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unix — UNIX ?ɥᥤ???ץ??ȥ????ե??ߥ?

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#include <sys/types.h> #include <sys/un.h>

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UNIX ?ɥᥤ???ץ??ȥ????ե??ߥ??ϡ??̾??? socket(2) ?ᥫ?˥??????Ѥ??? ?????????? (?ޥ???????) ?ץ????????̿????󶡤????ץ??ȥ??뷲?Ǥ??? UNIX ?ɥᥤ???ե??ߥ??? SOCK_STREAM ?????? SOCK_DGRAM ?????åȥ????פ򥵥ݡ??Ȥ??? ???ɥ??å??󥰤˥ե????륷???ƥ??Υѥ?̾???Ȥ??ޤ???

???ɥ??å?????

UNIX ?ɥᥤ???Υ??ɥ쥹?ϡ? ???? 104 ʸ???β???Ĺ?Υե????륷???ƥ??ѥ?̾?Ǥ??? ???󥯥롼?ɥե????? ⟨sys/un.h⟩ ?????Υ??ɥ쥹?????????Ƥ??ޤ?:

struct sockaddr_un {
u_char	sun_len;
u_char	sun_family;
char	sun_path[104];
};

bind(2) ?? UNIX ?ɥᥤ?󥽥??åȤ?̾?????Х????ɤ??뤳?Ȥˤ??ꡢ ?ե????륷???ƥ??˥????åȥե????뤬?????????ޤ??? ???Υե??????ϥ????åȤ??????????????Ƥ??????????ޤ??󡣺????ˤ? unlink(2) ???Ȥ??ʤ????Фʤ??ޤ?????

UNIX ?ɥᥤ???ץ??ȥ????ե??ߥ??ϡ??֥????ɥ??㥹?ȥ??ɥ??å??󥰤? ???ϥ??å????????Ф????ɤΤ褦?ʷ??֤? “?磻???ɥ?????” ?ޥå??󥰤⥵?ݡ??? ???ޤ????????ƤΥ??ɥ쥹??¾?? UNIX ?ɥᥤ?󥽥??åȤ????Ф??뤤?????Хѥ?̾?Ǥ??? ?ޤ????ѥ?̾?򻲾Ȥ????Ȥ??ˤϡ? ?̾??Υե????륷???ƥ??Υ????????????ȥ????뤬Ŭ?Ѥ????ޤ??? ?㤨?? connect(2) ???뤤?? sendto(2) ?ν????Ͻ񤭹??߲?ǽ ?Ǥʤ????Фʤ??ޤ?????

?ץ??ȥ???

UNIX ?ɥᥤ???ץ??ȥ????ե??ߥ??? SOCK_STREAM ?????? SOCK_DGRAM ???֥??ȥ饯?????? ?򥵥ݡ??Ȥ??륷???ץ??ʥȥ??󥹥ݡ??ȥץ??ȥ??뤫???????ޤ??? ?ޤ??? SOCK_STREAM ?????åȤϡ? sendmsg(2) ?????? recvmsg(2) ??Ϳ?????????????? msg_control ?ե??????ɤλ??Ѥ??̤??? UNIX ?ե????뵭?һҤ??̿??򥵥ݡ??Ȥ??ޤ???

Ǥ?դ??????ʵ??һҤ????å????????˴ޤ?????????ǽ?Ǥ??? ?Ϥ??????ե????뵭?һҤϥ??󥯥롼?ɥե????? ⟨sys/socket.h⟩ ???????????? struct cmsghdr ???Ѥ??Ƶ??Ҥ????ޤ??????Υ??å??????? ?????פ? SCM_RIGHTS ?Ǥ??ꡢ???å??????Υǡ????????Ϥ????? ?ե????뵭?һҤ?ɽ?????????????????Ǥ??? ?Ϥ????뵭?һҤο??ϥ??å??????? length ?ե??????ɤ??????????Ƥ??ޤ??? length ?ե??????ɤϥإå??Υ??????? ?ե????뵭?һҤ??????Υ??????ι??פǤ???

???????줿???һҤϡ? dup(2) ?θƤӽФ??ˤ??ä????????줿???Τ褦?ʡ? ?????Ԥε??һҤ? ʣ?? ?Ǥ??? fcntl(2) ?ǥ??åȤ??줿?ץ????????ε??һҥե饰?ϡ? ?????Ԥˤ? ?Ϥ????ޤ????? ???????ԤäƤ??롢???뤤?ϰտ?Ū?˼??????????ʤ? ???һҤϡ??????????åȤ????????????줿?Ȥ??? ?????ƥ??ˤ??äƼ?ưŪ?˥????????????ޤ???

??Ϣ????

socket(2), intro(4) An Introductory 4.3 BSD Interprocess Communication Tutorial, PS1, 7. An Advanced 4.3 BSD Interprocess Communication Tutorial, PS1, 8.