projects / exim.git / blame
| Commit | Line | Data |
|---|---|---|
| 0756eb3c PH |
1 | /************************************************* |
| 2 | * Exim - an Internet mail transport agent * | |
| 3 | *************************************************/ | |
| 4 | ||
| 0a49a7a4 | 5 | /* Copyright (c) University of Cambridge 1995 - 2009 */ |
| 0756eb3c PH |
6 | /* See the file NOTICE for conditions of use and distribution. */ |
| 7 | ||
| 8 | #include "../exim.h" | |
| 9 | ||
| 10 | ||
| 11 | /************************************************* | |
| 12 | * Issue a challenge and get a response * | |
| 13 | *************************************************/ | |
| 14 | ||
| 15 | /* This function is used by authentication drivers to output a challenge | |
| 16 | to the SMTP client and read the response line. | |
| 17 | ||
| 18 | Arguments: | |
| 19 | aptr set to point to the response (which is in big_buffer) | |
| 20 | challenge the challenge text (unencoded, may be binary) | |
| 21 | challen the length of the challenge text | |
| 22 | ||
| 23 | Returns: OK on success | |
| 24 | BAD64 if response too large for buffer | |
| 25 | CANCELLED if response is "*" | |
| 26 | */ | |
| 27 | ||
| 28 | int | |
| 29 | auth_get_data(uschar **aptr, uschar *challenge, int challen) | |
| 30 | { | |
| 31 | int c; | |
| 32 | int p = 0; | |
| 33 | smtp_printf("334 %s\r\n", auth_b64encode(challenge, challen)); | |
| 34 | while ((c = receive_getc()) != '\n' && c != EOF) | |
| 35 | { | |
| 36 | if (p >= big_buffer_size - 1) return BAD64; | |
| 37 | big_buffer[p++] = c; | |
| 38 | } | |
| 39 | if (p > 0 && big_buffer[p-1] == '\r') p--; | |
| 40 | big_buffer[p] = 0; | |
| 898d150f | 41 | DEBUG(D_receive) debug_printf("SMTP<< %s\n", big_buffer); |
| 0756eb3c PH |
42 | if (Ustrcmp(big_buffer, "*") == 0) return CANCELLED; |
| 43 | *aptr = big_buffer; | |
| 44 | return OK; | |
| 45 | } | |
| 46 | ||
| 47 | /* End of get_data.c */ |