package_state.c

/*-
 * Copyright (c) 2009-2013 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"
 
struct state {
        const char *string;
        pkg_state_t number;
};
 
static const struct state states[] = {
        { "unpacked",           XBPS_PKG_STATE_UNPACKED },
        { "installed",          XBPS_PKG_STATE_INSTALLED },
        { "broken",             XBPS_PKG_STATE_BROKEN },
        { "half-removed",       XBPS_PKG_STATE_HALF_REMOVED },
        { "not-installed",      XBPS_PKG_STATE_NOT_INSTALLED },
        { NULL,                 0 }
};
 
 
/**
 * @file lib/package_state.c
 * @brief Package state handling routines
 * @defgroup pkgstates Package state handling functions
 */
 
static int
set_new_state(xbps_dictionary_t dict, pkg_state_t state)
{
        const struct state *stp;
 
        assert(xbps_object_type(dict) == XBPS_TYPE_DICTIONARY);
 
        for (stp = states; stp->string != NULL; stp++)
                if (state == stp->number)
                        break;
 
        if (stp->string == NULL)
                return EINVAL;
 
        if (!xbps_dictionary_set_cstring_nocopy(dict, "state", stp->string))
                return EINVAL;
 
        return 0;
}
 
static pkg_state_t
get_state(xbps_dictionary_t dict)
{
        const struct state *stp;
        const char *state_str;
 
        assert(xbps_object_type(dict) == XBPS_TYPE_DICTIONARY);
 
        if (!xbps_dictionary_get_cstring_nocopy(dict,
            "state", &state_str))
                return 0;
 
        for (stp = states; stp->string != NULL; stp++)
                if (strcmp(state_str, stp->string) == 0)
                        break;
 
        return stp->number;
}
 
int
xbps_pkg_state_installed(struct xbps_handle *xhp,
                         const char *pkgver,
                         pkg_state_t *state)
{
        xbps_dictionary_t pkgd;
 
        assert(pkgver != NULL);
        assert(state != NULL);
 
        pkgd = xbps_pkgdb_get_pkg(xhp, pkgver);
        if (pkgd == NULL)
                return ENOENT;
 
        *state = get_state(pkgd);
        if (*state == 0)
                return EINVAL;
 
        return 0;
}
 
int
xbps_pkg_state_dictionary(xbps_dictionary_t dict, pkg_state_t *state)
{
        assert(xbps_object_type(dict) == XBPS_TYPE_DICTIONARY);
        assert(state != NULL);
 
        if ((*state = get_state(dict)) == 0)
                return EINVAL;
 
        return 0;
}
 
int
xbps_set_pkg_state_dictionary(xbps_dictionary_t dict, pkg_state_t state)
{
        assert(xbps_object_type(dict) == XBPS_TYPE_DICTIONARY);
 
        return set_new_state(dict, state);
}
 
int
xbps_set_pkg_state_installed(struct xbps_handle *xhp,
                             const char *pkgver,
                             pkg_state_t state)
{
        xbps_dictionary_t pkgd;
        char pkgname[XBPS_NAME_SIZE];
        int rv = 0;
 
        assert(pkgver != NULL);
 
        pkgd = xbps_pkgdb_get_pkg(xhp, pkgver);
        if (pkgd == NULL) {
                pkgd = xbps_dictionary_create();
                if (pkgd == NULL)
                        return ENOMEM;
 
                if (!xbps_dictionary_set_cstring_nocopy(pkgd,
                    "pkgver", pkgver)) {
                        xbps_object_release(pkgd);
                        return EINVAL;
                }
                if ((rv = set_new_state(pkgd, state)) != 0) {
                        xbps_object_release(pkgd);
                        return rv;
                }
                if (!xbps_pkg_name(pkgname, XBPS_NAME_SIZE, pkgver)) {
                        abort();
                }
                if (!xbps_dictionary_set(xhp->pkgdb, pkgname, pkgd)) {
                        xbps_object_release(pkgd);
                        return EINVAL;
                }
                xbps_object_release(pkgd);
        } else {
                if ((rv = set_new_state(pkgd, state)) != 0)
                        return rv;
 
                if (!xbps_pkg_name(pkgname, XBPS_NAME_SIZE, pkgver)) {
                        abort();
                }
                if (!xbps_dictionary_set(xhp->pkgdb, pkgname, pkgd)) {
                        return EINVAL;
                }
        }
 
        return rv;
}