document some undocumented hbytes ops

[chiark-tcl.git] / base / chiark-tcl.h

diff --git a/base/chiark-tcl.h b/base/chiark-tcl.h
index 06c98fce518d12654e61912823671b0c2ce58034..10141825f3f3d1f35fd052014e8e7436edba378c 100644 (file)
--- a/base/chiark-tcl.h
+++ b/base/chiark-tcl.h
@@ -17,6 +17,9 @@
  *  hbytes overwrite VAR START VALUE
  *  hbytes trimleft VAR                         removes any leading 0 octets
  *  hbytes repeat VALUE COUNT                    => COUNT copies of VALUE
+ *  hbytes zeroes COUNT                          => COUNT zero bytes
+ *  hbytes random COUNT                          => COUNT random bytes
+ *  hbytes xor VAR VALUE                         $VAR (+)= VALUE
  *
  *  hbytes ushort2h LONG           => LONG must be <2^16, returns as hex
  *  hbytes h2ushort HEX            => |HEX| must be 2 bytes, returns as ulong
@@ -28,8 +31,13 @@
  *          +1   A is B plus a nonempty suffix (ie, A has B as a prefix)
  *          +2   A is lexically later than B and does not have B as a prefix
  *
- *  hbytes pkcs5 pa|ua VAR ALG                   => worked?  (always 1 for p)
- *  hbytes pkcs5 pn|un VAR BLOCKSIZE             => worked?  (always 1 for p)
+ *  hbytes pad pa|ua VAR ALG METH [METHARGS]       => worked? (always 1 for p)
+ *  hbytes pad pn|un VAR BS METH [METHARGS]        => worked? (always 1 for p)
+ *  hbytes pad pa|pn VAR ALG|BS pkcs5              => 1
+ *  hbytes pad ua|un VAR ALG|BS pkcs5              => worked?
+ *  hbytes pad pa|pn VAR ALG|BS rfc2406 NXTHDR     => 1
+ *  hbytes pad ua|un VAR ALG|BS rfc2406 NXTHDRVAR  => worked?
+ *
  *  hbytes blockcipher d|e VAR ALG KEY MODE [IV] => IV
  *  hbytes blockcipher mac MSG ALG KEY MODE IV   => final block
  *  hbytes blockcipher prop PROPERTY ALG         => property value
@@ -67,6 +75,7 @@
  * HBYTES LENGTH OVERRUN               block too long
  * HBYTES LENGTH RANGE                 input length or offset is -ve or silly
  * HBYTES LENGTH UNDERRUN              block too short (or offset too big)
+ * HBYTES LENGTH MISMATCH              when blocks must be exactly same length
  * HBYTES SYNTAX                       supposed hex block had wrong syntax
  * HBYTES VALUE OVERFLOW               value to be conv'd to hex too big/long
  * SOCKADDR AFUNIX LENGTH              path for AF_UNIX socket too long
@@ -77,6 +86,8 @@
  * ULONG BITCOUNT UNDERRUN             bitfields add up to less than 32
  * ULONG VALUE NEGATIVE                attempt convert -ve integers to ulong
  * ULONG VALUE OVERFLOW                converted value does not fit in result
+ * TUNTAP IFNAME LENGTH                tun/tap interface name too long
+ * TUNTAP MTU OVERRUN                  tun/tap mtu limited to 2^16 bytes
  *
  * Refs: HMAC: RFC2104
  */
@@ -169,10 +180,40 @@ int sockaddr_len(const SockAddr_Value*);
 const struct sockaddr *sockaddr_addr(const SockAddr_Value*);
 void sockaddr_free(const SockAddr_Value*);
 
+/* from scriptinv.c */
+
+typedef struct { /* semi-opaque - read only, and then only where commented */
+  Tcl_Interp *ip; /* valid, non-0 and useable if set */
+  Tcl_Obj *obj; /* non-0 iff set (but only test for 0/non-0) */
+  int llength;
+} ScriptToInvoke;
+
+void scriptinv_init(ScriptToInvoke *si);
+int scriptinv_set(ScriptToInvoke *si, Tcl_Interp *ip, Tcl_Obj *newscript);
+void scriptinv_cancel(ScriptToInvoke *si); /* then don't invoke */
+  /* no separate free function - just cancel */
+
+void scriptinv_invoke(ScriptToInvoke *si, int argc, Tcl_Obj **argv);
+
+/* from idtable.c */
+
+typedef struct {
+  const char *const prefix;
+  int n;
+  void **a;
+} IdDataTable;
+
+extern Tcl_ObjType tabledataid_nearlytype;
+int tabledataid_parse(Tcl_Interp *ip, Tcl_Obj *o, IdDataTable *tab);
+
 /* from dgram.c */
 
-extern Tcl_ObjType dgramsockid_type;
-typedef struct DgramSocket *DgramSockID;
+extern IdDataTable dgram_socks;
+int newfdposixerr(Tcl_Interp *ip, int fd, const char *m);
+
+/* from tuntap.c */
+
+extern IdDataTable tuntap_socks;
 
 /* from hook.c */
 
@@ -237,7 +278,7 @@ void memxor(Byte *dest, const Byte *src, int l);
 typedef struct {
   const char *name;
   int pad, use_algname;
-} PadMethod;
+} PadOp;
 
 extern Tcl_ObjType blockcipherkey_type;
 
@@ -269,7 +310,6 @@ typedef struct {
 typedef struct {
   const char *name;
   int blocksize, schedule_size, key_min, key_max;
-  void (*byteswap)(void *block);
   BlockCipherPerDirectionInfo encrypt, decrypt;
 } BlockCipherAlgInfo;