Log calling SUDO_USER or PKEXEC_UID in history.log

[apt.git] / apt-pkg / deb / dpkgpm.cc

diff --git a/apt-pkg/deb/dpkgpm.cc b/apt-pkg/deb/dpkgpm.cc
index 3ec8b2d60e3fc66c32821b2eb7a323b91ab6d73f..e94a8cfdc3be40e3dcd5aab63887dc3f32715af5 100644 (file)
--- a/apt-pkg/deb/dpkgpm.cc
+++ b/apt-pkg/deb/dpkgpm.cc
@@ -48,12 +48,28 @@
 #include <string>
 #include <utility>
 #include <vector>
+#include <sstream>
 
 #include <apti18n.h>
                                                                        /*}}}*/
 
 using namespace std;
 
+APT_PURE static string
+AptHistoryUser()
+{
+   stringstream out;
+   const char* env[]{"SUDO_USER", "PKEXEC_UID", nullptr};
+   for (int i=0; env[i] != nullptr; i++)
+   {
+      if (getenv(env[i]) != nullptr)
+      {
+         out << env[i] << "=" << getenv(env[i]) << " ";
+      }
+   }
+   return out.str();
+}
+
 APT_PURE static unsigned int
 EnvironmentSize()
 {
@@ -83,7 +99,7 @@ public:
    bool stdin_is_dev_null;
    // the buffer we use for the dpkg status-fd reading
    char dpkgbuf[1024];
-   int dpkgbuf_pos;
+   size_t dpkgbuf_pos;
    FILE *term_out;
    FILE *history_out;
    string dpkg_error;
@@ -126,7 +142,7 @@ namespace
     const char *target;
 
   public:
-    MatchProcessingOp(const char *the_target)
+    explicit MatchProcessingOp(const char *the_target)
       : target(the_target)
     {
     }
@@ -754,40 +770,33 @@ void pkgDPkgPM::handleDisappearAction(string const &pkgname)
 }
                                                                        /*}}}*/
 // DPkgPM::DoDpkgStatusFd                                              /*{{{*/
-// ---------------------------------------------------------------------
-/*
- */
 void pkgDPkgPM::DoDpkgStatusFd(int statusfd)
 {
-   char *p, *q;
-   int len;
-
-   len=read(statusfd, &d->dpkgbuf[d->dpkgbuf_pos], sizeof(d->dpkgbuf)-d->dpkgbuf_pos);
-   d->dpkgbuf_pos += len;
+   ssize_t const len = read(statusfd, &d->dpkgbuf[d->dpkgbuf_pos],
+        (sizeof(d->dpkgbuf)/sizeof(d->dpkgbuf[0])) - d->dpkgbuf_pos);
    if(len <= 0)
       return;
+   d->dpkgbuf_pos += (len / sizeof(d->dpkgbuf[0]));
 
-   // process line by line if we have a buffer
-   p = q = d->dpkgbuf;
-   while((q=(char*)memchr(p, '\n', d->dpkgbuf+d->dpkgbuf_pos-p)) != NULL)
+   // process line by line from the buffer
+   char *p = d->dpkgbuf, *q = nullptr;
+   while((q=(char*)memchr(p, '\n', (d->dpkgbuf + d->dpkgbuf_pos) - p)) != nullptr)
    {
-      *q = 0;
+      *q = '\0';
       ProcessDpkgStatusLine(p);
-      p=q+1; // continue with next line
+      p = q + 1; // continue with next line
    }
 
-   // now move the unprocessed bits (after the final \n that is now a 0x0) 
-   // to the start and update d->dpkgbuf_pos
-   p = (char*)memrchr(d->dpkgbuf, 0, d->dpkgbuf_pos);
-   if(p == NULL)
+   // check if we stripped the buffer clean
+   if (p > (d->dpkgbuf + d->dpkgbuf_pos))
+   {
+      d->dpkgbuf_pos = 0;
       return;
+   }
 
-   // we are interessted in the first char *after* 0x0
-   p++;
-
-   // move the unprocessed tail to the start and update pos
-   memmove(d->dpkgbuf, p, p-d->dpkgbuf);
-   d->dpkgbuf_pos = d->dpkgbuf+d->dpkgbuf_pos-p;
+   // otherwise move the unprocessed tail to the start and update pos
+   memmove(d->dpkgbuf, p, (p - d->dpkgbuf));
+   d->dpkgbuf_pos = (d->dpkgbuf + d->dpkgbuf_pos) - p;
 }
                                                                        /*}}}*/
 // DPkgPM::WriteHistoryTag                                             /*{{{*/
@@ -883,6 +892,8 @@ bool pkgDPkgPM::OpenLog()
       }
       if (_config->Exists("Commandline::AsString") == true)
         WriteHistoryTag("Commandline", _config->Find("Commandline::AsString"));
+      if (AptHistoryUser() != "")
+         WriteHistoryTag("Requested-By", AptHistoryUser());
       WriteHistoryTag("Install", install);
       WriteHistoryTag("Reinstall", reinstall);
       WriteHistoryTag("Upgrade", upgrade);
@@ -1201,7 +1212,7 @@ bool pkgDPkgPM::Go(APT::Progress::PackageManager *progress)
    std::vector<const char *> Args(sArgs.size(), NULL);
    std::transform(sArgs.begin(), sArgs.end(), Args.begin(),
         [](std::string const &s) { return s.c_str(); });
-   unsigned long long const StartSize = std::accumulate(sArgs.begin(), sArgs.end(), 0,
+   unsigned long long const StartSize = std::accumulate(sArgs.begin(), sArgs.end(), 0llu,
         [](unsigned long long const i, std::string const &s) { return i + s.length(); });
    size_t const BaseArgs = Args.size();
 
@@ -1597,7 +1608,7 @@ bool pkgDPkgPM::Go(APT::Progress::PackageManager *progress)
    {
       std::string const oldpkgcache = _config->FindFile("Dir::cache::pkgcache");
       if (oldpkgcache.empty() == false && RealFileExists(oldpkgcache) == true &&
-         unlink(oldpkgcache.c_str()) == 0)
+         RemoveFile("pkgDPkgPM::Go", oldpkgcache))
       {
         std::string const srcpkgcache = _config->FindFile("Dir::cache::srcpkgcache");
         if (srcpkgcache.empty() == false && RealFileExists(srcpkgcache) == true)
@@ -1718,11 +1729,11 @@ void pkgDPkgPM::WriteApportReport(const char *pkgpath, const char *errormsg)
    if(pos != string::npos)
       pkgname = pkgname.substr(0, pos);
 
-   // find the package versin and source package name
+   // find the package version and source package name
    pkgCache::PkgIterator Pkg = Cache.FindPkg(pkgname);
    if (Pkg.end() == true)
       return;
-   pkgCache::VerIterator Ver = Cache.GetCandidateVer(Pkg);
+   pkgCache::VerIterator Ver = Cache.GetCandidateVersion(Pkg);
    if (Ver.end() == true)
       return;
    pkgver = Ver.VerStr() == NULL ? "unknown" : Ver.VerStr();