Finding if a process is active

[Andre Godin 8926]

   I have a process (written in C) running under SunOS 4.0.3 that
have to find out if a process exist, knowing only his name.

   Is there a system call (or something else) that can tell me if
a certain process is active?

   Thanks in advance.

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Andre GODIN			Internet: godin at ireq.hydro.qc.ca
HYDRO-QUEBEC
MONTREAL, CANADA