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daemon: Warn against running as root without `--build-users-group'.

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* nix/nix-daemon/guix-daemon.cc (main): Recommend using
  `--build-users-group' when running  as root without a build users
  group.
This commit is contained in:
Ludovic Courtès 2012-12-16 18:13:59 +01:00
parent 72ce03739e
commit e2332e8aa7
1 changed files with 6 additions and 0 deletions
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6
nix/nix-daemon/guix-daemon.cc
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@ -25,6 +25,8 @@
#include <stdlib.h>
#include <argp.h>
#include <unistd.h>
#include <sys/types.h>
/* Variables used by `nix-daemon.cc'. */
volatile ::sig_atomic_t blockInt;
@ -176,6 +178,10 @@ main (int argc, char *argv[])
argp_parse (&argp, argc, argv, 0, 0, 0);
if (geteuid () == 0 && settings.buildUsersGroup.empty ())
fprintf (stderr, "warning: running as root is highly recommended, "
"unless `--build-users-group' is used\n");
argvSaved = argv;
run (nothing);
}