1 //
2 // pkgutils
3 //
4 // Copyright (c) 2000-2005 Per Liden
5 // Copyright (c) 2006-2021 by CRUX team (http://crux.nu)
6 //
7 // This program 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 program 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, write to the Free Software
19 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
20 // USA.
21 //
22
23 #ifndef PKGUTIL_H
24 #define PKGUTIL_H
25
26 #include <string>
27 #include <set>
28 #include <map>
29 #include <iostream>
30 #include <stdexcept>
31 #include <cerrno>
32 #include <cstring>
33 #include <sys/types.h>
34 #include <dirent.h>
35
36 #define PKG_EXT ".pkg.tar."
37 #define PKG_DIR "var/lib/pkg"
38 #define PKG_DB "var/lib/pkg/db"
39 #define PKG_REJECTED "var/lib/pkg/rejected"
40 #define VERSION_DELIM '#'
41 #define LDCONFIG "/sbin/ldconfig"
42 #define LDCONFIG_CONF "/etc/ld.so.conf"
43
44 using namespace std;
45
46 class pkgutil {
47 public:
48 struct pkginfo_t {
49 string version;
50 set<string> files;
51 };
52
53 typedef map<string, pkginfo_t> packages_t;
54
55 explicit pkgutil(const string& name);
56 virtual ~pkgutil() {}
57 virtual void run(int argc, char** argv) = 0;
58 virtual void print_help() const = 0;
59 void print_version() const;
60
61 protected:
62 // Database
63 void db_open(const string& path);
64 void db_commit();
65 void db_add_pkg(const string& name, const pkginfo_t& info);
66 bool db_find_pkg(const string& name);
67 void db_rm_pkg(const string& name);
68 void db_rm_pkg(const string& name, const set<string>& keep_list);
69 void db_rm_files(set<string> files, const set<string>& keep_list);
70 set<string> db_find_conflicts(const string& name, const pkginfo_t& info);
71
72 // Tar.gz
73 pair<string, pkginfo_t> pkg_open(const string& filename) const;
74 void pkg_install(const string& filename, const set<string>& keep_list, const set<string>& non_install_files, bool upgrade) const;
75 void pkg_footprint(string& filename) const;
76 void ldconfig() const;
77
78 string utilname;
79 packages_t packages;
80 string root;
81 };
82
83 class db_lock {
84 public:
85 db_lock(const string& root, bool exclusive);
86 ~db_lock();
87 private:
88 DIR* dir;
89 };
90
91 class runtime_error_with_errno : public runtime_error {
92 public:
93 explicit runtime_error_with_errno(const string& msg) throw()
94 : runtime_error(msg + string(": ") + strerror(errno)) {}
95 explicit runtime_error_with_errno(const string& msg, int e) throw()
96 : runtime_error(msg + string(": ") + strerror(e)) {}
97 };
98
99 // Utility functions
100 void assert_argument(char** argv, int argc, int index);
101 string itos(unsigned int value);
102 string mtos(mode_t mode);
103 string trim_filename(const string& filename);
104 bool file_exists(const string& filename);
105 bool file_empty(const string& filename);
106 bool file_equal(const string& file1, const string& file2);
107 bool permissions_equal(const string& file1, const string& file2);
108 void file_remove(const string& basedir, const string& filename);
109
110 #endif /* PKGUTIL_H */
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