Import OpenSSH 3.9p1.

1 files changed, 55 insertions, 0 deletions

diff --git a/openbsd-compat/fake-getnameinfo.c b/openbsd-compat/fake-getnameinfo.c
new file mode 100644
index 000000000..e255ed333
--- /dev/null
+++ b/openbsd-compat/fake-getnameinfo.c
@@ -0,0 +1,55 @@
+/*
+ * 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.
+ */
+
+#include "includes.h"
+#include "ssh.h"
+
+RCSID("$Id: fake-getnameinfo.c,v 1.2 2001/02/09 01:55:36 djm Exp $");
+
+#ifndef HAVE_GETNAMEINFO
+int getnameinfo(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) {
+                snprintf(tmpserv, sizeof(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;
+
+                        strcpy(host, inet_ntoa(sin->sin_addr));
+                        return 0;
+                } else {
+                        hp = gethostbyaddr((char *)&sin->sin_addr, 
+                                sizeof(struct in_addr), AF_INET);
+                        if (hp == NULL)
+                                return EAI_NODATA;
+                        
+                        if (strlen(hp->h_name) >= hostlen)
+                                return EAI_MEMORY;
+
+                        strcpy(host, hp->h_name);
+                        return 0;
+                }
+        }
+        return 0;
+}
+#endif /* !HAVE_GETNAMEINFO */