standards/58805: unistd.h: missing getresuid/getresgid/setresuid/setresgid

[campbell+netbsd%mumble.net@localhost]

>Number:         58805
>Category:       standards
>Synopsis:       unistd.h: missing getresuid/getresgid/setresuid/setresgid
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    standards-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Nov 01 23:30:01 +0000 2024
>Originator:     Taylor R Campbell
>Release:        current
>Organization:
The ResBSD Foundation
>Environment:
>Description:
`The getresuid() function shall store the real user ID, effective user ID, and saved set-user-ID of the calling process in the locations pointed to by the arguments ruid, euid, and suid, respectively.'

https://pubs.opengroup.org/onlinepubs/9799919799/functions/getresuid.html

`The getresgid() function shall store the real group ID, effective group ID, and saved set-group-ID of the calling process in the locations pointed to by the arguments rgid, egid, and sgid, respectively.'

https://pubs.opengroup.org/onlinepubs/9799919799/functions/getresgid.html

`The setresuid() function shall set the real user ID, effective user ID, and saved set-user-ID of the calling process to the values specified by ruid, euid, and suid, respectively.'

https://pubs.opengroup.org/onlinepubs/9799919799/functions/setresuid.html

`The setresgid() function shall set the real group ID, effective group ID, and saved set-group-ID of the calling process to the values specified by rgid, egid, and sgid, respectively.'

https://pubs.opengroup.org/onlinepubs/9799919799/functions/setresgid.html
>How-To-Repeat:
standards coding
>Fix:
Yes, please!