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| #include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <openssl/ssl.h>
#include <openssl/err.h>
int create_socket(int port)
{
int s;
struct sockaddr_in addr;
addr.sin_family = AF_INET;
addr.sin_port = htons(port);
addr.sin_addr.s_addr = htonl(INADDR_ANY);
s = socket(AF_INET, SOCK_STREAM, 0);
if (s < 0) {
perror("Erreur création socket");
exit(EXIT_FAILURE);
}
if (bind(s, (struct sockaddr*)&addr, sizeof(addr)) < 0) {
perror("Echec bind");
exit(EXIT_FAILURE);
}
if (listen(s, 1) < 0) {
perror("Echec listen");
exit(EXIT_FAILURE);
}
int opt = 1;
if (setsockopt((int) s, SOL_SOCKET, SO_REUSEADDR | SO_REUSEPORT, &opt, sizeof(opt)) != 0) {
printf("Echéc de paramètrage: %s\n", strerror(errno));
exit(EXIT_FAILURE);
}
return s;
}
void init_openssl()
{
SSL_load_error_strings();
OpenSSL_add_ssl_algorithms();
}
void cleanup_openssl()
{
EVP_cleanup();
}
SSL_CTX *create_context()
{
const SSL_METHOD *method;
SSL_CTX *ctx;
method = SSLv23_server_method();
ctx = SSL_CTX_new(method);
if (!ctx) {
perror("Unable to create SSL context");
ERR_print_errors_fp(stderr);
exit(EXIT_FAILURE);
}
return ctx;
}
void configure_context(SSL_CTX *ctx)
{
SSL_CTX_set_ecdh_auto(ctx, 1);
if (SSL_CTX_use_certificate_file(ctx, "cert.pem", SSL_FILETYPE_PEM) <= 0) {
ERR_print_errors_fp(stderr);
exit(EXIT_FAILURE);
}
if (SSL_CTX_use_PrivateKey_file(ctx, "privkey.pem", SSL_FILETYPE_PEM) <= 0 ) {
ERR_print_errors_fp(stderr);
exit(EXIT_FAILURE);
}
}
void main(int argc, char **argv)
{
int sock;
SSL_CTX *ctx;
init_openssl();
ctx = create_context();
printf(" configure\n");fflush(stdout);
configure_context(ctx);
printf(" configure OK\n");fflush(stdout);
srand (time (NULL));
int port=(int) 4400L+(((100L* rand())/ (long) RAND_MAX));
printf("port %d\n",port);fflush(stdout);
sock = create_socket(port);
struct sockaddr_in addr;
uint len = sizeof(addr);
SSL *ssl;
const char reply[] = "HTTPS/1.1 200 OK\r\nContent-length:1000000000\r\nContent-Type: text/html\r\n\r\n";
int client = accept(sock, (struct sockaddr*)&addr, &len);
if (client < 0) {
perror("Unable to accept");
exit(EXIT_FAILURE);
}
printf(" client OK\n");fflush(stdout);
//---------------------Négociation SSL-------------------------
printf(" SSL new\n");fflush(stdout);
ssl = SSL_new(ctx);
printf(" SSL set fd\n");fflush(stdout);
printf("%d\n",SSL_set_fd(ssl, client));
printf(" SSL set fd OK\n");fflush(stdout);
//------------------Ce qui pose problème------------------------------
int rep=SSL_accept(ssl);
if (rep <= 0) {
printf("%s",strerror(SSL_get_error(ssl,rep)));fflush(stdout);
SSL_shutdown(ssl);
SSL_free(ssl);
close(client);
close(sock);
SSL_CTX_free(ctx);
cleanup_openssl();
return;
// Erreurs diverses operation not permitted, input/output error, cypher incompatibles
}
//----------------------------------------------------------
void write(SSL* ssl,const char* buff,int l)
{
int pos=0;
while (pos<l)
{
pos+=SSL_write(ssl,&buff[pos],l-pos);
}
}
write(ssl, reply, strlen(reply));
printf(" SSL send OK\n");fflush(stdout);
char buff[1000];
SSL_read(ssl,buff,1000);
printf("%s\n",buff);fflush(stdout);
sprintf(buff,"<html> Bonjour\r\n\n\n</html>");
write(ssl,buff,strlen(buff));
sleep(30);
SSL_shutdown(ssl);
SSL_free(ssl);
close(client);
close(sock);
SSL_CTX_free(ctx);
cleanup_openssl();
return;
} |
