mirror of
git://anongit.mindrot.org/openssh.git
synced 2024-12-17 15:44:36 +00:00
62 lines
1.4 KiB
C
62 lines
1.4 KiB
C
/*
|
|
* 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 */
|