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Annotation of 43BSD/games/trek/shell.c, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1980 Regents of the University of California.
                      3:  * All rights reserved.  The Berkeley software License Agreement
                      4:  * specifies the terms and conditions for redistribution.
                      5:  */
                      6: 
                      7: #ifndef lint
                      8: static char sccsid[] = "@(#)shell.c    5.1 (Berkeley) 5/30/85";
                      9: #endif not lint
                     10: 
                     11: /*
                     12: **  CALL THE SHELL
                     13: */
                     14: 
                     15: shell()
                     16: {
                     17:        int             i;
                     18:        register int    pid;
                     19:        register int    sav2, sav3;
                     20: 
                     21:        if (!(pid = fork()))
                     22:        {
                     23:                setuid(getuid());
                     24:                nice(0);
                     25:                execl("/bin/csh", "-", 0);
                     26:                syserr("cannot execute /bin/csh");
                     27:        }
                     28:        sav2 = signal(2, 1);
                     29:        sav3 = signal(3, 1);
                     30:        while (wait(&i) != pid) ;
                     31:        signal(2, sav2);
                     32:        signal(3, sav3);
                     33: }

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