/*
* mxget.c -- fetch MX records for given DNS name
*
- * Copyright 1997 by Eric S. Raymond
+ * Copyright (C) 1996, 1997, 1998, 2000, 2002 by Eric S. Raymond
+ * Copyright (C) 2005, 2006, 2007 by Matthias Andree
* For license terms, see the file COPYING in this directory.
*/
#include "config.h"
+#include "fetchmail.h"
#include <stdio.h>
-#ifdef HAVE_RES_SEARCH
#include <string.h>
+#ifdef HAVE_RES_SEARCH
#ifdef HAVE_NET_SOCKET_H
#include <net/socket.h>
#endif
n = res_search(name, C_IN,T_MX, (unsigned char *)&answer, sizeof(answer));
if (n == -1)
return((struct mxentry *)NULL);
- if (n > sizeof(answer))
+ if ((size_t)n > sizeof(answer))
n = sizeof(answer);
hp = (HEADER *)&answer;
eom = answer + n;
h_errno = 0;
for (qdcount = ntohs(hp->qdcount); qdcount--; cp += n + QFIXEDSZ)
- if ((n = dn_skipname(cp, eom)) < 0)
+ if ((n = dn_skipname((unsigned char *)cp, (unsigned char *)eom)) < 0)
return((struct mxentry *)NULL);
buflen = sizeof(MXHostBuf) - 1;
bp = MXHostBuf;
ancount = ntohs(hp->ancount);
while (--ancount >= 0 && cp < eom)
{
- if ((n = dn_expand(answer, eom, cp, bp, buflen)) < 0)
+ if ((n = dn_expand((unsigned char *)answer, (unsigned char *)eom,
+ (unsigned char *)cp, bp, buflen)) < 0)
break;
cp += n;
GETSHORT(type, cp);
continue;
}
GETSHORT(pref, cp);
- if ((n = dn_expand(answer, eom, cp, bp, buflen)) < 0)
+ if ((n = dn_expand((unsigned char *)answer, (unsigned char *)eom,
+ (unsigned char *)cp, bp, buflen)) < 0)
break;
cp += n;
int main(int argc, char *argv[])
{
- int count, i;
+#ifdef HAVE_RES_SEARCH
struct mxentry *responses;
+#endif
if (argc != 2 || 0 == strcmp(argv[1], "-h")) {
fprintf(stderr, "Usage: %s domain\n", argv[0]);
exit(1);
}
+#ifdef HAVE_RES_SEARCH
responses = getmxrecords(argv[1]);
- if (responses == (struct mxentry *)NULL)
+ if (responses == (struct mxentry *)NULL) {
puts("No MX records found");
- else
+ } else {
do {
printf("%s %d\n", responses->name, responses->pref);
- } while
- ((++responses)->name);
+ } while ((++responses)->name);
+ }
+#else
+ puts("This program was compiled without HAS_RES_SEARCH and does nothing.");
+#endif
return 0;
}