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Checks: 'clang-*,-clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling' |
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# meson build directory |
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build/ |
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|
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# exclude test data folders |
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test/*/ |
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|
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# external projects, if any |
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subprojects/*/ |
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|
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# hidden files |
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.* |
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!.clang-format |
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!.clang-tidy |
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!.gitignore |
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!.gitmodules |
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|
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# KDevelop projects |
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*.kdev4 |
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|
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# Prerequisites |
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*.d |
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|
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# Compiled Object files |
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*.slo |
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*.lo |
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*.o |
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*.obj |
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|
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# Precompiled Headers |
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*.gch |
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*.pch |
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|
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# Compiled Dynamic libraries |
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*.so |
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*.dylib |
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*.dll |
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|
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# Fortran module files |
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*.mod |
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*.smod |
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|
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# Compiled Static libraries |
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*.lai |
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*.la |
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*.a |
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*.lib |
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|
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# Executables |
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*.exe |
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*.out |
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*.app |
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GNU GENERAL PUBLIC LICENSE |
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Version 3, 29 June 2007 |
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|
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Copyright (C) 2007 Free Software Foundation, Inc. <https://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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|
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Preamble |
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|
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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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|
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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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price. Our General Public Licenses are designed to make sure that you |
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have the freedom to distribute copies of free software (and charge for |
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them if you wish), that you receive source code or can get it if you |
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want it, that you can change the software or use pieces of it in new |
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free programs, and that you know you can do these things. |
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To protect your rights, we need to prevent others from denying you |
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certain responsibilities if you distribute copies of the software, or if |
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you modify it: responsibilities to respect the freedom of others. |
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For example, if you distribute copies of such a program, whether |
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Developers that use the GNU GPL protect your rights with two steps: |
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For the developers' and authors' protection, the GPL clearly explains |
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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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"Copyright" also means copyright-like laws that apply to other kinds of |
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A "covered work" means either the unmodified Program or a work based |
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To "propagate" a work means to do anything with it that, without |
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The Corresponding Source need not include anything that users |
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The Corresponding Source for a work in source code form is that |
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2. Basic Permissions. |
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All rights granted under this License are granted for the term of |
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copyright on the Program, and are irrevocable provided the stated |
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conditions are met. This License explicitly affirms your unlimited |
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covered work is covered by this License only if the output, given its |
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You may make, run and propagate covered works that you do not |
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convey, without conditions so long as your license otherwise remains |
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for you must do so exclusively on your behalf, under your direction |
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Conveying under any other circumstances is permitted solely under |
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the conditions stated below. Sublicensing is not allowed; section 10 |
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makes it unnecessary. |
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3. Protecting Users' Legal Rights From Anti-Circumvention Law. |
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No covered work shall be deemed part of an effective technological |
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measure under any applicable law fulfilling obligations under article |
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11 of the WIPO copyright treaty adopted on 20 December 1996, or |
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similar laws prohibiting or restricting circumvention of such |
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measures. |
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When you convey a covered work, you waive any legal power to forbid |
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4. Conveying Verbatim Copies. |
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You may convey verbatim copies of the Program's source code as you |
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keep intact all notices of the absence of any warranty; and give all |
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You may charge any price or no price for each copy that you convey, |
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and you may offer support or warranty protection for a fee. |
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5. Conveying Modified Source Versions. |
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You may convey a work based on the Program, or the modifications to |
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produce it from the Program, in the form of source code under the |
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terms of section 4, provided that you also meet all of these conditions: |
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a) The work must carry prominent notices stating that you modified |
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it, and giving a relevant date. |
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b) The work must carry prominent notices stating that it is |
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released under this License and any conditions added under section |
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7. This requirement modifies the requirement in section 4 to |
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"keep intact all notices". |
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c) You must license the entire work, as a whole, under this |
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License to anyone who comes into possession of a copy. This |
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License will therefore apply, along with any applicable section 7 |
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additional terms, to the whole of the work, and all its parts, |
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regardless of how they are packaged. This License gives no |
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permission to license the work in any other way, but it does not |
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invalidate such permission if you have separately received it. |
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d) If the work has interactive user interfaces, each must display |
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Appropriate Legal Notices; however, if the Program has interactive |
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interfaces that do not display Appropriate Legal Notices, your |
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work need not make them do so. |
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A compilation of a covered work with other separate and independent |
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in or on a volume of a storage or distribution medium, is called an |
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You may convey a covered work in object code form under the terms |
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with subsection 6b. |
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d) Convey the object code by offering access from a designated |
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Source of the work are being offered to the general public at no |
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A separable portion of the object code, whose source code is excluded |
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A "User Product" is either (1) a "consumer product", which means any |
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"Installation Information" for a User Product means any methods, |
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code is in no case prevented or interfered with solely because |
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If you convey an object code work under this section in, or with, or |
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The requirement to provide Installation Information does not include a |
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Corresponding Source conveyed, and Installation Information provided, |
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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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7. Additional Terms. |
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"Additional permissions" are terms that supplement the terms of this |
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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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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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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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Notwithstanding any other provision of this License, for material you |
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add to a covered work, you may (if authorized by the copyright holders of |
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terms of sections 15 and 16 of this License; or |
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b) Requiring preservation of specified reasonable legal notices or |
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Notices displayed by works containing it; or |
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All other non-permissive additional terms are considered "further |
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If you add terms to a covered work in accord with this section, you |
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Additional terms, permissive or non-permissive, may be stated in the |
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the above requirements apply either way. |
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8. Termination. |
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You may not propagate or modify a covered work except as expressly |
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provided under this License. Any attempt otherwise to propagate or |
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modify it is void, and will automatically terminate your rights under |
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this License (including any patent licenses granted under the third |
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paragraph of section 11). |
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However, if you cease all violation of this License, then your |
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license from a particular copyright holder is reinstated (a) |
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provisionally, unless and until the copyright holder explicitly and |
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finally terminates your license, and (b) permanently, if the copyright |
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holder fails to notify you of the violation by some reasonable means |
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prior to 60 days after the cessation. |
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|
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Moreover, your license from a particular copyright holder is |
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reinstated permanently if the copyright holder notifies you of the |
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violation by some reasonable means, this is the first time you have |
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received notice of violation of this License (for any work) from that |
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copyright holder, and you cure the violation prior to 30 days after |
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your receipt of the notice. |
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Termination of your rights under this section does not terminate the |
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licenses of parties who have received copies or rights from you under |
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this License. If your rights have been terminated and not permanently |
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reinstated, you do not qualify to receive new licenses for the same |
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material under section 10. |
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9. Acceptance Not Required for Having Copies. |
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You are not required to accept this License in order to receive or |
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run a copy of the Program. Ancillary propagation of a covered work |
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occurring solely as a consequence of using peer-to-peer transmission |
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to receive a copy likewise does not require acceptance. However, |
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nothing other than this License grants you permission to propagate or |
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modify any covered work. These actions infringe copyright if you do |
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not accept this License. Therefore, by modifying or propagating a |
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10. Automatic Licensing of Downstream Recipients. |
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Each time you convey a covered work, the recipient automatically |
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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 <https://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 |
|||
<https://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 |
|||
<https://www.gnu.org/licenses/why-not-lgpl.html>. |
|||
|
|||
@ -0,0 +1,166 @@ |
|||
GNU LESSER GENERAL PUBLIC LICENSE |
|||
Version 3, 29 June 2007 |
|||
|
|||
Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/> |
|||
Everyone is permitted to copy and distribute verbatim copies |
|||
of this license document, but changing it is not allowed. |
|||
|
|||
|
|||
This version of the GNU Lesser General Public License incorporates |
|||
the terms and conditions of version 3 of the GNU General Public |
|||
License, supplemented by the additional permissions listed below. |
|||
|
|||
0. Additional Definitions. |
|||
|
|||
As used herein, "this License" refers to version 3 of the GNU Lesser |
|||
General Public License, and the "GNU GPL" refers to version 3 of the GNU |
|||
General Public License. |
|||
|
|||
"The Library" refers to a covered work governed by this License, |
|||
other than an Application or a Combined Work as defined below. |
|||
|
|||
An "Application" is any work that makes use of an interface provided |
|||
by the Library, but which is not otherwise based on the Library. |
|||
Defining a subclass of a class defined by the Library is deemed a mode |
|||
of using an interface provided by the Library. |
|||
|
|||
A "Combined Work" is a work produced by combining or linking an |
|||
Application with the Library. The particular version of the Library |
|||
with which the Combined Work was made is also called the "Linked |
|||
Version". |
|||
|
|||
The "Minimal Corresponding Source" for a Combined Work means the |
|||
Corresponding Source for the Combined Work, excluding any source code |
|||
for portions of the Combined Work that, considered in isolation, are |
|||
based on the Application, and not on the Linked Version. |
|||
|
|||
The "Corresponding Application Code" for a Combined Work means the |
|||
object code and/or source code for the Application, including any data |
|||
and utility programs needed for reproducing the Combined Work from the |
|||
Application, but excluding the System Libraries of the Combined Work. |
|||
|
|||
1. Exception to Section 3 of the GNU GPL. |
|||
|
|||
You may convey a covered work under sections 3 and 4 of this License |
|||
without being bound by section 3 of the GNU GPL. |
|||
|
|||
2. Conveying Modified Versions. |
|||
|
|||
If you modify a copy of the Library, and, in your modifications, a |
|||
facility refers to a function or data to be supplied by an Application |
|||
that uses the facility (other than as an argument passed when the |
|||
facility is invoked), then you may convey a copy of the modified |
|||
version: |
|||
|
|||
a) under this License, provided that you make a good faith effort to |
|||
ensure that, in the event an Application does not supply the |
|||
function or data, the facility still operates, and performs |
|||
whatever part of its purpose remains meaningful, or |
|||
|
|||
b) under the GNU GPL, with none of the additional permissions of |
|||
this License applicable to that copy. |
|||
|
|||
3. Object Code Incorporating Material from Library Header Files. |
|||
|
|||
The object code form of an Application may incorporate material from |
|||
a header file that is part of the Library. You may convey such object |
|||
code under terms of your choice, provided that, if the incorporated |
|||
material is not limited to numerical parameters, data structure |
|||
layouts and accessors, or small macros, inline functions and templates |
|||
(ten or fewer lines in length), you do both of the following: |
|||
|
|||
a) Give prominent notice with each copy of the object code that the |
|||
Library is used in it and that the Library and its use are |
|||
covered by this License. |
|||
|
|||
b) Accompany the object code with a copy of the GNU GPL and this license |
|||
document. |
|||
|
|||
4. Combined Works. |
|||
|
|||
You may convey a Combined Work under terms of your choice that, |
|||
taken together, effectively do not restrict modification of the |
|||
portions of the Library contained in the Combined Work and reverse |
|||
engineering for debugging such modifications, if you also do each of |
|||
the following: |
|||
|
|||
a) Give prominent notice with each copy of the Combined Work that |
|||
the Library is used in it and that the Library and its use are |
|||
covered by this License. |
|||
|
|||
b) Accompany the Combined Work with a copy of the GNU GPL and this license |
|||
document. |
|||
|
|||
c) For a Combined Work that displays copyright notices during |
|||
execution, include the copyright notice for the Library among |
|||
these notices, as well as a reference directing the user to the |
|||
copies of the GNU GPL and this license document. |
|||
|
|||
d) Do one of the following: |
|||
|
|||
0) Convey the Minimal Corresponding Source under the terms of this |
|||
License, and the Corresponding Application Code in a form |
|||
suitable for, and under terms that permit, the user to |
|||
recombine or relink the Application with a modified version of |
|||
the Linked Version to produce a modified Combined Work, in the |
|||
manner specified by section 6 of the GNU GPL for conveying |
|||
Corresponding Source. |
|||
|
|||
1) Use a suitable shared library mechanism for linking with the |
|||
Library. A suitable mechanism is one that (a) uses at run time |
|||
a copy of the Library already present on the user's computer |
|||
system, and (b) will operate properly with a modified version |
|||
of the Library that is interface-compatible with the Linked |
|||
Version. |
|||
|
|||
e) Provide Installation Information, but only if you would otherwise |
|||
be required to provide such information under section 6 of the |
|||
GNU GPL, and only to the extent that such information is |
|||
necessary to install and execute a modified version of the |
|||
Combined Work produced by recombining or relinking the |
|||
Application with a modified version of the Linked Version. (If |
|||
you use option 4d0, the Installation Information must accompany |
|||
the Minimal Corresponding Source and Corresponding Application |
|||
Code. If you use option 4d1, you must provide the Installation |
|||
Information in the manner specified by section 6 of the GNU GPL |
|||
for conveying Corresponding Source.) |
|||
|
|||
5. Combined Libraries. |
|||
|
|||
You may place library facilities that are a work based on the |
|||
Library side by side in a single library together with other library |
|||
facilities that are not Applications and are not covered by this |
|||
License, and convey such a combined library under terms of your |
|||
choice, if you do both of the following: |
|||
|
|||
a) Accompany the combined library with a copy of the same work based |
|||
on the Library, uncombined with any other library facilities, |
|||
conveyed under the terms of this License. |
|||
|
|||
b) Give prominent notice with the combined library that part of it |
|||
is a work based on the Library, and explaining where to find the |
|||
accompanying uncombined form of the same work. |
|||
|
|||
6. Revised Versions of the GNU Lesser General Public License. |
|||
|
|||
The Free Software Foundation may publish revised and/or new versions |
|||
of the GNU Lesser 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 |
|||
Library as you received it specifies that a certain numbered version |
|||
of the GNU Lesser General Public License "or any later version" |
|||
applies to it, you have the option of following the terms and |
|||
conditions either of that published version or of any later version |
|||
published by the Free Software Foundation. If the Library as you |
|||
received it does not specify a version number of the GNU Lesser |
|||
General Public License, you may choose any version of the GNU Lesser |
|||
General Public License ever published by the Free Software Foundation. |
|||
|
|||
If the Library as you received it specifies that a proxy can decide |
|||
whether future versions of the GNU Lesser General Public License shall |
|||
apply, that proxy's public statement of acceptance of any version is |
|||
permanent authorization for you to choose that version for the |
|||
Library. |
|||
|
|||
@ -0,0 +1,60 @@ |
|||
µbgpsuite -- Micro BGP Suite and Utility library |
|||
================================================ |
|||
|
|||
# Introduction |
|||
|
|||
`µbgpsuite`, the Micro BGP Suite and Utility library, is a project |
|||
aiming to provide a low level library and utilities for |
|||
high-performance and flexible network analysis, with special |
|||
focus on the Border Gateway Protocol (BGP). |
|||
The purpose of this suite is establishing a friendly environment |
|||
for research and experimentation of useful data study |
|||
techniques to improve network health. |
|||
|
|||
# lonetix -- Low-overhead Networking programming Interface |
|||
|
|||
The project is centered around `lonetix`, a low overhead and |
|||
low level networking library written in C. |
|||
It provides a set of general functionality to implement the suite utilities. |
|||
`lonetix` principles are: |
|||
- efficiency: `lonetix` has to be fast and versatile; |
|||
- predictability: data structures and functions should be predictable |
|||
and reflect the actual protocol, abstraction should not degenerate |
|||
into alienation; |
|||
- zero copy and zero overhead: be friendly to your target CPU and cache, |
|||
you never know just how fast or poweful the target platform will be, |
|||
ideally `lonetix` should be capable of performing useful work on embedded |
|||
systems as well as full fledged power systems alike; |
|||
- lean: try to be self-contained and only introduce dependencies when strictly |
|||
necessary. |
|||
|
|||
Extensive documentation of `lonetix` and its API is available. |
|||
|
|||
# Utilities |
|||
|
|||
`lonetix` is the building block of `bgpgrep`, this far our single |
|||
utility -- but more of them are coming, right? |
|||
|
|||
`bgpgrep` performs fast and reliable analysis of MRT dumps |
|||
collected by most Route Collecting projects. It takes a different |
|||
turn compared to most similar tools, in that it provides extensive |
|||
filtering utilities, in order to extrapolate only relevant data |
|||
out of each MRT dump (and incidentally save quite some time). |
|||
In-depth documentation of `bgpgrep` is available in its man page. |
|||
|
|||
# License |
|||
|
|||
The Micro BGP Suite is free software. |
|||
You can redistribute the `lonetix` library and/or modify it under the terms of the |
|||
GNU Lesser General Public License. |
|||
You can redistribute any utility and/or modify it under the terms of the |
|||
GNU General Public License. |
|||
|
|||
The Micro BGP Suite 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 license terms for |
|||
more details. |
|||
|
|||
See `COPYING.LESSER` for the GNU Lesser General Public License terms, |
|||
and `COPYING.GPL` for the GNU General Public License terms. |
|||
|
|||
File diff suppressed because it is too large
@ -0,0 +1,55 @@ |
|||
Micro BGP Suite history |
|||
======================= |
|||
|
|||
This document summarizes a bit of history of the project, it tells you anything |
|||
you didn't want to know about `ubgpsuite` and never cared to ask. |
|||
|
|||
`ubgpsuite` was created as an evolution over `bgpscanner` and its companion |
|||
library, `isocore`. `bgpscanner` was originally developed by me starting in 2017 |
|||
as part of the Isolario Project, under the Institute of Informatics and |
|||
Telematics of the Italian National Research Council |
|||
[IIT-CNR](https://www.iit.cnr.it/). |
|||
`bgpscanner` was covered by the MIT license terms and is still available |
|||
(as of May 2021) at Isolario's |
|||
[website](https://isolario.it/web_content/php/site_content/tools.php). |
|||
Despite the fact that `bgpscanner` code was developed mostly by me, the |
|||
help of the Isolario team, their patience, and their knowledge about BGP's |
|||
nuts and bolts was invaluable to get it rolling. |
|||
|
|||
By mid 2019, my collaboration with IIT-CNR has ceased. |
|||
In an attempt to further the concepts behind `bgpscanner` and keep experimenting |
|||
with them, I started the `ubgpsuite` project. At this time I was involved with |
|||
[Alpha Cogs](https://www.alphacogs.com), a company I co-founded, so I undertook |
|||
`ubgpsuite` development and got it moving forward with its financial support. |
|||
|
|||
`ubgpsuite` was born by a partial rewrite of `bgpscanner`, taking advantage of |
|||
the fact that there was no more interoperability constrain with a larger |
|||
project -- `isocore` was originally intended to be used by other |
|||
components inside the Isolario project as well, but that wasn't the |
|||
case anymore. This allowed some minor improvement to the codebase, but the |
|||
overall software architecture was unchanged. Though `ubgpsuite` was relicensed |
|||
under the terms of LGPLv3+ for library code and GPLv3+ for utilities and tools. |
|||
The choice was motivated by my intention to keep the project free |
|||
(as in freedom) forever, considering that the only reason I was able to continue |
|||
developing the code I authored at IIT-CNR and keep the project alive was |
|||
its original open source license. |
|||
|
|||
Unfortunately a chronical lack of time, due to more pressing company priorities, |
|||
has hit the fan during that year and most of 2020. But finally, |
|||
by the end of 2020, I got the chance to dedicate some time to the project. |
|||
As a matter of fact, I left Alpha Cogs and devoted a bit of myself to |
|||
move `ubgpsuite` and other projects I cared about out of stagnation. |
|||
`ubgpsuite` was then outside Alpha Cogs and became the first of |
|||
DoubleFourteen Code Forge projects -- 1414° for short, an initiative I |
|||
founded to research and develop free software, in the hope of improving |
|||
the software ecosystem. |
|||
|
|||
On 2021, a total rewrite of `ubgpsuite` was complete and ready for release, |
|||
with this document included. History of the project will thereafter remain |
|||
unread. |
|||
|
|||
Keep developing the code you love and enjoy, |
|||
|
|||
--- |
|||
|
|||
Lorenzo Cogotti |
|||
@ -0,0 +1,3 @@ |
|||
:root { |
|||
--note-color-darker: #8e7618; |
|||
} |
|||
@ -0,0 +1,108 @@ |
|||
/** |
|||
|
|||
Doxygen Awesome |
|||
https://github.com/jothepro/doxygen-awesome-css |
|||
|
|||
MIT License |
|||
|
|||
Copyright (c) 2021 jothepro |
|||
|
|||
Permission is hereby granted, free of charge, to any person obtaining a copy |
|||
of this software and associated documentation files (the "Software"), to deal |
|||
in the Software without restriction, including without limitation the rights |
|||
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
|||
copies of the Software, and to permit persons to whom the Software is |
|||
furnished to do so, subject to the following conditions: |
|||
|
|||
The above copyright notice and this permission notice shall be included in all |
|||
copies or substantial portions of the Software. |
|||
|
|||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
|||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
|||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
|||
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
|||
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
|||
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
|||
SOFTWARE. |
|||
|
|||
*/ |
|||
|
|||
:root { |
|||
/* side nav width. MUST be = `TREEVIEW_WIDTH`. |
|||
* Make sure it is wide enought to contain the page title (logo + title + version) |
|||
*/ |
|||
--side-nav-fixed-width: 350px; |
|||
--menu-display: none; |
|||
|
|||
--top-height: 120px; |
|||
} |
|||
|
|||
|
|||
@media screen and (min-width: 768px) { |
|||
:root { |
|||
--searchbar-background: var(--page-background-color); |
|||
} |
|||
|
|||
#side-nav { |
|||
min-width: var(--side-nav-fixed-width); |
|||
max-width: var(--side-nav-fixed-width); |
|||
top: var(--top-height); |
|||
} |
|||
|
|||
#nav-tree, #side-nav { |
|||
height: calc(100vh - var(--top-height)) !important; |
|||
} |
|||
|
|||
#nav-tree { |
|||
padding: 0; |
|||
} |
|||
|
|||
#top { |
|||
display: block; |
|||
border-bottom: none; |
|||
height: var(--top-height); |
|||
margin-bottom: calc(0px - var(--top-height)); |
|||
max-width: var(--side-nav-fixed-width); |
|||
background: var(--side-nav-background); |
|||
} |
|||
#main-nav { |
|||
float: left; |
|||
} |
|||
|
|||
.ui-resizable-handle { |
|||
cursor: default; |
|||
width: 1px !important; |
|||
box-shadow: 0 calc(-2 * var(--top-height)) 0 0 var(--separator-color); |
|||
} |
|||
|
|||
#nav-path { |
|||
position: fixed; |
|||
right: 0; |
|||
left: var(--side-nav-fixed-width); |
|||
bottom: 0; |
|||
width: auto; |
|||
} |
|||
|
|||
#doc-content { |
|||
height: calc(100vh - 31px) !important; |
|||
padding-bottom: calc(3 * var(--spacing-large)); |
|||
padding-top: calc(var(--top-height) - 80px); |
|||
box-sizing: border-box; |
|||
margin-left: var(--side-nav-fixed-width) !important; |
|||
} |
|||
|
|||
#MSearchBox { |
|||
width: calc(var(--side-nav-fixed-width) - calc(2 * var(--spacing-medium))); |
|||
} |
|||
|
|||
#MSearchField { |
|||
width: calc(var(--side-nav-fixed-width) - calc(2 * var(--spacing-medium)) - 65px); |
|||
} |
|||
|
|||
#MSearchResultsWindow { |
|||
left: var(--spacing-medium) !important; |
|||
right: auto; |
|||
} |
|||
} |
|||
|
|||
|
|||
File diff suppressed because it is too large
@ -0,0 +1,21 @@ |
|||
cdata = configuration_data({ |
|||
'TOP_SRCDIR': meson.source_root(), |
|||
'TOP_BUILDDIR': meson.build_root(), |
|||
'OUTPUT_DIR': meson.build_root() / 'doc', |
|||
'VERSION': meson.project_version(), |
|||
'PROJECT_NAME': meson.project_name(), |
|||
}) |
|||
|
|||
doxyfile = configure_file(input : 'Doxyfile.in', |
|||
output : 'Doxyfile', |
|||
configuration : cdata, |
|||
install : false) |
|||
|
|||
doc_target = custom_target('doc', |
|||
build_by_default : false, |
|||
build_always_stale : true, |
|||
console : true, |
|||
command : [ doxygen, doxyfile ], |
|||
output : [ 'doc' ]) |
|||
|
|||
alias_target('doc', doc_target) |
|||
@ -0,0 +1,170 @@ |
|||
Low-overhead Networking library Interface |
|||
============================================= |
|||
|
|||
# Introdution and philosophy |
|||
|
|||
`lonetix` is a general, performance oriented, C networking library. |
|||
Its field of application leans towards high-performance analysis of |
|||
Border Gateway Protocol (BGP) data. |
|||
|
|||
`lonetix` is somewhat opinionated, its principles are: |
|||
- efficiency: `lonetix` has to be fast and versatile; |
|||
- predictability: data structures and functions should be predictable |
|||
and reflect the actual protocol, abstraction should not degenerate |
|||
into alienation; |
|||
- zero copy and zero overhead: be friendly to your target CPU and cache, |
|||
you never know just how fast or poweful the target platform will be, |
|||
ideally `lonetix` should be capable of performing useful work on embedded |
|||
systems as well as full fledged power systems alike; |
|||
- lean: try to be self-contained and only introduce dependencies when |
|||
necessary. |
|||
|
|||
Following sections further elaborate on these points. |
|||
|
|||
## Efficiency |
|||
|
|||
Network analysis is usually thought as a computationally intensive task, |
|||
involving powerful machines capable of crunching large datasets. |
|||
Fast prototyping is tipically preferred over carefully planned, optimized code |
|||
and tools. Our belief is that careful optimizations, good algorithms and general |
|||
libraries may empower scientific research to productively elaborate data faster. |
|||
|
|||
Efficient algorithms and tools make previously prohibitive tasks plausible. |
|||
|
|||
Some researchers have no access to powerful workstations, though devices |
|||
commonly available to the general public are capable enough to perform |
|||
interesting network analysis tasks. |
|||
|
|||
Good tools should not restrict research, they should encourage it. |
|||
|
|||
Efficiency should be a guiding principle behind `lonetix`, and the main |
|||
reason for choosing C as a language. |
|||
|
|||
## Predictability |
|||
|
|||
`lonetix` is a relatively low-level C library. As such it deals with |
|||
common software engineering problems. In contrast with common opinion, C has |
|||
sufficient means to define a decent level of abstraction. |
|||
Powerful abstractions have to be formalized, documented, explained and learned. |
|||
Once this process is complete, powerful abstractions need to be used correctly. |
|||
Therefore, powerful abstractions need expensive engineering and comprehensive |
|||
documentation, they imply a learning curve and a period of practice. |
|||
|
|||
Abstraction is a key software engineering concept only valuable if worthwhile. |
|||
|
|||
Excessive abstraction may distract too much from the intent of a programming |
|||
interface, making it more obfuscated, less obvious, thus less predictable. |
|||
Additionally, it makes it harder for a programmer using them to guess or |
|||
estimate their performance penalty -- a particularly undesirable feature |
|||
in a scenario where such estimate could be crucial. |
|||
Whenever possible an interface should be transparent to the programmer, |
|||
essential, immediate in conveying its purpose and model, keep its field of |
|||
application clear and confined. |
|||
|
|||
`lonetix` builds complex abstraction only in face of a sufficient gain. |
|||
Simplicity is a virtue, and obvious solutions need less explaination. |
|||
Oftentimes, solving a large problem with clear straight to the point code |
|||
is testament of a solid approach. |
|||
|
|||
## Zero copy |
|||
|
|||
`lonetix` deals, for the most part, with BGP messages. |
|||
Decoding them, ensuring their integrity and accessing their fields |
|||
conveniently and efficiently is central to the usefulness of the library. |
|||
|
|||
Most libraries that read messages encoded in a particular protocol, |
|||
take the common approach of introducing a decode phase upfront, |
|||
with the intent of transforming its raw data into a more palatable |
|||
representation for the library. |
|||
The obvious advantages of this approach are: |
|||
- an efficient resulting data structure that makes it easy to access every |
|||
message field when needed; |
|||
- any data integrity error is detected upfront, during the transformation. |
|||
|
|||
Situation is specular for message writing. |
|||
|
|||
This approach comes with its own set of disadvantages, though: |
|||
- an initial decoding phase implies the whole message is scanned at least |
|||
once to organize it in the new data structure, even when only a single field of |
|||
the entire message would be relevant to the user; |
|||
- CPU architectures greatly benefit from cache reuse, introducing a decode |
|||
phase upfront that moves data around from a plain byte buffer to a complex |
|||
data structure is usually bad news to the CPU cache; |
|||
- more data structures generally imply more memory allocations; |
|||
- translating raw data to the target data structure and back may |
|||
require more complex API and implementation than providing equivalent |
|||
facilities to access raw data directly. |
|||
|
|||
These reasons motivated `lonetix` to explore a more trivial zero-copy approach: |
|||
whenever possible `lonetix` should work with raw BGP messages and require no |
|||
unnecessary data copy. |
|||
|
|||
Do note that this approach is not perfect either. We simply believe that the |
|||
tradeoff is to `lonetix` advantage, and a zero copy approach fits better in |
|||
a performance-oriented and predictable library. |
|||
|
|||
Same considerations apply to any portions of the library facing similar |
|||
situations (MRT data, other network protocols, etc...). |
|||
|
|||
## Zero overhead |
|||
|
|||
`lonetix` provides comprehensive facilities for network analysis and additional |
|||
utility functions for a wide variety of common tasks |
|||
(including string utilities, text parsing, etc...). |
|||
Library users should not be burdened with overhead for functionality they don't |
|||
need. |
|||
|
|||
By design `lonetix` should be modular and require no runtime overhead |
|||
(such as background threads, `atexit()` hooks, or static initialization) |
|||
unless deemed as positively and unmistakably unavoidable. |
|||
|
|||
`lonetix` is a **static library**, making it possible for the compiler to |
|||
strip any unused code from the resulting binary. |
|||
|
|||
Careful coding should always allow to compile the library with |
|||
full optimizations on, including Link Time Optimization |
|||
(whether the binary should be optimized for space or |
|||
speed should be configurable by the user). |
|||
|
|||
## Lean |
|||
|
|||
No external dependency should be introduced unless strictly necessary. |
|||
This helps improving portability and makes `lonetix` usable even under |
|||
constrained environments. |
|||
|
|||
`lonetix` **does not pursue strict ABI or API stability**. |
|||
|
|||
Given that `lonetix` is a static library, keeping ABI stability is unnecessary. |
|||
Strict API stability tends to clutter libraries with large amounts of |
|||
legacy code, `lonetix` strives for incremental code improvement. |
|||
This sometimes calls for changes to the API and minor interface variations. |
|||
Users wishing for specific features from older versions that have been |
|||
evicted or changed on current ones, may fetch the older versions and link to |
|||
them. |
|||
Though API stability is not guaranteed, it should not be broken deliberately, |
|||
viable code migration paths should be offered when possible, for sensible use |
|||
cases. |
|||
|
|||
# Documentation and examples |
|||
|
|||
Complete project documentation is currently work in progress. |
|||
|
|||
Extensive `Doxygen` API documentation is available for most of the library. |
|||
We also believe code should be clear, understandable and idiomatic, so |
|||
you can check out the code of any utility using `lonetix` |
|||
(for example `bgpgrep`) as a reference of how to take advantage of the library. |
|||
|
|||
# License |
|||
|
|||
`lonetix` is free software. You can redistribute it and/or modify it under |
|||
the terms of the GNU Lesser General Public License version 3 as published |
|||
by the Free Software Foundation, or, at your choice, any subsequent version |
|||
of the same license. `lonetix` 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 license terms for |
|||
more details. |
|||
|
|||
See `COPYING.LESSER` under the Micro BGP Suite root project directory for the |
|||
GNU Lesser General Public License terms, or see the |
|||
[Free Software Foundation website](https://www.gnu.org/licenses/lgpl-3.0.txt). |
|||
|
|||
@ -0,0 +1,349 @@ |
|||
// SPDX-License-Identifier: LGPL-3.0-or-later
|
|||
|
|||
/**
|
|||
* \file argv.c |
|||
* |
|||
* Portable command line argument parsing implementation. |
|||
* |
|||
* \copyright The DoubleFourteen Code Forge (C) All Rights Reserved |
|||
* \author Lorenzo Cogotti |
|||
*/ |
|||
|
|||
#include "argv.h" |
|||
|
|||
#include "sys/con.h" |
|||
#include "utf/utf.h" |
|||
|
|||
#include <assert.h> |
|||
#include <stdlib.h> // for getenv() on __GNUC__ |
|||
#include <string.h> |
|||
|
|||
const char *com_progName = NULL; |
|||
const char *com_synopsis = NULL; |
|||
const char *com_shortDescr = NULL; |
|||
const char *com_longDescr = NULL; |
|||
|
|||
#define OPT_ISLONLY(flag) ((flag)->opt == '-') |
|||
#define OPT_HASLONGNAM(flag) ((flag)->longopt != NULL) |
|||
#define OPT_ARGNAME(flag) (((flag)->argName) ? (flag)->argName : "arg") |
|||
|
|||
static void PrintHelpMessage(const char *prog, const Optflag *options) |
|||
{ |
|||
if (!prog) |
|||
return; // quiet parsing
|
|||
|
|||
Sys_Printf(STDOUT, "Usage: %s", prog); |
|||
if (com_synopsis) |
|||
Sys_Printf(STDOUT, " %s", com_synopsis); |
|||
|
|||
Sys_Print(STDOUT, "\n"); |
|||
if (com_shortDescr) |
|||
Sys_Printf(STDOUT, "%s\n", com_shortDescr); |
|||
|
|||
if (com_longDescr) |
|||
Sys_Printf(STDOUT, "\n%s\n\n", com_longDescr); |
|||
|
|||
char buf[MAXUTF + 1]; |
|||
size_t n; |
|||
|
|||
for (const Optflag *flag = options; flag->opt != '\0'; flag++) { |
|||
Sys_Print(STDOUT, " "); |
|||
|
|||
// Single char option name
|
|||
if (OPT_ISLONLY(flag)) { |
|||
// Long option only, leave 2 chars for alignment purposes
|
|||
assert(flag->longopt); |
|||
Sys_Print(STDOUT, " "); |
|||
|
|||
} else { |
|||
// Write down single-char option first
|
|||
n = runetochar(buf, flag->opt); |
|||
buf[n] = '\0'; |
|||
|
|||
Sys_Printf(STDOUT, "-%s", buf); |
|||
} |
|||
|
|||
// Long name and (optional) argument
|
|||
if (flag->longopt) { |
|||
// Write comma if necessary, or leave 2 spaces for alignment
|
|||
Sys_Print(STDOUT, OPT_ISLONLY(flag) ? " " : ", "); |
|||
Sys_Printf(STDOUT, "--%s", flag->longopt); |
|||
|
|||
// Append argument with a leading = sign
|
|||
switch (flag->hasArg) { |
|||
default: assert(FALSE); break; |
|||
case ARG_NONE: break; |
|||
case ARG_OPT: Sys_Printf(STDOUT, "[=%s]", OPT_ARGNAME(flag)); break; |
|||
case ARG_REQ: Sys_Printf(STDOUT, "=%s", OPT_ARGNAME(flag)); break; |
|||
} |
|||
} else { |
|||
// Output argument, short options have no leading =
|
|||
switch (flag->hasArg) { |
|||
default: assert(FALSE); break; |
|||
case ARG_NONE: break; |
|||
case ARG_OPT: Sys_Printf(STDOUT, " [%s]", OPT_ARGNAME(flag)); break; |
|||
case ARG_REQ: Sys_Printf(STDOUT, " <%s>", OPT_ARGNAME(flag)); break; |
|||
} |
|||
} |
|||
if (flag->descr) |
|||
Sys_Printf(STDOUT, "\t%s", flag->descr); |
|||
|
|||
Sys_Print(STDOUT, "\n"); |
|||
} |
|||
|
|||
// Append help options
|
|||
Sys_Print(STDOUT, " -h, --help\tPrint this help message\n"); |
|||
Sys_Print(STDOUT, " -?\tEquivalent to -h\n"); |
|||
} |
|||
|
|||
// If `prog` is not NULL, output an excess argument error (only called for long options).
|
|||
static void PrintExcessArgError(const char *prog, |
|||
const Optflag *flag, |
|||
const char *arg) |
|||
{ |
|||
if (!prog) |
|||
return; // quiet parse
|
|||
|
|||
assert(flag->longopt); |
|||
|
|||
Sys_Printf(STDERR, "%s: Option --%s takes no argument: --%s=%s", prog, flag->longopt, flag->longopt, arg); |
|||
} |
|||
|
|||
static void PrintMissingArgError(const char *prog, const Optflag *flag, Boolean longName) |
|||
{ |
|||
if (!prog) |
|||
return; // quiet parse
|
|||
|
|||
char buf[MAXUTF+1]; |
|||
const char *nam = NULL; |
|||
const char *pfx = (longName) ? "--" : "-"; |
|||
|
|||
if (longName) |
|||
nam = flag->longopt; |
|||
|
|||
else { |
|||
size_t n = runetochar(buf, flag->opt); |
|||
buf[n] = '\0'; |
|||
|
|||
nam = buf; |
|||
} |
|||
|
|||
Sys_Printf(STDERR, "%s: Option", prog); |
|||
if (nam) |
|||
Sys_Printf(STDERR, " %s%s", pfx, nam); |
|||
|
|||
Sys_Print(STDERR, " requires mandatory argument"); |
|||
if (flag->argName) |
|||
Sys_Printf(STDERR, " <%s>", flag->argName); |
|||
|
|||
Sys_Printf(STDERR, ": %s%s\n", pfx, nam); |
|||
} |
|||
|
|||
CHECK_PRINTF(2, 0) static void PrintBadCmdLineError(const char *prog, |
|||
const char *fmt, |
|||
...) |
|||
{ |
|||
if (!prog) |
|||
return; // quiet parsing
|
|||
|
|||
va_list va; |
|||
|
|||
va_start(va, fmt); |
|||
Sys_Printf(STDERR, "%s: ", prog); |
|||
Sys_VPrintf(STDERR, fmt, va); |
|||
Sys_Print(STDERR, "\n"); |
|||
va_end(va); |
|||
} |
|||
|
|||
static Optflag *FindLongFlag(const char *p, char **optarg, const char *prog, Optflag *options) |
|||
{ |
|||
char *arg = strchr(p, '='); |
|||
|
|||
*optarg = arg; |
|||
|
|||
char *name; |
|||
if (arg) { |
|||
size_t n = arg - p; |
|||
name = (char *) alloca(n + 1); |
|||
|
|||
memcpy(name, p, n); |
|||
name[n] = '\0'; |
|||
} else |
|||
name = (char *) p; // safe
|
|||
|
|||
for (Optflag *flag = options; flag->opt != '\0'; flag++) { |
|||
if (OPT_HASLONGNAM(flag) && strcmp(flag->longopt, name) == 0) { |
|||
flag->flagged = TRUE; |
|||
return flag; |
|||
} |
|||
} |
|||
|
|||
if (prog) |
|||
Sys_Printf(STDERR, "%s: Unrecognized option: --%s\n", prog, name); |
|||
|
|||
return NULL; |
|||
} |
|||
|
|||
static Optflag *FindFlag(Rune r, const char *prog, Optflag *flags) |
|||
{ |
|||
for (Optflag *flag = flags; flag->opt != '\0'; flag++) { |
|||
// NOTE: options with long names are skipped (-- is end of argument list)
|
|||
if (flag->opt == r) { |
|||
flag->flagged = TRUE; |
|||
return flag; |
|||
} |
|||
} |
|||
|
|||
if (prog) { |
|||
char buf[MAXUTF + 1]; |
|||
|
|||
size_t n = runetochar(buf, r); |
|||
buf[n] = '\0'; |
|||
|
|||
Sys_Printf(STDERR, "%s: Unrecognized option: -%s\n", prog, buf); |
|||
} |
|||
return NULL; |
|||
} |
|||
|
|||
#ifdef __GNUC__ |
|||
static void ReorderArgv(int argc, char **argv, const Optflag *options) |
|||
{ |
|||
if (getenv("POSIXLY_CORRECT")) |
|||
return; // don't mess with argv is POSIX behavior is requested
|
|||
|
|||
USED(argc); USED(argv); USED(options); |
|||
// TODO
|
|||
} |
|||
|
|||
#endif |
|||
|
|||
int Com_ArgParse(int argc, char **argv, Optflag *options, unsigned flags) |
|||
{ |
|||
Optflag *flag; |
|||
|
|||
char *p, *optarg; |
|||
|
|||
// Initial setup
|
|||
char *prog = NULL; // FindFlag*() functions won't log on NULL `prog`
|
|||
if ((flags & ARG_QUIET) == 0) { |
|||
// Extract program name, so parsing outputs meaningful messages
|
|||
prog = (char *) com_progName; |
|||
if (!prog) { |
|||
// Generate from argv[0]
|
|||
prog = argv[0]; // TODO: basename(argv[0]);
|
|||
} |
|||
} |
|||
|
|||
#ifdef __GNUC__ |
|||
/* GNU allows program options in any order with respect to program
|
|||
* arguments, for example: |
|||
* ```c |
|||
* program file -cv |
|||
* ``` |
|||
* According to POSIX both `file` and `-cv` are program arguments. |
|||
* According to GNU `-cv` are options, `file` is a program argument. |
|||
* |
|||
* To do this GNU getopt() implicitly reorders `argv`. |
|||
*/ |
|||
if ((flags & ARG_NOREORD) == 0) |
|||
ReorderArgv(argc, argv, options); |
|||
#endif |
|||
|
|||
// Parse argument list
|
|||
int optind; |
|||
for (optind = 1; optind < argc; optind++) { |
|||
p = argv[optind]; |
|||
if (strcmp(p, "--") == 0) { |
|||
optind++; |
|||
break; // explicit end of command list
|
|||
} |
|||
|
|||
if (p[0] == '-' && p[1] == '-') { |
|||
// GNU style long option
|
|||
p += 2; |
|||
if (strcmp(p, "help") == 0) { |
|||
PrintHelpMessage(prog, options); |
|||
return OPT_HELP; |
|||
} |
|||
|
|||
flag = FindLongFlag(p, &optarg, prog, options); |
|||
if (!flag) |
|||
return OPT_UNKNOWN; |
|||
|
|||
if (!optarg && flag->hasArg) |
|||
optarg = argv[++optind]; // fetch argument from `argv`
|
|||
|
|||
if (optarg && flag->hasArg == ARG_NONE) { |
|||
PrintExcessArgError(prog, flag, optarg); |
|||
return OPT_EXCESSARG; |
|||
} |
|||
if (!optarg && flag->hasArg == ARG_REQ) { |
|||
PrintMissingArgError(prog, flag, /*longName=*/TRUE); |
|||
return OPT_ARGMISS; |
|||
} |
|||
|
|||
flag->optarg = optarg; |
|||
|
|||
} else if (p[0] == '-' && p[1] != '\0') { |
|||
// Unix-style single char option
|
|||
p++; |
|||
|
|||
do { |
|||
Rune r; |
|||
p += chartorune(&r, p); |
|||
if (r == '-') { |
|||
/* This can happen in events like: -a-c
|
|||
* where a->hasArg == ARG_NONE |
|||
* |
|||
* There is no way to fix this ambiguity safely: |
|||
* * if -c is an argument to -a then it is OPT_EXCESSARG error |
|||
* * if -a -- -c problematic because it's counterintuitive |
|||
* for the user |
|||
* (one could get surprising -c program arguments) |
|||
* * if we take it as -a --(force as option) -c it would be |
|||
* dangerous (sometimes -- is an option, sometimes an |
|||
* end of option list) |
|||
* |
|||
* NOTE: getopt() appears to do the last, and it's |
|||
* horrific |
|||
*/ |
|||
PrintBadCmdLineError(prog, "Ambiguous '-' in short options list: %s", argv[optind]); |
|||
return OPT_BADARGV; |
|||
} |
|||
|
|||
// Handle single char help requests
|
|||
if (r == '?' || r == 'h') { |
|||
PrintHelpMessage(prog, options); |
|||
return OPT_HELP; |
|||
} |
|||
|
|||
flag = FindFlag(r, prog, options); |
|||
if (!flag) |
|||
return OPT_UNKNOWN; |
|||
|
|||
optarg = NULL; |
|||
if (flag->hasArg) |
|||
optarg = (*p != '\0') ? p : argv[++optind]; |
|||
|
|||
if (!optarg && flag->hasArg == ARG_REQ) { |
|||
PrintMissingArgError(prog, flag, /*longName=*/FALSE); |
|||
return OPT_ARGMISS; |
|||
} |
|||
|
|||
flag->optarg = optarg; |
|||
|
|||
} while (*p != '\0'); |
|||
} |
|||
#if 0 && defined(_WIN32) // TODO
|
|||
else if (p[0] == '/' && p[1] != '\0') { |
|||
// DOS style option
|
|||
} |
|||
#endif |
|||
else { |
|||
// End of argument list, break the loop
|
|||
break; |
|||
} |
|||
} |
|||
|
|||
return optind; |
|||
} |
|||
File diff suppressed because it is too large
@ -0,0 +1,611 @@ |
|||
// SPDX-License-Identifier: LGPL-3.0-or-later
|
|||
|
|||
/**
|
|||
* \file bgp/bgp.c |
|||
* |
|||
* BGP message decoding. |
|||
* |
|||
* \copyright The DoubleFourteen Code Forge (C) All Rights Reserved |
|||
* \author Lorenzo Cogotti |
|||
*/ |
|||
|
|||
#include "bgp/bgp_local.h" |
|||
#include "sys/sys_local.h" |
|||
#include "sys/dbg.h" |
|||
#include "sys/endian.h" |
|||
#include "sys/ip.h" |
|||
#include "sys/con.h" |
|||
#include "argv.h" |
|||
#include "numlib.h" |
|||
|
|||
#include <assert.h> |
|||
#include <errno.h> |
|||
#include <stdio.h> |
|||
#include <stdlib.h> |
|||
#include <string.h> |
|||
|
|||
static const Uint8 bgp_marker[] = { |
|||
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
|||
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff |
|||
}; |
|||
|
|||
STATIC_ASSERT(sizeof(bgp_marker) == BGP_MARKER_LEN, "Malformed 'bgp_marker'"); |
|||
|
|||
static THREAD_LOCAL BgpErrStat bgp_errs; |
|||
|
|||
const char *Bgp_ErrorString(BgpRet code) |
|||