Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

Fix #390, OS_SelectFd... API's check that Set != NULL #391

Closed
wants to merge 2 commits into from
Closed

Fix #390, OS_SelectFd... API's check that Set != NULL #391

Changes from 1 commit
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
b78e4d3
fix for #390
CDKnightNASA Mar 26, 2020
6a59242
OS_SelectSingle() also needs null pointer check
CDKnightNASA Mar 26, 2020
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
59 changes: 42 additions & 17 deletions src/os/shared/osapi-select.c
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -102,8 +102,16 @@ int32 OS_SelectMultiple(OS_FdSet *ReadSet, OS_FdSet *WriteSet, int32 msecs)
*-----------------------------------------------------------------*/
int32 OS_SelectFdZero(OS_FdSet *Set)
{
memset(Set,0,sizeof(OS_FdSet));
return OS_SUCCESS;
int32 return_code = OS_SUCCESS;
if (Set == NULL)
{
return_code = OS_INVALID_POINTER;
}
else
{
memset(Set,0,sizeof(OS_FdSet));
}
return return_code;
} /* end OS_SelectFdZero */

/*----------------------------------------------------------------
Expand All @@ -116,13 +124,20 @@ int32 OS_SelectFdZero(OS_FdSet *Set)
*-----------------------------------------------------------------*/
int32 OS_SelectFdAdd(OS_FdSet *Set, uint32 objid)
{
int32 return_code;
int32 return_code = OS_SUCCESS;
uint32 local_id;

return_code = OS_ObjectIdToArrayIndex(OS_OBJECT_TYPE_OS_STREAM, objid, &local_id);
if (return_code == OS_SUCCESS)
if (Set == NULL)
{
return_code = OS_INVALID_POINTER;
}
else
{
Set->object_ids[local_id >> 3] |= 1 << (local_id & 0x7);
return_code = OS_ObjectIdToArrayIndex(OS_OBJECT_TYPE_OS_STREAM, objid, &local_id);
if (return_code == OS_SUCCESS)
{
Set->object_ids[local_id >> 3] |= 1 << (local_id & 0x7);
}
}

return return_code;
Expand All @@ -138,13 +153,20 @@ int32 OS_SelectFdAdd(OS_FdSet *Set, uint32 objid)
*-----------------------------------------------------------------*/
int32 OS_SelectFdClear(OS_FdSet *Set, uint32 objid)
{
int32 return_code;
int32 return_code = OS_SUCCESS;
uint32 local_id;

return_code = OS_ObjectIdToArrayIndex(OS_OBJECT_TYPE_OS_STREAM, objid, &local_id);
if (return_code == OS_SUCCESS)
if (Set == NULL)
{
return_code = OS_INVALID_POINTER;
}
else
{
Set->object_ids[local_id >> 3] &= ~(1 << (local_id & 0x7));
return_code = OS_ObjectIdToArrayIndex(OS_OBJECT_TYPE_OS_STREAM, objid, &local_id);
if (return_code == OS_SUCCESS)
{
Set->object_ids[local_id >> 3] &= ~(1 << (local_id & 0x7));
}
}

return return_code;
Expand All @@ -160,16 +182,19 @@ int32 OS_SelectFdClear(OS_FdSet *Set, uint32 objid)
*-----------------------------------------------------------------*/
bool OS_SelectFdIsSet(OS_FdSet *Set, uint32 objid)
{
int32 return_code;
uint32 local_id;

return_code = OS_ObjectIdToArrayIndex(OS_OBJECT_TYPE_OS_STREAM, objid, &local_id);
if (return_code != OS_SUCCESS)
if (Set != NULL)
{
return false;
uint32 local_id;
int32 return_code = OS_ObjectIdToArrayIndex(OS_OBJECT_TYPE_OS_STREAM, objid, &local_id);

if (return_code == OS_SUCCESS)
{
return ((Set->object_ids[local_id >> 3] >> (local_id & 0x7)) & 0x1);
}
}

return ((Set->object_ids[local_id >> 3] >> (local_id & 0x7)) & 0x1);
/* error occurred (Set == NULL or ObjjectIdToArrayIndex returned error), return false */
return false;
} /* end OS_SelectFdIsSet */