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