diff options
Diffstat (limited to 'crypto/openssh/openbsd-compat/fake-getnameinfo.c')
-rw-r--r-- | crypto/openssh/openbsd-compat/fake-getnameinfo.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/crypto/openssh/openbsd-compat/fake-getnameinfo.c b/crypto/openssh/openbsd-compat/fake-getnameinfo.c new file mode 100644 index 0000000..e255ed3 --- /dev/null +++ b/crypto/openssh/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 */ |