问mysql_real_escape_string，包括输出中的斜杠(C，而不是PHP)

EN

#define CHUNK_SZ        (1024*256)
void insertdb(int16_t *data, size_t size, size_t nmemb)
{   
    static int16_t *buf; 
    static unsigned long index;
    static short initialized;
    unsigned long i;
    struct tm *info;
    time_t rawtime;
    char dbuf[12];
    char tbuf[12];
    char *chunk;

    if(initialized==0){
        buf = (int16_t *) malloc(CHUNK_SZ);
        initialized = 1;
    }

    if(index + (nmemb*size) + 1 >= CHUNK_SZ || do_exit == 1){
        time(&rawtime);
        info = localtime(&rawtime);
        snprintf(dbuf, 16, "%d-%02d-%02d", 1900+info->tm_year, 1+info->tm_mon, info->tm_mday);
        snprintf(tbuf, 16, "%02d:%02d:%02d", info->tm_hour, info->tm_min, info->tm_sec);

        chunk = (char *) malloc(index*2+1);

        mysql_real_escape_string(con, chunk, (char *) buf, index);
        char *st = "INSERT INTO %s (date, time, tag, data) VALUES ('%s', '%s', %d, '%s')";
        int len = strlen(st)+strlen(db_mon_table)+strlen(dbuf)+strlen(tbuf)+sizeof(tag)+index*2+1;
        char *query = (char *) malloc(len); 
        int qlen = snprintf(query, len, st, our_table, dbuf, tbuf, tag, chunk);

        if(mysql_real_query(con, query, qlen)){
            fprintf(stderr, "%s\n", mysql_error(con));
            mysql_close(con);
            exit(1);
        }

        free(chunk);
        index = 0;

    } else {
        memcpy((void *) buf+index, (void *) data, nmemb*size);
        index += (nmemb*size);
    }

    return;
}