bin/tests/wire_test.c

	wire_test.c revision 9c3531d72aeaad6c5f01efe6a1c82023e1379e4d
/*
 * Copyright (C) 1999, 2000  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.
 */

/* $Id: wire_test.c,v 1.50 2000/06/22 21:50:58 tale Exp $ */

#include <config.h>

#include <stdlib.h>

#include <isc/buffer.h>
#include <isc/mem.h>
#include <isc/string.h>
#include <isc/util.h>

#include <dns/result.h>

#include "printmsg.h"

static inline void
CHECKRESULT(isc_result_t result, const char *msg) {
    if (result != ISC_R_SUCCESS) {
        printf("%s: %s\n", msg, dns_result_totext(result));

        exit(1);
    }
}

static int
fromhex(char c) {
    if (c >= '0' && c <= '9')
        return (c - '0');
    else if (c >= 'a' && c <= 'f')
        return (c - 'a' + 10);
    else if (c >= 'A' && c <= 'F')
        return (c - 'A' + 10);

    printf("bad input format: %02x\n", c);
    exit(3);
    /* NOTREACHED */
}

int
main(int argc, char *argv[]) {
    char *rp, *wp;
    unsigned char *bp;
    isc_buffer_t source;
    size_t len, i;
    int n;
    FILE *f;
    isc_boolean_t need_close = ISC_FALSE;
    unsigned char b[1000];
    char s[1000];
    dns_message_t *message;
    isc_result_t result;
    isc_mem_t *mctx;

    mctx = NULL;
    RUNTIME_CHECK(isc_mem_create(0, 0, &mctx) == ISC_R_SUCCESS);

    if (argc > 1) {
        f = fopen(argv[1], "r");
        if (f == NULL) {
            printf("fopen failed\n");
            exit(1);
        }
        need_close = ISC_TRUE;
    } else
        f = stdin;

    bp = b;
    while (fgets(s, sizeof s, f) != NULL) {
        rp = s;
        wp = s;
        len = 0;
        while (*rp != '\0') {
            if (*rp == '#')
                break;
            if (*rp != ' ' && *rp != '\t' &&
                *rp != '\r' && *rp != '\n') {
                *wp++ = *rp;
                len++;
            }
            rp++;
        }
        if (len == 0)
            break;
        if (len % 2 != 0) {
            printf("bad input format: %d\n", len);
            exit(1);
        }
        if (len > (sizeof b) * 2) {
            printf("input too long\n");
            exit(2);
        }
        rp = s;
        for (i = 0; i < len; i += 2) {
            n = fromhex(*rp++);
            n *= 16;
            n += fromhex(*rp++);
            *bp++ = n;
        }
    }

    if (need_close)
        fclose(f);

    isc_buffer_init(&source, b, sizeof(b));
    isc_buffer_add(&source, bp - b);

    message = NULL;
    result = dns_message_create(mctx, DNS_MESSAGE_INTENTPARSE, &message);
    CHECKRESULT(result, "dns_message_create failed");

    result = dns_message_parse(message, &source, ISC_FALSE);
    CHECKRESULT(result, "dns_message_parse failed");

    result = printmessage(message);
    CHECKRESULT(result, "printmessage() failed");

    isc_mem_stats(mctx, stdout);

    /*
     * XXXMLG
     * Changing this here is a hack, and should not be done in reasonable
     * application code, ever.
     */
    message->from_to_wire = DNS_MESSAGE_INTENTRENDER;
    memset(b, 0, sizeof(b));
    isc_buffer_clear(&source);

    for (i = 0 ; i < DNS_SECTION_MAX ; i++)
        message->counts[i] = 0;  /* Another hack XXX */

    result = dns_message_renderbegin(message, &source);
    CHECKRESULT(result, "dns_message_renderbegin() failed");

    result = dns_message_rendersection(message, DNS_SECTION_QUESTION, 0);
    CHECKRESULT(result, "dns_message_rendersection(QUESTION) failed");

    result = dns_message_rendersection(message, DNS_SECTION_ANSWER, 0);
    CHECKRESULT(result, "dns_message_rendersection(ANSWER) failed");

    result = dns_message_rendersection(message, DNS_SECTION_AUTHORITY, 0);
    CHECKRESULT(result, "dns_message_rendersection(AUTHORITY) failed");

    result = dns_message_rendersection(message, DNS_SECTION_ADDITIONAL, 0);
    CHECKRESULT(result, "dns_message_rendersection(ADDITIONAL) failed");

    dns_message_renderend(message);

    message->from_to_wire = DNS_MESSAGE_INTENTPARSE;
    dns_message_destroy(&message);

    printf("Message rendered.\n");
    isc_mem_stats(mctx, stdout);

    result = dns_message_create(mctx, DNS_MESSAGE_INTENTPARSE, &message);
    CHECKRESULT(result, "dns_message_create failed");

    result = dns_message_parse(message, &source, ISC_FALSE);
    CHECKRESULT(result, "dns_message_parse failed");

    result = printmessage(message);
    CHECKRESULT(result, "printmessage() failed");

    dns_message_destroy(&message);

    isc_mem_stats(mctx, stdout);
    isc_mem_destroy(&mctx);

    return (0);
}