View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0000833 | 1003.1(2013)/Issue7+TC1 | System Interfaces | public | 2014-04-19 00:09 | 2014-05-01 16:19 |
| Reporter | nsz | Assigned To | ajosey | ||
| Priority | normal | Severity | Editorial | Type | Clarification Requested |
| Status | Resolved | Resolution | Accepted As Marked | ||
| Name | Szabolcs Nagy | ||||
| Organization | musl libc | ||||
| User Reference | |||||
| Section | getaddrinfo | ||||
| Page Number | 925 | ||||
| Line Number | 31191-31192 | ||||
| Interp Status | --- | ||||
| Final Accepted Text | See 0000833:0002241. | ||||
| Summary | 0000833: SOCK_* flags in getaddrinfo hints->ai_socktype | ||||
| Description | getaddrinfo description says "The ai_socktype field to which argument hints points specifies the socket type for the service, as defined in socket." the "socket type as defined in socket" is unclear now: it may mean the type argument of socket() (which since 0000411 includes SOCK_CLOEXEC and SOCK_NONBLOCK flags) or only the socket types without flags (as defined in XSH 2.10.6). in other words one might interpret the text so that hints.ai_socktype = SOCK_STREAM|SOCK_CLOEXEC; getaddrinfo(host, port, &hints, &p) ... sock(p->ai_family, p->ai_socktype, p->ai_protocol); is idiomatic getaddrinfo usage, instead of hints.ai_socktype = SOCK_STREAM; getaddrinfo(host, port, &hints, &p) ... sock(p->ai_family, p->ai_socktype|SOCK_CLOEXEC, p->ai_protocol); | ||||
| Desired Action | Clarify ai_socktype with respect ot the new socket type flags. | ||||
| Tags | No tags attached. | ||||
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During the 24 April 2014 call, it was determined that the intent of 0000411 is that the two new SOCK_ flags are for use only when opening an fd (socket(), socketpair(), accept4()). An application can recover the current state of the flags via fcntl() F_GETFL and F_GETFD - but that state may be different than what was originally passed in when opening the socket if intervening fcntl() F_SETFL or F_SETFD have been used. Therefore, the flags should NOT be used in other interfaces that are referring to a socket type. Thus, getaddrinfo() should fail with EAI_SOCKTYPE if the caller includes either flag in the hints, and getsockopt() with SO_TYPE should return the type with the flags masked out. In the original poster's description, only the second code snippet is valid. However, we need formal wording to codify this intent on top of the requirements added by 411, so we'll leave this open a bit longer. |
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The changes for this issue have been included in the updated fix for 0000411. |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2014-04-19 00:09 | nsz | New Issue | |
| 2014-04-19 00:09 | nsz | Status | New => Under Review |
| 2014-04-19 00:09 | nsz | Assigned To | => ajosey |
| 2014-04-19 00:09 | nsz | Name | => Szabolcs Nagy |
| 2014-04-19 00:09 | nsz | Organization | => musl libc |
| 2014-04-19 00:09 | nsz | Section | => getaddrinfo |
| 2014-04-24 15:50 | eblake | Relationship added | related to 0000411 |
| 2014-04-24 15:50 | geoffclare | Project | 2008-TC1 => 1003.1(2013)/Issue7+TC1 |
| 2014-04-24 15:51 | Don Cragun | Interp Status | => --- |
| 2014-04-24 15:51 | Don Cragun | Description Updated | |
| 2014-04-24 15:59 | eblake | Tag Attached: issue8 | |
| 2014-04-24 16:34 | eblake | Note Added: 0002235 | |
| 2014-04-24 17:20 | eblake | Note Edited: 0002235 | |
| 2014-05-01 14:49 | nick | Page Number | => 925 |
| 2014-05-01 14:49 | nick | Line Number | => 31191-31192 |
| 2014-05-01 16:18 | Don Cragun | Final Accepted Text | => See 0000833:0002241. |
| 2014-05-01 16:18 | Don Cragun | Note Added: 0002241 | |
| 2014-05-01 16:18 | Don Cragun | Status | Under Review => Resolved |
| 2014-05-01 16:18 | Don Cragun | Resolution | Open => Accepted As Marked |
| 2014-05-01 16:19 | Don Cragun | Relationship replaced | child of 0000411 |
| 2020-05-19 09:42 | geoffclare | Tag Detached: issue8 |
