pmsetprocessidentity(3) — Linux manual page

PMSETPROCESSIDENTITY(3) Library Functions Manual PMSETPROCESSIDENTITY(3)

NAME

       pmSetProcessIdentity - set process user and group id

C SYNOPSIS

       #include <pcp/pmapi.h>

       int pmSetProcessIdentity(const char *username);

       cc ... -lpcp

DESCRIPTION

       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

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

COLOPHON

       This page is part of the PCP (Performance Co-Pilot) project.
       Information about the project can be found at 
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       page, send it to pcp@groups.io.  This page was obtained from the
       project's upstream Git repository
       ⟨https://github.com/performancecopilot/pcp.git⟩ on 2024-06-14.
       (At that time, the date of the most recent commit that was found
       in the repository was 2024-06-14.)  If you discover any rendering
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       (which is not part of the original manual page), send a mail to
       man-pages@man7.org

Performance Co-Pilot               PCP           PMSETPROCESSIDENTITY(3)

Pages that refer to this page: pmgetusername(3)

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