C PROGRAMMING.you are to write a TCP/IP server that can build up a graph of a network ofnetworks (using the supplied graph library (graph.h) and implementation of Dijkstra’s (Dijkstra.h) algorithm) and thenquery that graph to find out which link between two networks should be used as the next hop tosend a packet of data from one network to another within the network of networks (using thesupplied implementation of Dijkstra’s algorithm).using the following program as a start point:/* * NetworkServer.c * ProgrammingPortfolio Skeleton * *//* You will need to include these header files to be able to implement the TCP/IP functions */#include <stdio.h>#include <stdlib.h>#include <string.h>#include <sys/types.h>#include <netinet/in.h>#include <netdb.h>#include <fcntl.h>#include <unistd.h>#include <errno.h>#include <sys/socket.h>/* You will also need to add #include for your graph library header files */int main(int argc, const char * argv[]){ int serverSocket = -1; printf("Programming Portfolio 2022 Implementation\n"); printf("=========================================\n\n"); /* Insert your code here to create, and the TCP/IP socket for the Network Server * * Then once a connection has been accepted implement protocol */ h dijkstra.h379 bytes123456****/dijkstras.hProgramming Portfolio7#ifndef dijkstra_h8 #define dijkstra_h910/* an entry storing the shortest path */11/* next_hop is the next vertex in the path */12/* weight is the total weight of the path to dst */13 typedef struct Path14{151617181920 Path *dijkstra (Graph *graph, int id, int *pnEntries);2122 #endif /* dijkstras_h */23int next_hop;double weight;} Path;Open in Web IDEVReplaceDeleteG h graph.h 1.16 KB1 #ifndef _GRAPH_H#define _GRAPH_H234 #include "linked_list.h"56789/* each node in the adjacency List stores a vertex */10 /* a vertex has a unique numerical id */1111121217131415161718LO19202142223244725426202728co29SO302434253536273720394040/* a graph represented as an adjacency List /typedef LinkedList Graph;41414243T/* and stores a list of edges from the vertex ³/typedef struct Vertex {int id;LinkedList "edges;MA313233 void add_edge_undirected (Graph *, int, int, double);void remove_edge (Graph *, int, int);void remove_edges (Graph *, int);48194950} vertex;/* each node in the list of edges for a vertex store the edge weight *//* and the destination vertex 3/typedef struct Edge {double weight;Vertex *vertex;} Edge;/* function prototypes */Vertex *init_vertex(int);2038 void free_vertex (Vertex *);Graph *init_graph (void);void free_graph (Graph *);void print_graph (Graph *);Vertex *find_vertex (Graph *, int);vertex *add_vertex (Graph *, int);void remove_vertex (Graph *, int);Edge *add_edge (Graph *, int, int, double);Edge *init_edge (void);void free_edge (Edge *);int *get_vertices (Graph *, int *);Edge **get_edges (Graph *, Vertex *, int *);444445 Edge *get_edge (Graph *, int, int);46 int edge_destination (Edge *);47double edge_weight (Edge *);#endifOpen in Web IDEvReplace Delete GOJ

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Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

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Section: Chapter Questions

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Question

C PROGRAMMING.

you are to write a TCP/IP server that can build up a graph of a network of
networks (using the supplied graph library (graph.h) and implementation of Dijkstra’s (Dijkstra.h) algorithm) and then
query that graph to find out which link between two networks should be used as the next hop to
send a packet of data from one network to another within the network of networks (using the
supplied implementation of Dijkstra’s algorithm).

using the following program as a start point:

/*
* NetworkServer.c
* ProgrammingPortfolio Skeleton
*
*/

/* You will need to include these header files to be able to implement the TCP/IP functions */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <netinet/in.h>
#include <netdb.h>
#include <fcntl.h>
#include <unistd.h>
#include <errno.h>
#include <sys/socket.h>

/* You will also need to add #include for your graph library header files */

int main(int argc, const char * argv[])
{
int serverSocket = -1;

printf("Programming Portfolio 2022 Implementation\n");
printf("=========================================\n\n");

/* Insert your code here to create, and the TCP/IP socket for the Network Server
*
* Then once a connection has been accepted implement protocol
*/

h dijkstra.h379 bytes
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*/
dijkstras.h
Programming Portfolio
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#ifndef dijkstra_h
8 #define dijkstra_h
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/* an entry storing the shortest path */
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/* next_hop is the next vertex in the path */
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/* weight is the total weight of the path to dst */
13 typedef struct Path
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{
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20 Path *dijkstra (Graph *graph, int id, int *pnEntries);
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22 #endif /* dijkstras_h */
23
int next_hop;
double weight;
} Path;
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h graph.h 1.16 KB
1 #ifndef _GRAPH_H
#define _GRAPH_H
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4 #include "linked_list.h"
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/* each node in the adjacency List stores a vertex */
10 /* a vertex has a unique numerical id */
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LO
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co
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/* a graph represented as an adjacency List /
typedef LinkedList Graph;
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T
/* and stores a list of edges from the vertex ³/
typedef struct Vertex {
int id;
LinkedList "edges;
MA
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33 void add_edge_undirected (Graph *, int, int, double);
void remove_edge (Graph *, int, int);
void remove_edges (Graph *, int);
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} vertex;
/* each node in the list of edges for a vertex store the edge weight */
/* and the destination vertex 3/
typedef struct Edge {
double weight;
Vertex *vertex;
} Edge;
/* function prototypes */
Vertex *init_vertex(int);
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38 void free_vertex (Vertex *);
Graph *init_graph (void);
void free_graph (Graph *);
void print_graph (Graph *);
Vertex *find_vertex (Graph *, int);
vertex *add_vertex (Graph *, int);
void remove_vertex (Graph *, int);
Edge *add_edge (Graph *, int, int, double);
Edge *init_edge (void);
void free_edge (Edge *);
int *get_vertices (Graph *, int *);
Edge **get_edges (Graph *, Vertex *, int *);
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45 Edge *get_edge (Graph *, int, int);
46 int edge_destination (Edge *);
47
double edge_weight (Edge *);
#endif
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