setgroups man page on DragonFly

setgroups man page on DragonFly

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SETGROUPS(2)		    BSD System Calls Manual		  SETGROUPS(2)

NAME
     setgroups — set group access list

LIBRARY
     Standard C Library (libc, -lc)

SYNOPSIS
     #include <sys/param.h>
     #include <unistd.h>

     int
     setgroups(int ngroups, const gid_t *gidset);

DESCRIPTION
     Setgroups() sets the group access list of the current user process
     according to the array gidset.  The parameter ngroups indicates the num‐
     ber of entries in the array and must be no more than NGROUPS, as defined
     in <sys/param.h>.

     Only the super-user may set new groups.

RETURN VALUES
     The setgroups() function returns the value 0 if successful; otherwise the
     value -1 is returned and the global variable errno is set to indicate the
     error.

ERRORS
     The setgroups() call will fail if:

     [EPERM]		The caller is not the super-user.

     [EFAULT]		The address specified for gidset is outside the
			process address space.

SEE ALSO
     getgroups(2), initgroups(3)

HISTORY
     The setgroups() function call appeared in 4.2BSD.

BSD				April 16, 1994				   BSD

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