-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
+/*
* GPL HEADER START
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
/*
* Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
+ *
+ * Copyright (c) 2012, Whamcloud, Inc.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
#define __LIBCFS_STRING_H__
/* libcfs_string.c */
+/* string comparison ignoring case */
+int cfs_strncasecmp(const char *s1, const char *s2, size_t n);
/* Convert a text string to a bitmask */
int cfs_str2mask(const char *str, const char *(*bit2str)(int bit),
int *oldmask, int minmask, int allmask);
/* safe snprintf */
int cfs_snprintf(char *buf, size_t size, const char *fmt, ...);
+
+/* trim leading and trailing space characters */
+char *cfs_firststr(char *str, size_t size);
+
+/**
+ * Structure to represent NULL-less strings.
+ */
+struct cfs_lstr {
+ char *ls_str;
+ int ls_len;
+};
+
+/*
+ * Structure to represent \<range_expr\> token of the syntax.
+ */
+struct cfs_range_expr {
+ /*
+ * Link to cfs_expr_list::el_exprs.
+ */
+ cfs_list_t re_link;
+ __u32 re_lo;
+ __u32 re_hi;
+ __u32 re_stride;
+};
+
+struct cfs_expr_list {
+ cfs_list_t el_link;
+ cfs_list_t el_exprs;
+};
+
+static inline int
+cfs_iswhite(char c)
+{
+ switch (c) {
+ case ' ':
+ case '\t':
+ case '\n':
+ case '\r':
+ return 1;
+ default:
+ break;
+ }
+ return 0;
+}
+
+char *cfs_trimwhite(char *str);
+int cfs_gettok(struct cfs_lstr *next, char delim, struct cfs_lstr *res);
+int cfs_str2num_check(char *str, int nob, unsigned *num,
+ unsigned min, unsigned max);
+int cfs_range_expr_parse(struct cfs_lstr *src, unsigned min, unsigned max,
+ int single_tok, struct cfs_range_expr **expr);
+int cfs_expr_list_match(__u32 value, struct cfs_expr_list *expr_list);
+int cfs_expr_list_values(struct cfs_expr_list *expr_list,
+ int max, __u32 **values);
+static inline void
+cfs_expr_list_values_free(__u32 *values, int num)
+{
+ /* This array is allocated by LIBCFS_ALLOC(), so it shouldn't be freed
+ * by OBD_FREE() if it's called by module other than libcfs & LNet,
+ * otherwise we will see fake memory leak */
+ LIBCFS_FREE(values, num * sizeof(values[0]));
+}
+
+void cfs_expr_list_free(struct cfs_expr_list *expr_list);
+void cfs_expr_list_print(struct cfs_expr_list *expr_list);
+int cfs_expr_list_parse(char *str, int len, unsigned min, unsigned max,
+ struct cfs_expr_list **elpp);
+void cfs_expr_list_free_list(cfs_list_t *list);
+int cfs_ip_addr_parse(char *str, int len, cfs_list_t *list);
+int cfs_ip_addr_match(__u32 addr, cfs_list_t *list);
+void cfs_ip_addr_free(cfs_list_t *list);
+
+#ifdef __KERNEL__
+#define strtoul(str, endp, base) simple_strtoul(str, endp, base)
+#endif
+
#endif