1 /* 2 * Copyright (c) 2004 The DragonFly Project. All rights reserved. 3 * 4 * This code is derived from software contributed to The DragonFly Project 5 * by Joerg Sonnenberger <joerg@bec.de>. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 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 15 * the documentation and/or other materials provided with the 16 * distribution. 17 * 3. Neither the name of The DragonFly Project nor the names of its 18 * contributors may be used to endorse or promote products derived 19 * from this software without specific, prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 24 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 25 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, 27 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 28 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 29 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 31 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * $DragonFly: src/lib/libkcore/kcore.c,v 1.3 2004/12/20 02:40:07 dillon Exp $ 35 */ 36 37 #include <sys/types.h> 38 #include <sys/fcntl.h> 39 40 #include <kcore.h> 41 #include <kvm.h> 42 #include <stdlib.h> 43 44 #include "kcore_private.h" 45 46 struct kcore_data kcore_global; 47 48 struct kcore_data * 49 kcore_open(const char *execfile, const char *corefile, char *errbuf) 50 { 51 struct kcore_data *kc; 52 53 kc = malloc(sizeof(*kc)); 54 if (kc == NULL) 55 return(NULL); 56 kc->kd = kvm_openfiles(execfile, corefile, NULL, O_RDONLY, errbuf); 57 if (kc->kd == NULL) { 58 free(kc); 59 return(NULL); 60 } 61 return(kc); 62 } 63 64 int 65 kcore_close(struct kcore_data *kc) 66 { 67 int retval; 68 69 if (kc == NULL) { 70 retval = kvm_close(kcore_global.kd); 71 return(retval); 72 } 73 74 retval = kvm_close(kc->kd); 75 free(kc); 76 return(retval); 77 } 78