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| author | Michael Kerrisk <mtk.manpages@gmail.com> | 2010-11-22 08:50:57 +0100 |
|---|---|---|
| committer | Michael Kerrisk <mtk.manpages@gmail.com> | 2010-11-22 08:52:48 +0100 |
| commit | ea03a3acf03288a92b2d749c407e1371f1ed27ef (patch) | |
| tree | 73e9ec631b8aeafa8c0645652bc92b529c2ad0d4 | |
| parent | ae67a2cdf3ee4e77774704370dec6f10a92e49c9 (diff) | |
| download | man-pages-ea03a3acf03288a92b2d749c407e1371f1ed27ef.tar.gz | |
setresuid.2: Add NOTES explaining 32-bit system calls added in Linux 2.4
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
| -rw-r--r-- | man2/setresuid.2 | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/man2/setresuid.2 b/man2/setresuid.2 index 0eb936c533..d93240e1bc 100644 --- a/man2/setresuid.2 +++ b/man2/setresuid.2 @@ -87,6 +87,22 @@ they also appear on HP-UX and some of the BSDs. Under HP-UX and FreeBSD, the prototype is found in .IR <unistd.h> . Under Linux the prototype is provided by glibc since version 2.3.2. + +The original Linux +.BR setresuid () +and +.BR setresgid () +system calls supported only 16-bit user and group IDs. +Subsequently, Linux 2.4 added +.BR setresuid32 () +and +.BR setresgid32 (), +supporting 32-bit IDs. +The glibc +.BR setresuid () +and +.BR setresgid () +wrapper functions transparently deal with the variations across kernel versions. .SH "SEE ALSO" .BR getresuid (2), .BR getuid (2), |