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• What is the max hostname length on Solaris 8/10? And can it be expanded?

  - by darrickc

  I found getconf HOST_NAME_MAX to return 255 on my Sol 10 box, so I'm assuming that that is the max length of a hostname in Solaris 10. Can this be expanded? What about for ipv6?

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• Passing a hostname of over 255 characters to getaddrinfo causes a getaddrinfo failed: memory allocat

  - by darrickc

  I am currently upgrading our software to support ipv6 and in the meantime I'm expanding hostname/ip fields to the max hostname size. In sun documentation it seems like this can be up to 1025 (netdb.h:#define NI_MAXHOST 1025 - this is the recommended hostname allocation define), but when I pass a hostname of over 255 to getaddrinfo I get "getaddrinfo failed: memory allocation failure". I am testing on a Sol10 box. Ideas?

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• How do I get the directory that the currently executing jar file is in?

  - by darrickc

  I'm running a jar file in various locations and I'm trying to figure out how to get the location of the jar file that is running.

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