From: Simone Piccardi Date: Tue, 3 Jun 2003 17:18:35 +0000 (+0000) Subject: Aggiunto file rimasto in locale X-Git-Url: https://gapil.gnulinux.it/gitweb/?p=gapil.git;a=commitdiff_plain;h=da2093c61c0ed17932e6b634ca832e99a7c2ca4d;hp=13e1dfef7b970db44781986970292e62ad7c7c58 Aggiunto file rimasto in locale --- diff --git a/listati/TCP_iter_daytimed.c b/listati/TCP_iter_daytimed.c new file mode 100644 index 0000000..5f9b116 --- /dev/null +++ b/listati/TCP_iter_daytimed.c @@ -0,0 +1,56 @@ +#include /* predefined types */ +#include /* include unix standard library */ +#include /* IP addresses conversion utilities */ +#include /* socket library */ +#include /* include standard I/O library */ +#include +#define MAXLINE 80 +#define BACKLOG 10 +int main(int argc, char *argv[]) +{ +/* + * Variables definition + */ + int list_fd, conn_fd; + int i; + struct sockaddr_in serv_add; + char buffer[MAXLINE]; + time_t timeval; + ... + /* create socket */ + if ( (list_fd = socket(AF_INET, SOCK_STREAM, 0)) < 0) { + perror("Socket creation error"); + exit(-1); + } + /* initialize address */ + memset((void *)&serv_add, 0, sizeof(serv_add)); /* clear server address */ + serv_add.sin_family = AF_INET; /* address type is INET */ + serv_add.sin_port = htons(13); /* daytime port is 13 */ + serv_add.sin_addr.s_addr = htonl(INADDR_ANY); /* connect from anywhere */ + /* bind socket */ + if (bind(list_fd, (struct sockaddr *)&serv_add, sizeof(serv_add)) < 0) { + perror("bind error"); + exit(-1); + } + /* listen on socket */ + if (listen(list_fd, BACKLOG) < 0 ) { + perror("listen error"); + exit(-1); + } + /* write daytime to client */ + while (1) { + if ( (conn_fd = accept(list_fd, (struct sockaddr *) NULL, NULL)) <0 ) { + perror("accept error"); + exit(-1); + } + timeval = time(NULL); + snprintf(buffer, sizeof(buffer), "%.24s\r\n", ctime(&timeval)); + if ( (write(conn_fd, buffer, strlen(buffer))) < 0 ) { + perror("write error"); + exit(-1); + } + close(conn_fd); + } + /* normal exit */ + exit(0); +}