| 1 | #include "cdb.h" |
| 2 | #include "byte.h" |
| 3 | #include "open.h" |
| 4 | #include "error.h" |
| 5 | #include "control.h" |
| 6 | #include "constmap.h" |
| 7 | #include "stralloc.h" |
| 8 | #include "rcpthosts.h" |
| 9 | |
| 10 | static int flagrh = 0; |
| 11 | static stralloc rh = {0}; |
| 12 | static struct constmap maprh; |
| 13 | static int fdmrh; |
| 14 | |
| 15 | int rcpthosts_init() |
| 16 | { |
| 17 | flagrh = control_readfile(&rh,"control/rcpthosts",0); |
| 18 | if (flagrh != 1) return flagrh; |
| 19 | if (!constmap_init(&maprh,rh.s,rh.len,0)) return flagrh = -1; |
| 20 | fdmrh = open_read("control/morercpthosts.cdb"); |
| 21 | if (fdmrh == -1) if (errno != error_noent) return flagrh = -1; |
| 22 | return 0; |
| 23 | } |
| 24 | |
| 25 | static stralloc host = {0}; |
| 26 | |
| 27 | int rcpthosts(buf,len) |
| 28 | char *buf; |
| 29 | int len; |
| 30 | { |
| 31 | int j; |
| 32 | |
| 33 | if (flagrh != 1) return 1; |
| 34 | |
| 35 | j = byte_rchr(buf,len,'@'); |
| 36 | if (j >= len) return 1; /* presumably envnoathost is acceptable */ |
| 37 | |
| 38 | ++j; buf += j; len -= j; |
| 39 | |
| 40 | if (!stralloc_copyb(&host,buf,len)) return -1; |
| 41 | buf = host.s; |
| 42 | case_lowerb(buf,len); |
| 43 | |
| 44 | for (j = 0;j < len;++j) |
| 45 | if (!j || (buf[j] == '.')) |
| 46 | if (constmap(&maprh,buf + j,len - j)) return 1; |
| 47 | |
| 48 | if (fdmrh != -1) { |
| 49 | uint32 dlen; |
| 50 | int r; |
| 51 | |
| 52 | for (j = 0;j < len;++j) |
| 53 | if (!j || (buf[j] == '.')) { |
| 54 | r = cdb_seek(fdmrh,buf + j,len - j,&dlen); |
| 55 | if (r) return r; |
| 56 | } |
| 57 | } |
| 58 | |
| 59 | return 0; |
| 60 | } |