setegid#

Synopsis#

#include <unistd.h>

int setegid(gid_t gid);

Status#

Declared, not implemented

Conformance#

IEEE Std 1003.1-2017

Description#

If gid is equal to the real group ID or the saved set-group-ID, or if the process has appropriate privileges, setegid() shall set the effective group ID of the calling process to gid; the real group ID, saved set-group-ID, and any supplementary group IDs shall remain unchanged.

The setegid() function shall not affect the supplementary group list in any way.

Return value#

Upon successful completion, 0 shall be returned; otherwise, -1 shall be returned and errno set to indicate the error.

Errors#

The setegid() function shall fail if:

  • EINVAL - The value of the gid argument is invalid and is not supported by the implementation.

  • EPERM - The process does not have appropriate privileges and gid does not match the real group ID or the saved set-group-ID.

Tests#

Untested

Known bugs#

None

See Also#

  1. Standard library functions

  2. Table of Contents