linux下实现c语言从redis获取元素，段位错误

#include
#include
#include
#include

#define CMD_MAX_LENGHT 256
typedef enum USE_RESULT
{
SUCCESS=0,
FAILURE=1
}USE_RESULT;

USE_RESULT LrangeUseBySid(char *sid);
USE_RESULT exeRedisStrCmd(char *cmd);

int main()
{
redisContext* context = redisConnect("127.0.0.1",6379);
if(context->err)
{

            printf("connecttion error:%s\n",context->errstr);
            return FAILURE;
    }
    printf("connect redis server success\n");
    USE_RESULT LrangeUseBySid(char *sid)
    {
            char cmd[CMD_MAX_LENGHT] = {0};
            if(NULL==sid)
            {
                    printf("%d NULL pointer\n",__LINE__);
                    return FAILURE;
            }
            snprintf(cmd,CMD_MAX_LENGHT,"LRANGE ACCTMSG:%s,%s",sid);
    }
    USE_RESULT exeRedisStrCmd(char *cmd)
    {
            if(NULL == cmd)
            {
                     printf("NULL pointer");
                     return FAILURE;
            }
            redisReply *reply = (redisReply *)redisCommand(context, cmd);
            if(NULL == reply)
            {
                    printf("%d execute command:%s failure\n",__LINE__,cmd);
                    redisFree(context);
                    return FAILURE;
            }
            if(!(reply->type == REDIS_REPLY_ARRAY && reply->elements > 0))
            {
                    printf("%d execute command:%s failure\n",__LINE__, cmd);
                    freeReplyObject(reply);
                    redisFree(context);
                    return FAILURE;
            }
            printf("%d,%lu\n",reply->type,reply->elements);
            int i = 0;
            for(i=0;i < reply->elements;i++)
            {
            if(i%2 ==0)
            {
                    printf("%s:",reply->element[i]->str);
            }
            else
            {
                    printf("%s\n",reply->element[i]->str);
            }
            }
            freeReplyObject(reply);
            redisFree(context);
            return SUCCESS;
    }

LrangeUseBySid("1 10");
return 0;
}

https://blog.csdn.net/comestart/article/details/53642845