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
|
/*
* dpkg - main program for package management
* infodb.c - package control information database
*
* Copyright © 1995 Ian Jackson <ian@chiark.greenend.org.uk>
* Copyright © 2011 Guillem Jover <guillem@debian.org>
*
* 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 of the License, 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 this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <config.h>
#include <compat.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>
#include <dirent.h>
#include <unistd.h>
#include <dpkg/i18n.h>
#include <dpkg/dpkg.h>
#include <dpkg/dpkg-db.h>
#include <dpkg/debug.h>
#include "filesdb.h"
#include "infodb.h"
bool
pkg_infodb_has_file(struct pkginfo *pkg, struct pkgbin *pkgbin,
const char *name)
{
const char *filename;
struct stat stab;
filename = pkgadminfile(pkg, pkgbin, name);
if (lstat(filename, &stab) == 0)
return true;
else if (errno == ENOENT)
return false;
else
ohshite(_("unable to check existence of `%.250s'"), filename);
}
void
pkg_infodb_foreach(struct pkginfo *pkg, struct pkgbin *pkgbin,
pkg_infodb_file_func *func)
{
DIR *db_dir;
struct dirent *db_de;
struct varbuf db_path = VARBUF_INIT;
const char *pkgname;
size_t db_path_len;
if (pkgbin->multiarch == multiarch_same &&
pkg_infodb_get_format() == pkg_infodb_format_multiarch)
pkgname = pkgbin_name(pkg, pkgbin, pnaw_always);
else
pkgname = pkgbin_name(pkg, pkgbin, pnaw_never);
varbuf_add_str(&db_path, pkgadmindir());
varbuf_add_char(&db_path, '/');
db_path_len = db_path.used;
varbuf_add_char(&db_path, '\0');
db_dir = opendir(db_path.buf);
if (!db_dir)
ohshite(_("cannot read info directory"));
push_cleanup(cu_closedir, ~0, NULL, 0, 1, (void *)db_dir);
while ((db_de = readdir(db_dir)) != NULL) {
const char *filename, *filetype, *dot;
debug(dbg_veryverbose, "infodb foreach info file '%s'",
db_de->d_name);
/* Ignore dotfiles, including ‘.’ and ‘..’. */
if (db_de->d_name[0] == '.')
continue;
/* Ignore anything odd. */
dot = strrchr(db_de->d_name, '.');
if (dot == NULL)
continue;
/* Ignore files from other packages. */
if (strlen(pkgname) != (size_t)(dot - db_de->d_name) ||
strncmp(db_de->d_name, pkgname, dot - db_de->d_name))
continue;
debug(dbg_stupidlyverbose, "infodb foreach file this pkg");
/* Skip past the full stop. */
filetype = dot + 1;
varbuf_trunc(&db_path, db_path_len);
varbuf_add_str(&db_path, db_de->d_name);
varbuf_end_str(&db_path);
filename = db_path.buf;
func(filename, filetype);
}
pop_cleanup(ehflag_normaltidy); /* closedir */
varbuf_destroy(&db_path);
}
|
