今天在弄一下啊小小程序的时候，报错，出现了问题，先看代码

int main(int argc, char* argv[])
{
        char *filename = "interface_ipset_1_1.json";
	char* split1 = "_";
	char* split2 = ".";
	char  splitfile1[4][NAME_MAX];
        sagent_string_split(filename,split1,splitfile1,4);
	printf("1 = %s.",splitfile1[0]);
        reuturn 0;}

int32_t sagent_string_split(char * str, const char * split,
        char split_str[][NAME_MAX], int32_t max_num)
{
    if (st== NULL || split == NULL || split_str == NULL || max_num <= 0)
    {
        printf("sagent_string_split params have error!\n");
    }
	char* result = NULL;
	char* endstr = NULL;
    	result = strtok_r(str, split,&endstr);
    	int32_t i = 0;

    	while (result )
        {
        	if (i >= max_num)
       	 	{
            		printf("split num is more than max_num = %d.", max_num);
            		return -1;
        	}
       	 	printf("i = %d,result = %s",i,result);
        	strncpy(split_str[i++], result, NAME_MAX - 1);
        	result = strtok(NULL, split);
      }
    return 0;
}


int main(int argc, char* argv[])
{
        char *filename = "interface_ipset_1_1.json";
	char* split1 = "_";
	char* split2 = ".";
	char  splitfile1[4][NAME_MAX];
        sagent_string_split(filename,split1,splitfile1,4);
	printf("1 = %s.",splitfile1[0]);
    
	reuturn 0;
}