int
main(int argc, char **argv) {
mpf_t *factoriales;
mpf_t pi;
long n, m, k1, k2;
int c;
int nmin = 0, nmax = 100, kmin= 0, kmax= 10, q = 1, PREC = 1000;
double tau = 1.0;
while ( (c = getopt(argc, argv, "hn:N:k:K:p:t:q:")) != -1) {
switch (c) {
case 'h':
usage();
exit(0);
case 'n':
nmin = atoi(optarg);
break;
case 'N':
nmax = atoi(optarg);
break;
case 'k':
kmin = atoi(optarg);
break;
case 'K':
kmax = atoi(optarg);
break;
case 'p':
PREC = atoi(optarg);
break;
case 't':
tau = strtod(optarg, NULL);
break;
case 'q':
q = atoi(optarg);
break;
default:
usage();
exit(0);
}
}
argc -= optind;
argv += optind;
mpf_set_default_prec( (unsigned long int) PREC);
if ( (factoriales = (mpf_t *) malloc((NFAC+1)*sizeof(mpf_t))) == NULL)
perror("Allocating space for factoriales");
readfac(factoriales);
readpi(pi);
for (n=nmin; n<=nmax; n++) {
for (m=n; m<=nmax; m++) {
for (k1=kmin; k1<=kmax; k1++) {
for (k2=k1; k2<=kmax; k2++) {
omega(n, m, tau, q, k1, k2, factoriales, pi);
}
}
}
}
printf("\n");
exit(1);
}
int main(int argc, char *argv[]){
/*read the name and password of patient1 from the file*/
char msg[MAXDATALEN] = "authenticate ";
char *filename = "patient2.txt";
char *patientinfo = readpi(filename);
if(!patientinfo){
fprintf(stderr, "Error in reading info of patient2.\n");
return 3;
}
strcat(msg, patientinfo);
char *name = (char *)malloc(MAXDATALEN * sizeof(char));
memset(name, 0, (MAXDATALEN * sizeof(char)));
char *password = (char *)malloc(MAXDATALEN * sizeof(char));
memset(password, 0, (MAXDATALEN * sizeof(char)));
const char delim[2] = " ";
char *token;
token = strtok(patientinfo, delim);
strcpy(name, token);
token = strtok(NULL, delim);
strcpy(password, token);
char *p2insurfile = "patient2insurance.txt";
char *p2insur = (char *)malloc(MAXDATALEN * sizeof(char));
memset(p2insur, 0, (MAXDATALEN * sizeof(char)));
readinsurinfo(p2insur, p2insurfile);
int sockfd;
struct addrinfo hints, *servinfo, *p;
int retval;
char s[INET6_ADDRSTRLEN];
char buf[MAXDATALEN];
int numbytes;
memset(&hints, 0, sizeof(hints));
hints.ai_family = AF_INET;
hints.ai_socktype = SOCK_STREAM;
if ((retval = getaddrinfo("nunki.usc.edu", SERVERPORTNUM, &hints, &servinfo)) != 0) {
fprintf(stderr, "getaddrinfo: %s\n", gai_strerror(retval));
return 1;
}
for(p = servinfo; p != NULL; p = p->ai_next) {
if ((sockfd = socket(p->ai_family, p->ai_socktype,
p->ai_protocol)) == -1) {
perror("client: socket");
continue;
}
if (connect(sockfd, p->ai_addr, p->ai_addrlen) == -1) {
close(sockfd);
perror("client: connect");
continue;
}
break;
}
int get;
struct sockaddr_in client_addr;
socklen_t clientSockLength = sizeof(struct sockaddr_in);
get=getsockname(sockfd,(struct sockaddr *) &client_addr,&clientSockLength);
if (get== -1) {
perror("getsockname");
exit(1);
}
printf("client IP:%s & port: %d\n\n",inet_ntoa(client_addr.sin_addr),ntohs(client_addr.sin_port));
if (p == NULL) {
fprintf(stderr, "client: failed to connect\n");
return 2;
}
inet_ntop(p->ai_family, get_in_addr((struct sockaddr *)p->ai_addr), s, sizeof s);
printf("client: connecting to %s\n", s);
freeaddrinfo(servinfo);
if (send(sockfd, msg, strlen(msg), 0) == -1){
perror("send");
exit(1);
}
printf("Authentication request from Patient 1 with username %s and password %s has been sent to the Healthe Center Server\n\n", name, password);
if ((numbytes = recv(sockfd, buf, MAXDATALEN-1, 0)) == -1) {
perror("recv");
exit(1);
}
buf[numbytes] = '\0';
printf("Patient 1 authentication result: %s\n\n", buf);
if(!strcmp(buf, "failure")){
fprintf(stderr, "Authentication failed. Exiting...");
close(sockfd);
exit(0);
}
printf("END of Phase 1 for Patient1\n\n");
char *reqava = "available";
if(send(sockfd, reqava, strlen(reqava), 0) == -1){
perror("send");
exit(1);
}
if ((numbytes = recv(sockfd, buf, MAXDATALEN-1, 0)) == -1) {
perror("recv");
exit(1);
}
buf[numbytes] = '\0';
printf("The following appointments are available for Patient 2:\n");
printf("%s\n", buf);
int avaindex[6];
int i;
for(i = 0; i < 6; i++){
avaindex[i] = -1;
}
getavaindex(avaindex, buf);
int done = 0;
char index[2];
while(!done){
printf("Please enter the preferred appointment index and press enter:");
scanf("%s", index);
int input;
input = atoi(index);
for(i = 0; i < 6; i++){
if(input == avaindex[i]){
done = 1;
break;
}
}
}
char *indexmsg = (char *)malloc(MAXDATALEN * sizeof(char));
memset(indexmsg, 0, (MAXDATALEN * sizeof(char)));
strcpy(indexmsg, "selection ");
strcat(indexmsg, index);
if(send(sockfd, indexmsg, strlen(indexmsg), 0) == -1){
perror("send");
exit(1);
}
memset(buf, 0, (MAXDATALEN * sizeof(char)));
if ((numbytes = recv(sockfd, buf, MAXDATALEN-1, 0)) == -1) {
perror("recv");
exit(1);
}
buf[numbytes] = '\0';
char *portnum = (char *)malloc(MAXDATALEN * sizeof(char));
memset(portnum, 0, (MAXDATALEN * sizeof(char)));
if(strcmp(buf, "notavailable")){
token = strtok(buf, delim);
token = strtok(NULL, delim);
strcpy(portnum, token);
printf("The requested appointment is available and reserved to Patient 1. The assigned doctor port number is %s\n\n", portnum);
}else{
printf("The requested appointment from Patient 2 is not available. Exiting...\n\n");
}
close(sockfd);
do_phase3(portnum, p2insur);
return 0;
}
