#include "setAddr.h"
mAddrs *initAddr(void)
{
    return calloc(1,sizeof(mAddrs));
}


int readAddr(mAddrs *addr)
{
    int fd = open(".setting",O_RDWR|O_CREAT,0644);
    if(fd<0)
    {
        perror("open");
        return -1;
    }
    memset(addr,0,sizeof(mAddrs));
    int len = read(fd,addr,sizeof(mAddrs));
    if(len<0)
    {
        perror("open");
    }
    else if(len == 0)
    {
        printf("file is NULL,please input shell arg!\n");
    }
    close(fd);
    return len;
}
int writeAddr(struct mAddrs* addr)
{
    if(addr == NULL)return -1;
    int fd = open(".setting",O_RDWR | O_CREAT | O_TRUNC,0644);
    if(fd<0)
    {
        perror("open");
        return -1;
    }
    int len = write(fd,addr,sizeof(mAddrs));
    if(len<=0)
    {
        printf("write is failed!\n");
        return -1;
    }
    close(fd);
    return 0;
}

void distroyAddr(struct mAddrs* addr)
{
    if(addr!=NULL)
    {
        free(addr);
        addr = NULL;
    }
}