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man:group_member

GROUP_MEMBER(3) Linux Programmer's Manual GROUP_MEMBER(3)

NAME

     group_member - test whether a process is in a group

SYNOPSIS

     #include <unistd.h>
     int group_member(gid_t gid);
 Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
     group_member(): _GNU_SOURCE

DESCRIPTION

     The  group_member()  function tests whether any of the caller's supple-
     mentary group IDs (as returned by getgroups(2)) matches gid.

RETURN VALUE

     The group_member() function returns nonzero if any of the caller's sup-
     plementary group IDs matches gid, and zero otherwise.

CONFORMING TO

     This function is a nonstandard GNU extension.

SEE ALSO

     getgid(2), getgroups(2), getgrouplist(3), group(5)

COLOPHON

     This  page  is  part of release 4.16 of the Linux man-pages project.  A
     description of the project, information about reporting bugs,  and  the
     latest     version     of     this    page,    can    be    found    at
     https://www.kernel.org/doc/man-pages/.

GNU 2014-03-30 GROUP_MEMBER(3)

/data/webs/external/dokuwiki/data/pages/man/group_member.txt · Last modified: 2019/05/17 09:47 by 127.0.0.1

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