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edgariscoding · Apr 28, 2016 · abad668 · abad668
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diff --git a/minor7-assignments/luis/Makefile b/minor7-assignments/luis/Makefile
@@ -0,0 +1,4 @@
+All:
+	gcc svrMinor7.c -oserver
+	gcc cliMinor7.c -oclient
+	gcc cli2Minor7.c -oclient2
diff --git a/minor7-assignments/luis/cli2Minor7.c b/minor7-assignments/luis/cli2Minor7.c
@@ -0,0 +1,116 @@
+//++++++++++++++++++++++++++++++++++++++++++
+// Author: Luis D. Chaparro
+// Course: CSCE_3600
+// Due Date: 04/12/2016
+// DescriptionL: Implementation of scokets
+//++++++++++++++++++++++++++++++++++++++++++
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <netdb.h> 
+
+void error(const char *msg)
+{
+    perror(msg);
+    exit(0);
+}
+
+int main(int argc, char *argv[]){
+	// Counters
+	int i;
+	int x = -1;
+	int s = -1;
+	srand(time(NULL));
+	int percent = 1;			// Get at least 20% returns
+	char tickets[15][6] = {0};	// Array to hold tickets
+	for(i = 0; i < 15; i++)		// Initialize array to 0
+		strcpy(tickets[i], "0");
+	// Main loop
+	for(i = 0; i < 15; i++){	
+		int sockfd, portno, n;
+		struct sockaddr_in serv_addr;
+		struct hostent *server;
+
+		char buffer[256];
+		if (argc < 3) {
+		fprintf(stderr,"usage %s hostname port\n", argv[0]);
+		exit(0);
+		}
+		portno = atoi(argv[2]);
+		sockfd = socket(AF_INET, SOCK_STREAM, 0);
+		if (sockfd < 0) 
+			error("ERROR opening socket");
+		server = gethostbyname(argv[1]);
+		if (server == NULL) {
+			fprintf(stderr,"ERROR, no such host\n");
+			exit(0);
+		}
+		bzero((char *) &serv_addr, sizeof(serv_addr));
+		serv_addr.sin_family = AF_INET;
+		bcopy((char *)server->h_addr, 
+			(char *)&serv_addr.sin_addr.s_addr,
+			server->h_length);
+		serv_addr.sin_port = htons(portno);
+		if (connect(sockfd,(struct sockaddr *) &serv_addr,sizeof(serv_addr)) < 0) 
+			error("ERROR connecting");
+
+		// Return random value
+		if( ((rand() % 10000 + 100 ) % 7 == 0 && percent < 4) || (percent != 4 && x >= 10) ){
+			//printf("Percent: %d\n", percent);
+			percent++;
+			s++;
+			char msg[24] = "[CLIENT 2]: RETURN ";
+			strcat(msg, tickets[s]);
+			printf("[CLIENT]: RETURN %s\n", msg+19);
+			n = write(sockfd, msg, sizeof(msg));
+			strcpy(tickets[s], "0");
+			if(n < 0) 
+				error("ERROR writing to socket");
+			bzero(buffer,256);
+			n = read(sockfd,buffer,255);
+
+			if(n < 0) 
+				error("ERROR reading from socket");
+
+			printf("[SERVER]: %s\n", buffer);
+			printf("[CLIENT]: Ticket %s returned\n", msg+19);	
+		}
+		// Buy Ticket
+		else{
+			printf("[CLIENT]: BUY\n");
+			n = write(sockfd, "[CLIENT 2]: BUY", 15);
+			if(n < 0) 
+				error("ERROR writing to socket");
+
+			bzero(buffer,256);
+			n = read(sockfd,buffer,255);
+
+			if(n < 0) 
+				error("ERROR reading from socket");
+
+			printf("[SERVER]: %s\n", buffer);
+			if(!strcmp(buffer, "Database full")){
+				printf("[CLIENT]: Buy failed\n");
+				continue;
+			}
+			else if(!strcmp(buffer, "Invalid ticket provided")){
+				printf("Ticket not exist\n");
+				continue;
+			}
+			else
+				strcpy(tickets[++x],buffer);
+		}
+
+		close(sockfd);
+	}
+	printf("[CLIENT]: Database Table:\n");
+	for(i = 0; i < 15; i++){
+		printf("[%d] %s\n", i, tickets[i]);
+	}
+    return 0;
+}
+
diff --git a/minor7-assignments/luis/cliMinor7.c b/minor7-assignments/luis/cliMinor7.c
@@ -0,0 +1,116 @@
+//++++++++++++++++++++++++++++++++++++++++++
+// Author: Luis D. Chaparro
+// Course: CSCE_3600
+// Due Date: 04/12/2016
+// DescriptionL: Implementation of scokets
+//++++++++++++++++++++++++++++++++++++++++++
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <netdb.h> 
+
+void error(const char *msg)
+{
+    perror(msg);
+    exit(0);
+}
+
+int main(int argc, char *argv[]){
+	// Counters
+	int i;
+	int x = -1;
+	int s = -1;
+	srand(time(NULL));
+	int percent = 1;			// Get at least 20% returns
+	char tickets[15][6] = {0};	// Array to hold tickets
+	for(i = 0; i < 15; i++)		// Initialize array to 0
+		strcpy(tickets[i], "0");
+	// Main loop
+	for(i = 0; i < 15; i++){	
+		int sockfd, portno, n;
+		struct sockaddr_in serv_addr;
+		struct hostent *server;
+
+		char buffer[256];
+		if (argc < 3) {
+		fprintf(stderr,"usage %s hostname port\n", argv[0]);
+		exit(0);
+		}
+		portno = atoi(argv[2]);
+		sockfd = socket(AF_INET, SOCK_STREAM, 0);
+		if (sockfd < 0) 
+			error("ERROR opening socket");
+		server = gethostbyname(argv[1]);
+		if (server == NULL) {
+			fprintf(stderr,"ERROR, no such host\n");
+			exit(0);
+		}
+		bzero((char *) &serv_addr, sizeof(serv_addr));
+		serv_addr.sin_family = AF_INET;
+		bcopy((char *)server->h_addr, 
+			(char *)&serv_addr.sin_addr.s_addr,
+			server->h_length);
+		serv_addr.sin_port = htons(portno);
+		if (connect(sockfd,(struct sockaddr *) &serv_addr,sizeof(serv_addr)) < 0) 
+			error("ERROR connecting");
+
+		// Return random value
+		if( ((rand() % 10000 + 100 ) % 7 == 0 && percent < 4) || (percent != 4 && x >= 10) ){
+			//printf("Percent: %d\n", percent);
+			percent++;
+			s++;
+			char msg[24] = "[CLIENT 1]: RETURN ";
+			strcat(msg, tickets[s]);
+			printf("[CLIENT]: RETURN %s\n", msg+19);
+			n = write(sockfd, msg, sizeof(msg));
+			strcpy(tickets[s], "0");
+			if(n < 0) 
+				error("ERROR writing to socket");
+			bzero(buffer,256);
+			n = read(sockfd,buffer,255);
+
+			if(n < 0) 
+				error("ERROR reading from socket");
+
+			printf("[SERVER]: %s\n", buffer);
+			printf("[CLIENT]: Ticket %s returned\n", msg+19);	
+		}
+		// Buy Ticket
+		else{
+			printf("[CLIENT]: BUY\n");
+			n = write(sockfd, "[CLIENT 1]: BUY", 15);
+			if(n < 0) 
+				error("ERROR writing to socket");
+
+			bzero(buffer,256);
+			n = read(sockfd,buffer,255);
+
+			if(n < 0) 
+				error("ERROR reading from socket");
+
+			printf("[SERVER]: %s\n", buffer);
+			if(!strcmp(buffer, "Database full")){
+				printf("[CLIENT]: Buy failed\n");
+				continue;
+			}
+			else if(!strcmp(buffer, "Invalid ticket provided")){
+				printf("Ticket not exist\n");
+				continue;
+			}
+			else
+				strcpy(tickets[++x],buffer);
+		}
+
+		close(sockfd);
+	}
+	printf("[CLIENT]: Database Table:\n");
+	for(i = 0; i < 15; i++){
+		printf("[%d] %s\n", i, tickets[i]);
+	}
+    return 0;
+}
+