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| author | Alejandro Colomar <alx@kernel.org> | 2023-03-17 17:08:01 +0100 |
|---|---|---|
| committer | Alejandro Colomar <alx@kernel.org> | 2023-03-30 15:14:55 +0200 |
| commit | 4131356cdab8d37fc395ca5466a0401c8573380c (patch) | |
| tree | 8c4c6f1c3172358b735b481cbbfdd9cc04b00ed9 /man2/setfsgid.2 | |
| parent | fd00f831b52d61a91d59cb3b46182869145d9700 (diff) | |
| download | man-pages-4131356cdab8.tar.gz | |
man*/, man-pages.7: VERSIONS, STANDARDS, HISTORY: Reorganize sections
- Add a new HISTORY section that covers the history of an API, both
regarding implementations and regarding old standards. This was
previously covered in VERSIONS, and in some cases in STANDARDS.
- Repurpose VERSIONS to cover differing implementations in _current_
systems.
- STANDARDS is reduced to only cover current versions of standards.
That basically means only C11 (C99 has been superseeded by C11; C17
is just a bugfix of C11, so not really a new version), and
POSIX.1-2008 (*-2001 was superseeded by *-2008; *-2017 was just a
bugfix for *-2008). The section also mentions for example 'Linux',
'GNU' or 'BSD' when a non-standard API is Linux- or GNU-only or if
it's (de-facto) standard in the BSDs.
- In some cases content that should go into one of these sections was
in NOTES. Move it from there to where it corresponds.
- In the SYNOPSIS, I added [[deprecated]] in some functions that I
found are deprecated by the relevant standards.
- A few other related changes...
Cc: Oskari Pirhonen <xxc3ncoredxx@gmail.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
Diffstat (limited to 'man2/setfsgid.2')
| -rw-r--r-- | man2/setfsgid.2 | 32 |
1 files changed, 15 insertions, 17 deletions
diff --git a/man2/setfsgid.2 b/man2/setfsgid.2 index eb35af7e1d..bd17d69999 100644 --- a/man2/setfsgid.2 +++ b/man2/setfsgid.2 @@ -19,7 +19,7 @@ Standard C library .nf .B #include <sys/fsuid.h> .PP -.BI "int setfsgid(gid_t " fsgid ); +.BI "[[deprecated]] int setfsgid(gid_t " fsgid ); .fi .SH DESCRIPTION On Linux, a process has both a filesystem group ID and an effective group ID. @@ -48,14 +48,21 @@ saved set-group-ID, or current the filesystem user ID. .SH RETURN VALUE On both success and failure, this call returns the previous filesystem group ID of the caller. -.SH VERSIONS -This system call is present since Linux 1.2. -.\" This system call is present since Linux 1.1.44 -.\" and in libc since libc 4.7.6. .SH STANDARDS -.BR setfsgid () -is Linux-specific and should not be used in programs intended -to be portable. +Linux. +.SH HISTORY +Linux 1.2. +.\" Linux 1.1.44 +.\" and in libc since libc 4.7.6. +.SS C library/kernel differences +In glibc 2.15 and earlier, +when the wrapper for this system call determines that the argument can't be +passed to the kernel without integer truncation (because the kernel +is old and does not support 32-bit group IDs), +it will return \-1 and set \fIerrno\fP to +.B EINVAL +without attempting +the system call. .SH NOTES The filesystem group ID concept and the .BR setfsgid () @@ -78,15 +85,6 @@ supporting 32-bit IDs. The glibc .BR setfsgid () wrapper function transparently deals with the variation across kernel versions. -.SS C library/kernel differences -In glibc 2.15 and earlier, -when the wrapper for this system call determines that the argument can't be -passed to the kernel without integer truncation (because the kernel -is old and does not support 32-bit group IDs), -it will return \-1 and set \fIerrno\fP to -.B EINVAL -without attempting -the system call. .SH BUGS No error indications of any kind are returned to the caller, and the fact that both successful and unsuccessful calls return |