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| author | andreas_kupries <akupries@shaw.ca> | 2008-04-09 18:36:17 (GMT) |
|---|---|---|
| committer | andreas_kupries <akupries@shaw.ca> | 2008-04-09 18:36:17 (GMT) |
| commit | e5d9de8d2936e6830fbef2615afe0bda28903a81 (patch) | |
| tree | 44ddee7d24d6937590101d3e8526dd532f506393 /generic/tclIOCmd.c | |
| parent | 7ddc20c67752f9b428d5c213d2a1964790b2516a (diff) | |
| download | tcl-e5d9de8d2936e6830fbef2615afe0bda28903a81.zip tcl-e5d9de8d2936e6830fbef2615afe0bda28903a81.tar.gz tcl-e5d9de8d2936e6830fbef2615afe0bda28903a81.tar.bz2 | |
* generic/tclIOCmd.c (Tcl_FcopyObjCmd): Added checking of -size
* tests/ioCmd.test (iocmd-15.{13,14}): value to reject negative
values, and values overflowing 32-bit signed. [Bug 1557855]. Basic
patch by Alexandre Ferrieux <ferrieux@users.sourceforge.net>, with
modifications from me to separate overflow from true negative
value. Extended testsuite.
Diffstat (limited to 'generic/tclIOCmd.c')
| -rw-r--r-- | generic/tclIOCmd.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/generic/tclIOCmd.c b/generic/tclIOCmd.c index c1abee1..3c34845 100644 --- a/generic/tclIOCmd.c +++ b/generic/tclIOCmd.c @@ -8,7 +8,7 @@ * See the file "license.terms" for information on usage and redistribution of * this file, and for a DISCLAIMER OF ALL WARRANTIES. * - * RCS: @(#) $Id: tclIOCmd.c,v 1.51 2007/12/13 15:23:18 dgp Exp $ + * RCS: @(#) $Id: tclIOCmd.c,v 1.51.2.1 2008/04/09 18:36:18 andreas_kupries Exp $ */ #include "tclInt.h" @@ -1643,6 +1643,20 @@ Tcl_FcopyObjCmd( if (TclGetIntFromObj(interp, objv[i+1], &toRead) != TCL_OK) { return TCL_ERROR; } + if (toRead<0) { + Tcl_WideInt w; + if (Tcl_GetWideIntFromObj(interp, objv[i+1], &w) != TCL_OK) { + return TCL_ERROR; + } + if (w >= (Tcl_WideInt)0) { + Tcl_AppendResult(interp, + "integer value to large to represent as 32bit signed value", + NULL); + } else { + Tcl_AppendResult(interp, "negative size forbidden", NULL); + } + return TCL_ERROR; + } break; case FcopyCommand: cmdPtr = objv[i+1]; |