lib/dpkg/trigname.c

   1 /*
   2  * libdpkg - Debian packaging suite library routines
   3  * trigname.c - trigger name handling
   4  *
   5  * Copyright © 2007 Canonical Ltd
   6  * Written by Ian Jackson <ijackson@chiark.greenend.org.uk>
   7  *
   8  * This is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  20  */
  21
  22 #include <config.h>
  23 #include <compat.h>
  24
  25 #include <dpkg/i18n.h>
  26 #include <dpkg/triglib.h>
  27
  28 const char *
  29 trig_name_is_illegal(const char *p)
  30 {
  31         int c;
  32
  33         if (!*p)
  34                 return _("empty trigger names are not permitted");
  35
  36         while ((c = *p++)) {
  37                 if (c <= ' ' || c >= 0177)
  38                         return _("trigger name contains invalid character");
  39         }
  40
  41         return NULL;
  42 }