vp-build/lib/repository.c

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/*-
* 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>
struct callback_args {
const char *string;
int64_t number;
};
int
xbps_remove_string_from_array(prop_object_t obj, void *arg, bool *loop_done)
{
static int64_t idx;
struct callback_args *cb = arg;
assert(prop_object_type(obj) == PROP_TYPE_STRING);
if (prop_string_equals_cstring(obj, cb->string)) {
cb->number = idx;
*loop_done = true;
return 0;
}
idx++;
return EINVAL;
}
bool
xbps_register_repository(const char *uri)
{
prop_dictionary_t dict;
prop_array_t array = NULL;
prop_object_t obj;
char *plist;
assert(uri != NULL);
plist = xbps_append_full_path(true, NULL, XBPS_REPOLIST);
if (plist == NULL) {
errno = EINVAL;
return false;
}
/* First check if we have the repository plist file. */
dict = prop_dictionary_internalize_from_file(plist);
if (dict == NULL) {
/* Looks like not, create it. */
dict = prop_dictionary_create();
if (dict == NULL) {
free(plist);
return false;
}
/* Create the array and add the repository URI on it. */
array = prop_array_create();
if (array == NULL) {
prop_object_release(dict);
free(plist);
return false;
}
if (!prop_array_set_cstring_nocopy(array, 0, uri))
goto fail;
/* Add the array obj into the main dictionary. */
if (!xbps_add_obj_to_dict(dict, array, "repository-list"))
goto fail;
/* Write dictionary into plist file. */
if (!prop_dictionary_externalize_to_file(dict, plist))
goto fail;
prop_object_release(dict);
} else {
/* Append into the array, the plist file exists. */
array = prop_dictionary_get(dict, "repository-list");
if (array == NULL)
goto fail;
assert(prop_object_type(array) == PROP_TYPE_ARRAY);
/* It seems that this object is already there */
if (xbps_find_string_in_array(array, uri)) {
errno = EEXIST;
goto fail;
}
obj = prop_string_create_cstring(uri);
if (!xbps_add_obj_to_array(array, obj)) {
prop_object_release(obj);
return false;
}
/* Write dictionary into plist file. */
if (!prop_dictionary_externalize_to_file(dict, plist)) {
prop_object_release(obj);
return false;
}
prop_object_release(dict);
}
free(plist);
return true;
fail:
prop_object_release(dict);
free(plist);
return false;
}
bool
xbps_unregister_repository(const char *uri)
{
prop_dictionary_t dict;
prop_array_t array;
struct callback_args *cb;
char *plist;
bool done = false;
assert(uri != NULL);
plist = xbps_append_full_path(true, NULL, XBPS_REPOLIST);
if (plist == NULL) {
errno = EINVAL;
return false;
}
dict = prop_dictionary_internalize_from_file(plist);
if (dict == NULL) {
free(plist);
return false;
}
array = prop_dictionary_get(dict, "repository-list");
if (array == NULL) {
prop_object_release(dict);
free(plist);
return false;
}
assert(prop_object_type(array) == PROP_TYPE_ARRAY);
cb = malloc(sizeof(*cb));
if (cb == NULL) {
prop_object_release(dict);
free(plist);
errno = ENOMEM;
return false;
}
cb->string = uri;
cb->number = -1;
done = xbps_callback_array_iter_in_dict(dict, "repository-list",
xbps_remove_string_from_array, cb);
if (done == 0 && cb->number >= 0) {
/* Found, remove it. */
prop_array_remove(array, cb->number);
/* Update plist file. */
if (prop_dictionary_externalize_to_file(dict, plist)) {
free(cb);
prop_object_release(dict);
free(plist);
return true;
}
} else {
/* Not found. */
errno = ENODEV;
}
prop_object_release(dict);
free(cb);
free(plist);
return false;
}