challenge the challenge text (unencoded, may be binary)
23 challen the length of the challenge text
25 Returns: OK on success
26 BAD64 if response too large for buffer
27 CANCELLED if response is "*"
31 auth_get_data(uschar **aptr, uschar *challenge, int challen)
35 smtp_printf("334 %s\r\n", auth_b64encode(challenge, challen));
36 while ((c = receive_getc()) != '\n' && c != EOF)
38 if (p >= big_buffer_size - 1) return BAD64;
41 if (p > 0 && big_buffer[p-1] == '\r') p--;
43 if (Ustrcmp(big_buffer, "*") == 0) return CANCELLED;
48 /* End of get_data.c */