diff options
Diffstat (limited to 'lib/libc/gen/sysctl.3')
| -rw-r--r-- | lib/libc/gen/sysctl.3 | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/lib/libc/gen/sysctl.3 b/lib/libc/gen/sysctl.3 index 6cac795..f268cd3 100644 --- a/lib/libc/gen/sysctl.3 +++ b/lib/libc/gen/sysctl.3 @@ -44,11 +44,11 @@ .Fn sysctl "int *name" "u_int namelen" "void *oldp" "size_t *oldlenp" "void *newp" "size_t newlen" .Sh DESCRIPTION The -.Nm sysctl +.Fn sysctl function retrieves system information and allows processes with appropriate privileges to set system information. The information available from -.Nm sysctl +.Fn sysctl consists of integers, strings, and tables. Information may be retrieved and set from the command interface using the @@ -56,12 +56,12 @@ using the utility. .Pp Unless explicitly noted below, -.Nm sysctl +.Fn sysctl returns a consistent snapshot of the data requested. Consistency is obtained by locking the destination buffer into memory so that the data may be copied out without blocking. Calls to -.Nm sysctl +.Fn sysctl are serialized to avoid deadlock. .Pp The state is described using a ``Management Information Base'' (MIB) @@ -88,7 +88,7 @@ and should be set to NULL. .Pp The size of the available data can be determined by calling -.Nm sysctl +.Fn sysctl with a NULL parameter for .Fa oldp . The size of the available data will be returned in the location pointed to by @@ -154,10 +154,10 @@ sysctl(mib, 2, p, &len, NULL, 0); .Sh CTL_DEBUG The debugging variables vary from system to system. A debugging variable may be added or deleted without need to recompile -.Nm sysctl +.Fn sysctl to know about it. Each time it runs, -.Nm sysctl +.Fn sysctl gets the list of debugging variables from the kernel and displays their current values. The system defines twenty @@ -583,7 +583,7 @@ The returned data consists of a .El .Sh RETURN VALUES If the call to -.Nm sysctl +.Fn sysctl is successful, 0 is returned. Otherwise \-1 is returned and .Va errno @@ -649,5 +649,5 @@ definitions for fourth level UDP identifiers .Xr sysctl 8 .Sh HISTORY The -.Nm sysctl +.Fn sysctl function first appeared in 4.4BSD. |
