add sqmail-4.2.29asqmail-4.2

1 files changed, 64 insertions, 0 deletions

diff --git a/src/dnsfq.c b/src/dnsfq.c
new file mode 100644
index 0000000..a174541
--- /dev/null
+++ b/src/dnsfq.c
@@ -0,0 +1,64 @@
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <unistd.h>
+#include "buffer.h"
+#include "stralloc.h"
+#include "dnsresolv.h"
+#include "dns.h"
+#include "ip.h"
+#include "exit.h"
+#include "logmsg.h"
+
+#define WHO "dnsfq"
+#define MAXCNAME 10
+
+stralloc ca = {0};
+stralloc sa = {0};
+stralloc ia = {0};
+
+int main(int argc,char **argv)
+{
+  int i, r;
+  char ip4str[IP4_FMT];
+  char ip6str[IP6_FMT];
+
+  if (!argv[1]) 
+    logmsg(WHO,100,USAGE,"dnsfq fqdn");
+
+  if (!stralloc_copys(&sa,argv[1])) 
+    logmsg(WHO,111,FATAL,"out of memory");
+
+  DNS_INIT
+  buffer_put(buffer_1,sa.s,sa.len);
+  buffer_puts(buffer_1," ");
+  for (i = 0; i <= MAXCNAME; i++) {
+    if ((r = dns_cname(&ca,&sa)) < 0) _exit(1);
+    if (r > 0) {
+      if (!stralloc_copy(&sa,&ca)) 
+        logmsg(WHO,111,FATAL,"out of memory");
+      buffer_puts(buffer_1,"-> ");
+      buffer_put(buffer_1,sa.s,sa.len);
+      buffer_puts(buffer_1," ");
+    } 
+    else break;
+  }
+  buffer_putsflush(buffer_1,"\n");
+
+  if ((i = dns_ip6(&ia,&sa)) > 0) {
+    for (i = 0; i + 16 <= ia.len; i += 16) {
+      if (ip6_isv4mapped(ia.s + i)) continue;
+      buffer_put(buffer_1,ip6str,ip6_fmt(ip6str,ia.s + i));
+      buffer_puts(buffer_1,"\n");
+    }
+  }
+
+  if ((i = dns_ip4(&ia,&sa)) > 0) {
+    for (i = 0; i + 4 <= ia.len;i += 4) {
+      buffer_put(buffer_1,ip4str,ip4_fmt(ip4str,ia.s + i));
+      buffer_puts(buffer_1,"\n");
+    }
+  }
+  buffer_flush(buffer_1);
+
+  _exit(0);
+}