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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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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 /* string comparison ignoring case */
49 int cfs_strncasecmp(const char *s1, const char *s2, size_t n);
50 /* Convert a text string to a bitmask */
51 int cfs_str2mask(const char *str, const char *(*bit2str)(int bit),
52 int *oldmask, int minmask, int allmask);
54 /* Allocate space for and copy an existing string.
55 * Must free with kfree().
57 char *cfs_strdup(const char *str, u_int32_t flags);
60 int cfs_vsnprintf(char *buf, size_t size, const char *fmt, va_list args);
63 int cfs_snprintf(char *buf, size_t size, const char *fmt, ...);
65 /* trim leading and trailing space characters */
66 char *cfs_firststr(char *str, size_t size);
69 * Structure to represent NULL-less strings.
77 * Structure to represent \<range_expr\> token of the syntax.
79 struct cfs_range_expr {
81 * Link to cfs_expr_list::el_exprs.
83 struct list_head re_link;
89 struct cfs_expr_list {
90 struct list_head el_link;
91 struct list_head el_exprs;
109 char *cfs_trimwhite(char *str);
110 int cfs_gettok(struct cfs_lstr *next, char delim, struct cfs_lstr *res);
111 int cfs_str2num_check(char *str, int nob, unsigned *num,
112 unsigned min, unsigned max);
113 int cfs_range_expr_parse(struct cfs_lstr *src, unsigned min, unsigned max,
114 int single_tok, struct cfs_range_expr **expr);
115 int cfs_expr_list_match(__u32 value, struct cfs_expr_list *expr_list);
116 int cfs_expr_list_print(char *buffer, int count,
117 struct cfs_expr_list *expr_list);
118 int cfs_expr_list_values(struct cfs_expr_list *expr_list,
119 int max, __u32 **values);
121 cfs_expr_list_values_free(__u32 *values, int num)
123 /* This array is allocated by LIBCFS_ALLOC(), so it shouldn't be freed
124 * by OBD_FREE() if it's called by module other than libcfs & LNet,
125 * otherwise we will see fake memory leak */
126 LIBCFS_FREE(values, num * sizeof(values[0]));
129 void cfs_expr_list_free(struct cfs_expr_list *expr_list);
130 int cfs_expr_list_parse(char *str, int len, unsigned min, unsigned max,
131 struct cfs_expr_list **elpp);
132 void cfs_expr_list_free_list(struct list_head *list);
133 int cfs_ip_addr_parse(char *str, int len, struct list_head *list);
134 int cfs_ip_addr_match(__u32 addr, struct list_head *list);
135 void cfs_ip_addr_free(struct list_head *list);
138 #define strtoul(str, endp, base) simple_strtoul(str, endp, base)