View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0017099 | Community | OCCT:Data Exchange | public | 2007-09-28 13:25 | 2009-06-24 15:21 |
| Reporter | Assigned To | ||||
| Priority | normal | Severity | trivial | ||
| Status | closed | Resolution | fixed | ||
| OS | All | ||||
| Fixed in Version | 6.2.1 | ||||
| Summary | 0017099: [OCC Forum] bug in reading IGES file | ||||
| Description | This bug is reported by JMB on OCC Forum thread 10581 (http://www.opencascade.org/org/forum/thread_10581): ----------- Hello, Just to mention that there is a bug in Interface_ParamSet::Append when reading the General section of an IGES file. This method has as input a String, and try to store it inside some local array of characters. The problem is in the following lines of code : // .. Gestion locale des caracteres .. Standard_Integer i; if (thelnval + lnval + 1 > thelnres) { // Reservation de caracteres insuffisante : d abord augmenter Standard_Integer newres = thelnres*2; char* newval = new char[newres]; As you can guess (even if you don't understand french comments), if the size of the string to add (lnval) tends to be greater than the current allocated size (thelnres), then it tries to do some reallocation job by growing the reserved size by twice. Well I must admit that this is an original implementation of reallocation And what if the string to add still have a greater size after multiplying by 2... ? Yes, it will probaly crash soon or later because there is writing in memory non- allocated Hope OCC team will correct this. Regards. Jean Michel | ||||
| Tags | No tags attached. | ||||
| Test case number | |||||
| related to | 0017026 | closed | Open CASCADE | Problem of reading an IGES files |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2007-09-28 13:31 |
|
BugsThisDependsOn | => 17026 |
| 2007-09-28 13:33 |
|
CC | => gka |
| 2007-10-02 17:22 | bugmaster | Status | closed => assigned |
| 2007-10-02 17:22 | bugmaster | Resolution | suspended => @0@ |
| 2007-10-02 17:23 | bugmaster | Assigned To | bugmaster => gka |
| 2007-10-02 17:25 |
|
Status | assigned => resolved |
| 2007-10-09 17:42 | bugmaster | Status | resolved => tested |
| 2007-10-25 18:34 | bugmaster | Status | tested => verified |
| 2009-06-24 17:21 | bugmaster | Status | verified => closed |
| 2009-06-24 17:21 | bugmaster | Resolution | @0@ => fixed |
| 2011-08-02 11:12 | bugmaster | Category | OCCT:DTE => OCCT:Data Exchange |
