// -*- mode: cpp; mode: fold -*-
// Description /*{{{*/
-// $Id: dpkgpm.cc,v 1.5 1998/12/14 06:54:44 jgg Exp $
+// $Id: dpkgpm.cc,v 1.12 1999/07/26 17:46:08 jgg Exp $
/* ######################################################################
DPKG Package Manager - Provide an interface to dpkg
// DPkgPM::Remove - Remove a package /*{{{*/
// ---------------------------------------------------------------------
/* Add a remove operation to the sequence list */
-bool pkgDPkgPM::Remove(PkgIterator Pkg)
+bool pkgDPkgPM::Remove(PkgIterator Pkg,bool Purge)
{
if (Pkg.end() == true)
return false;
- List.push_back(Item(Item::Remove,Pkg));
+ if (Purge == true)
+ List.push_back(Item(Item::Purge,Pkg));
+ else
+ List.push_back(Item(Item::Remove,Pkg));
+ return true;
+}
+ /*}}}*/
+// DPkgPM::RunScripts - Run a set of scripts /*{{{*/
+// ---------------------------------------------------------------------
+/* This looks for a list of script sto run from the configuration file,
+ each one is run with system from a forked child. */
+bool pkgDPkgPM::RunScripts(const char *Cnf)
+{
+ Configuration::Item const *Opts = _config->Tree(Cnf);
+ if (Opts == 0 || Opts->Child == 0)
+ return true;
+ Opts = Opts->Child;
+
+ // Fork for running the system calls
+ pid_t Child = ExecFork();
+
+ // This is the child
+ if (Child == 0)
+ {
+ if (chdir("/tmp/") != 0)
+ _exit(100);
+
+ unsigned int Count = 1;
+ for (; Opts != 0; Opts = Opts->Next, Count++)
+ {
+ if (Opts->Value.empty() == true)
+ continue;
+
+ if (system(Opts->Value.c_str()) != 0)
+ _exit(100+Count);
+ }
+ _exit(0);
+ }
+
+ // Wait for the child
+ int Status = 0;
+ while (waitpid(Child,&Status,0) != Child)
+ {
+ if (errno == EINTR)
+ continue;
+ return _error->Errno("waitpid","Couldn't wait for subprocess");
+ }
+
+ // Restore sig int/quit
+ signal(SIGQUIT,SIG_DFL);
+ signal(SIGINT,SIG_DFL);
+
+ // Check for an error code.
+ if (WIFEXITED(Status) == 0 || WEXITSTATUS(Status) != 0)
+ {
+ unsigned int Count = WEXITSTATUS(Status);
+ if (Count > 100)
+ {
+ Count -= 100;
+ for (; Opts != 0 && Count != 1; Opts = Opts->Next, Count--);
+ _error->Error("Problem executing scripts %s '%s'",Cnf,Opts->Value.c_str());
+ }
+
+ return _error->Error("Sub-process returned an error code");
+ }
+
return true;
}
/*}}}*/
/* This globs the operations and calls dpkg */
bool pkgDPkgPM::Go()
{
+ if (RunScripts("DPkg::Pre-Invoke") == false)
+ return false;
+
for (vector<Item>::iterator I = List.begin(); I != List.end();)
{
vector<Item>::iterator J = I;
Args[n++] = _config->Find("Dir::Bin::dpkg","dpkg").c_str();
Size += strlen(Args[n-1]);
+ // Stick in any custom dpkg options
+ Configuration::Item const *Opts = _config->Tree("DPkg::Options");
+ if (Opts != 0)
+ {
+ Opts = Opts->Child;
+ for (; Opts != 0; Opts = Opts->Next)
+ {
+ if (Opts->Value.empty() == true)
+ continue;
+ Args[n++] = Opts->Value.c_str();
+ Size += Opts->Value.length();
+ }
+ }
+
switch (I->Op)
{
case Item::Remove:
Size += strlen(Args[n-1]);
break;
+ case Item::Purge:
+ Args[n++] = "--force-depends";
+ Size += strlen(Args[n-1]);
+ Args[n++] = "--force-remove-essential";
+ Size += strlen(Args[n-1]);
+ Args[n++] = "--purge";
+ Size += strlen(Args[n-1]);
+ break;
+
case Item::Configure:
Args[n++] = "--configure";
Size += strlen(Args[n-1]);
{
for (;I != J && Size < 1024; I++)
{
+ if (I->File[0] != '/')
+ return _error->Error("Internal Error, Pathname to install is not absolute '%s'",I->File.c_str());
Args[n++] = I->File.c_str();
Size += strlen(Args[n-1]);
}
it doesn't die but we do! So we must also ignore it */
signal(SIGQUIT,SIG_IGN);
signal(SIGINT,SIG_IGN);
-
+
// Fork dpkg
- pid_t Child = fork();
- if (Child < 0)
- return _error->Errno("fork","Could't fork");
-
+ pid_t Child = ExecFork();
+
// This is the child
if (Child == 0)
{
- signal(SIGPIPE,SIG_DFL);
- signal(SIGQUIT,SIG_DFL);
- signal(SIGINT,SIG_DFL);
- signal(SIGWINCH,SIG_DFL);
- signal(SIGCONT,SIG_DFL);
- signal(SIGTSTP,SIG_DFL);
-
- if (chdir(_config->FindDir("Dir::Cache::Archives").c_str()) != 0)
+ if (chdir(_config->FindDir("DPkg::Run-Directory","/").c_str()) != 0)
_exit(100);
- // Close all of our FDs - just in case
- for (int K = 3; K != 40; K++)
- fcntl(K,F_SETFD,FD_CLOEXEC);
-
int Flags,dummy;
if ((Flags = fcntl(STDIN_FILENO,F_GETFL,dummy)) < 0)
_exit(100);
{
if (errno == EINTR)
continue;
+ RunScripts("DPkg::Post-Invoke");
return _error->Errno("waitpid","Couldn't wait for subprocess");
}
-
- // Check for an error code.
- if (WIFEXITED(Status) == 0 || WEXITSTATUS(Status) != 0)
- return _error->Error("Sub-process returned an error code");
// Restore sig int/quit
signal(SIGQUIT,SIG_DFL);
signal(SIGINT,SIG_DFL);
+
+ // Check for an error code.
+ if (WIFEXITED(Status) == 0 || WEXITSTATUS(Status) != 0)
+ {
+ RunScripts("DPkg::Post-Invoke");
+ if (WIFSIGNALED(Status) != 0 && WTERMSIG(Status) == SIGSEGV)
+ return _error->Error("Sub-process recieved a segmentation fault.");
+
+ if (WIFEXITED(Status) != 0)
+ return _error->Error("Sub-process returned an error code (%u)",WEXITSTATUS(Status));
+
+ return _error->Error("Sub-process exited unexpectedly");
+ }
}
+
+ if (RunScripts("DPkg::Post-Invoke") == false)
+ return false;
return true;
}
/*}}}*/
+// pkgDpkgPM::Reset - Dump the contents of the command list /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+void pkgDPkgPM::Reset()
+{
+ List.erase(List.begin(),List.end());
+}
+ /*}}}*/
projects / apt.git / blobdiff