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From kgiu...@apache.org
Subject qpid-proton git commit: PROTON-490: avoid decoding text if method calls fail
Date Mon, 27 Apr 2015 15:41:38 GMT
Repository: qpid-proton
Updated Branches:
  refs/heads/kgiusti-python3 99299d3b3 -> 9380ed938


PROTON-490: avoid decoding text if method calls fail


Project: http://git-wip-us.apache.org/repos/asf/qpid-proton/repo
Commit: http://git-wip-us.apache.org/repos/asf/qpid-proton/commit/9380ed93
Tree: http://git-wip-us.apache.org/repos/asf/qpid-proton/tree/9380ed93
Diff: http://git-wip-us.apache.org/repos/asf/qpid-proton/diff/9380ed93

Branch: refs/heads/kgiusti-python3
Commit: 9380ed938fafa9e19cb0d3514725427d8243041b
Parents: 99299d3
Author: Ken Giusti <kgiusti@apache.org>
Authored: Mon Apr 27 11:41:04 2015 -0400
Committer: Ken Giusti <kgiusti@apache.org>
Committed: Mon Apr 27 11:41:04 2015 -0400

----------------------------------------------------------------------
 proton-c/bindings/python/cproton.i | 40 ++++++++++++++++++++++++++++++---
 1 file changed, 37 insertions(+), 3 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/qpid-proton/blob/9380ed93/proton-c/bindings/python/cproton.i
----------------------------------------------------------------------
diff --git a/proton-c/bindings/python/cproton.i b/proton-c/bindings/python/cproton.i
index 328d68a..7317ca1 100644
--- a/proton-c/bindings/python/cproton.i
+++ b/proton-c/bindings/python/cproton.i
@@ -34,7 +34,6 @@
 
 %include <cstring.i>
 
-%cstring_output_withsize(char *OUTPUT, size_t *OUTPUT_SIZE)
 %cstring_output_allocate_size(char **ALLOC_OUTPUT, size_t *ALLOC_SIZE, free(*$1));
 %cstring_output_maxsize(char *OUTPUT, size_t MAX_OUTPUT_SIZE)
 
@@ -61,6 +60,27 @@
   %append_output(PyBytes_FromStringAndSize($1,*$2));
 }
 
+// Typemap for those methods that return variable length text data in a buffer
+// provided as a parameter.  If the method fails we must avoid attempting to
+// decode the contents of the buffer as it does not carry valid text data.
+%typemap(in,noblock=1,fragment=SWIG_AsVal_frag(size_t)) (char *VTEXT_OUT, size_t *VTEXT_SIZE)
+(int res, size_t n, char *buff = 0, $*2_ltype size) {
+  res = SWIG_AsVal(size_t)($input, &n);
+  if (!SWIG_IsOK(res)) {
+    %argument_fail(res, "(char *VTEXT_OUT, size_t *VTEXT_SIZE)", $symname, $argnum);
+  }
+  buff = %new_array(n+1, char);
+  $1 = %static_cast(buff, $1_ltype);
+  size = %numeric_cast(n,$*2_ltype);
+  $2 = &size;
+}
+%typemap(freearg,noblock=1,match="in")(char *VTEXT_OUT, size_t *VTEXT_SIZE) {
+  if (buff$argnum) %delete_array(buff$argnum);
+}
+%typemap(argout,noblock=1,fragment="SWIG_FromCharPtrAndSize") (char *VTEXT_OUT, size_t *VTEXT_SIZE)
{
+  %append_output(SWIG_FromCharPtrAndSize($1,*$2));
+}
+
 
 // These are not used/needed in the python binding
 %ignore pn_message_get_id;
@@ -186,7 +206,14 @@ ssize_t pn_data_decode(pn_data_t *data, const char *BIN_IN, size_t BIN_LEN);
 %}
 %ignore pn_data_encode;
 
-int pn_data_format(pn_data_t *data, char *OUTPUT, size_t *OUTPUT_SIZE);
+%rename(pn_data_format) wrap_pn_data_format;
+%inline %{
+  int wrap_pn_data_format(pn_data_t *data, char *VTEXT_OUT, size_t *VTEXT_SIZE) {
+    int err = pn_data_format(data, VTEXT_OUT, VTEXT_SIZE);
+    if (err) *VTEXT_SIZE = 0;
+    return err;
+  }
+%}
 %ignore pn_data_format;
 
 bool pn_ssl_get_cipher_name(pn_ssl_t *ssl, char *OUTPUT, size_t MAX_OUTPUT_SIZE);
@@ -195,7 +222,14 @@ bool pn_ssl_get_cipher_name(pn_ssl_t *ssl, char *OUTPUT, size_t MAX_OUTPUT_SIZE)
 bool pn_ssl_get_protocol_name(pn_ssl_t *ssl, char *OUTPUT, size_t MAX_OUTPUT_SIZE);
 %ignore pn_ssl_get_protocol_name;
 
-int pn_ssl_get_peer_hostname(pn_ssl_t *ssl, char *OUTPUT, size_t *OUTPUT_SIZE);
+%rename(pn_ssl_get_peer_hostname) wrap_pn_ssl_get_peer_hostname;
+%inline %{
+  int wrap_pn_ssl_get_peer_hostname(pn_ssl_t *ssl, char *VTEXT_OUT, size_t *VTEXT_SIZE) {
+    int err = pn_ssl_get_peer_hostname(ssl, VTEXT_OUT, VTEXT_SIZE);
+    if (err) *VTEXT_SIZE = 0;
+    return err;
+  }
+%}
 %ignore pn_ssl_get_peer_hostname;
 
 %immutable PN_PYREF;


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