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o after all calls to close If the parent wants to receive data from the child, it should close fd1, and the child should close fd0. If the parent wants to send data to the child, it should close fd0, and the child should close fd1. Since descriptors are shared between the parent and child, we should always be sure to close the end of pipe we aren't concerned with. On a technical note, the EOF will never be returned if the unnecessary ends of the pipe are not explicitly closed. NP Lab Manual , RNEC P a g e | 4 For more Details access portals : ravinuthalavs.webs.com Ravinuthalavs.blogspot.com
WEEK 1: Aim: Implement the pipe using fork () /* file name pipe.c */ # include # include # include # define MAXLINE 4096 int main() { int n,fd[2]; pid_t pid; char line[MAXLINE]; if(pipe(fd)
Page 1 and 2: IV YEAR B.Tech Network Programming
Page 3: o after call to fork o after both c
Page 7 and 8: Subject: NETWORK PROGRAMMING LAB Ye
Page 9 and 10: Output: [student@localhost ~]$ vi p
Page 11 and 12: Output: [student@localhost ~/khan]$
Page 13 and 14: } fclose(f); //closing file //creat
Page 17 and 18: Output: [student@localhost ~]$ cc m
Page 19 and 20: main() { int shmid; int semid; key_
Page 21 and 22: } for (i = 0; i < CHILD_INCREMENT_C
Page 23 and 24: if (*parent_shm == (CHILD_INCREMENT
Page 27 and 28: Output: [student@localhost ~]$ cc t
Page 29 and 30: Output: [student@localhost ~]$ ./ t
Page 31 and 32: } bzero(&servaddr, sizeof(servaddr)
Page 41 and 42: servAddr.sin_addr.s_addr = htonl(IN
Page 43 and 44: Output: [student@localhost ~]$ cc u
Page 45 and 46: *error = 0; return FD_ISSET(sd,&soc
Page 47 and 48: if(n
Page 51 and 52: printf("%s: from %s:UDP%u : %s \n"
Page 55 and 56:
cliAddr.sin_family = AF_INET; cliAd
Page 57 and 58:
Output: [student@localhost ~]$ cc u
Page 59 and 60:
if(rc
Page 61 and 62:
Output: [student@localhost ~]$ cc u
Page 63 and 64:
if (select(sd+1,&socketReadSet,0,0,
Page 65 and 66:
} (struct sockaddr *) &echoServAddr
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