# resolv.h - [Overview](#section382619964165628) - [Summary](#section161328308165628) - [Functions](#func-members) ## **Overview** **Related Modules:** [NET](NET.md) **Description:** Provides functions and data structures related to network operations. For example, you can use the functions to send and receive network data, manage network addresses, and convert bytes. **Since:** 1.0 **Version:** 1.0 ## **Summary** ## Functions

Function	Description
dn_comp (const char src, unsigned char dst, int space, unsigned char dnptrs, unsigned char lastdnptr)	int Compresses a network domain name.
dn_expand (const unsigned char base, const unsigned char end, const unsigned char src, char dest, int space)	int Expands a compressed domain name to a full domain name.

Function

Description

dn_comp (const char *src, unsigned char *dst, int space, unsigned char **dnptrs, unsigned char **lastdnptr)

int

Compresses a network domain name.

dn_expand (const unsigned char *base, const unsigned char *end, const unsigned char *src, char *dest, int space)

int

Expands a compressed domain name to a full domain name.