system/serenity
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usermod: Add -G option to modify supplementary groups

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Tim Ledbetter 2023-06-16 18:27:39 +01:00 committed by Andreas Kling
parent d7fccfc237
commit caf55c0b2d
2 changed files with 22 additions and 1 deletions
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3
Base/usr/share/man/man8/usermod.md
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@ -5,7 +5,7 @@ usermod - modify a user account
## Synopsis
```sh
$ usermod [--uid uid] [--gid group] [--lock] [--unlock] [--home new-home] [--move] [--shell path-to-shell] [--gecos general-info] <username>
$ usermod [--uid uid] [--gid group] [--groups groups] [--lock] [--unlock] [--home new-home] [--move] [--shell path-to-shell] [--gecos general-info] <username>
```
## Description
@ -19,6 +19,7 @@ This program must be run as root.
* `--version`: Print version
* `-u uid`, `--uid uid`: The new numerical value of the user's ID
* `-g group`, `--gid group`: The group name or number of the user's new initial login group
* `-G groups`, `--groups groups`: Set the user's supplementary groups. Groups are specified with a comma-separated list. Group names or numbers may be used
* `-L`, `--lock`: Lock password
* `-U`, `--unlock`: Unlock password
* `-d new-home`, `--home new-home`: The user's new login directory

20
Userland/Utilities/usermod.cpp
View file

@ -57,6 +57,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
StringView shell;
StringView gecos;
StringView username;
Vector<gid_t> extra_gids;
auto args_parser = Core::ArgsParser();
args_parser.set_general_help("Modify a user account");
@ -74,6 +75,21 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
return gid.has_value();
},
});
args_parser.add_option(Core::ArgsParser::Option {
.argument_mode = Core::ArgsParser::OptionArgumentMode::Required,
.help_string = "Set the user's supplementary groups. Groups are specified with a comma-separated list. Group names or numbers may be used",
.long_name = "groups",
.short_name = 'G',
.value_name = "groups",
.accept_value = [&extra_gids](StringView comma_separated_groups) {
auto groups = comma_separated_groups.split_view(',');
for (auto group : groups) {
if (auto gid = group_string_to_gid(group); gid.has_value())
extra_gids.append(gid.value());
}
return true;
},
});
args_parser.add_option(lock, "Lock password", "lock", 'L');
args_parser.add_option(unlock, "Unlock password", "unlock", 'U');
args_parser.add_option(new_home_directory, "The user's new login directory", "home", 'd', "new-home");
@ -162,6 +178,10 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
target_account.set_gecos(gecos);
}
if (!extra_gids.is_empty()) {
target_account.set_extra_gids(extra_gids);
}
TRY(Core::System::pledge("stdio wpath rpath cpath fattr"));
TRY(target_account.sync());