#include <apt-pkg/configuration.h>
#include <apt-pkg/depcache.h>
#include <apt-pkg/dpkgpm.h>
+#include <apt-pkg/debsystem.h>
#include <apt-pkg/error.h>
#include <apt-pkg/fileutl.h>
#include <apt-pkg/install-progress.h>
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;
const char *target;
public:
- MatchProcessingOp(const char *the_target)
+ explicit MatchProcessingOp(const char *the_target)
: target(the_target)
{
}
return ExecWait(Process, "ionice");
}
-static std::string getDpkgExecutable()
-{
- string Tmp = _config->Find("Dir::Bin::dpkg","dpkg");
- string const dpkgChrootDir = _config->FindDir("DPkg::Chroot-Directory", "/");
- size_t dpkgChrootLen = dpkgChrootDir.length();
- if (dpkgChrootDir != "/" && Tmp.find(dpkgChrootDir) == 0)
- {
- if (dpkgChrootDir[dpkgChrootLen - 1] == '/')
- --dpkgChrootLen;
- Tmp = Tmp.substr(dpkgChrootLen);
- }
- return Tmp;
-}
-
-// dpkgChrootDirectory - chrooting for dpkg if needed /*{{{*/
-static void dpkgChrootDirectory()
-{
- std::string const chrootDir = _config->FindDir("DPkg::Chroot-Directory");
- if (chrootDir == "/")
- return;
- std::cerr << "Chrooting into " << chrootDir << std::endl;
- if (chroot(chrootDir.c_str()) != 0)
- _exit(100);
- if (chdir("/") != 0)
- _exit(100);
-}
- /*}}}*/
-
-
// FindNowVersion - Helper to find a Version in "now" state /*{{{*/
// ---------------------------------------------------------------------
/* This is helpful when a package is no longer installed but has residual
strprintf(hookfd, "%d", InfoFD);
setenv("APT_HOOK_INFO_FD", hookfd.c_str(), 1);
- dpkgChrootDirectory();
+ debSystem::DpkgChrootDirectory();
const char *Args[4];
Args[0] = "/bin/sh";
Args[1] = "-c";
}
/*}}}*/
// 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 /*{{{*/
d->progress = progress;
// Generate the base argument list for dpkg
- unsigned long StartSize = 0;
- std::vector<const char *> Args;
- std::string DpkgExecutable = getDpkgExecutable();
- Args.push_back(DpkgExecutable.c_str());
- StartSize += DpkgExecutable.length();
-
- // 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.push_back(Opts->Value.c_str());
- StartSize += Opts->Value.length();
- }
- }
-
+ std::vector<std::string> const sArgs = debSystem::GetDpkgBaseCommand();
+ 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 i, std::string const &s) { return i + s.length(); });
size_t const BaseArgs = Args.size();
- // we need to detect if we can qualify packages with the architecture or not
- Args.push_back("--assert-multi-arch");
- Args.push_back(NULL);
-
- pid_t dpkgAssertMultiArch = ExecFork();
- if (dpkgAssertMultiArch == 0)
- {
- dpkgChrootDirectory();
- // redirect everything to the ultimate sink as we only need the exit-status
- int const nullfd = open("/dev/null", O_RDONLY);
- dup2(nullfd, STDIN_FILENO);
- dup2(nullfd, STDOUT_FILENO);
- dup2(nullfd, STDERR_FILENO);
- execvp(Args[0], (char**) &Args[0]);
- _error->WarningE("dpkgGo", "Can't detect if dpkg supports multi-arch!");
- _exit(2);
- }
fd_set rfds;
struct timespec tv;
// create log
OpenLog();
- bool dpkgMultiArch = false;
- if (dpkgAssertMultiArch > 0)
- {
- int Status = 0;
- while (waitpid(dpkgAssertMultiArch, &Status, 0) != dpkgAssertMultiArch)
- {
- if (errno == EINTR)
- continue;
- _error->WarningE("dpkgGo", _("Waited for %s but it wasn't there"), "dpkg --assert-multi-arch");
- break;
- }
- if (WIFEXITED(Status) == true && WEXITSTATUS(Status) == 0)
- dpkgMultiArch = true;
- }
+ bool dpkgMultiArch = debSystem::SupportsMultiArch();
// start pty magic before the loop
StartPtyMagic();
SetupSlavePtyMagic();
close(fd[0]); // close the read end of the pipe
- dpkgChrootDirectory();
+ debSystem::DpkgChrootDirectory();
if (chdir(_config->FindDir("DPkg::Run-Directory","/").c_str()) != 0)
_exit(100);
{
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)
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();
projects / apt.git / blobdiff