Part A-2
Please go to this link to view the program https://docs.google.com/document/d/1WkpKdAsXef1ANVi0sPy329jd2oWSMFA2/edit?usp=sharing&ouid=115844831217705059666&rtpof=true&sd=true
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Part B-3
Program 3B: CLIENT: #include <stdio.h> #include <sys/socket.h> #include <netinet/in.h> #include <string.h> int main() { int clientSocket, portNum, nBytes; char buffer[1024]; struct sockaddr_in serverAddr; socklen_t addr_size; clientSocket = socket(PF_INET, SOCK_STREAM, 0); portNum = 7891; serverAddr.sin_family = AF_INET; serverAddr.sin_port = htons(portNum); serverAddr.sin_addr.s_addr = inet_addr("127....
Part B-5
pgm10s.c #include <unistd.h> #include <stdio.h> #include <sys/socket.h> #include <stdlib.h> #include <netinet/in.h> #include <string.h> #define PORT 8080 int main(int argc, char const *argv[]) { int server_fd, new_socket, valread; struct sockaddr_in address; int opt = 1; int addrlen = sizeof(address); char buffer[1024] = {0}; char *hello = "Hello from server"; if ((server_fd = socket(AF_INET, SOCK_STREAM, 0)) == 0) { perror("socket failed"); exit(EXIT_FAILURE); } if (setsockopt(server_fd, SOL_SOCKET, SO_REUSEADDR, ...
Part B-4
Vi p9c.c #include <stdio.h> #include <sys/socket.h> #include <netinet/in.h> #include <string.h> int main(){ int clientSocket, portNum, nBytes; char buffer[1024]; struct sockaddr_in serverAddr; socklen_t addr_size; clientSocket = socket(PF_INET, SOCK_STREAM, 0); portNum = 7891; serverAddr.sin_family = AF_INET; serverAddr.sin_port = htons(portNum); serverAddr.sin_addr.s_addr = inet_addr("172.16.16.217"); memset(serverAddr.sin_zero, '\0', sizeof serverAddr.sin_zero); addr_size = sizeof serverAddr; connect(clientSocket, (struct sockaddr *) &serverAddr, addr_size); while(1){ printf("Type a sentence to send to server:\n"); fgets(buffer,1024,stdin); printf("You typed: %s",buffer); nBytes = ...
Part B-2
P6client.c #include<stdio.h> #include<stdlib.h> #include<errno.h> #include<string.h> #include<fcntl.h> #include<sys/types.h> #include<sys/stat.h> #include<unistd.h> #define FIFO1 "fifo1" #define FIFO2 "fifo2" int main() { char p[100], f[100], c[300]; int num, num2, f1,fd,fd2; mknod(FIFO1, S_IFIFO | 0666, 0); mknod(FIFO2, S_IFIFO|0666, 0); printf("\n\n waiting for server......\n\n\n"); fd = open ( FIFO1, O_WRONLY); printf("\n\n\n server online !! Enter the path .....\n\n"); wh...
Part B-1
#include <stdio.h> #include <string.h> #include <stdlib.h> #include <errno.h> #include <string.h> #include <sys/types.h> #include <sys/ipc.h> #include <sys/msg.h> #define PERMS 0644 struct my_msgbuf { long mtype; char mtext[200]; }; int main(void) { struct my_msgbuf buf; int msqid; int len; key_t key; system("touch msgq.txt"); if ((key = ftok("msgq.txt", 'B')) == -1) { perror("ftok"); exit(1); } if ((msqid = msgget(key, PERMS | IPC_CREAT)) == -1) { perror("msgget"); exit(1); } printf("me...
Part A-5
Lab pgm:5 Write a program to create an integer variable using shared memory concept and increment the variable simultaneously by two processes. Use semaphores to avoid race conditions #include <sys/types.h> #include<sys/ipc.h> #include <sys/shm.h> #include <unistd.h> #include <string.h> #include <errno.h> int main(void) { pid_t pid; int *shared; int shmid; shmid = shmget(IPC_PRIVATE, sizeof(int), IPC_CREAT | 0666); printf("shared Memory ID = %u",shmid); if (fork() ==0) { shared = shmat(shmid, (void *) 0, 0); printf("child pointer %u \n", shared); *shared=1; printf("child value=%d \n", *shared); sleep(2); printf("child value=%d \n", *shared); } else { ...