Unix Network Programming, Volume 1: The Sockets Networking API

1138 Pages·2003·16.42 MB·English

by  W. Richard Stevens

[ Team LiB ]

• Table of Contents
UNIX® Network Programming Volume 1, Third Edition: The Sockets Networking
API
By W. Richard Stevens, Bill Fenner, Andrew M. Rudoff

Publisher: Addison Wesley
Pub Date: November 21, 2003
ISBN: 0-13-141155-1
Pages: 1024
"Everyone will want this book because it provides a great mix of practical experience, historical
perspective, and a depth of understanding that only comes from being intimately involved in
the field. I've already enjoyed and learned from reading this book, and surely you will too."
-Sam Leffler
The classic guide to UNIX networking APIs... now completely updated!
To build today's highly distributed, networked applications and services, you need deep
mastery of sockets and other key networking APIs. One book delivers comprehensive, start-to-
finish guidance for building robust, high-performance networked systems in any environment:
UNIX Network Programming, Volume 1, Third Edition.
Building on the legendary work of W. Richard Stevens, this edition has been fully updated by
two leading network programming experts to address today's most crucial standards,
implementations, and techniques. New topics include:
POSIX Single UNIX Specification Version 3
IPv6 APIs (including updated guidance on IPv6/IPv4 interoperability)
The new SCTP transport protocol
IPsec-based Key Management Sockets
FreeBSD 4.8/5.1, Red Hat Linux 9.x, Solaris 9, AIX 5.x, HP-UX, and Mac OS X
implementations
New network program debugging techniques
Source Specific Multicast API, the key enabler for widespread IP multicast deployment
The authors also update and extend Stevens' definitive coverage of these crucial UNIX
[ Team LiB ]
networking standards and techniques:
TCP and UDP transport
Sockets: elementary, advanced, routed, and raw
I/O: multiplexing, advanced functions, nonblocking, and signal-driven
Daemons and inetd
UNIX domain protocols
ioctl operations
Broadca sting and multicasting
• Table of Contents
Threads
UNIX® Network Programming Volume 1, Third Edition: The Sockets Networking
API
Streams
By W. Richard Stevens, Bill Fenner, Andrew M. Rudoff
Design: TCP iterative, concurrent, preforked, and prethreaded servers
SincPeub 1lis9h9er0:, Andeditswono rWke spleryogrammers have turned to one source for the insights and techniques
theyP unbe Deadte:: WNo.v eRmicbhear r2d1, S20te03vens' UNIX Network Programming. Now, there's an edition
specificIaSBllNy: d0e-1s3ig-1n4e1d15 f5o-r1 today's challenges-and tomorrow's.
Pages: 1024
[ Team LiB ]
"Everyone will want this book because it provides a great mix of practical experience, historical
perspective, and a depth of understanding that only comes from being intimately involved in
the field. I've already enjoyed and learned from reading this book, and surely you will too."
-Sam Leffler
The classic guide to UNIX networking APIs... now completely updated!
To build today's highly distributed, networked applications and services, you need deep
mastery of sockets and other key networking APIs. One book delivers comprehensive, start-to-
finish guidance for building robust, high-performance networked systems in any environment:
UNIX Network Programming, Volume 1, Third Edition.
Building on the legendary work of W. Richard Stevens, this edition has been fully updated by
two leading network programming experts to address today's most crucial standards,
implementations, and techniques. New topics include:
POSIX Single UNIX Specification Version 3
IPv6 APIs (including updated guidance on IPv6/IPv4 interoperability)
The new SCTP transport protocol
IPsec-based Key Management Sockets
FreeBSD 4.8/5.1, Red Hat Linux 9.x, Solaris 9, AIX 5.x, HP-UX, and Mac OS X
implementations
New network program debugging techniques
Source Specific Multicast API, the key enabler for widespread IP multicast deployment
[[ TTeeaamm LLiiBB ]]

•• TTaabbllee ooff CCoonntteennttss
UUNNIIXX®® NNeettwwoorrkk PPrrooggrraammmmiinngg VVoolluummee 11,, TThhiirrdd EEddiittiioonn:: TThhee SSoocckkeettss NNeettwwoorrkkiinngg
AAPPII
BByy WW.. RRiicchhaarrdd SStteevveennss,, BBiillll FFeennnneerr,, AAnnddrreeww MM.. RRuuddooffff

PPuubblliisshheerr:: AAddddiissoonn WWeesslleeyy
PPuubb DDaattee:: NNoovveemmbbeerr 2211,, 22000033
IISSBBNN:: 00--1133--114411115555--11
PPaaggeess:: 11002244
Copyright
"Everyone will want this book because it provides a great mix of practical experience, historical
Addison-Wesley Professional Computing Series
perspective, and a depth of understanding that only comes from being intimately involved in
Foreword
the field. I've already enjoyed and learned from reading this book, and surely you will too."
Preface
-Sam Leffler
Introduction
T he clasCshiacn ggeusi dfreo mto th Ue NSeIcXo nnde Etdwitoiornking APIs... now completely updated!
Using This Book
T o b uildS otourdcae yC'osd eh iagnhd lyEr rdaitsat Arivbauilatbeidlit,y networked applications and services, you need deep
mastery of sockets and other key networking APIs. One book delivers comprehensive, start-to-
Acknowledgments
finish guidance for building robust, high-performance networked systems in any environment:
Part 1: Introduction and TCP/IP
UNIX Network Programming, Volume 1, Third Edition.
Chapter 1. Introduction
B uil ding oSne ctthioen l1e.g1.e nIndtarordyu cwtioonrk of W. Richard Stevens, this edition has been fully updated by
t w o leadinSge cntieontw 1o.2r. k A p Sriomgprlea mDamytiimneg Celixepnterts to address today's most crucial standards,
i m p lemenStaecttiioonn s1,. 3a. n Pdr otteoccohl nIniqdeupeesn.d eNnecew topics include:
Section 1.4. Error Handling: Wrapper Functions
POSISXec Stioinn g1l.e5 . U AN SIiXm pSlep eDcayiftiicmaet iSoenrv Verersion 3
Section 1.6. Roadmap to Client/Server Examples in the Text
IPv6S AecPtIiosn (1i.n7c. l uOdSiIn Mgo duepldated guidance on IPv6/IPv4 interoperability)
Section 1.8. BSD Networking History
The new SCTP transport protocol
Section 1.9. Test Networks and Hosts
IPsecS-ebctaiosne 1d.1 K0.e yU nMixa Sntaangdeamrdsent Sockets
Section 1.11. 64-Bit Architectures
FreeSBeSctDio n4 1.8.1/25. . 1S,u mRmedar yHat Linux 9.x, Solaris 9, AIX 5.x, HP-UX, and Mac OS X
impleExmerecnisetastions
Chapter 2. The Transport Layer: TCP, UDP, and SCTP
New network program debugging techniques
Section 2.1. Introduction
SourSceec tSiopn e2c.2if.i c T hMeu Blitgic Paicsttu rAePI, the key enabler for widespread IP multicast deployment
Section 2.3. User Datagram Protocol (UDP)
[ Te am LiBSe ]ction 2.4. Transmission Control Protocol (TCP)
Section 2.5. Stream Control Transmission Protocol (SCTP)
Section 2.6. TCP Connection Establishment and Termination
Section 2.7. TIME_WAIT State
Section 2.8. SCTP Association Establishment and Termination
Section 2.9. Port Numbers
Section 2.10. TCP Port Numbers and Concurrent Servers
Section 2.11. Buffer Sizes and Limitations
Section 2.12. Standard Internet Services
Section 2.13. Protocol Usage by Common Internet Applications
Section 2.14. Summary
Exercises
Part 2: Elementary Sockets
Chapter 3. Sockets Introduction

Section 3.1. Introduction
• Table of Contents
Section 3.2. Socket Address Structures
UNIX® Network Programming Volume 1, Third Edition: The Sockets Networking
A PI Section 3.3. Value-Result Arguments
B y W . RicharSde cSttioenv e3n.4s., B Bilyl tFee Onnrdeerr,i Angn dFruenwct Mion. sRudoff
Section 3.5. Byte Manipulation Functions

Section 3.6. inet_aton, inet_addr, and inet_ntoa Functions
PublisheSr:e cAtdiodnis 3o.n7 .W eisnleeyt_pton and inet_ntop Functions
Pub DateS:e cNtoiovne m3.b8e. r s21o,c 2k0_0n3top and Related Functions
ISBNS:e c0t-io1n3 -31.491. 1 r55e-a1dn, writen, and readline Functions
PageSs:e c1t0io2n4 3.10. Summary
Exercises
Chapter 4. Elementary TCP Sockets
Section 4.1. Introduction
"Everyone will want this book because it provides a great mix of practical experience, historical
Section 4.2. socket Function
perspective, and a depth of understanding that only comes from being intimately involved in
t h e field. IS'evceti oanl r4e.3a.d cy oennnjeocyte dF uannctdio nlearned from reading this book, and surely you will too."
- S a m LeffSleerction 4.4. bind Function
Section 4.5. listen Function
T he classicSe gctuioind e4 .6to. aUcNcIeXp nte Ftuwncotriokning APIs... now completely updated!
Section 4.7. fork and exec Functions
To build today's highly distributed, networked applications and services, you need deep
Section 4.8. Concurrent Servers
mastery of sockets and other key networking APIs. One book delivers comprehensive, start-to-
f i nis h guidSaenctcioen f4o.r9 . b culildoisneg F ruoncbtuiosnt, high-performance networked systems in any environment:
U NI X NetwSeocrtkio nP r4o.1g0r. a gmemtsinogc,k Vnaolmuem aend 1 g, eTthpierde rEndaitmieo nFu.nctions
Section 4.11. Summary
B uil ding oEnx etrhceis elsegendary work of W. Richard Stevens, this edition has been fully updated by
two leading network programming experts to address today's most crucial standards,
Chapter 5. TCP Client/Server Example
implementations, and techniques. New topics include:
Section 5.1. Introduction
Section 5.2. TCP Echo Server: main Function
POSISXec Stioinn g5l.e3 . U TNCIPX E cShpo eSceirfviecra:t siotnr _Veecrshioo nF u3nction
Section 5.4. TCP Echo Client: main Function
IPv6S AecPtiIosn (5i.n5c. l uTCdPin Egc huo pCdliaentte:d s gtru_idcalnic eFu oncnt ioInPv6/IPv4 interoperability)
Section 5.6. Normal Startup
The new SCTP transport protocol
Section 5.7. Normal Termination
IPsecS-ebctaiosne 5d.8 K. e PyO SMIXa nSiaggnaelm Haenndtli nSgockets
Section 5.9. Handling SIGCHLD Signals
FreeSBeScDtio n4 5.8.1/05. . 1w,a Rite da nHd awta Liitnpuixd 9 F.uxn,c tSioonlsaris 9, AIX 5.x, HP-UX, and Mac OS X
implementations
Section 5.11. Connection Abort before accept Returns
New Snecettiowno 5r.k1 2p. r Toegrmrainmat idone bofu Sgegrivnegr Ptreoccehsnsiques
Section 5.13. SIGPIPE Signal
SourSceec tSiopn e5c.1if4i.c CMrauslhtiicnag sotf SAePrvIe, rt Hhoes tkey enabler for widespread IP multicast deployment
Section 5.15. Crashing and Rebooting of Server Host
[ Te am LiBSe ]ction 5.16. Shutdown of Server Host
Section 5.17. Summary of TCP Example
Section 5.18. Data Format
Section 5.19. Summary
Exercises
Chapter 6. I/O Multiplexing: The select and poll Functions
Section 6.1. Introduction
Section 6.2. I/O Models
Section 6.3. select Function
Section 6.4. str_cli Function (Revisited)
Section 6.5. Batch Input and Buffering
Section 6.6. shutdown Function
Section 6.7. str_cli Function (Revisited Again)
Section 6.8. TCP Echo Server (Revisited)

Section 6.9. pselect Function
• Table of Contents
Section 6.10. poll Function
UNIX® Network Programming Volume 1, Third Edition: The Sockets Networking
A PI Section 6.11. TCP Echo Server (Revisited Again)
B y W . RicharSde cSttioenv e6n.1s2, B. i lSl uFmenmnaerry, Andrew M. Rudoff
Exercises

Chapter 7. Socket Options
PublisheSr:e cAtdiodnis 7o.n1 W. eInslteroyduction
Pub DateS:e cNtoiovne m7.b2e. r g21e,t 2s0o0c3kopt and setsockopt Functions
ISBNS:e c0t-io1n3 -71.431. 1 C55h-e1cking if an Option Is Supported and Obtaining the Default
PageSs:e c1t0io2n4 7.4. Socket States
Section 7.5. Generic Socket Options
Section 7.6. IPv4 Socket Options
Section 7.7. ICMPv6 Socket Option
"Everyone will want this book because it provides a great mix of practical experience, historical
Section 7.8. IPv6 Socket Options
perspective, and a depth of understanding that only comes from being intimately involved in
t h e field. IS'evceti oanl r7e.9a.d TyC ePn Sjoocykeetd O aptniodn slearned from reading this book, and surely you will too."
- S a m LeffSleerction 7.10. SCTP Socket Options
Section 7.11. fcntl Function
T he classicSe gctuioind e7 .1to2. U SNumIXm nareytworking APIs... now completely updated!
Exercises
To build today's highly distributed, networked applications and services, you need deep
Chapter 8. Elementary UDP Sockets
mastery of sockets and other key networking APIs. One book delivers comprehensive, start-to-
f i nis h guidSaenctcioen f8o.r1 .b Iunitlrdoidnugc trioonbust, high-performance networked systems in any environment:
U NI X NetwSeocrtkio nP r8o.2g. r ramecmvfinrgo,m V aonldu smeen d1t, oT hFuirndct iEondsition.
Section 8.3. UDP Echo Server: main Function
B uil ding oSne ctthioen l8e.g4.e nUdDaPr Eyc hwo oSrekrv oerf: Wdg. _Reicchhaor Fdu nScttieovnens, this edition has been fully updated by
t w o leadinSge cntieontw 8o.5r. k U pDrPo Egcrhaom Clmienint:g m eaxipne Frutnsc ttioon address today's most crucial standards,
implementations, and techniques. New topics include:
Section 8.6. UDP Echo Client: dg_cli Function
Section 8.7. Lost Datagrams
POSISXec Stioinn g8l.e8 . U VNerIiXfy iSngp eReccifeiicvaedti oRens pVoenrsseion 3
Section 8.9. Server Not Running
IPv6 APIs (including updated guidance on IPv6/IPv4 interoperability)
Section 8.10. Summary of UDP Example
Section 8.11. connect Function with UDP
The new SCTP transport protocol
Section 8.12. dg_cli Function (Revisited)
IPsecS-ebctaiosne 8d.1 K3.e yL aMcka onf aFgloewm Ceonnttr oSl woicthk eUtDsP
Section 8.14. Determining Outgoing Interface with UDP
FreeSBeSctDio n4 8.8.1/55. . 1T,C PR aendd HUDaPt ELcihnou Sxe r9v.exr, U Ssiongla sriesl 9e,c tAIX 5.x, HP-UX, and Mac OS X
implementations
Section 8.16. Summary
New Enxeertcwiseosrk program debugging techniques
Chapter 9. Elementary SCTP Sockets
SourSceec tSiopn e9c.1if.i c I nMtruodltuicctaiosnt API, the key enabler for widespread IP multicast deployment
Section 9.2. Interface Models
[ Te am LiBSe ]ction 9.3. sctp_bindx Function
Section 9.4. sctp_connectx Function
Section 9.5. sctp_getpaddrs Function
Section 9.6. sctp_freepaddrs Function
Section 9.7. sctp_getladdrs Function
Section 9.8. sctp_freeladdrs Function
Section 9.9. sctp_sendmsg Function
Section 9.10. sctp_recvmsg Function
Section 9.11. sctp_opt_info Function
Section 9.12. sctp_peeloff Function
Section 9.13. shutdown Function
Section 9.14. Notifications
Section 9.15. Summary
Exercises

Chapter 10. SCTP Client/Server Example
• Table of Contents
Section 10.1. Introduction
UNIX® Network Programming Volume 1, Third Edition: The Sockets Networking
A PI Section 10.2. SCTP One-to-Many-Style Streaming Echo Server: main Function
B y W . RicharSde cSttioenv e1n0s.3, B. i lSl CFTePn nOenre,- Atno-dMreawny M-S.t yRlue dSotrfefaming Echo Client: main Function
Section 10.4. SCTP Streaming Echo Client: str_cli Function

Section 10.5. Exploring Head-of-Line Blocking
PublisheSr:e cAtdiodnis 1o0n. 6W. e sCloenytrolling the Number of Streams
Pub DateS:e cNtoiovne m10b.e7r. 2 C1o, n2t0r0ol3ling Termination
ISBNS:e c0t-io1n3 -1104.181. 5 S5-u1mmary
PageEs:x e1r0c2is4es
Chapter 11. Name and Address Conversions
Section 11.1. Introduction
Section 11.2. Domain Name System (DNS)
"Everyone will want this book because it provides a great mix of practical experience, historical
Section 11.3. gethostbyname Function
perspective, and a depth of understanding that only comes from being intimately involved in
t h e field. IS'evceti oanl r1e1a.4d. y g eentjhooysetdb aynadd dlera Frunnectdio nfrom reading this book, and surely you will too."
- S a m LeffSleerction 11.5. getservbyname and getservbyport Functions
Section 11.6. getaddrinfo Function
T he classicSe gctuioidn e1 1t.o7. U gNaIiX_ nstertweorrrkoirn gF uAncPtIiosn... now completely updated!
Section 11.8. freeaddrinfo Function
To build today's highly distributed, networked applications and services, you need deep
Section 11.9. getaddrinfo Function: IPv6
mastery of sockets and other key networking APIs. One book delivers comprehensive, start-to-
f i nis h guidSaenctcioen f1o1r. 1b0u. i lgdeintga drdorbiunsft,o h Fiugnhct-ipone:r fEoxrammpalensce networked systems in any environment:
U NI X NetwSeocrtkio nP r1o1.g1r1a. m hmosint_gs, eVrovlu Fmunec t1io,n Third Edition.
Section 11.12. tcp_connect Function
B uil ding oSne ctthioen l1e1g.1e3n. d tacryp _wloirskt oefn WFu.n cRtiiocnhard Stevens, this edition has been fully updated by
t w o leadinSge cntieontw 1o1.r1k4 .p ruodgpr_acmlimeinntg Feuxnpcteiornts to address today's most crucial standards,
implementations, and techniques. New topics include:
Section 11.15. udp_connect Function
Section 11.16. udp_server Function
POSISXe cStioinn g1l1e. 1U7.N IgXe tSnpaemceifiicnaftoio Fnu nVcetiorsnion 3
Section 11.18. Re-entrant Functions
IPv6S AecPtIiosn (1i1n.c1l9u. d ginegt huopsdtabtyedna gmuei_dra nacned goent IhPovs6t/bIPyva4dd irn_terr oFupnecrtaiobnsility)
Section 11.20. Obsolete IPv6 Address Lookup Functions
The new SCTP transport protocol
Section 11.21. Other Networking Information
IPsecS-ebctaiosne 1d1 .K22e.y SMumanmaagryement Sockets
Exercises
FreeBSD 4.8/5.1, Red Hat Linux 9.x, Solaris 9, AIX 5.x, HP-UX, and Mac OS X
Part 3: Advanced Sockets
implementations
Chapter 12. IPv4 and IPv6 Interoperability
New Snecettiowno 1r2k. 1p. r Iongtrroadmuc tidoenbugging techniques
Section 12.2. IPv4 Client, IPv6 Server
SourSceec tSiopn e1c2i.f3i.c IMPvu6l tCicliaenstt, IAPPv4I, S tehrvee rkey enabler for widespread IP multicast deployment
Section 12.4. IPv6 Address-Testing Macros
[ Te am LiBSe ]ction 12.5. Source Code Portability
Section 12.6. Summary
Exercises
Chapter 13. Daemon Processes and the inetd Superserver
Section 13.1. Introduction
Section 13.2. syslogd Daemon
Section 13.3. syslog Function
Section 13.4. daemon_init Function
Section 13.5. inetd Daemon
Section 13.6. daemon_inetd Function
Section 13.7. Summary
Exercises
Chapter 14. Advanced I/O Functions
Section 14.1. Introduction

Section 14.2. Socket Timeouts
• Table of Contents
Section 14.3. recv and send Functions
UNIX® Network Programming Volume 1, Third Edition: The Sockets Networking
A PI Section 14.4. readv and writev Functions
B y W . RicharSde cSttioenv e1n4s.5, B. i lrl Feecnvnmesr,g A nanddre swe Mn.d mRsudgo Fffunctions
Section 14.6. Ancillary Data

Section 14.7. How Much Data Is Queued?
PublisheSr:e cAtdiodnis 1o4n. 8W. e sSloecykets and Standard I/O
Pub DateS:e cNtoiovne m14b.e9r. 2 A1d, v2a0n0c3ed Polling
ISBNS:e c0t-io1n3 -1144.11105. 5 S-1ummary
PageEs:x e1r0c2is4es
Chapter 15. Unix Domain Protocols
Section 15.1. Introduction
Section 15.2. Unix Domain Socket Address Structure
"Everyone will want this book because it provides a great mix of practical experience, historical
Section 15.3. socketpair Function
perspective, and a depth of understanding that only comes from being intimately involved in
t h e field. IS'evceti oanl r1e5a.4d. y S eonckjeoty Feudnc taionnds learned from reading this book, and surely you will too."
- S a m LeffSleerction 15.5. Unix Domain Stream Client/Server
Section 15.6. Unix Domain Datagram Client/Server
T he classicSe gctuioind e1 5t.o7. U PNasIsXin ng eDtewscorirpktoinrsg APIs... now completely updated!
Section 15.8. Receiving Sender Credentials
To build today's highly distributed, networked applications and services, you need deep
Section 15.9. Summary
mastery of sockets and other key networking APIs. One book delivers comprehensive, start-to-
f i nis h guidEaxnercceis efsor building robust, high-performance networked systems in any environment:
U NI X Ne Ctwhaoprtekr P16r.o gNroanmblomckiinngg ,I /VOolume 1, Third Edition.
Section 16.1. Introduction
B uil ding oSne ctthioen l1e6g.2e.n dNoanrbyl owckoinrgk Roefa dWs .a nRdi cWhraitreds: Sstterv_ecnlsi, Ftuhnisct ieond i(tRioenvi shitaeds) been fully updated by
t w o leadinSge cntieontw 1o6.r3k. pNroongblroackminmg cinogn neexcpterts to address today's most crucial standards,
implementations, and techniques. New topics include:
Section 16.4. Nonblocking connect: Daytime Client
Section 16.5. Nonblocking connect: Web Client
POSISXec Stioinn g1l6e. 6U. NNIoXnb Slopckeincgif iaccactieopnt Version 3
Section 16.7. Summary
IPv6 APIs (including updated guidance on IPv6/IPv4 interoperability)
Exercises
Chapter 17. ioctl Operations
The new SCTP transport protocol
Section 17.1. Introduction
IPsecS-ebctaiosne 1d7 .K2.e yi oMcatnla Fguenmctieonnt Sockets
Section 17.3. Socket Operations
FreeBSD 4.8/5.1, Red Hat Linux 9.x, Solaris 9, AIX 5.x, HP-UX, and Mac OS X
Section 17.4. File Operations
implementations
Section 17.5. Interface Configuration
New Snecettiowno 1r7k. 6p. r goegtra_mif di_ebiunfgog iFnugn ctteiocnhniques
Section 17.7. Interface Operations
SourSceec tSiopn e1c7i.f8i.c AMRuPl tCiaccahset OApPerIa,t itohnes key enabler for widespread IP multicast deployment
Section 17.9. Routing Table Operations
[ Te am LiBSe ]ction 17.10. Summary
Exercises
Chapter 18. Routing Sockets
Section 18.1. Introduction
Section 18.2. Datalink Socket Address Structure
Section 18.3. Reading and Writing
Section 18.4. sysctl Operations
Section 18.5. get_ifi_info Function (Revisited)
Section 18.6. Interface Name and Index Functions
Section 18.7. Summary
Exercises
Chapter 19. Key Management Sockets
Section 19.1. Introduction
Section 19.2. Reading and Writing

Section 19.3. Dumping the Security Association Database (SADB)
• Table of Contents
Section 19.4. Creating a Static Security Association (SA)
UNIX® Network Programming Volume 1, Third Edition: The Sockets Networking
A PI Section 19.5. Dynamically Maintaining SAs
B y W . RicharSde cSttioenv e1n9s.6, B. i lSl uFmenmnaerry, Andrew M. Rudoff
Exercises

Chapter 20. Broadcasting
PublisheSr:e cAtdiodnis 2o0n. 1W. e sInletyroduction
Pub DateS:e cNtoiovne m20b.e2r. 2 B1r,o 2a0d0c3ast Addresses
ISBNS:e c0t-io1n3 -2104.131. 5 U5-n1icast versus Broadcast
PageSs:e c1t0io2n4 20.4. dg_cli Function Using Broadcasting
Section 20.5. Race Conditions
Section 20.6. Summary
Exercises
"Everyone will want this book because it provides a great mix of practical experience, historical
Chapter 21. Multicasting
perspective, and a depth of understanding that only comes from being intimately involved in
t h e field. IS'evceti oanl r2e1a.1d. y I netnrojdouycetidon and learned from reading this book, and surely you will too."
- S a m LeffSleerction 21.2. Multicast Addresses
Section 21.3. Multicasting versus Broadcasting on a LAN
T he classicSe gctuioind e2 1t.o4. U MNuIltXic ansetitnwg oonrk ai nWgA NAPIs... now completely updated!
Section 21.5. Source-Specific Multicast
To build today's highly distributed, networked applications and services, you need deep
Section 21.6. Multicast Socket Options
mastery of sockets and other key networking APIs. One book delivers comprehensive, start-to-
f i nis h guidSaenctcioen f2o1r. 7b. u milcdainsgt _rojbouisnt a, nhdi gRhel-apteedr Ffounrcmtioannsce networked systems in any environment:
U NI X NetwSeocrtkio nP r2o1.g8r. a dmgm_cinlgi, FVunocltuiomn eU s1in,g T Mhuilrtdic aEstdinitgion.
Section 21.9. Receiving IP Multicast Infrastructure Session Announcements
B uil ding oSne ctthioen l2e1g.1e0n. d Saernyd iwngo arknd o Rfe Wcei.v iRngichard Stevens, this edition has been fully updated by
two leading network programming experts to address today's most crucial standards,
Section 21.11. Simple Network Time Protocol (SNTP)
implementations, and techniques. New topics include:
Section 21.12. Summary
Exercises
PO SChIaXp tSeri n2g2l.e A UdvNaInXce Sd pUeDcP ifSioccakteitosn Version 3
Section 22.1. Introduction
IPv6 APIs (including updated guidance on IPv6/IPv4 interoperability)
Section 22.2. Receiving Flags, Destination IP Address, and Interface Index
Section 22.3. Datagram Truncation
The new SCTP transport protocol
Section 22.4. When to Use UDP Instead of TCP
IPsecS-ebctaiosne 2d2 .K5.e yA dMdiangn aRgeleiambileitny tt oS ao cUkDeP tAspplication
Section 22.6. Binding Interface Addresses
FreeBSD 4.8/5.1, Red Hat Linux 9.x, Solaris 9, AIX 5.x, HP-UX, and Mac OS X
Section 22.7. Concurrent UDP Servers
implementations
Section 22.8. IPv6 Packet Information
New Snecettiowno 2r2k. 9p. r IoPgv6r aPmath d MeTbUu Cgognitnrogl techniques
Section 22.10. Summary
SourEcxee rScipseescific Multicast API, the key enabler for widespread IP multicast deployment
Chapter 23. Advanced SCTP Sockets
[ Te am LiBSe ]ction 23.1. Introduction
Section 23.2. An Autoclosing One-to-Many-Style Server
Section 23.3. Partial Delivery
Section 23.4. Notifications
Section 23.5. Unordered Data
Section 23.6. Binding a Subset of Addresses
Section 23.7. Determining Peer and Local Address Information
Section 23.8. Finding an Association ID Given an IP Address
Section 23.9. Heartbeating and Address Failure
Section 23.10. Peeling Off an Association
Section 23.11. Controlling Timing
Section 23.12. When to Use SCTP Instead of TCP
Section 23.13. Summary
Exercises

Chapter 24. Out-of-Band Data
• Table of Contents
Section 24.1. Introduction
UNIX® Network Programming Volume 1, Third Edition: The Sockets Networking
A PI Section 24.2. TCP Out-of-Band Data
B y W . RicharSde cSttioenv e2n4s.3, B. i lsl Foecnknaetr,m Aanrdkre Fwu nMc.t ioRnudoff
Section 24.4. TCP Out-of-Band Data Recap

Section 24.5. Summary
PublisheEr:x eArdcdisiesosn Wesley
Pub D aCthea:p Nteorv 2em5.b eSri g2n1a,l -2D0r0iv3en I/O
ISBNS:e c0t-io1n3 -2154.111. 5 I5n-t1roduction
PageSs:e c1t0io2n4 25.2. Signal-Driven I/O for Sockets
Section 25.3. UDP Echo Server Using SIGIO
Section 25.4. Summary
Exercises
"Everyone will want this book because it provides a great mix of practical experience, historical
Chapter 26. Threads
perspective, and a depth of understanding that only comes from being intimately involved in
t h e field. IS'evceti oanl r2e6a.1d. y I netnrojdouycetidon and learned from reading this book, and surely you will too."
- S a m LeffSleerction 26.2. Basic Thread Functions: Creation and Termination
Section 26.3. str_cli Function Using Threads
T he classicSe gctuioind e2 6t.o4. U TNCPIX E cnheo tSwerovrekr iUnsgin Ag PThIsre..a.d snow completely updated!
Section 26.5. Thread-Specific Data
To build today's highly distributed, networked applications and services, you need deep
Section 26.6. Web Client and Simultaneous Connections (Continued)
mastery of sockets and other key networking APIs. One book delivers comprehensive, start-to-
f i nis h guidSaenctcioen f2o6r. 7b. u Miludtienxge sr:o Mbuutusatl, Ehxicgluhs-iopnerformance networked systems in any environment:
U NI X NetwSeocrtkio nP r2o6.g8r. a Cmonmdiitniogn, VVaorialubmlese 1, Third Edition.
Section 26.9. Web Client and Simultaneous Connections (Continued)
B uil ding oSne ctthioen l2e6g.1e0n. d Saurmy mwaoryrk of W. Richard Stevens, this edition has been fully updated by
two leading network programming experts to address today's most crucial standards,
Exercises
implementations, and techniques. New topics include:
Chapter 27. IP Options
Section 27.1. Introduction
POSISXec Stioinn g2l7e. 2U. NIPIvX4 SOppteiocnisfication Version 3
Section 27.3. IPv4 Source Route Options
IPv6 APIs (including updated guidance on IPv6/IPv4 interoperability)
Section 27.4. IPv6 Extension Headers
Section 27.5. IPv6 Hop-by-Hop Options and Destination Options
The new SCTP transport protocol
Section 27.6. IPv6 Routing Header
IPsecS-ebctaiosne 2d7 .K7.e yIP Mv6a Sntaicgkye mOpetinont sSockets
Section 27.8. Historical IPv6 Advanced API
FreeBSD 4.8/5.1, Red Hat Linux 9.x, Solaris 9, AIX 5.x, HP-UX, and Mac OS X
Section 27.9. Summary
implementations
Exercises
Ne w Ch anpetetwr 2o8r.k Rparwo Sgorcakmets debugging techniques
Section 28.1. Introduction
SourSceec tSiopn e2c8i.f2i.c RMauwl tSicoacksett CArPeIa,t iothne key enabler for widespread IP multicast deployment
Section 28.3. Raw Socket Output
[ Te am LiBSe ]ction 28.4. Raw Socket Input
Section 28.5. ping Program
Section 28.6. traceroute Program
Section 28.7. An ICMP Message Daemon
Section 28.8. Summary
Exercises
Chapter 29. Datalink Access
Section 29.1. Introduction
Section 29.2. BSD Packet Filter (BPF)
Section 29.3. Datalink Provider Interface (DLPI)
Section 29.4. Linux: SOCK_PACKET and PF_PACKET
Section 29.5. libpcap: Packet Capture Library
Section 29.6. libnet: Packet Creation and Injection Library
Section 29.7. Examining the UDP Checksum Field

Section 29.8. Summary
• Table of Contents
Exercises
UNIX® Network Programming Volume 1, Third Edition: The Sockets Networking
A PI Chapter 30. Client/Server Design Alternatives
B y W . RicharSde cSttioenv e3n0s.1, B. i lIln Ftreondnuecrt,io Anndrew M. Rudoff
Section 30.2. TCP Client Alternatives

Section 30.3. TCP Test Client
PublisheSr:e cAtdiodnis 3o0n. 4W. e sTlCePy Iterative Server
Pub DateS:e cNtoiovne m30b.e5r. 2 T1C, P2 0C0o3ncurrent Server, One Child per Client
ISBNS:e c0t-io1n3 -3104.161. 5 T5C-1P Preforked Server, No Locking Around accept
PageSs:e c1t0io2n4 30.7. TCP Preforked Server, File Locking Around accept
Section 30.8. TCP Preforked Server, Thread Locking Around accept
Section 30.9. TCP Preforked Server, Descriptor Passing
Section 30.10. TCP Concurrent Server, One Thread per Client
"Everyone will want this book because it provides a great mix of practical experience, historical
Section 30.11. TCP Prethreaded Server, per-Thread accept
perspective, and a depth of understanding that only comes from being intimately involved in
t h e field. IS'evceti oanl r3e0a.1d2y. eTCnPj oPyreetdhr eaandded l eSaerrvneer,d M farion mTh rreeaad daicncge tphtis book, and surely you will too."
- S a m LeffSleerction 30.13. Summary
Exercises
T he clas sCihca pgtueri d3e1 . t oS tUreNamIXs networking APIs... now completely updated!
Section 31.1. Introduction
To build today's highly distributed, networked applications and services, you need deep
Section 31.2. Overview
mastery of sockets and other key networking APIs. One book delivers comprehensive, start-to-
f i nis h guidSaenctcioen f3o1r. 3b. u giledtinmgs gro abnud sptu, thmigshg- Fpuenrcftoiornms ance networked systems in any environment:
U NI X NetwSeocrtkio nP r3o1.g4r. a gmemtpinmgs,g V aonldu pmuet p1m, sTgh Firudn cEtiodnitsion.
Section 31.5. ioctl Function
B uil ding oSne ctthioen l3e1g.6e.n dTraarnysp worot rPkro ovifd eWr I.n Rteircfahcaer (dT PSI)tevens, this edition has been fully updated by
two leading network programming experts to address today's most crucial standards,
Section 31.7. Summary
implementations, and techniques. New topics include:
Exercises
Appendix A. IPv4, IPv6, ICMPv4, and ICMPv6
POSSecIXtio nS iAn.1g.l e I nUtrNodIuXc tSiopnecification Version 3
Section A.2. IPv4 Header
IPv6 APIs (including updated guidance on IPv6/IPv4 interoperability)
Section A.3. IPv6 Header
Section A.4. IPv4 Addresses
The new SCTP transport protocol
Section A.5. IPv6 Addresses
IPsSeecct-iobna As.e6d. IKneteyr nMeta Cnoantgreolm Meesnsta gSeo Pcrkoetotcsols (ICMPv4 and ICMPv6)
Appendix B. Virtual Networks
FreeBSD 4.8/5.1, Red Hat Linux 9.x, Solaris 9, AIX 5.x, HP-UX, and Mac OS X
Section B.1. Introduction
implementations
Section B.2. The MBone
NeSwec tnioent wB.o3.r k T hper o6bgornaem debugging techniques
Section B.4. IPv6 Transition: 6to4
S Aopuperncdeix S Cp. e Dceifbiuc gMginuglt Ticeachsnt iqAuPeIs, the key enabler for widespread IP multicast deployment
Section C.1. System Call Tracing