# \[Feature:1.9\] Etc.each\_passwd, each\_group **URL:** \ **Category:** Development\ **Created:** [February 13, 2009, 2:38pm UTC](https://www.ruby-forum.com/t/feature-1-9-etc-each-passwd-each-group/160261 "2009-02-13T14:38:05Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![nobu](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/n/e9c0ed/32.png) [@nobu](https://www.ruby-forum.com/u/nobu)\ **Post date:** [February 13, 2009, 2:38pm UTC](https://www.ruby-forum.com/t/feature-1-9-etc-each-passwd-each-group/160261/1 "2009-02-13T14:38:05Z")
e$B$J$+$@$G$9!#e(B Etc.each\_passwde$B$de(BEtc.each\_groupe$B$H$$$&$b$N$r;W$$$D$-$^$7$?!#e(B e$B$^$?!"JLL\>$H$7$Fe(BEtc::Passwd.eache$B$de(BEtc.::Group.eache$B$b!#e(B # e$B%Q%9%o!\<%I$r@\_Dj$7$F$$$J$$%f!\<%6L\>$N%j%9%He(B Etc::Passwd.find\_all {|u| u.passwd == “”}.map(&:name) e$B$H$+!#e(B # Index: ext/etc/etc.c — ext/etc/etc.c (revision 22104) +++ ext/etc/etc.c (working copy) @@ -187,4 +187,14 @@ passwd\_iterate(void) return Qnil; } + +static void +each\_passwd(void) +{ - if (passwd\_blocking) { - rb\_raise(rb\_eRuntimeError, “parallel passwd iteration”); - } - passwd\_blocking = Qtrue; - rb\_ensure(passwd\_iterate, 0, passwd\_ensure, 0); +} #endif @@ -212,11 +222,7 @@ etc\_passwd(VALUE obj) rb\_secure(4); if (rb\_block\_given\_p()) { - if (passwd\_blocking) { - ``` rb_raise(rb_eRuntimeError, "parallel passwd iteration"); ``` - } - passwd\_blocking = Qtrue; - rb\_ensure(passwd\_iterate, 0, passwd\_ensure, 0); - each\_passwd(); } - if (pw = getpwent()) { - else if (pw = getpwent()) { return setup\_passwd(pw); } @@ -225,4 +231,32 @@ etc\_passwd(VALUE obj) } +/\* Iterates for each entry in the /etc/passwd file if a block is given. - - If no block is given, returns the enumerator. - - - - The code block is passed an Struct::Passwd struct; see getpwent above for - - details. - - - - Example: - - - - ``` require 'etc' ``` - - - - ``` Etc.each_passwd {|u| ``` - - ``` puts u.name + " = " + u.gecos ``` - - ``` } ``` - - - - ``` Etc.each_passwd.collect {|u| u.gecos} ``` - - ``` Etc::Passwd.collect {|u| u.gecos} ``` - - - \*/ +static VALUE +etc\_each\_passwd(VALUE obj) +{ +#ifdef HAVE\_GETPWENT - RETURN\_ENUMERATOR(obj, 0, 0); - each\_passwd(); +#endif - return obj; +} - /\* Resets the process of reading the /etc/passwd file, so that the next call - to getpwent will return the first entry again. @@ -391,4 +425,14 @@ group\_iterate(void) return Qnil; } - +static void +each\_group(void) +{ - if (group\_blocking) { - rb\_raise(rb\_eRuntimeError, “parallel group iteration”); - } - group\_blocking = Qtrue; - rb\_ensure(group\_iterate, 0, group\_ensure, 0); +} #endif @@ -416,11 +460,7 @@ etc\_group(VALUE obj) rb\_secure(4); if (rb\_block\_given\_p()) { - if (group\_blocking) { - ``` rb_raise(rb_eRuntimeError, "parallel group iteration"); ``` - } - group\_blocking = Qtrue; - rb\_ensure(group\_iterate, 0, group\_ensure, 0); - each\_group(); } - if (grp = getgrent()) { - else if (grp = getgrent()) { return setup\_group(grp); } @@ -429,4 +469,32 @@ etc\_group(VALUE obj) } +/\* Iterates for each entry in the /etc/group file if a block is given. - - If no block is given, returns the enumerator. - - - - The code block is passed an Struct::Group struct; see getpwent above for - - details. - - - - Example: - - - - ``` require 'etc' ``` - - - - ``` Etc.each_group {|g| ``` - - ``` puts g.name + ": " + g.mem.join(', ') ``` - - ``` } ``` - - - - ``` Etc.each_group.collect {|g| g.name} ``` - - ``` Etc::Group.select {|g| !g.mem.empty?} ``` - - - \*/ +static VALUE +etc\_each\_group(VALUE obj) +{ +#ifdef HAVE\_GETPWENT - RETURN\_ENUMERATOR(obj, 0, 0); - each\_group(); +#endif - return obj; +} - /\* Resets the process of reading the /etc/group file, so that the next call - to getgrent will return the first entry again. @@ -505,8 +573,10 @@ Init\_etc(void) rb\_define\_module\_function(mEtc, “getpwent”, etc\_getpwent, 0); rb\_define\_module\_function(mEtc, “passwd”, etc\_passwd, 0); - rb\_define\_module\_function(mEtc, “each\_passwd”, etc\_each\_passwd, 0); - rb\_define\_module\_function(mEtc, “each\_group”, etc\_each\_group, 0); rb\_define\_module\_function(mEtc, “setgrent”, etc\_setgrent, 0); rb\_define\_module\_function(mEtc, “endgrent”, etc\_endgrent, 0); @@ -539,4 +609,6 @@ Init\_etc(void) NULL); rb\_define\_const(mEtc, “Passwd”, sPasswd); - rb\_extend\_object(sPasswd, rb\_mEnumerable); - rb\_define\_singleton\_method(sPasswd, “each”, etc\_each\_passwd, 0); #ifdef HAVE\_GETGRENT @@ -548,4 +620,6 @@ Init\_etc(void) ``` rb_define_const(mEtc, "Group", sGroup); ``` - rb\_extend\_object(sGroup, rb\_mEnumerable); - rb\_define\_singleton\_method(sGroup, “each”, etc\_each\_group, 0); #endif } ---
**Author:** ![nobu](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/n/e9c0ed/32.png) [@nobu](https://www.ruby-forum.com/u/nobu)\ **Post date:** [February 17, 2009, 2:47pm UTC](https://www.ruby-forum.com/t/feature-1-9-etc-each-passwd-each-group/160261/2 "2009-02-17T14:47:09Z")
e$B$^$D$b$He(B e$B$f$-$R$m$G$9e(B In message “Re: [ruby-dev:37999] [Feature:1.9] Etc.each\_passwd, each\_group” on Fri, 13 Feb 2009 22:30:01 +0900, Nobuyoshi N. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) writes: |Etc.each\_passwde$B$de(BEtc.each\_groupe$B$H$$$&$b$N$r;W$$$D$-$^$7$?!#e(B e$B8\_49@-$r5$$K$7$J$1$l$P!"e(BEtc.passwde$B$,e(Beach\_passwde$B$H$7$FF0:n$9e(B e$B$Y$-$G$O$J$$$+$H46$8$^$7$?!#e(B |e$B$^$?!"JLL\>$H$7$Fe(BEtc::Passwd.eache$B$de(BEtc.::Group.eache$B$b!#e(B | | # e$B%Q%9%o!\<%I$r@\_Dj$7$F$$$J$$%f!\<%6L\>$N%j%9%He(B | Etc::Passwd.find\_all {|u| u.passwd == “”}.map(&:name) | |e$B$H$+!#e(B e$B$3$C$A$O;?@.$7$^$9!#e(B ---
**Author:** ![nobu](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/n/e9c0ed/32.png) [@nobu](https://www.ruby-forum.com/u/nobu)\ **Post date:** [February 17, 2009, 4:58pm UTC](https://www.ruby-forum.com/t/feature-1-9-etc-each-passwd-each-group/160261/3 "2009-02-17T16:58:02Z")
e$B%A%1%C%He(B #1155 e$B$,99?7$5$l$^$7$?!#e(B (by Nobuyoshi N.) e$B%9%F!\<%?%9e(B Opene$B$+$ie(BClosede$B$KJQ99e(B e$B?JD=e(B % 0e$B$+$ie(B100e$B$KJQ99e(B ## Applied in changeset r22377. [http://redmine.ruby-lang.org/issues/show/1155](http://redmine.ruby-lang.org/issues/show/1155)