程式功能：
程式如下：
（1）、server.c
#include #include #include #include #include #include #include struct message
;void list_file(int , struct message *);
void get_file(int , struct message *);
void put_file(int , struct message *);
int main(int argc, const char *argv)
if ((listen_fd = socket(af_inet, sock_stream, 0)) < 0)
server_addr.sin_family = af_inet;
server_addr.sin_port = htons(atoi(argv[2]));
server_addr.sin_addr.s_addr = inet_addr(argv[1]);
client_addrlen = sizeof(struct sockaddr);
if (bind(listen_fd, (struct sockaddr *)&server_addr, sizeof(server_addr)) < 0)
listen(listen_fd, 5);
while(1)
memset(&msg, 0, sizeof(msg));
recv(socket_fd, &msg, sizeof(msg), 0);
printf("cmd : %s\n", msg.cmd);
if (strcmp(msg.cmd, "list") == 0)
list_file(socket_fd, &msg);
if (strcmp(msg.cmd, "get") == 0)
get_file(socket_fd, &msg);
if (strcmp(msg.cmd, "put") == 0)
put_file(socket_fd, &msg);
}return 0;
}void list_file(int socket_fd, struct message *msg)
memset(buf, 0, sizeof(buf));
while ((dp = readdir(dir)) != null)
send(socket_fd, buf, strlen(buf) + 1, 0);
close(socket_fd);
return ;
}void get_file(int socket_fd, struct message *msg)
memset(buf, 0, sizeof(buf));
while((num = read(fd, buf, sizeof(buf))) > 0)
close(fd);
close(socket_fd);
return ;
}void put_file(int socket_fd, struct message *msg)
memset(buf, 0, sizeof(buf));
while((num = recv(socket_fd, buf, sizeof(buf), 0)) > 0)
write(fd, buf, num);
close(fd);
close(socket_fd);
return ;
}
#include #include #include #include #include #include #include struct message
;void list_file(struct message , char *, struct sockaddr_in);
void get_file(struct message , char *, char *, struct sockaddr_in);
void put_file(struct message , char *, char *, struct sockaddr_in);
int main(int argc, const char *argv)
server_addr.sin_family = af_inet;
server_addr.sin_port = htons(atoi(argv[2]));
server_addr.sin_addr.s_addr = inet_addr(argv[1]);
while (1)
return 0;
}void list_file(struct message msg, char *cmd, struct sockaddr_in server_addr)
if (connect(server_fd, (struct sockaddr *)&server_addr, sizeof(server_addr)) < 0)
strcpy(msg.cmd, cmd);
send(server_fd, &msg, sizeof(msg), 0);
usleep(500);
memset(buf, 0, sizeof(buf));
recv(server_fd, buf, sizeof(buf), 0);
printf("%s\n", buf);
close(server_fd);
return ;
}void get_file(struct message msg, char *cmd, char *filename, struct sockaddr_in server_addr)
if (connect(server_fd, (struct sockaddr *)&server_addr, sizeof(server_addr)) < 0)
if ((fd = open(filename, o_wronly | o_creat | o_trunc, 0666)) < 0)
strcpy(msg.cmd, cmd);
strcpy(msg.filename, filename);
send(server_fd, &msg, sizeof(msg), 0);
memset(buf, 0, sizeof(buf));
while ((num = recv(server_fd, buf, sizeof(buf), 0)) > 0)
printf("download ok!\n");
close(fd);
close(server_fd);
return ;
}void put_file(struct message msg, char *cmd, char *filename, struct sockaddr_in server_addr)
if (connect(server_fd, (struct sockaddr *)&server_addr, sizeof(server_addr)) < 0)
strcpy(msg.cmd, cmd);
strcpy(msg.filename, filename);
send(server_fd, &msg, sizeof(msg), 0);
usleep(500);
if ((fd = open(filename, o_rdonly)) < 0)
memset(buf, 0, sizeof(buf));
while ((num = read(fd, buf, sizeof(buf))) > 0)
send(server_fd, buf, num, 0);
printf("upload ok!\n");
close(fd);
close(server_fd);
return ;
}
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