mi connetto al server di posta e mi ricosce, ma i comandi dopo HELO vengono rifiutati
codice:ecco la risposta dal server : Server echoed1 '220 vsmtp3.tin.it ESMTP Service (7.0.019) ready ' Server echoed2 '250-vsmtp3.tin.it Missing required domain name in EHLO, defaulte d to your IP address [80.107.21.103] 250-DSN 250-8BITMIME 250-PIPELINING 250-HELP 250-AUTH=LOGIN 250-AUTH LOGIN CRAM-MD5 DIGEST-MD5 PLAIN 250-DELIVERBY 300 250 SIZE 29999104 ' Server echoed3 '500 command unrecognized equired domain name in EHLO, defaulted to your IP address [80.107.21.103] 250-DSN 250-8BITMIME 250-PIPELINING 250-HELP 250-AUTH=LOGIN 250-AUTH LOGIN CRAM-MD5 DIGEST-MD5 PLAIN 250-DELIVERBY 300 250 SIZE 29999104 ' Server echoed4 '500 command unrecognized equired domain name in EHLO, defaulted to your IP address [80.107.21.103] 250-DSN 250-8BITMIME 250-PIPELINING 250-HELP 250-AUTH=LOGIN 250-AUTH LOGIN CRAM-MD5 DIGEST-MD5 PLAIN 250-DELIVERBY 300 250 SIZE 29999104 ' Sending 'Connection Closing' commandcodice:Questo e' il pezzo del sorgente : #define MESHELO "ehlo\r\n\0" #define MESQUIT "QUIT\r\n\0" #define MESHELP "HELP\r\n\0" #define MESNOOP "NOOP\r\n\0" ... int main(int argc, char *argv[]) { if ( argc < 2 ) Usage(); if (strcmp(argv[1], "client") == 0 ) { // initialize wsock32.dll, requesting winsock 1.1 if (argc!=3 ) Usage(); if (!InitializeWinsock (MAKEWORD(1,1) ) ) return 1; client(argv[2]); WSACleanup(); } return 0; } void client(char * server_IP) { SOCKET fd; // "file" descriptor for the network socket SOCKADDR_IN saddr; char buf[MAX_STRING]; struct hostent *h; if ((h=gethostbyname(server_IP)) == NULL) { /* get the host info */ error("gethostbyname"); exit(1); } printf("Host name : %s\n", h->h_name); printf("IP Address : %s\n\n",inet_ntoa(*((struct in_addr *)h->h_addr))); if ((fd=socket(AF_INET,SOCK_STREAM,0)) == INVALID_SOCKET) error("Client: socket not connected "); saddr.sin_family = AF_INET; saddr.sin_addr.s_addr = inet_addr(inet_ntoa(*((struct in_addr *)h->h_addr))); saddr.sin_port = htons(PORT); // request connection to server socket (remote machine) if (connect(fd, (LPSOCKADDR) &saddr, sizeof(saddr)) == SOCKET_ERROR) error("Client: connect "); if( recv(fd, buf, sizeof(buf), 0) == SOCKET_ERROR ) error("Client: receiving failure "); printf("Server echoed1 '%s' \n",buf); if( send(fd, MESHELO, strlen(MESHELO)+1, 0) == SOCKET_ERROR ) error("Server: sending failure "); if( recv(fd, buf, sizeof(buf), 0) == SOCKET_ERROR ) error("Client: receiving failure "); printf("Server echoed2 '%s' \n",buf); //---- if( send(fd, MESHELP, strlen(MESHELP)+1, 0) == SOCKET_ERROR ) error("Server: sending failure "); if( recv(fd, buf, sizeof(buf), 0) == SOCKET_ERROR ) error("Client: receiving failure "); printf("Server echoed3 '%s' \n",buf); if( send(fd, MESQUIT, strlen(MESQUIT)+1, 0) == SOCKET_ERROR ) error("Server: sending failure "); if( recv(fd, buf, sizeof(buf), 0) == SOCKET_ERROR ) error("Client: receiving failure "); printf("Server echoed4 '%s' \n",buf); //<<<<< //--- printf("Sending 'Connection Closing' command\n\n"); if (closesocket(fd) == SOCKET_ERROR) error("Client: closing socket "); }
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