Functions implementations for string manipulating. More...

#include "mhd_str.h"
#include <string.h>
#include "mhd_assert.h"
#include "mhd_check.h"
#include "mhd_limits.h"

Include dependency graph for mhd_str.c:

Go to the source code of this file.

Macros
#define	isasciilower(c)

#define	isasciiupper(c)

#define	isasciialpha(c)

#define	isasciidigit(c)

#define	isasciixdigit(c)

#define	isasciialnum(c)

#define	toasciilower(c)

#define	toasciiupper(c)

#define	todigitvalue(c)

#define	toxdigitvalue(c)

#define	charsequalcaseless(c1, c2)

Functions
int	MHD_str_equal_caseless_ (const char str1, const char str2)

int	MHD_str_equal_caseless_n_ (const char const str1, const char const str2, size_t maxlen)

bool	MHD_str_equal_caseless_bin_n_ (const char const str1, const char const str2, size_t len)

bool	MHD_str_has_token_caseless_ (const char str, const char const token, size_t token_len)

bool	MHD_str_remove_token_caseless_ (const char str, size_t str_len, const char const token, const size_t token_len, char buf, ssize_t buf_size)

bool	MHD_str_remove_tokens_caseless_ (char str, size_t str_len, const char *const tokens, const size_t tokens_len)

size_t	MHD_str_to_uint64_ (const char str, uint64_t out_val)

size_t	MHD_str_to_uint64_n_ (const char str, size_t maxlen, uint64_t out_val)

size_t	MHD_strx_to_uint32_ (const char str, uint32_t out_val)

size_t	MHD_strx_to_uint32_n_ (const char str, size_t maxlen, uint32_t out_val)

size_t	MHD_strx_to_uint64_ (const char str, uint64_t out_val)

size_t	MHD_strx_to_uint64_n_ (const char str, size_t maxlen, uint64_t out_val)

size_t	MHD_uint32_to_strx (uint32_t val, char *buf, size_t buf_size)

size_t	MHD_uint16_to_str (uint16_t val, char *buf, size_t buf_size)

size_t	MHD_uint64_to_str (uint64_t val, char *buf, size_t buf_size)

size_t	MHD_uint8_to_str_pad (uint8_t val, uint8_t min_digits, char *buf, size_t buf_size)

size_t	MHD_bin_to_hex (const void bin, size_t size, char hex)

size_t	MHD_bin_to_hex_z (const void bin, size_t size, char hex)

size_t	MHD_hex_to_bin (const char hex, size_t len, void bin)

size_t	MHD_str_pct_decode_strict_n_ (const char pct_encoded, size_t pct_encoded_len, char decoded, size_t buf_size)

size_t	MHD_str_pct_decode_lenient_n_ (const char pct_encoded, size_t pct_encoded_len, char decoded, size_t buf_size, bool *broken_encoding)

size_t	MHD_str_pct_decode_in_place_strict_ (char *str)

size_t	MHD_str_pct_decode_in_place_lenient_ (char str, bool broken_encoding)

Detailed Description

Functions implementations for string manipulating.

Author: Karlson2k (Evgeny Grin)

Definition in file mhd_str.c.

Macro Definition Documentation

◆ charsequalcaseless

#define charsequalcaseless	(		c1,
			c2 )

Value:

  ( ((c1) == (c2)) || \
           (isasciiupper (c1) ? \
             (((c1) - 'A' + 'a') == (c2)) : \
             (((c1) == ((c2) - 'A' + 'a')) && isasciiupper (c2))) )

Caseless compare two characters.

Parameters

c1	the first char to compare
c2	the second char to compare

Returns: boolean 'true' if chars are caseless equal, false otherwise

Definition at line 666 of file mhd_str.c.

Referenced by MHD_str_equal_caseless_(), MHD_str_equal_caseless_bin_n_(), MHD_str_equal_caseless_n_(), MHD_str_has_token_caseless_(), and MHD_str_remove_token_caseless_().

◆ isasciialnum

#define isasciialnum ( c )

Value:

(isasciialpha (c) || isasciidigit (c))

isasciidigit

#define isasciidigit(c)

Definition mhd_str.c:586

isasciialpha

#define isasciialpha(c)

Definition mhd_str.c:576

Check whether character is decimal digit or letter in US-ASCII

Parameters

c	character to check

Returns: boolean true if character is decimal digit or letter, boolean false otherwise

Definition at line 608 of file mhd_str.c.

◆ isasciialpha

#define isasciialpha ( c )

Value:

(isasciilower (c) || isasciiupper (c))

isasciilower

#define isasciilower(c)

Definition mhd_str.c:556

Checks whether character is letter in US-ASCII

Parameters

c	character to check

Returns: boolean true if character is letter, boolean false otherwise

Definition at line 576 of file mhd_str.c.

◆ isasciidigit

#define isasciidigit ( c )

Value:

(((char) (c)) >= '0' && ((char) (c)) <= '9')

Check whether character is decimal digit in US-ASCII

Parameters

c	character to check

Returns: boolean true if character is decimal digit, boolean false otherwise

Definition at line 586 of file mhd_str.c.

Referenced by MHD_str_to_uint64_(), and MHD_str_to_uint64_n_().

◆ isasciilower

#define isasciilower ( c )

Value:

(((char) (c)) >= 'a' && ((char) (c)) <= 'z')

Checks whether character is lower case letter in US-ASCII

Parameters

c	character to check

Returns: boolean true if character is lower case letter, boolean false otherwise

Definition at line 556 of file mhd_str.c.

◆ isasciiupper

#define isasciiupper ( c )

Value:

(((char) (c)) >= 'A' && ((char) (c)) <= 'Z')

Checks whether character is upper case letter in US-ASCII

Parameters

c	character to check

Returns: boolean true if character is upper case letter, boolean false otherwise

Definition at line 566 of file mhd_str.c.

◆ isasciixdigit

#define isasciixdigit ( c )

Value:

                          (isasciidigit ((c)) || \
                          (((char) (c)) >= 'A' && ((char) (c)) <= 'F') || \
                          (((char) (c)) >= 'a' && ((char) (c)) <= 'f') )

Check whether character is hexadecimal digit in US-ASCII

Parameters

c	character to check

Returns: boolean true if character is hexadecimal digit, boolean false otherwise

Definition at line 596 of file mhd_str.c.

◆ toasciilower

#define toasciilower ( c )

Value:

((isasciiupper (c)) ? (((char) (c)) - 'A' + 'a') : \

((char) (c)))

Convert US-ASCII character to lower case. If character is upper case letter in US-ASCII than it's converted to lower case analog. If character is NOT upper case letter than it's returned unmodified.

Parameters

c	character to convert

Returns: converted to lower case character

Definition at line 620 of file mhd_str.c.

◆ toasciiupper

#define toasciiupper ( c )

Value:

((isasciilower (c)) ? (((char) (c)) - 'a' + 'A') : \

((char) (c)))

Convert US-ASCII character to upper case. If character is lower case letter in US-ASCII than it's converted to upper case analog. If character is NOT lower case letter than it's returned unmodified.

Parameters

c	character to convert

Returns: converted to upper case character

Definition at line 633 of file mhd_str.c.

◆ todigitvalue

#define todigitvalue ( c )

Value:

(isasciidigit (c) ? (int) (((char) (c)) - '0') : \

(int) (-1))

Convert US-ASCII decimal digit to its value.

Parameters

c	character to convert

Returns: value of hexadecimal digit or -1 if @ c is not hexadecimal digit

Definition at line 643 of file mhd_str.c.

◆ toxdigitvalue

#define toxdigitvalue ( c )

Value:

                          (isasciidigit (c) ? (int) (((char) (c)) - '0') : \
                          ( (((char) (c)) >= 'A' && ((char) (c)) <= 'F') ? \
                            (int) (((unsigned char) (c)) - 'A' + 10) : \
                            ( (((char) (c)) >= 'a' && ((char) (c)) <= 'f') ? \
                              (int) (((unsigned char) (c)) - 'a' + 10) : \
                              (int) (-1) )))

Convert US-ASCII hexadecimal digit to its value.

Parameters

c	character to convert

Returns: value of hexadecimal digit or -1 if @ c is not hexadecimal digit

Definition at line 652 of file mhd_str.c.

Referenced by MHD_hex_to_bin(), MHD_str_pct_decode_in_place_lenient_(), MHD_str_pct_decode_in_place_strict_(), MHD_str_pct_decode_lenient_n_(), MHD_str_pct_decode_strict_n_(), MHD_strx_to_uint32_(), MHD_strx_to_uint32_n_(), MHD_strx_to_uint64_(), and MHD_strx_to_uint64_n_().

Function Documentation

◆ MHD_bin_to_hex()

size_t MHD_bin_to_hex	(	const void *	bin,
		size_t	size,
		char *	hex )

Convert size bytes from input binary data to lower case hexadecimal digits. Result is NOT zero-terminated

Parameters

	bin	the pointer to the binary data to convert
	size	the size in bytes of the binary data to convert
[out]	hex	the output buffer, should be at least 2 * size

Returns: The number of characters written to the output buffer.

Definition at line 1677 of file mhd_str.c.

Referenced by calculate_nonce(), digest_auth_check_all_inner(), LLVMFuzzerTestOneInput(), and MHD_bin_to_hex_z().

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◆ MHD_bin_to_hex_z()

size_t MHD_bin_to_hex_z	(	const void *	bin,
		size_t	size,
		char *	hex )

Convert size bytes from input binary data to lower case hexadecimal digits, zero-terminate the result.

Parameters

	bin	the pointer to the binary data to convert
	size	the size in bytes of the binary data to convert
[out]	hex	the output buffer, should be at least 2 * size + 1

Returns: The number of characters written to the output buffer, not including terminating zero.

Definition at line 1697 of file mhd_str.c.

References MHD_bin_to_hex().

Referenced by LLVMFuzzerTestOneInput(), and MHD_digest_auth_calc_userhash_hex().

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◆ MHD_hex_to_bin()

size_t MHD_hex_to_bin	(	const char *	hex,
		size_t	len,
		void *	bin )

Convert hexadecimal digits to binary data.

The input decoded byte-by-byte (each byte is two hexadecimal digits). If length is an odd number, extra leading zero is assumed.

Parameters

	hex	the input string with hexadecimal digits
	len	the length of the input string
[out]	bin	the output buffer, must be at least len/2 bytes long (or len/2 + 1 if len is not even number)

Returns: the number of bytes written to the output buffer, zero if found any character which is not hexadecimal digits

Definition at line 1711 of file mhd_str.c.

References mhd_assert, and toxdigitvalue.

Referenced by digest_auth_check_all_inner(), get_rq_uname(), and LLVMFuzzerTestOneInput().

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◆ MHD_str_equal_caseless_()

int MHD_str_equal_caseless_	(	const char *	str1,
		const char *	str2 )

Check two strings for equality, ignoring case of US-ASCII letters.

Parameters

str1	first string to compare
str2	second string to compare

Returns: non-zero if two strings are equal, zero otherwise.

Definition at line 684 of file mhd_str.c.

References charsequalcaseless.

Referenced by MHD_add_response_header(), MHD_queue_response(), and need_100_continue().

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◆ MHD_str_equal_caseless_bin_n_()

bool MHD_str_equal_caseless_bin_n_	(	const char *const	str1,
		const char *const	str2,
		size_t	len )

Check two string for equality, ignoring case of US-ASCII letters and checking not more than len bytes. Compares not more first than len bytes, including binary zero characters. Comparison stops at first unmatched byte.

Parameters

str1	first string to compare
str2	second string to compare
len	number of characters to compare

Returns: non-zero if len bytes are equal, zero otherwise.

Definition at line 750 of file mhd_str.c.

References charsequalcaseless.

Referenced by add_user_headers(), find_auth_rq_header_(), get_no_space_err_status_code(), get_rq_extended_uname_copy_z(), is_param_equal_caseless(), LLVMFuzzerTestOneInput(), MHD_check_response_header_token_ci(), MHD_del_response_header(), MHD_get_response_element_n_(), MHD_get_response_header(), MHD_lookup_connection_value_n(), MHD_lookup_header_token_ci(), and MHD_str_remove_tokens_caseless_().

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◆ MHD_str_equal_caseless_n_()

int MHD_str_equal_caseless_n_	(	const char *const	str1,
		const char *const	str2,
		size_t	maxlen )

Check two string for equality, ignoring case of US-ASCII letters and checking not more than maxlen characters. Compares up to first terminating null character, but not more than first maxlen characters.

Parameters

str1	first string to compare
str2	second string to compare
maxlen	maximum number of characters to compare

Returns: non-zero if two strings are equal, zero otherwise.

Definition at line 718 of file mhd_str.c.

References charsequalcaseless.

Referenced by add_user_headers(), LLVMFuzzerTestOneInput(), MHD_create_post_processor(), MHD_post_process(), post_process_multipart(), process_multipart_headers(), and try_match_header().

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◆ MHD_str_has_token_caseless_()

bool MHD_str_has_token_caseless_	(	const char *	str,
		const char *const	token,
		size_t	token_len )

Check whether str has case-insensitive token. Token could be surrounded by spaces and tabs and delimited by comma. Match succeed if substring between start, end (of string) or comma contains only case-insensitive token and optional spaces and tabs.

Warning: token must not contain null-characters except optional terminating null-character.

Parameters

str	the string to check
token	the token to find
token_len	length of token, not including optional terminating null-character.

Returns: non-zero if two strings are equal, zero otherwise.

Definition at line 783 of file mhd_str.c.

References charsequalcaseless.

Referenced by LLVMFuzzerTestOneInput(), MHD_check_response_header_token_ci(), and MHD_lookup_header_token_ci().

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◆ MHD_str_pct_decode_in_place_lenient_()

size_t MHD_str_pct_decode_in_place_lenient_	(	char *	str,
		bool *	broken_encoding )

Decode string in-place with percent-encoded characters as defined by RFC 3986 #section-2.1.

This function decode string by converting percent-encoded characters to their decoded versions and copying back all other characters without extra processing.

Any invalid percent-encoding sequences ('' symbol not followed by two valid hexadecimal digits) are copied to the output string without decoding.

Parameters

[in,out]	str	the string to be updated in-place, must be zero-terminated on input, the output is zero-terminated
[out]	broken_encoding	will be set to true if any '' symbol is not followed by two valid hexadecimal digits, optional, can be NULL

Returns: the number of character in decoded string

Definition at line 1994 of file mhd_str.c.

References MHD_str_pct_decode_lenient_n_(), NULL, and toxdigitvalue.

Referenced by LLVMFuzzerTestOneInput(), MHD_http_unescape(), MHD_str_pct_decode_in_place_strict_(), and unescape_wrapper().

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◆ MHD_str_pct_decode_in_place_strict_()

size_t MHD_str_pct_decode_in_place_strict_ ( char * str )

Decode string in-place with percent-encoded characters as defined by RFC 3986 #section-2.1.

This function decode string by converting percent-encoded characters to their decoded versions and copying back all other characters without extra processing.

Parameters

[in,out] str the string to be updated in-place, must be zero-terminated on input, the output is zero-terminated; the string is truncated to zero length if broken encoding is found

Returns: the number of character in decoded string

Definition at line 1938 of file mhd_str.c.

References MHD_str_pct_decode_in_place_lenient_(), and toxdigitvalue.

Referenced by LLVMFuzzerTestOneInput(), and unescape_wrapper().

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◆ MHD_str_pct_decode_lenient_n_()

size_t MHD_str_pct_decode_lenient_n_	(	const char *	pct_encoded,
		size_t	pct_encoded_len,
		char *	decoded,
		size_t	buf_size,
		bool *	broken_encoding )

Decode string with percent-encoded characters as defined by RFC 3986 #section-2.1.

This function decode string by converting percent-encoded characters to their decoded versions and copying all other characters without extra processing.

Any invalid percent-encoding sequences ('' symbol not followed by two valid hexadecimal digits) are copied to the output string without decoding.

Parameters

	pct_encoded	the input string to be decoded
	pct_encoded_len	the length of the pct_encoded
[out]	decoded	the output buffer, NOT zero-terminated, can point to the same buffer as pct_encoded
	buf_size	the size of the output buffer
[out]	broken_encoding	will be set to true if any '' symbol is not followed by two valid hexadecimal digits, optional, can be NULL

Returns: the number of characters written to the output buffer or zero if output buffer is too small to hold the result

Definition at line 1835 of file mhd_str.c.

References NULL, and toxdigitvalue.

Referenced by LLVMFuzzerTestOneInput(), MHD_str_pct_decode_in_place_lenient_(), and MHD_str_pct_decode_strict_n_().

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◆ MHD_str_pct_decode_strict_n_()

size_t MHD_str_pct_decode_strict_n_	(	const char *	pct_encoded,
		size_t	pct_encoded_len,
		char *	decoded,
		size_t	buf_size )

Decode string with percent-encoded characters as defined by RFC 3986 #section-2.1.

This function decode string by converting percent-encoded characters to their decoded versions and copying all other characters without extra processing.

Parameters

	pct_encoded	the input string to be decoded
	pct_encoded_len	the length of the pct_encoded
[out]	decoded	the output buffer, NOT zero-terminated, can point to the same buffer as pct_encoded
	buf_size	the size of the output buffer

Returns: the number of characters written to the output buffer or zero if any percent-encoded characters is broken ('' followed by less than two hexadecimal digits) or output buffer is too small to hold the result

Definition at line 1750 of file mhd_str.c.

References MHD_str_pct_decode_lenient_n_(), and toxdigitvalue.

Referenced by get_rq_extended_uname_copy_z(), and LLVMFuzzerTestOneInput().

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◆ MHD_str_remove_token_caseless_()

bool MHD_str_remove_token_caseless_	(	const char *	str,
		size_t	str_len,
		const char *const	token,
		const size_t	token_len,
		char *	buf,
		ssize_t *	buf_size )

Remove case-insensitive token from the str and put result to the output buf.

Tokens in str could be surrounded by spaces and tabs and delimited by comma. The token match succeed if substring between start, end (of string) or comma contains only case-insensitive token and optional spaces and tabs. The quoted strings and comments are not supported by this function.

The output string is normalised: empty tokens and repeated whitespaces are removed, no whitespaces before commas, exactly one space is used after each comma.

Parameters

	str	the string to process
	str_len	the length of the str, not including optional terminating null-character.
	token	the token to find
	token_len	the length of token, not including optional terminating null-character.
[out]	buf	the output buffer, not null-terminated.
[in,out]	buf_size	pointer to the size variable, at input it is the size of allocated buffer, at output it is the size of the resulting string (can be up to 50% larger than input) or negative value if there is not enough space for the result

Returns: 'true' if token has been removed, 'false' otherwise.

< the "input" string / character

< the "output" string / character

< position of matched character in the token

< the first char of current token

Definition at line 858 of file mhd_str.c.

References charsequalcaseless, mhd_assert, NULL, and SSIZE_MAX.

Referenced by add_response_header_connection(), and LLVMFuzzerTestOneInput().

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◆ MHD_str_remove_tokens_caseless_()

bool MHD_str_remove_tokens_caseless_	(	char *	str,
		size_t *	str_len,
		const char *const	tokens,
		const size_t	tokens_len )

Perform in-place case-insensitive removal of tokens from the str.

Token could be surrounded by spaces and tabs and delimited by comma. The token match succeed if substring between start, end (of the string), or comma contains only case-insensitive token and optional spaces and tabs. The quoted strings and comments are not supported by this function.

The input string must be normalised: empty tokens and repeated whitespaces are removed, no whitespaces before commas, exactly one space is used after each comma. The string is updated in-place.

Behavior is undefined is the input string in not normalised.

Parameters

[in,out]	str	the string to update
[in,out]	str_len	the length of the str, not including optional terminating null-character, not null-terminated
	tokens	the token to find
	tokens_len	the length of tokens, not including optional terminating null-character.

Returns: 'true' if any token has been removed, 'false' otherwise.

< a short alias for tokens

< position in tokens

< the current token

< the 'read' position in the str

< the 'write' position in the str

Definition at line 1034 of file mhd_str.c.

References mhd_assert, MHD_str_equal_caseless_bin_n_(), and NULL.

Referenced by add_response_header_connection(), del_response_header_connection(), and LLVMFuzzerTestOneInput().

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◆ MHD_str_to_uint64_()

size_t MHD_str_to_uint64_	(	const char *	str,
		uint64_t *	out_val )

Convert decimal US-ASCII digits in string to number in uint64_t. Conversion stopped at first non-digit character.

Parameters

	str	string to convert
[out]	out_val	pointer to uint64_t to store result of conversion

Returns: non-zero number of characters processed on succeed, zero if no digit is found, resulting value is larger then possible to store in uint64_t or out_val is NULL

Definition at line 1197 of file mhd_str.c.

References isasciidigit, and UINT64_MAX.

◆ MHD_str_to_uint64_n_()

size_t MHD_str_to_uint64_n_	(	const char *	str,
		size_t	maxlen,
		uint64_t *	out_val )

Convert not more then maxlen decimal US-ASCII digits in string to number in uint64_t. Conversion stopped at first non-digit character or after maxlen digits.

Parameters

	str	string to convert
	maxlen	maximum number of characters to process
[out]	out_val	pointer to uint64_t to store result of conversion

Returns: non-zero number of characters processed on succeed, zero if no digit is found, resulting value is larger then possible to store in uint64_t or out_val is NULL

Definition at line 1239 of file mhd_str.c.

References isasciidigit, and UINT64_MAX.

Referenced by LLVMFuzzerTestOneInput(), and parse_connection_headers().

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◆ MHD_strx_to_uint32_()

size_t MHD_strx_to_uint32_	(	const char *	str,
		uint32_t *	out_val )

Convert hexadecimal US-ASCII digits in string to number in uint32_t. Conversion stopped at first non-digit character.

Parameters

	str	string to convert
[out]	out_val	pointer to uint32_t to store result of conversion

Returns: non-zero number of characters processed on succeed, zero if no digit is found, resulting value is larger then possible to store in uint32_t or out_val is NULL

Definition at line 1282 of file mhd_str.c.

References toxdigitvalue, and UINT32_MAX.

◆ MHD_strx_to_uint32_n_()

size_t MHD_strx_to_uint32_n_	(	const char *	str,
		size_t	maxlen,
		uint32_t *	out_val )

Convert not more then maxlen hexadecimal US-ASCII digits in string to number in uint32_t. Conversion stopped at first non-digit character or after maxlen digits.

Parameters

	str	string to convert
	maxlen	maximum number of characters to process
[out]	out_val	pointer to uint32_t to store result of conversion

Returns: non-zero number of characters processed on succeed, zero if no digit is found, resulting value is larger then possible to store in uint32_t or out_val is NULL

Definition at line 1329 of file mhd_str.c.

References toxdigitvalue, and UINT32_MAX.

◆ MHD_strx_to_uint64_()

size_t MHD_strx_to_uint64_	(	const char *	str,
		uint64_t *	out_val )

Convert hexadecimal US-ASCII digits in string to number in uint64_t. Conversion stopped at first non-digit character.

Parameters

	str	string to convert
[out]	out_val	pointer to uint64_t to store result of conversion

Returns: non-zero number of characters processed on succeed, zero if no digit is found, resulting value is larger then possible to store in uint64_t or out_val is NULL

Definition at line 1370 of file mhd_str.c.

References toxdigitvalue, and UINT64_MAX.

◆ MHD_strx_to_uint64_n_()

size_t MHD_strx_to_uint64_n_	(	const char *	str,
		size_t	maxlen,
		uint64_t *	out_val )

Convert not more then maxlen hexadecimal US-ASCII digits in string to number in uint64_t. Conversion stopped at first non-digit character or after maxlen digits.

Parameters

	str	string to convert
	maxlen	maximum number of characters to process
[out]	out_val	pointer to uint64_t to store result of conversion

Returns: non-zero number of characters processed on succeed, zero if no digit is found, resulting value is larger then possible to store in uint64_t or out_val is NULL

Definition at line 1416 of file mhd_str.c.

References toxdigitvalue, and UINT64_MAX.

Referenced by digest_auth_check_all_inner(), get_nonce_timestamp(), get_rq_nc(), LLVMFuzzerTestOneInput(), and process_request_body().

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◆ MHD_uint16_to_str()

size_t MHD_uint16_to_str	(	uint16_t	val,
		char *	buf,
		size_t	buf_size )

Convert uint16_t value to decimal US-ASCII string.

Note: : result is NOT zero-terminated.

Parameters

val	the value to convert
buf	the buffer to result to
buf_size	size of the buffer

Returns: number of characters has been put to the buf, zero if buffer is too small (buffer may be modified).

< pointer to the current printed digit

Definition at line 1551 of file mhd_str.c.

References mhd_assert.

Referenced by build_header_response(), and get_date_str().

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◆ MHD_uint32_to_strx()

size_t MHD_uint32_to_strx	(	uint32_t	val,
		char *	buf,
		size_t	buf_size )

Convert uint32_t value to hexadecimal US-ASCII string.

Note: : result is NOT zero-terminated.

Parameters

val	the value to convert
buf	the buffer to result to
buf_size	size of the buffer

Returns: number of characters has been put to the buf, zero if buffer is too small (buffer may be modified).

< position of the output character

zero-based, digit position in 'val'

Definition at line 1517 of file mhd_str.c.

Referenced by try_ready_chunked_body().

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◆ MHD_uint64_to_str()

size_t MHD_uint64_to_str	(	uint64_t	val,
		char *	buf,
		size_t	buf_size )

Convert uint64_t value to decimal US-ASCII string.

Note: : result is NOT zero-terminated.

Parameters

val	the value to convert
buf	the buffer to result to
buf_size	size of the buffer

Returns: number of characters has been put to the buf, zero if buffer is too small (buffer may be modified).

< pointer to the current printed digit

Definition at line 1592 of file mhd_str.c.

References mhd_assert.

Referenced by build_header_response().

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◆ MHD_uint8_to_str_pad()

size_t MHD_uint8_to_str_pad	(	uint8_t	val,
		uint8_t	min_digits,
		char *	buf,
		size_t	buf_size )

Convert uint16_t value to decimal US-ASCII string padded with zeros on the left side.

Note: : result is NOT zero-terminated.

Parameters

val	the value to convert
min_digits	the minimal number of digits to print, output padded with zeros on the left side, 'zero' value is interpreted as 'one', valid values are 3, 2, 1, 0
buf	the buffer to result to
buf_size	size of the buffer

Returns: number of characters has been put to the buf, zero if buffer is too small (buffer may be modified).

< the position of the current printed digit

Definition at line 1630 of file mhd_str.c.

References mhd_assert.

Referenced by get_date_str().

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Macros

Functions

Detailed Description

Macro Definition Documentation

◆ charsequalcaseless

◆ isasciialnum

◆ isasciialpha

◆ isasciidigit

◆ isasciilower

◆ isasciiupper

◆ isasciixdigit

◆ toasciilower

◆ toasciiupper

◆ todigitvalue

◆ toxdigitvalue

Function Documentation

◆ MHD_bin_to_hex()

◆ MHD_bin_to_hex_z()

◆ MHD_hex_to_bin()

◆ MHD_str_equal_caseless_()

◆ MHD_str_equal_caseless_bin_n_()

◆ MHD_str_equal_caseless_n_()

◆ MHD_str_has_token_caseless_()

◆ MHD_str_pct_decode_in_place_lenient_()

◆ MHD_str_pct_decode_in_place_strict_()

◆ MHD_str_pct_decode_lenient_n_()

◆ MHD_str_pct_decode_strict_n_()

◆ MHD_str_remove_token_caseless_()

◆ MHD_str_remove_tokens_caseless_()

◆ MHD_str_to_uint64_()

◆ MHD_str_to_uint64_n_()

◆ MHD_strx_to_uint32_()

◆ MHD_strx_to_uint32_n_()

◆ MHD_strx_to_uint64_()

◆ MHD_strx_to_uint64_n_()

◆ MHD_uint16_to_str()

◆ MHD_uint32_to_strx()

◆ MHD_uint64_to_str()

◆ MHD_uint8_to_str_pad()