1 files changed, 61 insertions, 0 deletions
diff --git a/fake-getnameinfo.c b/fake-getnameinfo.c
new file mode 100644
index 00000000..bf1184e2
--- /dev/null
+++ b/fake-getnameinfo.c
@@ -0,0 +1,61 @@
+/*
+ * fake library for ssh
+ *
+ * This file includes getnameinfo().
+ * These funtions are defined in rfc2133.
+ *
+ * But these functions are not implemented correctly. The minimum subset
+ * is implemented for ssh use only. For exapmle, this routine assumes
+ * that ai_family is AF_INET. Don't use it for another purpose.
+ * 
+ * In the case not using 'configure --enable-ipv6', this getnameinfo.c
+ * will be used if you have broken getnameinfo or no getnameinfo.
+ */
+
+#include "includes.h"
+#include "ssh.h"
+
+#ifndef HAVE_GETNAMEINFO
+int
+getnameinfo(sa, salen, host, hostlen, serv, servlen, flags)
+const struct sockaddr *sa;
+size_t salen;
+char *host;
+size_t hostlen;
+char *serv;
+size_t servlen;
+int flags;
+{
+  struct sockaddr_in *sin = (struct sockaddr_in *)sa;
+  struct hostent *hp;
+  char tmpserv[16];
+  
+  if (serv) {
+    sprintf(tmpserv, "%d", ntohs(sin->sin_port));
+    if (strlen(tmpserv) > servlen)
+      return EAI_MEMORY;
+    else
+      strcpy(serv, tmpserv);
+  }
+  if (host)
+    if (flags & NI_NUMERICHOST)
+      if (strlen(inet_ntoa(sin->sin_addr)) > hostlen)
+	return EAI_MEMORY;
+      else {
+	strcpy(host, inet_ntoa(sin->sin_addr));
+	return 0;
+      }
+    else
+      if (hp = gethostbyaddr((char *)&sin->sin_addr, sizeof(struct in_addr),
+			     AF_INET))
+	if (strlen(hp->h_name) > hostlen)
+	  return EAI_MEMORY;
+	else {
+	  strcpy(host, hp->h_name);
+	  return 0;
+	}
+      else
+	return EAI_NODATA;
+  return 0;
+}
+#endif /* !HAVE_GETNAMEINFO */