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/***************************************************************
CPU-CHOWN-LINUX.H
This file contains Linux/i386/ILP32 conversion helpers
for MCPU uid/gid values -> HOST uid_t/gid_t.
PART OF : CPU - library .
USAGE : Internal only .
Copyright (C) 2026 by Andrew V.Kosteltsev.
All Rights Reserved.
***************************************************************/
#ifndef __CPU_CHOWN_LINUX_H
#define __CPU_CHOWN_LINUX_H
#include <errno.h>
#include <sys/types.h>
#include <libmcpu.h>
#include <cpu-sysdeps.h>
static int
__cpu_uid_to_host( __mpu_uint64_t uid, uid_t *host_uid )
{
uid_t u;
if( !host_uid ) return( __MCPU_EINVAL );
if( uid == __CPU_ID_NO_CHANGE )
{
*host_uid = (uid_t)-1;
return( 0 );
}
u = (uid_t)uid;
if( (__mpu_uint64_t)u != uid ) return( __MCPU_EOVERFLOW );
*host_uid = u;
return( 0 );
} /* End of __cpu_uid_to_host() */
static int
__cpu_gid_to_host( __mpu_uint64_t gid, gid_t *host_gid )
{
gid_t g;
if( !host_gid ) return( __MCPU_EINVAL );
if( gid == __CPU_ID_NO_CHANGE )
{
*host_gid = (gid_t)-1;
return( 0 );
}
g = (gid_t)gid;
if( (__mpu_uint64_t)g != gid ) return( __MCPU_EOVERFLOW );
*host_gid = g;
return( 0 );
} /* End of __cpu_gid_to_host() */
#endif /* __CPU_CHOWN_LINUX_H */
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