[JIRA] (SIGAR-231) Possible ERANGE from getpwuid_r() in sigar_proc_cred_name_get()

     https://jira.hyperic.com/browse/SIGAR-231?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Nevenka Bierny updated SIGAR-231:

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    Cases: 12137606001

Possible ERANGE from getpwuid_r() in sigar_proc_cred_name_get()

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                Key: SIGAR-231

                URL: https://jira.hyperic.com/browse/SIGAR-231

            Project: Sigar

         Issue Type: Bug

           Reporter: Doug MacEachern

           Assignee: Doug MacEachern

           Priority: Major

            Fix For: 1.6.6

 

>

sigar_proc_cred_name_get() uses getpwuid_r() underneath on Linux systems, where according the getpwuid_r() manpage:

"The maximum size needed for buf can be found using sysconf(3) with the argument SCGETPW_R_SIZE_MAX."

This seems to not be the case when looking up an entry outside of the local /etc/passwd (ldap for example).

The error surfaces in the Java bindings with the following exception:

Caused by: org.hyperic.sigar.SigarException: Numerical result out of range

       at org.hyperic.sigar.ProcCredName.gather(Native Method)

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