Annotation of sys/ddb/db_usrreq.c, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: db_usrreq.c,v 1.12 2006/03/15 21:49:40 miod Exp $ */
! 2:
! 3: /*
! 4: * Copyright (c) 1996 Michael Shalayeff. All rights reserved.
! 5: *
! 6: * Redistribution and use in source and binary forms, with or without
! 7: * modification, are permitted provided that the following conditions
! 8: * are met:
! 9: * 1. Redistributions of source code must retain the above copyright
! 10: * notice, this list of conditions and the following disclaimer.
! 11: * 2. Redistributions in binary form must reproduce the above copyright
! 12: * notice, this list of conditions and the following disclaimer in the
! 13: * documentation and/or other materials provided with the distribution.
! 14: *
! 15: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
! 16: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
! 17: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
! 18: * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
! 19: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
! 20: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
! 21: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
! 22: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
! 23: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
! 24: * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
! 25: */
! 26:
! 27: #include <sys/param.h>
! 28: #include <sys/types.h>
! 29: #include <sys/kernel.h>
! 30: #include <sys/proc.h>
! 31: #include <uvm/uvm_extern.h>
! 32: #include <sys/sysctl.h>
! 33:
! 34: #include <ddb/db_var.h>
! 35:
! 36: int db_log = 1;
! 37:
! 38: int
! 39: ddb_sysctl(int *name, u_int namelen, void *oldp, size_t *oldlenp, void *newp,
! 40: size_t newlen, struct proc *p)
! 41: {
! 42: int error, ctlval;
! 43:
! 44: /* All sysctl names at this level are terminal. */
! 45: if (namelen != 1)
! 46: return (ENOTDIR);
! 47:
! 48: switch (name[0]) {
! 49:
! 50: case DBCTL_RADIX:
! 51: return sysctl_int(oldp, oldlenp, newp, newlen, &db_radix);
! 52: case DBCTL_MAXWIDTH:
! 53: return sysctl_int(oldp, oldlenp, newp, newlen, &db_max_width);
! 54: case DBCTL_TABSTOP:
! 55: return sysctl_int(oldp, oldlenp, newp, newlen, &db_tab_stop_width);
! 56: case DBCTL_MAXLINE:
! 57: return sysctl_int(oldp, oldlenp, newp, newlen, &db_max_line);
! 58: case DBCTL_PANIC:
! 59: if (securelevel > 0)
! 60: return (sysctl_int_lower(oldp, oldlenp, newp, newlen,
! 61: &db_panic));
! 62: else {
! 63: ctlval = db_panic;
! 64: if ((error = sysctl_int(oldp, oldlenp, newp, newlen,
! 65: &ctlval)) || newp == NULL)
! 66: return (error);
! 67: if (ctlval != 1 && ctlval != 0)
! 68: return (EINVAL);
! 69: db_panic = ctlval;
! 70: return (0);
! 71: }
! 72: break;
! 73: case DBCTL_CONSOLE:
! 74: if (securelevel > 0)
! 75: return (sysctl_int_lower(oldp, oldlenp, newp, newlen,
! 76: &db_console));
! 77: else {
! 78: ctlval = db_console;
! 79: if ((error = sysctl_int(oldp, oldlenp, newp, newlen,
! 80: &ctlval)) || newp == NULL)
! 81: return (error);
! 82: if (ctlval != 1 && ctlval != 0)
! 83: return (EINVAL);
! 84: db_console = ctlval;
! 85: return (0);
! 86: }
! 87: break;
! 88: case DBCTL_LOG:
! 89: return (sysctl_int(oldp, oldlenp, newp, newlen, &db_log));
! 90: default:
! 91: return (EOPNOTSUPP);
! 92: }
! 93: /* NOTREACHED */
! 94: }
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