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Rtos API example

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lwip_def.c File Reference
Functions

lwip_def.c File Reference

Common functions used throughout the stack. More...

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Functions

u16_t lwip_htons (u16_t n)
 Convert an u16_t from host- to network byte order.
u32_t lwip_htonl (u32_t n)
 Convert an u32_t from host- to network byte order.
char * lwip_strnstr (const char *buffer, const char *token, size_t n)
 lwIP default implementation for strnstr() non-standard function.
int lwip_stricmp (const char *str1, const char *str2)
 lwIP default implementation for stricmp() non-standard function.
int lwip_strnicmp (const char *str1, const char *str2, size_t len)
 lwIP default implementation for strnicmp() non-standard function.
void lwip_itoa (char *result, size_t bufsize, int number)
 lwIP default implementation for itoa() non-standard function.

Detailed Description

Common functions used throughout the stack.

These are reference implementations of the byte swapping functions. Again with the aim of being simple, correct and fully portable. Byte swapping is the second thing you would want to optimize. You will need to port it to your architecture and in your cc.h:

#define lwip_htons(x) your_htons #define lwip_htonl(x) your_htonl

Note lwip_ntohs() and lwip_ntohl() are merely references to the htonx counterparts.

If you #define them to htons() and htonl(), you should #define LWIP_DONT_PROVIDE_BYTEORDER_FUNCTIONS to prevent lwIP from defining htonx/ntohx compatibility macros.

Definition in file lwip_def.c.

Function Documentation

u32_t lwip_htonl ( u32_t  n )

Convert an u32_t from host- to network byte order.

Parameters:
nu32_t in host byte order
Returns:
n in network byte order

Definition at line 90 of file lwip_def.c.

u16_t lwip_htons ( u16_t  n )

Convert an u16_t from host- to network byte order.

Parameters:
nu16_t in host byte order
Returns:
n in network byte order

Definition at line 76 of file lwip_def.c.

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