diff options
Diffstat (limited to 'src/id.c')
-rw-r--r-- | src/id.c | 20 |
1 files changed, 20 insertions, 0 deletions
@@ -38,6 +38,13 @@ proper_name ("Arnold Robbins"), \ proper_name ("David MacKenzie") +/* Whether the functions getuid, geteuid, getgid and getegid may fail. */ +#ifdef __GNU__ +# define GETID_MAY_FAIL 1 +#else +# define GETID_MAY_FAIL 0 +#endif + /* If nonzero, output only the SELinux context. -Z */ static int just_context = 0; @@ -202,9 +209,22 @@ main (int argc, char **argv) else { euid = geteuid (); + if (GETID_MAY_FAIL && euid == -1 && !use_real + && !just_group && !just_group_list && !just_context) + error (EXIT_FAILURE, errno, _("cannot get effective UID")); + ruid = getuid (); + if (GETID_MAY_FAIL && ruid == -1 && use_real + && !just_group && !just_group_list && !just_context) + error (EXIT_FAILURE, errno, _("cannot get real UID")); + egid = getegid (); + if (GETID_MAY_FAIL && egid == -1 && !use_real && !just_user) + error (EXIT_FAILURE, errno, _("cannot get effective GID")); + rgid = getgid (); + if (GETID_MAY_FAIL && rgid == -1 && use_real && !just_user) + error (EXIT_FAILURE, errno, _("cannot get real GID")); } if (just_user) |