diff options
Diffstat (limited to 'man2/setgid.2')
| -rw-r--r-- | man2/setgid.2 | 28 |
1 files changed, 15 insertions, 13 deletions
diff --git a/man2/setgid.2 b/man2/setgid.2 index 1e14a7271a..6012295231 100644 --- a/man2/setgid.2 +++ b/man2/setgid.2 @@ -54,19 +54,7 @@ The calling process is not privileged (does not have the .I gid does not match the real group ID or saved set-group-ID of the calling process. -.SH STANDARDS -POSIX.1-2001, POSIX.1-2008, SVr4. -.SH NOTES -The original Linux -.BR setgid () -system call supported only 16-bit group IDs. -Subsequently, Linux 2.4 added -.BR setgid32 () -supporting 32-bit IDs. -The glibc -.BR setgid () -wrapper function transparently deals with the variation across kernel versions. -.\" +.SH VERSIONS .SS C library/kernel differences At the kernel level, user IDs and group IDs are a per-thread attribute. However, POSIX requires that all threads in a process @@ -81,6 +69,20 @@ that when one thread changes credentials, all of the other threads in the process also change their credentials. For details, see .BR nptl (7). +.SH STANDARDS +POSIX.1-2008. +.SH HISTORY +POSIX.1-2001, SVr4. +.PP +The original Linux +.BR setgid () +system call supported only 16-bit group IDs. +Subsequently, Linux 2.4 added +.BR setgid32 () +supporting 32-bit IDs. +The glibc +.BR setgid () +wrapper function transparently deals with the variation across kernel versions. .SH SEE ALSO .BR getgid (2), .BR setegid (2), |