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 3.74 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 http://www.kernel.org/doc/man-pages/. GNU 2014-03-30 GROUP_MEMBER(3)
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