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Temporary fixes for failed segment and forgotten min_stat exception #29

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Temporary fixes for failed segment and forgotten min_stat exception #29

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63d0aa1
Remove memory segment fault issue
Zogoo Sep 6, 2019
9a74303
Error without min stat
Zogoo Sep 6, 2019
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17 changes: 17 additions & 0 deletions lib/gssapi/exceptions.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -21,6 +21,23 @@ def initialize(maj_stat = nil, min_stat = nil)

if(maj_stat.nil? && min_stat.nil?)
@s = '(no error info)'
elsif (min_stat.nil?)
min = FFI::MemoryPointer.new :OM_uint32
message_context = FFI::MemoryPointer.new :OM_uint32
@s = ''
oid = GssOID.gss_c_no_oid
message_context.write_int 0
begin
out_buff = ManagedGssBufferDesc.new
maj = gss_display_status(min, maj_stat, GSS_C_GSS_CODE, oid, message_context, out_buff.pointer)
if (maj != 0)
@s += "failed to retrieve GSSAPI display for status #{maj_stat}"
@s += " of major status #{maj_stat}\n"
@s += "(with major status #{maj}, minor status #{min.read_uint32}\n"
break
end
@s += out_buff.value.to_s + "\n"
end while message_context.read_int != 0
else
min = FFI::MemoryPointer.new :OM_uint32
message_context = FFI::MemoryPointer.new :OM_uint32
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2 changes: 1 addition & 1 deletion lib/gssapi/simple.rb
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Expand Up @@ -261,7 +261,7 @@ def unwrap_message(msg, encrypted = true)
# @param [String] keytab the path to the keytab
def set_keytab(keytab)
maj_stat = LibGSSAPI.krb5_gss_register_acceptor_identity(keytab)
raise GssApiError.new(maj_stat, min_stat), "krb5_gss_register_acceptor_identity did not return GSS_S_COMPLETE" if maj_stat != 0
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min_stat will be nil in here, but still, it's trying to get some status from here.

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@Zogoo Zogoo Nov 25, 2020 •
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@zenchild in this method there is no min_stat defined in here right? Any explanation that why you use undefined min_stat in here?

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Hmmm, that looks like an oversight. There are a few things implemented in this library that I haven't used. I was coding most of it from documentation. 😄 I'll create a new issue to look into it.

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So I looked at the MIT source and this PR should fix the issue (#33 ). I'll push to a new gem soon.

raise GssApiError.new(maj_stat), "krb5_gss_register_acceptor_identity did not return GSS_S_COMPLETE" if maj_stat != 0
true
end

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