algorithms.c (AEADAAD.copy): Propagate the hashed length to the copy.

[catacomb-python] / buffer.c

diff --git a/buffer.c b/buffer.c
index 6569516..5b7bb64 100644 (file)
--- a/buffer.c
+++ b/buffer.c
@@ -53,11 +53,11 @@ static PyObject *buferr;
 static PyObject *rbuf_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
 {
   char *p, *q;
-  int n;
+  Py_ssize_t n;
   buf_pyobj *me = 0;
-  static char *kwlist[] = { "data", 0 };
+  static const char *const kwlist[] = { "data", 0 };
 
-  if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#:new", kwlist, &p, &n))
+  if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#:new", KWLIST, &p, &n))
     goto end;
   q = xmalloc(n);
   memcpy(q, p, n);
@@ -112,7 +112,8 @@ end:
     uint##n x;                                                         \
     if (!PyArg_ParseTuple(arg, ":getu" #w)) goto end;                  \
     if (buf_getu##w(BUF_B(me), &x)) BUFERR();                          \
-    return (getulong(x));                                              \
+    if (MASK##W <= ULONG_MAX) return (getulong(x));                    \
+    else { kludge64 y; ASSIGN64(y, x); return (getk64(y)); }           \
   end:                                                                 \
     return (0);                                                                \
   }
@@ -171,9 +172,9 @@ end:
 static PyObject *rbmeth_getecpt(PyObject *me, PyObject *arg, PyObject *kw)
 {
   PyObject *cobj = Py_None;
-  static char *kwlist[] = { "curve", 0 };
+  static const char *const kwlist[] = { "curve", 0 };
   ec pt = EC_INIT;
-  if (!PyArg_ParseTupleAndKeywords(arg, kw, "|O:getecpt", kwlist, &cobj))
+  if (!PyArg_ParseTupleAndKeywords(arg, kw, "|O:getecpt", KWLIST, &cobj))
     goto end;
   if (cobj == Py_None) cobj = (PyObject *)ecpt_pytype;
   if (!PyType_Check(cobj) ||
@@ -261,14 +262,14 @@ static PyMethodDef rbuf_pymethods[] = {
     METH(getu##w, "RBUF.getu" #w "() -> INT")
   DOUINTCONV(RBMETH_DECL_GETU_)
 #define RBMETH_DECL_GETBLK_(n, W, w)                                   \
-    METH(getblk##w, "RBUF.getblk" #w "() -> INT")
+    METH(getblk##w, "RBUF.getblk" #w "() -> BYTES")
   BUF_DOSUFFIXES(RBMETH_DECL_GETBLK_)
 #define RBMETH_DECL_GETBUF_(n, W, w)                                   \
-    METH(getbuf##w, "RBUF.getbuf" #w "() -> INT")
+    METH(getbuf##w, "RBUF.getbuf" #w "() -> RBUF'")
   BUF_DOSUFFIXES(RBMETH_DECL_GETBUF_)
   METH (getmp,                 "RBUF.getmp() -> X")
   METH (getgf,                 "RBUF.getgf() -> X")
-  KWMETH(getecpt,              "RBUF.getecpt(curve = None) -> P")
+  KWMETH(getecpt,              "RBUF.getecpt([curve = None]) -> P")
   METH (getecptraw,            "RBUF.getecptraw(CURVE) -> P")
   METH (getge,                 "RBUF.getge(GROUP) -> X")
   METH (getgeraw,              "RBUF.getgeraw(GROUP) -> X")
@@ -308,7 +309,7 @@ static PyTypeObject rbuf_pytype_skel = {
     Py_TPFLAGS_BASETYPE,
 
   /* @tp_doc@ */
-  "A read buffer.",
+"ReadBuffer(STR): a read buffer.",
 
   0,                                   /* @tp_traverse@ */
   0,                                   /* @tp_clear@ */
@@ -354,9 +355,9 @@ static PyObject *wbuf_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
   char *p;
   size_t n = 64;
   buf_pyobj *me = 0;
-  static char *kwlist[] = { "size", 0 };
+  static const char *const kwlist[] = { "size", 0 };
 
-  if (!PyArg_ParseTupleAndKeywords(arg, kw, "|O&:new", kwlist,
+  if (!PyArg_ParseTupleAndKeywords(arg, kw, "|O&:new", KWLIST,
                                   convszt, &n))
     goto end;
   me = (buf_pyobj *)ty->tp_alloc(ty, 0);
@@ -387,10 +388,10 @@ static PyObject *wbmeth_zero(PyObject *me, PyObject *arg)
 static PyObject *wbmeth_put(PyObject *me, PyObject *arg)
 {
   void *p;
-  int n;
+  Py_ssize_t n;
   if (!PyArg_ParseTuple(arg, "s#:put", &p, &n)) return (0);
   ensure(me, n);
-  buf_put(BUF_B(me), p, n); assert(BOK(BUF_B(m)));
+  buf_put(BUF_B(me), p, n); assert(BOK(BUF_B(me)));
   RETURN_ME;
 }
 
@@ -405,16 +406,20 @@ static PyObject *wbmeth_put(PyObject *me, PyObject *arg)
   }
 DOUINTCONV(WBMETH_PUTU_)
 
+#define MASKz 0
 #define SZ_z 1
 #define WBMETH_PUTBLK_(n, W, w)                                                \
   static PyObject *wbmeth_putblk##w(PyObject *me, PyObject *arg)       \
   {                                                                    \
     char *p;                                                           \
-    int sz;                                                            \
-    if (!PyArg_ParseTuple(arg, "s#:putblk" #w, &p, &sz)) return (0);   \
+    Py_ssize_t sz;                                                     \
+    if (!PyArg_ParseTuple(arg, "s#:putblk" #w, &p, &sz)) goto end;     \
+    if (MASK##W && sz > MASK##W) VALERR("too large");                  \
     ensure(me, sz + SZ_##n);                                           \
     buf_putmem##w(BUF_B(me), p, sz); assert(BOK(BUF_B(me)));           \
     RETURN_ME;                                                         \
+  end:                                                                 \
+    return (0);                                                                \
   }
 BUF_DOSUFFIXES(WBMETH_PUTBLK_)
 
@@ -441,8 +446,7 @@ static PyObject *wbmeth_putecpt(PyObject *me, PyObject *arg)
 {
   ec pt = EC_INIT;
   if (!PyArg_ParseTuple(arg, "O&:putecpt", convecpt, &pt)) return (0);
-  if (EC_ATINF(&pt)) ensure(me, 2);
-  else ensure(me, 4 + mp_octets(pt.x) + mp_octets(pt.y));
+  ensure(me, EC_ATINF(&pt) ? 2 : 6 + mp_octets(pt.x) + mp_octets(pt.y));
   buf_putec(BUF_B(me), &pt); assert(BOK(BUF_B(me)));
   EC_DESTROY(&pt);
   RETURN_ME;
@@ -482,9 +486,13 @@ static PyObject *wbmeth_putgeraw(PyObject *me, PyObject *arg)
 static PyObject *wbget_size(PyObject *me, void *hunoz)
   { return (PyInt_FromLong(BLEN(BUF_B(me)))); }
 
+static PyObject *wbget_contents(PyObject *me, void *hunoz)
+  { return (bytestring_pywrap(BBASE(BUF_B(me)), BLEN(BUF_B(me)))); }
+
 static PyGetSetDef wbuf_pygetset[] = {
 #define GETSETNAME(op, name) wb##op##_##name
   GET  (size,                  "WBUF.size -> SIZE")
+  GET  (contents,              "WBUF.contents -> STR")
 #undef GETSETNAME
   { 0 }
 };
@@ -501,7 +509,7 @@ static PyMethodDef wbuf_pymethods[] = {
   BUF_DOSUFFIXES(WBMETH_DECL_PUTBLK_)
   METH (putmp,                 "WBUF.putmp(X)")
   METH (putgf,                 "WBUF.putgf(X)")
-  KWMETH(putecpt,              "WBUF.putecpt(P)")
+  METH (putecpt,               "WBUF.putecpt(P)")
   METH (putecptraw,            "WBUF.putecptraw(P)")
   METH (putge,                 "WBUF.putge(X)")
   METH (putgeraw,              "WBUF.putgeraw(X)")
@@ -541,7 +549,7 @@ static PyTypeObject wbuf_pytype_skel = {
     Py_TPFLAGS_BASETYPE,
 
   /* @tp_doc@ */
-  "A write buffer.",
+"WriteBuffer([size = ?]): a write buffer.",
 
   0,                                   /* @tp_traverse@ */
   0,                                   /* @tp_clear@ */