Johny Mattsson 526d21dab4 Major cleanup - c_whatever is finally history. (#2838)
The PR removed the bulk of non-newlib headers from the NodeMCU source base.  
app/libc has now been cut down to the bare minimum overrides to shadow the 
corresponding functions in the SDK's libc. The old c_xyz.h headerfiles have been 
nuked in favour of the standard <xyz.h> headers, with a few exceptions over in 
sdk-overrides. Again, shipping a libc.a without headers is a terrible thing to do. We're 
still living on a prayer that libc was configured the same was as a default-configured
xtensa gcc toolchain assumes it is. That part I cannot do anything about, unfortunately, 
but it's no worse than it has been before.

This enables our source files to compile successfully using the standard header files, 
and use the typical malloc()/calloc()/realloc()/free(), the strwhatever()s and 
memwhatever()s. These end up, through macro and linker magic, mapped to the 
appropriate SDK or ROM functions.
2019-07-22 00:58:21 +03:00

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C

/* 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); }
/**
* Returns a new string object with at least size bytes storage
* allocated. The string must be released using coap_delete_string();
*/
str *coap_new_string(size_t size);
/** Deletes the given string and releases any memory allocated. */
void coap_delete_string(str *);
#endif /* _COAP_STR_H_ */