File: vercmp.h

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/*
 * Copyright (C) 1994,1995 Ian Jackson <ian@chiark.greenend.org.uk>
 * Copyright (C) 2000,2001 Wichert Akkerman
 * Copyright (C) 2008 Florian Weimer <fw@deneb.enyo.de>
 *
 * This 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,
 * or (at your option) any later version.
 *
 * This 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 dpkg; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#ifndef VERCMP_H
#define VERCMP_H

#include "symbol.h"

enum depverrel {
  dvrf_earlier=      0001,
  dvrf_later=        0002,
  dvrf_strict=       0010,
  dvrf_orequal=      0020,
  dvrf_builtup=      0100,
  dvr_none=          0200,
  dvr_earlierequal=  dvrf_builtup | dvrf_earlier | dvrf_orequal,
  dvr_earlierstrict= dvrf_builtup | dvrf_earlier | dvrf_strict,
  dvr_laterequal=    dvrf_builtup | dvrf_later   | dvrf_orequal,
  dvr_laterstrict=   dvrf_builtup | dvrf_later   | dvrf_strict,
  dvr_exact=         0400
};

struct versionrevision {
  unsigned long epoch;
  const char *version;
  const char *revision;
};

const struct versionrevision *parseversion(const char *string);
int versionsatisfied3(const struct versionrevision *it,
                      const struct versionrevision *ref,
                      enum depverrel verrel);
const char *formatversion(const struct versionrevision *);

struct pkg_version {
  symbol_t name;
  const struct versionrevision *version;
};

const char *parsedependency(const char *string, struct pkg_version *pv, enum depverrel *);

#endif