gen_ho.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* Copyright 1997-2002 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/*
* Copyright (c) 1996,1999 by Internet Software Consortium.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
* ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
* CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
* ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
* SOFTWARE.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#endif /* LIBC_SCCS and not lint */
/* Imports */
#include "port_before.h"
#include <errno.h>
#include <stdlib.h>
#include <netdb.h>
#include <resolv.h>
#include <stdio.h>
#include <string.h>
#include <isc/memcluster.h>
#include <irs.h>
#include "port_after.h"
#include "irs_p.h"
#include "gen_p.h"
/* Definitions */
struct pvt {
struct __res_state * res;
void (*free_res)(void *);
};
/* Forwards */
int af);
struct __res_state *res,
void (*free_res)(void *));
/* Exports */
struct irs_ho *
return (NULL);
}
return (NULL);
}
return (ho);
}
/* Methods. */
static void
}
static struct hostent *
int therrno = NETDB_INTERNAL;
int softerror = 0;
return (NULL);
errno = 0;
return (rval);
if (softerror == 0 &&
softerror = 1;
}
continue;
/*
* The value TRY_AGAIN can mean that the service
* is not available, or just that this particular name
* cannot be resolved now. We use the errno ECONNREFUSED
* to distinguish. If a lookup sets that errno when
* H_ERRNO is TRY_AGAIN, we continue to try other lookup
* functions, otherwise we return the TRY_AGAIN error.
*/
break;
}
return (NULL);
}
static struct hostent *
int therrno = NETDB_INTERNAL;
int softerror = 0;
return (NULL);
errno = 0;
return (rval);
if (softerror == 0 &&
softerror = 1;
}
continue;
/*
* See the comments in ho_byname() explaining
* the interpretation of TRY_AGAIN and ECONNREFUSED.
*/
break;
}
return (NULL);
}
static struct hostent *
int therrno = NETDB_INTERNAL;
int softerror = 0;
return (NULL);
errno = 0;
return (rval);
if (softerror == 0 &&
softerror = 1;
}
continue;
/*
* See the comments in ho_byname() explaining
* the interpretation of TRY_AGAIN and ECONNREFUSED.
*/
break;
}
return (NULL);
}
static struct hostent *
if (rval)
return (rval);
break;
}
}
return (NULL);
}
static void
}
}
static void
}
}
static struct __res_state *
struct __res_state *res;
if (!res) {
return (NULL);
}
}
}
static void
void (*free_res)(void *)) {
}
}
}
static struct addrinfo *
{
int therrno = NETDB_INTERNAL;
int softerror = 0;
return (NULL);
errno = 0;
continue;
return (rval);
if (softerror == 0 &&
softerror = 1;
}
continue;
/*
* See the comments in ho_byname() explaining
* the interpretation of TRY_AGAIN and ECONNREFUSED.
*/
errno != ECONNREFUSED)
break;
}
if (rval)
return (NULL);
}
static int
return (-1);
return (-1);
return (0);
}