/* $NetBSD: clnt_perror.c,v 1.30 2013/03/11 20:19:29 tron Exp $ */
/*
* Copyright (c) 2010, Oracle America, Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
* * Neither the name of the "Oracle America, Inc." nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#if defined(LIBC_SCCS) && !defined(lint)
#if 0
static char *sccsid = "@(#)clnt_perror.c 1.15 87/10/07 Copyr 1984 Sun Micro";
static char *sccsid = "@(#)clnt_perror.c 2.1 88/07/29 4.0 RPCSRC";
#else
__RCSID("$NetBSD: clnt_perror.c,v 1.30 2013/03/11 20:19:29 tron Exp $");
#endif
#endif
/*
* clnt_perror.c
*
* Copyright (C) 1984, Sun Microsystems, Inc.
*
*/
#include "namespace.h"
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <rpc/rpc.h>
#include <rpc/types.h>
#include <rpc/auth.h>
#include <rpc/clnt.h>
#ifdef __weak_alias
__weak_alias(clnt_pcreateerror,_clnt_pcreateerror)
__weak_alias(clnt_perrno,_clnt_perrno)
__weak_alias(clnt_perror,_clnt_perror)
__weak_alias(clnt_spcreateerror,_clnt_spcreateerror)
__weak_alias(clnt_sperrno,_clnt_sperrno)
__weak_alias(clnt_sperror,_clnt_sperror)
#endif
static char *buf;
static size_t buflen;
static char *_buf(void);
static char *auth_errmsg(enum auth_stat);
static char *
_buf(void)
{
buflen = 256;
if (buf == 0)
buf = malloc(buflen);
return (buf);
}
/*
* Print reply error info
*/
char *
clnt_sperror(CLIENT *rpch, const char *s)
{
struct rpc_err e;
char *err;
char *str;
char *strstart;
size_t len, i;
_DIAGASSERT(rpch != NULL);
_DIAGASSERT(s != NULL);
str = _buf(); /* side effect: sets "buflen" */
if (str == 0)
return (0);
len = buflen;
strstart = str;
CLNT_GETERR(rpch, &e);
i = snprintf(str, len, "%s: ", s);
str += i;
len -= i;
(void)strncpy(str, clnt_sperrno(e.re_status), len - 1);
i = strlen(str);
str += i;
len -= i;
switch (e.re_status) {
case RPC_SUCCESS:
case RPC_CANTENCODEARGS:
case RPC_CANTDECODERES:
case RPC_TIMEDOUT:
case RPC_PROGUNAVAIL:
case RPC_PROCUNAVAIL:
case RPC_CANTDECODEARGS:
case RPC_SYSTEMERROR:
case RPC_UNKNOWNHOST:
case RPC_UNKNOWNPROTO:
case RPC_PMAPFAILURE:
case RPC_PROGNOTREGISTERED:
case RPC_FAILED:
break;
case RPC_CANTSEND:
case RPC_CANTRECV:
i = snprintf(str, len, "; errno = %s", strerror(e.re_errno));
str += i;
len -= i;
break;
case RPC_VERSMISMATCH:
i = snprintf(str, len, "; low version = %u, high version = %u",
e.re_vers.low, e.re_vers.high);
str += i;
len -= i;
break;
case RPC_AUTHERROR:
err = auth_errmsg(e.re_why);
i = snprintf(str, len, "; why = ");
str += i;
len -= i;
if (err != NULL) {
i = snprintf(str, len, "%s",err);
} else {
i = snprintf(str, len,
"(unknown authentication error - %d)",
(int) e.re_why);
}
str += i;
len -= i;
break;
case RPC_PROGVERSMISMATCH:
i = snprintf(str, len, "; low version = %u, high version = %u",
e.re_vers.low, e.re_vers.high);
str += i;
len -= i;
break;
default: /* unknown */
i = snprintf(str, len, "; s1 = %u, s2 = %u",
e.re_lb.s1, e.re_lb.s2);
str += i;
len -= i;
break;
}
return(strstart) ;
}
void
clnt_perror(CLIENT *rpch, const char *s)
{
_DIAGASSERT(rpch != NULL);
_DIAGASSERT(s != NULL);
(void) fprintf(stderr, "%s\n", clnt_sperror(rpch,s));
}
static const char *const rpc_errlist[] = {
[RPC_SUCCESS] = "RPC: Success",
[RPC_CANTENCODEARGS] = "RPC: Can't encode arguments",
[RPC_CANTDECODERES] = "RPC: Can't decode result",
[RPC_CANTSEND] = "RPC: Unable to send",
[RPC_CANTRECV] = "RPC: Unable to receive",
[RPC_TIMEDOUT] = "RPC: Timed out",
[RPC_VERSMISMATCH] = "RPC: Incompatible versions of RPC",
[RPC_AUTHERROR] = "RPC: Authentication error",
[RPC_PROGUNAVAIL] = "RPC: Program unavailable",
[RPC_PROGVERSMISMATCH] = "RPC: Program/version mismatch",
[RPC_PROCUNAVAIL] = "RPC: Procedure unavailable",
[RPC_CANTDECODEARGS] = "RPC: Server can't decode arguments",
[RPC_SYSTEMERROR] = "RPC: Remote system error",
[RPC_UNKNOWNHOST] = "RPC: Unknown host",
[RPC_PMAPFAILURE] = "RPC: Port mapper failure",
[RPC_PROGNOTREGISTERED] = "RPC: Program not registered",
[RPC_FAILED] = "RPC: Failed (unspecified error)",
[RPC_UNKNOWNPROTO] = "RPC: Unknown protocol",
[RPC_UNKNOWNADDR] = "RPC: Remote address unknown",
[RPC_TLIERROR] = "RPC: Misc error in the TLI library",
[RPC_NOBROADCAST] = "RPC: Broadcasting not supported",
[RPC_N2AXLATEFAILURE] = "RPC: Name -> addr translation failed",
[RPC_INPROGRESS] = "RPC: In progress",
[RPC_STALERACHANDLE] = "RPC: Stale handle",
};
/*
* This interface for use by clntrpc
*/
char *
clnt_sperrno(enum clnt_stat stat)
{
unsigned int errnum = stat;
const char *msg;
msg = NULL;
if (errnum < (sizeof(rpc_errlist)/sizeof(rpc_errlist[0]))) {
msg = rpc_errlist[errnum];
}
if (msg == NULL) {
msg = "RPC: (unknown error code)";
}
return __UNCONST(msg);
}
void
clnt_perrno(enum clnt_stat num)
{
(void) fprintf(stderr, "%s\n", clnt_sperrno(num));
}
char *
clnt_spcreateerror(const char *s)
{
char *str;
size_t len, i;
_DIAGASSERT(s != NULL);
str = _buf(); /* side effect: sets "buflen" */
if (str == 0)
return(0);
len = buflen;
i = snprintf(str, len, "%s: ", s);
len -= i;
(void)strncat(str, clnt_sperrno(rpc_createerr.cf_stat), len - 1);
switch (rpc_createerr.cf_stat) {
case RPC_PMAPFAILURE:
(void) strncat(str, " - ", len - 1);
(void) strncat(str,
clnt_sperrno(rpc_createerr.cf_error.re_status), len - 4);
break;
case RPC_SYSTEMERROR:
(void)strncat(str, " - ", len - 1);
(void)strncat(str, strerror(rpc_createerr.cf_error.re_errno),
len - 4);
break;
case RPC_CANTSEND:
case RPC_CANTDECODERES:
case RPC_CANTENCODEARGS:
case RPC_SUCCESS:
case RPC_UNKNOWNPROTO:
case RPC_PROGNOTREGISTERED:
case RPC_FAILED:
case RPC_UNKNOWNHOST:
case RPC_CANTDECODEARGS:
case RPC_PROCUNAVAIL:
case RPC_PROGVERSMISMATCH:
case RPC_PROGUNAVAIL:
case RPC_AUTHERROR:
case RPC_VERSMISMATCH:
case RPC_TIMEDOUT:
case RPC_CANTRECV:
default:
break;
}
return (str);
}
void
clnt_pcreateerror(const char *s)
{
_DIAGASSERT(s != NULL);
(void) fprintf(stderr, "%s\n", clnt_spcreateerror(s));
}
static const char *const auth_errlist[] = {
"Authentication OK", /* 0 - AUTH_OK */
"Invalid client credential", /* 1 - AUTH_BADCRED */
"Server rejected credential", /* 2 - AUTH_REJECTEDCRED */
"Invalid client verifier", /* 3 - AUTH_BADVERF */
"Server rejected verifier", /* 4 - AUTH_REJECTEDVERF */
"Client credential too weak", /* 5 - AUTH_TOOWEAK */
"Invalid server verifier", /* 6 - AUTH_INVALIDRESP */
"Failed (unspecified error)" /* 7 - AUTH_FAILED */
};
static char *
auth_errmsg(enum auth_stat stat)
{
unsigned int errnum = stat;
if (errnum < __arraycount(auth_errlist))
return __UNCONST(auth_errlist[errnum]);
return(NULL);
}