- if (*user) {
- struct passwd *usr;
-
- if (!(usr = getpwnam(user)) && isdigit(*user)) {
- sscanf(user, "%u", &value);
- usr = xgetpwuid(value);
- }
- if (!usr) error_exit("bad user '%s'", user);
- uid = usr->pw_uid;
- } else uid = getuid();
-
- if (*group) {
- struct group *grp;
-
- if (!(grp = getgrnam(group)) && isdigit(*group)) {
- sscanf (group, "%u", &value);
- grp = getgrgid(value);
- }
- if (!grp) error_exit("bad group '%s'", group);
- gid = grp->gr_gid;
- } else gid = getgid();