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8 * as published by the Free Software Foundation.
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12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
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17 * version 2 along with this program; If not, see
18 * http://www.gnu.org/licenses/gpl-2.0.html
23 * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Use is subject to license terms.
26 * Copyright (c) 2012, 2017, Intel Corporation.
29 * This file is part of Lustre, http://www.lustre.org/
30 * Lustre is a trademark of Sun Microsystems, Inc.
32 * libcfs/include/libcfs/libcfs_string.h
34 * Generic string manipulation functions.
36 * Author: Nathan Rutman <nathan.rutman@sun.com>
39 #ifndef __LIBCFS_UTIL_STRING_H__
40 #define __LIBCFS_UTIL_STRING_H__
45 #include <linux/types.h>
46 #include <libcfs/util/list.h>
49 int vscnprintf(char *buf, size_t bufsz, const char *format, va_list args)
56 ret = vsnprintf(buf, bufsz, format, args);
57 return (bufsz > ret) ? ret : bufsz - 1;
60 /* __printf from linux kernel */
62 #define __printf(a, b) __attribute__((__format__(printf, a, b)))
66 static inline int scnprintf(char *buf, size_t bufsz, const char *format, ...)
71 va_start(args, format);
72 ret = vscnprintf(buf, bufsz, format, args);
80 * Structure to represent NULL-less strings.
88 * Structure to represent \<range_expr\> token of the syntax.
90 struct cfs_range_expr {
92 * Link to cfs_expr_list::el_exprs.
94 struct list_head re_link;
100 struct cfs_expr_list {
101 struct list_head el_link;
102 struct list_head el_exprs;
105 int cfs_expr_list_values(struct cfs_expr_list *expr_list, int max, __u32 **valpp);
106 int cfs_gettok(struct cfs_lstr *next, char delim, struct cfs_lstr *res);
107 int cfs_str2num_check(char *str, int nob, unsigned *num,
108 unsigned min, unsigned max);
109 int cfs_expr_list_match(__u32 value, struct cfs_expr_list *expr_list);
110 int cfs_expr_list_print(char *buffer, int count,
111 struct cfs_expr_list *expr_list);
112 int cfs_expr_list_parse(char *str, int len, unsigned min, unsigned max,
113 struct cfs_expr_list **elpp);
114 void cfs_expr_list_free(struct cfs_expr_list *expr_list);
115 void cfs_expr_list_free_list(struct list_head *list);
116 int cfs_ip_addr_parse(char *str, int len, struct list_head *list);
117 int cfs_ip_addr_range_gen(__u32 *ip_list, int count,
118 struct list_head *ip_addr_expr);
119 int cfs_ip_addr_match(__u32 addr, struct list_head *list);
120 int cfs_abs_path(const char *request_path, char **resolved_path);