mirror of
https://github.com/danog/ton.git
synced 2024-12-11 16:49:37 +01:00
42 lines
1.1 KiB
C++
42 lines
1.1 KiB
C++
|
#include "user.h"
|
||
|
|
#if TD_LINUX
|
||
|
|
#include <unistd.h>
|
||
|
|
#include <sys/types.h>
|
||
|
|
#include <pwd.h>
|
||
|
|
#include <grp.h>
|
||
|
|
#endif
|
||
|
|
|
||
|
|
namespace td {
|
||
|
|
|
||
|
|
#if TD_LINUX
|
||
|
|
td::Status change_user(td::Slice user) {
|
||
|
|
struct passwd *pw;
|
||
|
|
if (getuid() != 0 || geteuid() != 0) {
|
||
|
|
return td::Status::PosixError(errno, "cannot setuid() as not root");
|
||
|
|
}
|
||
|
|
if ((pw = getpwnam(user.str().c_str())) == 0) {
|
||
|
|
return td::Status::PosixError(errno, PSTRING() << "bad user '" << user << "'");
|
||
|
|
}
|
||
|
|
gid_t gid = pw->pw_gid;
|
||
|
|
if (setgroups(1, &gid) < 0) {
|
||
|
|
return td::Status::PosixError(errno, "failed to clear supplementary groups list");
|
||
|
|
}
|
||
|
|
if (initgroups(user.str().c_str(), gid) != 0) {
|
||
|
|
return td::Status::PosixError(errno, "failed to load groups of user");
|
||
|
|
}
|
||
|
|
if (setgid(pw->pw_gid) < 0) {
|
||
|
|
return td::Status::PosixError(errno, "failed to setgid()");
|
||
|
|
}
|
||
|
|
if (setuid(pw->pw_uid) < 0) {
|
||
|
|
return td::Status::PosixError(errno, "failed to setuid()");
|
||
|
|
}
|
||
|
|
return td::Status::OK();
|
||
|
|
}
|
||
|
|
#else
|
||
|
|
td::Status change_user(td::Slice username) {
|
||
|
|
return td::Status::Error("not implemented");
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
} // namespace td
|