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11 * WITHOUT ANY WARRANTY; without even the implied warranty of
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.sun.com/software/products/lustre/docs/GPLv2.pdf
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21 * CA 95054 USA or visit www.sun.com if you need additional information or
27 * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
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33 * This file is part of Lustre, http://www.lustre.org/
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36 * libcfs/include/libcfs/libcfs_string.h
38 * Generic string manipulation functions.
40 * Author: Nathan Rutman <nathan.rutman@sun.com>
43 #ifndef __LIBCFS_STRING_H__
44 #define __LIBCFS_STRING_H__
47 char *cfs_strrstr(const char *haystack, const char *needle);
48 /* Convert a text string to a bitmask */
49 int cfs_str2mask(const char *str, const char *(*bit2str)(int bit),
50 int *oldmask, int minmask, int allmask);
52 /* Allocate space for and copy an existing string.
53 * Must free with kfree().
55 char *cfs_strdup(const char *str, u_int32_t flags);
58 int cfs_vsnprintf(char *buf, size_t size, const char *fmt, va_list args);
61 int cfs_snprintf(char *buf, size_t size, const char *fmt, ...);
63 /* trim leading and trailing space characters */
64 char *cfs_firststr(char *str, size_t size);
67 * Structure to represent NULL-less strings.
75 * Structure to represent \<range_expr\> token of the syntax.
77 struct cfs_range_expr {
79 * Link to cfs_expr_list::el_exprs.
81 struct list_head re_link;
87 struct cfs_expr_list {
88 struct list_head el_link;
89 struct list_head el_exprs;
107 char *cfs_trimwhite(char *str);
108 int cfs_gettok(struct cfs_lstr *next, char delim, struct cfs_lstr *res);
109 int cfs_str2num_check(char *str, int nob, unsigned *num,
110 unsigned min, unsigned max);
111 int cfs_range_expr_parse(struct cfs_lstr *src, unsigned min, unsigned max,
112 int single_tok, struct cfs_range_expr **expr);
113 int cfs_expr_list_match(__u32 value, struct cfs_expr_list *expr_list);
114 int cfs_expr_list_print(char *buffer, int count,
115 struct cfs_expr_list *expr_list);
116 int cfs_expr_list_values(struct cfs_expr_list *expr_list,
117 int max, __u32 **values);
119 cfs_expr_list_values_free(__u32 *values, int num)
121 /* This array is allocated by LIBCFS_ALLOC(), so it shouldn't be freed
122 * by OBD_FREE() if it's called by module other than libcfs & LNet,
123 * otherwise we will see fake memory leak */
124 LIBCFS_FREE(values, num * sizeof(values[0]));
127 void cfs_expr_list_free(struct cfs_expr_list *expr_list);
128 int cfs_expr_list_parse(char *str, int len, unsigned min, unsigned max,
129 struct cfs_expr_list **elpp);
130 void cfs_expr_list_free_list(struct list_head *list);
131 int cfs_ip_addr_parse(char *str, int len, struct list_head *list);
132 int cfs_ip_addr_match(__u32 addr, struct list_head *list);
133 void cfs_ip_addr_free(struct list_head *list);
136 #define strtoul(str, endp, base) simple_strtoul(str, endp, base)