Importación de la libpopc.
Félix Arreola Rodríguez
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GNU GENERAL PUBLIC LICENSE
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Version 3, 29 June 2007
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Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
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Everyone is permitted to copy and distribute verbatim copies
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of this license document, but changing it is not allowed.
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Preamble
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The GNU General Public License is a free, copyleft license for
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software and other kinds of works.
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The licenses for most software and other practical works are designed
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to take away your freedom to share and change the works. By contrast,
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the GNU General Public License is intended to guarantee your freedom to
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share and change all versions of a program--to make sure it remains free
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software for all its users. We, the Free Software Foundation, use the
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GNU General Public License for most of our software; it applies also to
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any other work released this way by its authors. You can apply it to
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your programs, too.
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When we speak of free software, we are referring to freedom, not
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To protect your rights, we need to prevent others from denying you
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Developers that use the GNU GPL protect your rights with two steps:
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Finally, every program is threatened constantly by software patents.
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The precise terms and conditions for copying, distribution and
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TERMS AND CONDITIONS
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0. Definitions.
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"This License" refers to version 3 of the GNU General Public License.
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All rights granted under this License are granted for the term of
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in or on a volume of a storage or distribution medium, is called an
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"aggregate" if the compilation and its resulting copyright are not
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used to limit the access or legal rights of the compilation's users
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beyond what the individual works permit. Inclusion of a covered work
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6. Conveying Non-Source Forms.
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You may convey a covered work in object code form under the terms
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machine-readable Corresponding Source under the terms of this License,
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in one of these ways:
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a) Convey the object code in, or embodied in, a physical product
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Corresponding Source fixed on a durable physical medium
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customarily used for software interchange.
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b) Convey the object code in, or embodied in, a physical product
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(including a physical distribution medium), accompanied by a
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written offer, valid for at least three years and valid for as
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long as you offer spare parts or customer support for that product
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model, to give anyone who possesses the object code either (1) a
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copy of the Corresponding Source for all the software in the
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product that is covered by this License, on a durable physical
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medium customarily used for software interchange, for a price no
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more than your reasonable cost of physically performing this
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conveying of source, or (2) access to copy the
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Corresponding Source from a network server at no charge.
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c) Convey individual copies of the object code with a copy of the
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written offer to provide the Corresponding Source. This
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alternative is allowed only occasionally and noncommercially, and
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only if you received the object code with such an offer, in accord
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d) Convey the object code by offering access from a designated
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Corresponding Source in the same way through the same place at no
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further charge. You need not require recipients to copy the
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Corresponding Source along with the object code. If the place to
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copy the object code is a network server, the Corresponding Source
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may be on a different server (operated by you or a third party)
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that supports equivalent copying facilities, provided you maintain
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clear directions next to the object code saying where to find the
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Corresponding Source. Regardless of what server hosts the
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Corresponding Source, you remain obligated to ensure that it is
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available for as long as needed to satisfy these requirements.
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e) Convey the object code using peer-to-peer transmission, provided
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you inform other peers where the object code and Corresponding
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Source of the work are being offered to the general public at no
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charge under subsection 6d.
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|
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A separable portion of the object code, whose source code is excluded
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from the Corresponding Source as a System Library, need not be
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included in conveying the object code work.
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A "User Product" is either (1) a "consumer product", which means any
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tangible personal property which is normally used for personal, family,
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or household purposes, or (2) anything designed or sold for incorporation
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into a dwelling. In determining whether a product is a consumer product,
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doubtful cases shall be resolved in favor of coverage. For a particular
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product received by a particular user, "normally used" refers to a
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typical or common use of that class of product, regardless of the status
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actually uses, or expects or is expected to use, the product. A product
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is a consumer product regardless of whether the product has substantial
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commercial, industrial or non-consumer uses, unless such uses represent
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the only significant mode of use of the product.
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"Installation Information" for a User Product means any methods,
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procedures, authorization keys, or other information required to install
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and execute modified versions of a covered work in that User Product from
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a modified version of its Corresponding Source. The information must
|
||||||
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suffice to ensure that the continued functioning of the modified object
|
||||||
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code is in no case prevented or interfered with solely because
|
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modification has been made.
|
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|
||||||
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If you convey an object code work under this section in, or with, or
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specifically for use in, a User Product, and the conveying occurs as
|
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part of a transaction in which the right of possession and use of the
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User Product is transferred to the recipient in perpetuity or for a
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fixed term (regardless of how the transaction is characterized), the
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Corresponding Source conveyed under this section must be accompanied
|
||||||
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by the Installation Information. But this requirement does not apply
|
||||||
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if neither you nor any third party retains the ability to install
|
||||||
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modified object code on the User Product (for example, the work has
|
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been installed in ROM).
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|
||||||
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The requirement to provide Installation Information does not include a
|
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requirement to continue to provide support service, warranty, or updates
|
||||||
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for a work that has been modified or installed by the recipient, or for
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the User Product in which it has been modified or installed. Access to a
|
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network may be denied when the modification itself materially and
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adversely affects the operation of the network or violates the rules and
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protocols for communication across the network.
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|
||||||
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Corresponding Source conveyed, and Installation Information provided,
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in accord with this section must be in a format that is publicly
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documented (and with an implementation available to the public in
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source code form), and must require no special password or key for
|
||||||
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unpacking, reading or copying.
|
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|
||||||
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7. Additional Terms.
|
||||||
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|
||||||
|
"Additional permissions" are terms that supplement the terms of this
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||||||
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License by making exceptions from one or more of its conditions.
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Additional permissions that are applicable to the entire Program shall
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||||||
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be treated as though they were included in this License, to the extent
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||||||
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that they are valid under applicable law. If additional permissions
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||||||
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apply only to part of the Program, that part may be used separately
|
||||||
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under those permissions, but the entire Program remains governed by
|
||||||
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this License without regard to the additional permissions.
|
||||||
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|
||||||
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When you convey a copy of a covered work, you may at your option
|
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remove any additional permissions from that copy, or from any part of
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it. (Additional permissions may be written to require their own
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removal in certain cases when you modify the work.) You may place
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additional permissions on material, added by you to a covered work,
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||||||
|
for which you have or can give appropriate copyright permission.
|
||||||
|
|
||||||
|
Notwithstanding any other provision of this License, for material you
|
||||||
|
add to a covered work, you may (if authorized by the copyright holders of
|
||||||
|
that material) supplement the terms of this License with terms:
|
||||||
|
|
||||||
|
a) Disclaiming warranty or limiting liability differently from the
|
||||||
|
terms of sections 15 and 16 of this License; or
|
||||||
|
|
||||||
|
b) Requiring preservation of specified reasonable legal notices or
|
||||||
|
author attributions in that material or in the Appropriate Legal
|
||||||
|
Notices displayed by works containing it; or
|
||||||
|
|
||||||
|
c) Prohibiting misrepresentation of the origin of that material, or
|
||||||
|
requiring that modified versions of such material be marked in
|
||||||
|
reasonable ways as different from the original version; or
|
||||||
|
|
||||||
|
d) Limiting the use for publicity purposes of names of licensors or
|
||||||
|
authors of the material; or
|
||||||
|
|
||||||
|
e) Declining to grant rights under trademark law for use of some
|
||||||
|
trade names, trademarks, or service marks; or
|
||||||
|
|
||||||
|
f) Requiring indemnification of licensors and authors of that
|
||||||
|
material by anyone who conveys the material (or modified versions of
|
||||||
|
it) with contractual assumptions of liability to the recipient, for
|
||||||
|
any liability that these contractual assumptions directly impose on
|
||||||
|
those licensors and authors.
|
||||||
|
|
||||||
|
All other non-permissive additional terms are considered "further
|
||||||
|
restrictions" within the meaning of section 10. If the Program as you
|
||||||
|
received it, or any part of it, contains a notice stating that it is
|
||||||
|
governed by this License along with a term that is a further
|
||||||
|
restriction, you may remove that term. If a license document contains
|
||||||
|
a further restriction but permits relicensing or conveying under this
|
||||||
|
License, you may add to a covered work material governed by the terms
|
||||||
|
of that license document, provided that the further restriction does
|
||||||
|
not survive such relicensing or conveying.
|
||||||
|
|
||||||
|
If you add terms to a covered work in accord with this section, you
|
||||||
|
must place, in the relevant source files, a statement of the
|
||||||
|
additional terms that apply to those files, or a notice indicating
|
||||||
|
where to find the applicable terms.
|
||||||
|
|
||||||
|
Additional terms, permissive or non-permissive, may be stated in the
|
||||||
|
form of a separately written license, or stated as exceptions;
|
||||||
|
the above requirements apply either way.
|
||||||
|
|
||||||
|
8. Termination.
|
||||||
|
|
||||||
|
You may not propagate or modify a covered work except as expressly
|
||||||
|
provided under this License. Any attempt otherwise to propagate or
|
||||||
|
modify it is void, and will automatically terminate your rights under
|
||||||
|
this License (including any patent licenses granted under the third
|
||||||
|
paragraph of section 11).
|
||||||
|
|
||||||
|
However, if you cease all violation of this License, then your
|
||||||
|
license from a particular copyright holder is reinstated (a)
|
||||||
|
provisionally, unless and until the copyright holder explicitly and
|
||||||
|
finally terminates your license, and (b) permanently, if the copyright
|
||||||
|
holder fails to notify you of the violation by some reasonable means
|
||||||
|
prior to 60 days after the cessation.
|
||||||
|
|
||||||
|
Moreover, your license from a particular copyright holder is
|
||||||
|
reinstated permanently if the copyright holder notifies you of the
|
||||||
|
violation by some reasonable means, this is the first time you have
|
||||||
|
received notice of violation of this License (for any work) from that
|
||||||
|
copyright holder, and you cure the violation prior to 30 days after
|
||||||
|
your receipt of the notice.
|
||||||
|
|
||||||
|
Termination of your rights under this section does not terminate the
|
||||||
|
licenses of parties who have received copies or rights from you under
|
||||||
|
this License. If your rights have been terminated and not permanently
|
||||||
|
reinstated, you do not qualify to receive new licenses for the same
|
||||||
|
material under section 10.
|
||||||
|
|
||||||
|
9. Acceptance Not Required for Having Copies.
|
||||||
|
|
||||||
|
You are not required to accept this License in order to receive or
|
||||||
|
run a copy of the Program. Ancillary propagation of a covered work
|
||||||
|
occurring solely as a consequence of using peer-to-peer transmission
|
||||||
|
to receive a copy likewise does not require acceptance. However,
|
||||||
|
nothing other than this License grants you permission to propagate or
|
||||||
|
modify any covered work. These actions infringe copyright if you do
|
||||||
|
not accept this License. Therefore, by modifying or propagating a
|
||||||
|
covered work, you indicate your acceptance of this License to do so.
|
||||||
|
|
||||||
|
10. Automatic Licensing of Downstream Recipients.
|
||||||
|
|
||||||
|
Each time you convey a covered work, the recipient automatically
|
||||||
|
receives a license from the original licensors, to run, modify and
|
||||||
|
propagate that work, subject to this License. You are not responsible
|
||||||
|
for enforcing compliance by third parties with this License.
|
||||||
|
|
||||||
|
An "entity transaction" is a transaction transferring control of an
|
||||||
|
organization, or substantially all assets of one, or subdividing an
|
||||||
|
organization, or merging organizations. If propagation of a covered
|
||||||
|
work results from an entity transaction, each party to that
|
||||||
|
transaction who receives a copy of the work also receives whatever
|
||||||
|
licenses to the work the party's predecessor in interest had or could
|
||||||
|
give under the previous paragraph, plus a right to possession of the
|
||||||
|
Corresponding Source of the work from the predecessor in interest, if
|
||||||
|
the predecessor has it or can get it with reasonable efforts.
|
||||||
|
|
||||||
|
You may not impose any further restrictions on the exercise of the
|
||||||
|
rights granted or affirmed under this License. For example, you may
|
||||||
|
not impose a license fee, royalty, or other charge for exercise of
|
||||||
|
rights granted under this License, and you may not initiate litigation
|
||||||
|
(including a cross-claim or counterclaim in a lawsuit) alleging that
|
||||||
|
any patent claim is infringed by making, using, selling, offering for
|
||||||
|
sale, or importing the Program or any portion of it.
|
||||||
|
|
||||||
|
11. Patents.
|
||||||
|
|
||||||
|
A "contributor" is a copyright holder who authorizes use under this
|
||||||
|
License of the Program or a work on which the Program is based. The
|
||||||
|
work thus licensed is called the contributor's "contributor version".
|
||||||
|
|
||||||
|
A contributor's "essential patent claims" are all patent claims
|
||||||
|
owned or controlled by the contributor, whether already acquired or
|
||||||
|
hereafter acquired, that would be infringed by some manner, permitted
|
||||||
|
by this License, of making, using, or selling its contributor version,
|
||||||
|
but do not include claims that would be infringed only as a
|
||||||
|
consequence of further modification of the contributor version. For
|
||||||
|
purposes of this definition, "control" includes the right to grant
|
||||||
|
patent sublicenses in a manner consistent with the requirements of
|
||||||
|
this License.
|
||||||
|
|
||||||
|
Each contributor grants you a non-exclusive, worldwide, royalty-free
|
||||||
|
patent license under the contributor's essential patent claims, to
|
||||||
|
make, use, sell, offer for sale, import and otherwise run, modify and
|
||||||
|
propagate the contents of its contributor version.
|
||||||
|
|
||||||
|
In the following three paragraphs, a "patent license" is any express
|
||||||
|
agreement or commitment, however denominated, not to enforce a patent
|
||||||
|
(such as an express permission to practice a patent or covenant not to
|
||||||
|
sue for patent infringement). To "grant" such a patent license to a
|
||||||
|
party means to make such an agreement or commitment not to enforce a
|
||||||
|
patent against the party.
|
||||||
|
|
||||||
|
If you convey a covered work, knowingly relying on a patent license,
|
||||||
|
and the Corresponding Source of the work is not available for anyone
|
||||||
|
to copy, free of charge and under the terms of this License, through a
|
||||||
|
publicly available network server or other readily accessible means,
|
||||||
|
then you must either (1) cause the Corresponding Source to be so
|
||||||
|
available, or (2) arrange to deprive yourself of the benefit of the
|
||||||
|
patent license for this particular work, or (3) arrange, in a manner
|
||||||
|
consistent with the requirements of this License, to extend the patent
|
||||||
|
license to downstream recipients. "Knowingly relying" means you have
|
||||||
|
actual knowledge that, but for the patent license, your conveying the
|
||||||
|
covered work in a country, or your recipient's use of the covered work
|
||||||
|
in a country, would infringe one or more identifiable patents in that
|
||||||
|
country that you have reason to believe are valid.
|
||||||
|
|
||||||
|
If, pursuant to or in connection with a single transaction or
|
||||||
|
arrangement, you convey, or propagate by procuring conveyance of, a
|
||||||
|
covered work, and grant a patent license to some of the parties
|
||||||
|
receiving the covered work authorizing them to use, propagate, modify
|
||||||
|
or convey a specific copy of the covered work, then the patent license
|
||||||
|
you grant is automatically extended to all recipients of the covered
|
||||||
|
work and works based on it.
|
||||||
|
|
||||||
|
A patent license is "discriminatory" if it does not include within
|
||||||
|
the scope of its coverage, prohibits the exercise of, or is
|
||||||
|
conditioned on the non-exercise of one or more of the rights that are
|
||||||
|
specifically granted under this License. You may not convey a covered
|
||||||
|
work if you are a party to an arrangement with a third party that is
|
||||||
|
in the business of distributing software, under which you make payment
|
||||||
|
to the third party based on the extent of your activity of conveying
|
||||||
|
the work, and under which the third party grants, to any of the
|
||||||
|
parties who would receive the covered work from you, a discriminatory
|
||||||
|
patent license (a) in connection with copies of the covered work
|
||||||
|
conveyed by you (or copies made from those copies), or (b) primarily
|
||||||
|
for and in connection with specific products or compilations that
|
||||||
|
contain the covered work, unless you entered into that arrangement,
|
||||||
|
or that patent license was granted, prior to 28 March 2007.
|
||||||
|
|
||||||
|
Nothing in this License shall be construed as excluding or limiting
|
||||||
|
any implied license or other defenses to infringement that may
|
||||||
|
otherwise be available to you under applicable patent law.
|
||||||
|
|
||||||
|
12. No Surrender of Others' Freedom.
|
||||||
|
|
||||||
|
If conditions are imposed on you (whether by court order, agreement or
|
||||||
|
otherwise) that contradict the conditions of this License, they do not
|
||||||
|
excuse you from the conditions of this License. If you cannot convey a
|
||||||
|
covered work so as to satisfy simultaneously your obligations under this
|
||||||
|
License and any other pertinent obligations, then as a consequence you may
|
||||||
|
not convey it at all. For example, if you agree to terms that obligate you
|
||||||
|
to collect a royalty for further conveying from those to whom you convey
|
||||||
|
the Program, the only way you could satisfy both those terms and this
|
||||||
|
License would be to refrain entirely from conveying the Program.
|
||||||
|
|
||||||
|
13. Use with the GNU Affero General Public License.
|
||||||
|
|
||||||
|
Notwithstanding any other provision of this License, you have
|
||||||
|
permission to link or combine any covered work with a work licensed
|
||||||
|
under version 3 of the GNU Affero General Public License into a single
|
||||||
|
combined work, and to convey the resulting work. The terms of this
|
||||||
|
License will continue to apply to the part which is the covered work,
|
||||||
|
but the special requirements of the GNU Affero General Public License,
|
||||||
|
section 13, concerning interaction through a network will apply to the
|
||||||
|
combination as such.
|
||||||
|
|
||||||
|
14. Revised Versions of this License.
|
||||||
|
|
||||||
|
The Free Software Foundation may publish revised and/or new versions of
|
||||||
|
the GNU General Public License from time to time. Such new versions will
|
||||||
|
be similar in spirit to the present version, but may differ in detail to
|
||||||
|
address new problems or concerns.
|
||||||
|
|
||||||
|
Each version is given a distinguishing version number. If the
|
||||||
|
Program specifies that a certain numbered version of the GNU General
|
||||||
|
Public License "or any later version" applies to it, you have the
|
||||||
|
option of following the terms and conditions either of that numbered
|
||||||
|
version or of any later version published by the Free Software
|
||||||
|
Foundation. If the Program does not specify a version number of the
|
||||||
|
GNU General Public License, you may choose any version ever published
|
||||||
|
by the Free Software Foundation.
|
||||||
|
|
||||||
|
If the Program specifies that a proxy can decide which future
|
||||||
|
versions of the GNU General Public License can be used, that proxy's
|
||||||
|
public statement of acceptance of a version permanently authorizes you
|
||||||
|
to choose that version for the Program.
|
||||||
|
|
||||||
|
Later license versions may give you additional or different
|
||||||
|
permissions. However, no additional obligations are imposed on any
|
||||||
|
author or copyright holder as a result of your choosing to follow a
|
||||||
|
later version.
|
||||||
|
|
||||||
|
15. Disclaimer of Warranty.
|
||||||
|
|
||||||
|
THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
|
||||||
|
APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
|
||||||
|
HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
|
||||||
|
OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
|
||||||
|
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||||
|
PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
|
||||||
|
IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
|
||||||
|
ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
|
||||||
|
|
||||||
|
16. Limitation of Liability.
|
||||||
|
|
||||||
|
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
|
||||||
|
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
|
||||||
|
THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
|
||||||
|
GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
|
||||||
|
USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
|
||||||
|
DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
|
||||||
|
PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
|
||||||
|
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
|
||||||
|
SUCH DAMAGES.
|
||||||
|
|
||||||
|
17. Interpretation of Sections 15 and 16.
|
||||||
|
|
||||||
|
If the disclaimer of warranty and limitation of liability provided
|
||||||
|
above cannot be given local legal effect according to their terms,
|
||||||
|
reviewing courts shall apply local law that most closely approximates
|
||||||
|
an absolute waiver of all civil liability in connection with the
|
||||||
|
Program, unless a warranty or assumption of liability accompanies a
|
||||||
|
copy of the Program in return for a fee.
|
||||||
|
|
||||||
|
END OF TERMS AND CONDITIONS
|
||||||
|
|
||||||
|
How to Apply These Terms to Your New Programs
|
||||||
|
|
||||||
|
If you develop a new program, and you want it to be of the greatest
|
||||||
|
possible use to the public, the best way to achieve this is to make it
|
||||||
|
free software which everyone can redistribute and change under these terms.
|
||||||
|
|
||||||
|
To do so, attach the following notices to the program. It is safest
|
||||||
|
to attach them to the start of each source file to most effectively
|
||||||
|
state the exclusion of warranty; and each file should have at least
|
||||||
|
the "copyright" line and a pointer to where the full notice is found.
|
||||||
|
|
||||||
|
<one line to give the program's name and a brief idea of what it does.>
|
||||||
|
Copyright (C) <year> <name of author>
|
||||||
|
|
||||||
|
This program is free software: you can redistribute it and/or modify
|
||||||
|
it under the terms of the GNU General Public License as published by
|
||||||
|
the Free Software Foundation, either version 3 of the License, or
|
||||||
|
(at your option) any later version.
|
||||||
|
|
||||||
|
This program is distributed in the hope that it will be useful,
|
||||||
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
GNU General Public License for more details.
|
||||||
|
|
||||||
|
You should have received a copy of the GNU General Public License
|
||||||
|
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||||
|
|
||||||
|
Also add information on how to contact you by electronic and paper mail.
|
||||||
|
|
||||||
|
If the program does terminal interaction, make it output a short
|
||||||
|
notice like this when it starts in an interactive mode:
|
||||||
|
|
||||||
|
<program> Copyright (C) <year> <name of author>
|
||||||
|
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
|
||||||
|
This is free software, and you are welcome to redistribute it
|
||||||
|
under certain conditions; type `show c' for details.
|
||||||
|
|
||||||
|
The hypothetical commands `show w' and `show c' should show the appropriate
|
||||||
|
parts of the General Public License. Of course, your program's commands
|
||||||
|
might be different; for a GUI interface, you would use an "about box".
|
||||||
|
|
||||||
|
You should also get your employer (if you work as a programmer) or school,
|
||||||
|
if any, to sign a "copyright disclaimer" for the program, if necessary.
|
||||||
|
For more information on this, and how to apply and follow the GNU GPL, see
|
||||||
|
<http://www.gnu.org/licenses/>.
|
||||||
|
|
||||||
|
The GNU General Public License does not permit incorporating your program
|
||||||
|
into proprietary programs. If your program is a subroutine library, you
|
||||||
|
may consider it more useful to permit linking proprietary applications with
|
||||||
|
the library. If this is what you want to do, use the GNU Lesser General
|
||||||
|
Public License instead of this License. But first, please read
|
||||||
|
<http://www.gnu.org/philosophy/why-not-lgpl.html>.
|
||||||
|
|
@ -0,0 +1,368 @@
|
||||||
|
Installation Instructions
|
||||||
|
*************************
|
||||||
|
|
||||||
|
Copyright (C) 1994-1996, 1999-2002, 2004-2016 Free Software
|
||||||
|
Foundation, Inc.
|
||||||
|
|
||||||
|
Copying and distribution of this file, with or without modification,
|
||||||
|
are permitted in any medium without royalty provided the copyright
|
||||||
|
notice and this notice are preserved. This file is offered as-is,
|
||||||
|
without warranty of any kind.
|
||||||
|
|
||||||
|
Basic Installation
|
||||||
|
==================
|
||||||
|
|
||||||
|
Briefly, the shell command './configure && make && make install'
|
||||||
|
should configure, build, and install this package. The following
|
||||||
|
more-detailed instructions are generic; see the 'README' file for
|
||||||
|
instructions specific to this package. Some packages provide this
|
||||||
|
'INSTALL' file but do not implement all of the features documented
|
||||||
|
below. The lack of an optional feature in a given package is not
|
||||||
|
necessarily a bug. More recommendations for GNU packages can be found
|
||||||
|
in *note Makefile Conventions: (standards)Makefile Conventions.
|
||||||
|
|
||||||
|
The 'configure' shell script attempts to guess correct values for
|
||||||
|
various system-dependent variables used during compilation. It uses
|
||||||
|
those values to create a 'Makefile' in each directory of the package.
|
||||||
|
It may also create one or more '.h' files containing system-dependent
|
||||||
|
definitions. Finally, it creates a shell script 'config.status' that
|
||||||
|
you can run in the future to recreate the current configuration, and a
|
||||||
|
file 'config.log' containing compiler output (useful mainly for
|
||||||
|
debugging 'configure').
|
||||||
|
|
||||||
|
It can also use an optional file (typically called 'config.cache' and
|
||||||
|
enabled with '--cache-file=config.cache' or simply '-C') that saves the
|
||||||
|
results of its tests to speed up reconfiguring. Caching is disabled by
|
||||||
|
default to prevent problems with accidental use of stale cache files.
|
||||||
|
|
||||||
|
If you need to do unusual things to compile the package, please try
|
||||||
|
to figure out how 'configure' could check whether to do them, and mail
|
||||||
|
diffs or instructions to the address given in the 'README' so they can
|
||||||
|
be considered for the next release. If you are using the cache, and at
|
||||||
|
some point 'config.cache' contains results you don't want to keep, you
|
||||||
|
may remove or edit it.
|
||||||
|
|
||||||
|
The file 'configure.ac' (or 'configure.in') is used to create
|
||||||
|
'configure' by a program called 'autoconf'. You need 'configure.ac' if
|
||||||
|
you want to change it or regenerate 'configure' using a newer version of
|
||||||
|
'autoconf'.
|
||||||
|
|
||||||
|
The simplest way to compile this package is:
|
||||||
|
|
||||||
|
1. 'cd' to the directory containing the package's source code and type
|
||||||
|
'./configure' to configure the package for your system.
|
||||||
|
|
||||||
|
Running 'configure' might take a while. While running, it prints
|
||||||
|
some messages telling which features it is checking for.
|
||||||
|
|
||||||
|
2. Type 'make' to compile the package.
|
||||||
|
|
||||||
|
3. Optionally, type 'make check' to run any self-tests that come with
|
||||||
|
the package, generally using the just-built uninstalled binaries.
|
||||||
|
|
||||||
|
4. Type 'make install' to install the programs and any data files and
|
||||||
|
documentation. When installing into a prefix owned by root, it is
|
||||||
|
recommended that the package be configured and built as a regular
|
||||||
|
user, and only the 'make install' phase executed with root
|
||||||
|
privileges.
|
||||||
|
|
||||||
|
5. Optionally, type 'make installcheck' to repeat any self-tests, but
|
||||||
|
this time using the binaries in their final installed location.
|
||||||
|
This target does not install anything. Running this target as a
|
||||||
|
regular user, particularly if the prior 'make install' required
|
||||||
|
root privileges, verifies that the installation completed
|
||||||
|
correctly.
|
||||||
|
|
||||||
|
6. You can remove the program binaries and object files from the
|
||||||
|
source code directory by typing 'make clean'. To also remove the
|
||||||
|
files that 'configure' created (so you can compile the package for
|
||||||
|
a different kind of computer), type 'make distclean'. There is
|
||||||
|
also a 'make maintainer-clean' target, but that is intended mainly
|
||||||
|
for the package's developers. If you use it, you may have to get
|
||||||
|
all sorts of other programs in order to regenerate files that came
|
||||||
|
with the distribution.
|
||||||
|
|
||||||
|
7. Often, you can also type 'make uninstall' to remove the installed
|
||||||
|
files again. In practice, not all packages have tested that
|
||||||
|
uninstallation works correctly, even though it is required by the
|
||||||
|
GNU Coding Standards.
|
||||||
|
|
||||||
|
8. Some packages, particularly those that use Automake, provide 'make
|
||||||
|
distcheck', which can by used by developers to test that all other
|
||||||
|
targets like 'make install' and 'make uninstall' work correctly.
|
||||||
|
This target is generally not run by end users.
|
||||||
|
|
||||||
|
Compilers and Options
|
||||||
|
=====================
|
||||||
|
|
||||||
|
Some systems require unusual options for compilation or linking that
|
||||||
|
the 'configure' script does not know about. Run './configure --help'
|
||||||
|
for details on some of the pertinent environment variables.
|
||||||
|
|
||||||
|
You can give 'configure' initial values for configuration parameters
|
||||||
|
by setting variables in the command line or in the environment. Here is
|
||||||
|
an example:
|
||||||
|
|
||||||
|
./configure CC=c99 CFLAGS=-g LIBS=-lposix
|
||||||
|
|
||||||
|
*Note Defining Variables::, for more details.
|
||||||
|
|
||||||
|
Compiling For Multiple Architectures
|
||||||
|
====================================
|
||||||
|
|
||||||
|
You can compile the package for more than one kind of computer at the
|
||||||
|
same time, by placing the object files for each architecture in their
|
||||||
|
own directory. To do this, you can use GNU 'make'. 'cd' to the
|
||||||
|
directory where you want the object files and executables to go and run
|
||||||
|
the 'configure' script. 'configure' automatically checks for the source
|
||||||
|
code in the directory that 'configure' is in and in '..'. This is known
|
||||||
|
as a "VPATH" build.
|
||||||
|
|
||||||
|
With a non-GNU 'make', it is safer to compile the package for one
|
||||||
|
architecture at a time in the source code directory. After you have
|
||||||
|
installed the package for one architecture, use 'make distclean' before
|
||||||
|
reconfiguring for another architecture.
|
||||||
|
|
||||||
|
On MacOS X 10.5 and later systems, you can create libraries and
|
||||||
|
executables that work on multiple system types--known as "fat" or
|
||||||
|
"universal" binaries--by specifying multiple '-arch' options to the
|
||||||
|
compiler but only a single '-arch' option to the preprocessor. Like
|
||||||
|
this:
|
||||||
|
|
||||||
|
./configure CC="gcc -arch i386 -arch x86_64 -arch ppc -arch ppc64" \
|
||||||
|
CXX="g++ -arch i386 -arch x86_64 -arch ppc -arch ppc64" \
|
||||||
|
CPP="gcc -E" CXXCPP="g++ -E"
|
||||||
|
|
||||||
|
This is not guaranteed to produce working output in all cases, you
|
||||||
|
may have to build one architecture at a time and combine the results
|
||||||
|
using the 'lipo' tool if you have problems.
|
||||||
|
|
||||||
|
Installation Names
|
||||||
|
==================
|
||||||
|
|
||||||
|
By default, 'make install' installs the package's commands under
|
||||||
|
'/usr/local/bin', include files under '/usr/local/include', etc. You
|
||||||
|
can specify an installation prefix other than '/usr/local' by giving
|
||||||
|
'configure' the option '--prefix=PREFIX', where PREFIX must be an
|
||||||
|
absolute file name.
|
||||||
|
|
||||||
|
You can specify separate installation prefixes for
|
||||||
|
architecture-specific files and architecture-independent files. If you
|
||||||
|
pass the option '--exec-prefix=PREFIX' to 'configure', the package uses
|
||||||
|
PREFIX as the prefix for installing programs and libraries.
|
||||||
|
Documentation and other data files still use the regular prefix.
|
||||||
|
|
||||||
|
In addition, if you use an unusual directory layout you can give
|
||||||
|
options like '--bindir=DIR' to specify different values for particular
|
||||||
|
kinds of files. Run 'configure --help' for a list of the directories
|
||||||
|
you can set and what kinds of files go in them. In general, the default
|
||||||
|
for these options is expressed in terms of '${prefix}', so that
|
||||||
|
specifying just '--prefix' will affect all of the other directory
|
||||||
|
specifications that were not explicitly provided.
|
||||||
|
|
||||||
|
The most portable way to affect installation locations is to pass the
|
||||||
|
correct locations to 'configure'; however, many packages provide one or
|
||||||
|
both of the following shortcuts of passing variable assignments to the
|
||||||
|
'make install' command line to change installation locations without
|
||||||
|
having to reconfigure or recompile.
|
||||||
|
|
||||||
|
The first method involves providing an override variable for each
|
||||||
|
affected directory. For example, 'make install
|
||||||
|
prefix=/alternate/directory' will choose an alternate location for all
|
||||||
|
directory configuration variables that were expressed in terms of
|
||||||
|
'${prefix}'. Any directories that were specified during 'configure',
|
||||||
|
but not in terms of '${prefix}', must each be overridden at install time
|
||||||
|
for the entire installation to be relocated. The approach of makefile
|
||||||
|
variable overrides for each directory variable is required by the GNU
|
||||||
|
Coding Standards, and ideally causes no recompilation. However, some
|
||||||
|
platforms have known limitations with the semantics of shared libraries
|
||||||
|
that end up requiring recompilation when using this method, particularly
|
||||||
|
noticeable in packages that use GNU Libtool.
|
||||||
|
|
||||||
|
The second method involves providing the 'DESTDIR' variable. For
|
||||||
|
example, 'make install DESTDIR=/alternate/directory' will prepend
|
||||||
|
'/alternate/directory' before all installation names. The approach of
|
||||||
|
'DESTDIR' overrides is not required by the GNU Coding Standards, and
|
||||||
|
does not work on platforms that have drive letters. On the other hand,
|
||||||
|
it does better at avoiding recompilation issues, and works well even
|
||||||
|
when some directory options were not specified in terms of '${prefix}'
|
||||||
|
at 'configure' time.
|
||||||
|
|
||||||
|
Optional Features
|
||||||
|
=================
|
||||||
|
|
||||||
|
If the package supports it, you can cause programs to be installed
|
||||||
|
with an extra prefix or suffix on their names by giving 'configure' the
|
||||||
|
option '--program-prefix=PREFIX' or '--program-suffix=SUFFIX'.
|
||||||
|
|
||||||
|
Some packages pay attention to '--enable-FEATURE' options to
|
||||||
|
'configure', where FEATURE indicates an optional part of the package.
|
||||||
|
They may also pay attention to '--with-PACKAGE' options, where PACKAGE
|
||||||
|
is something like 'gnu-as' or 'x' (for the X Window System). The
|
||||||
|
'README' should mention any '--enable-' and '--with-' options that the
|
||||||
|
package recognizes.
|
||||||
|
|
||||||
|
For packages that use the X Window System, 'configure' can usually
|
||||||
|
find the X include and library files automatically, but if it doesn't,
|
||||||
|
you can use the 'configure' options '--x-includes=DIR' and
|
||||||
|
'--x-libraries=DIR' to specify their locations.
|
||||||
|
|
||||||
|
Some packages offer the ability to configure how verbose the
|
||||||
|
execution of 'make' will be. For these packages, running './configure
|
||||||
|
--enable-silent-rules' sets the default to minimal output, which can be
|
||||||
|
overridden with 'make V=1'; while running './configure
|
||||||
|
--disable-silent-rules' sets the default to verbose, which can be
|
||||||
|
overridden with 'make V=0'.
|
||||||
|
|
||||||
|
Particular systems
|
||||||
|
==================
|
||||||
|
|
||||||
|
On HP-UX, the default C compiler is not ANSI C compatible. If GNU CC
|
||||||
|
is not installed, it is recommended to use the following options in
|
||||||
|
order to use an ANSI C compiler:
|
||||||
|
|
||||||
|
./configure CC="cc -Ae -D_XOPEN_SOURCE=500"
|
||||||
|
|
||||||
|
and if that doesn't work, install pre-built binaries of GCC for HP-UX.
|
||||||
|
|
||||||
|
HP-UX 'make' updates targets which have the same time stamps as their
|
||||||
|
prerequisites, which makes it generally unusable when shipped generated
|
||||||
|
files such as 'configure' are involved. Use GNU 'make' instead.
|
||||||
|
|
||||||
|
On OSF/1 a.k.a. Tru64, some versions of the default C compiler cannot
|
||||||
|
parse its '<wchar.h>' header file. The option '-nodtk' can be used as a
|
||||||
|
workaround. If GNU CC is not installed, it is therefore recommended to
|
||||||
|
try
|
||||||
|
|
||||||
|
./configure CC="cc"
|
||||||
|
|
||||||
|
and if that doesn't work, try
|
||||||
|
|
||||||
|
./configure CC="cc -nodtk"
|
||||||
|
|
||||||
|
On Solaris, don't put '/usr/ucb' early in your 'PATH'. This
|
||||||
|
directory contains several dysfunctional programs; working variants of
|
||||||
|
these programs are available in '/usr/bin'. So, if you need '/usr/ucb'
|
||||||
|
in your 'PATH', put it _after_ '/usr/bin'.
|
||||||
|
|
||||||
|
On Haiku, software installed for all users goes in '/boot/common',
|
||||||
|
not '/usr/local'. It is recommended to use the following options:
|
||||||
|
|
||||||
|
./configure --prefix=/boot/common
|
||||||
|
|
||||||
|
Specifying the System Type
|
||||||
|
==========================
|
||||||
|
|
||||||
|
There may be some features 'configure' cannot figure out
|
||||||
|
automatically, but needs to determine by the type of machine the package
|
||||||
|
will run on. Usually, assuming the package is built to be run on the
|
||||||
|
_same_ architectures, 'configure' can figure that out, but if it prints
|
||||||
|
a message saying it cannot guess the machine type, give it the
|
||||||
|
'--build=TYPE' option. TYPE can either be a short name for the system
|
||||||
|
type, such as 'sun4', or a canonical name which has the form:
|
||||||
|
|
||||||
|
CPU-COMPANY-SYSTEM
|
||||||
|
|
||||||
|
where SYSTEM can have one of these forms:
|
||||||
|
|
||||||
|
OS
|
||||||
|
KERNEL-OS
|
||||||
|
|
||||||
|
See the file 'config.sub' for the possible values of each field. If
|
||||||
|
'config.sub' isn't included in this package, then this package doesn't
|
||||||
|
need to know the machine type.
|
||||||
|
|
||||||
|
If you are _building_ compiler tools for cross-compiling, you should
|
||||||
|
use the option '--target=TYPE' to select the type of system they will
|
||||||
|
produce code for.
|
||||||
|
|
||||||
|
If you want to _use_ a cross compiler, that generates code for a
|
||||||
|
platform different from the build platform, you should specify the
|
||||||
|
"host" platform (i.e., that on which the generated programs will
|
||||||
|
eventually be run) with '--host=TYPE'.
|
||||||
|
|
||||||
|
Sharing Defaults
|
||||||
|
================
|
||||||
|
|
||||||
|
If you want to set default values for 'configure' scripts to share,
|
||||||
|
you can create a site shell script called 'config.site' that gives
|
||||||
|
default values for variables like 'CC', 'cache_file', and 'prefix'.
|
||||||
|
'configure' looks for 'PREFIX/share/config.site' if it exists, then
|
||||||
|
'PREFIX/etc/config.site' if it exists. Or, you can set the
|
||||||
|
'CONFIG_SITE' environment variable to the location of the site script.
|
||||||
|
A warning: not all 'configure' scripts look for a site script.
|
||||||
|
|
||||||
|
Defining Variables
|
||||||
|
==================
|
||||||
|
|
||||||
|
Variables not defined in a site shell script can be set in the
|
||||||
|
environment passed to 'configure'. However, some packages may run
|
||||||
|
configure again during the build, and the customized values of these
|
||||||
|
variables may be lost. In order to avoid this problem, you should set
|
||||||
|
them in the 'configure' command line, using 'VAR=value'. For example:
|
||||||
|
|
||||||
|
./configure CC=/usr/local2/bin/gcc
|
||||||
|
|
||||||
|
causes the specified 'gcc' to be used as the C compiler (unless it is
|
||||||
|
overridden in the site shell script).
|
||||||
|
|
||||||
|
Unfortunately, this technique does not work for 'CONFIG_SHELL' due to an
|
||||||
|
Autoconf limitation. Until the limitation is lifted, you can use this
|
||||||
|
workaround:
|
||||||
|
|
||||||
|
CONFIG_SHELL=/bin/bash ./configure CONFIG_SHELL=/bin/bash
|
||||||
|
|
||||||
|
'configure' Invocation
|
||||||
|
======================
|
||||||
|
|
||||||
|
'configure' recognizes the following options to control how it
|
||||||
|
operates.
|
||||||
|
|
||||||
|
'--help'
|
||||||
|
'-h'
|
||||||
|
Print a summary of all of the options to 'configure', and exit.
|
||||||
|
|
||||||
|
'--help=short'
|
||||||
|
'--help=recursive'
|
||||||
|
Print a summary of the options unique to this package's
|
||||||
|
'configure', and exit. The 'short' variant lists options used only
|
||||||
|
in the top level, while the 'recursive' variant lists options also
|
||||||
|
present in any nested packages.
|
||||||
|
|
||||||
|
'--version'
|
||||||
|
'-V'
|
||||||
|
Print the version of Autoconf used to generate the 'configure'
|
||||||
|
script, and exit.
|
||||||
|
|
||||||
|
'--cache-file=FILE'
|
||||||
|
Enable the cache: use and save the results of the tests in FILE,
|
||||||
|
traditionally 'config.cache'. FILE defaults to '/dev/null' to
|
||||||
|
disable caching.
|
||||||
|
|
||||||
|
'--config-cache'
|
||||||
|
'-C'
|
||||||
|
Alias for '--cache-file=config.cache'.
|
||||||
|
|
||||||
|
'--quiet'
|
||||||
|
'--silent'
|
||||||
|
'-q'
|
||||||
|
Do not print messages saying which checks are being made. To
|
||||||
|
suppress all normal output, redirect it to '/dev/null' (any error
|
||||||
|
messages will still be shown).
|
||||||
|
|
||||||
|
'--srcdir=DIR'
|
||||||
|
Look for the package's source code in directory DIR. Usually
|
||||||
|
'configure' can determine that directory automatically.
|
||||||
|
|
||||||
|
'--prefix=DIR'
|
||||||
|
Use DIR as the installation prefix. *note Installation Names:: for
|
||||||
|
more details, including other options available for fine-tuning the
|
||||||
|
installation locations.
|
||||||
|
|
||||||
|
'--no-create'
|
||||||
|
'-n'
|
||||||
|
Run the configure checks, but stop before creating any output
|
||||||
|
files.
|
||||||
|
|
||||||
|
'configure' also accepts some other, not widely useful, options. Run
|
||||||
|
'configure --help' for more details.
|
||||||
|
|
@ -0,0 +1,6 @@
|
||||||
|
SUBDIRS = src
|
||||||
|
|
||||||
|
#ACLOCAL_AMFLAGS = -I m4
|
||||||
|
|
||||||
|
#EXTRA_DIST = build-aux/config.rpath
|
||||||
|
|
||||||
|
|
@ -0,0 +1,76 @@
|
||||||
|
AC_INIT([pop-c], [0.1.0], [], [pop_c])
|
||||||
|
|
||||||
|
AC_REVISION([Revision 1])
|
||||||
|
|
||||||
|
AC_CONFIG_AUX_DIR([build-aux])
|
||||||
|
|
||||||
|
AC_CONFIG_MACRO_DIR([m4])
|
||||||
|
# We need automake
|
||||||
|
AM_INIT_AUTOMAKE([-Wall -Werror])
|
||||||
|
|
||||||
|
AM_PROG_AR
|
||||||
|
|
||||||
|
AC_CONFIG_SRCDIR([src/pop.c])
|
||||||
|
|
||||||
|
LT_INIT
|
||||||
|
|
||||||
|
# For debian systems, /usr as default
|
||||||
|
AC_PREFIX_DEFAULT([/usr])
|
||||||
|
|
||||||
|
# We need Gcc
|
||||||
|
AC_PROG_CC
|
||||||
|
# We need OBJC, for MAC
|
||||||
|
AC_PROG_OBJC
|
||||||
|
|
||||||
|
|
||||||
|
# Translate this program
|
||||||
|
#AM_GNU_GETTEXT_VERSION([0.19.3])
|
||||||
|
#AM_GNU_GETTEXT([external])
|
||||||
|
|
||||||
|
ALL_LINGUAS=""
|
||||||
|
AC_SUBST(ALL_LINGUAS)
|
||||||
|
|
||||||
|
AM_PROG_CC_C_O
|
||||||
|
|
||||||
|
# Revisar el host
|
||||||
|
AC_CANONICAL_HOST
|
||||||
|
|
||||||
|
case $host_os in
|
||||||
|
*mingw32* ) MINGW32=yes;;
|
||||||
|
* ) MINGW32=no;;
|
||||||
|
esac
|
||||||
|
case $host_os in
|
||||||
|
*cygwin* ) CYGWIN=yes;;
|
||||||
|
* ) CYGWIN=no;;
|
||||||
|
esac
|
||||||
|
case $host_os in
|
||||||
|
*linux* ) LINUX=yes;;
|
||||||
|
* ) LINUX=no;;
|
||||||
|
esac
|
||||||
|
case $host_os in
|
||||||
|
*darwin* ) MACOSX=yes;;
|
||||||
|
* ) MACOSX=no;;
|
||||||
|
esac
|
||||||
|
|
||||||
|
AM_CONDITIONAL(MINGW32, test x$MINGW32 = xyes)
|
||||||
|
AM_CONDITIONAL(LINUX, test x$LINUX = xyes)
|
||||||
|
AM_CONDITIONAL(MACOSX, test x$MACOSX = xyes)
|
||||||
|
|
||||||
|
# Check for pkg-config
|
||||||
|
#PKG_PROG_PKG_CONFIG
|
||||||
|
|
||||||
|
#OPENSSL_VERSION=0.9.8
|
||||||
|
|
||||||
|
#AC_MSG_CHECKING([if you have openssl installed on your system])
|
||||||
|
#PKG_CHECK_EXISTS([openssl >= $OPENSSL_VERSION], [AC_MSG_RESULT([yes])], [AC_MSG_FAILURE([openssl not found in your system])])
|
||||||
|
#PKG_CHECK_MODULES(OPENSSL, [openssl >= $OPENSSL_VERSION], [], [])
|
||||||
|
|
||||||
|
AC_CONFIG_HEADERS([config.h])
|
||||||
|
|
||||||
|
AC_CONFIG_FILES([
|
||||||
|
Makefile
|
||||||
|
src/Makefile
|
||||||
|
src/pop-c.pc
|
||||||
|
])
|
||||||
|
|
||||||
|
AC_OUTPUT
|
||||||
|
|
@ -0,0 +1,18 @@
|
||||||
|
# Automake file for pop-c
|
||||||
|
|
||||||
|
lib_LTLIBRARIES = libpopc.la
|
||||||
|
|
||||||
|
libpopc_la_SOURCES = pop.c pop.h
|
||||||
|
|
||||||
|
#libpopc_la_CFLAGS = $(OPENSSL_CFLAGS)
|
||||||
|
#libpopc_la_LDFLAGS = $(OPENSSL_LIBS) -version-info 0:1:0 -no-undefined -export-symbols $(srcdir)/libpopc.sym
|
||||||
|
libpopc_la_LDFLAGS = -version-info 0:1:0 -no-undefined -export-symbols $(srcdir)/libpopc.sym
|
||||||
|
libpopc_la_DEPENDENCIES = libpopc.sym
|
||||||
|
libpopcdir = $(includedir)/libpop_c/pop_c
|
||||||
|
libpopc_HEADERS = pop.h
|
||||||
|
|
||||||
|
pkgconfigdir = $(libdir)/pkgconfig
|
||||||
|
dist_pkgconfig_DATA = pop-c.pc
|
||||||
|
|
||||||
|
EXTRA_DIST = libpopc.sym
|
||||||
|
|
||||||
|
|
@ -0,0 +1,156 @@
|
||||||
|
/*
|
||||||
|
* Base64 encoding/decoding (RFC1341)
|
||||||
|
* Copyright (c) 2005-2011, Jouni Malinen <j@w1.fi>
|
||||||
|
*
|
||||||
|
* This software may be distributed under the terms of the BSD license.
|
||||||
|
* See README for more details.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include <stdio.h>
|
||||||
|
#include <stdlib.h>
|
||||||
|
#include <string.h>
|
||||||
|
|
||||||
|
#include "base64.h"
|
||||||
|
|
||||||
|
static const unsigned char base64_table[65] =
|
||||||
|
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
|
||||||
|
|
||||||
|
/**
|
||||||
|
* base64_encode - Base64 encode
|
||||||
|
* @src: Data to be encoded
|
||||||
|
* @len: Length of the data to be encoded
|
||||||
|
* @out_len: Pointer to output length variable, or %NULL if not used
|
||||||
|
* Returns: Allocated buffer of out_len bytes of encoded data,
|
||||||
|
* or %NULL on failure
|
||||||
|
*
|
||||||
|
* Caller is responsible for freeing the returned buffer. Returned buffer is
|
||||||
|
* nul terminated to make it easier to use as a C string. The nul terminator is
|
||||||
|
* not included in out_len.
|
||||||
|
*/
|
||||||
|
unsigned char * base64_encode(const unsigned char *src, size_t len,
|
||||||
|
size_t *out_len)
|
||||||
|
{
|
||||||
|
unsigned char *out, *pos;
|
||||||
|
const unsigned char *end, *in;
|
||||||
|
size_t olen;
|
||||||
|
int line_len;
|
||||||
|
|
||||||
|
olen = len * 4 / 3 + 4; /* 3-byte blocks to 4-byte */
|
||||||
|
olen += olen / 72; /* line feeds */
|
||||||
|
olen++; /* nul termination */
|
||||||
|
if (olen < len)
|
||||||
|
return NULL; /* integer overflow */
|
||||||
|
out = (unsigned char *) malloc(sizeof (unsigned char) * olen);
|
||||||
|
if (out == NULL)
|
||||||
|
return NULL;
|
||||||
|
|
||||||
|
end = src + len;
|
||||||
|
in = src;
|
||||||
|
pos = out;
|
||||||
|
line_len = 0;
|
||||||
|
while (end - in >= 3) {
|
||||||
|
*pos++ = base64_table[in[0] >> 2];
|
||||||
|
*pos++ = base64_table[((in[0] & 0x03) << 4) | (in[1] >> 4)];
|
||||||
|
*pos++ = base64_table[((in[1] & 0x0f) << 2) | (in[2] >> 6)];
|
||||||
|
*pos++ = base64_table[in[2] & 0x3f];
|
||||||
|
in += 3;
|
||||||
|
line_len += 4;
|
||||||
|
if (line_len >= 72) {
|
||||||
|
*pos++ = 0;
|
||||||
|
line_len = 0;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if (end - in) {
|
||||||
|
*pos++ = base64_table[in[0] >> 2];
|
||||||
|
if (end - in == 1) {
|
||||||
|
*pos++ = base64_table[(in[0] & 0x03) << 4];
|
||||||
|
*pos++ = '=';
|
||||||
|
} else {
|
||||||
|
*pos++ = base64_table[((in[0] & 0x03) << 4) |
|
||||||
|
(in[1] >> 4)];
|
||||||
|
*pos++ = base64_table[(in[1] & 0x0f) << 2];
|
||||||
|
}
|
||||||
|
*pos++ = '=';
|
||||||
|
line_len += 4;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (line_len)
|
||||||
|
*pos++ = 0;
|
||||||
|
|
||||||
|
*pos = '\0';
|
||||||
|
if (out_len)
|
||||||
|
*out_len = pos - out;
|
||||||
|
return out;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/**
|
||||||
|
* base64_decode - Base64 decode
|
||||||
|
* @src: Data to be decoded
|
||||||
|
* @len: Length of the data to be decoded
|
||||||
|
* @out_len: Pointer to output length variable
|
||||||
|
* Returns: Allocated buffer of out_len bytes of decoded data,
|
||||||
|
* or %NULL on failure
|
||||||
|
*
|
||||||
|
* Caller is responsible for freeing the returned buffer.
|
||||||
|
*/
|
||||||
|
unsigned char * base64_decode(const unsigned char *src, size_t len,
|
||||||
|
size_t *out_len)
|
||||||
|
{
|
||||||
|
unsigned char dtable[256], *out, *pos, block[4], tmp;
|
||||||
|
size_t i, count, olen;
|
||||||
|
int pad = 0;
|
||||||
|
|
||||||
|
memset (dtable, 0x80, 256);
|
||||||
|
for (i = 0; i < sizeof(base64_table) - 1; i++)
|
||||||
|
dtable[base64_table[i]] = (unsigned char) i;
|
||||||
|
dtable['='] = 0;
|
||||||
|
|
||||||
|
count = 0;
|
||||||
|
for (i = 0; i < len; i++) {
|
||||||
|
if (dtable[src[i]] != 0x80)
|
||||||
|
count++;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (count == 0 || count % 4)
|
||||||
|
return NULL;
|
||||||
|
|
||||||
|
olen = count / 4 * 3;
|
||||||
|
pos = out = (unsigned char *) malloc (sizeof (unsigned char) * olen);
|
||||||
|
if (out == NULL)
|
||||||
|
return NULL;
|
||||||
|
|
||||||
|
count = 0;
|
||||||
|
for (i = 0; i < len; i++) {
|
||||||
|
tmp = dtable[src[i]];
|
||||||
|
if (tmp == 0x80)
|
||||||
|
continue;
|
||||||
|
|
||||||
|
if (src[i] == '=')
|
||||||
|
pad++;
|
||||||
|
block[count] = tmp;
|
||||||
|
count++;
|
||||||
|
if (count == 4) {
|
||||||
|
*pos++ = (block[0] << 2) | (block[1] >> 4);
|
||||||
|
*pos++ = (block[1] << 4) | (block[2] >> 2);
|
||||||
|
*pos++ = (block[2] << 6) | block[3];
|
||||||
|
count = 0;
|
||||||
|
if (pad) {
|
||||||
|
if (pad == 1)
|
||||||
|
pos--;
|
||||||
|
else if (pad == 2)
|
||||||
|
pos -= 2;
|
||||||
|
else {
|
||||||
|
/* Invalid padding */
|
||||||
|
free(out);
|
||||||
|
return NULL;
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
*out_len = pos - out;
|
||||||
|
return out;
|
||||||
|
}
|
||||||
|
|
@ -0,0 +1,11 @@
|
||||||
|
#ifndef __BASE64_H__
|
||||||
|
#define __BASE64_H__
|
||||||
|
|
||||||
|
#include <stdio.h>
|
||||||
|
#include <stdlib.h>
|
||||||
|
#include <string.h>
|
||||||
|
|
||||||
|
unsigned char * base64_encode(const unsigned char *src, size_t len, size_t *out_len);
|
||||||
|
|
||||||
|
#endif /* __BASE64_H__ */
|
||||||
|
|
||||||
|
|
@ -0,0 +1,14 @@
|
||||||
|
pop_session_create
|
||||||
|
pop_session_auth_login
|
||||||
|
pop_session_connect
|
||||||
|
pop_session_close_and_clean
|
||||||
|
pop_session_send_command
|
||||||
|
pop_session_send_close
|
||||||
|
pop_session_continue
|
||||||
|
pop_session_get_state
|
||||||
|
pop_session_get_poll
|
||||||
|
pop_session_get_socket
|
||||||
|
pop_session_get_last_code
|
||||||
|
pop_session_get_last_message
|
||||||
|
pop_session_free
|
||||||
|
pop_session_data_func
|
||||||
|
|
@ -0,0 +1,11 @@
|
||||||
|
prefix=@prefix@
|
||||||
|
exec_prefix=@exec_prefix@
|
||||||
|
libdir=@libdir@
|
||||||
|
includedir=@includedir@
|
||||||
|
|
||||||
|
Name: POP-C Library
|
||||||
|
Description: Client Library for doing async POP client commands
|
||||||
|
Version: @VERSION@
|
||||||
|
Libs: -L${libdir} -lpopc
|
||||||
|
#Requires.private: openssl >= 0.9.8
|
||||||
|
Cflags: -I${includedir}/libpop_c
|
||||||
|
|
@ -0,0 +1,735 @@
|
||||||
|
/*
|
||||||
|
* pop.c
|
||||||
|
* This file is part of LibPOPc
|
||||||
|
*
|
||||||
|
* Copyright (C) 2022 - Félix Arreola Rodríguez
|
||||||
|
*
|
||||||
|
* LibPOPc is free software; you can redistribute it and/or modify
|
||||||
|
* it under the terms of the GNU General Public License as published by
|
||||||
|
* the Free Software Foundation; either version 2 of the License, or
|
||||||
|
* (at your option) any later version.
|
||||||
|
*
|
||||||
|
* LibPOPc is distributed in the hope that it will be useful,
|
||||||
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
* GNU General Public License for more details.
|
||||||
|
*
|
||||||
|
* You should have received a copy of the GNU General Public License
|
||||||
|
* along with LibPOPc; if not, write to the Free Software
|
||||||
|
* Foundation, Inc., 51 Franklin St, Fifth Floor,
|
||||||
|
* Boston, MA 02110-1301 USA
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include <stdio.h>
|
||||||
|
#include <stdlib.h>
|
||||||
|
#include <string.h>
|
||||||
|
|
||||||
|
#include <unistd.h>
|
||||||
|
#include <fcntl.h>
|
||||||
|
|
||||||
|
#include <sys/types.h>
|
||||||
|
#include <sys/socket.h>
|
||||||
|
#include <netdb.h>
|
||||||
|
|
||||||
|
#include <errno.h>
|
||||||
|
#include <ctype.h>
|
||||||
|
|
||||||
|
#include "pop.h"
|
||||||
|
|
||||||
|
#define POP_WANT_FLAGS_OR_POLL(var, flags, poll) \
|
||||||
|
do { \
|
||||||
|
if ((var & flags) == 0) { \
|
||||||
|
poll = flags; \
|
||||||
|
return POP_POLL; \
|
||||||
|
} \
|
||||||
|
} while (0)
|
||||||
|
|
||||||
|
enum {
|
||||||
|
POP_LINE_INVALID = 0,
|
||||||
|
POP_LINE_OK,
|
||||||
|
POP_LINE_ERR
|
||||||
|
};
|
||||||
|
|
||||||
|
enum {
|
||||||
|
POP_INTERNAL_FREE = 0,
|
||||||
|
POP_INTERNAL_WRITE,
|
||||||
|
POP_INTERNAL_READ,
|
||||||
|
};
|
||||||
|
|
||||||
|
struct _POPSession {
|
||||||
|
/* El socket de datos */
|
||||||
|
int sock;
|
||||||
|
|
||||||
|
/* Estado de la sessión en general */
|
||||||
|
int estado;
|
||||||
|
|
||||||
|
/* Estado interno, lectura, escritura */
|
||||||
|
int internal;
|
||||||
|
|
||||||
|
/* Variable que controla el poller */
|
||||||
|
int poll;
|
||||||
|
|
||||||
|
/* La conexión con el servidor */
|
||||||
|
struct sockaddr_storage server;
|
||||||
|
|
||||||
|
/* El buffer de lectura de la red */
|
||||||
|
char read_buffer[8192];
|
||||||
|
size_t read_count;
|
||||||
|
int ceof;
|
||||||
|
|
||||||
|
/* Bandera que me indica si el último comando que ejecutamos esperamos multi-lineas */
|
||||||
|
int waiting_multiline;
|
||||||
|
|
||||||
|
char *user;
|
||||||
|
char *passwd;
|
||||||
|
int last_code;
|
||||||
|
char last_cmd[8192];
|
||||||
|
char last_message[1024];
|
||||||
|
|
||||||
|
/* El stream que usaremos para recibir un correo */
|
||||||
|
FILE *data_stream;
|
||||||
|
|
||||||
|
/* Función para llamar cuando lea entre lineas */
|
||||||
|
POPDataFunc line_func;
|
||||||
|
void *line_func_data;
|
||||||
|
};
|
||||||
|
|
||||||
|
int _pop_session_internal_connect_cont (POPSession *session);
|
||||||
|
int _pop_session_internal_banner_code (POPSession *session);
|
||||||
|
int _pop_session_internal_send_helo (POPSession *session);
|
||||||
|
int _pop_session_internal_helo_code (POPSession *session);
|
||||||
|
int _pop_session_internal_start_auth_login (POPSession *session);
|
||||||
|
int _pop_session_internal_auth_login_code (POPSession *session);
|
||||||
|
int _pop_session_internal_send_user (POPSession *session);
|
||||||
|
int _pop_session_internal_user_code (POPSession *session);
|
||||||
|
int _pop_session_internal_send_pass (POPSession *session);
|
||||||
|
int _pop_session_internal_pass_code (POPSession *session);
|
||||||
|
int _pop_session_internal_send_cmd (POPSession *session);
|
||||||
|
int _pop_session_internal_cmd_code (POPSession *session);
|
||||||
|
int _pop_session_internal_send_close (POPSession *session);
|
||||||
|
int _pop_session_internal_close_code (POPSession *session);
|
||||||
|
int _pop_session_internal_send_data (POPSession *session);
|
||||||
|
int _pop_session_internal_data_code (POPSession *session);
|
||||||
|
int _pop_session_internal_data_write_finish (POPSession *session);
|
||||||
|
int _pop_session_internal_data_write (POPSession *session);
|
||||||
|
|
||||||
|
int pop_session_read_bytes (POPSession *session);
|
||||||
|
int pop_session_readline (POPSession *session, char *buffer, int max);
|
||||||
|
int _pop_session_validate_response_line (POPSession *session, char *buffer, int size);
|
||||||
|
|
||||||
|
POPSession *pop_session_create (void) {
|
||||||
|
POPSession *pop;
|
||||||
|
|
||||||
|
pop = (POPSession *) malloc (sizeof (POPSession));
|
||||||
|
|
||||||
|
if (pop == NULL) return NULL;
|
||||||
|
|
||||||
|
memset (pop, 0, sizeof (POPSession));
|
||||||
|
|
||||||
|
pop->sock = -1;
|
||||||
|
|
||||||
|
return pop;
|
||||||
|
}
|
||||||
|
|
||||||
|
void pop_session_free (POPSession *session) {
|
||||||
|
pop_session_close_and_clean (session);
|
||||||
|
|
||||||
|
free (session);
|
||||||
|
}
|
||||||
|
|
||||||
|
void pop_session_close_and_clean (POPSession *session) {
|
||||||
|
if (session->user != NULL) {
|
||||||
|
free (session->user);
|
||||||
|
session->user = NULL;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (session->passwd != NULL) {
|
||||||
|
free (session->passwd);
|
||||||
|
session->passwd = NULL;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (session->sock >= 0) {
|
||||||
|
close (session->sock);
|
||||||
|
session->sock = -1;
|
||||||
|
}
|
||||||
|
|
||||||
|
session->internal = POP_INTERNAL_FREE;
|
||||||
|
session->estado = POP_STATE_CLOSED;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Arreglada
|
||||||
|
int pop_session_connect (POPSession *session, struct sockaddr *server, socklen_t addr_len) {
|
||||||
|
int c;
|
||||||
|
int res;
|
||||||
|
|
||||||
|
session->poll = POP_WANT_NONE;
|
||||||
|
|
||||||
|
c = socket (server->sa_family, SOCK_STREAM, 0);
|
||||||
|
|
||||||
|
if (c < 0) {
|
||||||
|
return POP_ERROR;
|
||||||
|
}
|
||||||
|
|
||||||
|
fcntl (c, F_SETFL, O_NONBLOCK);
|
||||||
|
|
||||||
|
session->estado = POP_STATE_TRYING_CONNECT;
|
||||||
|
memcpy (&session->server, server, addr_len);
|
||||||
|
|
||||||
|
res = connect (c, server, addr_len);
|
||||||
|
|
||||||
|
if (res < 0) {
|
||||||
|
if (errno == EINPROGRESS) {
|
||||||
|
session->sock = c;
|
||||||
|
session->poll = POP_WANT_POLL_OUT;
|
||||||
|
session->internal = POP_INTERNAL_WRITE;
|
||||||
|
session->estado = POP_STATE_TRYING_CONNECT;
|
||||||
|
return POP_POLL;
|
||||||
|
} else {
|
||||||
|
session->sock = -1;
|
||||||
|
close (c);
|
||||||
|
|
||||||
|
return POP_ERROR;
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
/* Conexión exitosa */
|
||||||
|
session->sock = c;
|
||||||
|
session->internal = POP_INTERNAL_READ;
|
||||||
|
session->estado = POP_STATE_BANNER;
|
||||||
|
session->read_count = 0;
|
||||||
|
return pop_session_continue (session, POP_WANT_POLL_IN);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// FIXME:
|
||||||
|
int pop_session_continue (POPSession *session, int what) {
|
||||||
|
char linea[8192];
|
||||||
|
size_t linea_size;
|
||||||
|
int res;
|
||||||
|
int e;
|
||||||
|
int use_short;
|
||||||
|
|
||||||
|
if (session->internal == POP_INTERNAL_FREE) {
|
||||||
|
return POP_ERROR;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (session->internal == POP_INTERNAL_WRITE) {
|
||||||
|
POP_WANT_FLAGS_OR_POLL (what, POP_WANT_POLL_OUT, session->poll);
|
||||||
|
|
||||||
|
/* Se logró el evento esperado */
|
||||||
|
switch (session->estado) {
|
||||||
|
case POP_STATE_TRYING_CONNECT:
|
||||||
|
return _pop_session_internal_connect_cont (session);
|
||||||
|
case POP_STATE_AUTH_LOGIN_USER:
|
||||||
|
return _pop_session_internal_send_user (session);
|
||||||
|
case POP_STATE_AUTH_LOGIN_PASS:
|
||||||
|
return _pop_session_internal_send_pass (session);
|
||||||
|
case POP_STATE_CMD:
|
||||||
|
return _pop_session_internal_send_cmd (session);
|
||||||
|
// FIXME: Arreglar esto
|
||||||
|
case POP_STATE_CLOSING:
|
||||||
|
return _pop_session_internal_send_close (session);
|
||||||
|
}
|
||||||
|
} else if (session->internal == POP_INTERNAL_READ) {
|
||||||
|
POP_WANT_FLAGS_OR_POLL (what, POP_WANT_POLL_IN, session->poll);
|
||||||
|
|
||||||
|
pop_read_a_line_again:
|
||||||
|
/* Leer una linea */
|
||||||
|
linea_size = pop_session_readline (session, linea, sizeof (linea));
|
||||||
|
if (linea_size == POP_POLL) {
|
||||||
|
/* Si al intentar leer, no hay linea, revisar si podemos leer algunos bytes */
|
||||||
|
res = pop_session_read_bytes (session);
|
||||||
|
if (res == POP_ERROR) {
|
||||||
|
pop_session_close_and_clean (session);
|
||||||
|
return POP_ERROR;
|
||||||
|
} else if (res == POP_POLL) {
|
||||||
|
/* No hay bytes, hacer polling */
|
||||||
|
session->poll = POP_WANT_POLL_IN;
|
||||||
|
return POP_POLL;
|
||||||
|
} else if (session->ceof == 1) {
|
||||||
|
/* Cierre de la conexión, limpiar y cerrar */
|
||||||
|
if (session->estado == POP_STATE_CLOSING) {
|
||||||
|
pop_session_close_and_clean (session);
|
||||||
|
return POP_SUCCESS;
|
||||||
|
} else {
|
||||||
|
pop_session_close_and_clean (session);
|
||||||
|
return POP_ERROR;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
/* Con los bytes restantes de la lectura previa, intentar leer la linea */
|
||||||
|
linea_size = pop_session_readline (session, linea, sizeof (linea));
|
||||||
|
}
|
||||||
|
|
||||||
|
if (session->estado == POP_STATE_DATA) {
|
||||||
|
/* Los datos no se validan como linea de respuesta */
|
||||||
|
if ((linea[0] == '.' && linea[1] == 0) ||
|
||||||
|
(linea[0] == '.' && linea[1] == '\n')) {
|
||||||
|
session->estado = POP_STATE_READY;
|
||||||
|
session->internal = POP_INTERNAL_FREE;
|
||||||
|
|
||||||
|
return POP_SUCCESS;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (session->line_func != NULL) {
|
||||||
|
session->line_func (session, linea, session->line_func_data);
|
||||||
|
}
|
||||||
|
goto pop_read_a_line_again;
|
||||||
|
}
|
||||||
|
|
||||||
|
res = _pop_session_validate_response_line (session, linea, linea_size);
|
||||||
|
|
||||||
|
if (res == POP_LINE_INVALID) {
|
||||||
|
/* Esperaba una respuesta +OK o -ERR */
|
||||||
|
pop_session_close_and_clean (session);
|
||||||
|
return POP_ERROR;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Linea buena, guardar el estado y el mensaje de la linea */
|
||||||
|
if (res == POP_LINE_OK) {
|
||||||
|
strncpy (session->last_message, &linea[4], sizeof (session->last_message) - 1);
|
||||||
|
} else {
|
||||||
|
strncpy (session->last_message, &linea[5], sizeof (session->last_message) - 1);
|
||||||
|
}
|
||||||
|
e = strlen (session->last_message) - 1;
|
||||||
|
while (e > 0 && (session->last_message[e] == '\r' || session->last_message[e] == '\n')) {
|
||||||
|
session->last_message[e] = 0;
|
||||||
|
e--;
|
||||||
|
}
|
||||||
|
|
||||||
|
session->last_code = res;
|
||||||
|
/* Correr la función correcta para pasar al siguiente estado */
|
||||||
|
switch (session->estado) {
|
||||||
|
case POP_STATE_BANNER:
|
||||||
|
return _pop_session_internal_banner_code (session);
|
||||||
|
case POP_STATE_AUTH_LOGIN_USER:
|
||||||
|
return _pop_session_internal_user_code (session);
|
||||||
|
case POP_STATE_AUTH_LOGIN_PASS:
|
||||||
|
return _pop_session_internal_pass_code (session);
|
||||||
|
case POP_STATE_CMD:
|
||||||
|
return _pop_session_internal_cmd_code (session);
|
||||||
|
// FIXME: Arreglar esto
|
||||||
|
case POP_STATE_CLOSING:
|
||||||
|
return _pop_session_internal_close_code (session);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Arreglada
|
||||||
|
int _pop_session_validate_response_line (POPSession *session, char *buffer, int size) {
|
||||||
|
int ok_or_err;
|
||||||
|
|
||||||
|
if (size < 3) {
|
||||||
|
return POP_LINE_INVALID;
|
||||||
|
}
|
||||||
|
|
||||||
|
ok_or_err = 0;
|
||||||
|
/* Puede ser un +OK o un -ERR */
|
||||||
|
if (strncmp ("+OK", buffer, 3) == 0) {
|
||||||
|
ok_or_err = 1;
|
||||||
|
} else if (size >= 4 && strncmp ("-ERR", buffer, 4) == 0) {
|
||||||
|
ok_or_err = 2;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (ok_or_err == 0) {
|
||||||
|
return POP_LINE_INVALID;
|
||||||
|
} else if (ok_or_err == 1) {
|
||||||
|
return POP_LINE_OK;
|
||||||
|
} else {
|
||||||
|
return POP_LINE_ERR;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
int _pop_session_internal_connect_cont (POPSession *session) {
|
||||||
|
int optval;
|
||||||
|
socklen_t optlen;
|
||||||
|
int res;
|
||||||
|
|
||||||
|
optval = -1;
|
||||||
|
|
||||||
|
optlen = sizeof (optval);
|
||||||
|
|
||||||
|
res = getsockopt (session->sock, SOL_SOCKET, SO_ERROR, &optval, &optlen);
|
||||||
|
|
||||||
|
if (res < 0) {
|
||||||
|
pop_session_close_and_clean (session);
|
||||||
|
|
||||||
|
return POP_ERROR;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (optval != 0) {
|
||||||
|
pop_session_close_and_clean (session);
|
||||||
|
|
||||||
|
return POP_ERROR;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Pasamos a la lectura del banner */
|
||||||
|
session->internal = POP_INTERNAL_READ;
|
||||||
|
session->estado = POP_STATE_BANNER;
|
||||||
|
session->read_count = 0;
|
||||||
|
return pop_session_continue (session, POP_WANT_POLL_IN);
|
||||||
|
}
|
||||||
|
|
||||||
|
// Arreglada
|
||||||
|
int _pop_session_internal_banner_code (POPSession *session) {
|
||||||
|
if (session->last_code == POP_LINE_OK) {
|
||||||
|
session->internal = POP_INTERNAL_FREE;
|
||||||
|
session->estado = POP_STATE_READY_BEFORE_LOGIN;
|
||||||
|
return POP_SUCCESS;
|
||||||
|
} else {
|
||||||
|
pop_session_close_and_clean (session);
|
||||||
|
return POP_ERROR;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Arreglada
|
||||||
|
int _pop_session_internal_start_auth_login (POPSession *session) {
|
||||||
|
int res, linea_size;
|
||||||
|
char *auth = "AUTH LOGIN\r\n";
|
||||||
|
|
||||||
|
linea_size = strlen (auth);
|
||||||
|
res = write (session->sock, auth, linea_size);
|
||||||
|
|
||||||
|
if (res < 0 && errno == EAGAIN) {
|
||||||
|
session->poll = POP_WANT_POLL_OUT;
|
||||||
|
session->internal = POP_INTERNAL_WRITE;
|
||||||
|
return POP_POLL;
|
||||||
|
} else if (res < linea_size) {
|
||||||
|
pop_session_close_and_clean (session);
|
||||||
|
|
||||||
|
return POP_ERROR;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Empezamos el AUTH LOGIN */
|
||||||
|
session->internal = POP_INTERNAL_READ;
|
||||||
|
|
||||||
|
return pop_session_continue (session, POP_WANT_POLL_IN);
|
||||||
|
}
|
||||||
|
|
||||||
|
// Arreglada
|
||||||
|
int _pop_session_internal_auth_login_code (POPSession *session) {
|
||||||
|
if (session->last_code == POP_LINE_OK) {
|
||||||
|
session->estado = POP_STATE_AUTH_LOGIN_USER;
|
||||||
|
session->internal = POP_INTERNAL_WRITE;
|
||||||
|
return pop_session_continue (session, POP_WANT_POLL_OUT);
|
||||||
|
} else if (session->last_code == POP_LINE_ERR) {
|
||||||
|
session->estado = POP_STATE_READY_BEFORE_LOGIN;
|
||||||
|
session->internal = POP_INTERNAL_FREE;
|
||||||
|
return POP_ERROR;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Arreglada
|
||||||
|
int _pop_session_internal_send_user (POPSession *session) {
|
||||||
|
char linea[1024];
|
||||||
|
int res, linea_size;
|
||||||
|
|
||||||
|
linea_size = snprintf (linea, sizeof (linea), "USER %s\r\n", session->user);
|
||||||
|
res = write (session->sock, linea, linea_size);
|
||||||
|
|
||||||
|
if (res < 0 && errno == EAGAIN) {
|
||||||
|
session->poll = POP_WANT_POLL_OUT;
|
||||||
|
session->internal = POP_INTERNAL_WRITE;
|
||||||
|
return POP_POLL;
|
||||||
|
} else if (res < linea_size) {
|
||||||
|
/* Enviamos menos de lo que deberíamos o error, TODO: revisar este caso */
|
||||||
|
pop_session_close_and_clean (session);
|
||||||
|
|
||||||
|
return POP_ERROR;
|
||||||
|
}
|
||||||
|
/* Envio completo */
|
||||||
|
session->internal = POP_INTERNAL_READ;
|
||||||
|
|
||||||
|
return pop_session_continue (session, POP_WANT_POLL_IN);
|
||||||
|
}
|
||||||
|
|
||||||
|
// Arreglada
|
||||||
|
int _pop_session_internal_user_code (POPSession *session) {
|
||||||
|
if (session->last_code == POP_LINE_OK) {
|
||||||
|
session->estado = POP_STATE_AUTH_LOGIN_PASS;
|
||||||
|
session->internal = POP_INTERNAL_WRITE;
|
||||||
|
return pop_session_continue (session, POP_WANT_POLL_OUT);
|
||||||
|
} else if (session->last_code == POP_LINE_ERR) {
|
||||||
|
session->internal = POP_INTERNAL_FREE;
|
||||||
|
session->estado = POP_STATE_READY_BEFORE_LOGIN;
|
||||||
|
|
||||||
|
return POP_ERROR;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Arreglada
|
||||||
|
int _pop_session_internal_send_pass (POPSession *session) {
|
||||||
|
char linea[1024];
|
||||||
|
int res, linea_size;
|
||||||
|
|
||||||
|
linea_size = snprintf (linea, sizeof (linea), "PASS %s\r\n", session->passwd);
|
||||||
|
res = write (session->sock, linea, linea_size);
|
||||||
|
|
||||||
|
if (res < 0 && errno == EAGAIN) {
|
||||||
|
session->poll = POP_WANT_POLL_OUT;
|
||||||
|
session->internal = POP_INTERNAL_WRITE;
|
||||||
|
return POP_POLL;
|
||||||
|
} else if (res < linea_size) {
|
||||||
|
/* Enviamos menos de lo que deberíamos o error, TODO: revisar este caso */
|
||||||
|
pop_session_close_and_clean (session);
|
||||||
|
|
||||||
|
return POP_ERROR;
|
||||||
|
}
|
||||||
|
/* Envio completo */
|
||||||
|
session->internal = POP_INTERNAL_READ;
|
||||||
|
|
||||||
|
return pop_session_continue (session, POP_WANT_POLL_IN);
|
||||||
|
}
|
||||||
|
|
||||||
|
// Arreglada
|
||||||
|
int _pop_session_internal_pass_code (POPSession *session) {
|
||||||
|
if (session->last_code == POP_LINE_OK) {
|
||||||
|
session->estado = POP_STATE_READY;
|
||||||
|
session->internal = POP_INTERNAL_FREE;
|
||||||
|
|
||||||
|
return POP_SUCCESS;
|
||||||
|
} else if (session->last_code == POP_LINE_ERR) {
|
||||||
|
session->estado = POP_STATE_READY_BEFORE_LOGIN;
|
||||||
|
session->internal = POP_INTERNAL_FREE;
|
||||||
|
|
||||||
|
return POP_ERROR;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Arreglada
|
||||||
|
int _pop_session_internal_send_cmd (POPSession *session) {
|
||||||
|
int res, linea_size;
|
||||||
|
|
||||||
|
linea_size = strlen (session->last_cmd);
|
||||||
|
res = write (session->sock, session->last_cmd, linea_size);
|
||||||
|
|
||||||
|
if (res < 0 && errno == EAGAIN) {
|
||||||
|
session->poll = POP_WANT_POLL_OUT;
|
||||||
|
session->internal = POP_INTERNAL_WRITE;
|
||||||
|
return POP_POLL;
|
||||||
|
} else if (res < linea_size) {
|
||||||
|
/* Enviamos menos de lo que deberíamos o error, TODO: revisar este caso */
|
||||||
|
pop_session_close_and_clean (session);
|
||||||
|
|
||||||
|
return POP_ERROR;
|
||||||
|
}
|
||||||
|
/* Envio completo */
|
||||||
|
session->internal = POP_INTERNAL_READ;
|
||||||
|
|
||||||
|
return pop_session_continue (session, POP_WANT_POLL_IN);
|
||||||
|
}
|
||||||
|
|
||||||
|
// Arreglada
|
||||||
|
int _pop_session_internal_cmd_code (POPSession *session) {
|
||||||
|
if (session->waiting_multiline && session->last_code == POP_LINE_OK) {
|
||||||
|
/* Si estabamos esperando una rspuesta multilinea y obtuvimos +OK, pasar a otro estado */
|
||||||
|
session->estado = POP_STATE_DATA;
|
||||||
|
session->poll = POP_WANT_POLL_IN;
|
||||||
|
session->internal = POP_INTERNAL_READ;
|
||||||
|
|
||||||
|
return pop_session_continue (session, POP_WANT_POLL_IN);
|
||||||
|
}
|
||||||
|
|
||||||
|
/* En caso contrario, el comando ya terminó de ejecutarse, estamos listos para otro */
|
||||||
|
session->estado = POP_STATE_READY;
|
||||||
|
session->internal = POP_INTERNAL_FREE;
|
||||||
|
|
||||||
|
if (session->last_code == POP_LINE_OK) {
|
||||||
|
return POP_SUCCESS;
|
||||||
|
}
|
||||||
|
return POP_ERROR;
|
||||||
|
}
|
||||||
|
|
||||||
|
int _pop_session_internal_send_close (POPSession *session) {
|
||||||
|
char *linea;
|
||||||
|
int res, linea_size;
|
||||||
|
|
||||||
|
linea = "QUIT\r\n";
|
||||||
|
linea_size = strlen (linea);
|
||||||
|
res = write (session->sock, linea, linea_size);
|
||||||
|
|
||||||
|
if (res < 0 && errno == EAGAIN) {
|
||||||
|
session->poll = POP_WANT_POLL_OUT;
|
||||||
|
session->internal = POP_INTERNAL_WRITE;
|
||||||
|
return POP_POLL;
|
||||||
|
} else if (res < linea_size) {
|
||||||
|
/* Enviamos menos de lo que deberíamos o error, TODO: revisar este caso */
|
||||||
|
pop_session_close_and_clean (session);
|
||||||
|
|
||||||
|
return POP_ERROR;
|
||||||
|
}
|
||||||
|
/* Envio completo */
|
||||||
|
session->internal = POP_INTERNAL_READ;
|
||||||
|
|
||||||
|
return pop_session_continue (session, POP_WANT_POLL_IN);
|
||||||
|
}
|
||||||
|
|
||||||
|
int _pop_session_internal_close_code (POPSession *session) {
|
||||||
|
/* Realmente no importa si en el quit mandan una respuesta +OK o -Err, ya vamos de salida */
|
||||||
|
session->internal = POP_INTERNAL_FREE;
|
||||||
|
session->estado = POP_STATE_READY;
|
||||||
|
pop_session_close_and_clean (session);
|
||||||
|
|
||||||
|
return POP_SUCCESS;
|
||||||
|
}
|
||||||
|
|
||||||
|
int pop_session_read_bytes (POPSession *session) {
|
||||||
|
int res;
|
||||||
|
if (session->read_count >= sizeof (session->read_buffer)) {
|
||||||
|
return POP_ERROR;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Leer tantos bytes como tenga el buffer */
|
||||||
|
res = read (session->sock, &session->read_buffer[session->read_count], sizeof (session->read_buffer) - session->read_count);
|
||||||
|
|
||||||
|
if (res == 0) {
|
||||||
|
session->ceof = 1;
|
||||||
|
} else if (res < 0) {
|
||||||
|
if (errno == EINTR || errno == EAGAIN) {
|
||||||
|
return POP_POLL;
|
||||||
|
}
|
||||||
|
return POP_ERROR;
|
||||||
|
} else {
|
||||||
|
session->read_count += res;
|
||||||
|
}
|
||||||
|
|
||||||
|
return POP_SUCCESS;
|
||||||
|
}
|
||||||
|
|
||||||
|
int pop_session_readline (POPSession *session, char *buffer, int max) {
|
||||||
|
char *end;
|
||||||
|
int line_size = 0;
|
||||||
|
|
||||||
|
if (session->read_count > 0) {
|
||||||
|
/* Ya había otros bytes en el buffer, procesarlos para buscar el salto de linea aquí */
|
||||||
|
line_size = (max >= session->read_count) ? session->read_count : max - 1;
|
||||||
|
|
||||||
|
end = memccpy (buffer, session->read_buffer, '\n', line_size);
|
||||||
|
|
||||||
|
if (end != NULL) {
|
||||||
|
line_size = end - buffer;
|
||||||
|
}
|
||||||
|
|
||||||
|
buffer[line_size] = 0;
|
||||||
|
|
||||||
|
/* Consumir x bytes de la entrada */
|
||||||
|
if (line_size < session->read_count) {
|
||||||
|
memmove (session->read_buffer, &session->read_buffer[line_size], session->read_count - line_size);
|
||||||
|
|
||||||
|
session->read_count -= line_size;
|
||||||
|
} else {
|
||||||
|
session->read_buffer[0] = 0;
|
||||||
|
session->read_count = 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (end != NULL) {
|
||||||
|
|
||||||
|
if (buffer[line_size - 2] == '\r') {
|
||||||
|
/* Quitar el \r */
|
||||||
|
buffer[line_size - 2] = '\n';
|
||||||
|
buffer[line_size - 1] = 0;
|
||||||
|
line_size--;
|
||||||
|
}
|
||||||
|
|
||||||
|
return line_size;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
return POP_POLL;
|
||||||
|
}
|
||||||
|
|
||||||
|
int pop_session_get_state (POPSession *session) {
|
||||||
|
return session->estado;
|
||||||
|
}
|
||||||
|
|
||||||
|
int pop_session_auth_login (POPSession *session, const char *user, const char *passwd) {
|
||||||
|
if (session->estado != POP_STATE_READY_BEFORE_LOGIN || session->internal != POP_INTERNAL_FREE) {
|
||||||
|
return POP_ERROR;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Copiar el usuario y contraseña */
|
||||||
|
session->user = strdup (user);
|
||||||
|
if (passwd != NULL) {
|
||||||
|
session->passwd = strdup (passwd);
|
||||||
|
} else {
|
||||||
|
session->passwd = NULL;
|
||||||
|
}
|
||||||
|
|
||||||
|
session->estado = POP_STATE_AUTH_LOGIN_USER;
|
||||||
|
session->internal = POP_INTERNAL_WRITE;
|
||||||
|
return pop_session_continue (session, POP_WANT_POLL_OUT);
|
||||||
|
}
|
||||||
|
|
||||||
|
// Arreglada
|
||||||
|
int pop_session_send_command (POPSession *session, char *command, int multiline) {
|
||||||
|
int len;
|
||||||
|
|
||||||
|
/* TODO: Revisar aquí otros estados */
|
||||||
|
if (session->estado != POP_STATE_READY || session->internal != POP_INTERNAL_FREE) {
|
||||||
|
return POP_ERROR;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Sanitizar el comando y asegurarnos que contenga el \r\n */
|
||||||
|
len = strlen (command);
|
||||||
|
if (command[len - 2] == '\r' && command[len - 1] == '\n') {
|
||||||
|
if (len + 1 > sizeof (session->last_cmd)) {
|
||||||
|
return POP_ERROR;
|
||||||
|
}
|
||||||
|
strncpy (session->last_cmd, command, sizeof (session->last_cmd));
|
||||||
|
} else if (command[len - 1] == '\r') {
|
||||||
|
if (len + 2 > sizeof (session->last_cmd)) {
|
||||||
|
return POP_ERROR;
|
||||||
|
}
|
||||||
|
strncpy (session->last_cmd, command, sizeof (session->last_cmd));
|
||||||
|
session->last_cmd[len] = '\n';
|
||||||
|
session->last_cmd[len + 1] = 0;
|
||||||
|
} else {
|
||||||
|
if (len + 3 > sizeof (session->last_cmd)) {
|
||||||
|
return POP_ERROR;
|
||||||
|
}
|
||||||
|
strncpy (session->last_cmd, command, sizeof (session->last_cmd));
|
||||||
|
session->last_cmd[len] = '\r';
|
||||||
|
session->last_cmd[len + 1] = '\n';
|
||||||
|
session->last_cmd[len + 2] = 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
session->estado = POP_STATE_CMD;
|
||||||
|
session->internal = POP_INTERNAL_WRITE;
|
||||||
|
session->waiting_multiline = multiline;
|
||||||
|
|
||||||
|
return pop_session_continue (session, POP_WANT_POLL_OUT);
|
||||||
|
}
|
||||||
|
|
||||||
|
int pop_session_send_close (POPSession *session) {
|
||||||
|
char *command;
|
||||||
|
int len;
|
||||||
|
|
||||||
|
if ((session->estado != POP_STATE_READY_BEFORE_LOGIN && session->estado != POP_STATE_READY) || session->internal != POP_INTERNAL_FREE) {
|
||||||
|
return POP_ERROR;
|
||||||
|
}
|
||||||
|
|
||||||
|
session->estado = POP_STATE_CLOSING;
|
||||||
|
session->internal = POP_INTERNAL_WRITE;
|
||||||
|
|
||||||
|
return pop_session_continue (session, POP_WANT_POLL_OUT);
|
||||||
|
}
|
||||||
|
|
||||||
|
int pop_session_get_socket (POPSession *session) {
|
||||||
|
return session->sock;
|
||||||
|
}
|
||||||
|
|
||||||
|
int pop_session_get_last_code (POPSession *session) {
|
||||||
|
return session->last_code;
|
||||||
|
}
|
||||||
|
|
||||||
|
char * pop_session_get_last_message (POPSession *session) {
|
||||||
|
return session->last_message;
|
||||||
|
}
|
||||||
|
|
||||||
|
void pop_session_data_func (POPSession *session, POPDataFunc func, void *data) {
|
||||||
|
session->line_func = func;
|
||||||
|
session->line_func_data = data;
|
||||||
|
}
|
||||||
|
|
||||||
|
int pop_session_get_poll (POPSession *session) {
|
||||||
|
return session->poll;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
@ -0,0 +1,78 @@
|
||||||
|
/*
|
||||||
|
* pop.h
|
||||||
|
* This file is part of LibPOPc
|
||||||
|
*
|
||||||
|
* Copyright (C) 2022 - Félix Arreola Rodríguez
|
||||||
|
*
|
||||||
|
* LibPOPc is free software; you can redistribute it and/or modify
|
||||||
|
* it under the terms of the GNU General Public License as published by
|
||||||
|
* the Free Software Foundation; either version 2 of the License, or
|
||||||
|
* (at your option) any later version.
|
||||||
|
*
|
||||||
|
* LibPOPc is distributed in the hope that it will be useful,
|
||||||
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
* GNU General Public License for more details.
|
||||||
|
*
|
||||||
|
* You should have received a copy of the GNU General Public License
|
||||||
|
* along with LibPOPc; if not, write to the Free Software
|
||||||
|
* Foundation, Inc., 51 Franklin St, Fifth Floor,
|
||||||
|
* Boston, MA 02110-1301 USA
|
||||||
|
*/
|
||||||
|
|
||||||
|
#ifndef __POP_H__
|
||||||
|
#define __POP_H__
|
||||||
|
|
||||||
|
#include <stdio.h>
|
||||||
|
#include <stdlib.h>
|
||||||
|
#include <string.h>
|
||||||
|
#include <sys/types.h>
|
||||||
|
#include <sys/socket.h>
|
||||||
|
|
||||||
|
#define POP_WANT_NONE 0x000
|
||||||
|
#define POP_WANT_POLL_IN 0x001
|
||||||
|
#define POP_WANT_POLL_OUT 0x002
|
||||||
|
|
||||||
|
enum {
|
||||||
|
POP_ERROR = -1,
|
||||||
|
POP_POLL = 0,
|
||||||
|
POP_SUCCESS = 1
|
||||||
|
};
|
||||||
|
|
||||||
|
enum {
|
||||||
|
POP_STATE_CLOSED = 0,
|
||||||
|
POP_STATE_TRYING_CONNECT,
|
||||||
|
POP_STATE_BANNER,
|
||||||
|
POP_STATE_READY_BEFORE_LOGIN,
|
||||||
|
POP_STATE_AUTH_LOGIN_USER,
|
||||||
|
POP_STATE_AUTH_LOGIN_PASS,
|
||||||
|
POP_STATE_READY,
|
||||||
|
POP_STATE_CMD,
|
||||||
|
POP_STATE_DATA,
|
||||||
|
|
||||||
|
POP_STATE_CLOSING,
|
||||||
|
};
|
||||||
|
|
||||||
|
typedef struct _POPSession POPSession;
|
||||||
|
|
||||||
|
typedef void (*POPDataFunc) (POPSession *session, const char *line, void *data);
|
||||||
|
|
||||||
|
POPSession *pop_session_create (void);
|
||||||
|
int pop_session_auth_login (POPSession *session, const char *user, const char *passwd);
|
||||||
|
int pop_session_connect (POPSession *session, struct sockaddr *server, socklen_t addr_len);
|
||||||
|
void pop_session_close_and_clean (POPSession *session);
|
||||||
|
int pop_session_send_command (POPSession *session, char *command, int multiline);
|
||||||
|
int pop_session_send_close (POPSession *session);
|
||||||
|
|
||||||
|
int pop_session_continue (POPSession *session, int what);
|
||||||
|
int pop_session_get_state (POPSession *session);
|
||||||
|
int pop_session_get_poll (POPSession *session);
|
||||||
|
int pop_session_get_socket (POPSession *session);
|
||||||
|
int pop_session_get_last_code (POPSession *session);
|
||||||
|
char * pop_session_get_last_message (POPSession *session);
|
||||||
|
void pop_session_free (POPSession *session);
|
||||||
|
|
||||||
|
void pop_session_data_func (POPSession *session, POPDataFunc func, void *data);
|
||||||
|
|
||||||
|
#endif /* __POP_H__ */
|
||||||
|
|
||||||
Loading…
Reference in New Issue