diff options
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 |