/*
 * Copyright (c) 2002 Kungliga Tekniska Högskolan
 * (Royal Institute of Technology, Stockholm, Sweden).
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. 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.
 *
 * 3. Neither the name of KTH 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 KTH AND ITS 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 KTH OR ITS 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 "krb5_locl.h"
#include <err.h>

enum { MAX_COMPONENTS = 3 };

static struct testcase {
    const char *input_string;
    const char *output_string;
    krb5_realm realm;
    unsigned ncomponents;
    char *comp_val[MAX_COMPONENTS];
    int realmp;
} tests[] = {
    {"", "@", "", 1, {""}, FALSE},
    {"a", "a@", "", 1, {"a"}, FALSE},
    {"\\n", "\\n@", "", 1, {"\n"}, FALSE},
    {"\\ ", "\\ @", "", 1, {" "}, FALSE},
    {"\\t", "\\t@", "", 1, {"\t"}, FALSE},
    {"\\b", "\\b@", "", 1, {"\b"}, FALSE},
    {"\\\\", "\\\\@", "", 1, {"\\"}, FALSE},
    {"\\/", "\\/@", "", 1, {"/"}, FALSE},
    {"\\@", "\\@@", "", 1, {"@"}, FALSE},
    {"@", "@", "", 1, {""}, TRUE},
    {"a/b", "a/b@", "", 2, {"a", "b"}, FALSE},
    {"a/", "a/@", "", 2, {"a", ""}, FALSE},
    {"a\\//\\/", "a\\//\\/@", "", 2, {"a/", "/"}, FALSE},
    {"/a", "/a@", "", 2, {"", "a"}, FALSE},
    {"\\@@\\@", "\\@@\\@", "@", 1, {"@"}, TRUE},
    {"a/b/c", "a/b/c@", "", 3, {"a", "b", "c"}, FALSE},
    {NULL, NULL, "", 0, { NULL }, FALSE}};

int
main(int argc, char **argv)
{
    struct testcase *t;
    krb5_context context;
    krb5_error_code ret;
    int val = 0;

    ret = krb5_init_context (&context);
    if (ret)
        errx (1, "krb5_init_context failed: %d", ret);

    /* to enable realm-less principal name above */

    krb5_set_default_realm(context, "");

    for (t = tests; t->input_string; ++t) {
        krb5_principal princ;
        int i, j;
        char name_buf[1024];
        char *s;

        ret = krb5_parse_name(context, t->input_string, &princ);
        if (ret)
            krb5_err (context, 1, ret, "krb5_parse_name %s",
                      t->input_string);
        if (strcmp (t->realm, princ->realm) != 0) {
            printf ("wrong realm (\"%s\" should be \"%s\")"
                    " for \"%s\"\n",
                    princ->realm, t->realm,
                    t->input_string);
            val = 1;
        }

        if (t->ncomponents != princ->name.name_string.len) {
            printf ("wrong number of components (%u should be %u)"
                    " for \"%s\"\n",
                    princ->name.name_string.len, t->ncomponents,
                    t->input_string);
            val = 1;
        } else {
            for (i = 0; i < t->ncomponents; ++i) {
                if (strcmp(t->comp_val[i],
                           princ->name.name_string.val[i]) != 0) {
                    printf ("bad component %d (\"%s\" should be \"%s\")"
                            " for \"%s\"\n",
                            i,
                            princ->name.name_string.val[i],
                            t->comp_val[i],
                            t->input_string);
                    val = 1;
                }
            }
        }
        for (j = 0; j < strlen(t->output_string); ++j) {
            ret = krb5_unparse_name_fixed(context, princ,
                                          name_buf, j);
            if (ret != ERANGE) {
                printf ("unparse_name %s with length %d should have failed\n",
                        t->input_string, j);
                val = 1;
                break;
            }
        }
        ret = krb5_unparse_name_fixed(context, princ,
                                      name_buf, sizeof(name_buf));
        if (ret)
            krb5_err (context, 1, ret, "krb5_unparse_name_fixed");

        if (strcmp (t->output_string, name_buf) != 0) {
            printf ("failed comparing the re-parsed"
                    " (\"%s\" should be \"%s\")\n",
                    name_buf, t->output_string);
            val = 1;
        }

        ret = krb5_unparse_name(context, princ, &s);
        if (ret)
            krb5_err (context, 1, ret, "krb5_unparse_name");

        if (strcmp (t->output_string, s) != 0) {
            printf ("failed comparing the re-parsed"
                    " (\"%s\" should be \"%s\"\n",
                    s, t->output_string);
            val = 1;
        }
        free(s);

        if (!t->realmp) {
            for (j = 0; j < strlen(t->input_string); ++j) {
                ret = krb5_unparse_name_fixed_short(context, princ,
                                                    name_buf, j);
                if (ret != ERANGE) {
                    printf ("unparse_name_short %s with length %d"
                            " should have failed\n",
                            t->input_string, j);
                    val = 1;
                    break;
                }
            }
            ret = krb5_unparse_name_fixed_short(context, princ,
                                                name_buf, sizeof(name_buf));
            if (ret)
                krb5_err (context, 1, ret, "krb5_unparse_name_fixed");

            if (strcmp (t->input_string, name_buf) != 0) {
                printf ("failed comparing the re-parsed"
                        " (\"%s\" should be \"%s\")\n",
                        name_buf, t->input_string);
                val = 1;
            }

            ret = krb5_unparse_name_short(context, princ, &s);
            if (ret)
                krb5_err (context, 1, ret, "krb5_unparse_name_short");

            if (strcmp (t->input_string, s) != 0) {
                printf ("failed comparing the re-parsed"
                        " (\"%s\" should be \"%s\"\n",
                        s, t->input_string);
                val = 1;
            }
            free(s);
        }
        krb5_free_principal (context, princ);
    }
    krb5_free_context(context);
    return val;
}