diff options
| -rw-r--r-- | lib/libc/sys/getgroups.2 | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/lib/libc/sys/getgroups.2 b/lib/libc/sys/getgroups.2 index ea73890..6a16d55 100644 --- a/lib/libc/sys/getgroups.2 +++ b/lib/libc/sys/getgroups.2 @@ -30,6 +30,7 @@ .\" SUCH DAMAGE. .\" .\" @(#)getgroups.2 8.2 (Berkeley) 4/16/94 +.\" $Id$ .\" .Dd April 16, 1994 .Dt GETGROUPS 2 @@ -38,7 +39,7 @@ .Nm getgroups .Nd get group access list .Sh SYNOPSIS -.Fd #include <sys/param.h> +.Fd #include <sys/types.h> .Fd #include <unistd.h> .Ft int .Fn getgroups "int gidsetlen" "gid_t *gidset" @@ -60,6 +61,13 @@ as defined in .Aq Pa sys/param.h , will ever be returned. +If +.Fa gidsetlen +is zero, +.Fn getgroups +returns the number of supplementary group IDs associated with +the calling process without modifying the array pointed to by +.Fa gidset . .Sh RETURN VALUES A successful call returns the number of groups in the group set. A value of -1 indicates that an error occurred, and the error |
