GNU libmicrohttpd 1.0.0
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Header for string manipulating helpers. More...
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Macros | |
#define | MHD_str_equal_caseless_s_bin_n_(a, s, l) |
#define | MHD_str_has_s_token_caseless_(str, tkn) |
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) |
Header for string manipulating helpers.
Definition in file mhd_str.h.
#define MHD_str_equal_caseless_s_bin_n_ | ( | a, | |
s, | |||
l ) |
Check whether string is equal statically allocated another string, ignoring case of US-ASCII letters and checking not more than len bytes.
If strings have different sizes (lengths) then macro returns boolean false without checking the content.
Compares not more first than len bytes, including binary zero characters. Comparison stops at first unmatched byte.
a | the statically allocated string to compare |
s | the string to compare |
len | number of characters to compare |
#define MHD_str_has_s_token_caseless_ | ( | str, | |
tkn ) |
Check whether str has case-insensitive static tkn. 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.
str | the string to check |
tkn | the static string of token to find |
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
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 |
Definition at line 1676 of file mhd_str.c.
Referenced by calculate_nonce(), digest_auth_check_all_inner(), and 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.
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 |
Definition at line 1696 of file mhd_str.c.
References MHD_bin_to_hex().
Referenced by MHD_digest_auth_calc_userhash_hex().
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.
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) |
Definition at line 1710 of file mhd_str.c.
References mhd_assert, and toxdigitvalue.
Referenced by digest_auth_check_all_inner(), and get_rq_uname().
int MHD_str_equal_caseless_ | ( | const char * | str1, |
const char * | str2 ) |
Check two strings for equality, ignoring case of US-ASCII letters.
str1 | first string to compare |
str2 | second string to compare |
Check two string for equality, ignoring case of US-ASCII letters.
str1 | first string to compare |
str2 | second string to compare |
Definition at line 346 of file mhd_str.c.
References charsequalcaseless, and toasciilower.
Referenced by build_header_response(), check_response_header_token_ci(), keepalive_possible(), method_string_to_enum(), MHD_add_response_header(), MHD_lookup_header_token_ci(), MHD_queue_response(), MHD_request_lookup_value(), MHD_response_get_header(), need_100_continue(), need_100_continue(), parse_connection_headers(), and parse_request_headers().
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.
str1 | first string to compare |
str2 | second string to compare |
len | number of characters to compare |
Definition at line 749 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(), 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_().
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.
str1 | first string to compare |
str2 | second string to compare |
maxlen | maximum number of characters to compare |
Definition at line 378 of file mhd_str.c.
References charsequalcaseless, and toasciilower.
Referenced by add_user_headers(), MHD_create_post_processor(), MHD_post_process(), post_process_multipart(), process_multipart_headers(), and try_match_header().
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.
str | the string to check |
token | the token to find |
token_len | length of token, not including optional terminating null-character. |
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.
str | the string to check |
token | the token to find |
token_len | length of token, not including optional terminating null-character. |
Definition at line 412 of file mhd_str.c.
References charsequalcaseless, and toasciilower.
Referenced by check_response_header_token_ci(), MHD_check_response_header_token_ci(), MHD_lookup_header_token_ci(), and MHD_lookup_header_token_ci().
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.
[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 |
Definition at line 1984 of file mhd_str.c.
References MHD_str_pct_decode_lenient_n_(), NULL, and toxdigitvalue.
Referenced by MHD_http_unescape(), MHD_str_pct_decode_in_place_strict_(), and unescape_wrapper().
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.
[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 |
Definition at line 1928 of file mhd_str.c.
References MHD_str_pct_decode_in_place_lenient_(), and toxdigitvalue.
Referenced by unescape_wrapper().
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.
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 |
Definition at line 1829 of file mhd_str.c.
References NULL, and toxdigitvalue.
Referenced by MHD_str_pct_decode_in_place_lenient_(), and 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.
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 |
Definition at line 1746 of file mhd_str.c.
References MHD_str_pct_decode_lenient_n_(), and toxdigitvalue.
Referenced by get_rq_extended_uname_copy_z().
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.
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 |
< the "input" string / character
< the "output" string / character
< position of matched character in the token
< the first char of current token
Definition at line 857 of file mhd_str.c.
References charsequalcaseless, mhd_assert, NULL, and SSIZE_MAX.
Referenced by add_response_header_connection().
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.
[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. |
< 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 1033 of file mhd_str.c.
References mhd_assert, MHD_str_equal_caseless_bin_n_(), and NULL.
Referenced by add_response_header_connection(), and del_response_header_connection().
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.
str | string to convert | |
[out] | out_val | pointer to uint64_t to store result of conversion |
Definition at line 473 of file mhd_str.c.
References isasciidigit, and UINT64_MAX.
Referenced by parse_request_headers().
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.
str | string to convert | |
maxlen | maximum number of characters to process | |
[out] | out_val | pointer to uint64_t to store result of conversion |
Definition at line 515 of file mhd_str.c.
References isasciidigit, and UINT64_MAX.
Referenced by parse_connection_headers().
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.
str | string to convert | |
[out] | out_val | pointer to uint32_t to store result of conversion |
Definition at line 558 of file mhd_str.c.
References toxdigitvalue, and UINT32_MAX.
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.
str | string to convert | |
maxlen | maximum number of characters to process | |
[out] | out_val | pointer to uint32_t to store result of conversion |
Definition at line 605 of file mhd_str.c.
References toxdigitvalue, and UINT32_MAX.
Referenced by MHD_http_unescape().
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.
str | string to convert | |
[out] | out_val | pointer to uint64_t to store result of conversion |
Definition at line 646 of file mhd_str.c.
References toxdigitvalue, and UINT64_MAX.
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.
str | string to convert | |
maxlen | maximum number of characters to process | |
[out] | out_val | pointer to uint64_t to store result of conversion |
Definition at line 692 of file mhd_str.c.
References toxdigitvalue, and UINT64_MAX.
Referenced by digest_auth_check_all_inner(), get_nonce_timestamp(), get_rq_nc(), process_request_body(), and process_request_body().
size_t MHD_uint16_to_str | ( | uint16_t | val, |
char * | buf, | ||
size_t | buf_size ) |
Convert uint16_t value to decimal US-ASCII string.
val | the value to convert |
buf | the buffer to result to |
buf_size | size of the buffer |
< pointer to the current printed digit
Definition at line 1550 of file mhd_str.c.
References mhd_assert.
Referenced by build_header_response(), and get_date_str().
size_t MHD_uint32_to_strx | ( | uint32_t | val, |
char * | buf, | ||
size_t | buf_size ) |
Convert uint32_t value to hexdecimal US-ASCII string.
val | the value to convert |
buf | the buffer to result to |
buf_size | size of the buffer |
< position of the output character
zero-based, digit position in 'val'
Definition at line 1516 of file mhd_str.c.
Referenced by try_ready_chunked_body().
size_t MHD_uint64_to_str | ( | uint64_t | val, |
char * | buf, | ||
size_t | buf_size ) |
Convert uint64_t value to decimal US-ASCII string.
val | the value to convert |
buf | the buffer to result to |
buf_size | size of the buffer |
< pointer to the current printed digit
Definition at line 1591 of file mhd_str.c.
References mhd_assert.
Referenced by build_header_response().
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.
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 |
< the position of the current printed digit
Definition at line 1629 of file mhd_str.c.
References mhd_assert.
Referenced by get_date_str().