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Annotation of researchv10dc/cmd/asd++/mkspool.c, revision 1.1.1.1

1.1       root        1: #include "decl.h"
                      2: #include <pwd.h>
                      3: 
                      4: /*
                      5:  *     mkspool() -- ensure the proper spool directories exist
                      6:  *     with the proper modes and ownerships.  This program should
                      7:  *     be run setuid to root.
                      8:  */
                      9: 
                     10: static const int dirmode = 0755;
                     11: 
                     12: struct ugid {
                     13:        int uid, gid;
                     14:        ugid (String&);
                     15:        ~ugid();
                     16: };
                     17: 
                     18: ugid::
                     19: ugid (String& s)
                     20: {
                     21:        char* cp = new char[s.length() + 1];
                     22:        s.dump (cp);
                     23:        struct passwd *pw = getpwnam (cp);
                     24:        delete cp;
                     25:        if (!pw) {
                     26:                cerr << "mkspool: cannot recognize logname " << s << "\n";
                     27:                exit (1);
                     28:        }
                     29:        uid = pw->pw_uid;
                     30:        gid = pw->pw_gid;
                     31: }
                     32: 
                     33: ugid::
                     34: ~ugid()
                     35: {
                     36:        endpwent();
                     37: }
                     38: 
                     39: static void
                     40: forcedir (Path& dir, String& uname)
                     41: {
                     42:        ugid u (uname);
                     43: 
                     44:        if (access (dir, 0) == 0) {
                     45:                if (!isdir (dir)) {
                     46:                        cerr << "mkspool: "
                     47:                                << dir << " exists and is not a directory\n";
                     48:                        exit (1);
                     49:                }
                     50:                chmod (dir, dirmode);
                     51:        } else
                     52:                mkdir (dir, dirmode);
                     53:        chown (dir, u.uid, u.gid);
                     54: }
                     55: 
                     56: main()
                     57: {
                     58:        String l = logname();
                     59:        forcedir (spooldir, "root");
                     60:        lock (spooldir);
                     61:        Path mydir = spooldir & l;
                     62:        forcedir (mydir, l);
                     63:        close (creat (mydir & "dummy", 0444));
                     64:        unlock (spooldir);
                     65:        cout << mydir << "\n";
                     66:        return 0;
                     67: }

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