vp-build/lib/requiredby.c

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/*-
* Copyright (c) 2009 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 <unistd.h>
#include <fcntl.h>
#include <xbps_api.h>
static int
add_pkg_into_reqby(prop_dictionary_t pkgd, const char *reqname)
{
prop_array_t array;
prop_string_t reqstr;
bool alloc = false;
array = prop_dictionary_get(pkgd, "requiredby");
if (array == NULL) {
alloc = true;
array = prop_array_create();
if (array == NULL)
return ENOMEM;
}
if (xbps_find_string_in_array(array, reqname))
return EEXIST;
reqstr = prop_string_create_cstring(reqname);
if (reqstr == NULL) {
if (alloc)
prop_object_release(array);
return errno;
}
if (!xbps_add_obj_to_array(array, reqstr)) {
if (alloc)
prop_object_release(array);
prop_object_release(reqstr);
return EINVAL;
}
if (!alloc)
return 0;
if (!xbps_add_obj_to_dict(pkgd, array, "requiredby")) {
if (alloc)
prop_object_release(array);
return EINVAL;
}
return 0;
}
static int
remove_pkg_from_reqby(prop_object_t obj, void *arg, bool *loop_done)
{
prop_array_t array;
prop_object_t obj2;
prop_object_iterator_t iter;
const char *pkgname = arg;
char *curpkgname;
size_t idx = 0;
bool found = false;
(void)loop_done;
array = prop_dictionary_get(obj, "requiredby");
if (array == NULL || prop_array_count(array) == 0)
return 0;
iter = prop_array_iterator(array);
if (iter == NULL)
return ENOMEM;
while ((obj2 = prop_object_iterator_next(iter)) != NULL) {
curpkgname =
xbps_get_pkg_name(prop_string_cstring_nocopy(obj2));
if (strcmp(curpkgname, pkgname) == 0) {
free(curpkgname);
found = true;
break;
}
free(curpkgname);
idx++;
}
prop_object_iterator_release(iter);
if (found)
prop_array_remove(array, idx);
return 0;
}
int
xbps_requiredby_pkg_remove(const char *pkgname)
{
prop_dictionary_t dict;
const char *rootdir;
char *plist;
int rv = 0;
rootdir = xbps_get_rootdir();
plist = xbps_xasprintf("%s/%s/%s", rootdir,
XBPS_META_PATH, XBPS_REGPKGDB);
if (plist == NULL)
return EINVAL;
dict = prop_dictionary_internalize_from_file(plist);
if (dict == NULL) {
free(plist);
return errno;
}
rv = xbps_callback_array_iter_in_dict(dict, "packages",
remove_pkg_from_reqby, __UNCONST(pkgname));
if (rv == 0) {
if (!prop_dictionary_externalize_to_file(dict, plist))
rv = errno;
}
prop_object_release(dict);
free(plist);
return rv;
}
int
xbps_requiredby_pkg_add(prop_array_t regar, prop_dictionary_t pkg)
{
prop_array_t rdeps;
prop_object_t obj, obj2;
prop_object_iterator_t iter, iter2;
const char *reqname, *pkgname, *version;
char *rdepname, *fpkgn;
int rv = 0;
prop_dictionary_get_cstring_nocopy(pkg, "pkgname", &pkgname);
prop_dictionary_get_cstring_nocopy(pkg, "version", &version);
fpkgn = xbps_xasprintf("%s-%s", pkgname, version);
if (fpkgn == NULL)
return ENOMEM;
rdeps = prop_dictionary_get(pkg, "run_depends");
if (rdeps == NULL || prop_array_count(rdeps) == 0) {
free(fpkgn);
return EINVAL;
}
iter = prop_array_iterator(rdeps);
if (iter == NULL) {
free(fpkgn);
return ENOMEM;
}
while ((obj = prop_object_iterator_next(iter)) != NULL) {
rdepname = xbps_get_pkg_name(prop_string_cstring_nocopy(obj));
iter2 = prop_array_iterator(regar);
if (iter2 == NULL) {
free(rdepname);
rv = ENOMEM;
goto out;
}
/*
* Iterate over the array to find the dictionary for the
* current run dependency.
*/
while ((obj2 = prop_object_iterator_next(iter2)) != NULL) {
prop_dictionary_get_cstring_nocopy(obj2, "pkgname",
&reqname);
if (strcmp(rdepname, reqname) == 0) {
rv = add_pkg_into_reqby(obj2, fpkgn);
if (rv != 0) {
free(rdepname);
prop_object_iterator_release(iter2);
goto out;
}
break;
}
}
prop_object_iterator_release(iter2);
free(rdepname);
}
out:
free(fpkgn);
prop_object_iterator_release(iter);
return rv;
}