RTOS/TM4C1294NCPDT: Server address to connect when NDK TCP client is configured(about inet_addr)

Hokyun Yu

Intellectual 530 points

Part Number: TM4C1294NCPDT

Tool/software: TI-RTOS

Hi,

I am configuring the client with reference to the TCP Echo example.

The following is the code:

struct sockaddr_in serverAddr;

memset(&serverAddr, 0, sizeof(serverAddr));

serverAddr.sin_family = AF_INET;
serverAddr.sin_addr.s_addr = inet_addr("192.168.0.3");
serverAddr.sin_port = htons(8000);

int status = connect(sock, (struct sockaddr*)&serverAddr, sizeof(serverAddr));
if(status == -1)
{
	return;
}

Build Console:

warning #225-D: function "inet_addr" declared implicitly

How do I resolve this warning?

Thanks in advance.

over 7 years ago

0 ToddMullanix over 7 years ago

TI__Guru* 96960 points

Hi Hokyun,

Which version of TI-RTOS are you using?

Todd

0 Hokyun Yu over 7 years ago in reply to ToddMullanix

Intellectual 530 points

I'm using 2.16.1.14.

0 Steven Connell over 7 years ago in reply to Hokyun Yu

TI__Mastermind 45025 points

There are a couple of different ways to solve this:

1. add an external declaration for the function into your .c file you show above:

extern int inet_addr(const char *str);

The above is a workaround, since including the header file that has the prototype for inet_addr() will result in build errors, so just extern-ing it will avoid that.

2. Use the inet_pton() API in place of inet_addr()

inet_pton is a "more standard" API. You can get it with:

#include <arpa/inet.h>

Steve

0 Hokyun Yu over 7 years ago in reply to Steven Connell

Intellectual 530 points

Thanks for the advice.

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RTOS/TM4C1294NCPDT: Server address to connect when NDK TCP client is configured(about inet_addr)