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// Copyright 2015 Luke Shumaker <lukeshu@sbcglobal.net>.
//
// This is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License as
// published by the Free Software Foundation; either version 2 of
// the License, or (at your option) any later version.
//
// The GNU General Public License's references to "object code" and
// "executables" are to be interpreted to also include the output of
// any document formatting or typesetting system, including
// intermediate and printed output.
//
// This software is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public
// License along with this manual; if not, see
// <http://www.gnu.org/licenses/>.
package hackers_git
import (
p "lukeshu.com/git/go/libnslcd.git/proto"
s "syscall"
)
/* Note that the output password hash value should be one of:
<empty> - no password set, allow login without password
! - used to prevent logins
x - "valid" encrypted password that does not match any valid password
often used to indicate that the password is defined elsewhere
other - encrypted password, in crypt(3) format */
func (o *Hackers) Passwd_ByName(cred s.Ucred, req p.Request_Passwd_ByName) <-chan p.Passwd {
o.lock.RLock()
ret := make(chan p.Passwd)
go func() {
defer o.lock.RUnlock()
defer close(ret)
uid := o.name2uid(req.Name)
if uid < 0 {
return
}
passwd := o.users[uid].passwd
passwd.PwHash = "x" // only put actual hashes in the Shadow DB
ret <- passwd
}()
return ret
}
func (o *Hackers) Passwd_ByUID(cred s.Ucred, req p.Request_Passwd_ByUID) <-chan p.Passwd {
o.lock.RLock()
ret := make(chan p.Passwd)
go func() {
defer o.lock.RUnlock()
defer close(ret)
user, found := o.users[req.UID]
if !found {
return
}
passwd := user.passwd
passwd.PwHash = "x" // only put actual hashes in the Shadow DB
ret <- passwd
}()
return ret
}
func (o *Hackers) Passwd_All(cred s.Ucred, req p.Request_Passwd_All) <-chan p.Passwd {
o.lock.RLock()
ret := make(chan p.Passwd)
go func() {
defer o.lock.RUnlock()
defer close(ret)
for _, user := range o.users {
passwd := user.passwd
passwd.PwHash = "x" // only put actual hashes in the Shadow DB
ret <- passwd
}
}()
return ret
}
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