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DHCP£¨Dynamic Host Configure Protocol,¶¯Ì¬Ö÷»úÅäÖÃÎļþ£©£¬ÊÇÒ»¸ö¼ò»¯ÊÖ¶¯·ÖÅä¼°¹ÜÀíIPµØÖ·µÄ·³ÄÕ¡£DHCPÊÇ»ùÓÚC/SģʽµÄ¡£
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[root@localhost ~]# rpm -qa | grep dhcp
dhcpv6_client-0.10-8                                        //¿Í»§¶Ë×é¼þ
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[root@localhost cdrom]# rpm -ivh RedHat/RPMS/dhcp-3.0.1-12_EL.i386.rpm                                        //·þÎñÆ÷×é¼þ
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[root@localhost root]# vi  /etc/services
bootps                    67/tcp                              # BOOTP server
bootps                    67/udp
bootpc                    68/tcp                              # BOOTP client
bootpc                    68/udp
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HCIÌṩһÌ×ͳһµÄ·½·¨À´·ÃÎÊBluetoothµ×²ã¡£ÈçͼËùʾ£º
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Logical Link Control and Adaptation Protocol(L2CAP)
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ʵսLinux Bluetooth±à³Ì (Æß) SDPЭÒé

Service Discovery Protocol(SDP)ÌṩһÖÖÄÜÁ¦£¬ÈÃÓ¦ÓóÌÐòÓз½·¨·¢ÏÖÄÄÖÖ·þÎñ¿ÉÓÃÒÔ¼°ÕâÖÖ·þÎñµÄÌØÐÔ¡£
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LINUXÄÚºËÖÐminºÍmaxºêµÄѧϰ

add linux kernel min, max define:
include/linux/kernel.h
/*
 * min()/max() macros that also do
 * strict type-checking.. See the
 * "unnecessary" pointer comparison.
 */
#define min(x,y) \
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({ \
        typeof( ......

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