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All the Perl that's Practical to Extract and Report

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Attaching to a process and calling a kernel function 2 Comments More | Login | Reply /

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  • My favorite sort of fun! Crazyness :)

    • I made it into a shell script so I'd have a working groups program since Mac OS X 10.6.2 has a "wrong" version. The shell script is dumb and just assumes it's ok to read 32 ints.

      #!/bin/bash
       
      cat >/tmp/groups.gdb <<EOF
        print \$ngroups = (int)getgroups(0,0)
        set \$groups = (int*)malloc(4092)
        set \$ngroups = (int)getgroups(\$ngroups,\$groups)
        x/32d \$groups
        call (void)free(\$groups)
        detach
        quit
      EOF
       
      gdb -x /tmp/groups.gdb -p $1

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