#include <stdarg.h>
#include <linux/types.h>
+/**
+ * simple_strtoul - convert a string to an unsigned long
+ *
+ * @param cp The string to be converted
+ * @param endp Updated to point to the first character not converted
+ * @param base The number base to use (0 for the default)
+ * @return value decoded from string (0 if invalid)
+ *
+ * Converts a string to an unsigned long. If there are invalid characters at
+ * the end these are ignored. In the worst case, if all characters are invalid,
+ * 0 is returned
+ *
+ * A hex prefix is supported (e.g. 0x123) regardless of the value of @base.
+ * If found, the base is set to hex (16).
+ *
+ * If @base is 0:
+ * - an octal '0' prefix (e.g. 0777) sets the base to octal (8).
+ * - otherwise the base defaults to decimal (10).
+ */
ulong simple_strtoul(const char *cp, char **endp, unsigned int base);
/**
+ * hex_strtoul - convert a string in hex to an unsigned long
+ *
+ * @param cp The string to be converted
+ * @param endp Updated to point to the first character not converted
+ * @return value decoded from string (0 if invalid)
+ *
+ * Converts a hex string to an unsigned long. If there are invalid characters at
+ * the end these are ignored. In the worst case, if all characters are invalid,
+ * 0 is returned
+ */
+unsigned long hextoul(const char *cp, char **endp);
+
+/**
+ * dec_strtoul - convert a string in decimal to an unsigned long
+ *
+ * @param cp The string to be converted
+ * @param endp Updated to point to the first character not converted
+ * @return value decoded from string (0 if invalid)
+ *
+ * Converts a decimal string to an unsigned long. If there are invalid
+ * characters at the end these are ignored. In the worst case, if all characters
+ * are invalid, 0 is returned
+ */
+unsigned long dectoul(const char *cp, char **endp);
+
+/**
* strict_strtoul - convert a string to an unsigned long strictly
* @param cp The string to be converted
- * @param base The number base to use
+ * @param base The number base to use (0 for the default)
* @param res The converted result value
* @return 0 if conversion is successful and *res is set to the converted
* value, otherwise it returns -EINVAL and *res is set to 0.
*
* echo will append a newline to the tail.
*
- * simple_strtoul just ignores the successive invalid characters and
- * return the converted value of prefix part of the string.
+ * A hex prefix is supported (e.g. 0x123) regardless of the value of @base.
+ * If found, the base is set to hex (16).
+ *
+ * If @base is 0:
+ * - an octal '0' prefix (e.g. 0777) sets the base to octal (8).
+ * - otherwise the base defaults to decimal (10).
*
* Copied this function from Linux 2.6.38 commit ID:
* 521cb40b0c44418a4fd36dc633f575813d59a43d
unsigned long long simple_strtoull(const char *cp, char **endp,
unsigned int base);
long simple_strtol(const char *cp, char **endp, unsigned int base);
+long long simple_strtoll(const char *cp, char **endp, unsigned int base);
/**
* trailing_strtol() - extract a trailing integer from a string
* See the vsprintf() documentation for format string extensions over C99.
*/
int vsprintf(char *buf, const char *fmt, va_list args);
-char *simple_itoa(ulong i);
+
+/**
+ * simple_itoa() - convert an unsigned integer to a string
+ *
+ * This returns a static string containing the decimal representation of the
+ * given value. The returned value may be overwritten by other calls to other
+ * simple_... functions, so should be used immediately
+ *
+ * @val: Value to convert
+ * @return string containing the decimal representation of @val
+ */
+char *simple_itoa(ulong val);
+
+/**
+ * simple_xtoa() - convert an unsigned integer to a hex string
+ *
+ * This returns a static string containing the hexadecimal representation of the
+ * given value. The returned value may be overwritten by other calls to other
+ * simple_... functions, so should be used immediately
+ *
+ * @val: Value to convert
+ * @return string containing the hexecimal representation of @val
+ */
+char *simple_xtoa(ulong num);
/**
* Format a string and place it in a buffer