---
name: "cr_seeotheruids"
section: "9"
platform: "linux"
package: "freebsd-manpages"
version: "6.0-5"
release: "Debian 4.0 (Etch)"
platforms: ["linux"]
url: "https://new.carta.tech/cr_seeotheruids"
---

# cr\_seeotheruids(9)

determine visibility of objects given their user credentials

## NAME

**cr\_seeotheruids** – determine visibility of objects given their user credentials

## SYNOPSIS

*int*\

**cr\_seeotheruids**(*struct ucred \*u1*, *struct ucred \*u2*);

## DESCRIPTION

This function determines the visibility of objects in the kernel based on the real user IDs in the credentials *u1* and *u2* associated with them.

The visibility of objects is influenced by the [sysctl(8)](/sysctl/8.md) variable *security.bsd.see\_other\_uids*. If this variable is non-zero then all objects in the kernel are visible to each other irrespective of their user IDs. If this variable is zero then the object with credentials *u2* is visible to the object with credentials *u1* if either *u1* is the super-user credential, or if *u1* and *u2* have the same real user ID.

## SYSCTL VARIABLES

- *security.bsd.see\_other\_uids*

  Must be non-zero if objects with unprivileged credentials are to be able to see each other.

## RETURN VALUES

This function returns zero if the object with credential *u1* can “see” the object with credential *u2*, or ESRCH otherwise.

## SEE ALSO

[cr\_seeothergids(9)](/cr_seeothergids/9.md), [p\_candebug(9)](/p_candebug/9.md)