reference/4.1.2/str_8h_source.html

 /*
  * str.h -- strings to be used in the CoAP library
  *
  * Copyright (C) 2010-2011 Olaf Bergmann <bergmann@tzi.org>
  *
  * This file is part of the CoAP library libcoap. Please see README for terms
  * of use.
  */

 #ifndef _COAP_STR_H_
 #define _COAP_STR_H_

 #include <string.h>

 typedef struct {
   size_t length;    /* length of string */
   unsigned char *s; /* string data */
 } str;

 #define COAP_SET_STR(st,l,v) { (st)->length = (l), (st)->s = (v); }

 str *coap_new_string(size_t size);

 void coap_delete_string(str *);

 #endif /* _COAP_STR_H_ */
coap_new_string
str * coap_new_string(size_t size)
Returns a new string object with at least size bytes storage allocated.
Definition: str.c:17

str::length
size_t length
Definition: str.h:16

coap_delete_string
void coap_delete_string(str *)
Deletes the given string and releases any memory allocated.
Definition: str.c:31

str
Definition: str.h:15

str::s
unsigned char * s
Definition: str.h:17