#include <apt-pkg/pkgrecords.h>
#include <apt-pkg/strutl.h>
#include <apti18n.h>
+#include <apt-pkg/fileutl.h>
#include <unistd.h>
#include <stdlib.h>
// ---------------------------------------------------------------------
/* */
pkgDPkgPM::pkgDPkgPM(pkgDepCache *Cache)
- : pkgPackageManager(Cache), dpkgbuf_pos(0), PackagesDone(0),
- PackagesTotal(0), term_out(NULL)
+ : pkgPackageManager(Cache), dpkgbuf_pos(0),
+ term_out(NULL), PackagesDone(0), PackagesTotal(0)
{
}
/*}}}*/
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 = ExecFork();
-
- // This is the child
- if (Child == 0)
- {
- if (chdir("/tmp/") != 0)
- _exit(100);
-
- 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("Problem executing scripts %s '%s'",Cnf,Opts->Value.c_str());
- }
-
- return _error->Error("Sub-process returned an error code");
- }
-
- return true;
-}
- /*}}}*/
// DPkgPM::SendV2Pkgs - Send version 2 package info /*{{{*/
// ---------------------------------------------------------------------
/* This is part of the helper script communication interface, it sends
return true;
}
-
/*}}}*/
// DPkgPM::DoStdin - Read stdin and pass to slave pty /*{{{*/
// ---------------------------------------------------------------------
*/
void pkgDPkgPM::DoStdin(int master)
{
- char input_buf[256] = {0,};
- int len = read(0, input_buf, sizeof(input_buf));
- write(master, input_buf, len);
+ unsigned char input_buf[256] = {0,};
+ ssize_t len = read(0, input_buf, sizeof(input_buf));
+ if (len)
+ write(master, input_buf, len);
+ else
+ stdin_is_dev_null = true;
}
/*}}}*/
// DPkgPM::DoTerminalPty - Read the terminal pty and write log /*{{{*/
*/
void pkgDPkgPM::DoTerminalPty(int master)
{
- char term_buf[1024] = {0,};
+ unsigned char term_buf[1024] = {0,0, };
- int len=read(master, term_buf, sizeof(term_buf));
- if(len <= 0)
+ ssize_t len=read(master, term_buf, sizeof(term_buf));
+ if(len == -1 && errno == EIO)
+ {
+ // this happens when the child is about to exit, we
+ // give it time to actually exit, otherwise we run
+ // into a race
+ usleep(500000);
+ return;
+ }
+ if(len <= 0)
return;
write(1, term_buf, len);
if(term_out)
return true;
}
+/*{{{*/
+// This implements a racy version of pselect for those architectures
+// that don't have a working implementation.
+// FIXME: Probably can be removed on Lenny+1
+static int racy_pselect(int nfds, fd_set *readfds, fd_set *writefds,
+ fd_set *exceptfds, const struct timespec *timeout,
+ const sigset_t *sigmask)
+{
+ sigset_t origmask;
+ struct timeval tv;
+ int retval;
+
+ tv.tv_sec = timeout->tv_sec;
+ tv.tv_usec = timeout->tv_nsec/1000;
+
+ sigprocmask(SIG_SETMASK, sigmask, &origmask);
+ retval = select(nfds, readfds, writefds, exceptfds, &tv);
+ sigprocmask(SIG_SETMASK, &origmask, 0);
+ return retval;
+}
+/*}}}*/
// DPkgPM::Go - Run the sequence /*{{{*/
// ---------------------------------------------------------------------
}
}
+ stdin_is_dev_null = false;
+
// create log
OpenLog();
/* No Job Control Stop Env is a magic dpkg var that prevents it
from using sigstop */
- putenv("DPKG_NO_TSTP=yes");
+ putenv((char *)"DPKG_NO_TSTP=yes");
execvp(Args[0],(char **)Args);
cerr << "Could not exec dpkg!" << endl;
_exit(100);
// setups fds
fd_set rfds;
- struct timeval tv;
+ struct timespec tv;
+ sigset_t sigmask;
+ sigset_t original_sigmask;
+ sigemptyset(&sigmask);
+ sigprocmask(SIG_BLOCK,&sigmask,&original_sigmask);
+
int select_ret;
while ((res=waitpid(Child,&Status, WNOHANG)) != Child) {
if(res < 0) {
signal(SIGINT,old_SIGINT);
return _error->Errno("waitpid","Couldn't wait for subprocess");
}
-
// wait for input or output here
FD_ZERO(&rfds);
- FD_SET(0, &rfds);
+ if (!stdin_is_dev_null)
+ FD_SET(0, &rfds);
FD_SET(_dpkgin, &rfds);
if(master >= 0)
FD_SET(master, &rfds);
tv.tv_sec = 1;
- tv.tv_usec = 0;
- select_ret = select(max(master, _dpkgin)+1, &rfds, NULL, NULL, &tv);
+ tv.tv_nsec = 0;
+ select_ret = pselect(max(master, _dpkgin)+1, &rfds, NULL, NULL,
+ &tv, &original_sigmask);
+ if (select_ret < 0 && (errno == EINVAL || errno == ENOSYS))
+ select_ret = racy_pselect(max(master, _dpkgin)+1, &rfds, NULL,
+ NULL, &tv, &original_sigmask);
if (select_ret == 0)
continue;
else if (select_ret < 0 && errno == EINTR)
signal(SIGQUIT,old_SIGQUIT);
signal(SIGINT,old_SIGINT);
- if(master >= 0 && slave >= 0)
+ if(master >= 0)
+ {
tcsetattr(0, TCSAFLUSH, &tt);
+ close(master);
+ }
// Check for an error code.
if (WIFEXITED(Status) == 0 || WEXITSTATUS(Status) != 0)
if (Pkg.end() == true)
return;
pkgCache::VerIterator Ver = Cache.GetCandidateVer(Pkg);
- pkgver = Ver.VerStr();
if (Ver.end() == true)
return;
+ pkgver = Ver.VerStr() == NULL ? "unknown" : Ver.VerStr();
pkgRecords Recs(Cache);
pkgRecords::Parser &Parse = Recs.Lookup(Ver.FileList());
srcpkgname = Parse.SourcePkg();
projects / apt.git / blobdiff