docs: Added All NetBSD Manuals

1 files changed, 105 insertions, 0 deletions

diff --git a/static/netbsd/man2/mprotect.2 b/static/netbsd/man2/mprotect.2
new file mode 100644
index 00000000..2625c5bf
--- /dev/null
+++ b/static/netbsd/man2/mprotect.2
@@ -0,0 +1,105 @@
+.\"	$NetBSD: mprotect.2,v 1.29 2019/09/09 07:46:49 wiz Exp $
+.\"
+.\" Copyright (c) 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"	@(#)mprotect.2	8.1 (Berkeley) 6/9/93
+.\"
+.Dd September 8, 2019
+.Dt MPROTECT 2
+.Os
+.Sh NAME
+.Nm mprotect
+.Nd control the protection of pages
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In sys/mman.h
+.Ft int
+.Fn mprotect "void *addr" "size_t len" "int prot"
+.Sh DESCRIPTION
+The
+.Nm
+system call
+changes the specified pages to have protection
+.Fa prot .
+Not all implementations will guarantee protection on a page basis;
+the granularity of protection changes may be as large as an entire region.
+.Pp
+The protections (region accessibility) are specified in the
+.Fa prot
+argument by
+.Tn OR Ns 'ing
+the following values:
+.Bl -tag -width "Dv MAP_WRITE" -offset indent
+.It Dv PROT_EXEC
+Pages may be executed.
+.It Dv PROT_READ
+Pages may be read.
+.It Dv PROT_WRITE
+Pages may be written.
+.It Dv PROT_NONE
+Placeholder when requesting no access permission.
+.El
+.Sh RETURN VALUES
+Upon successful completion,
+a value of 0 is returned.
+Otherwise, a value of \-1 is returned and
+.Va errno
+is set to indicate the error.
+.Sh ERRORS
+.Bl -tag -width Er
+.It Bq Er EACCES
+A memory protection violation occurred.
+.Pp
+The
+.Dv PROT_EXEC
+flag was attempted on pages which belong to a file system mounted with the
+.Dv NOEXEC
+flag.
+.Pp
+The new protection is less restrictive than the protection originally
+set with
+.Xr mmap 2 .
+.Pp
+PaX mprotect restrictions prohibit the requested protection.
+.It Bq Er EINVAL
+An invalid memory range, or invalid parameters were provided.
+.It Bq Er ENOMEM
+A resource shortage occurred while internally calling
+.Xr uvm_map_protect 9 .
+.El
+.Sh SEE ALSO
+.Xr madvise 2 ,
+.Xr mincore 2 ,
+.Xr msync 2 ,
+.Xr munmap 2
+.Sh HISTORY
+The
+.Nm
+function first appeared in SunOS 4.0 and subsequently
+.Bx 4.4 .