}
// Create the lockfile
- string AdminDir = flNotFile(_config->Find("Dir::State::status"));
+ string AdminDir = flNotFile(_config->FindFile("Dir::State::status"));
d->LockFD = GetLock(AdminDir + "lock");
if (d->LockFD == -1)
{
bool debSystem::CheckUpdates()
{
// Check for updates.. (dirty)
- string File = flNotFile(_config->Find("Dir::State::status")) + "updates/";
+ string File = flNotFile(_config->FindFile("Dir::State::status")) + "updates/";
DIR *DirP = opendir(File.c_str());
if (DirP == 0)
return false;
// System::Initialize - Setup the configuration space.. /*{{{*/
// ---------------------------------------------------------------------
/* These are the Debian specific configuration variables.. */
+static std::string getDpkgStatusLocation(Configuration const &Cnf) {
+ Configuration PathCnf;
+ PathCnf.Set("Dir", Cnf.Find("Dir", "/"));
+ PathCnf.Set("Dir::State::status", "status");
+ auto const cnfstatedir = Cnf.Find("Dir::State", STATE_DIR + 1);
+ // if the state dir ends in apt, replace it with dpkg -
+ // for the default this gives us the same as the fallback below.
+ // This can't be a ../dpkg as that would play bad with symlinks
+ std::string statedir;
+ if (APT::String::Endswith(cnfstatedir, "/apt/"))
+ statedir.assign(cnfstatedir, 0, cnfstatedir.length() - 5);
+ else if (APT::String::Endswith(cnfstatedir, "/apt"))
+ statedir.assign(cnfstatedir, 0, cnfstatedir.length() - 4);
+ if (statedir.empty())
+ PathCnf.Set("Dir::State", "var/lib/dpkg");
+ else
+ PathCnf.Set("Dir::State", flCombine(statedir, "dpkg"));
+ return PathCnf.FindFile("Dir::State::status");
+}
bool debSystem::Initialize(Configuration &Cnf)
{
/* These really should be jammed into a generic 'Local Database' engine
which is yet to be determined. The functions in pkgcachegen should
be the only users of these */
Cnf.CndSet("Dir::State::extended_states", "extended_states");
- Cnf.CndSet("Dir::State::status","/var/lib/dpkg/status");
- Cnf.CndSet("Dir::Bin::dpkg","/usr/bin/dpkg");
+ if (Cnf.Exists("Dir::State::status") == false)
+ Cnf.Set("Dir::State::status", getDpkgStatusLocation(Cnf));
+ Cnf.CndSet("Dir::Bin::dpkg",BIN_DIR"/dpkg");
if (d->StatusFile) {
delete d->StatusFile;
signed debSystem::Score(Configuration const &Cnf)
{
signed Score = 0;
- if (FileExists(Cnf.FindFile("Dir::State::status","/var/lib/dpkg/status")) == true)
+ if (FileExists(Cnf.FindFile("Dir::State::status",getDpkgStatusLocation(Cnf).c_str())) == true)
Score += 10;
- if (FileExists(Cnf.FindFile("Dir::Bin::dpkg","/usr/bin/dpkg")) == true)
+ if (FileExists(Cnf.Find("Dir::Bin::dpkg",BIN_DIR"/dpkg")) == true)
Score += 10;
if (FileExists("/etc/debian_version") == true)
Score += 10;
_exit(100);
}
/*}}}*/
-bool debSystem::SupportsMultiArch() /*{{{*/
+pid_t debSystem::ExecDpkg(std::vector<std::string> const &sArgs, int * const inputFd, int * const outputFd, bool const DiscardOutput)/*{{{*/
{
- // Generate the base argument list for dpkg
- std::vector<std::string> const Args = GetDpkgBaseCommand();
- std::vector<const char *> cArgs(Args.size(), NULL);
- std::transform(Args.begin(), Args.end(), cArgs.begin(), [](std::string const &s) { return s.c_str(); });
+ std::vector<const char *> Args(sArgs.size(), NULL);
+ std::transform(sArgs.begin(), sArgs.end(), Args.begin(), [](std::string const &s) { return s.c_str(); });
+ Args.push_back(NULL);
- // we need to detect if we can qualify packages with the architecture or not
- cArgs.push_back("--assert-multi-arch");
- cArgs.push_back(NULL);
+ int external[2] = {-1, -1};
+ if (inputFd != nullptr || outputFd != nullptr)
+ if (pipe(external) != 0)
+ {
+ _error->WarningE("dpkg", "Can't create IPC pipe for dpkg call");
+ return -1;
+ }
- pid_t dpkgAssertMultiArch = ExecFork();
- if (dpkgAssertMultiArch == 0)
- {
- DpkgChrootDirectory();
- // redirect everything to the ultimate sink as we only need the exit-status
+ pid_t const dpkg = ExecFork();
+ if (dpkg == 0) {
int const nullfd = open("/dev/null", O_RDONLY);
- dup2(nullfd, STDIN_FILENO);
- dup2(nullfd, STDOUT_FILENO);
- dup2(nullfd, STDERR_FILENO);
- execvp(cArgs[0], (char**) &cArgs[0]);
- _error->WarningE("dpkgGo", "Can't detect if dpkg supports multi-arch!");
- _exit(2);
+ if (inputFd == nullptr)
+ dup2(nullfd, STDIN_FILENO);
+ else
+ {
+ close(external[1]);
+ dup2(external[0], STDIN_FILENO);
+ }
+ if (outputFd == nullptr)
+ dup2(nullfd, STDOUT_FILENO);
+ else
+ {
+ close(external[0]);
+ dup2(external[1], STDOUT_FILENO);
+ }
+ if (DiscardOutput == true)
+ dup2(nullfd, STDERR_FILENO);
+ debSystem::DpkgChrootDirectory();
+ execvp(Args[0], (char**) &Args[0]);
+ _error->WarningE("dpkg", "Can't execute dpkg!");
+ _exit(100);
}
-
+ if (outputFd != nullptr)
+ {
+ close(external[1]);
+ *outputFd = external[0];
+ }
+ else if (inputFd != nullptr)
+ {
+ close(external[0]);
+ *inputFd = external[1];
+ }
+ return dpkg;
+}
+ /*}}}*/
+bool debSystem::SupportsMultiArch() /*{{{*/
+{
+ std::vector<std::string> Args = GetDpkgBaseCommand();
+ Args.push_back("--assert-multi-arch");
+ pid_t const dpkgAssertMultiArch = ExecDpkg(Args, nullptr, nullptr, true);
if (dpkgAssertMultiArch > 0)
{
int Status = 0;
return false;
}
/*}}}*/
+std::vector<std::string> debSystem::SupportedArchitectures() /*{{{*/
+{
+ std::vector<std::string> archs;
+ {
+ string const arch = _config->Find("APT::Architecture");
+ if (arch.empty() == false)
+ archs.push_back(std::move(arch));
+ }
+
+ std::vector<std::string> sArgs = GetDpkgBaseCommand();
+ sArgs.push_back("--print-foreign-architectures");
+ int outputFd = -1;
+ pid_t const dpkgMultiArch = ExecDpkg(sArgs, nullptr, &outputFd, true);
+ if (dpkgMultiArch == -1)
+ return archs;
+
+ FILE *dpkg = fdopen(outputFd, "r");
+ if(dpkg != NULL) {
+ char* buf = NULL;
+ size_t bufsize = 0;
+ while (getline(&buf, &bufsize, dpkg) != -1)
+ {
+ char* tok_saveptr;
+ char* arch = strtok_r(buf, " ", &tok_saveptr);
+ while (arch != NULL) {
+ for (; isspace_ascii(*arch) != 0; ++arch);
+ if (arch[0] != '\0') {
+ char const* archend = arch;
+ for (; isspace_ascii(*archend) == 0 && *archend != '\0'; ++archend);
+ string a(arch, (archend - arch));
+ if (std::find(archs.begin(), archs.end(), a) == archs.end())
+ archs.push_back(a);
+ }
+ arch = strtok_r(NULL, " ", &tok_saveptr);
+ }
+ }
+ free(buf);
+ fclose(dpkg);
+ }
+ ExecWait(dpkgMultiArch, "dpkg --print-foreign-architectures", true);
+ return archs;
+}
+ /*}}}*/
projects / apt.git / blobdiff