xbps/lib/plist.c

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/*-
* Copyright (c) 2008-2011 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.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_add_obj_to_dict(prop_dictionary_t dict, prop_object_t obj,
const char *key)
{
assert(prop_object_type(dict) == PROP_TYPE_DICTIONARY);
assert(obj != NULL);
assert(key != NULL);
if (!prop_dictionary_set(dict, key, obj)) {
prop_object_release(dict);
errno = EINVAL;
return false;
}
prop_object_release(obj);
return true;
}
bool
xbps_add_obj_to_array(prop_array_t array, prop_object_t obj)
{
assert(prop_object_type(array) == PROP_TYPE_ARRAY);
assert(obj != NULL);
if (!prop_array_add(array, obj)) {
prop_object_release(array);
errno = EINVAL;
return false;
}
prop_object_release(obj);
return true;
}
int
xbps_callback_array_iter(prop_array_t array,
int (*fn)(prop_object_t, void *, bool *),
void *arg)
{
prop_object_t obj;
prop_object_iterator_t iter;
int rv = 0;
bool loop_done = false;
assert(prop_object_type(array) == PROP_TYPE_ARRAY);
assert(fn != NULL);
iter = prop_array_iterator(array);
if (iter == NULL)
return ENOMEM;
while ((obj = prop_object_iterator_next(iter)) != NULL) {
rv = (*fn)(obj, arg, &loop_done);
if (rv != 0 || loop_done)
break;
}
prop_object_iterator_release(iter);
return rv;
}
int
xbps_callback_array_iter_in_dict(prop_dictionary_t dict,
const char *key,
int (*fn)(prop_object_t, void *, bool *),
void *arg)
{
prop_object_iterator_t iter;
prop_object_t obj;
int rv = 0;
bool cbloop_done = false;
assert(prop_object_type(dict) == PROP_TYPE_DICTIONARY);
assert(key != NULL);
assert(fn != NULL);
iter = xbps_array_iter_from_dict(dict, key);
if (iter == NULL)
return EINVAL;
while ((obj = prop_object_iterator_next(iter))) {
rv = (*fn)(obj, arg, &cbloop_done);
if (rv != 0 || cbloop_done)
break;
}
prop_object_iterator_release(iter);
return rv;
}
int
xbps_callback_array_iter_reverse_in_dict(prop_dictionary_t dict,
const char *key,
int (*fn)(prop_object_t, void *, bool *),
void *arg)
{
prop_array_t array;
prop_object_t obj;
int rv = 0;
bool cbloop_done = false;
unsigned int cnt = 0;
assert(prop_object_type(dict) == PROP_TYPE_DICTIONARY);
assert(key != NULL);
assert(fn != NULL);
array = prop_dictionary_get(dict, key);
if (prop_object_type(array) != PROP_TYPE_ARRAY) {
xbps_dbg_printf("invalid key '%s' for dictionary", key);
return EINVAL;
}
if ((cnt = prop_array_count(array)) == 0)
return 0;
while (cnt--) {
obj = prop_array_get(array, cnt);
rv = (*fn)(obj, arg, &cbloop_done);
if (rv != 0 || cbloop_done)
break;
}
return rv;
}
prop_object_iterator_t
xbps_array_iter_from_dict(prop_dictionary_t dict, const char *key)
{
prop_array_t array;
assert(prop_object_type(dict) == PROP_TYPE_DICTIONARY);
assert(key != NULL);
array = prop_dictionary_get(dict, key);
if (prop_object_type(array) != PROP_TYPE_ARRAY) {
errno = EINVAL;
return NULL;
}
return prop_array_iterator(array);
}
int
xbps_array_replace_dict_by_name(prop_array_t array,
prop_dictionary_t dict,
const char *pkgname)
{
prop_object_t obj;
size_t i;
const char *curpkgname;
assert(prop_object_type(array) == PROP_TYPE_ARRAY);
assert(prop_object_type(dict) == PROP_TYPE_DICTIONARY);
assert(pkgname != NULL);
for (i = 0; i < prop_array_count(array); i++) {
obj = prop_array_get(array, i);
prop_dictionary_get_cstring_nocopy(obj, "pkgname", &curpkgname);
if (strcmp(curpkgname, pkgname) == 0) {
/* pkgname match, we know the index */
if (!prop_array_set(array, i, dict))
return EINVAL;
return 0;
}
}
/* no match */
return ENOENT;
}
prop_dictionary_t
xbps_dictionary_from_metadata_plist(const char *pkgname,
const char *plist)
{
struct xbps_handle *xhp;
prop_dictionary_t pkgd, plistd = NULL;
const char *rpkgname;
char *plistf;
assert(pkgname != NULL);
assert(plist != NULL);
xhp = xbps_handle_get();
plistf = xbps_xasprintf("%s/%s/metadata/%s/%s",
prop_string_cstring_nocopy(xhp->rootdir),
XBPS_META_PATH, pkgname, plist);
if (plistf == NULL)
return NULL;
if (access(plistf, R_OK) == -1) {
pkgd = xbps_find_virtualpkg_dict_installed(pkgname, false);
if (pkgd) {
prop_dictionary_get_cstring_nocopy(pkgd, "pkgname", &rpkgname);
prop_object_release(pkgd);
pkgname = rpkgname;
}
free(plistf);
plistf = xbps_xasprintf("%s/%s/metadata/%s/%s",
prop_string_cstring_nocopy(xhp->rootdir),
XBPS_META_PATH, pkgname, plist);
if (plistf == NULL)
return NULL;
}
plistd = prop_dictionary_internalize_from_zfile(plistf);
free(plistf);
if (plistd == NULL) {
xbps_dbg_printf("cannot read from plist file %s for %s: %s\n",
plist, pkgname, strerror(errno));
return NULL;
}
return plistd;
}