Annotation of embedaddon/istgt/src/istgt_iscsi_param.c, revision 1.1
1.1 ! misho 1: /*
! 2: * Copyright (C) 2008-2010 Daisuke Aoyama <aoyama@peach.ne.jp>.
! 3: * All rights reserved.
! 4: *
! 5: * Redistribution and use in source and binary forms, with or without
! 6: * modification, are permitted provided that the following conditions
! 7: * are met:
! 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 AUTHOR AND CONTRIBUTORS ``AS IS'' AND
! 15: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 16: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 17: * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
! 18: * FOR 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:
! 28: #ifdef HAVE_CONFIG_H
! 29: #include "config.h"
! 30: #endif
! 31:
! 32: #include <stdint.h>
! 33: #include <inttypes.h>
! 34:
! 35: #include <stdio.h>
! 36: #include <stdlib.h>
! 37: #include <string.h>
! 38:
! 39: #include "istgt.h"
! 40: #include "istgt_log.h"
! 41: #include "istgt_misc.h"
! 42: #include "istgt_iscsi.h"
! 43: #include "istgt_iscsi_param.h"
! 44:
! 45: void
! 46: istgt_iscsi_param_free(ISCSI_PARAM *params)
! 47: {
! 48: ISCSI_PARAM *param, *next_param;
! 49:
! 50: if (params == NULL)
! 51: return;
! 52: for (param = params; param != NULL; param = next_param) {
! 53: next_param = param->next;
! 54: xfree(param->list);
! 55: xfree(param->val);
! 56: xfree(param->key);
! 57: xfree(param);
! 58: }
! 59: }
! 60:
! 61: ISCSI_PARAM *
! 62: istgt_iscsi_param_find(ISCSI_PARAM *params, const char *key)
! 63: {
! 64: ISCSI_PARAM *param;
! 65:
! 66: if (params == NULL || key == NULL)
! 67: return NULL;
! 68: for (param = params; param != NULL; param = param->next) {
! 69: if (param->key != NULL && param->key[0] == key[0]
! 70: && strcasecmp(param->key, key) == 0) {
! 71: return param;
! 72: }
! 73: }
! 74: return NULL;
! 75: }
! 76:
! 77: int
! 78: istgt_iscsi_param_del(ISCSI_PARAM **params, const char *key)
! 79: {
! 80: ISCSI_PARAM *param, *prev_param = NULL;
! 81:
! 82: ISTGT_TRACELOG(ISTGT_TRACE_DEBUG, "del %s\n", key);
! 83: if (params == NULL || key == NULL)
! 84: return 0;
! 85: for (param = *params; param != NULL; param = param->next) {
! 86: if (param->key != NULL && param->key[0] == key[0]
! 87: && strcasecmp(param->key, key) == 0) {
! 88: if (prev_param != NULL) {
! 89: prev_param->next = param->next;
! 90: } else {
! 91: *params = param->next;
! 92: }
! 93: param->next = NULL;
! 94: istgt_iscsi_param_free(param);
! 95: return 0;
! 96: }
! 97: prev_param = param;
! 98: }
! 99: return -1;
! 100: }
! 101:
! 102: int
! 103: istgt_iscsi_param_add(ISCSI_PARAM **params, const char *key, const char *val, const char *list, int type)
! 104: {
! 105: ISCSI_PARAM *param, *last_param;
! 106:
! 107: ISTGT_TRACELOG(ISTGT_TRACE_DEBUG, "add %s=%s, list=[%s], type=%d\n",
! 108: key, val, list, type);
! 109: if (key == NULL)
! 110: return -1;
! 111: param = istgt_iscsi_param_find(*params, key);
! 112: if (param != NULL) {
! 113: istgt_iscsi_param_del(params, key);
! 114: }
! 115: param = xmalloc(sizeof *param);
! 116: memset(param, 0, sizeof *param);
! 117: param->next = NULL;
! 118: param->key = xstrdup(key);
! 119: param->val = xstrdup(val);
! 120: param->list = xstrdup(list);
! 121: param->type = type;
! 122:
! 123: last_param = *params;
! 124: if (last_param != NULL) {
! 125: while (last_param->next != NULL) {
! 126: last_param = last_param->next;
! 127: }
! 128: last_param->next = param;
! 129: } else {
! 130: *params = param;
! 131: }
! 132:
! 133: return 0;
! 134: }
! 135:
! 136: int
! 137: istgt_iscsi_param_set(ISCSI_PARAM *params, const char *key, const char *val)
! 138: {
! 139: ISCSI_PARAM *param;
! 140:
! 141: ISTGT_TRACELOG(ISTGT_TRACE_DEBUG, "set %s=%s\n", key, val);
! 142: param = istgt_iscsi_param_find(params, key);
! 143: if (param == NULL) {
! 144: ISTGT_TRACELOG(ISTGT_TRACE_DEBUG, "no key %s\n", key);
! 145: return -1;
! 146: }
! 147:
! 148: xfree(param->val);
! 149: param->val = xstrdup(val);
! 150:
! 151: return 0;
! 152: }
! 153:
! 154: int
! 155: istgt_iscsi_param_set_int(ISCSI_PARAM *params, const char *key, int val)
! 156: {
! 157: char buf[MAX_TMPBUF];
! 158: ISCSI_PARAM *param;
! 159:
! 160: ISTGT_TRACELOG(ISTGT_TRACE_DEBUG, "set %s=%d\n", key, val);
! 161: param = istgt_iscsi_param_find(params, key);
! 162: if (param == NULL) {
! 163: ISTGT_TRACELOG(ISTGT_TRACE_DEBUG, "no key %s\n", key);
! 164: return -1;
! 165: }
! 166:
! 167: xfree(param->val);
! 168: snprintf(buf, sizeof buf, "%d", val);
! 169: param->val = xstrdup(buf);
! 170:
! 171: return 0;
! 172: }
! 173:
! 174: int
! 175: istgt_iscsi_parse_params(ISCSI_PARAM **params, const uint8_t *data, int len)
! 176: {
! 177: const uint8_t *p, *q;
! 178: const uint8_t *last;
! 179: char *key = NULL;
! 180: char *val = NULL;
! 181: int rc;
! 182: int n;
! 183:
! 184: /* for each key/val temporary store */
! 185: key = xmalloc(ISCSI_TEXT_MAX_KEY_LEN + 1);
! 186: val = xmalloc(ISCSI_TEXT_MAX_VAL_LEN + 1);
! 187:
! 188: /* data = "KEY=VAL<NUL>KEY=VAL<NUL>..." */
! 189: p = data;
! 190: last = data + len;
! 191: while (p < last && *p != '\0') {
! 192: q = p;
! 193: /* q = "KEY=VAL<NUL>" */
! 194: while (q < last && *q != '\0') {
! 195: if (*q == '=') {
! 196: break;
! 197: }
! 198: q++;
! 199: }
! 200: if (q >= last || *q == '\0') {
! 201: ISTGT_ERRLOG("'=' not found\n");
! 202: error_return:
! 203: xfree(key);
! 204: xfree(val);
! 205: return -1;
! 206: }
! 207: n = q - p;
! 208: if (n > ISCSI_TEXT_MAX_KEY_LEN) {
! 209: ISTGT_ERRLOG("Overflow Key %d\n", n);
! 210: goto error_return;
! 211: }
! 212: memcpy(key, p, n);
! 213: key[n] = '\0';
! 214:
! 215: p = q + 1;
! 216: q = p;
! 217: /* q = "VAL<NUL>" */
! 218: while (q < last && *q != '\0') {
! 219: q++;
! 220: }
! 221: n = q - p;
! 222: if (n > ISCSI_TEXT_MAX_VAL_LEN) {
! 223: ISTGT_ERRLOG("Overflow Val %d\n", n);
! 224: goto error_return;
! 225: }
! 226: memcpy(val, p, n);
! 227: val[n] = '\0';
! 228:
! 229: rc = istgt_iscsi_param_add(params, key, val, NULL, 0);
! 230: if (rc < 0) {
! 231: ISTGT_ERRLOG("iscsi_param_add() failed\n");
! 232: goto error_return;
! 233: }
! 234:
! 235: p = q + 1;
! 236: while (p < last && *p == '\0') {
! 237: p++;
! 238: }
! 239: }
! 240:
! 241: xfree(key);
! 242: xfree(val);
! 243: return 0;
! 244: }
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/cvsweb/back.gif){kind=icon}
Return to istgt_iscsi_param.c CVS log ![[TXT]](/icons/cvsweb/text.gif){kind=icon}
![[DIR]](/icons/cvsweb/dir.gif){kind=icon}
Up to [ELWIX - Embedded LightWeight unIX -] / embedaddon / istgt / src