pmsetprocessidentity(3) — Linux manual page

NAME | C SYNOPSIS | DESCRIPTION | SEE ALSO | COLOPHON

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)
       pmSetProcessIdentity 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.
       Information about the project can be found at 
       ⟨http://www.pcp.io/⟩.  If you have a bug report for this manual
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       ⟨https://github.com/performancecopilot/pcp.git⟩ on 2021-04-01.
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Performance Co-Pilot               PCP           PMSETPROCESSIDENTITY(3)

Pages that refer to this page: pmgetusername(3)