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| ID | Category | Severity | Type | Date Submitted | Last Update | ||
| 0000288 | [1003.1(2004)/Issue 6] System Interfaces | Objection | Error | 2010-07-16 21:02 | 2013-04-16 13:06 | ||
| Reporter | msbrown | View Status | public | ||||
| Assigned To | ajosey | ||||||
| Priority | normal | Resolution | Accepted As Marked | ||||
| Status | Closed | ||||||
| Name | Mark Brown | ||||||
| Organization | The Open Group | ||||||
| User Reference | ud-setlocale-ret | ||||||
| Section | setlocale | ||||||
| Page Number | 1318 | ||||||
| Line Number | 41265 | ||||||
| Interp Status | Approved | ||||||
| Final Accepted Text | Note: 0000466 | ||||||
| Summary | 0000288: setlocale and static return buffer | ||||||
| Description |
The specification currently (including the draft for the next revision) says this about the string pointer returned by setlocale(): The application shall not modify the string returned which may be overwritten by a subsequent call to setlocale(). The problem with this wording is that it requires a pointer to a static buffer to be returned which is used for the string representing the current locale setting for the category. This is highly undesirable since it limits the size of the used strings. If no static buffer would be required an additional condition has to be mentioned: the returned string pointer can become unusable after the next setlocale() call. This is perfectly reasonable. If the caller cares about the actual value s/he must make sure that no other setlocale() call is made before the string is copied. In most cases the caller only cares about the success of the call. This can be recognized even if the pointer becomes invalid. [Copied from xshbug2.txt ERN 250. Originally submitted by Ulrich Drepper. Processed too late to be included in IEEE Std 1003.1-2008. ] |
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| Desired Action |
Action: Change line 41265f to [...] The application shall not modify the string returned. The returned string pointer might be invalidated or the string content overwritten by a subsequent call to setlocale(). |
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| Tags | c99, tc1-2008 | ||||||
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Notes |
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(0000466) msbrown (manager) 2010-07-16 21:04 |
Interpretation response ------------------------ The standard states the requirements for setlocale() , and conforming implementations must conform to this. However, concerns have been raised about this which are being referred to the sponsor. Rationale: ------------- See Description. Notes to the Editor (not part of this interpretation): ------------------------------------------------------- Change line 41265f to [...] The application shall not modify the string returned. [CX]The returned string pointer might be invalidated or [/CX] the string content might be overwritten by a subsequent call to setlocale(). Add new para as last para of DESCRIPTION The implementation shall behave as if no function defined in this volume of POSIX.1-200x calls setlocale() A new para of APP USAGE "In order to make use of different locale settings while multiple threads are running, applications should use uselocale() in preference to setlocale()." |
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(0000504) ajosey (manager) 2010-07-30 08:22 |
Comments/objections on the proposed interpretation are due by COB Aug 31 2010 |
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Issue History |
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| Date Modified | Username | Field | Change |
| 2010-07-16 21:02 | msbrown | New Issue | |
| 2010-07-16 21:02 | msbrown | Status | New => Under Review |
| 2010-07-16 21:02 | msbrown | Assigned To | => ajosey |
| 2010-07-16 21:02 | msbrown | Name | => Mark Brown |
| 2010-07-16 21:02 | msbrown | Organization | => The Open Group |
| 2010-07-16 21:02 | msbrown | User Reference | => ud-setlocale-ret |
| 2010-07-16 21:02 | msbrown | Section | => setlocale |
| 2010-07-16 21:02 | msbrown | Page Number | => 1318 |
| 2010-07-16 21:02 | msbrown | Line Number | => 41265 |
| 2010-07-16 21:02 | msbrown | Interp Status | => Pending |
| 2010-07-16 21:02 | msbrown | Final Accepted Text | => Note: 0000465 |
| 2010-07-16 21:02 | msbrown | Issue generated from | 0000287 |
| 2010-07-16 21:04 | msbrown | Note Added: 0000466 | |
| 2010-07-16 21:05 | msbrown | Final Accepted Text | Note: 0000465 => Note: 0000466 |
| 2010-07-16 21:05 | msbrown | Status | Under Review => Interpretation Required |
| 2010-07-16 21:05 | msbrown | Resolution | Open => Accepted As Marked |
| 2010-07-30 08:22 | ajosey | Interp Status | Pending => Proposed |
| 2010-07-30 08:22 | ajosey | Note Added: 0000504 | |
| 2010-09-03 16:43 | ajosey | Interp Status | Proposed => Approved |
| 2010-09-03 21:22 | Don Cragun | Tag Attached: tc1-2008 | |
| 2010-09-07 10:53 | geoffclare | Relationship added | related to 0000075 |
| 2011-03-17 10:42 | nick | Tag Attached: c99 | |
| 2013-04-16 13:06 | ajosey | Status | Interpretation Required => Closed |
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