// -*- mode: cpp; mode: fold -*-
// Description /*{{{*/
-// $Id: apt-extracttemplates.cc,v 1.3 2001/02/25 05:25:29 tausq Exp $
+// $Id: apt-extracttemplates.cc,v 1.15 2003/07/26 00:00:11 mdz Exp $
/* ######################################################################
APT Extract Templates - Program to extract debconf config and template
##################################################################### */
/*}}}*/
// Include Files /*{{{*/
+#include<config.h>
+
#include <apt-pkg/init.h>
#include <apt-pkg/cmndline.h>
-#include <apt-pkg/debversion.h>
#include <apt-pkg/pkgcache.h>
+#include <apt-pkg/cacheiterators.h>
#include <apt-pkg/configuration.h>
-#include <apt-pkg/progress.h>
#include <apt-pkg/sourcelist.h>
#include <apt-pkg/pkgcachegen.h>
#include <apt-pkg/version.h>
#include <apt-pkg/tagfile.h>
-#include <apt-pkg/extracttar.h>
-#include <apt-pkg/arfile.h>
+#include <apt-pkg/debfile.h>
#include <apt-pkg/deblistparser.h>
#include <apt-pkg/error.h>
#include <apt-pkg/strutl.h>
-
+#include <apt-pkg/fileutl.h>
+#include <apt-pkg/pkgsystem.h>
+#include <apt-pkg/dirstream.h>
+#include <apt-pkg/mmap.h>
+
+#include <apt-private/private-cmndline.h>
+#include <apt-private/private-main.h>
+
+#include <iostream>
#include <stdio.h>
#include <string.h>
-#include <stdlib.h>
#include <unistd.h>
-#include <wait.h>
-#include <fstream.h>
+#include <stdlib.h>
-#include <config.h>
-#include <apti18n.h>
#include "apt-extracttemplates.h"
-#define TMPDIR "/var/lib/debconf/"
+#include <apti18n.h>
+ /*}}}*/
+
+using namespace std;
pkgCache *DebFile::Cache = 0;
// ---------------------------------------------------------------------
/* */
DebFile::DebFile(const char *debfile)
- : File(debfile, FileFd::ReadOnly), Control(0), DepOp(0), PreDepOp(0),
- Config(0), Template(0), Which(None)
+ : File(debfile, FileFd::ReadOnly), Control(NULL), ControlLen(0),
+ DepOp(0), PreDepOp(0), Config(0), Template(0), Which(None)
{
}
/*}}}*/
// DebFile::GetInstalledVer - Find out the installed version of a pkg /*{{{*/
// ---------------------------------------------------------------------
/* */
-char *DebFile::GetInstalledVer(const string &package)
+string DebFile::GetInstalledVer(const string &package)
{
- char *ver = 0;
-
pkgCache::PkgIterator Pkg = Cache->FindPkg(package);
if (Pkg.end() == false)
{
pkgCache::VerIterator V = Pkg.CurrentVer();
- if (V.end() == false)
+ if (V.end() == false)
{
- ver = strdup(V.VerStr());
+ return V.VerStr();
}
}
- return ver;
+ return string();
}
/*}}}*/
// DebFile::Go - Start extracting a debian package /*{{{*/
/* */
bool DebFile::Go()
{
- ARArchive AR(File);
- const ARArchive::Member *Member = AR.FindMember("control.tar.gz");
- if (Member == 0)
- {
- fprintf(stderr, _("This is not a valid DEB package.\n"));
- return false;
- }
-
- if (File.Seek(Member->Start) == false)
- {
- return false;
- }
+ debDebFile Deb(File);
- ExtractTar Tar(File, Member->Size);
- return Tar.Go(*this);
+ return Deb.ExtractTarMember(*this, "control.tar");
}
/*}}}*/
// DebFile::DoItem examine element in package and mark /*{{{*/
if (strcmp(I.Name, "control") == 0)
{
delete [] Control;
- Control = new char[I.Size+1];
- Control[I.Size] = 0;
+ Control = new char[I.Size+3];
+ Control[I.Size] = '\n';
+ Control[I.Size + 1] = '\n';
+ Control[I.Size + 2] = '\0';
Which = IsControl;
- ControlLen = I.Size;
+ ControlLen = I.Size + 3;
// make it call the Process method below. this is so evil
Fd = -2;
}
}
else
{
+ // Ignore it
Fd = -1;
}
return true;
// DebFile::Process examine element in package and copy /*{{{*/
// ---------------------------------------------------------------------
/* */
-bool DebFile::Process(Item &I, const unsigned char *data,
- unsigned long size, unsigned long pos)
+bool DebFile::Process(Item &/*I*/, const unsigned char *data,
+ unsigned long long size, unsigned long long pos)
{
switch (Which)
{
bool DebFile::ParseInfo()
{
if (Control == NULL) return false;
+
pkgTagSection Section;
- Section.Scan(Control, ControlLen);
+ if (Section.Scan(Control, ControlLen) == false)
+ return false;
Package = Section.FindS("Package");
Version = GetInstalledVer(Package);
return true;
}
/*}}}*/
-// ShowHelp - show a short help text /*{{{*/
-// ---------------------------------------------------------------------
-/* */
-void ShowHelp(void)
+static bool ShowHelp(CommandLine &) /*{{{*/
{
- ioprintf(cout,_("%s %s for %s %s compiled on %s %s\n"),PACKAGE,VERSION,
- COMMON_OS,COMMON_CPU,__DATE__,__TIME__);
-
- if (_config->FindB("version") == true) return;
-
- fprintf(stderr,
+ cout <<
_("Usage: apt-extracttemplates file1 [file2 ...]\n"
"\n"
- "apt-extracttemplates is a tool to extract config and template info\n"
- "from debian packages\n"));
- exit(0);
+ "apt-extracttemplates is used to extract config and template files\n"
+ "from debian packages. It is used mainly by debconf(1) to prompt for\n"
+ "configuration questions before installation of packages.\n");
+ return true;
}
/*}}}*/
// WriteFile - write the contents of the passed string to a file /*{{{*/
// ---------------------------------------------------------------------
/* */
-char *WriteFile(const char *prefix, const char *data)
+static string WriteFile(const char *package, const char *prefix, const char *data)
{
char fn[512];
- static int i;
- snprintf(fn, sizeof(fn), "%s%s.%u%d", _config->Find("APT::ExtractTemplates::TempDir", TMPDIR).c_str(), prefix, getpid(), i++);
- ofstream ofs(fn);
- if (!ofs) return NULL;
- ofs << (data ? data : "");
- ofs.close();
- return strdup(fn);
+ std::string tempdir = GetTempDir();
+ snprintf(fn, sizeof(fn), "%s/%s.%s.XXXXXX",
+ _config->Find("APT::ExtractTemplates::TempDir",
+ tempdir.c_str()).c_str(),
+ package, prefix);
+ FileFd f;
+ if (data == NULL)
+ data = "";
+ int fd = mkstemp(fn);
+ if (fd < 0) {
+ _error->Errno("ofstream::ofstream",_("Unable to mkstemp %s"),fn);
+ return string();
+ }
+ if (!f.OpenDescriptor(fd, FileFd::WriteOnly, FileFd::None, true))
+ {
+ _error->Errno("ofstream::ofstream",_("Unable to write to %s"),fn);
+ return string();
+ }
+ f.Write(data, strlen(data));
+ f.Close();
+ return fn;
}
/*}}}*/
// WriteConfig - write out the config data from a debian package file /*{{{*/
// ---------------------------------------------------------------------
/* */
-void WriteConfig(const DebFile &file)
+static void WriteConfig(const DebFile &file)
{
- char *templatefile = WriteFile("template", file.Template);
- char *configscript = WriteFile("config", file.Config);
+ string templatefile = WriteFile(file.Package.c_str(), "template", file.Template);
+ string configscript = WriteFile(file.Package.c_str(), "config", file.Config);
- if (templatefile == 0 || configscript == 0)
- {
- fprintf(stderr, _("Cannot write config script or templates\n"));
+ if (templatefile.empty() == true || configscript.empty() == true)
return;
- }
cout << file.Package << " " << file.Version << " "
<< templatefile << " " << configscript << endl;
-
- free(templatefile);
- free(configscript);
}
/*}}}*/
// InitCache - initialize the package cache /*{{{*/
// ---------------------------------------------------------------------
/* */
-int InitCache(MMap *&Map, pkgCache *&Cache)
-{
+static bool Go(CommandLine &CmdL)
+{
// Initialize the apt cache
- if (pkgInitConfig(*_config) == false || pkgInitSystem(*_config, _system) == false)
- {
- _error->DumpErrors();
- return -1;
- }
+ MMap *Map = 0;
pkgSourceList List;
List.ReadMainList();
- OpProgress Prog;
- pkgMakeStatusCache(List,Prog,&Map,true);
- Cache = new pkgCache(Map);
- return 0;
-}
- /*}}}*/
-
-int main(int argc, const char **argv)
-{
- MMap *Map = 0;
- const char *debconfver = NULL;
-
- CommandLine::Args Args[] = {
- {'h',"help","help",0},
- {'v',"version","version",0},
- {'t',"tempdir","APT::ExtractTemplates::TempDir",CommandLine::HasArg},
- {'c',"config-file",0,CommandLine::ConfigFile},
- {'o',"option",0,CommandLine::ArbItem},
- {0,0,0,0}};
-
- // Initialize the package cache
- if (InitCache(Map, DebFile::Cache) < 0 || Map == 0 || DebFile::Cache == 0)
- {
- fprintf(stderr, _("Cannot initialize APT cache\n"));
- return 100;
- }
-
- // Parse the command line
- CommandLine CmdL(Args,_config);
- if (CmdL.Parse(argc,argv) == false)
- {
- fprintf(stderr, _("Cannot parse commandline options\n"));
- return 100;
- }
-
- // See if the help should be shown
- if (_config->FindB("help") == true || CmdL.FileSize() == 0)
- {
- ShowHelp();
- return 0;
- }
+ pkgCacheGenerator::MakeStatusCache(List,NULL,&Map,true);
+ if (Map == 0)
+ return false;
+ DebFile::Cache = new pkgCache(Map);
+ if (_error->PendingError() == true)
+ return false;
// Find out what version of debconf is currently installed
- if ((debconfver = DebFile::GetInstalledVer("debconf")) == NULL)
- {
- fprintf(stderr, _("Cannot get debconf version. Is debconf installed?\n"));
- return 1;
- }
+ string debconfver = DebFile::GetInstalledVer("debconf");
+ if (debconfver.empty() == true)
+ return _error->Error( _("Cannot get debconf version. Is debconf installed?"));
// Process each package passsed in
for (unsigned int I = 0; I != CmdL.FileSize(); I++)
{
+ // Will pick up the errors later..
DebFile file(CmdL.FileList[I]);
- if (file.Go() == false)
+ if (file.Go() == false)
{
- fprintf(stderr, _("Cannot read %s\n"), CmdL.FileList[I]);
+ _error->Error("Prior errors apply to %s",CmdL.FileList[I]);
continue;
}
+
// Does the package have templates?
if (file.Template != 0 && file.ParseInfo() == true)
{
// Check to make sure debconf dependencies are
// satisfied
+ // cout << "Check " << file.DepVer << ',' << debconfver << endl;
if (file.DepVer != "" &&
- DebFile::Cache->VS->CheckDep(file.DepVer.c_str(),
- file.DepOp, debconfver) == false)
+ DebFile::Cache->VS->CheckDep(debconfver.c_str(),
+ file.DepOp,file.DepVer.c_str()
+ ) == false)
continue;
if (file.PreDepVer != "" &&
- DebFile::Cache->VS->CheckDep(file.PreDepVer.c_str(),
- file.PreDepOp, debconfver) == false)
+ DebFile::Cache->VS->CheckDep(debconfver.c_str(),
+ file.PreDepOp,file.PreDepVer.c_str()
+ ) == false)
continue;
WriteConfig(file);
delete Map;
delete DebFile::Cache;
+
+ return !_error->PendingError();
+}
+ /*}}}*/
+static std::vector<aptDispatchWithHelp> GetCommands() /*{{{*/
+{
+ return {
+ {nullptr, nullptr, nullptr}
+ };
+}
+ /*}}}*/
+int main(int argc, const char **argv) /*{{{*/
+{
+ CommandLine CmdL;
+ auto const Cmds = ParseCommandLine(CmdL, APT_CMD::APT_EXTRACTTEMPLATES, &_config, &_system, argc, argv, &ShowHelp, &GetCommands);
+
+ Go(CmdL);
- return 0;
+ return DispatchCommandLine(CmdL, {});
}
+ /*}}}*/
projects / apt.git / blobdiff