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@@ -1,6 +1,6 @@
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// -*- mode: cpp; mode: fold -*-
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// Description /*{{{*/
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-// $Id: rfc2553emu.cc,v 1.1 1999/05/25 05:56:24 jgg Exp $
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+// $Id: rfc2553emu.cc,v 1.2 1999/05/26 04:08:39 jgg Exp $
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/* ######################################################################
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RFC 2553 Emulation - Provides emulation for RFC 2553 getaddrinfo,
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@@ -14,9 +14,13 @@
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#include "rfc2553emu.h"
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#include <stdlib.h>
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#include <arpa/inet.h>
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-#include <iostream.h>
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+#include <string.h>
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+#include <stdio.h>
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#ifndef HAVE_GETADDRINFO
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+// getaddrinfo - Resolve a hostname /*{{{*/
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+// ---------------------------------------------------------------------
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+/* */
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int getaddrinfo(const char *nodename, const char *servname,
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const struct addrinfo *hints,
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struct addrinfo **res)
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@@ -123,7 +127,10 @@ int getaddrinfo(const char *nodename, const char *servname,
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return 0;
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}
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-
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+ /*}}}*/
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+// freeaddrinfo - Free the result of getaddrinfo /*{{{*/
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+// ---------------------------------------------------------------------
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+/* */
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void freeaddrinfo(struct addrinfo *ai)
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{
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struct addrinfo *Tmp;
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@@ -135,5 +142,85 @@ void freeaddrinfo(struct addrinfo *ai)
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free(ai);
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}
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}
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-
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+ /*}}}*/
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#endif // HAVE_GETADDRINFO
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+
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+#ifndef HAVE_GETNAMEINFO
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+// getnameinfo - Convert a sockaddr to a string /*{{{*/
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+// ---------------------------------------------------------------------
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+/* */
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+int getnameinfo(const struct sockaddr *sa, socklen_t salen,
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+ char *host, size_t hostlen,
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+ char *serv, size_t servlen,
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+ int flags)
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+{
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+ struct sockaddr_in *sin = (struct sockaddr_in *)sa;
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+
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+ // This routine only support internet addresses
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+ if (sa->sa_family != AF_INET)
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+ return EAI_ADDRFAMILY;
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+
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+ if (host != 0)
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+ {
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+ // Try to resolve the hostname
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+ if ((flags & NI_NUMERICHOST) != NI_NUMERICHOST)
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+ {
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+ struct hostent *Ent = gethostbyaddr((char *)&sin->sin_addr,sizeof(sin->sin_addr),
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+ AF_INET);
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+ if (Ent != 0)
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+ strncpy(host,Ent->h_name,hostlen);
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+ else
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+ {
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+ if ((flags & NI_NAMEREQD) == NI_NAMEREQD)
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+ {
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+ if (h_errno == TRY_AGAIN)
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+ return EAI_AGAIN;
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+ if (h_errno == NO_RECOVERY)
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+ return EAI_FAIL;
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+ return EAI_NONAME;
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+ }
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+
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+ flags |= NI_NUMERICHOST;
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+ }
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+ }
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+
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+ // Resolve as a plain numberic
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+ if ((flags & NI_NUMERICHOST) == NI_NUMERICHOST)
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+ {
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+ strncpy(host,inet_ntoa(sin->sin_addr),hostlen);
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+ }
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+ }
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+
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+ if (serv != 0)
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+ {
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+ // Try to resolve the hostname
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+ if ((flags & NI_NUMERICSERV) != NI_NUMERICSERV)
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+ {
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+ struct servent *Ent;
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+ if ((flags & NI_DATAGRAM) == NI_DATAGRAM)
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+ Ent = getservbyport(sin->sin_port,"udp");
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+ else
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+ Ent = getservbyport(sin->sin_port,"tcp");
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+
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+ if (Ent != 0)
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+ strncpy(serv,Ent->s_name,servlen);
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+ else
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+ {
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+ if ((flags & NI_NAMEREQD) == NI_NAMEREQD)
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+ return EAI_NONAME;
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+
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+ flags |= NI_NUMERICSERV;
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+ }
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+ }
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+
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+ // Resolve as a plain numberic
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+ if ((flags & NI_NUMERICSERV) == NI_NUMERICSERV)
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+ {
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+ snprintf(serv,servlen,"%u",sin->sin_port);
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+ }
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+ }
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+
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+ return 0;
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+}
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+ /*}}}*/
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+#endif // HAVE_GETNAMEINFO
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