make_contact.c

来自「聊天程序~使用LINUX c 语言实现~」· C语言 代码 · 共 31 行

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/* make_contact.c */#include <cnaiapi.h>connection make_contact(computer c, appnum a) {	struct sockaddr_in	sockaddr;	int			sock;	cnaiapi_init();  	sock = socket(PF_INET, SOCK_STREAM, 0);	if (sock < 0)		return -1;	(void) memset(&sockaddr, 0, sizeof(struct sockaddr_in));	sockaddr.sin_family = AF_INET;	sockaddr.sin_port = htons(a);	sockaddr.sin_addr.s_addr = c;	if (connect(sock, (struct sockaddr *) &sockaddr, sizeof(struct sockaddr_in)) < 0) {#if defined(FreeBSD) || defined(LINUX)		close(sock);#endif		return -1;	}  	return sock;}   

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