* Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2012, Intel Corporation.
+ * Copyright (c) 2012, 2014, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
#include <libcfs/libcfs.h>
-/* non-0 = don't match */
-int cfs_strncasecmp(const char *s1, const char *s2, size_t n)
+char *cfs_strrstr(const char *haystack, const char *needle)
{
- if (s1 == NULL || s2 == NULL)
- return 1;
+ char *ptr;
- if (n == 0)
- return 0;
+ if (unlikely(haystack == NULL || needle == NULL))
+ return NULL;
- while (n-- != 0 && tolower(*s1) == tolower(*s2)) {
- if (n == 0 || *s1 == '\0' || *s2 == '\0')
- break;
- s1++;
- s2++;
- }
+ if (strlen(needle) == 1)
+ return strrchr(haystack, needle[0]);
+
+ ptr = strstr(haystack, needle);
+ if (ptr != NULL) {
+ while (1) {
+ char *tmp;
+
+ tmp = strstr(&ptr[1], needle);
+ if (tmp == NULL)
+ return ptr;
+
+ ptr = tmp;
+ }
+ }
- return tolower(*(unsigned char *)s1) - tolower(*(unsigned char *)s2);
+ return NULL;
}
-EXPORT_SYMBOL(cfs_strncasecmp);
+EXPORT_SYMBOL(cfs_strrstr);
/* Convert a text string to a bitmask */
int cfs_str2mask(const char *str, const char *(*bit2str)(int bit),
debugstr = bit2str(i);
if (debugstr != NULL &&
strlen(debugstr) == len &&
- cfs_strncasecmp(str, debugstr, len) == 0) {
+ strncasecmp(str, debugstr, len) == 0) {
if (op == '-')
newmask &= ~(1 << i);
else
}
}
if (!found && len == 3 &&
- (cfs_strncasecmp(str, "ALL", len) == 0)) {
+ (strncasecmp(str, "ALL", len) == 0)) {
if (op == '-')
newmask = minmask;
else
}
EXPORT_SYMBOL(cfs_str2mask);
-/* Duplicate a string in a platform-independent way */
-char *cfs_strdup(const char *str, u_int32_t flags)
-{
- size_t lenz; /* length of str + zero byte */
- char *dup_str;
-
- lenz = strlen(str) + 1;
-
- dup_str = cfs_alloc(lenz, flags);
- if (dup_str == NULL)
- return NULL;
-
- memcpy(dup_str, str, lenz);
-
- return dup_str;
-}
-EXPORT_SYMBOL(cfs_strdup);
-
/**
* cfs_{v}snprintf() return the actual size that is printed rather than
* the size that would be printed in standard functions.
{
char *end;
- while (cfs_iswhite(*str))
+ while (isspace(*str))
str++;
end = str + strlen(str);
while (end > str) {
- if (!cfs_iswhite(end[-1]))
+ if (!isspace(end[-1]))
break;
end--;
}
/* skip leading white spaces */
while (next->ls_len) {
- if (!cfs_iswhite(*next->ls_str))
+ if (!isspace(*next->ls_str))
break;
next->ls_str++;
next->ls_len--;
/* skip ending whitespaces */
while (--end != res->ls_str) {
- if (!cfs_iswhite(*end))
+ if (!isspace(*end))
break;
}
{
char *endp;
- str = cfs_trimwhite(str);
- *num = strtoul(str, &endp, 0);
+ *num = simple_strtoul(str, &endp, 0);
if (endp == str)
return 0;
for (; endp < str + nob; endp++) {
- if (!cfs_iswhite(*endp))
+ if (!isspace(*endp))
return 0;
}
EXPORT_SYMBOL(cfs_range_expr_parse);
/**
+ * Print the range expression \a re into specified \a buffer.
+ * If \a bracketed is true, expression does not need additional
+ * brackets.
+ *
+ * \retval number of characters written
+ */
+static int
+cfs_range_expr_print(char *buffer, int count, struct cfs_range_expr *expr,
+ bool bracketed)
+{
+ int i;
+ char s[] = "[";
+ char e[] = "]";
+
+ if (bracketed)
+ s[0] = e[0] = '\0';
+
+ if (expr->re_lo == expr->re_hi)
+ i = cfs_snprintf(buffer, count, "%u", expr->re_lo);
+ else if (expr->re_stride == 1)
+ i = cfs_snprintf(buffer, count, "%s%u-%u%s",
+ s, expr->re_lo, expr->re_hi, e);
+ else
+ i = cfs_snprintf(buffer, count, "%s%u-%u/%u%s",
+ s, expr->re_lo, expr->re_hi,
+ expr->re_stride, e);
+ return i;
+}
+
+/**
+ * Print a list of range expressions (\a expr_list) into specified \a buffer.
+ * If the list contains several expressions, separate them with comma
+ * and surround the list with brackets.
+ *
+ * \retval number of characters written
+ */
+int
+cfs_expr_list_print(char *buffer, int count, struct cfs_expr_list *expr_list)
+{
+ struct cfs_range_expr *expr;
+ int i = 0, j = 0;
+ int numexprs = 0;
+
+ if (count <= 0)
+ return 0;
+
+ list_for_each_entry(expr, &expr_list->el_exprs, re_link)
+ numexprs++;
+
+ if (numexprs > 1)
+ i += cfs_snprintf(buffer + i, count - i, "[");
+
+ list_for_each_entry(expr, &expr_list->el_exprs, re_link) {
+ if (j++ != 0)
+ i += cfs_snprintf(buffer + i, count - i, ",");
+ i += cfs_range_expr_print(buffer + i, count - i, expr,
+ numexprs > 1);
+ }
+
+ if (numexprs > 1)
+ i += cfs_snprintf(buffer + i, count - i, "]");
+
+ return i;
+}
+EXPORT_SYMBOL(cfs_expr_list_print);
+
+/**
* Matches value (\a value) against ranges expression list \a expr_list.
*
* \retval 1 if \a value matches
{
struct cfs_range_expr *expr;
- cfs_list_for_each_entry(expr, &expr_list->el_exprs, re_link) {
+ list_for_each_entry(expr, &expr_list->el_exprs, re_link) {
if (value >= expr->re_lo && value <= expr->re_hi &&
((value - expr->re_lo) % expr->re_stride) == 0)
return 1;
int count = 0;
int i;
- cfs_list_for_each_entry(expr, &expr_list->el_exprs, re_link) {
+ list_for_each_entry(expr, &expr_list->el_exprs, re_link) {
for (i = expr->re_lo; i <= expr->re_hi; i++) {
if (((i - expr->re_lo) % expr->re_stride) == 0)
count++;
return -ENOMEM;
count = 0;
- cfs_list_for_each_entry(expr, &expr_list->el_exprs, re_link) {
+ list_for_each_entry(expr, &expr_list->el_exprs, re_link) {
for (i = expr->re_lo; i <= expr->re_hi; i++) {
if (((i - expr->re_lo) % expr->re_stride) == 0)
val[count++] = i;
void
cfs_expr_list_free(struct cfs_expr_list *expr_list)
{
- while (!cfs_list_empty(&expr_list->el_exprs)) {
+ while (!list_empty(&expr_list->el_exprs)) {
struct cfs_range_expr *expr;
- expr = cfs_list_entry(expr_list->el_exprs.next,
- struct cfs_range_expr, re_link),
- cfs_list_del(&expr->re_link);
+ expr = list_entry(expr_list->el_exprs.next,
+ struct cfs_range_expr, re_link);
+ list_del(&expr->re_link);
LIBCFS_FREE(expr, sizeof(*expr));
}
}
EXPORT_SYMBOL(cfs_expr_list_free);
-void
-cfs_expr_list_print(struct cfs_expr_list *expr_list)
-{
- struct cfs_range_expr *expr;
-
- cfs_list_for_each_entry(expr, &expr_list->el_exprs, re_link) {
- CDEBUG(D_WARNING, "%d-%d/%d\n",
- expr->re_lo, expr->re_hi, expr->re_stride);
- }
-}
-EXPORT_SYMBOL(cfs_expr_list_print);
-
/**
* Parses \<cfs_expr_list\> token of the syntax.
*
- * \retval 1 if \a str parses to \<number\> | \<expr_list\>
- * \retval 0 otherwise
+ * \retval 0 if \a str parses to \<number\> | \<expr_list\>
+ * \retval -errno otherwise
*/
int
cfs_expr_list_parse(char *str, int len, unsigned min, unsigned max,
src.ls_str = str;
src.ls_len = len;
- CFS_INIT_LIST_HEAD(&expr_list->el_exprs);
+ INIT_LIST_HEAD(&expr_list->el_exprs);
if (src.ls_str[0] == '[' &&
src.ls_str[src.ls_len - 1] == ']') {
if (rc != 0)
break;
- cfs_list_add_tail(&expr->re_link,
+ list_add_tail(&expr->re_link,
&expr_list->el_exprs);
}
} else {
rc = cfs_range_expr_parse(&src, min, max, 0, &expr);
if (rc == 0) {
- cfs_list_add_tail(&expr->re_link,
+ list_add_tail(&expr->re_link,
&expr_list->el_exprs);
}
}
* \retval none
*/
void
-cfs_expr_list_free_list(cfs_list_t *list)
+cfs_expr_list_free_list(struct list_head *list)
{
struct cfs_expr_list *el;
- while (!cfs_list_empty(list)) {
- el = cfs_list_entry(list->next,
+ while (!list_empty(list)) {
+ el = list_entry(list->next,
struct cfs_expr_list, el_link);
- cfs_list_del(&el->el_link);
+ list_del(&el->el_link);
cfs_expr_list_free(el);
}
}
EXPORT_SYMBOL(cfs_expr_list_free_list);
int
-cfs_ip_addr_parse(char *str, int len, cfs_list_t *list)
+cfs_ip_addr_parse(char *str, int len, struct list_head *list)
{
struct cfs_expr_list *el;
struct cfs_lstr src;
if (rc != 0)
goto out;
- cfs_list_add_tail(&el->el_link, list);
+ list_add_tail(&el->el_link, list);
i++;
}
* \retval 0 otherwise
*/
int
-cfs_ip_addr_match(__u32 addr, cfs_list_t *list)
+cfs_ip_addr_match(__u32 addr, struct list_head *list)
{
struct cfs_expr_list *el;
int i = 0;
- cfs_list_for_each_entry_reverse(el, list, el_link) {
+ list_for_each_entry_reverse(el, list, el_link) {
if (!cfs_expr_list_match(addr & 0xff, el))
return 0;
addr >>= 8;
return i == 4;
}
EXPORT_SYMBOL(cfs_ip_addr_match);
-
-void
-cfs_ip_addr_free(cfs_list_t *list)
-{
- cfs_expr_list_free_list(list);
-}
-EXPORT_SYMBOL(cfs_ip_addr_free);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff