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1#include "csapp.h"
2#include "smallServerLib.c"
3
4#define BUFFLEN 256
5#define SET 0
6#define GET 1
7#define DIGEST 2
8#define RUN 3
9
10void set(char* variableName, char* value, char** varnamearray, char** valarray, int* counter);
11char* get(char* variableName, char** varnamearray, char** valarray, int counter);
12
13int main(int argc, char** argv){
14  //initialize all needed variables
15  int listenfd, connfd, port, SecretKey;
16  socklen_t clientLen;
17  rio_t rio;
18  struct sockaddr_in clientaddr;
19  struct hostent *hp;
20  char *haddrp;
21  char** varnamearray;
22  char** valarray;
23  int counter =0;
24
25  SecretKey = atoi(argv[2]);
26  port = atoi(argv[1]);
27
28  //listen for connection request
29  listenfd = Open_listenfd(port);
30
31  //establish connection
32  while(1){
33    clientLen = sizeof(clientaddr);
34    connfd = Accept(listenfd, (SA*)&clientaddr, &clientLen);
35    hp = Gethostbyaddr((const char*)&clientaddr.sin_addr.s_addr, sizeof(clientaddr.sin_addr.s_addr),AF_INET);
36    haddrp = inet_ntoa(clientaddr.sin_addr);
37    printf("%s %s\n", hp->h_name, haddrp);
38    Rio_readinitb(&rio, connfd);
39
40    //initialize init struct
41    struct init_request sireq;
42    Rio_readn(connfd, &sireq, sizeof(sireq));
43    struct init_response sires;
44
45    //if secret key is wrong, replies -1
46    if ((long)SecretKey != ntohl(sireq.secretKey)){
47      printf("\nSecret key = %d\n", ntohl(sireq.secretKey));
48      printf("--------------------------\n");
49
50      //return to client
51      sires.returnCode = -1;
52      Rio_writen(connfd, &sires, sizeof(sires));
53    }
54
55    //else do this switch if statement tree
56    else{
57      //SET
58      if(ntohs(sireq.requestType == SET)){
59        //return to client
60        sires.returnCode = 0;
61        Rio_writen(connfd, &sires, sizeof(sires));
62
63        char svariableName[15];
64        char svalue[100];
65        struct set_request sreq;
66
67        Rio_readn(connfd, &sreq, 19+strlen(sreq.val));
68        strcpy(svariableName, sreq.varName);
69        strcpy(svalue, sreq.val);
70        set(svariableName, svalue, varnamearray, valarray, &counter);
71      }
72
73      //GET
74      else if(ntohs(sireq.requestType) == GET){
75        //return to client
76        sires.returnCode = 0;
77        Rio_writen(connfd, &sires, sizeof(sires));
78
79        char svariableName[15];
80        struct get_request sreq;
81
82        Rio_readn(connfd, &sreq, sizeof(svariableName));
83        strcpy(svariableName, sreq.varName);
84        char* retVal = get(svariableName, varnamearray, valarray, counter);
85        printf("return value: %s\n", retVal);
86      }
87
88      //DIGEST
89      else if(ntohl(sireq.requestType) == DIGEST){
90        printf("digest");
91        digest();
92      }
93
94      //RUN
95      else if(ntohl(sireq.requestType) == RUN){
96        printf("run");
97        run();
98      }
99
100      //EVERYTHING ELSE
101      else {
102        sires.returnCode = -1;
103      }
104
105      printf("you made it all the way through once\n");
106    }
107  }
108  return 0;
109}
110
111//helper functions
112
113void set(char* variableName, char* value, char** varnamearray, char** valarray, int* counter){
114  //add values and variables to arrays
115  varnamearray[*counter] = variableName;
116  valarray[*counter] = value;
117  printf("name: %s\n", varnamearray[*counter]);
118  printf("value: %s\n", valarray[*counter]);
119  (counter)++;
120}
121
122char* get(char* variableName, char** varnamearray, char** valarray, int counter){
123  //find index of variableName
124  printf("namecorrect: %s\n", variableName);
125  printf("counter: %d\n", counter);
126  for (int i=0; i<counter; i++){
127    printf("namearray: %s\n", varnamearray[i]);
128    printf("valuearray: %s\n", valarray[i]);
129    if (varnamearray[i]==variableName){
130      printf("hiday");
131      return valarray[i];
132    }
133  }
134  return 0;
135}
136
137int digest(){
138  return 0;
139}
140
141int run(){
142  return 0;
143}