Etc.getgrgid $B$,(B getgid $B$NCM$K8GDj$5$l$F$$$^$9(B

SSSBSSEDM5G7SSB · March 15, 2007, 4:37am

e$B?"ED$H?=$7$^$9!#e(B

e$B!!4{=P$+$b$7$l$^$;$s$,!“e(Bruby 1.8.6, 1.8.5-p32
e$B6&$K!Ve(Bruby-1.8.5-p12 e$B$^$Ge(B
e$B$OBg>fIW$@$C$?e(B Etc.getgrgid
e$B$,$*$+$7$$!W$H$$$&Js9p$,<RFb$G$”$j$^$7$?!#e(B

[root@example ~]# egrep ‘^root|^users’ /etc/group
root:x:0:root
users:x:100:foo,bar,hoge,fuga

[root@example ~]$ irb
irb(main):001:0> require ‘etc’
=> true
irb(main):002:0> Etc.getgrgid(100)
=> #<struct Struct::Group name=“users”, passwd=“x”, gid=100, mem=[“foo”,
“bar”, “hoge”, “fuga”]>
irb(main):003:0> RUBY_VERSION
=> “1.8.5”
irb(main):004:0> RUBY_PLATFORM
=> “i686-linux”
[root@example ~]$ irb
irb(main):001:0> require ‘etc’
=> true
irb(main):002:0> Etc.getgrgid(100)
=> #<struct Struct::Group name=“root”, passwd=“x”, gid=0, mem=[“root”]>
irb(main):003:0> RUBY_VERSION
=> “1.8.6”
irb(main):004:0> RUBY_PLATFORM
=> “i686-linux”

e$B0J2<$NJQ99$K$h$k1F6A$N$h$&$G$9!#e(B

http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/tags/v1_8_5_35/ext/etc/etc.c?r1=10775&r2=11521
http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/tags/v1_8_6/ext/etc/etc.c?r1=10979&r2=11526

getgrgid() e$B$KEO$9CM$re(B getgid()
e$B$G<hF@$7$F$$$k$N$G$9$,!"$3$l$@$He(B etc_getgrgid(obj, id)
e$B$Ne(B id e$B$,A4$/;H$o$l$^$;$s$7e(B…

e$B!!@5$7$/$J$$$3$H$O>5CN$G0J2<$N=$@5$r$9$k$H!“$H$j$”$($:e(B i386
e$B$Ne(B CentOS
4.4 e$B>e$G$O@5$7$$7k2L$,F@$i$l$F$$$^$9!#e(B

— etc.c.orig 2007-03-15 12:07:33.000000000 +0900
+++ etc.c 2007-03-15 12:15:06.000000000 +0900
@@ -337,7 +337,8 @@
struct group *grp;

 rb_secure(4);

gid = getgid();
+/* gid = getgid(); */

gid = NUM2INT(id);
grp = getgrgid(gid);
if (grp == 0) rb_raise(rb_eArgError, “can’t find group for %d”,
gid);
return setup_group(grp)

e$B!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2#N#e#t#w#o#r#ke(B e$B!_e(B
e$B#P#e#o#p#l#e!2e(B
e$B!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1e(B
e$B!!3t<02q<Re(B e$B%M%C%H%U%)%l%9%He(B
e$B!!;v6H?d?J<<e(B Dr.WEB e$BC4Ev!!!e(B e$B!!!e(B e$B?“EDe(B
e$BM5G7e(B
e$B!!e(Bhttp://www.netforest.ad.jp/e$B!!!e(B [email protected]
e$B!!e(Btel:045-663-6277e$B!!e(Bfax:045-663-6278
e$B!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2e(B
e$B!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1e(B
e$B!!e(Bhttp://www.kamome.or.jp/ <<< ISP FTTH/ADSL/AIR-EDGE/8&16IP
e$B!!e(Bhttp://drweb.jp/e$B!!!e(B <<< e$BM=B,$9$k%”%s%A%&%#%k%9e(B

SSSBSSEDM5G7SSB · March 16, 2007, 9:40am

At Thu, 15 Mar 2007 12:36:10 +0900,
æ¤ç”°è£•ä¹‹ wrote:

ã€€æ—¢å‡ºã‹ã‚‚ã—ã‚Œã¾ã›ã‚“ãŒã€ruby 1.8.6, 1.8.5-p32 å…±ã«ã€Œruby-1.8.5-p12 ã¾ã§
ã¯å¤§ä¸ˆå¤«ã ã£ãŸ Etc.getgrgid ãŒãŠã‹ã—ã„ã€ã¨ã„ã†å ±å‘ŠãŒç¤¾å†…ã§ã‚ã‚Šã¾ã—ãŸã€‚
(snip)
ä»¥ä¸‹ã®å¤‰æ›´ã«ã‚ˆã‚‹å½±éŸ¿ã®ã‚ˆã†ã§ã™ã€‚

http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/tags/v1_8_5_35/ext/etc/etc.c?r1=10775&r2=11521
http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/tags/v1_8_6/ext/etc/etc.c?r1=10979&r2=11526

getgrgid() ã«æ¸¡ã™å€¤ã‚’ getgid() ã§å–å¾—ã—ã¦ã„ã‚‹ã®ã§ã™ãŒã€ã“ã‚Œã ã¨ etc_getgrgid(obj, id)
ã® id ãŒå…¨ãä½¿ã‚ã‚Œã¾ã›ã‚“ã—…

ã€€ã“ã†ã§ã—ã‚‡ã†ã‹ã€‚

Index: etc.c

— etc.c (revision 12068)
+++ etc.c (working copy)
@@ -337,7 +337,7 @@
struct group *grp;

 rb_secure(4);

gid = getgid();

gid = PW_VAL2GID(id);
grp = getgrgid(gid);
if (grp == 0) rb_raise(rb_eArgError, “can’t find group for %d”,
gid);
return setup_group(grp);

–
/
/__ __ Akinori.org / MUSHA.org
/ ) ) ) ) / FreeBSD.org / Ruby-lang.org
Akinori MUSHA aka / (_ / ( (__( @ iDaemons.org / and.or.jp

“Different eyes see different things,
Different hearts beat on different strings –
But there are times for you and me when all such things agree”

SSSBSSEDM5G7SSB · March 16, 2007, 9:50am

Fri, 16 Mar 2007 17:39:52 +0900 e$B$N%a!<%k$K$F!"e(B
“Akinori MUSHA” [email protected] e$B$5$s$O=q$-$^$7$?e(B :

 struct group *grp;

 rb_secure(4);
gid = getgid();

gid = PW_VAL2GID(id);
grp = getgrgid(gid);
if (grp == 0) rb_raise(rb_eArgError, “can’t find group for %d”, gid);
return setup_group(grp);

http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=11786
e$B$O5$e(B
e$B$K$7$J$/$F$bNI$$$G$9$+!)e(B

e$B$9$$$^$;$s!"NI$/J,$+$C$F$^$;$s$,e(B…

diff -rc ruby-1.8.6/ext/etc/etc.c ruby-1.8.6.patched/ext/etc/etc.c
*** ruby-1.8.6/ext/etc/etc.c Tue Feb 13 08:01:19 2007
— ruby-1.8.6.patched/ext/etc/etc.c Fri Mar 16 17:21:42 2007

*** 337,343 ****
struct group *grp;

  rb_secure(4);

! gid = getgid();
grp = getgrgid(gid);
if (grp == 0) rb_raise(rb_eArgError, “can’t find group for %d”,
gid);
return setup_group(grp);
— 337,343 ----
struct group *grp;

  rb_secure(4);

! gid = NUM2GIDT(id);
grp = getgrgid(gid);
if (grp == 0) rb_raise(rb_eArgError, “can’t find group for %d”,
gid);
return setup_group(grp);
diff -rc ruby-1.8.6/ruby.h ruby-1.8.6.patched/ruby.h
*** ruby-1.8.6/ruby.h Thu Feb 15 11:52:43 2007
— ruby-1.8.6.patched/ruby.h Fri Mar 16 17:21:25 2007

*** 163,168 ****
— 163,187 ----

define OFFT2NUM(v) INT2NUM(v)

#endif

#ifndef PIDT2NUM
#define PIDT2NUM(v) LONG2NUM(v)
#endif
#ifndef NUM2PIDT
#define NUM2PIDT(v) NUM2LONG(v)
#endif
#ifndef UIDT2NUM
#define UIDT2NUM(v) LONG2NUM(v)
#endif
#ifndef NUM2UIDT
#define NUM2UIDT(v) NUM2LONG(v)
#endif
#ifndef GIDT2NUM
#define GIDT2NUM(v) LONG2NUM(v)
#endif
#ifndef NUM2GIDT
#define NUM2GIDT(v) NUM2LONG(v)
#endif
#define FIX2LONG(x) RSHIFT((long)x,1)
#define FIX2ULONG(x) (((unsigned long)(x))>>1)
#define FIXNUM_P(f) (((long)(f))&FIXNUM_FLAG)

e$B!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2#N#e#t#w#o#r#ke(B e$B!_e(B
e$B#P#e#o#p#l#e!2e(B
e$B!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1e(B
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e$BM5G7e(B
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e$B!!e(Btel:045-663-6277e$B!!e(Bfax:045-663-6278
e$B!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2e(B
e$B!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1e(B
e$B!!e(Bhttp://www.kamome.or.jp/ <<< ISP FTTH/ADSL/AIR-EDGE/8&16IP
e$B!!e(Bhttp://drweb.jp/e$B!!!e(B <<< e$BM=B,$9$k%”%s%A%&%#%k%9e(B

SSSBSSEDM5G7SSB · March 16, 2007, 10:20am

e$B?"ED$G$9!#e(B

Fri, 16 Mar 2007 17:39:52 +0900 e$B$N%a!<%k$K$F!"e(B
“Akinori MUSHA” [email protected] e$B$5$s$O=q$-$^$7$?e(B :
:

gid = getgid();

gid = PW_VAL2GID(id);
grp = getgrgid(gid);
if (grp == 0) rb_raise(rb_eArgError, “can’t find group for %d”, gid);
return setup_group(grp);

e$B$3$A$i$N=$@5$G$bL^O@LdBj$"$j$^$;$s$G$7$?!#e(B

$ for i in 0 1 511; do ruby -r ‘etc’ -e “p Etc.getgrgid($i)”; done
#<struct Struct::Group name=“root”, passwd=“”, gid=0, mem=[“root”]>
#<struct Struct::Group name=“bin”, passwd=“”, gid=1, mem=[“root”, “bin”,
“daemon”]>
#<struct Struct::Group name=“ueda”, passwd=“x”, gid=511, mem=[]>

e$B!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2#N#e#t#w#o#r#ke(B e$B!_e(B
e$B#P#e#o#p#l#e!2e(B
e$B!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1e(B
e$B!!3t<02q<Re(B e$B%M%C%H%U%)%l%9%He(B
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e$BM5G7e(B
e$B!!e(Bhttp://www.netforest.ad.jp/e$B!!!e(B [email protected]
e$B!!e(Btel:045-663-6277e$B!!e(Bfax:045-663-6278
e$B!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2!2e(B
e$B!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1!1e(B
e$B!!e(Bhttp://www.kamome.or.jp/ <<< ISP FTTH/ADSL/AIR-EDGE/8&16IP
e$B!!e(Bhttp://drweb.jp/e$B!!!e(B <<< e$BM=B,$9$k%”%s%A%&%#%k%9e(B

SSSBSSEDM5G7SSB · March 16, 2007, 10:27am

At Fri, 16 Mar 2007 17:49:23 +0900,
æ¤ç”°è£•ä¹‹ wrote:

— etc.c (revision 12068)

http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=11786 ã¯æ°—
ã«ã—ãªãã¦ã‚‚è‰¯ã„ã§ã™ã‹ï¼Ÿ

ã™ã„ã¾ã›ã‚“ã€è‰¯ãåˆ†ã‹ã£ã¦ã¾ã›ã‚“ãŒ…
(patch snipped)

ã€€ã“ã‚Œã ã¨ãƒãƒƒã‚¯ãƒãƒ¼ãƒˆã¨ã—ã¦ã¯ä¸é€”åŠç«¯ãªã®ã§ã€ã¾ãšã¯ä¸Šè¨˜ã®ä¿®æ£ã‚’
å…¥ã‚Œã¦ã‹ã‚‰æ¤œè¨Žã—ãŸã„ã¨æ€ã„ã¾ã™ã€‚

ã€€ã”å ±å‘Šã”æ¤œè¨¼ã‚ã‚ŠãŒã¨ã†ã”ã–ã„ã¾ã—ãŸã€‚

–
/
/__ __ Akinori.org / MUSHA.org
/ ) ) ) ) / FreeBSD.org / Ruby-lang.org
Akinori MUSHA aka / (_ / ( (__( @ iDaemons.org / and.or.jp

“Different eyes see different things,
Different hearts beat on different strings –
But there are times for you and me when all such things agree”

Etc.getgrgid $B$,(B getgid $B$NCM$K8GDj$5$l$F$$$^$9(B

Index: etc.c

define OFFT2NUM(v) INT2NUM(v)

Etc.getgrgid $B$,(B getgid $B$NCM$K8GDj$5$l$F$$$^$9(B