projects / exim.git / blame
| Commit | Line | Data |
|---|---|---|
| d7d7b7b9 | 1 | /* $Cambridge: exim/src/src/auths/get_data.c,v 1.3 2006/02/07 11:19:01 ph10 Exp $ */ |
| 0756eb3c PH |
2 | |
| 3 | /************************************************* | |
| 4 | * Exim - an Internet mail transport agent * | |
| 5 | *************************************************/ | |
| 6 | ||
| d7d7b7b9 | 7 | /* Copyright (c) University of Cambridge 1995 - 2006 */ |
| 0756eb3c PH |
8 | /* See the file NOTICE for conditions of use and distribution. */ |
| 9 | ||
| 10 | #include "../exim.h" | |
| 11 | ||
| 12 | ||
| 13 | /************************************************* | |
| 14 | * Issue a 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. | |
| 19 | ||
| 20 | Arguments: | |
| 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 | |
| 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_data(uschar **aptr, uschar *challenge, int challen) | |
| 32 | { | |
| 33 | int c; | |
| 34 | int p = 0; | |
| 35 | smtp_printf("334 %s\r\n", auth_b64encode(challenge, challen)); | |
| 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_data.c */ |