X-Git-Url: http://pileus.org/git/?a=blobdiff_plain;f=checkalias.c;h=1e1d16339fe033fc082154c494d78f15b830e512;hb=49268a95ee78bc179fd3439b3f06e9a06c993c92;hp=80356ed292a5f6dca37d3e94d14f7c1e8d3d9444;hpb=df4a264f6a4bf53592f9e273462a8861ea7e6a6d;p=~andy%2Ffetchmail

diff --git a/checkalias.c b/checkalias.c
index 80356ed2..1e1d1633 100644
--- a/checkalias.c
+++ b/checkalias.c
@@ -28,6 +28,7 @@
 
 typedef unsigned char address_t[sizeof (struct in_addr)];
 
+#ifdef HAVE_RES_SEARCH
 static int getaddresses(struct addrinfo **result, const char *name)
 {
     struct addrinfo hints;
@@ -82,15 +83,18 @@ found:
 	fm_freeaddrinfo(res1);
     return rc;
 }
+#endif
 
 int is_host_alias(const char *name, struct query *ctl, struct addrinfo **res)
 /* determine whether name is a DNS alias of the mailserver for this query */
 {
+#ifdef HAVE_RES_SEARCH
     struct mxentry	*mxp, *mxrecords;
-    struct idlist	*idl;
-    size_t		namelen;
     int			e;
     struct addrinfo	hints, *res_st;
+#endif
+    struct idlist	*idl;
+    size_t		namelen;
 
     struct hostdata *lead_server =
 	ctl->server.lead_server ? ctl->server.lead_server : &ctl->server;
@@ -125,7 +129,7 @@ int is_host_alias(const char *name, struct query *ctl, struct addrinfo **res)
     namelen = strlen(name);
     for (idl = lead_server->akalist; idl; idl = idl->next)
     {
-	char	*ep;
+	const char	*ep;
 
 	/*
 	 * Test is >= here because str_in_list() should have caught the
@@ -134,7 +138,7 @@ int is_host_alias(const char *name, struct query *ctl, struct addrinfo **res)
 	 */
 	if (strlen(idl->id) >= namelen)
 	    continue;
-	ep = (char *)name + (namelen - strlen(idl->id));
+	ep = name + (namelen - strlen(idl->id));
 	/* a suffix led by . must match */
 	if (ep[-1] == '.' && !strcasecmp(ep, idl->id))
 	    return(TRUE);
@@ -143,6 +147,7 @@ int is_host_alias(const char *name, struct query *ctl, struct addrinfo **res)
     if (!ctl->server.dns)
 	return(FALSE);
 #ifndef HAVE_RES_SEARCH
+    (void)res;
     return(FALSE);
 #else
     /*
@@ -189,6 +194,15 @@ int is_host_alias(const char *name, struct query *ctl, struct addrinfo **res)
 	switch (e)
 	{
 	    case EAI_NONAME:	/* specified host is unknown */
+#ifdef EAI_NODATA
+	    /* EAI_NODATA was in the older RFC-2553, but that got
+	     * obsoleted by RFC-3493 - there, EAI_NODATA is no longer
+	     * valid, and modern operating systems no longer issue this
+	     * error code. libesmtp/getaddrinfo.?, however, still does.
+	     * (This was reported to Brian Stafford 2013-02-03.)
+	     */
+	    case EAI_NODATA:	/* specified host is unknown */
+#endif
 		break;
 
 	    default: