Initial commit of djbdns-1.05.tar.gz

Source was http://cr.yp.to/djbdns/djbdns-1.05.tar.gz, SHA1 2efdb3a039d0c548f40936aa9cb30829e0ce8c3d

1 files changed, 64 insertions, 0 deletions

diff --git a/dnsmx.c b/dnsmx.c
new file mode 100644
index 0000000..5d75d39
--- /dev/null
+++ b/dnsmx.c
@@ -0,0 +1,64 @@
+#include "buffer.h"
+#include "exit.h"
+#include "strerr.h"
+#include "uint16.h"
+#include "byte.h"
+#include "str.h"
+#include "fmt.h"
+#include "dns.h"
+
+#define FATAL "dnsmx: fatal: "
+
+void nomem(void)
+{
+  strerr_die2x(111,FATAL,"out of memory");
+}
+
+static char seed[128];
+
+static stralloc fqdn;
+static char *q;
+static stralloc out;
+char strnum[FMT_ULONG];
+
+int main(int argc,char **argv)
+{
+  int i;
+  int j;
+  uint16 pref;
+
+  dns_random_init(seed);
+
+  if (*argv) ++argv;
+
+  while (*argv) {
+    if (!stralloc_copys(&fqdn,*argv)) nomem();
+    if (dns_mx(&out,&fqdn) == -1)
+      strerr_die4sys(111,FATAL,"unable to find MX records for ",*argv,": ");
+
+    if (!out.len) {
+      if (!dns_domain_fromdot(&q,*argv,str_len(*argv))) nomem();
+      if (!stralloc_copys(&out,"0 ")) nomem();
+      if (!dns_domain_todot_cat(&out,q)) nomem();
+      if (!stralloc_cats(&out,"\n")) nomem();
+      buffer_put(buffer_1,out.s,out.len);
+    }
+    else {
+      i = 0;
+      while (i + 2 < out.len) {
+	j = byte_chr(out.s + i + 2,out.len - i - 2,0);
+	uint16_unpack_big(out.s + i,&pref);
+	buffer_put(buffer_1,strnum,fmt_ulong(strnum,pref));
+	buffer_puts(buffer_1," ");
+	buffer_put(buffer_1,out.s + i + 2,j);
+	buffer_puts(buffer_1,"\n");
+	i += j + 3;
+      }
+    }
+
+    ++argv;
+  }
+
+  buffer_flush(buffer_1);
+  _exit(0);
+}