X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ian/git?p=chiark-tcl.git;a=blobdiff_plain;f=base%2Fchiark-tcl.h;h=06c98fce518d12654e61912823671b0c2ce58034;hp=0f38890875e7ad304be3dda64f073fd6610a39d8;hb=9af88eb2e41e2b6a73643948e31262eee08c5400;hpb=743de63e7b3214a5abc748ec0fa90160b6983551

diff --git a/base/chiark-tcl.h b/base/chiark-tcl.h
index 0f38890..06c98fc 100644
--- a/base/chiark-tcl.h
+++ b/base/chiark-tcl.h
@@ -32,16 +32,18 @@
  *  hbytes pkcs5 pn|un VAR BLOCKSIZE             => worked?  (always 1 for p)
  *  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
  *
  *  hbytes hash ALG MESSAGE                      => hash
  *  hbytes hmac ALG MESSAGE KEY [MACLENGTH]      => mac
+ *  hbytes hash-prop PROPERTY ALG                => property value
  *
  *  ulong ul2int ULONG    => INT           can fail if >INT_MAX
  *  ulong int2ul INT      => ULONG         can fail if <0
  *  ulong mask A B                         => A & B
  *  ulong add A B                          => A + B  (mod 2^32)
  *  ulong subtract A B                     => A - B  (mod 2^32)
- *  ulong compare A B                      => 0/-1/1
+ *  ulong compare A B                      => 0  -1 (A<B)  +1 (A>B)
  *  ulong shift l|r ULONG BITS             fails if BITS >32
  *
  *  ulong ul2bitfields VALUE [SIZE TYPE [TYPE-ARG...] ...]  => 0/1
@@ -55,6 +57,27 @@
  *               uint VARNAME/VALUE         (VARNAME if ul2bitfields;
  *               ulong VARNAME/VALUE         VALUE if bitfields2ul)
  *
+ * Error codes
+ *
+ * HBYTES BLOCKCIPHER CRYPTFAIL CRYPT  block cipher mode failed somehow (!)
+ * HBYTES BLOCKCIPHER CRYPTFAIL MAC    HMAC failed somehow (!)
+ * HBYTES BLOCKCIPHER LENGTH           block cipher input has unsuitable length
+ * HBYTES BLOCKCIPHER PARAMS           key or iv not suitable
+ * HBYTES HMAC PARAMS                  key, input or output size not suitable
+ * 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 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
+ * SOCKADDR SYNTAX IPV4                bad IPv4 socket address &/or port
+ * SOCKADDR SYNTAX OTHER               bad socket addr, couldn't tell what kind
+ * ULONG BITCOUNT NEGATIVE             -ve bitcount specified where not allowed
+ * ULONG BITCOUNT OVERRUN              attempt to use more than 32 bits
+ * 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
+ *
  * Refs: HMAC: RFC2104
  */
 
@@ -153,7 +176,7 @@ typedef struct DgramSocket *DgramSockID;
 
 /* from hook.c */
 
-int staticerr(Tcl_Interp *ip, const char *m);
+int staticerr(Tcl_Interp *ip, const char *m, const char *ec);
 int posixerr(Tcl_Interp *ip, int errnoval, const char *m);
 void objfreeir(Tcl_Obj *o);
 int get_urandom(Tcl_Interp *ip, Byte *buffer, int l);
@@ -220,6 +243,11 @@ extern Tcl_ObjType blockcipherkey_type;
 
 /* from algtables.c */
 
+typedef struct {
+  const char *name;
+  int int_offset;
+} BlockCipherPropInfo, HashAlgPropInfo;
+
 typedef struct {
   const char *name;
   int hashsize, blocksize, statesize;