diff options
| author | David Kalnischkies <david@kalnischkies.de> | 2015-04-11 20:13:19 +0200 |
|---|---|---|
| committer | David Kalnischkies <david@kalnischkies.de> | 2015-04-19 01:13:09 +0200 |
| commit | d84da4995df24329e96d57a22136683a9e370f4e (patch) | |
| tree | c3e0eda9c64aedad70b72640976c26fa670c0638 /apt-pkg/contrib/fileutl.cc | |
| parent | 34faa8f7ae2526f46cd1f84bb6962ad06d841e5e (diff) | |
ensure lists/ files have correct permissions after apt-cdrom add
Its a bit unpredictable which permissons and owners we will encounter on
a CD-ROM (or a USB stick, as apt-cdrom is responsible for those too),
so we have to ensure in this codepath as well that everything is nicely
setup without waiting for a 'apt-get update' to fix up the (potential)
mess.
Diffstat (limited to 'apt-pkg/contrib/fileutl.cc')
| -rw-r--r-- | apt-pkg/contrib/fileutl.cc | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/apt-pkg/contrib/fileutl.cc b/apt-pkg/contrib/fileutl.cc index 47033eadf..afc243b7f 100644 --- a/apt-pkg/contrib/fileutl.cc +++ b/apt-pkg/contrib/fileutl.cc @@ -874,6 +874,25 @@ bool StartsWithGPGClearTextSignature(string const &FileName) return true; } /*}}}*/ +// ChangeOwnerAndPermissionOfFile - set file attributes to requested values /*{{{*/ +bool ChangeOwnerAndPermissionOfFile(char const * const requester, char const * const file, char const * const user, char const * const group, mode_t const mode) +{ + if (strcmp(file, "/dev/null") == 0) + return true; + bool Res = true; + if (getuid() == 0 && strlen(user) != 0 && strlen(group) != 0) // if we aren't root, we can't chown, so don't try it + { + // ensure the file is owned by root and has good permissions + struct passwd const * const pw = getpwnam(user); + struct group const * const gr = getgrnam(group); + if (pw != NULL && gr != NULL && chown(file, pw->pw_uid, gr->gr_gid) != 0) + Res &= _error->WarningE(requester, "chown to %s:%s of file %s failed", user, group, file); + } + if (chmod(file, mode) != 0) + Res &= _error->WarningE(requester, "chmod 0%o of file %s failed", mode, file); + return Res; +} + /*}}}*/ class FileFdPrivate { /*{{{*/ public: |