/* @(#)clnt_perror.c 2.1 88/07/29 4.0 RPCSRC */
/*
* Copyright (c) 2010, Oracle America, Inc.
*
* All rights reserved.
*
* 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.
*/
#if !defined(lint) && defined(SCCSIDS)
static char sccsid[] = "@(#)clnt_perror.c 1.15 87/10/07 Copyr 1984 Sun Micro";
#endif
/*
* clnt_perror.c
*/
#include "autoconf.h"
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <gssrpc/types.h>
#include <gssrpc/auth.h>
#include <gssrpc/clnt.h>
#ifndef HAVE_STRERROR
#ifdef NEED_SYS_ERRLIST
extern char *sys_errlist[];
#endif
extern int sys_nerr;
#undef strerror
#define strerror(N) (((N) > 0 && (N) < sys_nerr) ? sys_errlist[N] : (char *)0)
#endif /* HAVE_STRERROR */
static char *auth_errmsg(enum auth_stat);
static char *buf;
static char *
get_buf(void)
{
if (buf == NULL)
buf = (char *)malloc(BUFSIZ);
return (buf);
}
/*
* Print reply error info
*/
char *
clnt_sperror(CLIENT *rpch, char *s)
{
struct rpc_err e;
void clnt_perrno();
char *err;
char *bufstart = get_buf();
char *str = bufstart;
char *strstart = str;
char *strend;
if (str == 0)
return (0);
strend = str + BUFSIZ;
CLNT_GETERR(rpch, &e);
strncpy (str, s, BUFSIZ - 1);
str[BUFSIZ - 1] = 0;
strncat (str, ": ", BUFSIZ - 1 - strlen (bufstart));
str += strlen(str);
strncat (str, clnt_sperrno(e.re_status), BUFSIZ - 1 - strlen (bufstart));
strstart[BUFSIZ - 1] = '\0';
str += strlen(str);
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:
/* 10 for the string */
if (str - bufstart + 10 + strlen(strerror(e.re_errno)) < BUFSIZ)
(void) snprintf(str, strend-str, "; errno = %s",
strerror(e.re_errno));
str += strlen(str);
break;
case RPC_VERSMISMATCH:
/* 33 for the string, 22 for the numbers */
if(str - bufstart + 33 + 22 < BUFSIZ)
(void) snprintf(str, strend-str,
"; low version = %lu, high version = %lu",
(u_long) e.re_vers.low,
(u_long) e.re_vers.high);
str += strlen(str);
break;
case RPC_AUTHERROR:
err = auth_errmsg(e.re_why);
/* 8 for the string */
if(str - bufstart + 8 < BUFSIZ)
(void) snprintf(str, strend-str, "; why = ");
str += strlen(str);
if (err != NULL) {
if(str - bufstart + strlen(err) < BUFSIZ)
(void) snprintf(str, strend-str, "%s",err);
} else {
/* 33 for the string, 11 for the number */
if(str - bufstart + 33 + 11 < BUFSIZ)
(void) snprintf(str, strend-str,
"(unknown authentication error - %d)",
(int) e.re_why);
}
str += strlen(str);
break;
case RPC_PROGVERSMISMATCH:
/* 33 for the string, 22 for the numbers */
if(str - bufstart + 33 + 22 < BUFSIZ)
(void) snprintf(str, strend-str,
"; low version = %lu, high version = %lu",
(u_long) e.re_vers.low,
(u_long) e.re_vers.high);
str += strlen(str);
break;
default: /* unknown */
/* 14 for the string, 22 for the numbers */
if(str - bufstart + 14 + 22 < BUFSIZ)
(void) snprintf(str, strend-str,
"; s1 = %lu, s2 = %lu",
(u_long) e.re_lb.s1,
(u_long) e.re_lb.s2);
str += strlen(str);
break;
}
if (str - bufstart + 1 < BUFSIZ)
(void) snprintf(str, strend-str, "\n");
return(strstart) ;
}
void
clnt_perror(CLIENT *rpch, char *s)
{
(void) fprintf(stderr,"%s",clnt_sperror(rpch,s));
}
struct rpc_errtab {
enum clnt_stat status;
char *message;
};
static struct rpc_errtab 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_UNKNOWNPROTO,
"RPC: Unknown protocol" },
{ RPC_PMAPFAILURE,
"RPC: Port mapper failure" },
{ RPC_PROGNOTREGISTERED,
"RPC: Program not registered"},
{ RPC_FAILED,
"RPC: Failed (unspecified error)"}
};
/*
* This interface for use by clntrpc
*/
char *
clnt_sperrno(enum clnt_stat stat)
{
unsigned int i;
for (i = 0; i < sizeof(rpc_errlist)/sizeof(struct rpc_errtab); i++) {
if (rpc_errlist[i].status == stat) {
return (rpc_errlist[i].message);
}
}
return ("RPC: (unknown error code)");
}
void
clnt_perrno(enum clnt_stat num)
{
(void) fprintf(stderr,"%s",clnt_sperrno(num));
}
char *
clnt_spcreateerror(char *s)
{
char *str = get_buf();
char *strend;
if (str == 0)
return(0);
strend = str+BUFSIZ;
(void) snprintf(str, strend-str, "%s: ", s);
str[BUFSIZ - 1] = '\0';
(void) strncat(str, clnt_sperrno(rpc_createerr.cf_stat), BUFSIZ - 1);
switch (rpc_createerr.cf_stat) {
case RPC_PMAPFAILURE:
(void) strncat(str, " - ", BUFSIZ - 1 - strlen(str));
(void) strncat(str,
clnt_sperrno(rpc_createerr.cf_error.re_status),
BUFSIZ - 1 - strlen(str));
break;
case RPC_SYSTEMERROR:
(void) strncat(str, " - ", BUFSIZ - 1 - strlen(str));
{
const char *m = strerror(rpc_createerr.cf_error.re_errno);
if (m)
(void) strncat(str, m, BUFSIZ - 1 - strlen(str));
else
(void) snprintf(&str[strlen(str)], BUFSIZ - strlen(str),
"Error %d",
rpc_createerr.cf_error.re_errno);
}
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;
}
(void) strncat(str, "\n", BUFSIZ - 1 - strlen(str));
return (str);
}
void
clnt_pcreateerror(char *s)
{
(void) fprintf(stderr,"%s",clnt_spcreateerror(s));
}
struct auth_errtab {
enum auth_stat status;
char *message;
};
static struct auth_errtab auth_errlist[] = {
{ AUTH_OK,
"Authentication OK" },
{ AUTH_BADCRED,
"Invalid client credential" },
{ AUTH_REJECTEDCRED,
"Server rejected credential" },
{ AUTH_BADVERF,
"Invalid client verifier" },
{ AUTH_REJECTEDVERF,
"Server rejected verifier" },
{ AUTH_TOOWEAK,
"Client credential too weak" },
{ AUTH_INVALIDRESP,
"Invalid server verifier" },
{ AUTH_FAILED,
"Failed (unspecified error)" },
};
static char *
auth_errmsg(enum auth_stat stat)
{
unsigned int i;
for (i = 0; i < sizeof(auth_errlist)/sizeof(struct auth_errtab); i++) {
if (auth_errlist[i].status == stat) {
return(auth_errlist[i].message);
}
}
return(NULL);
}