Red Bear OS
82 lines
2.2 KiB
Rust
82 lines
2.2 KiB
Rust
#[macro_use]
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extern crate clap;
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use std::process::exit;
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use extra::option::OptionalExt;
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use redox_users::{All, AllGroups, AllUsers, Config};
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const _MAN_PAGE: &'static str = /* @MANSTART{groupmod} */
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r#"
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NAME
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groupmod - modify group information
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SYNOPSYS
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groupmod [ options ] GROUP
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groupmod [ -h | --help ]
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DESCRIPTION
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groupmod modifies a user group GROUP in the system's
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redox_users backend.
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OPTIONS
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-h, --help
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Print this help page and exit.
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-g, --gid GID
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Change GROUP's group id. GID must be a non-negative
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decimal integer.
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Files with GROUP's old gid will not be updated.
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User's who use the old gid as their primary gid will
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be updated.
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-n, --name NAME
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The name of the group will be set to NAME
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AUTHORS
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Wesley Hershberger.
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"#; /* @MANEND */
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fn main() {
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let args = clap_app!(groupmod =>
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(author: "Wesley Hershberger")
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(about: "Modify users according to the system's redox_users backend")
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(@arg GROUP: +required "Modify GROUP")
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(@arg GID: -g --gid +takes_value "Change GROUP's group id. See man page for details")
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(@arg NAME: -n --name +takes_value "Change GROUP's name")
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)
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.get_matches();
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let groupname = args.value_of("GROUP").unwrap();
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let mut sys_groups = AllGroups::new(Config::default().writeable(true)).unwrap_or_exit(1);
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{
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let group = sys_groups.get_mut_by_name(groupname).unwrap_or_else(|| {
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eprintln!("groupmod: group not found: {}", groupname);
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exit(1);
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});
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if let Some(gid) = args.value_of("GID") {
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let gid = gid.parse::<usize>().unwrap_or_exit(1);
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// Update users
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let mut sys_users =
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AllUsers::authenticator(Config::default().writeable(true)).unwrap_or_exit(1);
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for user in sys_users.iter_mut() {
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if user.gid == group.gid {
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user.gid = gid;
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}
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}
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sys_users.save().unwrap_or_exit(1);
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group.gid = gid;
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}
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if let Some(name) = args.value_of("NAME") {
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group.group = name.to_string();
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}
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}
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sys_groups.save().unwrap_or_exit(1);
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}
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