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Annotation of researchv10no/games/trek/shell.c, revision 1.1

1.1     ! root        1: #include "trek.h"
        !             2: /**
        !             3:  **    call the shell
        !             4:  **/
        !             5: 
        !             6: shell()
        !             7: {
        !             8:        int             i;
        !             9:        register int    pid;
        !            10:        register int    oldsig, oldqit;
        !            11: 
        !            12:        if (!(pid = fork()))
        !            13:        {
        !            14:                setuid(getuid());
        !            15:                nice(0);
        !            16:                signal(SIGINT, 0);
        !            17:                execl("/bin/sh", "-", 0);
        !            18:                syserr("cannot execute /bin/sh");
        !            19:        }
        !            20:        oldsig=signal(2,1); oldqit=signal(3,1);
        !            21:        while (wait(&i) != pid) ;
        !            22:        printf("trek!\n");
        !            23:        signal(2,oldsig); signal(3,oldqit);
        !            24: }

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