1 files changed, 252 insertions, 264 deletions

diff --git a/xserver/os/xdmauth.c b/xserver/os/xdmauth.c
index b8cbada18..28584d2e8 100644
--- a/xserver/os/xdmauth.c
+++ b/xserver/os/xdmauth.c
@@ -58,390 +58,380 @@ static Bool authFromXDMCP;
 
 /* XDM-AUTHENTICATION-1 */
 
-static XdmAuthKeyRec	privateKey;
+static XdmAuthKeyRec privateKey;
 static char XdmAuthenticationName[] = "XDM-AUTHENTICATION-1";
+
 #define XdmAuthenticationNameLen (sizeof XdmAuthenticationName - 1)
-static XdmAuthKeyRec	rho;
+static XdmAuthKeyRec rho;
 
-static Bool 
-XdmAuthenticationValidator (ARRAY8Ptr privateData, ARRAY8Ptr incomingData, 
-    xdmOpCode packet_type)
+static Bool
+XdmAuthenticationValidator(ARRAY8Ptr privateData, ARRAY8Ptr incomingData,
+                           xdmOpCode packet_type)
 {
-    XdmAuthKeyPtr	incoming;
+    XdmAuthKeyPtr incoming;
 
-    XdmcpUnwrap (incomingData->data, (unsigned char *)&privateKey,
-			      incomingData->data,incomingData->length);
+    XdmcpUnwrap(incomingData->data, (unsigned char *) &privateKey,
+                incomingData->data, incomingData->length);
     if (packet_type == ACCEPT) {
-    	if (incomingData->length != 8)
-	    return FALSE;
-    	incoming = (XdmAuthKeyPtr) incomingData->data;
-    	XdmcpDecrementKey (incoming);
-    	return XdmcpCompareKeys (incoming, &rho);
+        if (incomingData->length != 8)
+            return FALSE;
+        incoming = (XdmAuthKeyPtr) incomingData->data;
+        XdmcpDecrementKey(incoming);
+        return XdmcpCompareKeys(incoming, &rho);
     }
     return FALSE;
 }
 
 static Bool
-XdmAuthenticationGenerator (ARRAY8Ptr privateData, ARRAY8Ptr outgoingData, 
-    xdmOpCode packet_type)
+XdmAuthenticationGenerator(ARRAY8Ptr privateData, ARRAY8Ptr outgoingData,
+                           xdmOpCode packet_type)
 {
     outgoingData->length = 0;
     outgoingData->data = 0;
     if (packet_type == REQUEST) {
-	if (XdmcpAllocARRAY8 (outgoingData, 8))
-	    XdmcpWrap ((unsigned char *)&rho, (unsigned char *)&privateKey,
-		       outgoingData->data, 8);
+        if (XdmcpAllocARRAY8(outgoingData, 8))
+            XdmcpWrap((unsigned char *) &rho, (unsigned char *) &privateKey,
+                      outgoingData->data, 8);
     }
     return TRUE;
 }
 
 static Bool
-XdmAuthenticationAddAuth (int name_len, const char *name,
-    int data_len, char *data)
+XdmAuthenticationAddAuth(int name_len, const char *name,
+                         int data_len, char *data)
 {
-    Bool    ret;
-    XdmcpUnwrap ((unsigned char *)data, (unsigned char *)&privateKey,
-		 (unsigned char *)data, data_len);
+    Bool ret;
+
+    XdmcpUnwrap((unsigned char *) data, (unsigned char *) &privateKey,
+                (unsigned char *) data, data_len);
     authFromXDMCP = TRUE;
-    ret = AddAuthorization (name_len, name, data_len, data);
+    ret = AddAuthorization(name_len, name, data_len, data);
     authFromXDMCP = FALSE;
     return ret;
 }
 
-
 #define atox(c)	('0' <= c && c <= '9' ? c - '0' : \
 		 'a' <= c && c <= 'f' ? c - 'a' + 10 : \
 		 'A' <= c && c <= 'F' ? c - 'A' + 10 : -1)
 
 static int
-HexToBinary (const char *in, char *out, int len)
+HexToBinary(const char *in, char *out, int len)
 {
-    int	    top, bottom;
-
-    while (len > 0)
-    {
-	top = atox(in[0]);
-	if (top == -1)
-	    return 0;
-	bottom = atox(in[1]);
-	if (bottom == -1)
-	    return 0;
-	*out++ = (top << 4) | bottom;
-	in += 2;
-	len -= 2;
+    int top, bottom;
+
+    while (len > 0) {
+        top = atox(in[0]);
+        if (top == -1)
+            return 0;
+        bottom = atox(in[1]);
+        if (bottom == -1)
+            return 0;
+        *out++ = (top << 4) | bottom;
+        in += 2;
+        len -= 2;
     }
     if (len)
-	return 0;
+        return 0;
     *out++ = '\0';
     return 1;
 }
 
 void
-XdmAuthenticationInit (const char *cookie, int cookie_len)
+XdmAuthenticationInit(const char *cookie, int cookie_len)
 {
     memset(privateKey.data, 0, 8);
-    if (!strncmp (cookie, "0x", 2) || !strncmp (cookie, "0X", 2))
-    {
-	if (cookie_len > 2 + 2 * 8)
-	    cookie_len = 2 + 2 * 8;
-	HexToBinary (cookie + 2, (char *)privateKey.data, cookie_len - 2);
+    if (!strncmp(cookie, "0x", 2) || !strncmp(cookie, "0X", 2)) {
+        if (cookie_len > 2 + 2 * 8)
+            cookie_len = 2 + 2 * 8;
+        HexToBinary(cookie + 2, (char *) privateKey.data, cookie_len - 2);
     }
-    else
-    {
-    	if (cookie_len > 7)
-	    cookie_len = 7;
-    	memmove (privateKey.data + 1, cookie, cookie_len);
+    else {
+        if (cookie_len > 7)
+            cookie_len = 7;
+        memmove(privateKey.data + 1, cookie, cookie_len);
     }
-    XdmcpGenerateKey (&rho);
-    XdmcpRegisterAuthentication (XdmAuthenticationName, XdmAuthenticationNameLen,
-				 (char *)&rho,
-				 sizeof (rho),
-				 (ValidatorFunc)XdmAuthenticationValidator,
-				 (GeneratorFunc)XdmAuthenticationGenerator,
-				 (AddAuthorFunc)XdmAuthenticationAddAuth);
+    XdmcpGenerateKey(&rho);
+    XdmcpRegisterAuthentication(XdmAuthenticationName, XdmAuthenticationNameLen,
+                                (char *) &rho,
+                                sizeof(rho),
+                                (ValidatorFunc) XdmAuthenticationValidator,
+                                (GeneratorFunc) XdmAuthenticationGenerator,
+                                (AddAuthorFunc) XdmAuthenticationAddAuth);
 }
 
-#endif /* XDMCP */
+#endif                          /* XDMCP */
 
 /* XDM-AUTHORIZATION-1 */
 typedef struct _XdmAuthorization {
-    struct _XdmAuthorization	*next;
-    XdmAuthKeyRec		rho;
-    XdmAuthKeyRec		key;
-    XID				id;
+    struct _XdmAuthorization *next;
+    XdmAuthKeyRec rho;
+    XdmAuthKeyRec key;
+    XID id;
 } XdmAuthorizationRec, *XdmAuthorizationPtr;
 
 static XdmAuthorizationPtr xdmAuth;
 
 typedef struct _XdmClientAuth {
-    struct _XdmClientAuth   *next;
-    XdmAuthKeyRec	    rho;
-    char		    client[6];
-    long		    time;
+    struct _XdmClientAuth *next;
+    XdmAuthKeyRec rho;
+    char client[6];
+    long time;
 } XdmClientAuthRec, *XdmClientAuthPtr;
 
-static XdmClientAuthPtr    xdmClients;
-static long	    clockOffset;
-static Bool	    gotClock;
+static XdmClientAuthPtr xdmClients;
+static long clockOffset;
+static Bool gotClock;
 
 #define TwentyMinutes	(20 * 60)
 #define TwentyFiveMinutes (25 * 60)
 
 static Bool
-XdmClientAuthCompare (const XdmClientAuthPtr a, const XdmClientAuthPtr b)
+XdmClientAuthCompare(const XdmClientAuthPtr a, const XdmClientAuthPtr b)
 {
-    int	i;
+    int i;
 
-    if (!XdmcpCompareKeys (&a->rho, &b->rho))
-	return FALSE;
+    if (!XdmcpCompareKeys(&a->rho, &b->rho))
+        return FALSE;
     for (i = 0; i < 6; i++)
-	if (a->client[i] != b->client[i])
-	    return FALSE;
+        if (a->client[i] != b->client[i])
+            return FALSE;
     return a->time == b->time;
 }
 
 static void
-XdmClientAuthDecode (const unsigned char *plain, XdmClientAuthPtr auth)
+XdmClientAuthDecode(const unsigned char *plain, XdmClientAuthPtr auth)
 {
-    int	    i, j;
+    int i, j;
 
     j = 0;
-    for (i = 0; i < 8; i++)
-    {
-	auth->rho.data[i] = plain[j];
-	++j;
+    for (i = 0; i < 8; i++) {
+        auth->rho.data[i] = plain[j];
+        ++j;
     }
-    for (i = 0; i < 6; i++)
-    {
-	auth->client[i] = plain[j];
-	++j;
+    for (i = 0; i < 6; i++) {
+        auth->client[i] = plain[j];
+        ++j;
     }
     auth->time = 0;
-    for (i = 0; i < 4; i++)
-    {
-	auth->time |= plain[j] << ((3 - i) << 3);
-	j++;
+    for (i = 0; i < 4; i++) {
+        auth->time |= plain[j] << ((3 - i) << 3);
+        j++;
     }
 }
 
 static void
-XdmClientAuthTimeout (long now)
+XdmClientAuthTimeout(long now)
 {
-    XdmClientAuthPtr	client, next, prev;
+    XdmClientAuthPtr client, next, prev;
 
     prev = 0;
-    for (client = xdmClients; client; client=next)
-    {
-	next = client->next;
-	if (abs (now - client->time) > TwentyFiveMinutes)
-	{
-	    if (prev)
-		prev->next = next;
-	    else
-		xdmClients = next;
-	    free(client);
-	}
-	else
-	    prev = client;
+    for (client = xdmClients; client; client = next) {
+        next = client->next;
+        if (abs(now - client->time) > TwentyFiveMinutes) {
+            if (prev)
+                prev->next = next;
+            else
+                xdmClients = next;
+            free(client);
+        }
+        else
+            prev = client;
     }
 }
 
 static XdmClientAuthPtr
-XdmAuthorizationValidate (unsigned char *plain, int length, 
-    XdmAuthKeyPtr rho, ClientPtr xclient, char **reason)
+XdmAuthorizationValidate(unsigned char *plain, int length,
+                         XdmAuthKeyPtr rho, ClientPtr xclient,
+                         const char **reason)
 {
-    XdmClientAuthPtr	client, existing;
-    long		now;
-    int			i;
+    XdmClientAuthPtr client, existing;
+    long now;
+    int i;
 
     if (length != (192 / 8)) {
-	if (reason)
-	    *reason = "Bad XDM authorization key length";
-	return NULL;
+        if (reason)
+            *reason = "Bad XDM authorization key length";
+        return NULL;
     }
-    client = malloc(sizeof (XdmClientAuthRec));
+    client = malloc(sizeof(XdmClientAuthRec));
     if (!client)
-	return NULL;
-    XdmClientAuthDecode (plain, client);
-    if (!XdmcpCompareKeys (&client->rho, rho))
-    {
-	free(client);
-	if (reason)
-	    *reason = "Invalid XDM-AUTHORIZATION-1 key (failed key comparison)";
-	return NULL;
+        return NULL;
+    XdmClientAuthDecode(plain, client);
+    if (!XdmcpCompareKeys(&client->rho, rho)) {
+        free(client);
+        if (reason)
+            *reason = "Invalid XDM-AUTHORIZATION-1 key (failed key comparison)";
+        return NULL;
     }
     for (i = 18; i < 24; i++)
-	if (plain[i] != 0) {
-	    free(client);
-	    if (reason)
-		*reason = "Invalid XDM-AUTHORIZATION-1 key (failed NULL check)";
-	    return NULL;
-	}
+        if (plain[i] != 0) {
+            free(client);
+            if (reason)
+                *reason = "Invalid XDM-AUTHORIZATION-1 key (failed NULL check)";
+            return NULL;
+        }
     if (xclient) {
-	int family, addr_len;
-	Xtransaddr *addr;
+        int family, addr_len;
+        Xtransaddr *addr;
 
-	if (_XSERVTransGetPeerAddr(((OsCommPtr)xclient->osPrivate)->trans_conn,
-				   &family, &addr_len, &addr) == 0
-	    && _XSERVTransConvertAddress(&family, &addr_len, &addr) == 0) {
+        if (_XSERVTransGetPeerAddr(((OsCommPtr) xclient->osPrivate)->trans_conn,
+                                   &family, &addr_len, &addr) == 0
+            && _XSERVTransConvertAddress(&family, &addr_len, &addr) == 0) {
 #if defined(TCPCONN) || defined(STREAMSCONN)
-	    if (family == FamilyInternet &&
-		memcmp((char *)addr, client->client, 4) != 0) {
-		free(client);
-		free(addr);
-		if (reason)
-		    *reason = "Invalid XDM-AUTHORIZATION-1 key (failed address comparison)";
-		return NULL;
-
-	    }
+            if (family == FamilyInternet &&
+                memcmp((char *) addr, client->client, 4) != 0) {
+                free(client);
+                free(addr);
+                if (reason)
+                    *reason =
+                        "Invalid XDM-AUTHORIZATION-1 key (failed address comparison)";
+                return NULL;
+
+            }
 #endif
-	    free(addr);
-	}
+            free(addr);
+        }
     }
     now = time(0);
-    if (!gotClock)
-    {
-	clockOffset = client->time - now;
-	gotClock = TRUE;
+    if (!gotClock) {
+        clockOffset = client->time - now;
+        gotClock = TRUE;
     }
     now += clockOffset;
-    XdmClientAuthTimeout (now);
-    if (abs (client->time - now) > TwentyMinutes)
-    {
-	free(client);
-	if (reason)
-	    *reason = "Excessive XDM-AUTHORIZATION-1 time offset";
-	return NULL;
+    XdmClientAuthTimeout(now);
+    if (abs(client->time - now) > TwentyMinutes) {
+        free(client);
+        if (reason)
+            *reason = "Excessive XDM-AUTHORIZATION-1 time offset";
+        return NULL;
     }
-    for (existing = xdmClients; existing; existing=existing->next)
-    {
-	if (XdmClientAuthCompare (existing, client))
-	{
-	    free(client);
-	    if (reason)
-		*reason = "XDM authorization key matches an existing client!";
-	    return NULL;
-	}
+    for (existing = xdmClients; existing; existing = existing->next) {
+        if (XdmClientAuthCompare(existing, client)) {
+            free(client);
+            if (reason)
+                *reason = "XDM authorization key matches an existing client!";
+            return NULL;
+        }
     }
     return client;
 }
 
 int
-XdmAddCookie (unsigned short data_length, const char *data, XID id)
+XdmAddCookie(unsigned short data_length, const char *data, XID id)
 {
-    XdmAuthorizationPtr	new;
-    unsigned char	*rho_bits, *key_bits;
+    XdmAuthorizationPtr new;
+    unsigned char *rho_bits, *key_bits;
 
-    switch (data_length)
-    {
-    case 16:		    /* auth from files is 16 bytes long */
+    switch (data_length) {
+    case 16:                   /* auth from files is 16 bytes long */
 #ifdef XDMCP
-	if (authFromXDMCP)
-	{
-	    /* R5 xdm sent bogus authorization data in the accept packet,
-	     * but we can recover */
-	    rho_bits = rho.data;
-	    key_bits = (unsigned char *) data;
-	    key_bits[0] = '\0';
-	}
-	else
+        if (authFromXDMCP) {
+            /* R5 xdm sent bogus authorization data in the accept packet,
+             * but we can recover */
+            rho_bits = rho.data;
+            key_bits = (unsigned char *) data;
+            key_bits[0] = '\0';
+        }
+        else
 #endif
-	{
-	    rho_bits = (unsigned char *) data;
-	    key_bits = (unsigned char *) (data + 8);
-	}
-	break;
+        {
+            rho_bits = (unsigned char *) data;
+            key_bits = (unsigned char *) (data + 8);
+        }
+        break;
 #ifdef XDMCP
-    case 8:		    /* auth from XDMCP is 8 bytes long */
-	rho_bits = rho.data;
-	key_bits = (unsigned char *) data;
-	break;
+    case 8:                    /* auth from XDMCP is 8 bytes long */
+        rho_bits = rho.data;
+        key_bits = (unsigned char *) data;
+        break;
 #endif
     default:
-	return 0;
+        return 0;
     }
     /* the first octet of the key must be zero */
     if (key_bits[0] != '\0')
-	return 0;
-    new = malloc(sizeof (XdmAuthorizationRec));
+        return 0;
+    new = malloc(sizeof(XdmAuthorizationRec));
     if (!new)
-	return 0;
+        return 0;
     new->next = xdmAuth;
     xdmAuth = new;
-    memmove (new->key.data, key_bits, (int) 8);
-    memmove (new->rho.data, rho_bits, (int) 8);
+    memmove(new->key.data, key_bits, (int) 8);
+    memmove(new->rho.data, rho_bits, (int) 8);
     new->id = id;
     return 1;
 }
 
 XID
-XdmCheckCookie (unsigned short cookie_length, const char *cookie,
-    ClientPtr xclient, char **reason)
+XdmCheckCookie(unsigned short cookie_length, const char *cookie,
+               ClientPtr xclient, const char **reason)
 {
-    XdmAuthorizationPtr	auth;
-    XdmClientAuthPtr	client;
-    unsigned char	*plain;
+    XdmAuthorizationPtr auth;
+    XdmClientAuthPtr client;
+    unsigned char *plain;
 
     /* Auth packets must be a multiple of 8 bytes long */
     if (cookie_length & 7)
-	return (XID) -1;
+        return (XID) -1;
     plain = malloc(cookie_length);
     if (!plain)
-	return (XID) -1;
-    for (auth = xdmAuth; auth; auth=auth->next) {
-	XdmcpUnwrap ((unsigned char *)cookie, (unsigned char *)&auth->key, plain, cookie_length);
-	if ((client = XdmAuthorizationValidate (plain, cookie_length, &auth->rho, xclient, reason)) != NULL)
-	{
-	    client->next = xdmClients;
-	    xdmClients = client;
-	    free(plain);
-	    return auth->id;
-	}
+        return (XID) -1;
+    for (auth = xdmAuth; auth; auth = auth->next) {
+        XdmcpUnwrap((unsigned char *) cookie, (unsigned char *) &auth->key,
+                    plain, cookie_length);
+        if ((client =
+             XdmAuthorizationValidate(plain, cookie_length, &auth->rho, xclient,
+                                      reason)) != NULL) {
+            client->next = xdmClients;
+            xdmClients = client;
+            free(plain);
+            return auth->id;
+        }
     }
     free(plain);
     return (XID) -1;
 }
 
 int
-XdmResetCookie (void)
+XdmResetCookie(void)
 {
-    XdmAuthorizationPtr	auth, next_auth;
-    XdmClientAuthPtr	client, next_client;
+    XdmAuthorizationPtr auth, next_auth;
+    XdmClientAuthPtr client, next_client;
 
-    for (auth = xdmAuth; auth; auth=next_auth)
-    {
-	next_auth = auth->next;
-	free(auth);
+    for (auth = xdmAuth; auth; auth = next_auth) {
+        next_auth = auth->next;
+        free(auth);
     }
     xdmAuth = 0;
-    for (client = xdmClients; client; client=next_client)
-    {
-	next_client = client->next;
-	free(client);
+    for (client = xdmClients; client; client = next_client) {
+        next_client = client->next;
+        free(client);
     }
     xdmClients = (XdmClientAuthPtr) 0;
     return 1;
 }
 
 XID
-XdmToID (unsigned short cookie_length, char *cookie)
+XdmToID(unsigned short cookie_length, char *cookie)
 {
-    XdmAuthorizationPtr	auth;
-    XdmClientAuthPtr	client;
-    unsigned char	*plain;
+    XdmAuthorizationPtr auth;
+    XdmClientAuthPtr client;
+    unsigned char *plain;
 
     plain = malloc(cookie_length);
     if (!plain)
-	return (XID) -1;
-    for (auth = xdmAuth; auth; auth=auth->next) {
-	XdmcpUnwrap ((unsigned char *)cookie, (unsigned char *)&auth->key, plain, cookie_length);
-	if ((client = XdmAuthorizationValidate (plain, cookie_length, &auth->rho, NULL, NULL)) != NULL)
-	{
-	    free(client);
-	    free(cookie);
-	    free(plain);
-	    return auth->id;
-	}
+        return (XID) -1;
+    for (auth = xdmAuth; auth; auth = auth->next) {
+        XdmcpUnwrap((unsigned char *) cookie, (unsigned char *) &auth->key,
+                    plain, cookie_length);
+        if ((client =
+             XdmAuthorizationValidate(plain, cookie_length, &auth->rho, NULL,
+                                      NULL)) != NULL) {
+            free(client);
+            free(cookie);
+            free(plain);
+            return auth->id;
+        }
     }
     free(cookie);
     free(plain);
@@ -449,49 +439,47 @@ XdmToID (unsigned short cookie_length, char *cookie)
 }
 
 int
-XdmFromID (XID id, unsigned short *data_lenp, char **datap)
+XdmFromID(XID id, unsigned short *data_lenp, char **datap)
 {
-    XdmAuthorizationPtr	auth;
-
-    for (auth = xdmAuth; auth; auth=auth->next) {
-	if (id == auth->id) {
-	    *data_lenp = 16;
-	    *datap = (char *) &auth->rho;
-	    return 1;
-	}
+    XdmAuthorizationPtr auth;
+
+    for (auth = xdmAuth; auth; auth = auth->next) {
+        if (id == auth->id) {
+            *data_lenp = 16;
+            *datap = (char *) &auth->rho;
+            return 1;
+        }
     }
     return 0;
 }
 
 int
-XdmRemoveCookie (unsigned short data_length, const char *data)
+XdmRemoveCookie(unsigned short data_length, const char *data)
 {
-    XdmAuthorizationPtr	auth;
-    XdmAuthKeyPtr	key_bits, rho_bits;
+    XdmAuthorizationPtr auth;
+    XdmAuthKeyPtr key_bits, rho_bits;
 
-    switch (data_length)
-    {
+    switch (data_length) {
     case 16:
-	rho_bits = (XdmAuthKeyPtr) data;
-	key_bits = (XdmAuthKeyPtr) (data + 8);
-	break;
+        rho_bits = (XdmAuthKeyPtr) data;
+        key_bits = (XdmAuthKeyPtr) (data + 8);
+        break;
 #ifdef XDMCP
     case 8:
-	rho_bits = &rho;
-	key_bits = (XdmAuthKeyPtr) data;
-	break;
+        rho_bits = &rho;
+        key_bits = (XdmAuthKeyPtr) data;
+        break;
 #endif
     default:
-	return 0;
+        return 0;
     }
-    for (auth = xdmAuth; auth; auth=auth->next) {
-	if (XdmcpCompareKeys (rho_bits, &auth->rho) &&
-	    XdmcpCompareKeys (key_bits, &auth->key))
- 	{
-	    xdmAuth = auth->next;
-	    free(auth);
-	    return 1;
-	}
+    for (auth = xdmAuth; auth; auth = auth->next) {
+        if (XdmcpCompareKeys(rho_bits, &auth->rho) &&
+            XdmcpCompareKeys(key_bits, &auth->key)) {
+            xdmAuth = auth->next;
+            free(auth);
+            return 1;
+        }
     }
     return 0;
 }