IV91431: GETSOCKNAME() RETURNS INCORRECT NAMELENGTH 16/12/29 PTF PECHANGE

APAR status

• Closed as program error.

Error description

• **************************************************************
  * USERS AFFECTED:
    * Systems running the AIX 7100-04 Technology Level
    * with bos.mp64 at the 7.1.4.30 level.
    **************************************************************
    * PROBLEM DESCRIPTION:
    * In 7100-04-03 and 7200-01-00/01, the
    * getsockname() API returns incorrect NameLength.
    * It can also truncate the socket path, for long paths.
    *
    * We have seen this cause a failure in starting SAP.
    **************************************************************
    * RECOMMENDATION:
    * Install APAR IV91431.
    * Prior to fix availability, an interim fix is available from
    * either
    * ftp://aix.software.ibm.com/aix/ifixes/iv91431/
    * https://aix.software.ibm.com/aix/ifixes/iv91431/
    * Installation of the ifix requires a reboot.
    **************************************************************
  

Local fix

Problem summary

• The getsockname() call copies the length of
  the full socket address structure (1025) into the
  NameLength field instead of the actual size of
  the socket address.
  .
  There are also issues with storing socket addresses
  greater than 255 characters that cause getsockname()
  to return truncated path for such sockets.
  

Problem conclusion

• Restore the correct behavior of getsockname() with
  regard to the above issues.
  

Temporary fix

•   *********
    * HIPER *
    *********
  

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

  IV91432 IV91438 IV91439

Fix information

• Fixed component name

  AIX V7.1

• Fixed component ID

  5765H4000

Applicable component levels

• R710 PSY U873031

     UP16/12/19 I 1000 Ž