Re: lug-bg: socket programming

[vd@xxxxxxxxx (Vladimir Dzhuvinov)]

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Zdravei,

>interesno... sys sockopt se oprawi :)
Prochetah predishnite ti syobstenia. Moga samo da kawa, che uwasno mnogo
se obyrkah, veche dori ne sym siguren kakyv beshe problema ;-)
No taka kakto si go reshil sys setsockopt ne mi se struva pravilno. 
Pod terminala niamah predvid takyv zakachen za socket, a tozi na koito
pishesh s tvoita klaviatura - dokolkoto si spomniam oste ;-) nali v
nachaloto pisa, che ne se transmitvat chars predi da si natisnal enter?
Tam izbroi nikakvi funkcii, kato lineread i getc, ala vsystnost za da
emulirash telnetski input se polzva read. Predi tova obache triabva da
setnesh tvoia terminal v non - canonical mode, zastoto, i ti go znaesh,
stdin e line buffered po default. Tova stava s tcsetattr(STDIN_FILENO,
...), i syotvetnite macros, sled tova vlizash v loop i chetesh ot
terminala po char s read() do kato (...); vednaga sled kato poluchish
char, go prastash po socket. Tuk veche ako iskash polzvai fd i write, ili
go stori na buffered stream i sled tova sys fflush go chisti.

Sto se otnasia do "izprastastata strana", tochno neia imah predvid, zavisi
obache ot koi krai na mrewata i na socketa gledash nestata ;-)
Triabvashe mai da kawa serverside, ama ne se setih za tazi duma...

Socketa si ima bufer, no toi e ot stranata ne kernel, zatova setvbuf niama
efekt, i zatova kazah, che socket e unbuffered ot strana na tvoiata user
space programa. socket() vrysta filedes, a ne FILE* stream.

uf! haide s pozdravi ;-)

Vladimir
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