ipv4/addr.h

IPv6 address type and helper functions definitions.

IPV4_ADDR_MAX_STR_LEN

Maximum length of an IPv4 address as string. 

1
(sizeof("255.255.255.255"))
bool ipv4_addr_equal(ipv4_addr_t * a, ipv4_addr_t * b)

Checks if two IPv4 addresses are equal.

Parameters

a:An IPv4 address.
b:Another IPv4 address.

Return values

  • true, if a and b are equal
  • false, otherwise.
char * ipv4_addr_to_str(char * result, const ipv4_addr_t * addr, uint8_t result_len)

Converts an IPv4 address to its string representation.

Parameters

result:The resulting string representation of at least ipv4/addr.h::IPV4_ADDR_MAX_STR_LEN.
addr:An IPv4 address
result_len:Length of result

Return values

  • result, on success
  • NULL, if result_len was lesser than IPV4_ADDR_MAX_STR_LEN
  • NULL, if result or addr was NULL
ipv4_addr_t * ipv4_addr_from_str(ipv4_addr_t * result, const char * addr)

Converts an IPv4 address string representation to a byte-represented IPv4 address.

Parameters

result:The resulting byte representation
addr:An IPv4 address string representation

Return values

  • result, on success
  • NULL, if addr was malformed
  • NULL, if result or addr was NULL
union ipv4_addr_t

Data type to represent an IPv4 address.