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* Provide a minimal /etc/passwd in the chroot to keep some builders

Browse source 
happy.
This commit is contained in:
Eelco Dolstra 2008-12-11 17:44:02 +00:00
parent 7c54f1603f
commit 5a569509b4
1 changed files with 12 additions and 1 deletions
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13
src/libstore/build.cc
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@ -1673,6 +1673,17 @@ void DerivationGoal::startBuilder()
if (chmod(chrootTmpDir.c_str(), 01777) == -1)
throw SysError("creating /tmp in the chroot");
/* Create a /etc/passwd with entries for the build user and
the nobody account. The latter is kind of a hack to
support Samba-in-QEMU. */
createDirs(chrootRootDir + "/etc");
writeStringToFile(chrootRootDir + "/etc/passwd",
(format(
"nixbld:x:%1%:65534:Nix build user:/:/noshell\n"
"nobody:x:65534:65534:Nobody:/:/noshell\n")
% (buildUser.enabled() ? buildUser.getUID() : getuid())).str());
/* Bind-mount a user-configurable set of directories from the
host file system. The `/dev/pts' directory must be mounted
separately so that newly-created pseudo-terminals show
@ -1770,7 +1781,7 @@ void DerivationGoal::startBuilder()
safe. Also note that setuid() when run as root sets
the real, effective and saved UIDs. */
if (buildUser.enabled()) {
printMsg(lvlChatty, format("switching to user `%1%'") % buildUser.getUser());
debug(format("switching to user `%1%'") % buildUser.getUser());
if (amPrivileged()) {