src/pkg-show.c

   1 /*
   2  * dpkg - main program for package management
   3  * pkg-show.c - primitives for pkg information display
   4  *
   5  * Copyright © 1995,1996 Ian Jackson <ian@chiark.greenend.org.uk>
   6  *
   7  * This is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21 #include <config.h>
  22 #include <compat.h>
  23
  24 #include <string.h>
  25
  26 #include <dpkg/macros.h>
  27 #include <dpkg/i18n.h>
  28 #include <dpkg/dpkg.h>
  29 #include <dpkg/dpkg-db.h>
  30
  31 void
  32 limiteddescription(struct pkginfo *pkg,
  33                    int maxl, const char **pdesc_r, int *l_r)
  34 {
  35         const char *pdesc, *p;
  36
  37         pdesc = pkg->installed.valid ? pkg->installed.description : NULL;
  38         if (!pdesc)
  39                 pdesc = _("(no description available)");
  40         p = strchr(pdesc, '\n');
  41         if (!p)
  42                 p = pdesc + strlen(pdesc);
  43
  44         *l_r = min(p - pdesc, maxl);
  45         *pdesc_r = pdesc;
  46 }
  47