1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #include <gmem.h> 27 #include <gmem_util.h> 28 29 #include <errno.h> 30 #include <stdarg.h> 31 #include <string.h> 32 #include <fm/fmd_api.h> 33 #include <sys/fm/protocol.h> 34 35 int 36 gmem_set_errno(int err) 37 { 38 errno = err; 39 return (-1); 40 } 41 42 void * 43 gmem_buf_read(fmd_hdl_t *hdl, fmd_case_t *cp, const char *bufname, size_t bufsz) 44 { 45 void *buf; 46 size_t sz; 47 48 if ((sz = fmd_buf_size(hdl, cp, bufname)) == 0) { 49 (void) gmem_set_errno(ENOENT); 50 return (NULL); 51 } else if (sz != bufsz) { 52 (void) gmem_set_errno(EINVAL); 53 return (NULL); 54 } 55 56 buf = fmd_hdl_alloc(hdl, bufsz, FMD_SLEEP); 57 fmd_buf_read(hdl, cp, bufname, buf, bufsz); 58 59 return (buf); 60 } 61 62 void 63 gmem_vbufname(char *buf, size_t bufsz, const char *fmt, va_list ap) 64 { 65 char *c; 66 67 (void) vsnprintf(buf, bufsz, fmt, ap); 68 69 for (c = buf; *c != '\0'; c++) { 70 if (*c == ' ' || *c == '/' || *c == ':') 71 *c = '_'; 72 } 73 } 74 75 void 76 gmem_bufname(char *buf, size_t bufsz, const char *fmt, ...) 77 { 78 va_list ap; 79 80 va_start(ap, fmt); 81 gmem_vbufname(buf, bufsz, fmt, ap); 82 va_end(ap); 83 } 84 85 void 86 gmem_list_append(gmem_list_t *lp, void *new) 87 { 88 gmem_list_t *p = lp->l_prev; /* p = tail list element */ 89 gmem_list_t *q = new; /* q = new list element */ 90 91 lp->l_prev = q; 92 q->l_prev = p; 93 q->l_next = NULL; 94 95 if (p != NULL) 96 p->l_next = q; 97 else 98 lp->l_next = q; 99 } 100 101 void 102 gmem_list_prepend(gmem_list_t *lp, void *new) 103 { 104 gmem_list_t *p = new; /* p = new list element */ 105 gmem_list_t *q = lp->l_next; /* q = head list element */ 106 107 lp->l_next = p; 108 p->l_prev = NULL; 109 p->l_next = q; 110 111 if (q != NULL) 112 q->l_prev = p; 113 else 114 lp->l_prev = p; 115 } 116 117 void 118 gmem_list_insert_before(gmem_list_t *lp, void *before_me, void *new) 119 { 120 gmem_list_t *p = before_me; 121 gmem_list_t *q = new; 122 123 if (p == NULL || p->l_prev == NULL) { 124 gmem_list_prepend(lp, new); 125 return; 126 } 127 128 q->l_prev = p->l_prev; 129 q->l_next = p; 130 p->l_prev = q; 131 q->l_prev->l_next = q; 132 } 133 134 void 135 gmem_list_insert_after(gmem_list_t *lp, void *after_me, void *new) 136 { 137 gmem_list_t *p = after_me; 138 gmem_list_t *q = new; 139 140 if (p == NULL || p->l_next == NULL) { 141 gmem_list_append(lp, new); 142 return; 143 } 144 145 q->l_next = p->l_next; 146 q->l_prev = p; 147 p->l_next = q; 148 q->l_next->l_prev = q; 149 } 150 151 void 152 gmem_list_delete(gmem_list_t *lp, void *existing) 153 { 154 gmem_list_t *p = existing; 155 156 if (p->l_prev != NULL) 157 p->l_prev->l_next = p->l_next; 158 else 159 lp->l_next = p->l_next; 160 161 if (p->l_next != NULL) 162 p->l_next->l_prev = p->l_prev; 163 else 164 lp->l_prev = p->l_prev; 165 } 166