[libuv] Question about libuv

[Florent Cabret]

Hi,

I dont know what is wrong with my code but it trigger a memory exception 
in uv_process_tcp_connect_req at line req->cb(req, 
uv_translate_sys_error(err)); where it call a random address.

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// gcc -Os -s -nostartfiles -e _entry -I./include -L. tcp_client.c -o tcp_client -luv -lws2_32 -lpsapi -liphlpapi -luserenv
#include <stdint.h>
#include <stdio.h>
#include <uv.h>

void tcp_read_cb(uv_stream_t* stream, ssize_t nread, const uv_buf_t* buf){
	puts(buf->base);
}

void tcp_alloc_cb(uv_handle_t* handle, size_t suggested_size, uv_buf_t* buf){
	buf->base = malloc(suggested_size);
	buf->len  = suggested_size;
}

void tcp_write_cb(uv_write_t* req, int status){
	printf("write -> %d\n", status);

	uv_read_start(req->handle, tcp_alloc_cb, tcp_read_cb);
}

void tcp_connect_cb(uv_connect_t* req, int status){
	printf("connect -> %d\n", status);

	uv_buf_t bufs[1];
	uint8_t msg[] = "GET / HTTP/1.1\r\n"
					"Host: google.fr\r\n"
					"Connection: close\r\n"
					"\r\n";
	bufs[0].base = msg;
	bufs[0].len  = sizeof(msg);

	uv_write(NULL, req->handle, bufs, 1, tcp_write_cb);
}

void tcp_getaddrinfo_cb(uv_getaddrinfo_t* req0, int status, struct addrinfo* res){
	printf("getaddrinfo -> %d\n", status);

	uv_tcp_t tcp;
	uv_tcp_init(req0->loop, &tcp);

	uint8_t addr[16];
	uv_ip4_name((struct sockaddr_in*)res->ai_addr, addr, sizeof(addr));
	printf("ip4_name -> %s", addr);
	
	for(struct addrinfo *cur = res; cur != NULL; cur = cur->ai_next){
		uv_connect_t req1;
		uv_tcp_connect(&req1, &tcp, res->ai_addr, tcp_connect_cb);
	}
	
	uv_freeaddrinfo(res);
}

void tcp_idle_cb(uv_idle_t *idle){
	printf("idle -> %d\n", uv_now(idle->loop));
	uv_idle_stop(idle);
}

void entry(){
	uv_loop_t *loop = uv_default_loop();

	uv_idle_t idle;
	uv_idle_init(loop, &idle);

	uv_idle_start(&idle, tcp_idle_cb);

	uv_getaddrinfo_t req;
	uv_getaddrinfo(loop, &req, tcp_getaddrinfo_cb, "google.fr", "http", NULL);

	uv_run(loop, UV_RUN_DEFAULT);

	uv_loop_close(loop);
	exit(0x00);
}