New submission from Radek Smejkal:
If the port argument is a number, getaddrinfo attempts to convert it to a C
long, that raises OverflowError if the conversion fails.
Instead, getaddrinfo should convert the port to a string (bytes) directly and
rely on the underlying getaddrinfo to return
New submission from Radek Smejkal:
Some getaddrinfo implementations do not detect invalid numeric services and
blindly pass the port number to htons(). For example, service "960179" is
returned as port 42675.
glibc
https://sourceware.org/bugzilla/show_bug.cgi?id=16208
https://sour
Radek Smejkal added the comment:
Use PyObject_Str and PyUnicode_AsUTF8 if the port argument is a PyLong instead
of converting it to an intermediate C long that may raise OverflowError. See
getaddrinfo_overflow_error.patch
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components: +Extension Modules -Library (Lib)
keywords
Radek Smejkal added the comment:
> But how large is the performance hit of this change? It adds at least one
> additional memory allocation for the str object. If the slowdown is
> significant perhaps it is worth to keep the old code as a fast path
Radek Smejkal added the comment:
> Why can't the user simply pass in a string service name in the first place?
He/she can. But I don't propose to change that. The patch only changes the way
a given number is converted to a string. That is, without an interme
Radek Smejkal added the comment:
> I like your idea about getting rid of OverflowError. But wouldn't it make the
> problem with other reported by you issue, issue30711, worse?
It depends on the implementation of the underlying getaddrinfo. For
Modules/getaddrinfo.c, it will b
Changes by Radek Smejkal :
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components: +Extension Modules -Library (Lib)
keywords: +patch
Added file: http://bugs.python.org/file46965/getaddrinfo_invalid_port.patch
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Changes by Radek Smejkal :
Removed file: http://bugs.python.org/file46965/getaddrinfo_invalid_port.patch
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Radek Smejkal added the comment:
See also issue30710.
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New submission from Radek Smejkal:
Modules/getaddrinfo.c should support AI_NUMERICSERV.
Moreover, not supporting AI_NUMERICSERV may cause troubles on platforms where
the getaddrinfo function is available but it's buggy (see configure.ac and
Modules/socketmodule.c), because Modules/addri
Radek Smejkal added the comment:
See also issue30786.
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Changes by Radek Smejkal :
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Changes by Radek Smejkal :
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Changes by Radek Smejkal :
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