keyboard_send.c

sparc硬件平台上的键盘驱动

#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>

#define LOCALHOST "localhost"
#define TEST_HOST 7002
//#define TEST_HOST 1000
#define BUFFER_LEN 1024

#ifdef CROSS
#include <uip/uip_arp.h>
#include <uip/uip_greth.h>

static void send_key(void)
{
    char ch;
    char buf[BUFFER_LEN];

    ch = 'i'; /* 随便初始化一个值，第一次进入循环时不退出就可以 */
    while('q' != ch)
    {
        printf("put q to exit>");
        ch = getchar();

        buf[0] = ch;
        buf[1] = '\0';
        uip_send(buf, 2);
        printf("  Sock send the %c\n", ch);
    }
}

int main(void)
{
    u16_t ipaddr[2];
    
    uip_init();
    uip_ipaddr(ipaddr, 192,168,0,153);

   /*  while(1)
    {
        if (uip_connected())
        {
            printf("has connected\n");
            break;
        }
    }
   */

    uip_connect(ipaddr, HTONS(TEST_HOST));

    send_key();

    return 0;
}

#else /* do the x86 */
#include <sys/socket.h>
#include <sys/types.h>
#include <arpa/inet.h>
#include <netdb.h>

static int get_connected_socket(void);
static void send_key_by_sock(int sock);

int main(int argc, char **argv) 
{ 
    int sock; 

    sock = get_connected_socket();
    send_key_by_sock(sock);
    
    close(sock); 

    return 0;
} 

static void send_key_by_sock(int sock)
{
    char ch;
    char buf[BUFFER_LEN];

    ch = 'i'; /* 随便初始化一个值，第一次进入循环时不退出就可以 */
    while('q' != ch)
    {
        printf("put q to exit>");
        ch = getchar();

        buf[0] = ch;
        buf[1] = '\0';
        if (send(sock, buf, 1, 0))
        {
            perror("gsending on stream socket");
        }
        printf("  Sock send the %c\n", ch);
    }
}

static int get_connected_socket(void)
{
    int sock; 
    struct sockaddr_in server; 
    struct hostent *hp; 

    /* 建立套接字 */ 
    sock = socket(AF_INET, SOCK_STREAM, 0); 
    if (sock < 0) 
    { 
        perror("opening stream socket"); 
        exit(1); 
    } 
    
    /* 使用命令行中指定的名字连接套接字 */ 
    server.sin_family = AF_INET; 
    hp = gethostbyname(LOCALHOST); 
    if (NULL == hp) 
    { 
        fprintf(stderr, "g%s: unknown host \n", LOCALHOST); 
        exit(2); 
    } 
    
    printf("host address is %s\n", (char *)hp->h_addr);
    memcpy((void *)&server.sin_addr, (void *)hp->h_addr, hp->h_length); 
    server.sin_port = htons(TEST_HOST); 

    if (connect(sock, (struct sockaddr*)&server, sizeof(server)) < 0)
    { 
        perror("gconnecting stream socket"); 
        exit(3); 
    } 

    return sock;
}
#endif /* end x86 */