* apt-pkg/deb/dpkgpm.cc:

[apt.git] / apt-pkg / contrib / fileutl.cc

diff --git a/apt-pkg/contrib/fileutl.cc b/apt-pkg/contrib/fileutl.cc
index df96a066ca597cf707e5048abe7ea9fa087692b6..d19a92e62cc107b44bb1e103dca047cba0dd74af 100644 (file)
--- a/apt-pkg/contrib/fileutl.cc
+++ b/apt-pkg/contrib/fileutl.cc
@@ -1,6 +1,6 @@
 // -*- mode: cpp; mode: fold -*-
 // Description                                                         /*{{{*/
-// $Id: fileutl.cc,v 1.40 2002/04/18 05:08:49 jgg Exp $
+// $Id: fileutl.cc,v 1.42 2002/09/14 05:29:22 jgg Exp $
 /* ######################################################################
    
    File Utilities
@@ -9,20 +9,19 @@
    GetLock - dpkg compatible lock file manipulation (fcntl)
    
    This source is placed in the Public Domain, do with it what you will
-   It was originally written by Jason Gunthorpe.
+   It was originally written by Jason Gunthorpe <jgg@debian.org>.
    
    ##################################################################### */
                                                                        /*}}}*/
 // Include Files                                                       /*{{{*/
-#ifdef __GNUG__
-#pragma implementation "apt-pkg/fileutl.h"
-#endif 
 #include <apt-pkg/fileutl.h>
 #include <apt-pkg/error.h>
 #include <apt-pkg/sptr.h>
+#include <apt-pkg/configuration.h>
 
 #include <apti18n.h>
 
+#include <cstdlib>
 #include <iostream>
 #include <unistd.h>
 #include <fcntl.h>
@@ -32,6 +31,7 @@
 #include <sys/wait.h>
 #include <signal.h>
 #include <errno.h>
+#include <set>
                                                                        /*}}}*/
 
 using namespace std;
@@ -156,12 +156,12 @@ string flNotDir(string File)
                                                                        /*}}}*/
 // flNotFile - Strip the file from the directory name                  /*{{{*/
 // ---------------------------------------------------------------------
-/* */
+/* Result ends in a / */
 string flNotFile(string File)
 {
    string::size_type Res = File.rfind('/');
    if (Res == string::npos)
-      return File;
+      return "./";
    Res++;
    return string(File,0,Res);
 }
@@ -306,7 +306,7 @@ bool WaitFd(int Fd,bool write,unsigned long timeout)
 /* This is used if you want to cleanse the environment for the forked 
    child, it fixes up the important signals and nukes all of the fds,
    otherwise acts like normal fork. */
-int ExecFork()
+pid_t ExecFork()
 {
    // Fork off the process
    pid_t Process = fork();
@@ -326,10 +326,27 @@ int ExecFork()
       signal(SIGWINCH,SIG_DFL);
       signal(SIGCONT,SIG_DFL);
       signal(SIGTSTP,SIG_DFL);
-      
+
+      set<int> KeepFDs;
+      Configuration::Item const *Opts = _config->Tree("APT::Keep-Fds");
+      if (Opts != 0 && Opts->Child != 0)
+      {
+        Opts = Opts->Child;
+        for (; Opts != 0; Opts = Opts->Next)
+        {
+           if (Opts->Value.empty() == true)
+              continue;
+           int fd = atoi(Opts->Value.c_str());
+           KeepFDs.insert(fd);
+        }
+      }
+
       // Close all of our FDs - just in case
       for (int K = 3; K != 40; K++)
-        fcntl(K,F_SETFD,FD_CLOEXEC);
+      {
+        if(KeepFDs.find(K) == KeepFDs.end())
+           fcntl(K,F_SETFD,FD_CLOEXEC);
+      }
    }
    
    return Process;
@@ -340,7 +357,7 @@ int ExecFork()
 /* Waits for the given sub process. If Reap is set then no errors are 
    generated. Otherwise a failed subprocess will generate a proper descriptive
    message */
-bool ExecWait(int Pid,const char *Name,bool Reap)
+bool ExecWait(pid_t Pid,const char *Name,bool Reap)
 {
    if (Pid <= 1)
       return true;
@@ -355,7 +372,7 @@ bool ExecWait(int Pid,const char *Name,bool Reap)
       if (Reap == true)
         return false;
       
-      return _error->Error(_("Waited, for %s but it wasn't there"),Name);
+      return _error->Error(_("Waited for %s but it wasn't there"),Name);
    }