Process Name from PID

My C++ program needs to determine the name of a running process from its pid, without parsing the output from ps.  How is this done?
tmetzgerAsked:
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mtrCommented:
You didn't say what platform... some are different.  On some
(like AIX) you can use the getproc system call, which returns
a struct procinfo.  The progname is in the ui_comm field.
One of the GNU packages has a ps program in it -- you could
grab that and use it -- it probably has an example for whatever
platform you are on.
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System Programming

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