summaryrefslogtreecommitdiff
path: root/src/util/testdb.c
blob: f3a7b659557865f94c89e3638d33b260cf88b92c (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
/*
 *  testdb.c : Test a pacman local database for validity
 *
 *  Copyright (c) 2007 by Aaron Griffin <aaronmgriffin@gmail.com>
 *
 *  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, see <http://www.gnu.org/licenses/>.
 */

#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <dirent.h>

#include <alpm.h>
#include <alpm_list.h>

#define BASENAME "testdb"

alpm_handle_t *handle = NULL;

static void cleanup(int signum)
{
  if(handle && alpm_release(handle) == -1) {
    fprintf(stderr"error releasing alpm\n");
  }

  exit(signum);
}

static void output_cb(alpm_loglevel_t level, const char *fmt, va_list args)
{
  if(strlen(fmt)) {
    switch(level) {
      case ALPM_LOG_ERROR: printf("error: "); break;
      case ALPM_LOG_WARNING: printf("warning: "); break;
      defaultreturn;
    }
    vprintf(fmt, args);
  }
}

static int check_localdb_files(void)
{
  struct dirent *ent;
  const char *dbpath;
  char path[4096];
  int ret = 0;
  DIR *dir;

  dbpath = alpm_option_get_dbpath(handle);
  snprintf(path, sizeof(path), "%slocal", dbpath);
  if(!(dir = opendir(path))) {
    fprintf(stderr"error : %s : %s\n", path, strerror(errno));
    return 1;
  }

  while((ent = readdir(dir)) != NULL) {
    if(strcmp(ent->d_name, ".") == 0 || strcmp(ent->d_name, "..") == 0
        || ent->d_name[0] == '.') {
      continue;
    }
    /* check for known db files in local database */
    snprintf(path, sizeof(path), "%slocal/%s/desc", dbpath, ent->d_name);
    if(access(path, F_OK)) {
      printf("%s: description file is missing\n", ent->d_name);
      ret++;
    }
    snprintf(path, sizeof(path), "%slocal/%s/files", dbpath, ent->d_name);
    if(access(path, F_OK)) {
      printf("%s: file list is missing\n", ent->d_name);
      ret++;
    }
  }
  if(closedir(dir)) {
    fprintf(stderr"error closing dbpath : %s\n", strerror(errno));
    return 1;
  }

  return ret;
}

static int check_deps(alpm_list_t *pkglist)
{
  alpm_list_t *data, *i;
  int ret = 0;
  /* check dependencies */
  data = alpm_checkdeps(handle, pkglist, NULL, pkglist, 0);
  for(i = data; i; i = alpm_list_next(i)) {
    alpm_depmissing_t *miss = i->data;
    char *depstring = alpm_dep_compute_string(miss->depend);
    printf("missing %s dependency for %s\n", depstring, miss->target);
    free(depstring);
    ret++;
  }
  FREELIST(data);
  return ret;
}

static int check_conflicts(alpm_list_t *pkglist)
{
  alpm_list_t *data, *i;
  int ret = 0;
  /* check conflicts */
  data = alpm_checkconflicts(handle, pkglist);
  for(i = data; i; i = i->next) {
    alpm_conflict_t *conflict = i->data;
    printf("%s conflicts with %s\n",
        conflict->package1, conflict->package2);
    ret++;
  }
  FREELIST(data);
  return ret;
}

struct fileitem {
  alpm_file_t *file;
  alpm_pkg_t *pkg;
};

static int fileitem_cmp(const void *p1, const void *p2)
{
  const struct fileitem * fi1 = p1;
  const struct fileitem * fi2 = p2;
  return strcmp(fi1->file->name, fi2->file->name);
}

static int check_filelists(alpm_list_t *pkglist)
{
  alpm_list_t *i;
  int ret = 0;
  size_t list_size = 4096;
  size_t offset = 0, j;
  struct fileitem *all_files;
  struct fileitem *prev_fileitem = NULL;

  all_files = malloc(list_size * sizeof(struct fileitem));

  for(i = pkglist; i; i = i->next) {
    alpm_pkg_t *pkg = i->data;
    alpm_filelist_t *filelist = alpm_pkg_get_files(pkg);
    for(j = 0; j < filelist->count; j++) {
      alpm_file_t *file = filelist->files + j;
      /* only add files, not directories, to our big list */
      if(file->name[strlen(file->name) - 1] == '/') {
        continue;
      }

      /* do we need to reallocate and grow our array? */
      if(offset >= list_size) {
        struct fileitem *new_files;
        new_files = realloc(all_files, list_size * 2 * sizeof(struct fileitem));
        if(!new_files) {
          free(all_files);
          return 1;
        }
        all_files = new_files;
        list_size *= 2;
      }

      /* we can finally add it to the list */
      all_files[offset].file = file;
      all_files[offset].pkg = pkg;
      offset++;
    }
  }

  /* now sort the list so we can find duplicates */
  qsort(all_files, offset, sizeof(struct fileitem), fileitem_cmp);

  /* do a 'uniq' style check on the list */
  for(j = 0; j < offset; j++) {
    struct fileitem *fileitem = all_files + j;
    if(prev_fileitem && fileitem_cmp(prev_fileitem, fileitem) == 0) {
      printf("file owned by %s and %s%s\n",
          alpm_pkg_get_name(prev_fileitem->pkg),
          alpm_pkg_get_name(fileitem->pkg),
          fileitem->file->name);
    }
    prev_fileitem = fileitem;
  }

  free(all_files);
  return ret;
}

static int check_localdb(void)
{
  int ret = 0;
  alpm_db_t *db = NULL;
  alpm_list_t *pkglist;

  ret = check_localdb_files();
  if(ret) {
    return ret;
  }

  db = alpm_get_localdb(handle);
  pkglist = alpm_db_get_pkgcache(db);
  ret += check_deps(pkglist);
  ret += check_conflicts(pkglist);
  ret += check_filelists(pkglist);
  return ret;
}

static int check_syncdbs(alpm_list_t *dbnames)
{
  int ret = 0;
  alpm_db_t *db = NULL;
  alpm_list_t *i, *pkglist, *syncpkglist = NULL;
  const alpm_siglevel_t level = ALPM_SIG_DATABASE | ALPM_SIG_DATABASE_OPTIONAL;

  for(i = dbnames; i; i = alpm_list_next(i)) {
    const char *dbname = i->data;
    db = alpm_register_syncdb(handle, dbname, level);
    if(db == NULL) {
      fprintf(stderr"error: could not register sync database (%s)\n",
          alpm_strerror(alpm_errno(handle)));
      ret = 1;
      goto cleanup;
    }
    pkglist = alpm_db_get_pkgcache(db);
    syncpkglist = alpm_list_join(syncpkglist, alpm_list_copy(pkglist));
  }
  ret += check_deps(syncpkglist);

cleanup:
  alpm_list_free(syncpkglist);
  return ret;
}

static void usage(void)
{
  fprintf(stderr"usage:\n");
  fprintf(stderr,
      "\t%s [-b <pacman db>]                : check the local database\n", BASENAME);
  fprintf(stderr,
      "\t%s [-b <pacman db>] core extra ... : check the listed sync databases\n", BASENAME);
  exit(1);
}

int main(int argc, char *argv[])
{
  int ret = 0;
  alpm_errno_t err;
  const char *dbpath = DBPATH;
  int a = 1;
  alpm_list_t *dbnames = NULL;

  while(a < argc) {
    if(strcmp(argv[a], "-b") == 0) {
      if(++a < argc) {
        dbpath = argv[a];
      } else {
        usage();
      }
    } else if(strcmp(argv[a], "-h") == 0 ||
        strcmp(argv[a], "--help") == 0 ) {
      usage();
    } else {
      dbnames = alpm_list_add(dbnames, argv[a]);
    }
    a++;
  }

  handle = alpm_initialize(ROOTDIR, dbpath, &err);
  if(!handle) {
    fprintf(stderr"cannot initialize alpm: %s\n", alpm_strerror(err));
    return EXIT_FAILURE;
  }

  /* let us get log messages from libalpm */
  alpm_option_set_logcb(handle, output_cb);

  if(!dbnames) {
    ret = check_localdb();
  } else {
    ret = check_syncdbs(dbnames);
    alpm_list_free(dbnames);
  }

  cleanup(ret);
}

/* vim: set ts=2 sw=2 noet: */