327 lines
11 KiB
C
327 lines
11 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
|
|
/*
|
|
* (C) Copyright 2000-2009
|
|
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
|
|
*/
|
|
|
|
#ifndef __VSPRINTF_H
|
|
#define __VSPRINTF_H
|
|
|
|
#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 (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.
|
|
*
|
|
* strict_strtoul converts a string to an unsigned long only if the
|
|
* string is really an unsigned long string, any string containing
|
|
* any invalid char at the tail will be rejected and -EINVAL is returned,
|
|
* only a newline char at the tail is acceptible because people generally
|
|
* change a module parameter in the following way:
|
|
*
|
|
* echo 1024 > /sys/module/e1000/parameters/copybreak
|
|
*
|
|
* echo will append a newline to the tail.
|
|
*
|
|
* 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
|
|
*
|
|
*/
|
|
int strict_strtoul(const char *cp, unsigned int base, unsigned long *res);
|
|
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
|
|
*
|
|
* Given a string this finds a trailing number on the string and returns it.
|
|
* For example, "abc123" would return 123.
|
|
*
|
|
* @str: String to exxamine
|
|
* Return: training number if found, else -1
|
|
*/
|
|
long trailing_strtol(const char *str);
|
|
|
|
/**
|
|
* trailing_strtoln() - extract a trailing integer from a fixed-length string
|
|
*
|
|
* Given a fixed-length string this finds a trailing number on the string
|
|
* and returns it. For example, "abc123" would return 123. Only the
|
|
* characters between @str and @end - 1 are examined. If @end is NULL, it is
|
|
* set to str + strlen(str).
|
|
*
|
|
* @str: String to exxamine
|
|
* @end: Pointer to end of string to examine, or NULL to use the
|
|
* whole string
|
|
* Return: training number if found, else -1
|
|
*/
|
|
long trailing_strtoln(const char *str, const char *end);
|
|
|
|
/**
|
|
* panic() - Print a message and reset/hang
|
|
*
|
|
* Prints a message on the console(s) and then resets. If CONFIG_PANIC_HANG is
|
|
* defined, then it will hang instead of resetting.
|
|
*
|
|
* @param fmt: printf() format string for message, which should not include
|
|
* \n, followed by arguments
|
|
*/
|
|
void panic(const char *fmt, ...)
|
|
__attribute__ ((format (__printf__, 1, 2), noreturn));
|
|
|
|
/**
|
|
* panic_str() - Print a message and reset/hang
|
|
*
|
|
* Prints a message on the console(s) and then resets. If CONFIG_PANIC_HANG is
|
|
* defined, then it will hang instead of resetting.
|
|
*
|
|
* This function can be used instead of panic() when your board does not
|
|
* already use printf(), * to keep code size small.
|
|
*
|
|
* @param fmt: string to display, which should not include \n
|
|
*/
|
|
void panic_str(const char *str) __attribute__ ((noreturn));
|
|
|
|
/**
|
|
* Format a string and place it in a buffer
|
|
*
|
|
* @param buf The buffer to place the result into
|
|
* @param fmt The format string to use
|
|
* @param ... Arguments for the format string
|
|
*
|
|
* The function returns the number of characters written
|
|
* into @buf.
|
|
*
|
|
* See the vsprintf() documentation for format string extensions over C99.
|
|
*/
|
|
int sprintf(char *buf, const char *fmt, ...)
|
|
__attribute__ ((format (__printf__, 2, 3)));
|
|
|
|
/**
|
|
* Format a string and place it in a buffer (va_list version)
|
|
*
|
|
* @param buf The buffer to place the result into
|
|
* @param fmt The format string to use
|
|
* @param args Arguments for the format string
|
|
* Return: the number of characters which have been written into
|
|
* the @buf not including the trailing '\0'.
|
|
*
|
|
* If you're not already dealing with a va_list consider using scnprintf().
|
|
*
|
|
* See the vsprintf() documentation for format string extensions over C99.
|
|
*/
|
|
int vsprintf(char *buf, const char *fmt, va_list args);
|
|
|
|
/**
|
|
* 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
|
|
*
|
|
* @param buf The buffer to place the result into
|
|
* @param size The size of the buffer, including the trailing null space
|
|
* @param fmt The format string to use
|
|
* @param ... Arguments for the format string
|
|
* Return: the number of characters which would be
|
|
* generated for the given input, excluding the trailing null,
|
|
* as per ISO C99. If the return is greater than or equal to
|
|
* @size, the resulting string is truncated.
|
|
*
|
|
* See the vsprintf() documentation for format string extensions over C99.
|
|
*/
|
|
int snprintf(char *buf, size_t size, const char *fmt, ...)
|
|
__attribute__ ((format (__printf__, 3, 4)));
|
|
|
|
/**
|
|
* Format a string and place it in a buffer
|
|
*
|
|
* @param buf The buffer to place the result into
|
|
* @param size The size of the buffer, including the trailing null space
|
|
* @param fmt The format string to use
|
|
* @param ... Arguments for the format string
|
|
*
|
|
* The return value is the number of characters written into @buf not including
|
|
* the trailing '\0'. If @size is == 0 the function returns 0.
|
|
*
|
|
* See the vsprintf() documentation for format string extensions over C99.
|
|
*/
|
|
int scnprintf(char *buf, size_t size, const char *fmt, ...)
|
|
__attribute__ ((format (__printf__, 3, 4)));
|
|
|
|
/**
|
|
* Format a string and place it in a buffer (base function)
|
|
*
|
|
* @param buf The buffer to place the result into
|
|
* @param size The size of the buffer, including the trailing null space
|
|
* @param fmt The format string to use
|
|
* @param args Arguments for the format string
|
|
* Return: The number characters which would be generated for the given
|
|
* input, excluding the trailing '\0', as per ISO C99. Note that fewer
|
|
* characters may be written if this number of characters is >= size.
|
|
*
|
|
* This function follows C99 vsnprintf, but has some extensions:
|
|
* %pS output the name of a text symbol
|
|
* %pF output the name of a function pointer
|
|
* %pR output the address range in a struct resource
|
|
*
|
|
* The function returns the number of characters which would be
|
|
* generated for the given input, excluding the trailing '\0',
|
|
* as per ISO C99.
|
|
*
|
|
* Call this function if you are already dealing with a va_list.
|
|
* You probably want snprintf() instead.
|
|
*/
|
|
int vsnprintf(char *buf, size_t size, const char *fmt, va_list args);
|
|
|
|
/**
|
|
* Format a string and place it in a buffer (va_list version)
|
|
*
|
|
* @param buf The buffer to place the result into
|
|
* @param size The size of the buffer, including the trailing null space
|
|
* @param fmt The format string to use
|
|
* @param args Arguments for the format string
|
|
* Return: the number of characters which have been written into
|
|
* the @buf not including the trailing '\0'. If @size is == 0 the function
|
|
* returns 0.
|
|
*
|
|
* If you're not already dealing with a va_list consider using scnprintf().
|
|
*
|
|
* See the vsprintf() documentation for format string extensions over C99.
|
|
*/
|
|
int vscnprintf(char *buf, size_t size, const char *fmt, va_list args);
|
|
|
|
/**
|
|
* print_grouped_ull() - print a value with digits grouped by ','
|
|
*
|
|
* This prints a value with grouped digits, like 12,345,678 to make it easier
|
|
* to read.
|
|
*
|
|
* @val: Value to print
|
|
* @digits: Number of digiits to print
|
|
*/
|
|
void print_grouped_ull(unsigned long long int_val, int digits);
|
|
|
|
bool str2off(const char *p, loff_t *num);
|
|
bool str2long(const char *p, ulong *num);
|
|
|
|
/**
|
|
* strmhz() - Convert a value to a Hz string
|
|
*
|
|
* This creates a string indicating the number of MHz of a value. For example,
|
|
* 2700000 produces "2.7".
|
|
* @buf: Buffer to hold output string, which must be large enough
|
|
* @hz: Value to convert
|
|
*/
|
|
char *strmhz(char *buf, unsigned long hz);
|
|
|
|
/**
|
|
* str_to_upper() - Convert a string to upper case
|
|
*
|
|
* This simply uses toupper() on each character of the string.
|
|
*
|
|
* @in: String to convert (must be large enough to hold the output string)
|
|
* @out: Buffer to put converted string
|
|
* @len: Number of bytes available in @out (SIZE_MAX for all)
|
|
*/
|
|
void str_to_upper(const char *in, char *out, size_t len);
|
|
|
|
/**
|
|
* vsscanf - Unformat a buffer into a list of arguments
|
|
* @buf: input buffer
|
|
* @fmt: format of buffer
|
|
* @args: arguments
|
|
*/
|
|
int vsscanf(const char *inp, char const *fmt0, va_list ap);
|
|
|
|
/**
|
|
* sscanf - Unformat a buffer into a list of arguments
|
|
* @buf: input buffer
|
|
* @fmt: formatting of buffer
|
|
* @...: resulting arguments
|
|
*/
|
|
int sscanf(const char *buf, const char *fmt, ...);
|
|
|
|
#endif
|