plist_match.c

/*-
 * Copyright (c) 2008-2012 Juan Romero Pardines.
 * 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.
 *
 * 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.
 */

#include <stdio.h>
#include <stdbool.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>

#include "xbps_api_impl.h"

/**
 * @file lib/plist_find.c
 * @brief PropertyList generic routines
 * @defgroup plist PropertyList generic functions
 *
 * These functions manipulate plist files and objects shared by almost
 * all library functions.
 */
bool
xbps_match_virtual_pkg_in_dict(prop_dictionary_t d,
                               const char *str,
                               bool bypattern)
{
        prop_array_t provides;
        bool found = false;

        assert(prop_object_type(d) == PROP_TYPE_DICTIONARY);

        if ((provides = prop_dictionary_get(d, "provides"))) {
                if (bypattern)
                        found = xbps_match_pkgpattern_in_array(provides, str);
                else
                        found = xbps_match_pkgname_in_array(provides, str);
        }
        return found;
}

bool
xbps_match_any_virtualpkg_in_rundeps(prop_array_t rundeps,
                                     prop_array_t provides)
{
        prop_object_t obj, obj2;
        prop_object_iterator_t iter, iter2;
        const char *vpkgver, *pkgpattern;
        char *tmp;

        iter = prop_array_iterator(provides);
        assert(iter);

        while ((obj = prop_object_iterator_next(iter))) {
                tmp = NULL;
                vpkgver = prop_string_cstring_nocopy(obj);
                if (strchr(vpkgver, '_') == NULL) {
                        tmp = xbps_xasprintf("%s_1", vpkgver);
                        vpkgver = tmp;
                }
                iter2 = prop_array_iterator(rundeps);
                assert(iter2);
                while ((obj2 = prop_object_iterator_next(iter2))) {
                        pkgpattern = prop_string_cstring_nocopy(obj2);
                        if (xbps_pkgpattern_match(vpkgver, pkgpattern)) {
                                if (tmp != NULL)
                                        free(tmp);

                                prop_object_iterator_release(iter2);
                                prop_object_iterator_release(iter);
                                return true;
                        }
                }
                prop_object_iterator_release(iter2);
                if (tmp != NULL)
                        free(tmp);
        }
        prop_object_iterator_release(iter);

        return false;
}

static bool
match_string_in_array(prop_array_t array, const char *str, int mode)
{
        prop_object_iterator_t iter;
        prop_object_t obj;
        const char *pkgdep;
        char *curpkgname, *tmp;
        bool found = false;

        assert(prop_object_type(array) == PROP_TYPE_ARRAY);
        assert(str != NULL);

        iter = prop_array_iterator(array);
        assert(iter);

        while ((obj = prop_object_iterator_next(iter))) {
                tmp = NULL;
                if (mode == 0) {
                        /* match by string */
                        if (prop_string_equals_cstring(obj, str)) {
                                found = true;
                                break;
                        }
                } else if (mode == 1) {
                        /* match by pkgname */
                        pkgdep = prop_string_cstring_nocopy(obj);
                        if (strchr(pkgdep, '_') == NULL) {
                                tmp = xbps_xasprintf("%s_1", pkgdep);
                                curpkgname = xbps_pkg_name(tmp);
                                free(tmp);
                        } else {
                                curpkgname = xbps_pkg_name(pkgdep);
                        }
                        if (curpkgname == NULL)
                                break;
                        if (strcmp(curpkgname, str) == 0) {
                                free(curpkgname);
                                found = true;
                                break;
                        }
                        free(curpkgname);
                } else if (mode == 2) {
                        /* match pkgpattern against pkgdep */
                        pkgdep = prop_string_cstring_nocopy(obj);
                        if (strchr(pkgdep, '_') == NULL) {
                                tmp = xbps_xasprintf("%s_1", pkgdep);
                                pkgdep = tmp;
                        }
                        if (xbps_pkgpattern_match(pkgdep, str)) {
                                if (tmp != NULL)
                                        free(tmp);
                                found = true;
                                break;
                        }
                        if (tmp != NULL)
                                free(tmp);

                } else if (mode == 3) {
                        /* match pkgdep against pkgpattern */
                        pkgdep = prop_string_cstring_nocopy(obj);
                        if (strchr(pkgdep, '_') == NULL) {
                                tmp = xbps_xasprintf("%s_1", pkgdep);
                                pkgdep = tmp;
                        }
                        if (xbps_pkgpattern_match(str, pkgdep)) {
                                if (tmp != NULL)
                                        free(tmp);
                                found = true;
                                break;
                        }
                        if (tmp != NULL)
                                free(tmp);
                }
        }
        prop_object_iterator_release(iter);

        return found;
}

bool
xbps_match_string_in_array(prop_array_t array, const char *str)
{
        return match_string_in_array(array, str, 0);
}

bool
xbps_match_pkgname_in_array(prop_array_t array, const char *pkgname)
{
        return match_string_in_array(array, pkgname, 1);
}

bool
xbps_match_pkgpattern_in_array(prop_array_t array, const char *pattern)
{
        return match_string_in_array(array, pattern, 2);
}

bool
xbps_match_pkgdep_in_array(prop_array_t array, const char *pkgver)
{
        return match_string_in_array(array, pkgver, 3);
}