X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/0418949ebe9fc886e7794fa1de17c8b6c74e65ea..6dcae298f972eb20223838f0e1dc376c44bc9cc3:/cmdline/apt-extracttemplates.cc?ds=sidebyside diff --git a/cmdline/apt-extracttemplates.cc b/cmdline/apt-extracttemplates.cc index d5c1a3208..8f77425e4 100644 --- a/cmdline/apt-extracttemplates.cc +++ b/cmdline/apt-extracttemplates.cc @@ -18,43 +18,45 @@ #include #include #include +#include #include -#include #include #include #include #include -#include -#include +#include #include #include #include #include #include +#include +#include +#include +#include + +#include #include #include -#include #include -#include +#include -#include -#include #include "apt-extracttemplates.h" + +#include /*}}}*/ using namespace std; -#define TMPDIR "/tmp" - pkgCache *DebFile::Cache = 0; // DebFile::DebFile - Construct the DebFile object /*{{{*/ // --------------------------------------------------------------------- /* */ 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) { } /*}}}*/ @@ -91,18 +93,9 @@ string DebFile::GetInstalledVer(const string &package) /* */ bool DebFile::Go() { - ARArchive AR(File); - if (_error->PendingError() == true) - return false; - - const ARArchive::Member *Member = AR.FindMember("control.tar.gz"); - if (Member == 0) - return _error->Error(_("%s not a valid DEB package."),File.Name().c_str()); - - if (File.Seek(Member->Start) == false) - return false; - ExtractTar Tar(File, Member->Size,"gzip"); - return Tar.Go(*this); + debDebFile Deb(File); + + return Deb.ExtractTarMember(*this, "control.tar"); } /*}}}*/ // DebFile::DoItem examine element in package and mark /*{{{*/ @@ -113,10 +106,12 @@ bool DebFile::DoItem(Item &I, int &Fd) 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; } @@ -147,8 +142,8 @@ bool DebFile::DoItem(Item &I, int &Fd) // 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) { @@ -172,9 +167,10 @@ bool DebFile::Process(Item &I, const unsigned char *data, 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); @@ -219,57 +215,42 @@ bool DebFile::ParseInfo() return true; } /*}}}*/ -// ShowHelp - show a short help text /*{{{*/ -// --------------------------------------------------------------------- -/* */ -int ShowHelp(void) +static bool ShowHelp(CommandLine &) /*{{{*/ { - ioprintf(cout,_("%s %s for %s compiled on %s %s\n"),PACKAGE,VERSION, - COMMON_ARCH,__DATE__,__TIME__); - - if (_config->FindB("version") == true) - return 0; - - cout << + cout << _("Usage: apt-extracttemplates file1 [file2 ...]\n" "\n" - "apt-extracttemplates is a tool to extract config and template info\n" - "from debian packages\n" - "\n" - "Options:\n" - " -h This help text\n" - " -t Set the temp dir\n" - " -c=? Read this configuration file\n" - " -o=? Set an arbitrary configuration option, eg -o dir::cache=/tmp\n"); - return 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 /*{{{*/ // --------------------------------------------------------------------- /* */ -string WriteFile(const char *package, const char *prefix, const char *data) +static string WriteFile(const char *package, const char *prefix, const char *data) { char fn[512]; - static int i; - const char *tempdir = NULL; - - tempdir = getenv("TMPDIR"); - if (tempdir == NULL) - tempdir = TMPDIR; - snprintf(fn, sizeof(fn), "%s/%s.%s.%u%d", - _config->Find("APT::ExtractTemplates::TempDir", tempdir).c_str(), - package, prefix, getpid(), i++); + 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 = ""; - - if (!f.Open(fn, FileFd::WriteTemp, 0600)) + 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; @@ -278,7 +259,7 @@ string WriteFile(const char *package, const char *prefix, const char *data) // WriteConfig - write out the config data from a debian package file /*{{{*/ // --------------------------------------------------------------------- /* */ -void WriteConfig(const DebFile &file) +static void WriteConfig(const DebFile &file) { string templatefile = WriteFile(file.Package.c_str(), "template", file.Template); string configscript = WriteFile(file.Package.c_str(), "config", file.Config); @@ -292,7 +273,7 @@ void WriteConfig(const DebFile &file) // InitCache - initialize the package cache /*{{{*/ // --------------------------------------------------------------------- /* */ -bool Go(CommandLine &CmdL) +static bool Go(CommandLine &CmdL) { // Initialize the apt cache MMap *Map = 0; @@ -349,46 +330,22 @@ bool Go(CommandLine &CmdL) return !_error->PendingError(); } /*}}}*/ +static std::vector GetCommands() /*{{{*/ +{ + return { + {nullptr, nullptr, nullptr} + }; +} + /*}}}*/ int main(int argc, const char **argv) /*{{{*/ { - 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}}; + InitLocale(); - // Set up gettext support - setlocale(LC_ALL,""); - textdomain(PACKAGE); + CommandLine CmdL; + auto const Cmds = ParseCommandLine(CmdL, APT_CMD::APT_EXTRACTTEMPLATES, &_config, &_system, argc, argv, &ShowHelp, &GetCommands); - // Parse the command line and initialize the package library - CommandLine CmdL(Args,_config); - if (pkgInitConfig(*_config) == false || - CmdL.Parse(argc,argv) == false || - pkgInitSystem(*_config,_system) == false) - { - _error->DumpErrors(); - return 100; - } - - // See if the help should be shown - if (_config->FindB("help") == true || - CmdL.FileSize() == 0) - return ShowHelp(); - Go(CmdL); - // Print any errors or warnings found during operation - if (_error->empty() == false) - { - // This goes to stderr.. - bool Errors = _error->PendingError(); - _error->DumpErrors(); - return Errors == true?100:0; - } - - return 0; + return DispatchCommandLine(CmdL, {}); } /*}}}*/