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
The setgroups() system call sets the group access list of the current user process according to the array gidset. The ngroups argument indi-
cates the number of entries in the array and must be no more than {NGROUPS_MAX}+1.
Only the super-user may set a new group list.
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 indi-
cate the error.
ERRORS
The setgroups() system call will fail if:
[EPERM] The caller is not the super-user.
[EINVAL] The number specified in the ngroups argument is larger than the {NGROUPS_MAX}+1 limit.
[EFAULT] The address specified for gidset is outside the process address space.
SEE ALSO getgroups(2), initgroups(3)HISTORY
The setgroups() system call appeared in 4.2BSD.
BSD April 16, 1994 BSD
Check Out this Related Man Page
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 number
of entries in the array and must be no more than {NGROUPS_MAX}.
Only the super-user may set new groups.
This system call affects only secondary groups.
RETURN VALUES
A 0 value is returned on success, -1 on error, with an error code stored in errno.
ERRORS
The setgroups() call will fail if:
[EINVAL] The value of ngroups is greater than {NGROUPS_MAX}.
[EPERM] The caller is not the super-user.
[EFAULT] The address specified for gidset is outside the process address space.
SEE ALSO getgroups(2), setegid(2), setgid(2), setregid(2), initgroups(3)HISTORY
The setgroups() function call appeared in 4.2BSD.
BSD October 7, 2006 BSD
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