getuid.2

操作系统设计与实现源码

%!PS-Adobe-1.0
%%Creator: devps (Pipeline Associates, Inc.)
%%CreationDate: Fri Sep 13 13:05:42 1996
%%Pages: (atend)
%%DocumentFonts: (atend)

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/startFig {
	/SavedState save def
	userdict maxlength dict begin
	currentpoint transform

	DocumentInitState setmiterlimit setgray setdash setlinejoin setlinecap
		setlinewidth setmatrix

	itransform moveto

	/ury exch def
	/urx exch def
	/lly exch def
	/llx exch def
	/y exch 72 mul resolution div def
	/x exch 72 mul resolution div def
	
	currentpoint /cy exch def /cx exch def

	/sx x urx llx sub div def
	/sy y ury lly sub div def

	sx sy scale

	cx sx div llx sub
	cy sy div ury sub translate
	
	/DefFigCTM matrix currentmatrix def

	/initmatrix {
		DefFigCTM setmatrix
	} def
	/defaultmatrix {
		DefFigCTM exch copy
	} def

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		DocumentInitState setmiterlimit setgray setdash 
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		DefFigCTM setmatrix
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	6 -1 roll exch lineto
	exch lineto
	exch lineto
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	newpath
	moveto
}bind  def
/doclip { llx lly urx ury clipFig } def
/endFig {
	end SavedState restore
}bind  def
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	fontnum psize slant height resolution currentpoint 
	pagesave restore gsave 
}bind  def
/globalend {
	grestore moveto
	/resolution exch def /height exch def
	/slant exch def /psize exch def /fontnum exch def
	F
	/pagesave save def
}bind  def


/fontnum 1 def 
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/Encoding-1 256 array def
0 1 255 {Encoding-1 exch /.notdef put} for
Encoding-1 8#301 StandardEncoding 8#101 26 getinterval putinterval %A-B
Encoding-1 8#341 StandardEncoding 8#141 26 getinterval putinterval %a-b
Encoding-1 8#241 StandardEncoding 8#301 16 getinterval putinterval %accents
Encoding-1 8#373 StandardEncoding 8#365 1 getinterval putinterval %dotlessi
Encoding-1
dup 8#41 /copyright put
dup 8#42 /registered put
dup 8#43 /trademark put
dup 8#44 /logicalnot put
dup 8#45 /Eth put
dup 8#46 /eth put
dup 8#47 /Thorn put
dup 8#50 /thorn put
dup 8#51 /brokenbar put
dup 8#52 /degree put
dup 8#53 /divide put
dup 8#54 /multiply put
dup 8#55 /minus put
dup 8#56 /onehalf put
dup 8#57 /onequarter put
dup 8#60 /threequarters put
dup 8#101 /Aacute put
dup 8#102 /Acircumflex put
dup 8#103 /Adieresis put
dup 8#104 /Agrave put
dup 8#105 /Aring put
dup 8#106 /Atilde put
dup 8#107 /Ccedilla put
dup 8#110 /Eacute put
dup 8#111 /Ecircumflex put
dup 8#112 /Edieresis put
dup 8#113 /Egrave put
dup 8#114 /Iacute put
dup 8#115 /Icircumflex put
dup 8#116 /Idieresis put
dup 8#117 /Igrave put
dup 8#120 /Ntilde put
dup 8#121 /Oacute put
dup 8#122 /Ocircumflex put
dup 8#123 /Odieresis put
dup 8#124 /Ograve put
dup 8#125 /Otilde put
dup 8#126 /Scaron put
dup 8#127 /Uacute put
dup 8#130 /Ucircumflex put
dup 8#131 /Udieresis put
dup 8#132 /Ugrave put
dup 8#133 /Ydieresis put
dup 8#134 /Zcaron put
dup 8#135 /aacute put
dup 8#136 /acircumflex put
dup 8#137 /adieresis put
dup 8#140 /agrave put
dup 8#141 /aring put
dup 8#142 /atilde put
dup 8#143 /ccedilla put
dup 8#144 /eacute put
dup 8#145 /ecircumflex put
dup 8#146 /edieresis put
dup 8#147 /egrave put
dup 8#150 /iacute put
dup 8#151 /icircumflex put
dup 8#152 /idieresis put
dup 8#153 /igrave put
dup 8#154 /ntilde put
dup 8#155 /oacute put
dup 8#156 /ocircumflex put
dup 8#157 /odieresis put
dup 8#160 /ograve put
dup 8#161 /otilde put
dup 8#162 /scaron put
dup 8#163 /uacute put
dup 8#164 /ucircumflex put
dup 8#165 /udieresis put
dup 8#166 /ugrave put
dup 8#167 /ydieresis put
dup 8#170 /zcaron put
pop

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Enc-dict /tmpstr2 50 string put
Enc-dict /tmpstr3 50 string dup (Encoding-) exch cvs pop put
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Enc-dict begin
tmpstr2 cvs /Enc-no exch def % Remember the number in a string
dup /OrigName exch def % remember the name
findfont dup maxlength dict /newdict exch def % get dictionary for new font
{ exch dup /FID ne
   { exch newdict 3 1 roll put }
   { pop pop } % Ignore FID
   ifelse
} forall
newdict begin
/Encoding
  tmpstr3 9 Enc-no putinterval tmpstr3 0 9 Enc-no length add getinterval
  cvn load
  def % Replace encoding
currentdict /UniqueID known
{ /UniqueID UniqueID Enc-no cvi 49999 mul add def } if % Derive New UniqueID
end % newdict
/FNlength OrigName tmpstr1 cvs length def % convert name, remember length
FNlength 1 add Enc-no length add string
dup 0 OrigName tmpstr1 cvs putinterval
dup FNlength (-) putinterval
dup FNlength 1 add Enc-no putinterval
dup 0 tmpstr1 0 FNlength getinterval putinterval % Add old name
cvn dup newdict /FontName 3 2 roll put newdict definefont
end % Enc-dict
} def
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%%EndProlog
%%Page: 1 1
BP
/slant 0 def
/height 0 def
480 V
10 R
720(GETUID)S
1105(\()S
1147(2)S
1205(\))S
2696(Eighth)S
(Edition)296 2989 A
4742(GETUID)S
5127(\()S
5169(2)S
5227(\))S
960 V
9 R
720(N)S
722(NA)S
790(AM)S
858(ME)S
940(E)S
1080 V
10 R
1080(getuid,)S
1381(geteuid)S
10 R-1
1702(-)S
10 R
1784(get)S
1932(user)S
(identity)307 2125 A
1248 V
9 R
720(S)S
722(SY)S
774(YN)S
842(NO)S
910(OP)S
978(PS)S
1030(SI)S
1082(IS)S
1115(S)S
1368 V
10 B
1080(#include)S
1482(<sys/types.h>)S
1488 V
1080(#include)S
1482(<unistd.h>)S
1728 V
1080(uid_t)S
1342(getuid\(void\))S
1848 V
1080(uid_t)S
1342(geteuid\(void\))S
2016 V
9 R
720(D)S
722(DE)S
790(ES)S
848(SC)S
900(CR)S
962(RI)S
1024(IP)S
1057(PT)S
1109(TI)S
1167(IO)S
1200(ON)S
1268(N)S
2136 V
10 B
1080(Getuid)S
10 R
1402(returns)S
1707(the)S
1855(real)S
2032(user)S
2225(ID)S
2357(of)S
2466(the)S
2614(current)S
2925(process,)S
10 B
3277(geteuid)S
10 R
3616(the)S
3764(effective)S
4143(user)S
4336(ID.)S
2304 V
1080(The)S
1268(real)S
1451(user)S
1650(ID)S
1788(identi\256es)S
2188(the)S
2342(person)S
2641(who)S
2845(is)S
(logged)273 2943 A
3247(in.)S
3407(The)S
3596(effective)S
3982(user)S
4182(ID)S
4321(gives)S
4565(the)S
4720(process)S
5054(addi-)S
2424 V
1080(tional)S
1340(permissions)S
1851(during)S
2144(execution)S
2565(of)S
(set-user-ID)455 2679 A
3164(mode)S
3417(processes,)S
3858(which)S
4134(use)S
10 B
4298(getuid)S
10 R
4597(to)S
4705(determine)S
5138(the)S
2544 V
1080(real-user-id)S
1571(of)S
1680(the)S
1828(process)S
2155(that)S
(invoked)323 2331 A
2679(them.)S
2712 V
9 R
720(S)S
722(SE)S
774(EE)S
832(E)S
913(A)S
915(AL)S
983(LS)S
1041(SO)S
1093(O)S
2832 V
10 B
1080(getgid)S
10 R
1343(\(2\),)S
10 B
1511(setuid)S
10 R
1769(\(2\).)S
7903 V
720(Page)S
941(1)S
2629(\()S
2671(January)S
3009(7,)S
(1986)200 3109 A
3317(\))S
4455(September)S
4911(13,)S
(1996)200 5061 A
8143 V
EP
%%Trailer
%%DocumentFonts: Times-Roman Times-Bold
%%Pages: 1