projects / apple / libc.git / blame
| Commit | Line | Data |
|---|---|---|
| 9385eb3d A |
1 | /* |
| 2 | * Copyright 2001 The FreeBSD Project. All Rights Reserved. | |
| 3 | * | |
| 4 | * Redistribution and use in source and binary forms, with or without | |
| 5 | * modification, are permitted provided that the following conditions | |
| 6 | * are met: | |
| 7 | * | |
| 8 | * 1. Redistributions of source code must retain the above copyright | |
| 9 | * notice, this list of conditions and the following disclaimer. | |
| 10 | * 2. Redistributions in binary form must reproduce the above copyright | |
| 11 | * notice, this list of conditions and the following disclaimer in the | |
| 12 | * documentation and/or other materials provided with the distribution. | |
| 13 | * | |
| 14 | * THIS SOFTWARE IS PROVIDED BY THE FREEBSD PROJECT ``AS IS'' AND ANY | |
| 15 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | |
| 16 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
| 17 | * DISCLAIMED. IN NO EVENT SHALL THE FREEBSD PROJECT BE LIABLE FOR | |
| 18 | * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
| 19 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
| 20 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 21 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
| 22 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
| 23 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| 24 | * SUCH DAMAGE. | |
| 25 | */ | |
| 26 | ||
| 27 | #include <sys/cdefs.h> | |
| 28 | __FBSDID("$FreeBSD: src/lib/libc/gen/sysctlnametomib.c,v 1.4 2003/01/04 00:11:11 tjr Exp $"); | |
| 29 | ||
| 30 | #include <sys/types.h> | |
| 31 | #include <sys/sysctl.h> | |
| 32 | #include <string.h> | |
| 33 | ||
| 23e20b00 A |
34 | extern int __sysctl(int *name, u_int namelen, void *oldp, size_t *oldlenp, |
| 35 | void *newp, size_t newlen); | |
| 36 | ||
| 9385eb3d A |
37 | /* |
| 38 | * This function uses a presently undocumented interface to the kernel | |
| 39 | * to walk the tree and get the type so it can print the value. | |
| 40 | * This interface is under work and consideration, and should probably | |
| 41 | * be killed with a big axe by the first person who can find the time. | |
| 42 | * (be aware though, that the proper interface isn't as obvious as it | |
| 43 | * may seem, there are various conflicting requirements. | |
| 44 | */ | |
| 45 | int | |
| 46 | sysctlnametomib(const char *name, int *mibp, size_t *sizep) | |
| 47 | { | |
| 48 | int oid[2]; | |
| 49 | int error; | |
| 50 | ||
| 51 | oid[0] = 0; | |
| 52 | oid[1] = 3; | |
| 53 | ||
| 54 | *sizep *= sizeof (int); | |
| 23e20b00 | 55 | error = __sysctl(oid, 2, mibp, sizep, (void *)name, strlen(name)); |
| 9385eb3d A |
56 | *sizep /= sizeof (int); |
| 57 | return (error); | |
| 58 | } |