From 36a0c0f78675d10cae840a72268f70aed667fb96 Mon Sep 17 00:00:00 2001 From: Michael Vogt Date: Fri, 26 Jul 2013 22:10:05 +0200 Subject: [PATCH 1/1] fix some coverity chroot() releated warnings --- apt-pkg/aptconfiguration.cc | 4 ++-- apt-pkg/deb/dpkgpm.cc | 1 + cmdline/apt-mark.cc | 4 ++-- 3 files changed, 5 insertions(+), 4 deletions(-) diff --git a/apt-pkg/aptconfiguration.cc b/apt-pkg/aptconfiguration.cc index 37c846582..e32e553a4 100644 --- a/apt-pkg/aptconfiguration.cc +++ b/apt-pkg/aptconfiguration.cc @@ -388,12 +388,12 @@ std::vector const Configuration::getArchitectures(bool const &Cache if (dpkgMultiArch == 0) { close(external[0]); std::string const chrootDir = _config->FindDir("DPkg::Chroot-Directory"); - if (chrootDir != "/" && chroot(chrootDir.c_str()) != 0) - _error->WarningE("getArchitecture", "Couldn't chroot into %s for dpkg --print-foreign-architectures", chrootDir.c_str()); int const nullfd = open("/dev/null", O_RDONLY); dup2(nullfd, STDIN_FILENO); dup2(external[1], STDOUT_FILENO); dup2(nullfd, STDERR_FILENO); + if (chrootDir != "/" && chroot(chrootDir.c_str()) != 0) + _error->WarningE("getArchitecture", "Couldn't chroot into %s for dpkg --print-foreign-architectures", chrootDir.c_str()); execvp(Args[0], (char**) &Args[0]); _error->WarningE("getArchitecture", "Can't detect foreign architectures supported by dpkg!"); _exit(100); diff --git a/apt-pkg/deb/dpkgpm.cc b/apt-pkg/deb/dpkgpm.cc index fb0473535..588ab68c4 100644 --- a/apt-pkg/deb/dpkgpm.cc +++ b/apt-pkg/deb/dpkgpm.cc @@ -134,6 +134,7 @@ static void dpkgChrootDirectory() std::cerr << "Chrooting into " << chrootDir << std::endl; if (chroot(chrootDir.c_str()) != 0) _exit(100); + chdir("/"); } /*}}}*/ diff --git a/cmdline/apt-mark.cc b/cmdline/apt-mark.cc index c5b7ca496..4c0fc2893 100644 --- a/cmdline/apt-mark.cc +++ b/cmdline/apt-mark.cc @@ -202,13 +202,13 @@ bool DoHold(CommandLine &CmdL) if (dpkgAssertMultiArch == 0) { std::string const chrootDir = _config->FindDir("DPkg::Chroot-Directory"); - if (chrootDir != "/" && chroot(chrootDir.c_str()) != 0) - _error->WarningE("getArchitecture", "Couldn't chroot into %s for dpkg --assert-multi-arch", chrootDir.c_str()); // 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); + if (chrootDir != "/" && chroot(chrootDir.c_str()) != 0) + _error->WarningE("getArchitecture", "Couldn't chroot into %s for dpkg --assert-multi-arch", chrootDir.c_str()); execvp(Args[0], (char**) &Args[0]); _error->WarningE("dpkgGo", "Can't detect if dpkg supports multi-arch!"); _exit(2); -- 2.45.2