59 lines
1.9 KiB
C
59 lines
1.9 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* create_client.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: jhalford <jack@crans.org> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2017/10/07 17:59:28 by jhalford #+# #+# */
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/* Updated: 2017/10/07 18:02:25 by jhalford ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "libft.h"
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int create_client(char *addr, int port, char *protoname)
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{
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int sock;
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struct protoent *proto;
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struct sockaddr_in sin;
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if (!(proto = getprotobyname(protoname)))
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return (-1);
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sock = socket(PF_INET, SOCK_STREAM, proto->p_proto);
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sin.sin_family = AF_INET;
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sin.sin_port = htons(port);
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sin.sin_addr.s_addr = inet_addr(addr);
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if (connect(sock, (const struct sockaddr *)&sin, sizeof(sin)) < 0)
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return (-1);
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return (sock);
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}
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void listener(int domain, int sock, int proto,
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void (*handler)(void *buf, int bytes, struct sockaddr_in *addr))
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{
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int sd;
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struct sockaddr_in addr;
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unsigned char buf[1024];
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int bytes;
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socklen_t len;
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len = sizeof(addr);
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sd = socket(domain, sock, proto);
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if (sd < 0)
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{
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perror("listener socket");
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exit(0);
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}
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while (1)
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{
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bzero(buf, sizeof(buf));
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bytes = recvfrom(sd, buf, sizeof(buf), 0,
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(struct sockaddr*)&addr, &len);
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if (bytes > 0 && handler)
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handler(buf, bytes, &addr);
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else
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perror("recvfrom");
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}
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exit(0);
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}
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