configure.c

/*-
 * Copyright (c) 2017 Rodrigo Osorio <rodrigo@freebsd.org>
 * 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
 *    in this position and unchanged.
 * 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``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(S) 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 <errno.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>

#define PKG_DB_URL  "https://pkg-provides.osorio.me"

static char * url = NULL;
static char * filepath = NULL;

int
config_fetch_on_update()
{
    const char * str = getenv("PROVIDES_FETCH_ON_UPDATE");
    if (str != NULL && strcasecmp(str,"no") == 0) {
        return (0);
    }

    return (1);
}

char *
config_get_remote_srv()
{
    const char * env;

    if (url == NULL) {
        env = getenv("PROVIDES_SRV");
        if (env == NULL) {
            /* DEPRECATED, must be removed */
            env = getenv("PROVIDES_URL");
            if (env) {
                fprintf(stderr, "Warning: PROVIDES_URL environment variable is deprecated, use PROVIDES_SRV instead\n");
            }
        }
        url = strdup((env != NULL) ? env : PKG_DB_URL);
        if (url == NULL) {
            exit(ENOMEM);
        }
    }
    return (url);
}


char *
config_get_filepath()
{
    const char * env;
    if (filepath == NULL) {
        env = getenv("PROVIDES_FILEPATH");
        filepath = env ? strdup(env) : NULL;
    }
    return filepath;
}