????????? ?????? ? ?????????? Unix SVR4

1
????????? ?????? ? ?????????? Unix SVR4 ????????
(???????????) ??????? ?.?. ??/???
??? ??????????? ?????????? ???? ??????????? ?
?????? ?????????? ????????? ???????? ???-??? ??
2009-2018 ?.?.
2
??????????? ??????????

• 37 ????? (http//ccfit.nsu.ru/deviv/courses/unix/
  tasks.html)
• ?? 5 ?????????? ????? 23 ??????, ?? ??? 10 ??
  ?????? ????? ?????
• ?? 4 11 ?????
• ?? 3 6 ?????
• ?????? ???? ??????? ?? ?? Solaris
  (solarka.ccfit.nsu.ru ??? ??????? ??????? ?. ?.
  310).

3
??? ????? Solaris

• ??, ?????????? ?? ???? Unix System V Release 4.
• ?????? ????????? ????????????? ATT Unix
• ??????????????? ????????? Oracle (????? Sun
  Microsystems)
• ?????????? ???????????? ?????????? x86/x64, SPARC
  v9
• ???? ?????????? ?????? (?????????? ????????!)
  Solaris Express, ????????? ?? ????? Oracle

4
??? Solaris ?????????? ?? Linux

• Solaris ??? ?????? )
• Linux ??????????? ?????? ???? Unix,
  ???????????????? ??? ????????? GPL
• ??? ??????? ???????????? ????????????????? API
  POSIX/X-Open, ?? Solaris ??????????????, ? Linux
  ???.
• ??????? ????? ?????? ABI (??????? ????????????)

5
??????????????? ??????????

• ?. ????????, ?. ????, ?. ??????, ?????????
  ???????????????? ? UNIX. ??????????? ????????????
  ?? ?????????? ?? (???? ? ??????????)
• ?. ??????????? ???????????? ??????? UNIX
• ?. ?. ???????, ?. ?. ???? UNIX ????????????????
  ????????????????
• R. McDougal, J.Mauro Solaris Internals (???
  ???????????)

6
??????????????? ??????????

• Man(1)
• ?????????? ????????? ???????????, ???????? ??
  ????????? ?????? ?? ??????? man
• Oracle Solaris 10/11 documentation
  http//www.oracle.com/technetwork/documentation/so
  laris-10-192992.html , ????. docs.sun.com??? ??
  ???? ? ??? man-???????? ? html c ????????????? ?
  ???????
• ???????? ?????? http//hg.openindiana.org
• ??????????? upstream/oracle ??????????????
  ????????????? c???????? OpenSolaris 10/11 ?? 2010
  ???.
• ?????????? ??????? ????????? ? ????????
  upstream/oracle/onnv-gate

7
man(1)

• ?????? ??????? man strcpy ??? man -s 2 write
• ????? ?? ?????????? apropos write
• ?????? ??????
• 1 ??????? shell
• 1M ??????? shell, ????????? ??????????????
• 2 ????????? ??????
• 3? ??????????? ?????????? ?

8
?????? ???????? man

• ????????? (TITLE) - ?????? ??? ????????????
  ??????? ??? ?????????? ??????
• . ?????? (SECTION) - ?????? ???????????
• . ?????????? (LIBRARY) - ??? ?????? 3,
  ???????????? ???????, ???? ?? C, S, M, E, X ???
  G.
• . ??? (NAME) - ??? ? ??????? ????????
  ?????????? ?????? ??? ???????????? ??????? (?
  ????? ??????)
• . ????????????? (SYNOPSIS) - ??? ???????
  ????????? ?????/???????????? ???????.
• . ???????? (DESCRIPTION) - ????????? ??????
  ?????????? ?????? ??? ???????.
• . ???????????? ???????? (RETURN VALUE) - ???
  ???????????????? ???????????? ???.
• . ??. ????? (SEE ALSO) - ???????? ???????????,
  ??????? ????????? ? ???? ????????.
• . ???????? (ATTRIBUTES) - ????? ??????????
  ????????????? ???????, thread-safety, ?????????
  ??????? ?????? ? ?.?.
• ????? ????, ???????? ??????????? ????? ?????????
  ???????
• . ??????? (EXAMPLES)
• . ????? (FILES)
• . ????????? (DIAGNOSTICS)
• . ????????? (NOTES)
• . (??????????????) WARNINGS
• . (??????) BUGS
• . (????????) CAVEATS

9
?????? ???????? ???????????

• ???
• perror - ?????????? ????????? ????????? ??
  ??????
• ?????????????
• include ltstdio.hgt
• void perror(const char s)
• ????????
• perror ??????? ? ??????????? ?????
  ??????????? ?????????, ??????????? ?????????
  ??????, ???????????? ??? ?????? ????????? ???
  ???????????? ???????. ??????? ?????????? ??????
  ????????? s, ????? ????????? ? ??????, ?????
  ????????? ? ??????? ??????.
• ... ????? ?????? ??????? ?? ???????
  ?????????? errno, ??????? ??????????????? ???
  ?????????, ?? ?? ????????? ??? ????????
  ????????? ??????.
• ??. ?????
• intro(2), fmtmsg(3C), strerror(3C).

10
?????? ???????? ???????????

• ???
• time - ???????? ?????
• ?????????????
• include ltsys/types.hgt
• include lttime.hgt
• time_t time(time_t tloc)
• ????????
• time ?????????? ???????? ??????? ?
  ???????? ?? 1 ?????? 1970, 000000 UTC. ????
  tloc ?? ????? ????, ???????????? ???????? ?????
  ????? ????????? ? ??????????, ?? ???????
  ????????? tloc.
• ???????????? ????????
• ??? ???????? ??????????, time ??????????
  ???????? ???????. ????? ???????????? ????????
  -1 ? ???????? errno ???????? ??????? ??????.
• ??. ?????
• ctime(3C), stime(2).

11
??????? ????????????? time(2)

• ??????? ????????????? time(2)
• . ?????????? ? ?????????????
• include ltsys/types.hgt
• include lttime.hgt
• time_t t1, t2, t3, t4
• time_t tp t2
• . ??????? ???????? ????????? time(2) ????????,
  ??? ??????
• ?????????????? ???????????? ????????
• t1 time ( 0 )
• . ?????????????????? ????????? ? ????????
  ?????????
• t3 time ( tp )
• . ????? ?????????? ? ???????? ?????????
• (void) time ( t4 )

12
?????? ???????? ???????????

• ???
• ctime, localtime, gmtime, asctime, tzset -
  ?????????????? ???? ? ??????? ? ??????
• ?????????????
• include lttime.hgt
• char ctime(const time_t clock)
• struct tm localtime(const time_t clock)
• struct tm gmtime(const time_t clock)
• char asctime(const struct tm tm)
• extern time_t timezone, altzone
• extern int daylight
• extern char tzname2
• void tzset(void)
• ????????
• ctime, localtime ? gmtime ????????
  ???????? ???? ????????? ?? time_t,
  ?????????????? ????? ? ???????? ? 000000 UTC 1
  ?????? 1970. ctime ?????????? ????????? ??
  ?????? ?? 26 ???????? ?????????? ???? ...
• Sun Sep 16 010352 1973\n\0

13
?????? ???????? ??????????? (???????????)

• ... ?????????? ???? ??????? ? ???????
  ??????????, ? ????? ???????? ????????? tm,
  ?????????? ? ????? lttime.hgt. ????????
  ????????? ???????? ???
• struct tm
• int tm_sec / seconds after minute
  0,61 /
• int tm_min / minutes after the hour
  0,59 /
• int tm_hour / hour since midnight 0,23
  /
• int tm_mday / day of the month 1,31 /
• int tm_mon / months since January
  0,11 /
• int tm_year / years since 1900 /
• int tm_wday / days since Sunday 0,6 /
• int tm_yday / days since January 1
  0,365 /
• int tm_isdst / flag for alternate
  daylight savings time /