source: rtems/cpukit/librpc/src/rpc/clnt_perror.c @ 37da47a

/*
 * 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 = "$FreeBSD: src/lib/libc/rpc/clnt_perror.c,v 1.11 1999/08/28 00:00:35 peter Exp $";
#endif

/*
 * clnt_perror.c
 *
 * Copyright (C) 1984, Sun Microsystems, Inc.
 *
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#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>

static char *auth_errmsg(enum auth_stat stat);
#define CLNT_PERROR_BUFLEN 256

#define buf (rtems_rpc_task_variables->clnt_perror_buf)

static char *
_buf(void)
{

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

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

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

        (void) sprintf(str, "%s: %s", s, 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) snprintf(str, CLNT_PERROR_BUFLEN - (str - strstart),
                        "; errno = %s\n", strerror(e.re_errno));
                break;

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

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

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

        default:        /* unknown */
                (void) sprintf(str,
                        "; s1 = %lu, s2 = %lu\n",
                        (long)e.re_lb.s1, (long)e.re_lb.s2);
                break;
        }
        strstart[CLNT_PERROR_BUFLEN-2] = '\n';
        strstart[CLNT_PERROR_BUFLEN-1] = '\0';
        return(strstart) ;
}

void
clnt_perror(
        CLIENT *rpch,
        const char *s)
{
        (void) fprintf(stderr,"%s\n",clnt_sperror(rpch,s));
}


static const char *const rpc_errlist[] = {
        "RPC: Success",                         /*  0 - RPC_SUCCESS */
        "RPC: Can't encode arguments",          /*  1 - RPC_CANTENCODEARGS */
        "RPC: Can't decode result",             /*  2 - RPC_CANTDECODERES */
        "RPC: Unable to send",                  /*  3 - RPC_CANTSEND */
        "RPC: Unable to receive",               /*  4 - RPC_CANTRECV */
        "RPC: Timed out",                       /*  5 - RPC_TIMEDOUT */
        "RPC: Incompatible versions of RPC",    /*  6 - RPC_VERSMISMATCH */
        "RPC: Authentication error",            /*  7 - RPC_AUTHERROR */
        "RPC: Program unavailable",             /*  8 - RPC_PROGUNAVAIL */
        "RPC: Program/version mismatch",        /*  9 - RPC_PROGVERSMISMATCH */
        "RPC: Procedure unavailable",           /* 10 - RPC_PROCUNAVAIL */
        "RPC: Server can't decode arguments",   /* 11 - RPC_CANTDECODEARGS */
        "RPC: Remote system error",             /* 12 - RPC_SYSTEMERROR */
        "RPC: Unknown host",                    /* 13 - RPC_UNKNOWNHOST */
        "RPC: Port mapper failure",             /* 14 - RPC_PMAPFAILURE */
        "RPC: Program not registered",          /* 15 - RPC_PROGNOTREGISTERED */
        "RPC: Failed (unspecified error)",      /* 16 - RPC_FAILED */
        "RPC: Unknown protocol"                 /* 17 - RPC_UNKNOWNPROTO */
};


/*
 * This interface for use by clntrpc
 */
char *
clnt_sperrno(
        enum clnt_stat stat)
{
        unsigned int errnum = stat;

        if (errnum < (sizeof(rpc_errlist)/sizeof(rpc_errlist[0])))
                return (char *)rpc_errlist[errnum];

        return ("RPC: (unknown error code)");
}

void
clnt_perrno(
        enum clnt_stat num)
{
        (void) fprintf(stderr,"%s\n",clnt_sperrno(num));
}


char *
clnt_spcreateerror(
        const char *s)
{
        char *str = _buf();

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

        case RPC_SYSTEMERROR:
                (void) snprintf(str, CLNT_PERROR_BUFLEN, "%s: %s - %s\n", s,
                    clnt_sperrno(rpc_createerr.cf_stat),
                    strerror(rpc_createerr.cf_error.re_errno));
                break;
        default:
                (void) snprintf(str, CLNT_PERROR_BUFLEN, "%s: %s\n", s,
                clnt_sperrno(rpc_createerr.cf_stat));
                break;
        }
        str[CLNT_PERROR_BUFLEN-2] = '\n';
        str[CLNT_PERROR_BUFLEN-1] = '\0';
        return (str);
}

void
clnt_pcreateerror(
        const char *s)
{
        (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 < (sizeof(auth_errlist)/sizeof(auth_errlist[0])))
                return (char *)auth_errlist[errnum];

        return(NULL);
}