void-packages/lib/plist.c

243 lines
5.6 KiB
C

/*-
* Copyright (c) 2008 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 <limits.h>
#include <prop/proplib.h>
#include <xbps_api.h>
bool
xbps_add_obj_to_dict(prop_dictionary_t dict, prop_object_t obj,
const char *key)
{
assert(dict != NULL);
assert(obj != NULL);
assert(key != NULL);
if (!prop_dictionary_set(dict, key, obj)) {
prop_object_release(dict);
return false;
}
prop_object_release(obj);
return true;
}
bool
xbps_add_obj_to_array(prop_array_t array, prop_object_t obj)
{
assert(array != NULL);
assert(obj != NULL);
if (!prop_array_add(array, obj)) {
prop_object_release(array);
return false;
}
prop_object_release(obj);
return true;
}
int
xbps_callback_array_iter_in_dict(prop_dictionary_t dict, const char *key,
int (*func)(prop_object_t, void *, bool *),
void *arg)
{
prop_object_iterator_t iter;
prop_object_t obj;
int rv = 0;
bool run, cbloop_done;
assert(dict != NULL);
assert(key != NULL);
assert(func != NULL);
run = cbloop_done = false;
iter = xbps_get_array_iter_from_dict(dict, key);
if (iter == NULL)
return EINVAL;
while ((obj = prop_object_iterator_next(iter))) {
rv = (*func)(obj, arg, &cbloop_done);
if (rv == 0 && cbloop_done)
break;
}
prop_object_iterator_release(iter);
return rv;
}
prop_dictionary_t
xbps_find_pkg_from_plist(const char *plist, const char *pkgname)
{
prop_dictionary_t dict;
prop_dictionary_t obj, res;
assert(plist != NULL);
assert(pkgname != NULL);
dict = prop_dictionary_internalize_from_file(plist);
if (dict == NULL) {
errno = ENOENT;
return NULL;
}
obj = xbps_find_pkg_in_dict(dict, pkgname);
if (obj == NULL) {
prop_object_release(dict);
errno = ENOENT;
return NULL;
}
res = prop_dictionary_copy(obj);
prop_object_release(dict);
return res;
}
prop_dictionary_t
xbps_find_pkg_in_dict(prop_dictionary_t dict, const char *pkgname)
{
prop_object_iterator_t iter;
prop_object_t obj;
const char *dpkgn;
assert(dict != NULL);
assert(pkgname != NULL);
iter = xbps_get_array_iter_from_dict(dict, "packages");
if (iter == NULL)
return NULL;
while ((obj = prop_object_iterator_next(iter))) {
prop_dictionary_get_cstring_nocopy(obj, "pkgname", &dpkgn);
if (strcmp(dpkgn, pkgname) == 0)
break;
}
prop_object_iterator_release(iter);
return obj;
}
bool
xbps_find_string_in_array(prop_array_t array, const char *val)
{
prop_object_iterator_t iter;
prop_object_t obj;
assert(array != NULL);
assert(val != NULL);
iter = prop_array_iterator(array);
if (iter == NULL)
return false;
while ((obj = prop_object_iterator_next(iter)) != NULL) {
if (prop_object_type(obj) != PROP_TYPE_STRING)
continue;
if (prop_string_equals_cstring(obj, val)) {
prop_object_iterator_release(iter);
return true;
}
}
prop_object_iterator_release(iter);
return false;
}
prop_object_iterator_t
xbps_get_array_iter_from_dict(prop_dictionary_t dict, const char *key)
{
prop_array_t array;
assert(dict != NULL);
assert(key != NULL);
array = prop_dictionary_get(dict, key);
if (array == NULL || prop_object_type(array) != PROP_TYPE_ARRAY)
return NULL;
return prop_array_iterator(array);
}
bool
xbps_remove_pkg_dict_from_file(const char *pkg, const char *plist)
{
prop_dictionary_t pdict;
prop_array_t array;
prop_object_t obj;
prop_object_iterator_t iter;
const char *curpkg;
size_t i = 0;
assert(pkg != NULL);
assert(plist != NULL);
pdict = prop_dictionary_internalize_from_file(plist);
if (pdict == NULL)
return false;
array = prop_dictionary_get(pdict, "packages");
if (array == NULL || prop_object_type(array) != PROP_TYPE_ARRAY)
return false;
iter = prop_array_iterator(array);
if (iter == NULL)
return false;
/* Iterate over the array of dictionaries to find its index. */
while ((obj = prop_object_iterator_next(iter))) {
prop_dictionary_get_cstring_nocopy(obj, "pkgname", &curpkg);
if ((curpkg && (strcmp(curpkg, pkg) == 0))) {
/* Found, remove it and write plist file. */
prop_array_remove(array, i);
prop_object_iterator_release(iter);
goto wr_plist;
}
i++;
}
prop_object_iterator_release(iter);
prop_object_release(pdict);
errno = ENODEV;
return false;
wr_plist:
if (!prop_dictionary_externalize_to_file(pdict, plist)) {
prop_object_release(pdict);
return false;
}
prop_object_release(pdict);
return true;
}