Commit | Line | Data |
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c988f1f4 | 1 | /* $Cambridge: exim/src/src/auths/get_no64_data.c,v 1.2 2005/01/04 10:00:43 ph10 Exp $ */ |
0756eb3c PH |
2 | |
3 | /************************************************* | |
4 | * Exim - an Internet mail transport agent * | |
5 | *************************************************/ | |
6 | ||
c988f1f4 | 7 | /* Copyright (c) University of Cambridge 1995 - 2005 */ |
0756eb3c PH |
8 | /* See the file NOTICE for conditions of use and distribution. */ |
9 | ||
10 | #include "../exim.h" | |
11 | ||
12 | ||
13 | /************************************************* | |
14 | * Issue a non-b64 challenge and get a response * | |
15 | *************************************************/ | |
16 | ||
17 | /* This function is used by authentication drivers to output a challenge | |
18 | to the SMTP client and read the response line. This version does not use base | |
19 | 64 encoding for the text on the 334 line. It is used by the SPA authenticator. | |
20 | ||
21 | Arguments: | |
22 | aptr set to point to the response (which is in big_buffer) | |
23 | challenge the challenge text (unencoded) | |
24 | ||
25 | Returns: OK on success | |
26 | BAD64 if response too large for buffer | |
27 | CANCELLED if response is "*" | |
28 | */ | |
29 | ||
30 | int | |
31 | auth_get_no64_data(uschar **aptr, uschar *challenge) | |
32 | { | |
33 | int c; | |
34 | int p = 0; | |
35 | smtp_printf("334 %s\r\n", challenge); | |
36 | while ((c = receive_getc()) != '\n' && c != EOF) | |
37 | { | |
38 | if (p >= big_buffer_size - 1) return BAD64; | |
39 | big_buffer[p++] = c; | |
40 | } | |
41 | if (p > 0 && big_buffer[p-1] == '\r') p--; | |
42 | big_buffer[p] = 0; | |
43 | if (Ustrcmp(big_buffer, "*") == 0) return CANCELLED; | |
44 | *aptr = big_buffer; | |
45 | return OK; | |
46 | } | |
47 | ||
48 | /* End of get_no64_data.c */ |