andrius
/
mes
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

part lseek

This commit is contained in:
Jan (janneke) Nieuwenhuizen 2022-10-19 09:04:58 +02:00
parent 0695481526
commit 57bb5ae064
No known key found for this signature in database
GPG Key ID: F3C1A0D9C1D65273
1 changed files with 7 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
lib/linux/lseek.c
View File

@ -1,6 +1,6 @@
/* -*-comment-start: "//";comment-end:""-*-
* GNU Mes --- Maxwell Equations of Software
* Copyright © 2016,2017,2018,2019 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
* Copyright © 2016,2017,2018,2019,2022 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
*
* This file is part of GNU Mes.
*
@ -24,23 +24,25 @@
#include <stdio.h>
#include <sys/types.h>
#if !__MESC__ /* FIXME: We want bin/mes-mescc's x86-linux sha256sum to stay the same. */
#if !__MESC__ && !__M2__
off_t
_lseek (int filedes, off_t offset, int whence)
{
return _sys_call3 (SYS_lseek, (int) filedes, (long) offset, (int) whence);
long long_offset = offset;
return _sys_call3 (SYS_lseek, filedes, long_offset, whence);
}
#endif
off_t
lseek (int filedes, off_t offset, int whence)
{
#if !__MESC__ /* FIXME: We want bin/mes-mescc's x86-linux sha256sum to stay the same. */
#if !__MESC__ && !__M2__
if (_lseek (filedes, 0, SEEK_CUR) == -1)
return -1;
#endif
long long_offset = offset;
size_t skip = __buffered_read_clear (filedes);
if (whence == SEEK_CUR)
offset -= skip;
return _sys_call3 (SYS_lseek, (int) filedes, (long) offset, (int) whence);
return _sys_call3 (SYS_lseek, filedes, long_offset, whence);
}