From 704ef230d5f26ebfb2d61d3753f289815b2d4eff Mon Sep 17 00:00:00 2001
From: Ivailo Monev <xakepa10@gmail.com>
Date: Mon, 10 Oct 2022 20:51:06 +0300
Subject: [PATCH] generic: make use of KUser and KUserGroup

eventually KUser and KUserGroup will use getpwnam_r(), getgrnam_r(), etc. for thread safety

Signed-off-by: Ivailo Monev <xakepa10@gmail.com>
---
 ConfigureChecks.cmake           |  1 -
 config.h.cmake                  |  1 -
 kio/kfile/kacleditwidget.cpp    | 21 ++----------
 kio/kfile/kpropertiesdialog.cpp | 57 +++++++++------------------------
 kio/kio/chmodjob.cpp            | 15 ++++-----
 kio/kio/job.cpp                 | 24 ++++++--------
 kio/kio/kacl.cpp                | 46 ++++++++++----------------
 kio/kio/kfileitem.cpp           | 29 +++++++----------
 kio/kio/kurlcompletion.cpp      | 13 ++++----
 kioslave/file/file.cpp          | 21 ++++++------
 kioslave/file/file_unix.cpp     | 15 ++++-----
 kpty/kpty.cpp                   |  1 -
 12 files changed, 86 insertions(+), 158 deletions(-)

diff --git a/ConfigureChecks.cmake b/ConfigureChecks.cmake
index beee0278..9fd50188 100644
--- a/ConfigureChecks.cmake
+++ b/ConfigureChecks.cmake
@@ -41,7 +41,6 @@ kde4_bool_to_01(X11_XSync_FOUND HAVE_XSYNC)                           # kidletim
 # specific order.  Refer to the man page for each symbol for which a
 # check is to be added to get the proper set of headers.
 check_symbol_exists(strtoll         "stdlib.h"           HAVE_STRTOLL)      # kioslave
-check_symbol_exists(getgrouplist    "unistd.h;grp.h"     HAVE_GETGROUPLIST) # kio
 check_symbol_exists(strmode         "string.h"           HAVE_STRMODE)      # karchive
 
 check_function_exists(backtrace          HAVE_BACKTRACE)                    # kdecore, kio
diff --git a/config.h.cmake b/config.h.cmake
index 6e6ccb5a..769224cb 100644
--- a/config.h.cmake
+++ b/config.h.cmake
@@ -21,7 +21,6 @@
 #cmakedefine HAVE_SENDFILE 1
 #cmakedefine HAVE_SETMNTENT 1
 #cmakedefine HAVE_STRTOLL 1
-#cmakedefine HAVE_GETGROUPLIST 1
 #cmakedefine HAVE_STRMODE 1
 
 /* Define to 1 if you have the Xtest extension */
diff --git a/kio/kfile/kacleditwidget.cpp b/kio/kfile/kacleditwidget.cpp
index b02af3a1..08b37137 100644
--- a/kio/kfile/kacleditwidget.cpp
+++ b/kio/kfile/kacleditwidget.cpp
@@ -43,15 +43,11 @@
 #include <kdialog.h>
 #include <khbox.h>
 #include <kstandarddirs.h>
+#include <kuser.h>
 
 #ifdef HAVE_ACL_LIBACL_H
 # include <acl/libacl.h>
 #endif
-extern "C" {
-#include <pwd.h>
-#include <grp.h>
-}
-#include <assert.h>
 
 static struct {
     const char* label;
@@ -617,19 +613,8 @@ KACLListView::KACLListView( QWidget* parent )
 
 
     // fill the lists of all legal users and groups
-    struct passwd *user = 0;
-    setpwent();
-    while ( ( user = getpwent() ) != 0 ) {
-       m_allUsers << QString::fromLatin1( user->pw_name );
-    }
-    endpwent();
-
-    struct group *gr = 0;
-    setgrent();
-    while ( ( gr = getgrent() ) != 0 ) {
-       m_allGroups << QString::fromLatin1( gr->gr_name );
-    }
-    endgrent();
+    m_allUsers = KUser::allUserNames();
+    m_allGroups << KUserGroup::allGroupNames();
     m_allUsers.sort();
     m_allGroups.sort();
 
diff --git a/kio/kfile/kpropertiesdialog.cpp b/kio/kfile/kpropertiesdialog.cpp
index dcacfffb..a82f752e 100644
--- a/kio/kfile/kpropertiesdialog.cpp
+++ b/kio/kfile/kpropertiesdialog.cpp
@@ -48,8 +48,6 @@
 #include <config.h>
 #include <config-acl.h>
 extern "C" {
-#include <pwd.h>
-#include <grp.h>
 #include <time.h>
 #include <sys/stat.h>
 #include <sys/types.h>
@@ -61,10 +59,10 @@ extern "C" {
 
 #include <QtCore/QFile>
 #include <QtCore/QDir>
+#include <QtCore/QStringList>
 #include <QtGui/QLabel>
 #include <QtGui/QPushButton>
 #include <QtGui/QCheckBox>
-#include <QtCore/qstringlist.h>
 #include <QtCore/QTextStream>
 #include <QtGui/QPainter>
 #include <QtGui/QLayout>
@@ -72,7 +70,6 @@ extern "C" {
 #include <QtGui/QProgressBar>
 #include <QVector>
 #include <QFileInfo>
-#include <QtCore/qvarlengtharray.h>
 
 #ifdef HAVE_POSIX_ACL
 #include <sys/acl.h>
@@ -119,6 +116,7 @@ extern "C" {
 #include <kshell.h>
 #include <kcapacitybar.h>
 #include <kfileitemlistproperties.h>
+#include <kuser.h>
 
 #include "ui_kpropertiesdesktopbase.h"
 #include "ui_kpropertiesdesktopadvbase.h"
@@ -1542,7 +1540,7 @@ KFilePermissionsPropsPlugin::KFilePermissionsPropsPlugin( KPropertiesDialog *_pr
     QString fname = properties->kurl().fileName();
     bool isLocal = properties->kurl().isLocalFile();
     bool isTrash = ( properties->kurl().protocol().toLower() == "trash" );
-    bool IamRoot = (geteuid() == 0);
+    bool IamRoot = (::geteuid() == 0);
 
     const KFileItem item = properties->item();
     bool isLink = item.isLink();
@@ -1604,12 +1602,12 @@ KFilePermissionsPropsPlugin::KFilePermissionsPropsPlugin( KPropertiesDialog *_pr
     bool isMyFile = false;
 
     if (isLocal && !d->strOwner.isEmpty()) { // local files, and all owned by the same person
-        struct passwd *myself = getpwuid( geteuid() );
-        if ( myself != 0L )
+        const KUser kuser(KUser::UseEffectiveUID);
+        if ( kuser.isValid() )
         {
-            isMyFile = (d->strOwner == QString::fromLocal8Bit(myself->pw_name));
+            isMyFile = (d->strOwner == kuser.loginName());
         } else
-            kWarning() << "I don't exist ?! geteuid=" << geteuid();
+            kWarning() << "I don't exist ?! geteuid=" << ::geteuid();
     } else {
         //We don't know, for remote files, if they are ours or not.
         //So we let the user change permissions, and
@@ -1718,7 +1716,6 @@ KFilePermissionsPropsPlugin::KFilePermissionsPropsPlugin( KPropertiesDialog *_pr
    * OTOH, it is nice to offer this functionality for the standard user.
    */
     int i, maxEntries = 1000;
-    struct passwd *user;
 
     /* File owner: For root, offer a KLineEdit with autocompletion.
    * For a user, who can never chown() a file, offer a QLabel.
@@ -1728,10 +1725,9 @@ KFilePermissionsPropsPlugin::KFilePermissionsPropsPlugin( KPropertiesDialog *_pr
         d->usrEdit = new KLineEdit( gb );
         KCompletion *kcom = d->usrEdit->completionObject();
         kcom->setOrder(KCompletion::Sorted);
-        setpwent();
-        for (i=0; ((user = getpwent()) != 0L) && (i < maxEntries); ++i)
-            kcom->addItem(QString::fromLatin1(user->pw_name));
-        endpwent();
+        const QStringList usernames = KUser::allUserNames();
+        for (i = 0; i < usernames.size() && i < maxEntries; ++i)
+            kcom->addItem(usernames.at(i));
         d->usrEdit->setCompletionMode((i < maxEntries) ? KGlobalSettings::CompletionAuto :
                                       KGlobalSettings::CompletionNone);
         d->usrEdit->setText(d->strOwner);
@@ -1748,30 +1744,11 @@ KFilePermissionsPropsPlugin::KFilePermissionsPropsPlugin( KPropertiesDialog *_pr
     /*** Set Group ***/
 
     QStringList groupList;
-    QByteArray strUser;
-    user = getpwuid(geteuid());
-    if (user != 0L) {
-        strUser = user->pw_name;
-
-#ifdef HAVE_GETGROUPLIST
+    const KUser kuser(KUser::UseEffectiveUID);
+    if (kuser.isValid()) {
         // pick the groups to which the user belongs
-        int groupCount = 0;
-        QVarLengthArray<gid_t> groups;
-        if (getgrouplist(strUser, user->pw_gid, NULL, &groupCount) < 0) {
-            groups.resize(groupCount);
-            if (groups.data())
-                getgrouplist(strUser, user->pw_gid, groups.data(), &groupCount);
-            else
-                groupCount = 0;
-        }
-
-        for (i = 0; i < groupCount; i++) {
-            struct group *mygroup = getgrgid(groups[i]);
-            if (mygroup)
-                groupList += QString::fromLocal8Bit(mygroup->gr_name);
-        }
+        groupList = kuser.groupNames();
     }
-#endif // HAVE_GETGROUPLIST
 
     bool isMyGroup = groupList.contains(d->strGroup);
 
@@ -3290,12 +3267,10 @@ void KDesktopPropsPlugin::slotAdvanced()
     // Provide username completion up to 1000 users.
     KCompletion *kcom = new KCompletion;
     kcom->setOrder(KCompletion::Sorted);
-    struct passwd *pw;
     int i, maxEntries = 1000;
-    setpwent();
-    for (i=0; ((pw = getpwent()) != 0L) && (i < maxEntries); i++)
-        kcom->addItem(QString::fromLatin1(pw->pw_name));
-    endpwent();
+    const QStringList usernames = KUser::allUserNames();
+    for (i = 0; i < usernames.size() && i < maxEntries; i++)
+        kcom->addItem(usernames.at(i));
     if (i < maxEntries)
     {
         w.suidEdit->setCompletionObject(kcom, true);
diff --git a/kio/kio/chmodjob.cpp b/kio/kio/chmodjob.cpp
index 3d3b578b..71710185 100644
--- a/kio/kio/chmodjob.cpp
+++ b/kio/kio/chmodjob.cpp
@@ -27,12 +27,11 @@
 #include <klocale.h>
 #include <kdebug.h>
 #include <kmessagebox.h>
+#include <kuser.h>
 #include <QtCore/QFile>
 
 #include <config.h>
 
-#include <pwd.h>
-#include <grp.h>
 #include <sys/types.h>
 #include <unistd.h>
 #include <assert.h>
@@ -272,20 +271,20 @@ ChmodJob *KIO::chmod( const KFileItemList& lstItems, int permissions, int mask,
     uid_t newOwnerID = uid_t(-1); // chown(2) : -1 means no change
     if ( !owner.isEmpty() )
     {
-        struct passwd* pw = getpwnam(QFile::encodeName(owner));
-        if ( pw == 0L )
+        const KUser kuser(owner);
+        if ( !kuser.isValid() )
             kError(250) << "No user" << owner;
         else
-            newOwnerID = pw->pw_uid;
+            newOwnerID = kuser.uid();
     }
     gid_t newGroupID = gid_t(-1); // chown(2) : -1 means no change
     if ( !group.isEmpty() )
     {
-        struct group* g = getgrnam(QFile::encodeName(group));
-        if ( g == 0L )
+        const KUserGroup kusergroup(group);
+        if ( kusergroup.isValid() )
             kError(250) << "No group" << group;
         else
-            newGroupID = g->gr_gid;
+            newGroupID = kusergroup.gid();
     }
     return ChmodJobPrivate::newJob(lstItems, permissions, mask, newOwnerID,
                                    newGroupID, recursive, flags);
diff --git a/kio/kio/job.cpp b/kio/kio/job.cpp
index 0f3eae72..06742b20 100644
--- a/kio/kio/job.cpp
+++ b/kio/kio/job.cpp
@@ -22,8 +22,14 @@
 #include "job.h"
 #include "job_p.h"
 #include "clipboardupdater_p.h"
-
-#include <config.h>
+#include "jobuidelegate.h"
+#include "kmimetype.h"
+#include "slave.h"
+#include "scheduler.h"
+#include "kdirwatch.h"
+#include "kprotocolinfo.h"
+#include "kprotocolmanager.h"
+#include "filejob.h"
 
 #include <sys/types.h>
 #include <sys/wait.h>
@@ -33,10 +39,7 @@
 #include <stdio.h>
 #include <time.h>
 #include <unistd.h>
-extern "C" {
-#include <pwd.h>
-#include <grp.h>
-}
+
 #include <QtCore/QList>
 #include <QtCore/QTimer>
 #include <QtCore/QFile>
@@ -48,15 +51,6 @@ extern "C" {
 #include <kde_file.h>
 #include <kdirnotify.h>
 
-#include "jobuidelegate.h"
-#include "kmimetype.h"
-#include "slave.h"
-#include "scheduler.h"
-#include "kdirwatch.h"
-#include "kprotocolinfo.h"
-#include "kprotocolmanager.h"
-#include "filejob.h"
-
 using namespace KIO;
 
 #define MAX_READ_BUF_SIZE  (64 * 1024)       // 64 KB at a time seems reasonable...
diff --git a/kio/kio/kacl.cpp b/kio/kio/kacl.cpp
index 29e1e8bf..3fb94176 100644
--- a/kio/kio/kacl.cpp
+++ b/kio/kio/kacl.cpp
@@ -22,20 +22,18 @@
 
 #include <config-acl.h>
 
-#include <sys/types.h>
-#include <pwd.h>
-#include <grp.h>
-#include <sys/stat.h>
-#ifdef HAVE_POSIX_ACL
-#include <sys/acl.h>
-#include <acl/libacl.h>
-#endif
 #include <QHash>
 #include <QList>
 #include <QPair>
-
 #include <kdebug.h>
+#include <kuser.h>
 
+#include <sys/types.h>
+#include <sys/stat.h>
+#ifdef HAVE_POSIX_ACL
+#  include <sys/acl.h>
+#  include <acl/libacl.h>
+#endif
 
 class KACL::KACLPrivate {
 public:
@@ -185,20 +183,12 @@ static void printACL( acl_t acl, const QString &comment )
 
 static int getUidForName( const QString& name )
 {
-    struct passwd *user = getpwnam( name.toLocal8Bit() );
-    if ( user )
-        return user->pw_uid;
-    else
-        return -1;
+    return KUser( name ).uid();
 }
 
 static int getGidForName( const QString& name )
 {
-    struct group *group = getgrnam( name.toLocal8Bit() );
-    if ( group )
-        return group->gr_gid;
-    else
-        return -1;
+    return KUserGroup( name ).gid();
 }
 #endif
 // ------------------ begin API implementation ------------
@@ -626,12 +616,11 @@ QString KACL::asString() const
 QString KACL::KACLPrivate::getUserName( uid_t uid ) const
 {
     if ( !m_usercache.contains( uid ) ) {
-        struct passwd *user = getpwuid( uid );
-        if ( user ) {
-            m_usercache.insert( uid, QString::fromLatin1(user->pw_name) );
-        }
-        else
+        const KUser kuser( uid );
+        if ( !kuser.isValid() ) {
             return QString::number( uid );
+        }
+        m_usercache.insert( uid, kuser.loginName() );
     }
     return m_usercache[uid];
 }
@@ -640,12 +629,11 @@ QString KACL::KACLPrivate::getUserName( uid_t uid ) const
 QString KACL::KACLPrivate::getGroupName( gid_t gid ) const
 {
     if ( !m_groupcache.contains( gid ) ) {
-        struct group *grp = getgrgid( gid );
-        if ( grp ) {
-            m_groupcache.insert( gid, QString::fromLatin1(grp->gr_name) );
-        }
-        else
+        const KUserGroup kusergroup( gid );
+        if ( !kusergroup.isValid() ) {
             return QString::number( gid );
+        }
+        m_groupcache.insert( gid, kusergroup.name() );
     }
     return m_groupcache[gid];
 }
diff --git a/kio/kio/kfileitem.cpp b/kio/kio/kfileitem.cpp
index dc9fb8b3..408193f4 100644
--- a/kio/kio/kfileitem.cpp
+++ b/kio/kio/kfileitem.cpp
@@ -23,11 +23,8 @@
 #include <config.h>
 
 #include <sys/time.h>
-#include <pwd.h>
-#include <grp.h>
 #include <sys/types.h>
 #include <sys/stat.h>
-#include <assert.h>
 #include <unistd.h>
 
 #include <QtCore/qdatetime.h>
@@ -50,6 +47,7 @@
 #include <kdesktopfile.h>
 #include <kmountpoint.h>
 #include <kconfiggroup.h>
+#include <kuser.h>
 #include <kfilesystemtype_p.h>
 
 static bool isKDirShare(const QString &dirpath)
@@ -682,10 +680,9 @@ QString KFileItemPrivate::user() const
         KDE_struct_stat buff;
         if ( KDE::lstat( m_url.toLocalFile( KUrl::RemoveTrailingSlash ), &buff ) == 0) // get uid/gid of the link, if it's a link
         {
-            struct passwd *pwuser = getpwuid( buff.st_uid );
-            if ( pwuser != 0 ) {
-                userName = QString::fromLocal8Bit(pwuser->pw_name);
-                m_entry.insert( KIO::UDSEntry::UDS_USER, userName );
+            const KUser kuser( buff.st_uid );
+            if ( kuser.isValid() ) {
+                m_entry.insert( KIO::UDSEntry::UDS_USER, kuser.loginName() );
             }
         }
     }
@@ -708,14 +705,12 @@ QString KFileItemPrivate::group() const
         KDE_struct_stat buff;
         if ( KDE::lstat( m_url.toLocalFile( KUrl::RemoveTrailingSlash ), &buff ) == 0) // get uid/gid of the link, if it's a link
         {
-            struct group *ge = getgrgid( buff.st_gid );
-            if ( ge != 0 ) {
-                groupName = QString::fromLocal8Bit(ge->gr_name);
-                if (groupName.isEmpty())
-                    groupName.sprintf("%d",ge->gr_gid);
+            const KUserGroup kusergroup( buff.st_gid );
+            if ( kusergroup.isValid() ) {
+                groupName = kusergroup.name();
             }
-            else
-                groupName.sprintf("%d",buff.st_gid);
+            if (groupName.isEmpty())
+                groupName = QString::number(buff.st_gid);
             m_entry.insert( KIO::UDSEntry::UDS_GROUP, groupName );
         }
     }
@@ -1045,8 +1040,7 @@ bool KFileItem::isReadable() const
         return false;
 
     /*
-      struct passwd * user = getpwuid( geteuid() );
-      bool isMyFile = (QString::fromLocal8Bit(user->pw_name) == d->m_user);
+      bool isMyFile = (KUser(KUser::UseEffectiveUID).loginName() == d->m_user);
       // This gets ugly for the group....
       // Maybe we want a static QString for the user and a static QStringList
       // for the groups... then we need to handle the deletion properly...
@@ -1075,8 +1069,7 @@ bool KFileItem::isWritable() const
         return false;
 
     /*
-      struct passwd * user = getpwuid( geteuid() );
-      bool isMyFile = (QString::fromLocal8Bit(user->pw_name) == d->m_user);
+      bool isMyFile = (KUser(KUser::UseEffectiveUID).loginName() == d->m_user);
       // This gets ugly for the group....
       // Maybe we want a static QString for the user and a static QStringList
       // for the groups... then we need to handle the deletion properly...
diff --git a/kio/kio/kurlcompletion.cpp b/kio/kio/kurlcompletion.cpp
index 63d56ae0..6e9c5ec4 100644
--- a/kio/kio/kurlcompletion.cpp
+++ b/kio/kio/kurlcompletion.cpp
@@ -48,6 +48,7 @@
 #include <kde_file.h>
 #include <kconfiggroup.h>
 #include <kshell.h>
+#include <kuser.h>
 
 #include <stdlib.h>
 #include <assert.h>
@@ -56,7 +57,6 @@
 #include <dirent.h>
 #include <unistd.h>
 #include <sys/stat.h>
-#include <pwd.h>
 #include <time.h>
 #include <sys/param.h>
 
@@ -255,11 +255,12 @@ protected:
 
         // we don't need to handle prepend here, right? ~user is always at pos 0
         assert(m_prepend.isEmpty());
-        struct passwd* pw;
-        ::setpwent();
-        while ((pw = ::getpwent()) && !terminationRequested())
-            addMatch(tilde + QString::fromLocal8Bit(pw->pw_name));
-        ::endpwent();
+        foreach (const QString &user, KUser::allUserNames()) {
+            if (terminationRequested()) {
+                break;
+            }
+            addMatch(tilde + user);
+        }
 
         addMatch(QString(tilde));
 
diff --git a/kioslave/file/file.cpp b/kioslave/file/file.cpp
index 7a9bd53e..160c0abb 100644
--- a/kioslave/file/file.cpp
+++ b/kioslave/file/file.cpp
@@ -40,8 +40,6 @@
 #include <dirent.h>
 #include <errno.h>
 #include <fcntl.h>
-#include <grp.h>
-#include <pwd.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <signal.h>
@@ -74,6 +72,7 @@
 #include <kde_file.h>
 #include <kglobal.h>
 #include <kmimetype.h>
+#include <kuser.h>
 
 using namespace KIO;
 
@@ -731,12 +730,11 @@ void FileProtocol::put( const KUrl& url, int _mode, KIO::JobFlags _flags )
 QString FileProtocol::getUserName( uid_t uid ) const
 {
     if ( !mUsercache.contains( uid ) ) {
-        struct passwd *user = getpwuid( uid );
-        if ( user ) {
-            mUsercache.insert( uid, QString::fromLatin1(user->pw_name) );
-        }
-        else
+        const KUser kuser( uid );
+        if ( !kuser.isValid() ) {
             return QString::number( uid );
+        }
+        mUsercache.insert( uid, kuser.loginName() );
     }
     return mUsercache[uid];
 }
@@ -744,12 +742,11 @@ QString FileProtocol::getUserName( uid_t uid ) const
 QString FileProtocol::getGroupName( gid_t gid ) const
 {
     if ( !mGroupcache.contains( gid ) ) {
-        struct group *grp = getgrgid( gid );
-        if ( grp ) {
-            mGroupcache.insert( gid, QString::fromLatin1(grp->gr_name) );
-        }
-        else
+        const KUserGroup kusergroup( gid );
+        if ( !kusergroup.isValid() ) {
             return QString::number( gid );
+        }
+        mGroupcache.insert( gid, kusergroup.name() );
     }
     return mGroupcache[gid];
 }
diff --git a/kioslave/file/file_unix.cpp b/kioslave/file/file_unix.cpp
index ec731834..e562062e 100644
--- a/kioslave/file/file_unix.cpp
+++ b/kioslave/file/file_unix.cpp
@@ -37,14 +37,13 @@
 #include <kdebug.h>
 #include <kconfiggroup.h>
 #include <kmountpoint.h>
+#include <kuser.h>
 
 #include <dirent.h>
 #include <string.h>
 #include <errno.h>
 #include <fcntl.h>
-#include <grp.h>
 #include <utime.h>
-#include <pwd.h>
 #include <stdlib.h>
 
 //sendfile has different semantics in different platforms
@@ -567,28 +566,28 @@ void FileProtocol::chown( const KUrl& url, const QString& owner, const QString&
 
     // get uid from given owner
     {
-        struct passwd *p = ::getpwnam(owner.toLatin1());
+        const KUser kuser(owner);
 
-        if ( ! p ) {
+        if ( ! kuser.isValid() ) {
             error( KIO::ERR_SLAVE_DEFINED,
                    i18n( "Could not get user id for given user name %1", owner ) );
             return;
         }
 
-        uid = p->pw_uid;
+        uid = kuser.uid();
     }
 
     // get gid from given group
     {
-        struct group *p = ::getgrnam(group.toLatin1());
+        const KUserGroup kusergroup(group);
 
-        if ( ! p ) {
+        if ( ! kusergroup.isValid() ) {
             error( KIO::ERR_SLAVE_DEFINED,
                    i18n( "Could not get group id for given group name %1", group ) );
             return;
         }
 
-        gid = p->gr_gid;
+        gid = kusergroup.gid();
     }
 
     if ( ::chown(_path, uid, gid) == -1 ) {
diff --git a/kpty/kpty.cpp b/kpty/kpty.cpp
index 3cf43c4f..0288b124 100644
--- a/kpty/kpty.cpp
+++ b/kpty/kpty.cpp
@@ -39,7 +39,6 @@
 #include <stdio.h>
 #include <string.h>
 #include <unistd.h>
-#include <grp.h>
 
 #if defined(HAVE_PTY_H)
 # include <pty.h>