pmsetprocessidentity(3) — Linux manual page

PMSETPROCESSIDENTITY(3)  Library Functions Manual PMSETPROCESSIDENTITY(3)

NAME         top

       pmSetProcessIdentity - set process user and group id

C SYNOPSIS         top

       #include <pcp/pmapi.h>

       int pmSetProcessIdentity(const char *username);

       cc ... -lpcp

DESCRIPTION         top

       pmSetProcessIdentity provides a platform-independent method to set
       the user id of a process to that matching username.

       If possible (when the caller is already running as root) pmSetPro‐
       cessIdentity  will  set the group id of the process to that of the
       matching user, e.g. using username and getpwnam(3).

       A return value of 0 indicates success, otherwise the return  value
       is an error code that may be decoded with pmErrStr(3).

       pmSetProcessIdentity  is  most  often  used  in  conjunction  with
       pmGetUsername(3) at process start up.

SEE ALSO         top

       getpwnam(3), PMAPI(3),  pmErrStr(3),  pmGetUsername(3),  setgid(3)
       and setuid(3).

COLOPHON         top

       This  page is part of the PCP (Performance Co-Pilot) project.  In‐
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Performance Co-Pilot               PCP            PMSETPROCESSIDENTITY(3)

Pages that refer to this page: pmgetusername(3)

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