File indexing completed on 2024-05-05 03:54:29

 /* vi: ts=8 sts=4 sw=4
  *
     This file is part of the KDE project, module kdesu.
     SPDX-FileCopyrightText: 1999, 2000 Geert Jansen <g.t.jansen@stud.tue.nl>
 
     secure.cpp: Peer credentials for a UNIX socket.
 */
 
 #include "secure.h"
 
 #include <config-kdesud.h>
 #include <ksud_debug.h>
 
 #include <cerrno>
 #include <fcntl.h>
 #include <stdio.h>
 #include <string.h>
 #include <unistd.h>
 
 #include <sys/stat.h>
 
 // FIXME: This is just here to make it compile (since ksock* was removed from kdelibs).
 // It would be better to fix it more globally. (Caleb Tennis)
 typedef unsigned ksocklen_t;
 
 /**
  * Under Linux, Socket_security is supported.
  */
 
 #if HAVE_GETPEEREID
 
 SocketSecurity::SocketSecurity(int sockfd)
     : pid(-1)
     , gid(-1)
     , uid(-1)
 {
     uid_t euid;
     gid_t egid;
     if (getpeereid(sockfd, &euid, &egid) == 0) {
         uid = euid;
         gid = egid;
         pid = -1;
     }
 }
 
 #elif HAVE_GETPEERUCRED
 
 #include <ucred.h>
 
 SocketSecurity::SocketSecurity(int sockfd)
     : pid(-1)
     , gid(-1)
     , uid(-1)
 {
     ucred_t *ucred = 0;
 
     if (getpeerucred(sockfd, &ucred) == 0) {
         uid = ucred_geteuid(ucred);
         gid = ucred_getrgid(ucred);
         pid = -1;
         ucred_free(ucred);
     }
 }
 
 #elif defined(SO_PEERCRED)
 
 SocketSecurity::SocketSecurity(int sockfd)
     : pid(-1)
     , gid(-1)
     , uid(-1)
 {
     ucred cred;
     ksocklen_t len = sizeof(struct ucred);
     if (getsockopt(sockfd, SOL_SOCKET, SO_PEERCRED, &cred, &len) < 0) {
         qCCritical(KSUD_LOG) << "getsockopt(SO_PEERCRED) " << strerror(errno);
         return;
     }
     pid = cred.pid;
     gid = cred.gid;
     uid = cred.uid;
 }
 
 #else
 #ifdef __GNUC__
 #warning SocketSecurity support for your platform not implemented/available!
 #endif
 /**
  * The default version does nothing.
  */
 
 SocketSecurity::SocketSecurity(int sockfd)
     : pid(-1)
     , gid(-1)
     , uid(-1)
 {
     static bool warned_him = false;
 
     if (!warned_him) {
         qCWarning(KSUD_LOG) << "Using void socket security. Please add support for your";
         qCWarning(KSUD_LOG) << "platform to src/kdesud/secure.cpp";
         warned_him = true;
     }
 
     // This passes the test made in handler.cpp
     uid = getuid();
 }
 
 #endif