Commit | Line | Data |
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3fc8f685 AL |
1 | #include <stdio.h> |
2 | #include <string.h> | |
3 | #include <stdlib.h> | |
4 | #include <unistd.h> | |
5 | #define _GNU_SOURCE | |
6 | #include <getopt.h> | |
7 | #include <wait.h> | |
8 | #include <fstream.h> | |
9 | ||
10 | #include <apt-pkg/init.h> | |
11 | #if APT_PKG_MAJOR >= 3 | |
12 | #define APT_COMPATIBILITY 986 | |
13 | #include <apt-pkg/debversion.h> | |
14 | #endif | |
15 | #include <apt-pkg/pkgcache.h> | |
16 | #include <apt-pkg/configuration.h> | |
17 | #include <apt-pkg/progress.h> | |
18 | #include <apt-pkg/sourcelist.h> | |
19 | #include <apt-pkg/pkgcachegen.h> | |
20 | #include <apt-pkg/version.h> | |
21 | #include "debfile.h" | |
22 | ||
23 | #define TMPDIR "/var/lib/debconf/" | |
24 | #define STR(x) (x ? x : "") | |
25 | //#define TMPDIR "tmp/" | |
26 | ||
27 | void help(void) | |
28 | { | |
29 | fprintf(stderr, "apt-extracttemplates deb [deb]\n"); | |
30 | exit(0); | |
31 | } | |
32 | ||
33 | char *writefile(const char *prefix, const char *data) | |
34 | { | |
35 | char fn[512]; | |
36 | static int i; | |
37 | snprintf(fn, sizeof(fn), "%s%s.%u%d", TMPDIR, prefix, getpid(), i++); | |
38 | ||
39 | if (data == NULL) data = ""; | |
40 | ||
41 | ofstream ofs(fn); | |
42 | if (!ofs) return NULL; | |
43 | ofs << data; | |
44 | ofs.close(); | |
45 | return strdup(fn); | |
46 | } | |
47 | ||
48 | void writeconfig(const DebFile &file) | |
49 | { | |
50 | char *templatefile = writefile("template", file.Template); | |
51 | char *configscript = writefile("config", file.Config); | |
52 | ||
53 | if (templatefile == 0 || configscript == 0) | |
54 | { | |
55 | fprintf(stderr, "Cannot write config script or templates\n"); | |
56 | return; | |
57 | } | |
58 | printf("%s %s %s %s\n", | |
59 | STR(file.Package), // Package | |
60 | STR(file.Version), // Version | |
61 | templatefile, // Template | |
62 | configscript // Config | |
63 | ); | |
64 | } | |
65 | ||
66 | void init(MMap *&Map, pkgCache *&Cache) | |
67 | { | |
68 | // Initialize the apt cache | |
69 | if (pkgInitConfig(*_config) == false || pkgInitSystem(*_config, _system) == false) | |
70 | { | |
71 | fprintf(stderr, "Cannot initialize apt cache\n"); | |
72 | return; | |
73 | } | |
74 | pkgSourceList List; | |
75 | List.ReadMainList(); | |
76 | OpProgress Prog; | |
77 | pkgMakeStatusCache(List,Prog,&Map,true); | |
78 | Cache = new pkgCache(Map); | |
79 | } | |
80 | ||
81 | int main(int argc, char **argv, char **env) | |
82 | { | |
83 | int idx = 0; | |
84 | char **debs = 0; | |
85 | int numdebs = 0; | |
86 | MMap *Map = 0; | |
87 | const char *debconfver = NULL; | |
88 | ||
89 | init(Map, DebFile::Cache); | |
90 | if (Map == 0 || DebFile::Cache == 0) | |
91 | { | |
92 | fprintf(stderr, "Cannot initialize APT cache\n"); | |
93 | return 1; | |
94 | } | |
95 | ||
96 | debconfver = DebFile::GetInstalledVer("debconf"); | |
97 | ||
98 | if (debconfver == NULL) | |
99 | { | |
100 | fprintf(stderr, "Cannot get debconf version. Is debconf installed?\n"); | |
101 | return 1; | |
102 | } | |
103 | ||
104 | numdebs = argc - 1; | |
105 | debs = new char *[numdebs]; | |
106 | memcpy(debs, &argv[1], sizeof(char *) * numdebs); | |
107 | ||
108 | if (numdebs < 1) | |
109 | { | |
110 | fprintf(stderr, "apt-extracttemplates foo.deb [...]\n"); | |
111 | return 0; | |
112 | } | |
113 | ||
114 | for (idx = 0; idx < numdebs; idx++) | |
115 | { | |
116 | DebFile file(debs[idx]); | |
117 | if (file.Go() == false) | |
118 | { | |
119 | fprintf(stderr, "Cannot read %s\n", debs[idx]); | |
120 | continue; | |
121 | } | |
122 | if (file.Template != 0 && file.ParseInfo() == true) | |
123 | { | |
124 | if (file.DepVer != 0 && *file.DepVer != 0 && | |
125 | pkgCheckDep(file.DepVer, | |
126 | debconfver, file.DepOp) == false) | |
127 | continue; | |
128 | if (file.PreDepVer != 0 && *file.PreDepVer != 0 && | |
129 | pkgCheckDep(file.PreDepVer, | |
130 | debconfver, file.PreDepOp) == false) | |
131 | continue; | |
132 | ||
133 | writeconfig(file); | |
134 | } | |
135 | } | |
136 | ||
137 | ||
138 | delete Map; | |
139 | delete DebFile::Cache; | |
140 | ||
141 | return 0; | |
142 | } |