HelenOS sources

root/uspace/app/loc/loc.c

DEFINITIONS

1. show_cat
2. list_svcs_by_cat
3. print_syntax
4. main

/*
 * Copyright (c) 2011 Jiri Svoboda
 * 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.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
 */

/** @addtogroup loc
 * @{
 */
/** @file loc.c Print information from location service.
 */

#include <errno.h>
#include <loc.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <inttypes.h>
#include <str.h>

#define NAME "loc"

static errno_t show_cat(const char *cat_name, category_id_t cat_id)
{
        service_id_t *svc_ids;
        size_t svc_cnt;
        char *svc_name;
        char *server_name;
        errno_t rc;
        size_t j;

        printf("%s:\n", cat_name);

        rc = loc_category_get_svcs(cat_id, &svc_ids, &svc_cnt);
        if (rc != EOK) {
                printf(NAME ": Failed getting list of services in "
                    "category %s, skipping.\n", cat_name);
                return rc;
        }

        for (j = 0; j < svc_cnt; j++) {
                rc = loc_service_get_name(svc_ids[j], &svc_name);
                if (rc != EOK) {
                        printf(NAME ": Unknown service name (SID %"
                            PRIun ").\n", svc_ids[j]);
                        continue;
                }

                rc = loc_service_get_server_name(svc_ids[j], &server_name);
                if (rc != EOK && rc != EINVAL) {
                        free(svc_name);
                        printf(NAME ": Unknown service name (SID %"
                            PRIun ").\n", svc_ids[j]);
                        continue;
                }

                if (rc == EOK)
                        printf("\t%s : %s\n", svc_name, server_name);
                else
                        printf("\t%s\n", svc_name);

                free(svc_name);
                free(server_name);
        }

        free(svc_ids);
        return EOK;
}

static errno_t list_svcs_by_cat(void)
{
        category_id_t *cat_ids;
        size_t cat_cnt;

        size_t i;
        char *cat_name;
        errno_t rc;

        rc = loc_get_categories(&cat_ids, &cat_cnt);
        if (rc != EOK) {
                printf(NAME ": Error getting list of categories.\n");
                return rc;
        }

        for (i = 0; i < cat_cnt; i++) {
                rc = loc_category_get_name(cat_ids[i], &cat_name);
                if (rc != EOK)
                        cat_name = str_dup("<unknown>");

                if (cat_name == NULL) {
                        printf(NAME ": Error allocating memory.\n");
                        free(cat_ids);
                        return rc;
                }

                rc = show_cat(cat_name, cat_ids[i]);
                (void) rc;

                free(cat_name);
        }

        free(cat_ids);
        return EOK;
}

static void print_syntax(void)
{
        printf("syntax:\n"
            "\t" NAME "                      List categories and services "
            "they contain\n"
            "\t" NAME " show-cat <category>  List services in category\n");
}

int main(int argc, char *argv[])
{
        errno_t rc;
        char *cmd;
        char *cat_name;
        category_id_t cat_id;

        if (argc <= 1) {
                rc = list_svcs_by_cat();
                if (rc != EOK)
                        return 1;
                return 0;
        }

        cmd = argv[1];
        if (str_cmp(cmd, "show-cat") == 0) {
                if (argc < 3) {
                        printf("Argument missing.\n");
                        print_syntax();
                        return 1;
                }

                cat_name = argv[2];
                rc = loc_category_get_id(cat_name, &cat_id, 0);
                if (rc != EOK) {
                        printf("Error looking up category '%s'.\n", cat_name);
                        return 1;
                }

                rc = show_cat(cat_name, cat_id);
                if (rc != EOK)
                        return 1;
        } else {
                printf("Invalid command '%s'\n", cmd);
                print_syntax();
                return 1;
        }

        return 0;
}

/** @}
 */