diff options
Diffstat (limited to 'apt-pkg')
| -rw-r--r-- | apt-pkg/deb/dpkgpm.cc | 115 | ||||
| -rw-r--r-- | apt-pkg/deb/dpkgpm.h | 7 |
2 files changed, 112 insertions, 10 deletions
diff --git a/apt-pkg/deb/dpkgpm.cc b/apt-pkg/deb/dpkgpm.cc index b9c8cf968..9322a868d 100644 --- a/apt-pkg/deb/dpkgpm.cc +++ b/apt-pkg/deb/dpkgpm.cc @@ -1,6 +1,6 @@ // -*- mode: cpp; mode: fold -*- // Description /*{{{*/ -// $Id: dpkgpm.cc,v 1.5 1998/12/14 06:54:44 jgg Exp $ +// $Id: dpkgpm.cc,v 1.6 1999/01/31 08:49:39 jgg Exp $ /* ###################################################################### DPKG Package Manager - Provide an interface to dpkg @@ -74,11 +74,89 @@ bool pkgDPkgPM::Remove(PkgIterator 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 = fork(); + if (Child < 0) + return _error->Errno("fork","Could't fork"); + + // 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("/tmp/") != 0) + _exit(100); + + // Close all of our FDs - just in case + for (int K = 3; K != 40; K++) + fcntl(K,F_SETFD,FD_CLOEXEC); + + 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("Probablem executing scripts %s '%s'",Cnf,Opts->Value.c_str()); + } + + return _error->Error("Sub-process returned an error code"); + } + + return true; +} + /*}}}*/ // DPkgPM::Go - Run the sequence /*{{{*/ // --------------------------------------------------------------------- /* 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; @@ -94,6 +172,20 @@ bool pkgDPkgPM::Go() 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: @@ -154,12 +246,12 @@ bool pkgDPkgPM::Go() 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"); - + // This is the child if (Child == 0) { @@ -169,7 +261,7 @@ bool pkgDPkgPM::Go() signal(SIGWINCH,SIG_DFL); signal(SIGCONT,SIG_DFL); signal(SIGTSTP,SIG_DFL); - + if (chdir(_config->FindDir("Dir::Cache::Archives").c_str()) != 0) _exit(100); @@ -204,17 +296,24 @@ bool pkgDPkgPM::Go() { 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"); + return _error->Error("Sub-process returned an error code"); + } } + + if (RunScripts("DPkg::Post-Invoke") == false) + return false; return true; } /*}}}*/ diff --git a/apt-pkg/deb/dpkgpm.h b/apt-pkg/deb/dpkgpm.h index dcb6e9db0..db6ce2a28 100644 --- a/apt-pkg/deb/dpkgpm.h +++ b/apt-pkg/deb/dpkgpm.h @@ -1,6 +1,6 @@ // -*- mode: cpp; mode: fold -*- // Description /*{{{*/ -// $Id: dpkgpm.h,v 1.2 1998/11/23 07:03:12 jgg Exp $ +// $Id: dpkgpm.h,v 1.3 1999/01/31 08:49:39 jgg Exp $ /* ###################################################################### DPKG Package Manager - Provide an interface to dpkg @@ -32,7 +32,10 @@ class pkgDPkgPM : public pkgPackageManager }; vector<Item> List; - + + // Helpers + bool RunScripts(const char *Cnf); + // The Actuall installation implementation virtual bool Install(PkgIterator Pkg,string File); virtual bool Configure(PkgIterator Pkg); |