Updated the copyright declaration in several modules, removing any language which...

[citadel.git] / citadel / locate_host.c

diff --git a/citadel/locate_host.c b/citadel/locate_host.c
index e3840570e5dbfa1a0b9483bba929465e32922531..d964bc72e0f27972e1dca54708076ccaba031baf 100644 (file)
--- a/citadel/locate_host.c
+++ b/citadel/locate_host.c
@@ -1,8 +1,15 @@
 /*
- * $Id$
- *
  * Functions which handle hostname/address lookups and resolution
  *
+ * Copyright (c) 1987-2011 by the citadel.org team
+ *
+ * This program is open source software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
  */
 
 #include "sysdep.h"
@@ -19,6 +26,7 @@
 #include <netdb.h>
 #include <string.h>
 #include <errno.h>
+#include <syslog.h>
 #include <libcitadel.h>
 #include "citadel.h"
 #include "server.h"
@@ -37,6 +45,22 @@
 #include <resolv.h>
 #endif
 
+/** START:some missing macros on OpenBSD 3.9 */
+#ifndef NS_CMPRSFLGS
+#define NS_CMPRSFLGS   0xc0
+#endif
+#if !defined(NS_MAXCDNAME) && defined (MAXCDNAME)
+#define NS_MAXCDNAME MAXCDNAME
+#endif
+#if !defined(NS_INT16SZ) && defined(INT16SZ)
+#define NS_INT16SZ INT16SZ
+#define NS_INT32SZ INT32SZ
+#endif
+#ifndef NS_GET16
+#  define NS_GET16 GETSHORT
+#endif
+
+/** END:some missing macros on OpenBSD 3.9 */
 
 /*
  * Given an open client socket, return the host name and IP address at the other end.
@@ -91,7 +115,7 @@ int rblcheck_backend(char *domain, char *txtbuf, int txtbufsize) {
 
        /* Make our DNS query. */
        answer = fixedans;
-       if (CtdlThreadCheckStop())
+       if (server_shutting_down)
        {
                if (txtbuf != NULL) {
                        snprintf(txtbuf, txtbufsize, "System shutting down");
@@ -116,13 +140,13 @@ int rblcheck_backend(char *domain, char *txtbuf, int txtbufsize) {
                if( len == -1 ) {
                        if (txtbuf != NULL) {
                                snprintf(txtbuf, txtbufsize,
-                                       "Message rejected due to known spammer source IP address");
+                                        "Message rejected due to known spammer source IP address");
                        }
                        if (need_to_free_answer) free(answer);
                        return(1);
                }
        }
-       if (CtdlThreadCheckStop())
+       if (server_shutting_down)
        {
                if (txtbuf != NULL)
                        snprintf(txtbuf, txtbufsize, "System shutting down");
@@ -139,7 +163,7 @@ int rblcheck_backend(char *domain, char *txtbuf, int txtbufsize) {
         * nameserver we're using.
         */
        len = res_query(domain, C_IN, T_TXT, answer, PACKETSZ);
-       if (CtdlThreadCheckStop())
+       if (server_shutting_down)
        {
                if (txtbuf != NULL) {
                        snprintf(txtbuf, txtbufsize, "System shutting down");
@@ -154,7 +178,7 @@ int rblcheck_backend(char *domain, char *txtbuf, int txtbufsize) {
        {
                if (txtbuf != NULL) {
                        snprintf(txtbuf, txtbufsize,
-                               "Message rejected due to known spammer source IP address");
+                                "Message rejected due to known spammer source IP address");
                }
                if (need_to_free_answer) free(answer);
                free(result);
@@ -205,11 +229,17 @@ int rblcheck_backend(char *domain, char *txtbuf, int txtbufsize) {
        }
        *rp = '\0';
        if (txtbuf != NULL) {
-               snprintf(txtbuf, txtbufsize, "%s", result);
-       }
-       /* Remove nonprintable characters */
-       for (p=txtbuf; *p; ++p) {
-               if (!isprint(*p)) strcpy(p, p+1);
+               long len;
+               len = snprintf(txtbuf, txtbufsize, "%s", result);
+       
+               /* Remove nonprintable characters */
+               for (p = txtbuf; *p != '\0'; p++) {
+                       if (!isprint(*p)) {
+                               memmove (p,
+                                        p + 1,
+                                        len - (p - txtbuf) - 1);
+                       }
+               }
        }
        if (need_to_free_answer) free(answer);
        free(result);
@@ -229,13 +259,11 @@ int rbl_check(char *message_to_spammer)
        int num_rbl;
        char rbl_domains[SIZ];
        char txt_answer[1024];
-       int ip_version = 4;
 
        strcpy(message_to_spammer, "ok");
 
        if ((strchr(CC->cs_addr, '.')) && (!strchr(CC->cs_addr, ':'))) {
                int a1, a2, a3, a4;
-               ip_version = 4;
 
                sscanf(CC->cs_addr, "%d.%d.%d.%d", &a1, &a2, &a3, &a4);
                snprintf(tbuf, sizeof tbuf, "%d.%d.%d.%d.", a4, a3, a2, a1);
@@ -247,8 +275,6 @@ int rbl_check(char *message_to_spammer)
                char workbuf[sizeof tbuf];
                char *ptr;
 
-               ip_version = 6;
-
                /* tedious code to expand and reverse an IPv6 address */
                safestrncpy(tbuf, CC->cs_addr, sizeof tbuf);
                num_colons = haschar(tbuf, ':');
@@ -299,7 +325,7 @@ int rbl_check(char *message_to_spammer)
 
                if (rblcheck_backend(tbuf, txt_answer, sizeof txt_answer)) {
                        strcpy(message_to_spammer, txt_answer);
-                       CtdlLogPrintf(CTDL_INFO, "RBL: %s\n", txt_answer);
+                       syslog(LOG_INFO, "RBL: %s\n", txt_answer);
                        return(1);
                }
        }