X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=libcfs%2Finclude%2Flibcfs%2Flibcfs_string.h;h=e4b0c7d9463d4c3b3ae7a04e3d7de0e0b3efde1f;hp=ab035786bdaa51181d003fe8d19b87caee58c7ce;hb=d800fc41a1abdaf7aaf6c0e3e7ddcdec489985a8;hpb=9eccc6cc308e931d9c6040714caffdaef62a56f9

diff --git a/libcfs/include/libcfs/libcfs_string.h b/libcfs/include/libcfs/libcfs_string.h
index ab03578..e4b0c7d9 100644
--- a/libcfs/include/libcfs/libcfs_string.h
+++ b/libcfs/include/libcfs/libcfs_string.h
@@ -1,6 +1,4 @@
-/* -*- 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.
@@ -28,6 +26,8 @@
 /*
  * 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/
@@ -44,6 +44,8 @@
 #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);
@@ -58,4 +60,80 @@ int cfs_vsnprintf(char *buf, size_t size, const char *fmt, va_list args);
 
 /* 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