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authorErwin Hoffmann <feh@fehcom.de>2024-01-14 17:55:54 +0100
committerErwin Hoffmann <feh@fehcom.de>2024-01-14 17:55:54 +0100
commita293489ee83c8b05d845a162dc2a4de026f3775d (patch)
treed50ab15afde698ad2d32bfc251753e5e89204f25 /sqmail-4.3.07/src/dnsfq.c
s/qmail 4.3.07
Diffstat (limited to 'sqmail-4.3.07/src/dnsfq.c')
-rw-r--r--sqmail-4.3.07/src/dnsfq.c64
1 files changed, 64 insertions, 0 deletions
diff --git a/sqmail-4.3.07/src/dnsfq.c b/sqmail-4.3.07/src/dnsfq.c
new file mode 100644
index 0000000..a174541
--- /dev/null
+++ b/sqmail-4.3.07/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);
+}