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Data Structures | |
struct | ldns_schwartzian_compare_struct |
Structure to do a Schwartzian-like transformation, for instance when sorting. More... | |
struct | ldns_struct_lookup_table |
A general purpose lookup table. More... | |
Macros | |
#define | dprintf(X, Y) fprintf(stderr, (X), (Y)) |
#define | LDNS_VERSION "1.8.4" |
#define | LDNS_REVISION ((1<<16)|(8<<8)|(4)) |
#define | INLINE static inline |
splint static inline workaround | |
#define | LDNS_MALLOC(type) LDNS_XMALLOC(type, 1) |
Memory management macros. | |
#define | LDNS_XMALLOC(type, count) ((type *) malloc((count) * sizeof(type))) |
#define | LDNS_CALLOC(type, count) ((type *) calloc((count), sizeof(type))) |
#define | LDNS_REALLOC(ptr, type) LDNS_XREALLOC((ptr), type, 1) |
#define | LDNS_XREALLOC(ptr, type, count) ((type *) realloc((ptr), (count) * sizeof(type))) |
#define | LDNS_FREE(ptr) do { free((ptr)); (ptr) = NULL; } while (0) |
#define | LDNS_DEP printf("DEPRECATED FUNCTION!\n"); |
#define | ldns_serial_arithmitics_gmtime_r ldns_serial_arithmetics_gmtime_r |
Typedefs | |
typedef struct ldns_struct_lookup_table | ldns_lookup_table |
Functions | |
ldns_lookup_table * | ldns_lookup_by_name (ldns_lookup_table table[], const char *name) |
Looks up the table entry by name, returns NULL if not found. | |
ldns_lookup_table * | ldns_lookup_by_id (ldns_lookup_table table[], int id) |
Looks up the table entry by id, returns NULL if not found. | |
int | ldns_get_bit (uint8_t bits[], size_t index) |
Returns the value of the specified bit The bits are counted from left to right, so bit #0 is the left most bit. | |
int | ldns_get_bit_r (uint8_t bits[], size_t index) |
Returns the value of the specified bit The bits are counted from right to left, so bit #0 is the right most bit. | |
void | ldns_set_bit (uint8_t *byte, int bit_nr, signed char value) |
sets the specified bit in the specified byte to 1 if value is true, 0 if false The bits are counted from right to left, so bit #0 is the right most bit. | |
int | ldns_hexdigit_to_int (char ch) |
Returns the int value of the given (hex) digit. | |
char | ldns_int_to_hexdigit (int ch) |
Returns the char (hex) representation of the given int. | |
int | ldns_hexstring_to_data (uint8_t *data, const char *str) |
Converts a hex string to binary data. | |
const char * | ldns_version (void) |
Show the internal library version. | |
time_t | ldns_mktime_from_utc (const struct tm *tm) |
Convert TM to seconds since epoch (midnight, January 1st, 1970). | |
time_t | mktime_from_utc (const struct tm *tm) |
struct tm * | ldns_serial_arithmetics_gmtime_r (int32_t time, time_t now, struct tm *result) |
The function interprets time as the number of seconds since epoch with respect to now using serial arithmetics (rfc1982). | |
int | ldns_init_random (FILE *fd, unsigned int size) |
Seed the random function. | |
uint16_t | ldns_get_random (void) |
Get random number. | |
char * | ldns_bubblebabble (uint8_t *data, size_t len) |
Encode data as BubbleBabble. | |
int | ldns_b32_ntop (const uint8_t *src_data, size_t src_data_length, char *target_text_buffer, size_t target_text_buffer_size) |
int | ldns_b32_ntop_extended_hex (const uint8_t *src_data, size_t src_data_length, char *target_text_buffer, size_t target_text_buffer_size) |
int | b32_ntop (const uint8_t *src_data, size_t src_data_length, char *target_text_buffer, size_t target_text_buffer_size) |
int | b32_ntop_extended_hex (const uint8_t *src_data, size_t src_data_length, char *target_text_buffer, size_t target_text_buffer_size) |
int | ldns_b32_pton (const char *src_text, size_t src_text_length, uint8_t *target_data_buffer, size_t target_data_buffer_size) |
int | ldns_b32_pton_extended_hex (const char *src_text, size_t src_text_length, uint8_t *target_data_buffer, size_t target_data_buffer_size) |
int | b32_pton (const char *src_text, size_t src_text_length, uint8_t *target_data_buffer, size_t target_data_buffer_size) |
int | b32_pton_extended_hex (const char *src_text, size_t src_text_length, uint8_t *target_data_buffer, size_t target_data_buffer_size) |
#define LDNS_MALLOC | ( | type | ) | LDNS_XMALLOC(type, 1) |
#define LDNS_XMALLOC | ( | type, | |
count | |||
) | ((type *) malloc((count) * sizeof(type))) |
#define LDNS_CALLOC | ( | type, | |
count | |||
) | ((type *) calloc((count), sizeof(type))) |
#define LDNS_REALLOC | ( | ptr, | |
type | |||
) | LDNS_XREALLOC((ptr), type, 1) |
#define LDNS_XREALLOC | ( | ptr, | |
type, | |||
count | |||
) | ((type *) realloc((ptr), (count) * sizeof(type))) |
#define LDNS_FREE | ( | ptr | ) | do { free((ptr)); (ptr) = NULL; } while (0) |
#define ldns_serial_arithmitics_gmtime_r ldns_serial_arithmetics_gmtime_r |
typedef struct ldns_struct_lookup_table ldns_lookup_table |
ldns_lookup_table * ldns_lookup_by_name | ( | ldns_lookup_table | table[], |
const char * | name | ||
) |
Looks up the table entry by name, returns NULL if not found.
[in] | table | the lookup table to search in |
[in] | name | what to search for |
ldns_lookup_table * ldns_lookup_by_id | ( | ldns_lookup_table | table[], |
int | id | ||
) |
Looks up the table entry by id, returns NULL if not found.
[in] | table | the lookup table to search in |
[in] | id | what to search for |
int ldns_get_bit | ( | uint8_t | bits[], |
size_t | index | ||
) |
int ldns_get_bit_r | ( | uint8_t | bits[], |
size_t | index | ||
) |
void ldns_set_bit | ( | uint8_t * | byte, |
int | bit_nr, | ||
signed char | value | ||
) |
sets the specified bit in the specified byte to 1 if value is true, 0 if false The bits are counted from right to left, so bit #0 is the right most bit.
[in] | byte | the bit to set the bit in |
[in] | bit_nr | the bit to set (0 <= n <= 7) |
[in] | value | whether to set the bit to 1 or 0 |
int ldns_hexdigit_to_int | ( | char | ch | ) |
char ldns_int_to_hexdigit | ( | int | ch | ) |
int ldns_hexstring_to_data | ( | uint8_t * | data, |
const char * | str | ||
) |
Converts a hex string to binary data.
[out] | data | The binary result is placed here. At least strlen(str)/2 bytes should be allocated |
[in] | str | The hex string to convert. This string should not contain spaces |
Definition at line 138 of file util.c.
References ldns_hexdigit_to_int().
const char * ldns_version | ( | void | ) |
Show the internal library version.
Definition at line 160 of file util.c.
References LDNS_VERSION.
time_t ldns_mktime_from_utc | ( | const struct tm * | tm | ) |
time_t mktime_from_utc | ( | const struct tm * | tm | ) |
Definition at line 219 of file util.c.
References ldns_mktime_from_utc().
struct tm * ldns_serial_arithmetics_gmtime_r | ( | int32_t | time, |
time_t | now, | ||
struct tm * | result | ||
) |
The function interprets time as the number of seconds since epoch with respect to now using serial arithmetics (rfc1982).
That number of seconds is then converted to broken-out time information. This is especially useful when converting the inception and expiration fields of RRSIG records.
[in] | time | number of seconds since epoch (midnight, January 1st, 1970) to be interpreted as a serial arithmetics number relative to now. |
[in] | now | number of seconds since epoch (midnight, January 1st, 1970) to which the time value is compared to determine the final value. |
[out] | result | the struct with the broken-out time information |
int ldns_init_random | ( | FILE * | fd, |
unsigned int | size | ||
) |
Seed the random function.
If the file descriptor is specified, the random generator is seeded with data from that file. If not, /dev/urandom is used.
applications should call this if they need entropy data within ldns If openSSL is available, it is automatically seeded from /dev/urandom or /dev/random.
If you need more entropy, or have no openssl available, this function MUST be called at the start of the program
If openssl is available, this function just adds more entropy
[in] | fd | a file providing entropy data for the seed |
[in] | size | the number of bytes to use as entropy data. If this is 0, only the minimal amount is taken (usually 4 bytes) |
Seed the random function.
If you need more entropy, or have no openssl available, this function MUST be called at the start of the program
If openssl is available, this function just adds more entropy
Definition at line 339 of file util.c.
References LDNS_FREE, and LDNS_XMALLOC.
uint16_t ldns_get_random | ( | void | ) |
char * ldns_bubblebabble | ( | uint8_t * | data, |
size_t | len | ||
) |
Encode data as BubbleBabble.
[in] | data | a pointer to data to be encoded |
[in] | len | size the number of bytes of data |
Definition at line 430 of file util.c.
References LDNS_XMALLOC.
int ldns_b32_ntop | ( | const uint8_t * | src_data, |
size_t | src_data_length, | ||
char * | target_text_buffer, | ||
size_t | target_text_buffer_size | ||
) |
int ldns_b32_ntop_extended_hex | ( | const uint8_t * | src_data, |
size_t | src_data_length, | ||
char * | target_text_buffer, | ||
size_t | target_text_buffer_size | ||
) |
int b32_ntop | ( | const uint8_t * | src_data, |
size_t | src_data_length, | ||
char * | target_text_buffer, | ||
size_t | target_text_buffer_size | ||
) |
int b32_ntop_extended_hex | ( | const uint8_t * | src_data, |
size_t | src_data_length, | ||
char * | target_text_buffer, | ||
size_t | target_text_buffer_size | ||
) |
int ldns_b32_pton | ( | const char * | src_text, |
size_t | src_text_length, | ||
uint8_t * | target_data_buffer, | ||
size_t | target_data_buffer_size | ||
) |
int ldns_b32_pton_extended_hex | ( | const char * | src_text, |
size_t | src_text_length, | ||
uint8_t * | target_data_buffer, | ||
size_t | target_data_buffer_size | ||
) |
int b32_pton | ( | const char * | src_text, |
size_t | src_text_length, | ||
uint8_t * | target_data_buffer, | ||
size_t | target_data_buffer_size | ||
) |