When running the SQLite unit-tests on Cygwin64
(but the same is expected to happen on any
64-bit UNIX-like system):
$ .libs/testfixture.exe test/tclsqlite.test
tcl-1.1... Ok
tcl-1.2... Ok
tcl-1.2.1...Segmentation fault (core dumped)
The cause of this crash is the Tcl function
Tcl_AppendResult(), which expects a 64-bit
NULL-pointer as last argument. But tclsqlite.c
uses 0 here, which is a 32-bit integer. The
compiler cannot know this, because the function
has a variable number of arguments.
Below's patch fixes this specific unit-test failure.
Many other Tcl_AppendResult() calls make the same
mistake, but in many other places it is done correctly.
The change from Tcl_GetStringFromObj() to
Tcl_GetString() is just meant to shorten the
line length: since the second argument is 0,
those are equivalent.
Regards,
Jan Nijtmans
--- src/tclsqlite.c
+++ src/tclsqlite.c
@@ -1835,11 +1835,11 @@
pDb->maxStmt = n;
}
}
}else{
Tcl_AppendResult( interp, "bad option \"",
- Tcl_GetStringFromObj(objv[2],0), "\": must be flush or size", 0);
+ Tcl_GetString(objv[2]), "\": must be flush or size", (char *)0);
return TCL_ERROR;
}
break;
}
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