include/kvm.h

   1 /*      $OpenBSD: kvm.h,v 1.17 2012/12/05 23:19:57 deraadt Exp $        */
   2 /*      $NetBSD: kvm.h,v 1.7 1996/04/19 12:02:50 leo Exp $      */
   3
   4 /*-
   5  * Copyright (c) 1989, 1993
   6  *      The Regents of the University of California.  All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  * 3. Neither the name of the University nor the names of its contributors
  17  *    may be used to endorse or promote products derived from this software
  18  *    without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30  * SUCH DAMAGE.
  31  *
  32  *      @(#)kvm.h       8.1 (Berkeley) 6/2/93
  33  */
  34
  35 #ifndef _KVM_H_
  36 #define _KVM_H_
  37
  38 /* Default version symbol. */
  39 #define VRS_SYM         "_version"
  40 #define VRS_KEY         "VERSION"
  41
  42 /*
  43  * Flag for kvm_open* that disables opening of any files. We're just
  44  * interested in a handle to run sysctls.
  45  */
  46 #define KVM_NO_FILES    0x80000000
  47
  48 #include <nlist.h>
  49 #include <stdio.h>
  50
  51 __BEGIN_DECLS
  52
  53 typedef struct __kvm kvm_t;
  54
  55 struct kinfo_proc;
  56 int       kvm_close(kvm_t *);
  57 int       kvm_dump_inval(kvm_t *);
  58 int       kvm_dump_mkheader(kvm_t *, off_t);
  59 int       kvm_dump_wrtheader(kvm_t *, FILE *, int);
  60 char    **kvm_getargv(kvm_t *, const struct kinfo_proc *, int);
  61 char    **kvm_getenvv(kvm_t *, const struct kinfo_proc *, int);
  62 char     *kvm_geterr(kvm_t *);
  63 int       kvm_getloadavg(kvm_t *, double [], int);
  64 char     *kvm_getfiles(kvm_t *, int, int, int *);
  65 struct kinfo_file2 *
  66           kvm_getfile2(kvm_t *, int, int, size_t, int *);
  67 struct kinfo_proc *
  68           kvm_getprocs(kvm_t *, int, int, size_t, int *);
  69 int       kvm_nlist(kvm_t *, struct nlist *);
  70 kvm_t    *kvm_open(const char *, const char *, const char *, int, const char *);
  71 kvm_t    *kvm_openfiles(const char *, const char *, const char *,
  72                 int, char *);
  73 ssize_t   kvm_read(kvm_t *, unsigned long, void *, size_t)
  74                 __attribute__((__bounded__(__buffer__,3,4)));
  75 ssize_t   kvm_write(kvm_t *, unsigned long, const void *, size_t)
  76                 __attribute__((__bounded__(__buffer__,3,4)));
  77
  78 __END_DECLS
  79
  80 #endif /* !_KVM_H_ */