From b9577c0641072a7e7060bad5357e549b75928132 Mon Sep 17 00:00:00 2001
From: sebres <sebres@users.sourceforge.net>
Date: Fri, 7 Sep 2018 10:45:30 +0000
Subject: closes [631b4c45df]: segfault by usage of wrong length (no string
 representation)

---
 generic/tclProc.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/generic/tclProc.c b/generic/tclProc.c
index dc58cb0..e51f5b3 100644
--- a/generic/tclProc.c
+++ b/generic/tclProc.c
@@ -504,10 +504,11 @@ TclCreateProc(
 	    goto procError;
 	}
 
-	nameLength = Tcl_NumUtfChars(Tcl_GetString(fieldValues[0]), fieldValues[0]->length);
+	argname = Tcl_GetStringFromObj(fieldValues[0], &plen);
+	nameLength = Tcl_NumUtfChars(argname, plen);
 	if (fieldCount == 2) {
-	    valueLength = Tcl_NumUtfChars(Tcl_GetString(fieldValues[1]),
-		fieldValues[1]->length);
+	    const char * value = TclGetString(fieldValues[1]);
+	    valueLength = Tcl_NumUtfChars(value, fieldValues[1]->length);
 	} else {
 	    valueLength = 0;
 	}
@@ -516,7 +517,6 @@ TclCreateProc(
 	 * Check that the formal parameter name is a scalar.
 	 */
 
-	argname = Tcl_GetStringFromObj(fieldValues[0], &plen);
 	argnamei = argname;
 	argnamelast = argname[plen-1];
 	while (plen--) {
-- 
cgit v0.12


From e80eaec4d3430e0db5f54dde5059821f35e77637 Mon Sep 17 00:00:00 2001
From: sebres <sebres@users.sourceforge.net>
Date: Fri, 7 Sep 2018 11:55:01 +0000
Subject: amend to [e8ab4d85fa], proc.test: extended with new test-case to
 cover situation like [631b4c45df]

---
 tests/proc.test | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/tests/proc.test b/tests/proc.test
index e06720e..f70fcbd 100644
--- a/tests/proc.test
+++ b/tests/proc.test
@@ -110,6 +110,14 @@ test proc-1.8 {Tcl_ProcObjCmd, check that formal parameter names are simple name
     proc p {b:a b::a} { 
     }
 } -returnCodes error -result {formal parameter "b::a" is not a simple name}
+test proc-1.9 {Tcl_ProcObjCmd, arguments via canonical list (string-representation bug [631b4c45df])} -body {
+    set v 2
+    binary scan AB cc a b
+    proc p [list [list a $a] [list b $b] [list v [expr {$v + 2}]]] {expr {$a + $b + $v}}
+    p
+} -result [expr {65+66+4}] -cleanup {
+   rename p {}
+}
 
 test proc-2.1 {TclFindProc, simple proc name and proc not in namespace} -setup {
     catch {namespace delete {*}[namespace children :: test_ns_*]}
-- 
cgit v0.12