mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-11-22 15:40:19 +00:00
5e1499d104
This commit un-deprecates DeprecatedString, and repurposes it as a byte
string.
As the null state has already been removed, there are no other
particularly hairy blockers in repurposing this type as a byte string
(what it _really_ is).
This commit is auto-generated:
$ xs=$(ack -l \bDeprecatedString\b\|deprecated_string AK Userland \
Meta Ports Ladybird Tests Kernel)
$ perl -pie 's/\bDeprecatedString\b/ByteString/g;
s/deprecated_string/byte_string/g' $xs
$ clang-format --style=file -i \
$(git diff --name-only | grep \.cpp\|\.h)
$ gn format $(git ls-files '*.gn' '*.gni')
102 lines
2.7 KiB
C++
102 lines
2.7 KiB
C++
/*
|
|
* Copyright (c) 2020, Fei Wu <f.eiwu@yahoo.com>
|
|
* Copyright (c) 2021, Brandon Pruitt <brapru@pm.me>
|
|
* Copyright (c) 2021, Maxime Friess <M4x1me@pm.me>
|
|
* Copyright (c) 2022, Umut İnan Erdoğan <umutinanerdogan62@gmail.com>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#include <LibCore/ArgsParser.h>
|
|
#include <LibCore/System.h>
|
|
#include <LibMain/Main.h>
|
|
#include <grp.h>
|
|
#include <pwd.h>
|
|
#include <unistd.h>
|
|
|
|
ErrorOr<int> serenity_main(Main::Arguments arguments)
|
|
{
|
|
TRY(Core::System::pledge("stdio wpath rpath cpath fattr proc exec"));
|
|
TRY(Core::System::unveil("/etc/", "rwc"));
|
|
TRY(Core::System::unveil("/bin/rm", "x"));
|
|
TRY(Core::System::unveil(nullptr, nullptr));
|
|
|
|
ByteString groupname;
|
|
|
|
Core::ArgsParser args_parser;
|
|
args_parser.add_positional_argument(groupname, "Group name", "group");
|
|
args_parser.parse(arguments);
|
|
|
|
setgrent();
|
|
auto* g = getgrnam(groupname.characters());
|
|
|
|
// Check if the group exists
|
|
if (!g) {
|
|
warnln("group {} does not exist", groupname);
|
|
return 6;
|
|
}
|
|
auto gid = g->gr_gid;
|
|
endgrent();
|
|
|
|
// Search if the group is the primary group of an user
|
|
setpwent();
|
|
struct passwd* pw;
|
|
for (pw = getpwent(); pw; pw = getpwent()) {
|
|
if (pw->pw_gid == gid)
|
|
break;
|
|
}
|
|
|
|
// If pw is not NULL it means we ended prematurely, aka. the group was found as primary group of an user
|
|
if (pw) {
|
|
warnln("cannot remove the primary group of user '{}'", pw->pw_name);
|
|
endpwent();
|
|
return 8;
|
|
}
|
|
|
|
endpwent();
|
|
// We can now safely delete the group
|
|
|
|
// Create a temporary group file
|
|
char temp_group[] = "/etc/group.XXXXXX";
|
|
StringView temp_group_view { temp_group, strlen(temp_group) };
|
|
|
|
auto unlink_temp_files = [&] {
|
|
if (Core::System::unlink(temp_group_view).is_error())
|
|
perror("unlink");
|
|
};
|
|
|
|
ArmedScopeGuard unlink_temp_files_guard = [&] {
|
|
unlink_temp_files();
|
|
};
|
|
|
|
int temp_group_fd = TRY(Core::System::mkstemp(temp_group));
|
|
|
|
FILE* temp_group_file = fdopen(temp_group_fd, "w");
|
|
if (!temp_group_file) {
|
|
perror("fdopen");
|
|
return 1;
|
|
}
|
|
|
|
setgrent();
|
|
for (auto* gr = getgrent(); gr; gr = getgrent()) {
|
|
if (gr->gr_gid != gid) {
|
|
if (putgrent(gr, temp_group_file) != 0) {
|
|
perror("failed to put an entry in the temporary group file");
|
|
return 1;
|
|
}
|
|
}
|
|
}
|
|
endgrent();
|
|
|
|
if (fclose(temp_group_file)) {
|
|
perror("fclose");
|
|
return 1;
|
|
}
|
|
|
|
TRY(Core::System::chmod(temp_group_view, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH));
|
|
TRY(Core::System::rename(temp_group_view, "/etc/group"sv));
|
|
|
|
unlink_temp_files_guard.disarm();
|
|
|
|
return 0;
|
|
}
|