-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
- * Copyright (C) 2004 Cluster File Systems, Inc.
- *
- * This file is part of Lustre, http://www.lustre.org.
- *
- * Lustre is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * Lustre is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Lustre; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
+/*
+ * snapfs/options.c
*/
-
#define DEBUG_SUBSYSTEM S_SM
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/errno.h>
-#include <linux/obd_class.h>
-#include <linux/obd_support.h>
-#include <linux/lustre_lib.h>
#include <linux/lustre_idl.h>
-#include <linux/lustre_smfs.h>
-#include "smfs_internal.h"
+#include "smfs_internal.h"
static struct list_head option_list;
-static char *options = NULL;
-static char *opt_left = NULL;
+char *options = NULL;
+char *opt_left = NULL;
int init_option(char *data)
{
- INIT_LIST_HEAD(&option_list);
- OBD_ALLOC(options, strlen(data) + 1);
- if (!options) {
- CERROR("Can not allocate memory \n");
- return -ENOMEM;
- }
- memcpy(options, data, strlen(data));
- opt_left = options;
- return 0;
+ INIT_LIST_HEAD(&option_list);
+ SM_ALLOC(options, strlen(data) + 1);
+ if (!options) {
+ CERROR("Can not allocate memory \n");
+ return -ENOMEM;
+ }
+ memcpy(options, data, strlen(data));
+ opt_left = options;
+ return 0;
}
-
/*cleanup options*/
void cleanup_option(void)
{
- struct option *option;
- while (!list_empty(&option_list)) {
- option = list_entry(option_list.next, struct option, list);
- list_del(&option->list);
- OBD_FREE(option->opt, strlen(option->opt) + 1);
- if (option->value)
- OBD_FREE(option->value, strlen(option->value) + 1);
- OBD_FREE(option, sizeof(struct option));
- }
- OBD_FREE(options, strlen(options) + 1);
+ struct option *option;
+ while (!list_empty(&option_list)) {
+ option = list_entry(option_list.next, struct option, list);
+ list_del(&option->list);
+ SM_FREE(option->opt, strlen(option->opt) + 1);
+ if (option->value)
+ SM_FREE(option->value, strlen(option->value) + 1);
+ SM_FREE(option, sizeof(struct option));
+ }
+ SM_FREE(options, strlen(options) + 1);
}
-
int get_opt(struct option **option, char **pos)
{
- char *name, *value, *left, *tmp;
- struct option *tmp_opt;
- int length = 0;
+ char *name, *value, *left, *tmp;
+ struct option *tmp_opt;
+ int length = 0;
- *pos = opt_left;
+ *pos = opt_left;
- if (!*opt_left)
- return -ENODATA;
- left = strchr(opt_left, ',');
- if (left == opt_left)
- return -EINVAL;
- if (!left)
- left = opt_left + strlen(opt_left);
+ if (! *opt_left)
+ return -ENODATA;
+ left = strchr(opt_left, ',');
+ if (left == opt_left)
+ return -EINVAL;
+ if (!left){
+ left = opt_left + strlen(opt_left);
+ }
- OBD_ALLOC(tmp_opt, sizeof(struct option));
- tmp_opt->opt = NULL;
- tmp_opt->value = NULL;
+ SM_ALLOC(tmp_opt, sizeof(struct option));
+ tmp_opt->opt = NULL;
+ tmp_opt->value = NULL;
- tmp = opt_left;
- while(tmp != left && *tmp != '=') {
- length++;
- tmp++;
- }
- OBD_ALLOC(name, length + 1);
- tmp_opt->opt = name;
- while (opt_left != tmp) *name++ = *opt_left++;
+ tmp = opt_left;
+ while(tmp != left && *tmp != '=') {
+ length++;
+ tmp++;
+ }
+ SM_ALLOC(name, length + 1);
+ tmp_opt->opt = name;
+ memset(name, 0, length + 1);
+ while (opt_left != tmp) *name++ = *opt_left++;
- if (*tmp == '=') {
- /*this option has value*/
- opt_left ++; /*after '='*/
- if (left == opt_left) {
- OBD_FREE(tmp_opt->opt, strlen(tmp_opt->opt) + 1);
- OBD_FREE(tmp_opt, sizeof(struct option));
- opt_left = *pos;
- return -EINVAL;
- }
- length = left - opt_left;
- OBD_ALLOC(value, length + 1);
- if (!value) {
- OBD_FREE(tmp_opt->opt, strlen(tmp_opt->opt) + 1);
- OBD_FREE(tmp_opt, sizeof(struct option));
- return -ENOMEM;
- }
- tmp_opt->value = value;
- while (opt_left != left) *value++ = *opt_left++;
- }
- list_add(&tmp_opt->list, &option_list);
- if (*opt_left == ',') opt_left ++; /*after ','*/
- *option = tmp_opt;
- return 0;
+ if (*tmp == '=') {
+ /*this option has value*/
+ opt_left ++; /*after '='*/
+ if (left == opt_left) {
+ SM_FREE(tmp_opt->opt, length);
+ SM_FREE(tmp_opt, sizeof(struct option));
+ opt_left = *pos;
+ return -EINVAL;
+ }
+ length = left - opt_left + 1;
+ SM_ALLOC(value, length);
+ tmp_opt->value = value;
+ memset(value, 0, length);
+ while (opt_left != left) *value++ = *opt_left++;
+ }
+ list_add(&tmp_opt->list, &option_list);
+ if (*opt_left == ',') opt_left ++; /*after ','*/
+ *option = tmp_opt;
+ return 0;
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff