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#include <stdio.h>
#include <stdlib.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <unistd.h>
#include <string.h>
#include <time.h>
char* V[10];
int
main()
{
int sockfd, clientfd;
struct sockaddr_in addr;
socklen_t addrlen;
int n;
char buffer[256];
int vi;
int i;
int is_present;
int x_rand;
srand(time(NULL));
if ((sockfd = socket(PF_INET, SOCK_STREAM, 0)) == -1) {
perror("socket");
exit(1);
}
addr.sin_family = AF_INET;
addr.sin_addr.s_addr = INADDR_ANY;
addr.sin_port = htons(7777);
addrlen = sizeof(addr);
if (bind(sockfd, (struct sockaddr*) &addr, addrlen) == -1) {
perror("bind");
exit(1);
}
if (listen(sockfd, 1) == -1) {
perror("listen");
exit(1);
}
for (i = 0; i < 10; ++i) {
V[i] = malloc(sizeof(char) * 255);
}
vi = 0;
while (1) {
if ((clientfd = accept(sockfd, (struct sockaddr*) &addr, &addrlen)) == -1) {
perror("accept");
continue;
}
if ((n = read(clientfd, buffer, sizeof(buffer))) == -1) {
perror("read");
goto client_close;
}
buffer[n-1] = 0;
if (strncmp(buffer, "LIST", 4) == 0) {
for (i = 0; i < vi; ++i)
printf("%s\n", V[i]);
} else {
is_present = 0;
for (i = 0; i < vi; ++i) {
if (strcmp(buffer, V[i]) == 0) {
is_present = 1;
printf("presente\n");
}
}
if (!is_present) {
if (vi == 9) {
x_rand = rand() % 10;
strcpy(V[x_rand], buffer);
} else {
strcpy(V[vi++], buffer);
}
printf("inserita\n");
}
}
client_close:
close(clientfd);
}
for (i = 0; i < 10; ++i) {
free(V[i]);
}
close(sockfd);
return 0;
}
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