static Bool
AuthenticateVNC(void)
{
CARD32 authScheme, authResult;
CARD8 challenge[CHALLENGESIZE];
char *passwd;
char buffer[64];
char* cstatus;
int len;
fprintf(stderr, "Performing standard VNC authentication\n");
if (!ReadFromRFBServer((char *)challenge, CHALLENGESIZE))
return False;
if (appData.passwordFile) {
passwd = vncDecryptPasswdFromFile(appData.passwordFile);
if (!passwd) {
fprintf(stderr, "Cannot read valid password from file \"%s\"\n",
appData.passwordFile);
return False;
}
} else if (appData.autoPass) {
passwd = buffer;
cstatus = fgets(buffer, sizeof buffer, stdin);
if (cstatus == NULL)
buffer[0] = '\0';
else
{
len = strlen(buffer);
if (len > 0 && buffer[len - 1] == '\n')
buffer[len - 1] = '\0';
}
} else if (appData.passwordDialog) {
passwd = DoPasswordDialog();
} else {
passwd = getpass("Password: "******"Reading password failed\n");
return False;
}
if (strlen(passwd) > 8) {
passwd[8] = '\0';
}
vncEncryptBytes(challenge, passwd);
/* Lose the password from memory */
memset(passwd, '\0', strlen(passwd));
if (!WriteExact(rfbsock, (char *)challenge, CHALLENGESIZE))
return False;
if (!ReadFromRFBServer((char *)&authResult, 4))
return False;
authResult = Swap32IfLE(authResult);
switch (authResult) {
case rfbVncAuthOK:
fprintf(stderr, "VNC authentication succeeded\n");
break;
case rfbVncAuthFailed:
fprintf(stderr, "VNC authentication failed\n");
return False;
case rfbVncAuthTooMany:
fprintf(stderr, "VNC authentication failed - too many tries\n");
return False;
default:
fprintf(stderr, "Unknown VNC authentication result: %d\n",
(int)authResult);
return False;
}
return True;
}
static Bool
AuthenticateUnixLogin(void)
{
CARD32 loginLen, passwdLen, authResult;
char *login;
char *passwd;
struct passwd *ps;
fprintf(stderr, "Performing Unix login-style authentication\n");
if (appData.userLogin) {
login = appData.userLogin;
} else {
ps = getpwuid(getuid());
login = ps->pw_name;
}
fprintf(stderr, "Using user name \"%s\"\n", login);
if (appData.passwordDialog) {
passwd = DoPasswordDialog();
} else {
passwd = getpass("Password: "******"Reading password failed\n");
return False;
}
loginLen = Swap32IfLE((CARD32)strlen(login));
passwdLen = Swap32IfLE((CARD32)strlen(passwd));
if (!WriteExact(rfbsock, (char *)&loginLen, sizeof(loginLen)) ||
!WriteExact(rfbsock, (char *)&passwdLen, sizeof(passwdLen)))
return False;
if (!WriteExact(rfbsock, login, strlen(login)) ||
!WriteExact(rfbsock, passwd, strlen(passwd)))
return False;
/* Lose the password from memory */
memset(passwd, '\0', strlen(passwd));
if (!ReadFromRFBServer((char *)&authResult, sizeof(authResult)))
return False;
authResult = Swap32IfLE(authResult);
switch (authResult) {
case rfbVncAuthOK:
fprintf(stderr, "Authentication succeeded\n");
break;
case rfbVncAuthFailed:
fprintf(stderr, "Authentication failed\n");
return False;
case rfbVncAuthTooMany:
fprintf(stderr, "Authentication failed - too many tries\n");
return False;
default:
fprintf(stderr, "Unknown authentication result: %d\n",
(int)authResult);
return False;
}
return True;
}
static Bool
AuthenticateVNC(void)
{
CARD32 authScheme;
CARD8 challenge[CHALLENGESIZE];
char *passwd;
char buffer[64];
char* cstatus;
int len;
if (!appData.ffInfo) {
fprintf(stderr, "Performing standard VNC authentication\n");
}
if (!ReadFromRFBServer((char *)challenge, CHALLENGESIZE))
return False;
if (appData.play || appData.movie) {
passwd = strdup ("dummy");
return ReadAuthenticationResult();
}
if (appData.passwordFile) {
passwd = vncDecryptPasswdFromFile(appData.passwordFile);
if (!passwd) {
fprintf(stderr, "Cannot read valid password from file \"%s\"\n",
appData.passwordFile);
return False;
}
} else if (appData.autoPass) {
passwd = buffer;
cstatus = fgets(buffer, sizeof buffer, stdin);
if (cstatus == NULL)
buffer[0] = '\0';
else
{
len = strlen(buffer);
if (len > 0 && buffer[len - 1] == '\n')
buffer[len - 1] = '\0';
}
} else if (appData.passwordDialog) {
passwd = DoPasswordDialog();
} else {
passwd = getpass("Password: "******"Reading password failed\n");
return False;
}
if (strlen(passwd) > 8) {
passwd[8] = '\0';
}
vncEncryptBytes(challenge, passwd);
/* Lose the password from memory */
memset(passwd, '\0', strlen(passwd));
if (!WriteExact(rfbsock, (char *)challenge, CHALLENGESIZE))
return False;
return ReadAuthenticationResult();
}
