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Glibc and System Calls Documentation Release 1.0
Glibc and System Calls Documentation Release 1.0 Rishi Agrawal <[email protected]> Dec 28, 2017 Contents 1 Introduction 1 1.1 Acknowledgements...........................................1 2 Basics of a Linux System 3 2.1 Introduction...............................................3 2.2 Programs and Compilation........................................3 2.3 Libraries.................................................7 2.4 System Calls...............................................7 2.5 Kernel.................................................. 10 2.6 Conclusion................................................ 10 2.7 References................................................ 11 3 Working with glibc 13 3.1 Introduction............................................... 13 3.2 Why this chapter............................................. 13 3.3 What is glibc .............................................. 13 3.4 Download and extract glibc ...................................... 14 3.5 Walkthrough glibc ........................................... 14 3.6 Reading some functions of glibc ................................... 17 3.7 Compiling and installing glibc .................................... 18 3.8 Using new glibc ............................................ 21 3.9 Conclusion................................................ 23 4 System Calls On x86_64 from User Space 25 4.1 Setting Up Arguements......................................... 25 4.2 Calling the System Call......................................... 27 4.3 Retrieving the Return Value...................................... -
Studying the Real World Today's Topics
Studying the real world Today's topics Free and open source software (FOSS) What is it, who uses it, history Making the most of other people's software Learning from, using, and contributing Learning about your own system Using tools to understand software without source Free and open source software Access to source code Free = freedom to use, modify, copy Some potential benefits Can build for different platforms and needs Development driven by community Different perspectives and ideas More people looking at the code for bugs/security issues Structure Volunteers, sponsored by companies Generally anyone can propose ideas and submit code Different structures in charge of what features/code gets in Free and open source software Tons of FOSS out there Nearly everything on myth Desktop applications (Firefox, Chromium, LibreOffice) Programming tools (compilers, libraries, IDEs) Servers (Apache web server, MySQL) Many companies contribute to FOSS Android core Apple Darwin Microsoft .NET A brief history of FOSS 1960s: Software distributed with hardware Source included, users could fix bugs 1970s: Start of software licensing 1974: Software is copyrightable 1975: First license for UNIX sold 1980s: Popularity of closed-source software Software valued independent of hardware Richard Stallman Started the free software movement (1983) The GNU project GNU = GNU's Not Unix An operating system with unix-like interface GNU General Public License Free software: users have access to source, can modify and redistribute Must share modifications under same -
Version 7.8-Systemd
Linux From Scratch Version 7.8-systemd Created by Gerard Beekmans Edited by Douglas R. Reno Linux From Scratch: Version 7.8-systemd by Created by Gerard Beekmans and Edited by Douglas R. Reno Copyright © 1999-2015 Gerard Beekmans Copyright © 1999-2015, Gerard Beekmans All rights reserved. This book is licensed under a Creative Commons License. Computer instructions may be extracted from the book under the MIT License. Linux® is a registered trademark of Linus Torvalds. Linux From Scratch - Version 7.8-systemd Table of Contents Preface .......................................................................................................................................................................... vii i. Foreword ............................................................................................................................................................. vii ii. Audience ............................................................................................................................................................ vii iii. LFS Target Architectures ................................................................................................................................ viii iv. LFS and Standards ............................................................................................................................................ ix v. Rationale for Packages in the Book .................................................................................................................... x vi. Prerequisites -
GNU Astronomy Utilities
GNU Astronomy Utilities Astronomical data manipulation and analysis programs and libraries for version 0.15.58-2b10e, 23 September 2021 Mohammad Akhlaghi Gnuastro (source code, book and web page) authors (sorted by number of commits): Mohammad Akhlaghi ([email protected], 1812) Pedram Ashofteh Ardakani ([email protected], 54) Raul Infante-Sainz ([email protected], 34) Mos`eGiordano ([email protected], 29) Vladimir Markelov ([email protected], 18) Sachin Kumar Singh ([email protected], 13) Zahra Sharbaf ([email protected], 12) Nat´aliD. Anzanello ([email protected], 8) Boud Roukema ([email protected], 7) Carlos Morales-Socorro ([email protected], 3) Th´er`eseGodefroy ([email protected], 3) Joseph Putko ([email protected], 2) Samane Raji ([email protected], 2) Alexey Dokuchaev ([email protected], 1) Andreas Stieger ([email protected], 1) Fran¸coisOchsenbein ([email protected], 1) Kartik Ohri ([email protected], 1) Leindert Boogaard ([email protected], 1) Lucas MacQuarrie ([email protected], 1) Madhav Bansal ([email protected], 1) Miguel de Val-Borro ([email protected], 1) Sepideh Eskandarlou ([email protected], 1) This book documents version 0.15.58-2b10e of the GNU Astronomy Utilities (Gnuastro). Gnuastro provides various programs and libraries for astronomical data manipulation and analysis. Copyright c 2015-2021, Free Software Foundation, Inc. Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. -
Linux from Scratch 版本 R11.0-36-中⽂翻译版 发布于 2021 年 9 ⽉ 21 ⽇
Linux From Scratch 版本 r11.0-36-中⽂翻译版 发布于 2021 年 9 ⽉ 21 ⽇ 由 Gerard Beekmans 原著 总编辑:Bruce Dubbs Linux From Scratch: 版本 r11.0-36-中⽂翻译版 : 发布于 2021 年 9 ⽉ 21 ⽇ 由 由 Gerard Beekmans 原著和总编辑:Bruce Dubbs 版权所有 © 1999-2021 Gerard Beekmans 版权所有 © 1999-2021, Gerard Beekmans 保留所有权利。 本书依照 Creative Commons License 许可证发布。 从本书中提取的计算机命令依照 MIT License 许可证发布。 Linux® 是Linus Torvalds 的注册商标。 Linux From Scratch - 版本 r11.0-36-中⽂翻译版 ⽬录 序⾔ .................................................................................................................................... viii i. 前⾔ ............................................................................................................................ viii ii. 本书⾯向的读者 ............................................................................................................ viii iii. LFS 的⽬标架构 ............................................................................................................ ix iv. 阅读本书需要的背景知识 ................................................................................................. ix v. LFS 和标准 ..................................................................................................................... x vi. 本书选择软件包的逻辑 .................................................................................................... xi vii. 排版约定 .................................................................................................................... xvi viii. 本书结构 ................................................................................................................. -
The GNU C Programming Tutorial
Edition 4.1 The GNU C Programming Tutorial Mark Burgess Faculty of Engineering, Oslo College Ron Hale-Evans Copyright c 2002 Free Software Foundation, Inc. Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.1 or any later version published by the Free Software Foundation; there being no Invariant Section, with the Front-Cover Texts being \A GNU Manual", and with the Back-Cover Texts as in (a) below. A copy of the license is included in the section entitled \GNU Free Documentation License". (a) The FSF's Back-Cover Text is: \You have freedom to copy and modify this GNU Manual, like GNU software. Copies published by the Free Software Foundation raise funds for GNU development." Function pointers i Table of Contents Preface ...................................... xi 1 Introduction............................... 1 1.1 The advantages of C..................................... 1 1.2 Questions for Chapter 1 ................................. 2 2 Using a compiler........................... 3 2.1 Basic ideas about C ..................................... 3 2.2 The compiler ........................................... 4 2.3 File names .............................................. 4 2.4 Errors .................................................. 5 2.4.1 Typographical errors ............................ 6 2.4.2 Type errors .................................... 6 2.5 Questions for Chapter 2 ................................. 6 3 The form of a C program................... 9 -
Freebsd File Formats Manual Libarchive-Formats (5)
libarchive-formats (5) FreeBSD File Formats Manual libarchive-formats (5) NAME libarchive-formats —archive formats supported by the libarchive library DESCRIPTION The libarchive(3) library reads and writes a variety of streaming archive formats. Generally speaking, all of these archive formats consist of a series of “entries”. Each entry stores a single file system object, such as a file, directory,orsymbolic link. The following provides a brief description of each format supported by libarchive,with some information about recognized extensions or limitations of the current library support. Note that just because a format is supported by libarchive does not imply that a program that uses libarchive will support that format. Applica- tions that use libarchive specify which formats theywish to support, though manyprograms do use libarchive convenience functions to enable all supported formats. TarFormats The libarchive(3) library can read most tar archives. However, itonly writes POSIX-standard “ustar” and “pax interchange” formats. All tar formats store each entry in one or more 512-byte records. The first record is used for file metadata, including filename, timestamp, and mode information, and the file data is stored in subsequent records. Later variants have extended this by either appropriating undefined areas of the header record, extending the header to multiple records, or by storing special entries that modify the interpretation of subsequent entries. gnutar The libarchive(3) library can read GNU-format tar archives. It currently supports the most popular GNU extensions, including modern long filename and linkname support, as well as atime and ctime data. The libarchive library does not support multi-volume archives, nor the old GNU long filename format. -
The GNU C Library: System & Network Applications
The GNU C Library: System & Network Applications For GNU C Libraries version 2.3.x by Sandra Loosemore with Richard M. Stallman, Roland McGrath, Andrew Oram, and Ulrich Drepper This manual documents the GNU C Libraries version 2.3.x. ISBN 1-882114-24-8, First Printing, March 2004. Published by: GNU Press Website: www.gnupress.org a division of the General: [email protected] Free Software Foundation Orders: [email protected] 51 Franklin St, Fifth Floor Tel: 617-542-5942 Boston, MA 02110-1301 USA Fax: 617-542-2652 Copyright © 1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2, or any later version published by the Free Software Foundation; with the Invariant Sections being “Free Software and Free Manuals”, the “GNU Free Documentation License”," and the “GNU Lesser General Public License”, with the Front Cover Texts being “A GNU Manual”, and with the Back Cover Texts as in (a) below. A copy of the license is included in the section entitled “GNU Free Documentation License”. (a) The Back Cover Text is: You are free to copy and modify this GNU Manual. Buying copies from GNU Press supports the FSF in developing GNU and promoting software freedom. Cover art by Etienne Suvasa. Cover design by Jonathan Richard. Printed in USA. i Short Contents 1 Introduction ............................................ 1 2 Low-Level Input/Output .................................. 17 3 File-System Interface .................................... 71 4 Pipes and FIFOs ...................................... 119 5 Sockets .............................................. 125 6 Low-Level Terminal Interface ........................... -
CDE: Run Any Linux Application On-Demand Without Installation
CDE: Run Any Linux Application On-Demand Without Installation Philip J. Guo Stanford University [email protected] Abstract with compiling, installing, and configuring software and their myriad of dependencies. For example, the official There is a huge ecosystem of free software for Linux, but Google Chrome help forum for “install/uninstall issues” since each Linux distribution (distro) contains a differ- has over 5800 threads. ent set of pre-installed shared libraries, filesystem layout In addition, a study of US labor statistics predicts that conventions, and other environmental state, it is difficult by 2012, 13 million American workers will do program- to create and distribute software that works without has- ming in their jobs, but amongst those, only 3 million will sle across all distros. Online forums and mailing lists be professional software developers [24]. Thus, there are are filled with discussions of users’ troubles with com- potentially millions of people who still need to get their piling, installing, and configuring Linux software and software to run on other machines but who are unlikely their myriad of dependencies. To address this ubiqui- to invest the effort to create one-click installers or wres- tous problem, we have created an open-source tool called tle with package managers, since their primary job is not CDE that automatically packages up the Code, Data, and to release production-quality software. For example: Environment required to run a set of x86-Linux pro- grams on other x86-Linux machines. Creating a CDE • System administrators often hack together ad- package is as simple as running the target application un- hoc utilities comprised of shell scripts and custom- der CDE’s monitoring, and executing a CDE package re- compiled versions of open-source software, in or- quires no installation, configuration, or root permissions. -
IDOL Keyview PDF Export SDK 12.6 C Programming Guide
KeyView Software Version 12.6 PDF Export SDK C Programming Guide Document Release Date: June 2020 Software Release Date: June 2020 PDF Export SDK C Programming Guide Legal notices Copyright notice © Copyright 1997-2020 Micro Focus or one of its affiliates. The only warranties for products and services of Micro Focus and its affiliates and licensors (“Micro Focus”) are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. Micro Focus shall not be liable for technical or editorial errors or omissions contained herein. The information contained herein is subject to change without notice. Documentation updates The title page of this document contains the following identifying information: l Software Version number, which indicates the software version. l Document Release Date, which changes each time the document is updated. l Software Release Date, which indicates the release date of this version of the software. To check for updated documentation, visit https://www.microfocus.com/support-and-services/documentation/. Support Visit the MySupport portal to access contact information and details about the products, services, and support that Micro Focus offers. This portal also provides customer self-solve capabilities. It gives you a fast and efficient way to access interactive technical support tools needed to manage your business. As a valued support customer, you can benefit by using the MySupport portal to: l Search for knowledge documents of interest l Access product documentation l View software vulnerability alerts l Enter into discussions with other software customers l Download software patches l Manage software licenses, downloads, and support contracts l Submit and track service requests l Contact customer support l View information about all services that Support offers Many areas of the portal require you to sign in. -
Forcepoint DLP Supported File Formats and Size Limits
Forcepoint DLP Supported File Formats and Size Limits Supported File Formats and Size Limits | Forcepoint DLP | v8.8.1 This article provides a list of the file formats that can be analyzed by Forcepoint DLP, file formats from which content and meta data can be extracted, and the file size limits for network, endpoint, and discovery functions. See: ● Supported File Formats ● File Size Limits © 2021 Forcepoint LLC Supported File Formats Supported File Formats and Size Limits | Forcepoint DLP | v8.8.1 The following tables lists the file formats supported by Forcepoint DLP. File formats are in alphabetical order by format group. ● Archive For mats, page 3 ● Backup Formats, page 7 ● Business Intelligence (BI) and Analysis Formats, page 8 ● Computer-Aided Design Formats, page 9 ● Cryptography Formats, page 12 ● Database Formats, page 14 ● Desktop publishing formats, page 16 ● eBook/Audio book formats, page 17 ● Executable formats, page 18 ● Font formats, page 20 ● Graphics formats - general, page 21 ● Graphics formats - vector graphics, page 26 ● Library formats, page 29 ● Log formats, page 30 ● Mail formats, page 31 ● Multimedia formats, page 32 ● Object formats, page 37 ● Presentation formats, page 38 ● Project management formats, page 40 ● Spreadsheet formats, page 41 ● Text and markup formats, page 43 ● Word processing formats, page 45 ● Miscellaneous formats, page 53 Supported file formats are added and updated frequently. Key to support tables Symbol Description Y The format is supported N The format is not supported P Partial metadata -
Pulse Connect Secure 8.2R5 Attributions
Pulse Connect Secure 8.2R5 Attributions Revision Date 08/18/16 © 2016 by Pulse Secure, LLC. All rights reserved 1 Pulse Connect Secure 8.2R3 Attributions Pulse Secure, LLC 2700 Zanker Road, Suite 200 San Jose, CA 95134 http://www.pulsesecure.net © 2016 by Pulse Secure, LLC. All rights reserved Pulse Secure and the Pulse Secure logo are trademarks of Pulse Secure, LLC in the United States. All other trademarks, service marks, registered trademarks, or registered service marks are the property of their respective owners. Pulse Secure, LLC assumes no responsibility for any inaccuracies in this document. Pulse Secure, LLC reserves the right to change, modify, transfer, or otherwise revise this publication without notice. Pulse Policy Secure Enterprise Guest Access Solution Configuration Guide The information in this document is current as of the date on the title page. END USER LICENSE AGREEMENT The Pulse Secure product that is the subject of this technical documentation consists of (or is intended for use with) Pulse Secure software. Use of such software is subject to the terms and conditions of the End User License Agreement (“EULA”) posted at http://www.pulsesecure.net/support/eula. By downloading, installing or using such software, you agree to the terms and conditions of that EULA. © 2016 by Pulse Secure, LLC. All rights reserved 2 Pulse Connect Secure 8.2R5 Attributions Table of Contents This document contains information on the following products or licenses: Table of Contents .....................................................................................................................................