From 29877b7b775a0b7dc329c2fe191b8d04eb94aa54 Mon Sep 17 00:00:00 2001 From: June McEnroe Date: Wed, 6 Sep 2017 14:01:48 -0400 Subject: Move C code to bin, Makefile, AGPL --- LICENSE | 13 -- bin/.gitignore | 11 + bin/LICENSE | 661 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ bin/Makefile | 36 +++ bin/bri.c | 84 +++++++ bin/dtch.c | 262 ++++++++++++++++++++++ bin/hnel.c | 127 +++++++++++ bin/jrp.c | 285 +++++++++++++++++++++++ bin/pbd.c | 143 ++++++++++++ bin/wake.c | 55 +++++ bin/watch.c | 95 ++++++++ bin/xx.c | 129 +++++++++++ home/.bin/bri.c | 77 ------- home/.bin/dtch.c | 254 --------------------- home/.bin/hnel.c | 115 ---------- home/.bin/jrp.c | 273 ---------------------- home/.bin/pbd.c | 136 ----------- home/.bin/wake.c | 41 ---- home/.bin/watch.c | 100 --------- home/.bin/xx.c | 117 ---------- 20 files changed, 1888 insertions(+), 1126 deletions(-) delete mode 100644 LICENSE create mode 100644 bin/.gitignore create mode 100644 bin/LICENSE create mode 100644 bin/Makefile create mode 100644 bin/bri.c create mode 100644 bin/dtch.c create mode 100644 bin/hnel.c create mode 100644 bin/jrp.c create mode 100644 bin/pbd.c create mode 100644 bin/wake.c create mode 100644 bin/watch.c create mode 100644 bin/xx.c delete mode 100755 home/.bin/bri.c delete mode 100755 home/.bin/dtch.c delete mode 100755 home/.bin/hnel.c delete mode 100755 home/.bin/jrp.c delete mode 100755 home/.bin/pbd.c delete mode 100755 home/.bin/wake.c delete mode 100755 home/.bin/watch.c delete mode 100755 home/.bin/xx.c diff --git a/LICENSE b/LICENSE deleted file mode 100644 index d0bf3fe2..00000000 --- a/LICENSE +++ /dev/null @@ -1,13 +0,0 @@ -Copyright © 2015, June McEnroe - -Permission to use, copy, modify, and/or distribute this software for any -purpose with or without fee is hereby granted, provided that the above -copyright notice and this permission notice appear in all copies. - -THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES -WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF -MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR -ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN -ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF -OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. diff --git a/bin/.gitignore b/bin/.gitignore new file mode 100644 index 00000000..8d86f5a3 --- /dev/null +++ b/bin/.gitignore @@ -0,0 +1,11 @@ +atch +bri +dtch +hnel +jrp +pbcopy +pbd +pbpaste +wake +watch +xx diff --git a/bin/LICENSE b/bin/LICENSE new file mode 100644 index 00000000..dba13ed2 --- /dev/null +++ b/bin/LICENSE @@ -0,0 +1,661 @@ + GNU AFFERO GENERAL PUBLIC LICENSE + Version 3, 19 November 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU Affero General Public License is a free, copyleft license for +software and other kinds of works, specifically designed to ensure +cooperation with the community in the case of network server software. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. By contrast, +our General Public Licenses are intended to guarantee your freedom to +share and change all versions of a program--to make sure it remains free +software for all its users. + + When we speak of free software, we are referring to freedom, not +price. Our General Public Licenses are designed to make sure that you +have the freedom to distribute copies of free software (and charge for +them if you wish), that you receive source code or can get it if you +want it, that you can change the software or use pieces of it in new +free programs, and that you know you can do these things. + + Developers that use our General Public Licenses protect your rights +with two steps: (1) assert copyright on the software, and (2) offer +you this License which gives you legal permission to copy, distribute +and/or modify the software. + + A secondary benefit of defending all users' freedom is that +improvements made in alternate versions of the program, if they +receive widespread use, become available for other developers to +incorporate. Many developers of free software are heartened and +encouraged by the resulting cooperation. However, in the case of +software used on network servers, this result may fail to come about. +The GNU General Public License permits making a modified version and +letting the public access it on a server without ever releasing its +source code to the public. + + The GNU Affero General Public License is designed specifically to +ensure that, in such cases, the modified source code becomes available +to the community. It requires the operator of a network server to +provide the source code of the modified version running there to the +users of that server. Therefore, public use of a modified version, on +a publicly accessible server, gives the public access to the source +code of the modified version. + + An older license, called the Affero General Public License and +published by Affero, was designed to accomplish similar goals. This is +a different license, not a version of the Affero GPL, but Affero has +released a new version of the Affero GPL which permits relicensing under +this license. + + The precise terms and conditions for copying, distribution and +modification follow. + + TERMS AND CONDITIONS + + 0. Definitions. + + "This License" refers to version 3 of the GNU Affero General Public License. + + "Copyright" also means copyright-like laws that apply to other kinds of +works, such as semiconductor masks. + + "The Program" refers to any copyrightable work licensed under this +License. Each licensee is addressed as "you". "Licensees" and +"recipients" may be individuals or organizations. + + To "modify" a work means to copy from or adapt all or part of the work +in a fashion requiring copyright permission, other than the making of an +exact copy. The resulting work is called a "modified version" of the +earlier work or a work "based on" the earlier work. + + A "covered work" means either the unmodified Program or a work based +on the Program. + + To "propagate" a work means to do anything with it that, without +permission, would make you directly or secondarily liable for +infringement under applicable copyright law, except executing it on a +computer or modifying a private copy. Propagation includes copying, +distribution (with or without modification), making available to the +public, and in some countries other activities as well. + + To "convey" a work means any kind of propagation that enables other +parties to make or receive copies. Mere interaction with a user through +a computer network, with no transfer of a copy, is not conveying. + + An interactive user interface displays "Appropriate Legal Notices" +to the extent that it includes a convenient and prominently visible +feature that (1) displays an appropriate copyright notice, and (2) +tells the user that there is no warranty for the work (except to the +extent that warranties are provided), that licensees may convey the +work under this License, and how to view a copy of this License. If +the interface presents a list of user commands or options, such as a +menu, a prominent item in the list meets this criterion. + + 1. Source Code. + + The "source code" for a work means the preferred form of the work +for making modifications to it. "Object code" means any non-source +form of a work. + + A "Standard Interface" means an interface that either is an official +standard defined by a recognized standards body, or, in the case of +interfaces specified for a particular programming language, one that +is widely used among developers working in that language. + + The "System Libraries" of an executable work include anything, other +than the work as a whole, that (a) is included in the normal form of +packaging a Major Component, but which is not part of that Major +Component, and (b) serves only to enable use of the work with that +Major Component, or to implement a Standard Interface for which an +implementation is available to the public in source code form. A +"Major Component", in this context, means a major essential component +(kernel, window system, and so on) of the specific operating system +(if any) on which the executable work runs, or a compiler used to +produce the work, or an object code interpreter used to run it. + + The "Corresponding Source" for a work in object code form means all +the source code needed to generate, install, and (for an executable +work) run the object code and to modify the work, including scripts to +control those activities. However, it does not include the work's +System Libraries, or general-purpose tools or generally available free +programs which are used unmodified in performing those activities but +which are not part of the work. For example, Corresponding Source +includes interface definition files associated with source files for +the work, and the source code for shared libraries and dynamically +linked subprograms that the work is specifically designed to require, +such as by intimate data communication or control flow between those +subprograms and other parts of the work. + + The Corresponding Source need not include anything that users +can regenerate automatically from other parts of the Corresponding +Source. + + The Corresponding Source for a work in source code form is that +same work. + + 2. Basic Permissions. + + All rights granted under this License are granted for the term of +copyright on the Program, and are irrevocable provided the stated +conditions are met. This License explicitly affirms your unlimited +permission to run the unmodified Program. The output from running a +covered work is covered by this License only if the output, given its +content, constitutes a covered work. This License acknowledges your +rights of fair use or other equivalent, as provided by copyright law. + + You may make, run and propagate covered works that you do not +convey, without conditions so long as your license otherwise remains +in force. You may convey covered works to others for the sole purpose +of having them make modifications exclusively for you, or provide you +with facilities for running those works, provided that you comply with +the terms of this License in conveying all material for which you do +not control copyright. Those thus making or running the covered works +for you must do so exclusively on your behalf, under your direction +and control, on terms that prohibit them from making any copies of +your copyrighted material outside their relationship with you. + + Conveying under any other circumstances is permitted solely under +the conditions stated below. Sublicensing is not allowed; section 10 +makes it unnecessary. + + 3. Protecting Users' Legal Rights From Anti-Circumvention Law. + + No covered work shall be deemed part of an effective technological +measure under any applicable law fulfilling obligations under article +11 of the WIPO copyright treaty adopted on 20 December 1996, or +similar laws prohibiting or restricting circumvention of such +measures. + + When you convey a covered work, you waive any legal power to forbid +circumvention of technological measures to the extent such circumvention +is effected by exercising rights under this License with respect to +the covered work, and you disclaim any intention to limit operation or +modification of the work as a means of enforcing, against the work's +users, your or third parties' legal rights to forbid circumvention of +technological measures. + + 4. Conveying Verbatim Copies. + + You may convey verbatim copies of the Program's source code as you +receive it, in any medium, provided that you conspicuously and +appropriately publish on each copy an appropriate copyright notice; +keep intact all notices stating that this License and any +non-permissive terms added in accord with section 7 apply to the code; +keep intact all notices of the absence of any warranty; and give all +recipients a copy of this License along with the Program. + + You may charge any price or no price for each copy that you convey, +and you may offer support or warranty protection for a fee. + + 5. Conveying Modified Source Versions. + + You may convey a work based on the Program, or the modifications to +produce it from the Program, in the form of source code under the +terms of section 4, provided that you also meet all of these conditions: + + a) The work must carry prominent notices stating that you modified + it, and giving a relevant date. + + b) The work must carry prominent notices stating that it is + released under this License and any conditions added under section + 7. This requirement modifies the requirement in section 4 to + "keep intact all notices". + + c) You must license the entire work, as a whole, under this + License to anyone who comes into possession of a copy. This + License will therefore apply, along with any applicable section 7 + additional terms, to the whole of the work, and all its parts, + regardless of how they are packaged. This License gives no + permission to license the work in any other way, but it does not + invalidate such permission if you have separately received it. + + d) If the work has interactive user interfaces, each must display + Appropriate Legal Notices; however, if the Program has interactive + interfaces that do not display Appropriate Legal Notices, your + work need not make them do so. + + A compilation of a covered work with other separate and independent +works, which are not by their nature extensions of the covered work, +and which are not combined with it such as to form a larger program, +in or on a volume of a storage or distribution medium, is called an +"aggregate" if the compilation and its resulting copyright are not +used to limit the access or legal rights of the compilation's users +beyond what the individual works permit. Inclusion of a covered work +in an aggregate does not cause this License to apply to the other +parts of the aggregate. + + 6. Conveying Non-Source Forms. + + You may convey a covered work in object code form under the terms +of sections 4 and 5, provided that you also convey the +machine-readable Corresponding Source under the terms of this License, +in one of these ways: + + a) Convey the object code in, or embodied in, a physical product + (including a physical distribution medium), accompanied by the + Corresponding Source fixed on a durable physical medium + customarily used for software interchange. + + b) Convey the object code in, or embodied in, a physical product + (including a physical distribution medium), accompanied by a + written offer, valid for at least three years and valid for as + long as you offer spare parts or customer support for that product + model, to give anyone who possesses the object code either (1) a + copy of the Corresponding Source for all the software in the + product that is covered by this License, on a durable physical + medium customarily used for software interchange, for a price no + more than your reasonable cost of physically performing this + conveying of source, or (2) access to copy the + Corresponding Source from a network server at no charge. + + c) Convey individual copies of the object code with a copy of the + written offer to provide the Corresponding Source. This + alternative is allowed only occasionally and noncommercially, and + only if you received the object code with such an offer, in accord + with subsection 6b. + + d) Convey the object code by offering access from a designated + place (gratis or for a charge), and offer equivalent access to the + Corresponding Source in the same way through the same place at no + further charge. You need not require recipients to copy the + Corresponding Source along with the object code. If the place to + copy the object code is a network server, the Corresponding Source + may be on a different server (operated by you or a third party) + that supports equivalent copying facilities, provided you maintain + clear directions next to the object code saying where to find the + Corresponding Source. Regardless of what server hosts the + Corresponding Source, you remain obligated to ensure that it is + available for as long as needed to satisfy these requirements. + + e) Convey the object code using peer-to-peer transmission, provided + you inform other peers where the object code and Corresponding + Source of the work are being offered to the general public at no + charge under subsection 6d. + + A separable portion of the object code, whose source code is excluded +from the Corresponding Source as a System Library, need not be +included in conveying the object code work. + + A "User Product" is either (1) a "consumer product", which means any +tangible personal property which is normally used for personal, family, +or household purposes, or (2) anything designed or sold for incorporation +into a dwelling. In determining whether a product is a consumer product, +doubtful cases shall be resolved in favor of coverage. For a particular +product received by a particular user, "normally used" refers to a +typical or common use of that class of product, regardless of the status +of the particular user or of the way in which the particular user +actually uses, or expects or is expected to use, the product. A product +is a consumer product regardless of whether the product has substantial +commercial, industrial or non-consumer uses, unless such uses represent +the only significant mode of use of the product. + + "Installation Information" for a User Product means any methods, +procedures, authorization keys, or other information required to install +and execute modified versions of a covered work in that User Product from +a modified version of its Corresponding Source. The information must +suffice to ensure that the continued functioning of the modified object +code is in no case prevented or interfered with solely because +modification has been made. + + If you convey an object code work under this section in, or with, or +specifically for use in, a User Product, and the conveying occurs as +part of a transaction in which the right of possession and use of the +User Product is transferred to the recipient in perpetuity or for a +fixed term (regardless of how the transaction is characterized), the +Corresponding Source conveyed under this section must be accompanied +by the Installation Information. But this requirement does not apply +if neither you nor any third party retains the ability to install +modified object code on the User Product (for example, the work has +been installed in ROM). + + The requirement to provide Installation Information does not include a +requirement to continue to provide support service, warranty, or updates +for a work that has been modified or installed by the recipient, or for +the User Product in which it has been modified or installed. Access to a +network may be denied when the modification itself materially and +adversely affects the operation of the network or violates the rules and +protocols for communication across the network. + + Corresponding Source conveyed, and Installation Information provided, +in accord with this section must be in a format that is publicly +documented (and with an implementation available to the public in +source code form), and must require no special password or key for +unpacking, reading or copying. + + 7. Additional Terms. + + "Additional permissions" are terms that supplement the terms of this +License by making exceptions from one or more of its conditions. +Additional permissions that are applicable to the entire Program shall +be treated as though they were included in this License, to the extent +that they are valid under applicable law. If additional permissions +apply only to part of the Program, that part may be used separately +under those permissions, but the entire Program remains governed by +this License without regard to the additional permissions. + + When you convey a copy of a covered work, you may at your option +remove any additional permissions from that copy, or from any part of +it. (Additional permissions may be written to require their own +removal in certain cases when you modify the work.) You may place +additional permissions on material, added by you to a covered work, +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. Remote Network Interaction; Use with the GNU General Public License. + + Notwithstanding any other provision of this License, if you modify the +Program, your modified version must prominently offer all users +interacting with it remotely through a computer network (if your version +supports such interaction) an opportunity to receive the Corresponding +Source of your version by providing access to the Corresponding Source +from a network server at no charge, through some standard or customary +means of facilitating copying of software. This Corresponding Source +shall include the Corresponding Source for any work covered by version 3 +of the GNU General Public License that is incorporated pursuant to the +following paragraph. + + 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 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 work with which it is combined will remain governed by version +3 of the GNU General Public License. + + 14. Revised Versions of this License. + + The Free Software Foundation may publish revised and/or new versions of +the GNU Affero 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 Affero 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 Affero 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 Affero 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. + + + Copyright (C) + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU Affero 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 Affero General Public License for more details. + + You should have received a copy of the GNU Affero General Public License + along with this program. If not, see . + +Also add information on how to contact you by electronic and paper mail. + + If your software can interact with users remotely through a computer +network, you should also make sure that it provides a way for users to +get its source. For example, if your program is a web application, its +interface could display a "Source" link that leads users to an archive +of the code. There are many ways you could offer source, and different +solutions will be better for different programs; see section 13 for the +specific requirements. + + 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 AGPL, see +. diff --git a/bin/Makefile b/bin/Makefile new file mode 100644 index 00000000..62a50309 --- /dev/null +++ b/bin/Makefile @@ -0,0 +1,36 @@ +BINS = atch bri dtch hnel jrp pbcopy pbd pbpaste wake watch xx +CWARNS = -Wall -Wextra -Wpedantic + +all: $(BINS) + +%: %.c + $(CC) $(CWARNS) $(CFLAGS) -o $@ $< + +atch: dtch + ln -f dtch atch + +dtch: dtch.c + $(CC) $(CWARNS) $(CFLAGS) -lutil -o dtch dtch.c + +hnel: hnel.c + $(CC) $(CWARNS) $(CFLAGS) -lutil -o hnel hnel.c + +jrp: jrp.c + $(CC) $(CWARNS) $(CFLAGS) -ledit -o jrp jrp.c + +pbcopy: pbd + ln -f pbd pbcopy + +pbpaste: pbd + ln -f pbd pbpaste + +clean: + rm -f $(BINS) + +link: $(BINS) + ln -s -f $(BINS:%=$(PWD)/%) ~/.bin + +unlink: + rm -f $(BINS:%=~/.bin/%) + +.PHONY: all clean link unlink diff --git a/bin/bri.c b/bin/bri.c new file mode 100644 index 00000000..5760c0cd --- /dev/null +++ b/bin/bri.c @@ -0,0 +1,84 @@ +/* Backlight brightness control. + * + * Copyright (c) 2017, June McEnroe + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero 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 Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see . + */ + +#include +#include +#include +#include +#include +#include +#include + +static const char *CLASS = "/sys/class/backlight"; + +int main(int argc, char *argv[]) { + int error; + + if (argc < 2) errx(EX_USAGE, "usage: bri N | +... | -..."); + + error = chdir(CLASS); + if (error) err(EX_IOERR, "%s", CLASS); + + DIR *dir = opendir("."); + if (!dir) err(EX_IOERR, "%s", CLASS); + + struct dirent *entry; + while (NULL != (errno = 0, entry = readdir(dir))) { + if (entry->d_name[0] == '.') continue; + + error = chdir(entry->d_name); + if (error) err(EX_IOERR, "%s", entry->d_name); + break; + } + if (!entry) { + if (errno) err(EX_IOERR, "%s", CLASS); + errx(EX_CONFIG, "empty %s", CLASS); + } + + char *value = argv[1]; + + if (value[0] == '+' || value[0] == '-') { + FILE *actual = fopen("actual_brightness", "r"); + if (!actual) err(EX_IOERR, "actual_brightness"); + + unsigned int brightness; + int match = fscanf(actual, "%u", &brightness); + if (match == EOF) err(EX_IOERR, "actual_brightness"); + if (match < 1) err(EX_DATAERR, "actual_brightness"); + + size_t count = strnlen(value, 15); + if (value[0] == '+') { + brightness += 16 * count; + } else { + brightness -= 16 * count; + } + + char buf[15]; + snprintf(buf, sizeof(buf), "%u", brightness); + + value = buf; + } + + FILE *brightness = fopen("brightness", "w"); + if (!brightness) err(EX_IOERR, "brightness"); + + int count = fprintf(brightness, "%s", value); + if (count < 0) err(EX_IOERR, "brightness"); + + return EX_OK; +} diff --git a/bin/dtch.c b/bin/dtch.c new file mode 100644 index 00000000..74719fba --- /dev/null +++ b/bin/dtch.c @@ -0,0 +1,262 @@ +/* Session attach and detach. + * + * Copyright (c) 2017, June McEnroe + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero 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 Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see . + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#if defined __FreeBSD__ +#include +#elif defined __linux__ +#include +#else +#include +#endif + +static struct passwd *getUser(void) { + uid_t uid = getuid(); + struct passwd *user = getpwuid(uid); + if (!user) err(EX_OSFILE, "/etc/passwd"); + return user; +} + +static struct sockaddr_un sockAddr(const char *home, const char *name) { + struct sockaddr_un addr = { .sun_family = AF_LOCAL }; + snprintf(addr.sun_path, sizeof(addr.sun_path), "%s/.dtch/%s", home, name); + return addr; +} + +static ssize_t writeAll(int fd, const char *buf, size_t len) { + ssize_t writeLen; + while (0 < (writeLen = write(fd, buf, len))) { + buf += writeLen; + len -= writeLen; + } + return writeLen; +} + +char z; +struct iovec iov = { .iov_base = &z, .iov_len = 1 }; + +static ssize_t sendFd(int sock, int fd) { + size_t len = CMSG_LEN(sizeof(int)); + char buf[len]; + struct msghdr msg = { + .msg_iov = &iov, + .msg_iovlen = 1, + .msg_control = buf, + .msg_controllen = len, + }; + + struct cmsghdr *cmsg = CMSG_FIRSTHDR(&msg); + cmsg->cmsg_len = len; + cmsg->cmsg_level = SOL_SOCKET; + cmsg->cmsg_type = SCM_RIGHTS; + *(int *)CMSG_DATA(cmsg) = fd; + + return sendmsg(sock, &msg, 0); +} + +static int recvFd(int sock) { + size_t len = CMSG_LEN(sizeof(int)); + char buf[len]; + struct msghdr msg = { + .msg_iov = &iov, + .msg_iovlen = 1, + .msg_control = buf, + .msg_controllen = len, + }; + + ssize_t n = recvmsg(sock, &msg, 0); + if (n < 0) return -1; + + struct cmsghdr *cmsg = CMSG_FIRSTHDR(&msg); + if (!cmsg) { errno = ENOMSG; return -1; } + if (cmsg->cmsg_type != SCM_RIGHTS) { errno = EBADMSG; return -1; } + + return *(int *)CMSG_DATA(cmsg); +} + +static struct sockaddr_un addr; + +static void unlinkAddr(void) { + unlink(addr.sun_path); +} + +static int dtch(int argc, char *argv[]) { + int error; + + struct passwd *user = getUser(); + + char *name = user->pw_name; + char *cmd = user->pw_shell; + if (argc > 2) { + name = argv[1]; + cmd = argv[2]; + argv += 2; + } else if (argc > 1) { + name = argv[1]; + argv++; + } + + int home = open(user->pw_dir, 0); + if (home < 0) err(EX_IOERR, "%s", user->pw_dir); + error = mkdirat(home, ".dtch", S_IRWXU); + if (error && errno != EEXIST) err(EX_IOERR, "%s/.dtch", user->pw_dir); + error = close(home); + if (error) err(EX_IOERR, "%s", user->pw_dir); + + int server = socket(PF_LOCAL, SOCK_STREAM, 0); + if (server < 0) err(EX_OSERR, "socket"); + + addr = sockAddr(user->pw_dir, name); + error = bind(server, (struct sockaddr *)&addr, sizeof(addr)); + if (error) err(EX_IOERR, "%s", addr.sun_path); + atexit(unlinkAddr); + + error = chmod(addr.sun_path, 0600); + if (error) err(EX_IOERR, "%s", addr.sun_path); + + int master; + pid_t pid = forkpty(&master, NULL, NULL, NULL); + if (pid < 0) err(EX_OSERR, "forkpty"); + + if (!pid) { + error = close(server); + if (error) warn("close(%d)", server); + execvp(cmd, argv); + err(EX_OSERR, "%s", cmd); + } + + error = listen(server, 0); + if (error) err(EX_OSERR, "listen"); + + for (;;) { + int client = accept(server, NULL, NULL); + if (client < 0) err(EX_IOERR, "accept(%d)", server); + + ssize_t len = sendFd(client, master); + if (len < 0) warn("sendmsg(%d)", client); + + len = recv(client, &z, sizeof(z), 0); + if (len < 0) warn("recv(%d)", client); + + error = close(client); + if (error) warn("close(%d)", client); + + pid_t dead = waitpid(pid, NULL, WNOHANG); + if (dead < 0) warn("waitpid(%d)", pid); + if (dead) exit(EX_OK); + } +} + +static struct termios saveTerm; + +static void restoreTerm(void) { + tcsetattr(STDERR_FILENO, TCSADRAIN, &saveTerm); + printf( + "\x1b[?1049l" // rmcup + "\x1b\x63\x1b[!p\x1b[?3;4l\x1b[4l\x1b>" // reset + ); +} + +static int atch(int argc, char *argv[]) { + int error; + + struct passwd *user = getUser(); + char *name = (argc > 1) ? argv[1] : user->pw_name; + + int client = socket(PF_LOCAL, SOCK_STREAM, 0); + if (client < 0) err(EX_OSERR, "socket"); + + struct sockaddr_un addr = sockAddr(user->pw_dir, name); + error = connect(client, (struct sockaddr *)&addr, sizeof(addr)); + if (error) err(EX_IOERR, "%s", addr.sun_path); + + int master = recvFd(client); + if (master < 0) err(EX_IOERR, "recvmsg(%d)", client); + + struct winsize window; + error = ioctl(STDERR_FILENO, TIOCGWINSZ, &window); + if (error) err(EX_IOERR, "ioctl(%d, TIOCGWINSZ)", STDERR_FILENO); + + error = ioctl(master, TIOCSWINSZ, &window); + if (error) err(EX_IOERR, "ioctl(%d, TIOCSWINSZ)", master); + + error = tcgetattr(STDERR_FILENO, &saveTerm); + if (error) err(EX_IOERR, "tcgetattr(%d)", STDERR_FILENO); + atexit(restoreTerm); + + struct termios raw; + cfmakeraw(&raw); + error = tcsetattr(STDERR_FILENO, TCSADRAIN, &raw); + if (error) err(EX_IOERR, "tcsetattr(%d)", STDERR_FILENO); + + char ctrlL = CTRL('L'); + ssize_t len = write(master, &ctrlL, 1); + if (len < 0) err(EX_IOERR, "write(%d)", master); + + struct pollfd fds[2] = { + { .fd = STDIN_FILENO, .events = POLLIN }, + { .fd = master, .events = POLLIN }, + }; + + while (0 < poll(fds, 2, -1)) { + char buf[4096]; + ssize_t len; + + if (fds[0].revents) { + len = read(STDIN_FILENO, buf, sizeof(buf)); + if (len < 0) err(EX_IOERR, "read(%d)", STDIN_FILENO); + + if (len && buf[0] == CTRL('Q')) exit(EX_OK); + + len = writeAll(master, buf, len); + if (len < 0) err(EX_IOERR, "write(%d)", master); + } + + if (fds[1].revents) { + len = read(master, buf, sizeof(buf)); + if (len < 0) err(EX_IOERR, "read(%d)", master); + len = writeAll(STDOUT_FILENO, buf, len); + if (len < 0) err(EX_IOERR, "write(%d)", STDOUT_FILENO); + } + } + err(EX_IOERR, "poll([%d,%d])", STDIN_FILENO, master); +} + +int main(int argc, char *argv[]) { + switch (argv[0][0]) { + case 'd': return dtch(argc, argv); + case 'a': return atch(argc, argv); + } + return EX_USAGE; +} diff --git a/bin/hnel.c b/bin/hnel.c new file mode 100644 index 00000000..03b8c7a8 --- /dev/null +++ b/bin/hnel.c @@ -0,0 +1,127 @@ +/* PTY wrapper for preserving HJKL in Tarmak layouts. + * + * Copyright (c) 2017, June McEnroe + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero 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 Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see . + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#if defined __FreeBSD__ +#include +#elif defined __linux__ +#include +#else +#include +#endif + +static char table[256] = { + ['n'] = 'j', ['N'] = 'J', [CTRL('N')] = CTRL('J'), + ['e'] = 'k', ['E'] = 'K', [CTRL('E')] = CTRL('K'), + ['j'] = 'e', ['J'] = 'E', [CTRL('J')] = CTRL('E'), + ['k'] = 'n', ['K'] = 'N', [CTRL('K')] = CTRL('N'), +}; + +static ssize_t writeAll(int fd, const char *buf, size_t len) { + ssize_t writeLen; + while (0 < (writeLen = write(fd, buf, len))) { + buf += writeLen; + len -= writeLen; + } + return writeLen; +} + +static struct termios saveTerm; + +static void restoreTerm(void) { + tcsetattr(STDERR_FILENO, TCSADRAIN, &saveTerm); +} + +int main(int argc, char *argv[]) { + int error; + + if (argc < 2) return EX_USAGE; + + error = tcgetattr(STDERR_FILENO, &saveTerm); + if (error) err(EX_IOERR, "tcgetattr"); + atexit(restoreTerm); + + struct termios raw; + cfmakeraw(&raw); + error = tcsetattr(STDERR_FILENO, TCSADRAIN, &raw); + if (error) err(EX_IOERR, "tcsetattr"); + + struct winsize window; + error = ioctl(STDERR_FILENO, TIOCGWINSZ, &window); + if (error) err(EX_IOERR, "ioctl(%d, TIOCGWINSZ)", STDERR_FILENO); + + int master; + pid_t pid = forkpty(&master, NULL, NULL, &window); + if (pid < 0) err(EX_OSERR, "forkpty"); + + if (!pid) { + execvp(argv[1], argv + 1); + err(EX_OSERR, "%s", argv[1]); + } + + bool enable = true; + + struct pollfd fds[2] = { + { .fd = STDIN_FILENO, .events = POLLIN }, + { .fd = master, .events = POLLIN }, + }; + while (0 < poll(fds, 2, -1)) { + char buf[4096]; + ssize_t len; + + if (fds[0].revents) { + len = read(STDIN_FILENO, buf, sizeof(buf)); + if (len < 0) err(EX_IOERR, "read(%d)", STDIN_FILENO); + + if (len == 1) { + if (buf[0] == CTRL('S')) { + enable = !enable; + continue; + } + + unsigned char c = buf[0]; + if (enable && table[c]) buf[0] = table[c]; + } + + len = writeAll(master, buf, len); + if (len < 0) err(EX_IOERR, "write(%d)", master); + } + + if (fds[1].revents) { + len = read(master, buf, sizeof(buf)); + if (len < 0) err(EX_IOERR, "read(%d)", master); + len = writeAll(STDOUT_FILENO, buf, len); + if (len < 0) err(EX_IOERR, "write(%d)", STDOUT_FILENO); + } + + int status; + pid_t dead = waitpid(pid, &status, WNOHANG); + if (dead < 0) err(EX_OSERR, "waitpid(%d)", pid); + if (dead) return WIFEXITED(status) ? WEXITSTATUS(status) : EX_SOFTWARE; + } + err(EX_IOERR, "poll"); +} diff --git a/bin/jrp.c b/bin/jrp.c new file mode 100644 index 00000000..9fa3dcc1 --- /dev/null +++ b/bin/jrp.c @@ -0,0 +1,285 @@ +/* JIT RPN calculator. + * + * Copyright (c) 2017, June McEnroe + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero 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 Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see . + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +typedef unsigned long qop; +typedef unsigned int dop; + +typedef long qvalue; +typedef int dvalue; +typedef unsigned long uvalue; + +typedef qvalue *(*jitFn)(qvalue *); +typedef void (*rtFn)(qvalue); + +static char *formatBin(qvalue val) { + static char buf[sizeof(qvalue) * 8 + 1]; + uvalue uval = val; + size_t i = sizeof(buf); + do { + buf[--i] = '0' + (uval & 1); + } while (uval >>= 1); + return &buf[i]; +} + +static void rtPrintAscii(qvalue val) { + printf("%c\n", (char)val); +} +static void rtPrintBin(qvalue val) { + printf("%s\n", formatBin(val)); +} +static void rtPrintOct(qvalue val) { + printf("%lo\n", val); +} +static void rtPrintDec(qvalue val) { + printf("%ld\n", val); +} +static void rtPrintHex(qvalue val) { + printf("%lx\n", val); +} + +static const dop DOP_NOP = 0x90666666; // nop +static const dop DOP_PUSH = 0xc7c74857; // push rdi; mov rdi, strict dword 0 +static const dop DOP_DROP = 0x9066665f; // pop rdi +static const dop DOP_DUP = 0x90666657; // push rdi +static const dop DOP_SWAP = 0x243c8748; // xchg rdi, [rsp] +static const dop DOP_NEG = 0x90dff748; // neg rdi +static const dop DOP_ADD = 0xc7014858; // pop rax; add rdi, rax +static const dop DOP_QUO = 0x90c78948; // mov rdi, rax +static const dop DOP_REM = 0x90d78948; // mov rdi, rdx +static const dop DOP_NOT = 0x90d7f748; // not rdi +static const dop DOP_AND = 0xc7214858; // pop rax; and rdi, rax +static const dop DOP_OR = 0xc7094858; // pop rax; or rdi, rax +static const dop DOP_XOR = 0xc7314858; // pop rax; xor rdi, rax + +static const qop QOP_PROL = 0x5ffc8948e5894855; // push rbp; mov rbp, rsp; mov rsp, rdi; pop rdi +static const qop QOP_EPIL = 0x5dec8948e0894857; // push rdi; mov rax, rsp; mov rsp, rbp; pop rbp +static const qop QOP_RET = 0x90666666906666c3; // ret +static const qop QOP_CRT = 0xb848906690e58748; // xchg rsp, rbp; mov rax, strict qword 0 +static const qop QOP_CALL = 0x90665fe58748d0ff; // call rax; xchg rsp, rbp; pop rdi +static const qop QOP_PUSH = 0xbf48906690666657; // push rdi; mov rdi, strict qword 0 +static const qop QOP_SUB = 0x9066665f243c2948; // sub [rsp], rdi; pop rdi +static const qop QOP_MUL = 0x906666f8af0f4858; // pop rax; imul rdi, rax +static const qop QOP_DIV = 0x9066fff748994858; // pop rax; cqo; idiv rdi +static const qop QOP_SHL = 0x5f2424d348f98948; // mov rcx, rdi; shl qword [rsp], cl; pop rdi +static const qop QOP_SHR = 0x5f242cd348f98948; // mov rcx, rdi; shr qword [rsp], cl; pop rdi + +static int radix = 10; + +static struct { + qop *base; + qop *ptr; + dop dop; +} code; + +static struct { + qvalue *base; + qvalue *limit; + qvalue *ptr; +} stack; + +static void jitDop(dop op) { + if (code.dop) { + *code.ptr++ = (qop)op << 32 | code.dop; + code.dop = 0; + } else { + code.dop = op; + } +} + +static void jitQop(qop op) { + if (code.dop) jitDop(DOP_NOP); + *code.ptr++ = op; +} + +static void jitPush(qvalue imm) { + if ((dvalue)imm == imm) { + jitQop(DOP_PUSH | (qop)imm << 32); + } else { + jitQop(QOP_PUSH); + jitQop((qop)imm); + } +} + +static void jitCall(rtFn fn) { + jitQop(QOP_CRT); + jitQop((qop)fn); + jitQop(QOP_CALL); +} + +static void jitBegin(void) { + code.ptr = code.base; + jitQop(QOP_PROL); +} + +static void jitEnd(void) { + jitQop(QOP_EPIL); + jitQop(QOP_RET); +} + +static void jitInit(void) { + code.base = mmap(0, getpagesize(), PROT_READ | PROT_WRITE, MAP_ANON | MAP_PRIVATE, -1, 0); + if (code.base == MAP_FAILED) err(EX_OSERR, "mmap"); +} + +static void stackInit(void) { + stack.base = mmap(0, 2 * getpagesize(), PROT_READ | PROT_WRITE, MAP_ANON | MAP_PRIVATE, -1, 0); + if (stack.base == MAP_FAILED) err(EX_OSERR, "mmap"); + stack.limit = stack.base + getpagesize() / sizeof(qvalue); + stack.ptr = stack.limit; +} + +static void jitExec(void) { + int error; + error = mprotect(code.base, getpagesize(), PROT_READ | PROT_EXEC); + if (error) err(EX_OSERR, "mprotect"); + stack.ptr = ((jitFn)code.base)(stack.ptr); + if (stack.ptr > stack.limit) stack.ptr = stack.limit; + error = mprotect(code.base, getpagesize(), PROT_READ | PROT_WRITE); + if (error) err(EX_OSERR, "mprotect"); +} + +static void jitSrc(const char *src) { + bool quote = false; + while (*src) { + if (quote) { + jitPush(*src++); + quote = false; + continue; + } + + switch (*src) { + case ' ': break; + case 39: quote = true; break; + case 'B': radix = 2; break; + case 'O': radix = 8; break; + case 'D': radix = 10; break; + case 'X': radix = 16; break; + case ';': jitDop(DOP_DROP); break; + case ':': jitDop(DOP_DUP); break; + case 92: jitDop(DOP_SWAP); break; + case '_': jitDop(DOP_NEG); break; + case '+': jitDop(DOP_ADD); break; + case '-': jitQop(QOP_SUB); break; + case '*': jitQop(QOP_MUL); break; + case '/': jitQop(QOP_DIV); jitDop(DOP_QUO); break; + case '%': jitQop(QOP_DIV); jitDop(DOP_REM); break; + case '~': jitDop(DOP_NOT); break; + case '&': jitDop(DOP_AND); break; + case '|': jitDop(DOP_OR); break; + case '^': jitDop(DOP_XOR); break; + case '<': jitQop(QOP_SHL); break; + case '>': jitQop(QOP_SHR); break; + case ',': jitCall(rtPrintAscii); break; + case '.': switch (radix) { + case 2: jitCall(rtPrintBin); break; + case 8: jitCall(rtPrintOct); break; + case 10: jitCall(rtPrintDec); break; + case 16: jitCall(rtPrintHex); break; + } break; + + default: { + char *rest; + qvalue val = strtol(src, &rest, radix); + if (rest != src) { + src = rest; + jitPush(val); + continue; + } + } + } + + src++; + } +} + +static void jitDump(const char *path, FILE *file) { + size_t nitems = code.ptr - code.base; + size_t written = fwrite(code.base, sizeof(qop), nitems, file); + if (written < nitems) err(EX_IOERR, "%s", path); +} + +static char *prompt(EditLine *el __attribute((unused))) { + static char buf[4096]; + char *bufPtr = buf; + for (qvalue *stackPtr = stack.limit - 1; stackPtr >= stack.ptr; --stackPtr) { + size_t bufLen = sizeof(buf) - (bufPtr - buf) - 2; + switch (radix) { + case 2: bufPtr += snprintf(bufPtr, bufLen, " %s", formatBin(*stackPtr)); break; + case 8: bufPtr += snprintf(bufPtr, bufLen, " %lo", *stackPtr); break; + case 10: bufPtr += snprintf(bufPtr, bufLen, " %ld", *stackPtr); break; + case 16: bufPtr += snprintf(bufPtr, bufLen, " %lx", *stackPtr); break; + } + } + buf[0] = '['; + if (bufPtr == buf) bufPtr++; + *bufPtr++ = ']'; + *bufPtr++ = ' '; + *bufPtr = 0; + return buf; +} + +int main(int argc, char *argv[]) { + FILE *file = NULL; + char *path = getenv("JRP_DUMP"); + if (path) { + file = fopen(path, "w"); + if (!file) err(EX_CANTCREAT, "%s", path); + } + + jitInit(); + stackInit(); + + if (argc > 1) { + jitBegin(); + for (int i = 1; i < argc; ++i) + jitSrc(argv[i]); + jitEnd(); + if (file) jitDump(path, file); + jitExec(); + return EX_OK; + } + + EditLine *el = el_init(argv[0], stdin, stdout, stderr); + el_set(el, EL_PROMPT, prompt); + el_set(el, EL_SIGNAL, true); + + for (;;) { + int count; + const char *line = el_gets(el, &count); + if (count < 0) err(EX_IOERR, "el_gets"); + if (!line) break; + + jitBegin(); + jitSrc(line); + jitEnd(); + if (file) jitDump(path, file); + jitExec(); + } + + el_end(el); + return EX_OK; +} diff --git a/bin/pbd.c b/bin/pbd.c new file mode 100644 index 00000000..fcc5d2cf --- /dev/null +++ b/bin/pbd.c @@ -0,0 +1,143 @@ +/* TCP server which pipes between macOS pbcopy and pbpaste, and pbcopy and + * pbpaste implementations which connect to it. + * + * Copyright (c) 2017, June McEnroe + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero 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 Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see . + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +static void spawn(const char *cmd, int childFd, int parentFd) { + pid_t pid = fork(); + if (pid < 0) err(EX_OSERR, "fork"); + + if (pid) { + int status; + pid_t wait = waitpid(pid, &status, 0); + if (wait < 0) err(EX_OSERR, "waitpid"); + + if (status) { + warnx("child %s status %d", cmd, status); + } + } else { + int fd = dup2(parentFd, childFd); + if (fd < 0) err(EX_OSERR, "dup2"); + + int error = execlp(cmd, cmd, NULL); + if (error) err(EX_OSERR, "execlp"); + } +} + +static int pbd(void) { + int error; + + int server = socket(PF_INET, SOCK_STREAM, 0); + if (server < 0) err(EX_OSERR, "socket"); + + struct sockaddr_in addr = { + .sin_family = AF_INET, + .sin_port = htons(7062), + .sin_addr = { .s_addr = htonl(0x7f000001) }, + }; + + error = bind(server, (struct sockaddr *)&addr, sizeof(addr)); + if (error) err(EX_OSERR, "bind"); + + error = listen(server, 1); + if (error) err(EX_OSERR, "listen"); + + for (;;) { + int client = accept(server, NULL, NULL); + if (client < 0) err(EX_OSERR, "accept"); + + spawn("pbpaste", STDOUT_FILENO, client); + + uint8_t p; + ssize_t peek = recv(client, &p, 1, MSG_PEEK); + if (peek < 0) err(EX_IOERR, "recv"); + + if (peek) { + spawn("pbcopy", STDIN_FILENO, client); + } + + error = close(client); + if (error) err(EX_IOERR, "close"); + } +} + +static int pbdClient(void) { + int client = socket(PF_INET, SOCK_STREAM, 0); + if (client < 0) err(EX_OSERR, "socket"); + + struct sockaddr_in addr = { + .sin_family = AF_INET, + .sin_port = htons(7062), + .sin_addr = { .s_addr = htonl(0x7f000001) }, + }; + + int error = connect(client, (struct sockaddr *)&addr, sizeof(addr)); + if (error) err(EX_OSERR, "connect"); + + return client; +} + +static void copy(int fdIn, int fdOut) { + char readBuf[4096]; + ssize_t readLen; + while (0 < (readLen = read(fdIn, readBuf, sizeof(readBuf)))) { + char *writeBuf = readBuf; + ssize_t writeLen; + while (0 < (writeLen = write(fdOut, writeBuf, readLen))) { + writeBuf += writeLen; + readLen -= writeLen; + } + if (writeLen < 0) err(EX_IOERR, "write"); + } + if (readLen < 0) err(EX_IOERR, "read"); +} + +static int pbcopy(void) { + int client = pbdClient(); + copy(STDIN_FILENO, client); + return EX_OK; +} + +static int pbpaste(void) { + int client = pbdClient(); + int error = shutdown(client, SHUT_WR); + if (error) err(EX_OSERR, "shutdown"); + copy(client, STDOUT_FILENO); + return EX_OK; +} + +int main(int argc __attribute((unused)), char *argv[]) { + if (!argv[0][0] || !argv[0][1]) return EX_USAGE; + switch (argv[0][2]) { + case 'd': return pbd(); + case 'c': return pbcopy(); + case 'p': return pbpaste(); + } + return EX_USAGE; +} diff --git a/bin/wake.c b/bin/wake.c new file mode 100644 index 00000000..07a2ef37 --- /dev/null +++ b/bin/wake.c @@ -0,0 +1,55 @@ +/* Wake-on-LAN. + * + * Copyright (c) 2017, June McEnroe + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero 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 Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see . + */ + +#include +#include +#include +#include +#include +#include + +#define MAC 0x04, 0x7D, 0x7B, 0xD5, 0x6A, 0x53 + +const uint8_t payload[] = { + 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, + MAC, MAC, MAC, MAC, MAC, MAC, MAC, MAC, + MAC, MAC, MAC, MAC, MAC, MAC, MAC, MAC, +}; + +int main() { + int sock = socket(PF_INET, SOCK_DGRAM, 0); + if (sock < 0) err(EX_OSERR, "socket"); + + int on = 1; + int error = setsockopt(sock, SOL_SOCKET, SO_BROADCAST, &on, sizeof(on)); + if (error) err(EX_OSERR, "setsockopt"); + + struct sockaddr_in addr = { + .sin_family = AF_INET, + .sin_port = 9, + .sin_addr.s_addr = INADDR_BROADCAST, + }; + + ssize_t len = sendto( + sock, payload, sizeof(payload), 0, + (struct sockaddr *)&addr, sizeof(addr) + ); + if (len < 0) err(EX_IOERR, "sendto"); + + return EX_OK; +} diff --git a/bin/watch.c b/bin/watch.c new file mode 100644 index 00000000..22bd5197 --- /dev/null +++ b/bin/watch.c @@ -0,0 +1,95 @@ +/* Execute a command each time files change. + * + * Copyright (c) 2017, June McEnroe + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero 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 Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see . + */ + +#include + +#include +#include +#include +#include +#include +#include +#include + +static void watch(int kq, char *path) { + int fd = open(path, O_RDONLY); + if (fd < 0) err(EX_IOERR, "%s", path); + + struct kevent event = { + .ident = fd, + .filter = EVFILT_VNODE, + .flags = EV_ADD | EV_CLEAR, + .fflags = NOTE_WRITE | NOTE_DELETE, + .udata = path, + }; + int nevents = kevent(kq, &event, 1, NULL, 0, NULL); + if (nevents < 0) err(EX_IOERR, "kevent"); +} + +static void exec(char *const argv[]) { + pid_t pid = fork(); + if (pid < 0) err(EX_OSERR, "fork"); + + if (!pid) { + execvp(argv[0], argv); + err(EX_OSERR, "%s", argv[0]); + } + + int status; + pid = wait(&status); + if (pid < 0) err(EX_OSERR, "wait"); + + if (WIFEXITED(status)) { + warnx("exit %d", WEXITSTATUS(status)); + } else if (WIFSIGNALED(status)) { + warnx("signal %d", WTERMSIG(status)); + } else { + warnx("status %d", status); + } +} + +int main(int argc, char *argv[]) { + if (argc < 3) return EX_USAGE; + + int kq = kqueue(); + if (kq < 0) err(EX_OSERR, "kqueue"); + + int index; + for (index = 1; index < argc - 1; ++index) { + if (argv[index][0] == '-') { + index++; + break; + } + watch(kq, argv[index]); + } + + exec(&argv[index]); + + for (;;) { + struct kevent event; + int nevents = kevent(kq, NULL, 0, &event, 1, NULL); + if (nevents < 0) err(EX_IOERR, "kevent"); + + if (event.fflags & NOTE_DELETE) { + close(event.ident); + watch(kq, event.udata); + } + + exec(&argv[index]); + } +} diff --git a/bin/xx.c b/bin/xx.c new file mode 100644 index 00000000..e1e31e4a --- /dev/null +++ b/bin/xx.c @@ -0,0 +1,129 @@ +/* Hexdump. + * + * Copyright (c) 2017, June McEnroe + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero 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 Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see . + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +static bool allZero(const uint8_t *buf, size_t len) { + for (size_t i = 0; i < len; ++i) + if (buf[i]) return false; + return true; +} + +enum { + FLAG_ASCII = 1 << 0, + FLAG_OFFSET = 1 << 1, + FLAG_SKIP = 1 << 2, + FLAG_UNDUMP = 1 << 3, +}; + +static void dump(size_t cols, size_t group, uint8_t flags, FILE *file) { + uint8_t buf[cols]; + size_t offset = 0, len = 0; + for (;;) { + offset += len; + len = fread(buf, 1, sizeof(buf), file); + if (!len) break; + + if ((flags & FLAG_SKIP) && len == sizeof(buf)) { + static bool skip; + if (allZero(buf, len)) { + if (!skip) printf("*\n"); + skip = true; + continue; + } + skip = false; + } + + if (flags & FLAG_OFFSET) { + printf("%08zx: ", offset); + } + + for (size_t i = 0; i < len; ++i) { + if (group && i && !(i % group)) printf(" "); + printf("%02x ", buf[i]); + } + + if (flags & FLAG_ASCII) { + for (size_t i = len; i < cols; ++i) { + printf((group && !(i % group)) ? " " : " "); + } + printf(" "); + for (size_t i = 0; i < len; ++i) { + if (group && i && !(i % group)) printf(" "); + printf("%c", isprint(buf[i]) ? buf[i] : '.'); + } + } + + printf("\n"); + if (len < sizeof(buf)) break; + } +} + +static void undump(FILE *file) { + uint8_t byte; + int match; + while (1 == (match = fscanf(file, " %hhx", &byte))) { + printf("%c", byte); + } + if (match == 0) errx(EX_DATAERR, "invalid input"); +} + +int main(int argc, char *argv[]) { + size_t cols = 16; + size_t group = 8; + uint8_t flags = FLAG_ASCII | FLAG_OFFSET; + char *path = NULL; + + int opt; + while (0 < (opt = getopt(argc, argv, "ac:fg:hku"))) { + switch (opt) { + case 'a': flags ^= FLAG_ASCII; break; + case 'f': flags ^= FLAG_OFFSET; break; + case 'k': flags ^= FLAG_SKIP; break; + case 'u': flags ^= FLAG_UNDUMP; break; + case 'c': cols = strtoul(optarg, NULL, 10); break; + case 'g': group = strtoul(optarg, NULL, 10); break; + default: + fprintf(stderr, "usage: xx [-afku] [-c cols] [-g group] [file]\n"); + return (opt == 'h') ? EX_OK : EX_USAGE; + } + } + if (!cols) return EX_USAGE; + if (argc > optind) { + path = argv[optind]; + } + + FILE *file = path ? fopen(path, "r") : stdin; + if (!file) err(EX_NOINPUT, "%s", path); + + if (flags & FLAG_UNDUMP) { + undump(file); + } else { + dump(cols, group, flags, file); + } + + if (ferror(file)) err(EX_IOERR, "%s", path); + return EX_OK; +} diff --git a/home/.bin/bri.c b/home/.bin/bri.c deleted file mode 100755 index d085814b..00000000 --- a/home/.bin/bri.c +++ /dev/null @@ -1,77 +0,0 @@ -#if 0 -set -e -bin=$(dirname $0) -cc -Wall -Wextra -pedantic $@ -o $bin/bri $0 -sudo chown root:root $bin/bri -sudo chmod u+s $bin/bri -exit -#endif - -// Backlight brightness control. - -#include -#include -#include -#include -#include -#include -#include - -static const char *CLASS = "/sys/class/backlight"; - -int main(int argc, char *argv[]) { - int error; - - if (argc < 2) errx(EX_USAGE, "usage: bri N | +... | -..."); - - error = chdir(CLASS); - if (error) err(EX_IOERR, "%s", CLASS); - - DIR *dir = opendir("."); - if (!dir) err(EX_IOERR, "%s", CLASS); - - struct dirent *entry; - while (NULL != (errno = 0, entry = readdir(dir))) { - if (entry->d_name[0] == '.') continue; - - error = chdir(entry->d_name); - if (error) err(EX_IOERR, "%s", entry->d_name); - break; - } - if (!entry) { - if (errno) err(EX_IOERR, "%s", CLASS); - errx(EX_CONFIG, "empty %s", CLASS); - } - - char *value = argv[1]; - - if (value[0] == '+' || value[0] == '-') { - FILE *actual = fopen("actual_brightness", "r"); - if (!actual) err(EX_IOERR, "actual_brightness"); - - unsigned int brightness; - int match = fscanf(actual, "%u", &brightness); - if (match == EOF) err(EX_IOERR, "actual_brightness"); - if (match < 1) err(EX_DATAERR, "actual_brightness"); - - size_t count = strnlen(value, 15); - if (value[0] == '+') { - brightness += 16 * count; - } else { - brightness -= 16 * count; - } - - char buf[15]; - snprintf(buf, sizeof(buf), "%u", brightness); - - value = buf; - } - - FILE *brightness = fopen("brightness", "w"); - if (!brightness) err(EX_IOERR, "brightness"); - - int count = fprintf(brightness, "%s", value); - if (count < 0) err(EX_IOERR, "brightness"); - - return EX_OK; -} diff --git a/home/.bin/dtch.c b/home/.bin/dtch.c deleted file mode 100755 index a37eeeeb..00000000 --- a/home/.bin/dtch.c +++ /dev/null @@ -1,254 +0,0 @@ -#if 0 -set -e -bin=$(dirname $0) -cc -Wall -Wextra -pedantic $@ -lutil -o $bin/dtch $0 -ln -f $bin/dtch $bin/atch -exit -#endif - -// Session attach and detach. - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#if defined __FreeBSD__ -#include -#elif defined __linux__ -#include -#else -#include -#endif - -static struct passwd *getUser(void) { - uid_t uid = getuid(); - struct passwd *user = getpwuid(uid); - if (!user) err(EX_OSFILE, "/etc/passwd"); - return user; -} - -static struct sockaddr_un sockAddr(const char *home, const char *name) { - struct sockaddr_un addr = { .sun_family = AF_LOCAL }; - snprintf(addr.sun_path, sizeof(addr.sun_path), "%s/.dtch/%s", home, name); - return addr; -} - -static ssize_t writeAll(int fd, const char *buf, size_t len) { - ssize_t writeLen; - while (0 < (writeLen = write(fd, buf, len))) { - buf += writeLen; - len -= writeLen; - } - return writeLen; -} - -char z; -struct iovec iov = { .iov_base = &z, .iov_len = 1 }; - -static ssize_t sendFd(int sock, int fd) { - size_t len = CMSG_LEN(sizeof(int)); - char buf[len]; - struct msghdr msg = { - .msg_iov = &iov, - .msg_iovlen = 1, - .msg_control = buf, - .msg_controllen = len, - }; - - struct cmsghdr *cmsg = CMSG_FIRSTHDR(&msg); - cmsg->cmsg_len = len; - cmsg->cmsg_level = SOL_SOCKET; - cmsg->cmsg_type = SCM_RIGHTS; - *(int *)CMSG_DATA(cmsg) = fd; - - return sendmsg(sock, &msg, 0); -} - -static int recvFd(int sock) { - size_t len = CMSG_LEN(sizeof(int)); - char buf[len]; - struct msghdr msg = { - .msg_iov = &iov, - .msg_iovlen = 1, - .msg_control = buf, - .msg_controllen = len, - }; - - ssize_t n = recvmsg(sock, &msg, 0); - if (n < 0) return -1; - - struct cmsghdr *cmsg = CMSG_FIRSTHDR(&msg); - if (!cmsg) { errno = ENOMSG; return -1; } - if (cmsg->cmsg_type != SCM_RIGHTS) { errno = EBADMSG; return -1; } - - return *(int *)CMSG_DATA(cmsg); -} - -static struct sockaddr_un addr; - -static void unlinkAddr(void) { - unlink(addr.sun_path); -} - -static int dtch(int argc, char *argv[]) { - int error; - - struct passwd *user = getUser(); - - char *name = user->pw_name; - char *cmd = user->pw_shell; - if (argc > 2) { - name = argv[1]; - cmd = argv[2]; - argv += 2; - } else if (argc > 1) { - name = argv[1]; - argv++; - } - - int home = open(user->pw_dir, 0); - if (home < 0) err(EX_IOERR, "%s", user->pw_dir); - error = mkdirat(home, ".dtch", S_IRWXU); - if (error && errno != EEXIST) err(EX_IOERR, "%s/.dtch", user->pw_dir); - error = close(home); - if (error) err(EX_IOERR, "%s", user->pw_dir); - - int server = socket(PF_LOCAL, SOCK_STREAM, 0); - if (server < 0) err(EX_OSERR, "socket"); - - addr = sockAddr(user->pw_dir, name); - error = bind(server, (struct sockaddr *)&addr, sizeof(addr)); - if (error) err(EX_IOERR, "%s", addr.sun_path); - atexit(unlinkAddr); - - error = chmod(addr.sun_path, 0600); - if (error) err(EX_IOERR, "%s", addr.sun_path); - - int master; - pid_t pid = forkpty(&master, NULL, NULL, NULL); - if (pid < 0) err(EX_OSERR, "forkpty"); - - if (!pid) { - error = close(server); - if (error) warn("close(%d)", server); - execvp(cmd, argv); - err(EX_OSERR, "%s", cmd); - } - - error = listen(server, 0); - if (error) err(EX_OSERR, "listen"); - - for (;;) { - int client = accept(server, NULL, NULL); - if (client < 0) err(EX_IOERR, "accept(%d)", server); - - ssize_t len = sendFd(client, master); - if (len < 0) warn("sendmsg(%d)", client); - - len = recv(client, &z, sizeof(z), 0); - if (len < 0) warn("recv(%d)", client); - - error = close(client); - if (error) warn("close(%d)", client); - - pid_t dead = waitpid(pid, NULL, WNOHANG); - if (dead < 0) warn("waitpid(%d)", pid); - if (dead) exit(EX_OK); - } -} - -static struct termios saveTerm; - -static void restoreTerm(void) { - tcsetattr(STDERR_FILENO, TCSADRAIN, &saveTerm); - printf( - "\x1b[?1049l" // rmcup - "\x1b\x63\x1b[!p\x1b[?3;4l\x1b[4l\x1b>" // reset - ); -} - -static int atch(int argc, char *argv[]) { - int error; - - struct passwd *user = getUser(); - char *name = (argc > 1) ? argv[1] : user->pw_name; - - int client = socket(PF_LOCAL, SOCK_STREAM, 0); - if (client < 0) err(EX_OSERR, "socket"); - - struct sockaddr_un addr = sockAddr(user->pw_dir, name); - error = connect(client, (struct sockaddr *)&addr, sizeof(addr)); - if (error) err(EX_IOERR, "%s", addr.sun_path); - - int master = recvFd(client); - if (master < 0) err(EX_IOERR, "recvmsg(%d)", client); - - struct winsize window; - error = ioctl(STDERR_FILENO, TIOCGWINSZ, &window); - if (error) err(EX_IOERR, "ioctl(%d, TIOCGWINSZ)", STDERR_FILENO); - - error = ioctl(master, TIOCSWINSZ, &window); - if (error) err(EX_IOERR, "ioctl(%d, TIOCSWINSZ)", master); - - error = tcgetattr(STDERR_FILENO, &saveTerm); - if (error) err(EX_IOERR, "tcgetattr(%d)", STDERR_FILENO); - atexit(restoreTerm); - - struct termios raw; - cfmakeraw(&raw); - error = tcsetattr(STDERR_FILENO, TCSADRAIN, &raw); - if (error) err(EX_IOERR, "tcsetattr(%d)", STDERR_FILENO); - - char ctrlL = CTRL('L'); - ssize_t len = write(master, &ctrlL, 1); - if (len < 0) err(EX_IOERR, "write(%d)", master); - - struct pollfd fds[2] = { - { .fd = STDIN_FILENO, .events = POLLIN }, - { .fd = master, .events = POLLIN }, - }; - - while (0 < poll(fds, 2, -1)) { - char buf[4096]; - ssize_t len; - - if (fds[0].revents) { - len = read(STDIN_FILENO, buf, sizeof(buf)); - if (len < 0) err(EX_IOERR, "read(%d)", STDIN_FILENO); - - if (len && buf[0] == CTRL('Q')) exit(EX_OK); - - len = writeAll(master, buf, len); - if (len < 0) err(EX_IOERR, "write(%d)", master); - } - - if (fds[1].revents) { - len = read(master, buf, sizeof(buf)); - if (len < 0) err(EX_IOERR, "read(%d)", master); - len = writeAll(STDOUT_FILENO, buf, len); - if (len < 0) err(EX_IOERR, "write(%d)", STDOUT_FILENO); - } - } - err(EX_IOERR, "poll([%d,%d])", STDIN_FILENO, master); -} - -int main(int argc, char *argv[]) { - switch (argv[0][0]) { - case 'd': return dtch(argc, argv); - case 'a': return atch(argc, argv); - } - return EX_USAGE; -} diff --git a/home/.bin/hnel.c b/home/.bin/hnel.c deleted file mode 100755 index 3aec85b3..00000000 --- a/home/.bin/hnel.c +++ /dev/null @@ -1,115 +0,0 @@ -#if 0 -exec cc -Wall -Wextra -pedantic $@ -lutil -o $(dirname $0)/hnel $0 -#endif - -// PTY wrapper for preserving HJKL in Tarmak layouts. - -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#if defined __FreeBSD__ -#include -#elif defined __linux__ -#include -#else -#include -#endif - -static char table[256] = { - ['n'] = 'j', ['N'] = 'J', [CTRL('N')] = CTRL('J'), - ['e'] = 'k', ['E'] = 'K', [CTRL('E')] = CTRL('K'), - ['j'] = 'e', ['J'] = 'E', [CTRL('J')] = CTRL('E'), - ['k'] = 'n', ['K'] = 'N', [CTRL('K')] = CTRL('N'), -}; - -static ssize_t writeAll(int fd, const char *buf, size_t len) { - ssize_t writeLen; - while (0 < (writeLen = write(fd, buf, len))) { - buf += writeLen; - len -= writeLen; - } - return writeLen; -} - -static struct termios saveTerm; - -static void restoreTerm(void) { - tcsetattr(STDERR_FILENO, TCSADRAIN, &saveTerm); -} - -int main(int argc, char *argv[]) { - int error; - - if (argc < 2) return EX_USAGE; - - error = tcgetattr(STDERR_FILENO, &saveTerm); - if (error) err(EX_IOERR, "tcgetattr"); - atexit(restoreTerm); - - struct termios raw; - cfmakeraw(&raw); - error = tcsetattr(STDERR_FILENO, TCSADRAIN, &raw); - if (error) err(EX_IOERR, "tcsetattr"); - - struct winsize window; - error = ioctl(STDERR_FILENO, TIOCGWINSZ, &window); - if (error) err(EX_IOERR, "ioctl(%d, TIOCGWINSZ)", STDERR_FILENO); - - int master; - pid_t pid = forkpty(&master, NULL, NULL, &window); - if (pid < 0) err(EX_OSERR, "forkpty"); - - if (!pid) { - execvp(argv[1], argv + 1); - err(EX_OSERR, "%s", argv[1]); - } - - bool enable = true; - - struct pollfd fds[2] = { - { .fd = STDIN_FILENO, .events = POLLIN }, - { .fd = master, .events = POLLIN }, - }; - while (0 < poll(fds, 2, -1)) { - char buf[4096]; - ssize_t len; - - if (fds[0].revents) { - len = read(STDIN_FILENO, buf, sizeof(buf)); - if (len < 0) err(EX_IOERR, "read(%d)", STDIN_FILENO); - - if (len == 1) { - if (buf[0] == CTRL('S')) { - enable = !enable; - continue; - } - - unsigned char c = buf[0]; - if (enable && table[c]) buf[0] = table[c]; - } - - len = writeAll(master, buf, len); - if (len < 0) err(EX_IOERR, "write(%d)", master); - } - - if (fds[1].revents) { - len = read(master, buf, sizeof(buf)); - if (len < 0) err(EX_IOERR, "read(%d)", master); - len = writeAll(STDOUT_FILENO, buf, len); - if (len < 0) err(EX_IOERR, "write(%d)", STDOUT_FILENO); - } - - int status; - pid_t dead = waitpid(pid, &status, WNOHANG); - if (dead < 0) err(EX_OSERR, "waitpid(%d)", pid); - if (dead) return WIFEXITED(status) ? WEXITSTATUS(status) : EX_SOFTWARE; - } - err(EX_IOERR, "poll"); -} diff --git a/home/.bin/jrp.c b/home/.bin/jrp.c deleted file mode 100755 index 9317ac8e..00000000 --- a/home/.bin/jrp.c +++ /dev/null @@ -1,273 +0,0 @@ -#if 0 -exec cc -Wall -Wextra -pedantic $@ $0 -ledit -o $(dirname $0)/jrp -#endif - -// JIT RPN calculator. - -#include -#include -#include -#include -#include -#include -#include -#include - -typedef unsigned long qop; -typedef unsigned int dop; - -typedef long qvalue; -typedef int dvalue; -typedef unsigned long uvalue; - -typedef qvalue *(*jitFn)(qvalue *); -typedef void (*rtFn)(qvalue); - -static char *formatBin(qvalue val) { - static char buf[sizeof(qvalue) * 8 + 1]; - uvalue uval = val; - size_t i = sizeof(buf); - do { - buf[--i] = '0' + (uval & 1); - } while (uval >>= 1); - return &buf[i]; -} - -static void rtPrintAscii(qvalue val) { - printf("%c\n", (char)val); -} -static void rtPrintBin(qvalue val) { - printf("%s\n", formatBin(val)); -} -static void rtPrintOct(qvalue val) { - printf("%lo\n", val); -} -static void rtPrintDec(qvalue val) { - printf("%ld\n", val); -} -static void rtPrintHex(qvalue val) { - printf("%lx\n", val); -} - -static const dop DOP_NOP = 0x90666666; // nop -static const dop DOP_PUSH = 0xc7c74857; // push rdi; mov rdi, strict dword 0 -static const dop DOP_DROP = 0x9066665f; // pop rdi -static const dop DOP_DUP = 0x90666657; // push rdi -static const dop DOP_SWAP = 0x243c8748; // xchg rdi, [rsp] -static const dop DOP_NEG = 0x90dff748; // neg rdi -static const dop DOP_ADD = 0xc7014858; // pop rax; add rdi, rax -static const dop DOP_QUO = 0x90c78948; // mov rdi, rax -static const dop DOP_REM = 0x90d78948; // mov rdi, rdx -static const dop DOP_NOT = 0x90d7f748; // not rdi -static const dop DOP_AND = 0xc7214858; // pop rax; and rdi, rax -static const dop DOP_OR = 0xc7094858; // pop rax; or rdi, rax -static const dop DOP_XOR = 0xc7314858; // pop rax; xor rdi, rax - -static const qop QOP_PROL = 0x5ffc8948e5894855; // push rbp; mov rbp, rsp; mov rsp, rdi; pop rdi -static const qop QOP_EPIL = 0x5dec8948e0894857; // push rdi; mov rax, rsp; mov rsp, rbp; pop rbp -static const qop QOP_RET = 0x90666666906666c3; // ret -static const qop QOP_CRT = 0xb848906690e58748; // xchg rsp, rbp; mov rax, strict qword 0 -static const qop QOP_CALL = 0x90665fe58748d0ff; // call rax; xchg rsp, rbp; pop rdi -static const qop QOP_PUSH = 0xbf48906690666657; // push rdi; mov rdi, strict qword 0 -static const qop QOP_SUB = 0x9066665f243c2948; // sub [rsp], rdi; pop rdi -static const qop QOP_MUL = 0x906666f8af0f4858; // pop rax; imul rdi, rax -static const qop QOP_DIV = 0x9066fff748994858; // pop rax; cqo; idiv rdi -static const qop QOP_SHL = 0x5f2424d348f98948; // mov rcx, rdi; shl qword [rsp], cl; pop rdi -static const qop QOP_SHR = 0x5f242cd348f98948; // mov rcx, rdi; shr qword [rsp], cl; pop rdi - -static int radix = 10; - -static struct { - qop *base; - qop *ptr; - dop dop; -} code; - -static struct { - qvalue *base; - qvalue *limit; - qvalue *ptr; -} stack; - -static void jitDop(dop op) { - if (code.dop) { - *code.ptr++ = (qop)op << 32 | code.dop; - code.dop = 0; - } else { - code.dop = op; - } -} - -static void jitQop(qop op) { - if (code.dop) jitDop(DOP_NOP); - *code.ptr++ = op; -} - -static void jitPush(qvalue imm) { - if ((dvalue)imm == imm) { - jitQop(DOP_PUSH | (qop)imm << 32); - } else { - jitQop(QOP_PUSH); - jitQop((qop)imm); - } -} - -static void jitCall(rtFn fn) { - jitQop(QOP_CRT); - jitQop((qop)fn); - jitQop(QOP_CALL); -} - -static void jitBegin(void) { - code.ptr = code.base; - jitQop(QOP_PROL); -} - -static void jitEnd(void) { - jitQop(QOP_EPIL); - jitQop(QOP_RET); -} - -static void jitInit(void) { - code.base = mmap(0, getpagesize(), PROT_READ | PROT_WRITE, MAP_ANON | MAP_PRIVATE, -1, 0); - if (code.base == MAP_FAILED) err(EX_OSERR, "mmap"); -} - -static void stackInit(void) { - stack.base = mmap(0, 2 * getpagesize(), PROT_READ | PROT_WRITE, MAP_ANON | MAP_PRIVATE, -1, 0); - if (stack.base == MAP_FAILED) err(EX_OSERR, "mmap"); - stack.limit = stack.base + getpagesize() / sizeof(qvalue); - stack.ptr = stack.limit; -} - -static void jitExec(void) { - int error; - error = mprotect(code.base, getpagesize(), PROT_READ | PROT_EXEC); - if (error) err(EX_OSERR, "mprotect"); - stack.ptr = ((jitFn)code.base)(stack.ptr); - if (stack.ptr > stack.limit) stack.ptr = stack.limit; - error = mprotect(code.base, getpagesize(), PROT_READ | PROT_WRITE); - if (error) err(EX_OSERR, "mprotect"); -} - -static void jitSrc(const char *src) { - bool quote = false; - while (*src) { - if (quote) { - jitPush(*src++); - quote = false; - continue; - } - - switch (*src) { - case ' ': break; - case 39: quote = true; break; - case 'B': radix = 2; break; - case 'O': radix = 8; break; - case 'D': radix = 10; break; - case 'X': radix = 16; break; - case ';': jitDop(DOP_DROP); break; - case ':': jitDop(DOP_DUP); break; - case 92: jitDop(DOP_SWAP); break; - case '_': jitDop(DOP_NEG); break; - case '+': jitDop(DOP_ADD); break; - case '-': jitQop(QOP_SUB); break; - case '*': jitQop(QOP_MUL); break; - case '/': jitQop(QOP_DIV); jitDop(DOP_QUO); break; - case '%': jitQop(QOP_DIV); jitDop(DOP_REM); break; - case '~': jitDop(DOP_NOT); break; - case '&': jitDop(DOP_AND); break; - case '|': jitDop(DOP_OR); break; - case '^': jitDop(DOP_XOR); break; - case '<': jitQop(QOP_SHL); break; - case '>': jitQop(QOP_SHR); break; - case ',': jitCall(rtPrintAscii); break; - case '.': switch (radix) { - case 2: jitCall(rtPrintBin); break; - case 8: jitCall(rtPrintOct); break; - case 10: jitCall(rtPrintDec); break; - case 16: jitCall(rtPrintHex); break; - } break; - - default: { - char *rest; - qvalue val = strtol(src, &rest, radix); - if (rest != src) { - src = rest; - jitPush(val); - continue; - } - } - } - - src++; - } -} - -static void jitDump(const char *path, FILE *file) { - size_t nitems = code.ptr - code.base; - size_t written = fwrite(code.base, sizeof(qop), nitems, file); - if (written < nitems) err(EX_IOERR, "%s", path); -} - -static char *prompt(EditLine *el __attribute((unused))) { - static char buf[4096]; - char *bufPtr = buf; - for (qvalue *stackPtr = stack.limit - 1; stackPtr >= stack.ptr; --stackPtr) { - size_t bufLen = sizeof(buf) - (bufPtr - buf) - 2; - switch (radix) { - case 2: bufPtr += snprintf(bufPtr, bufLen, " %s", formatBin(*stackPtr)); break; - case 8: bufPtr += snprintf(bufPtr, bufLen, " %lo", *stackPtr); break; - case 10: bufPtr += snprintf(bufPtr, bufLen, " %ld", *stackPtr); break; - case 16: bufPtr += snprintf(bufPtr, bufLen, " %lx", *stackPtr); break; - } - } - buf[0] = '['; - if (bufPtr == buf) bufPtr++; - *bufPtr++ = ']'; - *bufPtr++ = ' '; - *bufPtr = 0; - return buf; -} - -int main(int argc, char *argv[]) { - FILE *file = NULL; - char *path = getenv("JRP_DUMP"); - if (path) { - file = fopen(path, "w"); - if (!file) err(EX_CANTCREAT, "%s", path); - } - - jitInit(); - stackInit(); - - if (argc > 1) { - jitBegin(); - for (int i = 1; i < argc; ++i) - jitSrc(argv[i]); - jitEnd(); - if (file) jitDump(path, file); - jitExec(); - return EX_OK; - } - - EditLine *el = el_init(argv[0], stdin, stdout, stderr); - el_set(el, EL_PROMPT, prompt); - el_set(el, EL_SIGNAL, true); - - for (;;) { - int count; - const char *line = el_gets(el, &count); - if (count < 0) err(EX_IOERR, "el_gets"); - if (!line) break; - - jitBegin(); - jitSrc(line); - jitEnd(); - if (file) jitDump(path, file); - jitExec(); - } - - el_end(el); - return EX_OK; -} diff --git a/home/.bin/pbd.c b/home/.bin/pbd.c deleted file mode 100755 index 01e5c07d..00000000 --- a/home/.bin/pbd.c +++ /dev/null @@ -1,136 +0,0 @@ -#if 0 -set -e -bin=$(dirname $0) -cc -Wall -Wextra -pedantic $@ -o $bin/pbd $0 -ln -f $bin/pbd $bin/pbcopy -ln -f $bin/pbd $bin/pbpaste -exit -#endif - -// TCP server which pipes between macOS pbcopy and pbpaste, and pbcopy and -// pbpaste implementations which connect to it. - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -static void spawn(const char *cmd, int childFd, int parentFd) { - pid_t pid = fork(); - if (pid < 0) err(EX_OSERR, "fork"); - - if (pid) { - int status; - pid_t wait = waitpid(pid, &status, 0); - if (wait < 0) err(EX_OSERR, "waitpid"); - - if (status) { - warnx("child %s status %d", cmd, status); - } - } else { - int fd = dup2(parentFd, childFd); - if (fd < 0) err(EX_OSERR, "dup2"); - - int error = execlp(cmd, cmd, NULL); - if (error) err(EX_OSERR, "execlp"); - } -} - -static int pbd(void) { - int error; - - int server = socket(PF_INET, SOCK_STREAM, 0); - if (server < 0) err(EX_OSERR, "socket"); - - struct sockaddr_in addr = { - .sin_family = AF_INET, - .sin_port = htons(7062), - .sin_addr = { .s_addr = htonl(0x7f000001) }, - }; - - error = bind(server, (struct sockaddr *)&addr, sizeof(addr)); - if (error) err(EX_OSERR, "bind"); - - error = listen(server, 1); - if (error) err(EX_OSERR, "listen"); - - for (;;) { - int client = accept(server, NULL, NULL); - if (client < 0) err(EX_OSERR, "accept"); - - spawn("pbpaste", STDOUT_FILENO, client); - - uint8_t p; - ssize_t peek = recv(client, &p, 1, MSG_PEEK); - if (peek < 0) err(EX_IOERR, "recv"); - - if (peek) { - spawn("pbcopy", STDIN_FILENO, client); - } - - error = close(client); - if (error) err(EX_IOERR, "close"); - } -} - -static int pbdClient(void) { - int client = socket(PF_INET, SOCK_STREAM, 0); - if (client < 0) err(EX_OSERR, "socket"); - - struct sockaddr_in addr = { - .sin_family = AF_INET, - .sin_port = htons(7062), - .sin_addr = { .s_addr = htonl(0x7f000001) }, - }; - - int error = connect(client, (struct sockaddr *)&addr, sizeof(addr)); - if (error) err(EX_OSERR, "connect"); - - return client; -} - -static void copy(int fdIn, int fdOut) { - char readBuf[4096]; - ssize_t readLen; - while (0 < (readLen = read(fdIn, readBuf, sizeof(readBuf)))) { - char *writeBuf = readBuf; - ssize_t writeLen; - while (0 < (writeLen = write(fdOut, writeBuf, readLen))) { - writeBuf += writeLen; - readLen -= writeLen; - } - if (writeLen < 0) err(EX_IOERR, "write"); - } - if (readLen < 0) err(EX_IOERR, "read"); -} - -static int pbcopy(void) { - int client = pbdClient(); - copy(STDIN_FILENO, client); - return EX_OK; -} - -static int pbpaste(void) { - int client = pbdClient(); - int error = shutdown(client, SHUT_WR); - if (error) err(EX_OSERR, "shutdown"); - copy(client, STDOUT_FILENO); - return EX_OK; -} - -int main(int argc __attribute((unused)), char *argv[]) { - if (!argv[0][0] || !argv[0][1]) return EX_USAGE; - switch (argv[0][2]) { - case 'd': return pbd(); - case 'c': return pbcopy(); - case 'p': return pbpaste(); - } - return EX_USAGE; -} diff --git a/home/.bin/wake.c b/home/.bin/wake.c deleted file mode 100755 index 2f314975..00000000 --- a/home/.bin/wake.c +++ /dev/null @@ -1,41 +0,0 @@ -#if 0 -exec cc -Wall -Wextra -Wpedantic $@ -o $(dirname $0)/wake $0 -#endif - -#include -#include -#include -#include -#include -#include - -#define MAC 0x04, 0x7D, 0x7B, 0xD5, 0x6A, 0x53 - -const uint8_t payload[] = { - 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, - MAC, MAC, MAC, MAC, MAC, MAC, MAC, MAC, - MAC, MAC, MAC, MAC, MAC, MAC, MAC, MAC, -}; - -int main() { - int sock = socket(PF_INET, SOCK_DGRAM, 0); - if (sock < 0) err(EX_OSERR, "socket"); - - int on = 1; - int error = setsockopt(sock, SOL_SOCKET, SO_BROADCAST, &on, sizeof(on)); - if (error) err(EX_OSERR, "setsockopt"); - - struct sockaddr_in addr = { - .sin_family = AF_INET, - .sin_port = 9, - .sin_addr.s_addr = INADDR_BROADCAST, - }; - - ssize_t len = sendto( - sock, payload, sizeof(payload), 0, - (struct sockaddr *)&addr, sizeof(addr) - ); - if (len < 0) err(EX_IOERR, "sendto"); - - return EX_OK; -} diff --git a/home/.bin/watch.c b/home/.bin/watch.c deleted file mode 100755 index 7720315b..00000000 --- a/home/.bin/watch.c +++ /dev/null @@ -1,100 +0,0 @@ -#if 0 -exec cc -Wall -Wextra -Wpedantic -o $(dirname $0)/watch $0 -#endif - -/* - * Execute a command each time files change. - * - * Copyright (c) 2017, June McEnroe - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU Affero 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 Affero General Public License for more details. - * - * You should have received a copy of the GNU Affero General Public License - * along with this program. If not, see . - */ - -#include - -#include -#include -#include -#include -#include -#include -#include - -static void watch(int kq, char *path) { - int fd = open(path, O_RDONLY); - if (fd < 0) err(EX_IOERR, "%s", path); - - struct kevent event = { - .ident = fd, - .filter = EVFILT_VNODE, - .flags = EV_ADD | EV_CLEAR, - .fflags = NOTE_WRITE | NOTE_DELETE, - .udata = path, - }; - int nevents = kevent(kq, &event, 1, NULL, 0, NULL); - if (nevents < 0) err(EX_IOERR, "kevent"); -} - -static void exec(char *const argv[]) { - pid_t pid = fork(); - if (pid < 0) err(EX_OSERR, "fork"); - - if (!pid) { - execvp(argv[0], argv); - err(EX_OSERR, "%s", argv[0]); - } - - int status; - pid = wait(&status); - if (pid < 0) err(EX_OSERR, "wait"); - - if (WIFEXITED(status)) { - warnx("exit %d", WEXITSTATUS(status)); - } else if (WIFSIGNALED(status)) { - warnx("signal %d", WTERMSIG(status)); - } else { - warnx("status %d", status); - } -} - -int main(int argc, char *argv[]) { - if (argc < 3) return EX_USAGE; - - int kq = kqueue(); - if (kq < 0) err(EX_OSERR, "kqueue"); - - int index; - for (index = 1; index < argc - 1; ++index) { - if (argv[index][0] == '-') { - index++; - break; - } - watch(kq, argv[index]); - } - - exec(&argv[index]); - - for (;;) { - struct kevent event; - int nevents = kevent(kq, NULL, 0, &event, 1, NULL); - if (nevents < 0) err(EX_IOERR, "kevent"); - - if (event.fflags & NOTE_DELETE) { - close(event.ident); - watch(kq, event.udata); - } - - exec(&argv[index]); - } -} diff --git a/home/.bin/xx.c b/home/.bin/xx.c deleted file mode 100755 index 78d8db4c..00000000 --- a/home/.bin/xx.c +++ /dev/null @@ -1,117 +0,0 @@ -#if 0 -exec cc -Wall -Wextra -pedantic $@ -o $(dirname $0)/xx $0 -#endif - -// Hexdump. - -#include -#include -#include -#include -#include -#include -#include -#include - -static bool allZero(const uint8_t *buf, size_t len) { - for (size_t i = 0; i < len; ++i) - if (buf[i]) return false; - return true; -} - -enum { - FLAG_ASCII = 1 << 0, - FLAG_OFFSET = 1 << 1, - FLAG_SKIP = 1 << 2, - FLAG_UNDUMP = 1 << 3, -}; - -static void dump(size_t cols, size_t group, uint8_t flags, FILE *file) { - uint8_t buf[cols]; - size_t offset = 0, len = 0; - for (;;) { - offset += len; - len = fread(buf, 1, sizeof(buf), file); - if (!len) break; - - if ((flags & FLAG_SKIP) && len == sizeof(buf)) { - static bool skip; - if (allZero(buf, len)) { - if (!skip) printf("*\n"); - skip = true; - continue; - } - skip = false; - } - - if (flags & FLAG_OFFSET) { - printf("%08zx: ", offset); - } - - for (size_t i = 0; i < len; ++i) { - if (group && i && !(i % group)) printf(" "); - printf("%02x ", buf[i]); - } - - if (flags & FLAG_ASCII) { - for (size_t i = len; i < cols; ++i) { - printf((group && !(i % group)) ? " " : " "); - } - printf(" "); - for (size_t i = 0; i < len; ++i) { - if (group && i && !(i % group)) printf(" "); - printf("%c", isprint(buf[i]) ? buf[i] : '.'); - } - } - - printf("\n"); - if (len < sizeof(buf)) break; - } -} - -static void undump(FILE *file) { - uint8_t byte; - int match; - while (1 == (match = fscanf(file, " %hhx", &byte))) { - printf("%c", byte); - } - if (match == 0) errx(EX_DATAERR, "invalid input"); -} - -int main(int argc, char *argv[]) { - size_t cols = 16; - size_t group = 8; - uint8_t flags = FLAG_ASCII | FLAG_OFFSET; - char *path = NULL; - - int opt; - while (0 < (opt = getopt(argc, argv, "ac:fg:hku"))) { - switch (opt) { - case 'a': flags ^= FLAG_ASCII; break; - case 'f': flags ^= FLAG_OFFSET; break; - case 'k': flags ^= FLAG_SKIP; break; - case 'u': flags ^= FLAG_UNDUMP; break; - case 'c': cols = strtoul(optarg, NULL, 10); break; - case 'g': group = strtoul(optarg, NULL, 10); break; - default: - fprintf(stderr, "usage: xx [-afku] [-c cols] [-g group] [file]\n"); - return (opt == 'h') ? EX_OK : EX_USAGE; - } - } - if (!cols) return EX_USAGE; - if (argc > optind) { - path = argv[optind]; - } - - FILE *file = path ? fopen(path, "r") : stdin; - if (!file) err(EX_NOINPUT, "%s", path); - - if (flags & FLAG_UNDUMP) { - undump(file); - } else { - dump(cols, group, flags, file); - } - - if (ferror(file)) err(EX_IOERR, "%s", path); - return EX_OK; -} -- cgit 1.4.1