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[orbis-kernel] Hack sys_fstat

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This commit is contained in:
Ivan Chikish 2023-07-21 19:51:15 +03:00
parent f9e8cc60de
commit e5aa5a96e8
1 changed files with 37 additions and 2 deletions
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39
orbis-kernel/src/sys/sys_descrip.cpp
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@ -27,8 +27,43 @@ orbis::SysResult orbis::sys_closefrom(Thread *thread, sint lowfd) {
return ErrorCode::NOSYS; return ErrorCode::NOSYS;
} }
orbis::SysResult orbis::sys_fstat(Thread *thread, sint fd, ptr<Stat> ub) { orbis::SysResult orbis::sys_fstat(Thread *thread, sint fd, ptr<Stat> ub) {
ORBIS_LOG_TODO(__FUNCTION__, fd, ub); ORBIS_LOG_WARNING(__FUNCTION__, fd, ub);
return ErrorCode::NOSYS; thread->where();
if (fd == 0) {
return ErrorCode::PERM;
}
auto result = sys_lseek(thread, fd, 0, SEEK_CUR);
auto oldpos = thread->retval[0];
if (result.isError()) {
return result;
}
result = sys_lseek(thread, fd, 0, SEEK_END);
auto len = thread->retval[0];
if (result.isError()) {
return result;
}
result = sys_read(thread, fd, ub, 1);
if (result.isError()) {
*ub = {};
ub->mode = 0777 | 0x4000;
} else {
*ub = {};
ub->size = len;
ub->blksize = 1;
ub->blocks = len;
ub->mode = 0777 | 0x8000;
}
result = sys_lseek(thread, fd, oldpos, SEEK_SET);
if (result.isError()) {
return result;
}
thread->retval[0] = 0;
return {};
} }
orbis::SysResult orbis::sys_nfstat(Thread *thread, sint fd, orbis::SysResult orbis::sys_nfstat(Thread *thread, sint fd,
ptr<struct nstat> sb) { ptr<struct nstat> sb) {