lib/librpc/rpc/clnt_perror.c

/*
 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
 * unrestricted use provided that this legend is included on all tape
 * media and as a part of the software program in whole or part.  Users
 * may copy or modify Sun RPC without charge, but are not authorized
 * to license or distribute it to anyone else except as part of a product or
 * program developed by the user.
 *
 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
 *
 * Sun RPC is provided with no support and without any obligation on the
 * part of Sun Microsystems, Inc. to assist in its use, correction,
 * modification or enhancement.
 *
 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
 * OR ANY PART THEREOF.
 *
 * In no event will Sun Microsystems, Inc. be liable for any lost revenue
 * or profits or other special, indirect and consequential damages, even if
 * Sun has been advised of the possibility of such damages.
 *
 * Sun Microsystems, Inc.
 * 2550 Garcia Avenue
 * Mountain View, California  94043
 */

#if defined(LIBC_SCCS) && !defined(lint)
/*static char *sccsid = "from: @(#)clnt_perror.c 1.15 87/10/07 Copyr 1984 Sun Micro";*/
/*static char *sccsid = "from: @(#)clnt_perror.c        2.1 88/07/29 4.0 RPCSRC";*/
static char *rcsid = "$Id: clnt_perror.c,v 1.4 1993/08/26 00:53:16 jtc Exp $";
#endif

/*
 * clnt_perror.c
 *
 * Copyright (C) 1984, Sun Microsystems, Inc.
 *
 */
#include <stdio.h>
#include <string.h>
#include <rpc/rpc.h>
#include <rpc/types.h>
#include <rpc/auth.h>
#include <rpc/clnt.h>

static char *auth_errmsg();

static char *buf;

static char *
_buf()
{

        if (buf == 0)
                buf = (char *)malloc(256);
        return (buf);
}

/*
 * Print reply error info
 */
char *
clnt_sperror(rpch, s)
        CLIENT *rpch;
        char *s;
{
        struct rpc_err e;
        void clnt_perrno();
        char *err;
        char *str = _buf();
        char *strstart = str;

        if (str == 0)
                return (0);
        CLNT_GETERR(rpch, &e);

        (void) sprintf(str, "%s: ", s);
        str += strlen(str);

        (void) strcpy(str, clnt_sperrno(e.re_status));
        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:
                (void) sprintf(str, "; errno = %s",
                    strerror(e.re_errno));
                str += strlen(str);
                break;

        case RPC_VERSMISMATCH:
                (void) sprintf(str,
                        "; low version = %lu, high version = %lu",
                        e.re_vers.low, e.re_vers.high);
                str += strlen(str);
                break;

        case RPC_AUTHERROR:
                err = auth_errmsg(e.re_why);
                (void) sprintf(str,"; why = ");
                str += strlen(str);
                if (err != NULL) {
                        (void) sprintf(str, "%s",err);
                } else {
                        (void) sprintf(str,
                                "(unknown authentication error - %d)",
                                (int) e.re_why);
                }
                str += strlen(str);
                break;

        case RPC_PROGVERSMISMATCH:
                (void) sprintf(str,
                        "; low version = %lu, high version = %lu",
                        e.re_vers.low, e.re_vers.high);
                str += strlen(str);
                break;

        default:        /* unknown */
                (void) sprintf(str,
                        "; s1 = %lu, s2 = %lu",
                        e.re_lb.s1, e.re_lb.s2);
                str += strlen(str);
                break;
        }
        (void) sprintf(str, "\n");
        return(strstart) ;
}

void
clnt_perror(rpch, s)
        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(stat)
        enum clnt_stat stat;
{
        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(num)
        enum clnt_stat num;
{
        (void) fprintf(stderr,"%s",clnt_sperrno(num));
}


char *
clnt_spcreateerror(s)
        char *s;
{
        extern int sys_nerr;
        char *str = _buf();

        if (str == 0)
                return(0);
        (void) sprintf(str, "%s: ", s);
        (void) strcat(str, clnt_sperrno(rpc_createerr.cf_stat));
        switch (rpc_createerr.cf_stat) {
        case RPC_PMAPFAILURE:
                (void) strcat(str, " - ");
                (void) strcat(str,
                    clnt_sperrno(rpc_createerr.cf_error.re_status));
                break;

        case RPC_SYSTEMERROR:
                (void) strcat(str, " - ");
                if (rpc_createerr.cf_error.re_errno > 0
                    && rpc_createerr.cf_error.re_errno < sys_nerr)
                        (void) strcat(str,
                            strerror(rpc_createerr.cf_error.re_errno));
                else
                        (void) sprintf(&str[strlen(str)], "Error %d",
                            rpc_createerr.cf_error.re_errno);
                break;
        }
        (void) strcat(str, "\n");
        return (str);
}

void
clnt_pcreateerror(s)
        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(stat)
        enum auth_stat stat;
{
        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);
}