libopkg/conffile.c

   1 /* conffile.c - the opkg package management system
   2
   3    Carl D. Worth
   4
   5    Copyright (C) 2001 University of Southern California
   6
   7    This program is free software; you can redistribute it and/or
   8    modify it under the terms of the GNU General Public License as
   9    published by the Free Software Foundation; either version 2, or (at
  10    your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful, but
  13    WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15    General Public License for more details.
  16 */
  17
  18 #include <string.h>
  19 #include <stdlib.h>
  20
  21 #include "includes.h"
  22 #include "opkg_message.h"
  23
  24 #include "conffile.h"
  25 #include "file_util.h"
  26 #include "sprintf_alloc.h"
  27
  28 int conffile_init(conffile_t *conffile, const char *file_name, const char *md5sum)
  29 {
  30     return nv_pair_init(conffile, file_name, md5sum);
  31 }
  32
  33 void conffile_deinit(conffile_t *conffile)
  34 {
  35     nv_pair_deinit(conffile);
  36 }
  37
  38 int conffile_has_been_modified(conffile_t *conffile)
  39 {
  40     char *md5sum;
  41     char *filename = conffile->name;
  42     char *root_filename;
  43     int ret = 1;
  44
  45     if (conffile->value == NULL) {
  46          opkg_msg(NOTICE, "Conffile %s has no md5sum.\n", conffile->name);
  47          return 1;
  48     }
  49
  50     root_filename = root_filename_alloc(filename);
  51
  52     md5sum = file_md5sum_alloc(root_filename);
  53
  54     if (md5sum && (ret = strcmp(md5sum, conffile->value))) {
  55         opkg_msg(INFO, "Conffile %s:\n\told md5=%s\n\tnew md5=%s\n",
  56                 conffile->name, md5sum, conffile->value);
  57     }
  58
  59     free(root_filename);
  60     if (md5sum)
  61         free(md5sum);
  62
  63     return ret;
  64 }