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/*
* 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 (NULL != (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 */
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