The Big Programming Thread - Page 857

#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <fcntl.h>
#include <time.h>

struct output
{
   char privateFIFO[14];
   int getpid;
   int integer;
   int sum;
}
inst;

main(void)
{
   int read_from_client;
   int privateFIFO;
   struct output;
   
   printf("Input a name for your FIFO (up to 14 characters): ");
   fgets(inst.privateFIFO, 15, stdin);
   printf("\nFIFO name is %s", inst.privateFIFO);
   
   printf("Input an integer: ");
   scanf("%d", &inst.integer);
   
   write(read_from_client, &inst, sizeof(inst));
   
   if ((mkfifo("inst.privateFIFO",0666)<0 && errno != EEXIST))
   {
	  perror("cant create FIFO1");
	  exit(-1);
   }
   
   read(privateFIFO, &inst, sizeof(inst));
   
   printf("The sum of all integers received by the server is %d", inst.sum);
   
   return 0;
}

#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <fcntl.h>

struct output
{
   char privateFIFO[14];
   int getpid;
   int integer;
   int sum;
}
inst;

main(void)
{
   int read_from_client;
   int i;
   struct output;
   int sum[3];
   char tmp1[14];
   char tmp2[14];
   char tmp3[14];
   
   for(i < 0; i < 3; i++) //should read from the clients and write the integers to an array
   {
   read(read_from_client, &inst, sizeof(inst));
   inst.integer = sum[i];
   if(i == 0) //should write the private FIFO names to separate arrays
   {
	   tmp1 = inst.privateFIFO;
   }
   else if(i == 1)
   {
	   tmp2 = inst.privateFIFO;
   }
   else
   {
	   tmp3 = inst.privateFIFO;
   }
   }
   
   inst.sum = sum[0] + sum[1] + sum[2]; //the integer
   
   write(tmp1, &inst, sizeof(inst)); //this should send out the sum to each client via a private array, no idea how to make it work
   write(tmp2, &inst, sizeof(inst));
   write(tmp3, &inst, sizeof(inst));
}