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pacman/lib/libalpm/provide.c
Aaron Griffin 3ebd125e1a * Switched some functions to alpm_pkg_get_* usage as I came across them
* Added some provision switching hackery.  This could probably use some
  refactoring,.. it solves the following case:

    pkg1 and pkg2 provide 'foo' and are both installed
    pkg3 depends on 'foo' and so lists 'pkg1' in the REQUIREDBY db section
    pkg1 is upgraded and no longer provides 'foo'
    ** This code ensures that the REQUIREDBY of pkg3 is updated to require pkg2
       now instead of pkg1
2007-03-01 07:03:05 +00:00

57 lines
1.5 KiB
C

/*
* provide.c
*
* Copyright (c) 2002-2006 by Judd Vinet <jvinet@zeroflux.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
* USA.
*/
#include "config.h"
#include <stdlib.h>
#include <string.h>
/* pacman */
#include "cache.h"
#include "alpm_list.h"
#include "db.h"
#include "log.h"
#include "provide.h"
/* return a alpm_list_t of packages in "db" that provide "package"
*/
alpm_list_t *_alpm_db_whatprovides(pmdb_t *db, const char *package)
{
alpm_list_t *pkgs = NULL;
alpm_list_t *lp;
ALPM_LOG_FUNC;
if(db == NULL || package == NULL || strlen(package) == 0) {
return(NULL);
}
for(lp = _alpm_db_get_pkgcache(db, INFRQ_DEPENDS); lp; lp = lp->next) {
pmpkg_t *info = lp->data;
if(alpm_list_find_str(alpm_pkg_get_provides(info), package)) {
pkgs = alpm_list_add(pkgs, info);
}
}
return(pkgs);
}
/* vim: set ts=2 sw=2 noet: */