From 9c81f8de38df940559d13a3ea9591d63cbe970bb Mon Sep 17 00:00:00 2001
From: David Kalnischkies <david@kalnischkies.de>
Date: Wed, 15 Oct 2014 04:18:07 +0200
Subject: check for available space, excluding root reserved blocks
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We are checking the space requirements for ages, but the check uses the
free blocks count, which includes the blocks reserved for usage by root.
Now that we use an unprivileged user it has no access to these blocks
anymore – and more importantly these blocks are a reserve, they
shouldn't be used by apt without special encouragement by the user as it
would be bad to have dpkg run out of diskspace and maintainerscripts
like man-db skip certain actions if not enough space is available
freely.
---
 cmdline/apt-get.cc | 28 +++-------------------------
 1 file changed, 3 insertions(+), 25 deletions(-)

(limited to 'cmdline')

diff --git a/cmdline/apt-get.cc b/cmdline/apt-get.cc
index 8c0c50f83..e176a3350 100644
--- a/cmdline/apt-get.cc
+++ b/cmdline/apt-get.cc
@@ -78,8 +78,6 @@
 #include <string.h>
 #include <sys/ioctl.h>
 #include <sys/stat.h>
-#include <sys/statfs.h>
-#include <sys/statvfs.h>
 #include <sys/wait.h>
 #include <unistd.h>
 #include <algorithm>
@@ -866,29 +864,9 @@ static bool DoSource(CommandLine &CmdL)
    unsigned long long FetchPBytes = Fetcher.PartialPresent();
    unsigned long long DebBytes = Fetcher.TotalNeeded();
 
-   // Check for enough free space
-   struct statvfs Buf;
-   string OutputDir = ".";
-   if (statvfs(OutputDir.c_str(),&Buf) != 0) {
-      if (errno == EOVERFLOW)
-	 return _error->WarningE("statvfs",_("Couldn't determine free space in %s"),
-				OutputDir.c_str());
-      else
-	 return _error->Errno("statvfs",_("Couldn't determine free space in %s"),
-				OutputDir.c_str());
-   } else if (unsigned(Buf.f_bfree) < (FetchBytes - FetchPBytes)/Buf.f_bsize)
-     {
-       struct statfs Stat;
-       if (statfs(OutputDir.c_str(),&Stat) != 0
-#if HAVE_STRUCT_STATFS_F_TYPE
-           || unsigned(Stat.f_type) != RAMFS_MAGIC
-#endif
-           )  {
-          return _error->Error(_("You don't have enough free space in %s"),
-              OutputDir.c_str());
-       }
-     }
-   
+   if (CheckFreeSpaceBeforeDownload(".", (FetchBytes - FetchPBytes)) == false)
+      return false;
+
    // Number of bytes
    if (DebBytes != FetchBytes)
       //TRANSLATOR: The required space between number and unit is already included
-- 
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