Untitled

#include <stdio.h>struct info{	char *arch;	char *os;};void getInfo( struct info *data){	data->arch = (char*) getenv("PROCESSOR_ARCHITECTURE");	if(data->arch ==NULL)data->arch = (char*)getenv("HOSTTYPE");	data->os = (char*) getenv("OS");	if(data->os ==NULL)data->os = (char*) getenv("OSTYPE");}void freeInfo(struct info *data){//	if(data->arch!=NULL)free(data->arch);//	if(data->os!=NULL)free(data->os);}void pc1(void){	printf ("-----------------------------------------\n");	printf("*** Intel Celeron x86-based PC ***\n\n");	printf("Size of:\n\tshort int = 16\n\tint = 32\n\tlong int = 32\n\tlong long int = 64\n\tint * = 32\n");	printf ("-----------------------------------------\n\n");}void sizeOf(void){	short int SHORT_INT;	int INT;	long int LONG_INT;	long long int LLONG_INT;	int *PINT;	printf("Size of:\n");	printf("\tshort int = %i\n",sizeof(SHORT_INT)*8);	printf("\tint = %i\n",sizeof(INT)*8);	printf("\tlong int = %i\n",sizeof(LONG_INT)*8);	printf("\tlong long int = %i\n",sizeof(LLONG_INT)*8);	printf("\tint * = %i\n",sizeof(PINT)*8);}int main(void){		struct info thisPC;	getInfo(&thisPC);	 		 	 	 // size of ....	printf("All sizes are in bits\n\n");	printf("Other machines\n");	pc1();	printf ("-----------------------------------------\n");	printf("*** This machine ***\n\n");	(thisPC.arch !=NULL) ? printf("Arch: \t%s\n",thisPC.arch): printf("Arch: \tUnknown\n");		(thisPC.os !=NULL) ? printf("OS: \t%s\n",thisPC.os): printf("OS: \tUnknown\n");		sizeOf();	printf ("-----------------------------------------\n\n");			freeInfo(&thisPC);	return 0;}