fix dlen

[citadel.git] / citadel / domain.c

diff --git a/citadel/domain.c b/citadel/domain.c
deleted file mode 100644 (file)
index 265fce1..0000000
--- a/citadel/domain.c
+++ /dev/null
@@ -1,193 +0,0 @@
-/*
- * $Id$
- *
- * DNS lookup for SMTP sender
- *
- */
-
-#include <stdlib.h>
-#include <unistd.h>
-#include <string.h>
-#include <netinet/in.h>
-#include <arpa/nameser.h>
-#include <resolv.h>
-#include "sysdep_decls.h"
-#include "citadel.h"
-#include "domain.h"
-#include "server.h"
-#include "tools.h"
-#include "internet_addressing.h"
-
-
-/*
- * get_smarthosts() checks the Internet configuration for "smarthost"
- * entries and returns them in the same format as getmx() does -- fill the
- * buffer with a delimited list of hosts and return the number of hosts.
- */
-int get_smarthosts(char *mxbuf) {
-       int config_lines;
-       int i;
-       char buf[256];
-       char host[256], type[256];
-       int total_smarthosts = 0;
-
-       if (inetcfg == NULL) return(0);
-       strcpy(mxbuf, "");
-
-       config_lines = num_tokens(inetcfg, '\n');
-       for (i=0; i<config_lines; ++i) {
-               extract_token(buf, inetcfg, i, '\n');
-               extract_token(host, buf, 0, '|');
-               extract_token(type, buf, 1, '|');
-
-               if (!strcasecmp(type, "smarthost")) {
-                       strcat(mxbuf, host);
-                       strcat(mxbuf, "|");
-                       ++total_smarthosts;
-               }
-       }
-
-       return(total_smarthosts);
-}
-
-
-
-
-/*
- * sort_mxrecs()
- *
- * Sort a pile of MX records (struct mx, definted in domain.h) by preference
- *
- */
-void sort_mxrecs(struct mx *mxrecs, int num_mxrecs) {
-       int a, b;
-       struct mx hold1, hold2;
-
-       if (num_mxrecs < 2) return;
-
-       /* do the sort */
-       for (a = num_mxrecs - 2; a >= 0; --a) {
-               for (b = 0; b <= a; ++b) {
-                       if (mxrecs[b].pref > mxrecs[b+1].pref) {
-
-                               memcpy(&hold1, &mxrecs[b], sizeof(struct mx));
-                               memcpy(&hold2, &mxrecs[b+1], sizeof(struct mx));
-                               memcpy(&mxrecs[b], &hold2, sizeof(struct mx));
-                               memcpy(&mxrecs[b+1], &hold1, sizeof(struct mx));
-                       }
-               }
-       }
-}
-
-
-
-/* 
- * getmx()
- *
- * Return one or more MX's for a mail destination.
- *
- * Upon success, it fills 'mxbuf' with one or more MX hosts, separated by
- * vertical bar characters, and returns the number of hosts as its return
- * value.  If no MX's are found, it returns 0.
- *
- */
-int getmx(char *mxbuf, char *dest) {
-       char answer[1024];
-       int ret;
-       unsigned char *startptr, *endptr, *ptr;
-       char expanded_buf[1024];
-       unsigned short pref, type;
-       int n = 0;
-       HEADER *hp;
-       int qdcount;
-
-       struct mx *mxrecs = NULL;
-       int num_mxrecs = 0;
-       
-       /* If we're configured to send all mail to a smart-host, then our
-        * job here is really easy.
-        */
-       n = get_smarthosts(mxbuf);
-       if (n > 0) return(n);
-
-       /*
-        * No smart-host?  Look up the best MX for a site.
-        */
-       ret = res_query(
-               dest,
-               C_IN, T_MX, (unsigned char *)answer, sizeof(answer)  );
-
-       if (ret < 0) {
-               lprintf(5, "No MX found\n");
-               return(0);
-       }
-
-       /* If we had to truncate, shrink the number to avoid fireworks */
-       if (ret > sizeof(answer))
-               ret = sizeof(answer);
-
-       hp = (HEADER *)&answer[0];
-       startptr = &answer[0];          /* start and end of buffer */
-       endptr = &answer[ret];
-       ptr = startptr + HFIXEDSZ;      /* advance past header */
-
-       for (qdcount = ntohs(hp->qdcount); qdcount--; ptr += ret + QFIXEDSZ) {
-               if ((ret = dn_skipname(ptr, endptr)) < 0) {
-                       lprintf(9, "dn_skipname error\n");
-                       return(0);
-               }
-       }
-
-       while(1) {
-               memset(expanded_buf, 0, sizeof(expanded_buf));
-               ret = dn_expand(startptr,
-                               endptr,
-                               ptr,
-                               expanded_buf,
-                               sizeof(expanded_buf)
-                               );
-               if (ret < 0) break;
-               ptr += ret;
-
-               GETSHORT(type, ptr);
-               ptr += INT16SZ + INT32SZ;
-               GETSHORT(n, ptr);
-
-               if (type != T_MX) {
-                       ptr += n;
-               }
-
-               else {
-                       GETSHORT(pref, ptr);
-                       ret = dn_expand(startptr,
-                                       endptr,
-                                       ptr,
-                                       expanded_buf,
-                                       sizeof(expanded_buf)
-                                       );
-                       ptr += ret;
-
-                       ++num_mxrecs;
-                       if (mxrecs == NULL) {
-                               mxrecs = mallok(sizeof(struct mx));
-                       }
-                       else {
-                               mxrecs = reallok(mxrecs,
-                                       (sizeof(struct mx) * num_mxrecs) );
-                       }
-
-                       mxrecs[num_mxrecs - 1].pref = pref;
-                       strcpy(mxrecs[num_mxrecs - 1].host, expanded_buf);
-               }
-       }
-
-       sort_mxrecs(mxrecs, num_mxrecs);
-
-       strcpy(mxbuf, "");
-       for (n=0; n<num_mxrecs; ++n) {
-               strcat(mxbuf, mxrecs[n].host);
-               strcat(mxbuf, "|");
-       }
-       phree(mxrecs);
-       return(num_mxrecs);
-}