=================================================================== RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/sudo/Attic/visudo.8,v retrieving revision 1.3 retrieving revision 1.3.6.1 diff -u -r1.3 -r1.3.6.1 --- src/usr.bin/sudo/Attic/visudo.8 2000/03/27 03:44:39 1.3 +++ src/usr.bin/sudo/Attic/visudo.8 2002/01/18 17:20:23 1.3.6.1 @@ -1,16 +1,9 @@ -.rn '' }` -''' $RCSfile: visudo.8,v $$Revision: 1.3 $$Date: 2000/03/27 03:44:39 $ -''' -''' $Log: visudo.8,v $ -''' Revision 1.3 2000/03/27 03:44:39 millert -''' sudo 1.6.3; see http://www.courtesan.com/sudo/current.html for a list -''' of changes. -''' -''' Revision 1.4 2000/03/27 03:26:24 millert -''' Use 8 and 5 in the man page bodies as well. -''' -''' -.de Sh +.\" Automatically generated by Pod::Man version 1.15 +.\" Wed Jan 16 16:36:10 2002 +.\" +.\" Standard preamble: +.\" ====================================================================== +.de Sh \" Subsection heading .br .if t .Sp .ne 5 @@ -18,150 +11,106 @@ \fB\\$1\fR .PP .. -.de Sp +.de Sp \" Vertical space (when we can't use .PP) .if t .sp .5v .if n .sp .. -.de Ip +.de Ip \" List item .br .ie \\n(.$>=3 .ne \\$3 .el .ne 3 .IP "\\$1" \\$2 .. -.de Vb +.de Vb \" Begin verbatim text .ft CW .nf .ne \\$1 .. -.de Ve +.de Ve \" End verbatim text .ft R .fi .. -''' -''' -''' Set up \*(-- to give an unbreakable dash; -''' string Tr holds user defined translation string. -''' Bell System Logo is used as a dummy character. -''' +.\" Set up some character translations and predefined strings. \*(-- will +.\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left +.\" double quote, and \*(R" will give a right double quote. | will give a +.\" real vertical bar. \*(C+ will give a nicer C++. Capital omega is used +.\" to do unbreakable dashes and therefore won't be available. \*(C` and +.\" \*(C' expand to `' in nroff, nothing in troff, for use with C<> .tr \(*W-|\(bv\*(Tr +.ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p' .ie n \{\ -.ds -- \(*W- -.ds PI pi -.if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch -.if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch -.ds L" "" -.ds R" "" -''' \*(M", \*(S", \*(N" and \*(T" are the equivalent of -''' \*(L" and \*(R", except that they are used on ".xx" lines, -''' such as .IP and .SH, which do another additional levels of -''' double-quote interpretation -.ds M" """ -.ds S" """ -.ds N" """"" -.ds T" """"" -.ds L' ' -.ds R' ' -.ds M' ' -.ds S' ' -.ds N' ' -.ds T' ' +. ds -- \(*W- +. ds PI pi +. if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch +. if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch +. ds L" "" +. ds R" "" +. ds C` +. ds C' 'br\} .el\{\ -.ds -- \(em\| -.tr \*(Tr -.ds L" `` -.ds R" '' -.ds M" `` -.ds S" '' -.ds N" `` -.ds T" '' -.ds L' ` -.ds R' ' -.ds M' ` -.ds S' ' -.ds N' ` -.ds T' ' -.ds PI \(*p +. ds -- \|\(em\| +. ds PI \(*p +. ds L" `` +. ds R" '' 'br\} -.\" If the F register is turned on, we'll generate -.\" index entries out stderr for the following things: -.\" TH Title -.\" SH Header -.\" Sh Subsection -.\" Ip Item -.\" X<> Xref (embedded -.\" Of course, you have to process the output yourself -.\" in some meaninful fashion. -.if \nF \{ -.de IX -.tm Index:\\$1\t\\n%\t"\\$2" +.\" +.\" If the F register is turned on, we'll generate index entries on stderr +.\" for titles (.TH), headers (.SH), subsections (.Sh), items (.Ip), and +.\" index entries marked with X<> in POD. Of course, you'll have to process +.\" the output yourself in some meaningful fashion. +.if \nF \{\ +. de IX +. tm Index:\\$1\t\\n%\t"\\$2" .. -.nr % 0 -.rr F +. nr % 0 +. rr F .\} -.TH visudo 8 "1.6.3" "26/Mar/2000" "MAINTENANCE COMMANDS" -.UC -.if n .hy 0 +.\" +.\" For nroff, turn off justification. Always turn off hyphenation; it +.\" makes way too many mistakes in technical documents. +.hy 0 .if n .na -.ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p' -.de CQ \" put $1 in typewriter font -.ft CW -'if n "\c -'if t \\&\\$1\c -'if n \\&\\$1\c -'if n \&" -\\&\\$2 \\$3 \\$4 \\$5 \\$6 \\$7 -'.ft R -.. -.\" @(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2 -. \" AM - accent mark definitions +.\" +.\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2). +.\" Fear. Run. Save yourself. No user-serviceable parts. .bd B 3 -. \" fudge factors for nroff and troff +. \" fudge factors for nroff and troff .if n \{\ -. ds #H 0 -. ds #V .8m -. ds #F .3m -. ds #[ \f1 -. ds #] \fP +. ds #H 0 +. ds #V .8m +. ds #F .3m +. ds #[ \f1 +. ds #] \fP .\} .if t \{\ -. ds #H ((1u-(\\\\n(.fu%2u))*.13m) -. ds #V .6m -. ds #F 0 -. ds #[ \& -. ds #] \& +. ds #H ((1u-(\\\\n(.fu%2u))*.13m) +. ds #V .6m +. ds #F 0 +. ds #[ \& +. ds #] \& .\} -. \" simple accents for nroff and troff +. \" simple accents for nroff and troff .if n \{\ -. ds ' \& -. ds ` \& -. ds ^ \& -. ds , \& -. ds ~ ~ -. ds ? ? -. ds ! ! -. ds / -. ds q +. ds ' \& +. ds ` \& +. ds ^ \& +. ds , \& +. ds ~ ~ +. ds / .\} .if t \{\ -. ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u" -. ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u' -. ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u' -. ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u' -. ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u' -. ds ? \s-2c\h'-\w'c'u*7/10'\u\h'\*(#H'\zi\d\s+2\h'\w'c'u*8/10' -. ds ! \s-2\(or\s+2\h'-\w'\(or'u'\v'-.8m'.\v'.8m' -. ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u' -. ds q o\h'-\w'o'u*8/10'\s-4\v'.4m'\z\(*i\v'-.4m'\s+4\h'\w'o'u*8/10' +. ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u" +. ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u' +. ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u' +. ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u' +. ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u' +. ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u' .\} -. \" troff and (daisy-wheel) nroff accents +. \" troff and (daisy-wheel) nroff accents .ds : \\k:\h'-(\\n(.wu*8/10-\*(#H+.1m+\*(#F)'\v'-\*(#V'\z.\h'.2m+\*(#F'.\h'|\\n:u'\v'\*(#V' .ds 8 \h'\*(#H'\(*b\h'-\*(#H' -.ds v \\k:\h'-(\\n(.wu*9/10-\*(#H)'\v'-\*(#V'\*(#[\s-4v\s0\v'\*(#V'\h'|\\n:u'\*(#] -.ds _ \\k:\h'-(\\n(.wu*9/10-\*(#H+(\*(#F*2/3))'\v'-.4m'\z\(hy\v'.4m'\h'|\\n:u' -.ds . \\k:\h'-(\\n(.wu*8/10)'\v'\*(#V*4/10'\z.\v'-\*(#V*4/10'\h'|\\n:u' -.ds 3 \*(#[\v'.2m'\s-2\&3\s0\v'-.2m'\*(#] .ds o \\k:\h'-(\\n(.wu+\w'\(de'u-\*(#H)/2u'\v'-.3n'\*(#[\z\(de\v'.3n'\h'|\\n:u'\*(#] .ds d- \h'\*(#H'\(pd\h'-\w'~'u'\v'-.25m'\f2\(hy\fP\v'.25m'\h'-\*(#H' .ds D- D\\k:\h'-\w'D'u'\v'-.11m'\z\(hy\v'.11m'\h'|\\n:u' @@ -169,157 +118,157 @@ .ds Th \*(#[\s+2I\s-2\h'-\w'I'u*3/5'\v'-.3m'o\v'.3m'\*(#] .ds ae a\h'-(\w'a'u*4/10)'e .ds Ae A\h'-(\w'A'u*4/10)'E -.ds oe o\h'-(\w'o'u*4/10)'e -.ds Oe O\h'-(\w'O'u*4/10)'E -. \" corrections for vroff +. \" corrections for vroff .if v .ds ~ \\k:\h'-(\\n(.wu*9/10-\*(#H)'\s-2\u~\d\s+2\h'|\\n:u' .if v .ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'\v'-.4m'^\v'.4m'\h'|\\n:u' -. \" for low resolution devices (crt and lpr) +. \" for low resolution devices (crt and lpr) .if \n(.H>23 .if \n(.V>19 \ \{\ -. ds : e -. ds 8 ss -. ds v \h'-1'\o'\(aa\(ga' -. ds _ \h'-1'^ -. ds . \h'-1'. -. ds 3 3 -. ds o a -. ds d- d\h'-1'\(ga -. ds D- D\h'-1'\(hy -. ds th \o'bp' -. ds Th \o'LP' -. ds ae ae -. ds Ae AE -. ds oe oe -. ds Oe OE +. ds : e +. ds 8 ss +. ds o a +. ds d- d\h'-1'\(ga +. ds D- D\h'-1'\(hy +. ds th \o'bp' +. ds Th \o'LP' +. ds ae ae +. ds Ae AE .\} .rm #[ #] #H #V #F C +.\" ====================================================================== +.\" +.IX Title "visudo 8" +.TH visudo 8 "1.6.5" "January 16, 2002" "MAINTENANCE COMMANDS" +.UC .SH "NAME" visudo \- edit the sudoers file .SH "SYNOPSIS" -\fBvisudo\fR [ \fB\-s\fR ] [ \fB\-V\fR ] +.IX Header "SYNOPSIS" +\&\fBvisudo\fR [ \fB\-c\fR ] [ \fB\-f\fR \fIsudoers\fR ] [ \fB\-q\fR ] [ \fB\-s\fR ] [ \fB\-V\fR ] .SH "DESCRIPTION" -\fBvisudo\fR edits the \fIsudoers\fR file in a safe fashion, analogous to -\fIvipw\fR\|(8). \fBvisudo\fR locks the \fIsudoers\fR file against multiple +.IX Header "DESCRIPTION" +\&\fBvisudo\fR edits the \fIsudoers\fR file in a safe fashion, analogous to +\&\fIvipw\fR\|(8). \fBvisudo\fR locks the \fIsudoers\fR file against multiple simultaneous edits, provides basic sanity checks, and checks for parse errors. If the \fIsudoers\fR file is currently being -edited you will receive a message to try again later. In the -default configuration, the \fIvi\fR\|(1) editor is used, but there is -a compile time option to allow use of whatever editor the -environment variables \f(CWEDITOR\fR or \f(CWVISUAL\fR are set to. +edited you will receive a message to try again later. .PP -\fBvisudo\fR parses the \fIsudoers\fR file after the edit and will +There is a hard-coded list of editors that \fBvisudo\fR will use set +at compile-time that may be overridden via the \fIeditor\fR \fIsudoers\fR +\&\f(CW\*(C`Default\*(C'\fR variable. This list defaults to the path to \fIvi\fR\|(1) on +your system, as determined by the \fIconfigure\fR script. Normally, +\&\fBvisudo\fR does not honor the \f(CW\*(C`EDITOR\*(C'\fR or \f(CW\*(C`VISUAL\*(C'\fR environment +variables unless they contain an editor in the aforementioned editors +list. However, if \fBvisudo\fR is configured with the \fI\*(--with-enveditor\fR +flag or the \fIenveditor\fR \f(CW\*(C`Default\*(C'\fR variable is set in \fIsudoers\fR, +\&\fBvisudo\fR will use any the editor defines by \f(CW\*(C`EDITOR\*(C'\fR or \f(CW\*(C`VISUAL\*(C'\fR. +Note that this can be a security hole since it allows the user to +execute any program they wish simply by setting \f(CW\*(C`EDITOR\*(C'\fR or \f(CW\*(C`VISUAL\*(C'\fR. +.PP +\&\fBvisudo\fR parses the \fIsudoers\fR file after the edit and will not save the changes if there is a syntax error. Upon finding -an error, a message will be printed stating the line \fInumber\fR\|(s) -that the error occurred on and the user will receive the -\*(L"What now?\*(R" prompt. At this point the user may enter \*(L"e\*(R" -to re-edit the \fIsudoers\fR file, enter \*(L"x\*(R" to exit without +an error, \fBvisudo\fR will print a message stating the line \fInumber\fR\|(s) +where the error occurred and the user will receive the +\&\*(L"What now?\*(R" prompt. At this point the user may enter \*(L"e\*(R" +to re-edit the \fIsudoers\fR file, \*(L"x\*(R" to exit without saving the changes, or \*(L"Q\*(R" to quit and save changes. The -\*(L"Q\*(R" option should be used with extreme care because if \fBvisudo\fR +\&\*(L"Q\*(R" option should be used with extreme care because if \fBvisudo\fR believes there to be a parse error, so will \fBsudo\fR and no one -will be able to execute \fBsudo\fR again until the error is fixed. -Any other command at this prompt will print a short help message. -When editing the \fIsudoers\fR file after a parse error has been -detected the cursor will be placed on the line where the error -occurred (if the editor supports this feature). +will be able to \fBsudo\fR again until the error is fixed. +If \*(L"e\*(R" is typed to edit the \fIsudoers\fR file after a parse error +has been detected, the cursor will be placed on the line where the +error occurred (if the editor supports this feature). .SH "OPTIONS" -\fBvisudo\fR accepts the following command line option: -.Ip "-s" 4 +.IX Header "OPTIONS" +\&\fBvisudo\fR accepts the following command line options: +.Ip "\-c" 4 +.IX Item "-c" +Enable \fBcheck-only\fR mode. The existing \fIsudoers\fR file will be +checked for syntax and a message will be printed to the +standard output detailing the status of \fIsudoers\fR. +If the syntax check completes successfully, \fBvisudo\fR will +exit with a value of 0. If a syntax error is encountered, +\&\fBvisudo\fR will exit with a value of 1. +.Ip "\-f" 4 +.IX Item "-f" +Specify and alternate \fIsudoers\fR file location. With this option +\&\fBvisudo\fR will edit (or check) the \fIsudoers\fR file of your choice, +instead of the default, \f(CW@sysconfdir\fR@/sudoers. The lock file used +is the specified \fIsudoers\fR file with \*(L".tmp\*(R" appended to it. +.Ip "\-q" 4 +.IX Item "-q" +Enable \fBquiet\fR mode. In this mode details about syntax errors +are not printed. This option is only useful when combined with +the \fB\-c\fR flag. +.Ip "\-s" 4 +.IX Item "-s" Enable \fBstrict\fR checking of the \fIsudoers\fR file. If an alias is used before it is defined, \fBvisudo\fR will consider this a parse error. Note that it is not possible to differentiate between an -alias and a hostname or username that consists solely of upper case +alias and a hostname or username that consists solely of uppercase letters, digits, and the underscore ('_') character. -.Ip "-V" 4 -The \f(CW-V\fR (version) option causes \fBvisudo\fR to print the version number +.Ip "\-V" 4 +.IX Item "-V" +The \fB\-V\fR (version) option causes \fBvisudo\fR to print its version number and exit. .SH "ERRORS" +.IX Header "ERRORS" .Ip "sudoers file busy, try again later." 4 +.IX Item "sudoers file busy, try again later." Someone else is currently editing the \fIsudoers\fR file. .Ip "/etc/sudoers.tmp: Permission denied" 4 +.IX Item "/etc/sudoers.tmp: Permission denied" You didn't run \fBvisudo\fR as root. .Ip "Can't find you in the passwd database" 4 +.IX Item "Can't find you in the passwd database" Your userid does not appear in the system passwd file. .Ip "Warning: undeclared Alias referenced near ..." 4 +.IX Item "Warning: undeclared Alias referenced near ..." Either you are using a {User,Runas,Host,Cmnd}_Alias before defining it or you have a user or hostname listed that -consists solely of upper case letters, digits, and the +consists solely of uppercase letters, digits, and the underscore ('_') character. If the latter, you can ignore the warnings (\fBsudo\fR will not complain). In \fB\-s\fR (strict) -mode these are errors not warnings. +mode these are errors, not warnings. .SH "ENVIRONMENT" +.IX Header "ENVIRONMENT" The following environment variables are used only if \fBvisudo\fR -was configured with the \fI--with-env-editor\fR option: +was configured with the \fI\*(--with-env-editor\fR option: .PP .Vb 2 -\& EDITOR Used by visudo as the editor to use -\& VISUAL Used by visudo if EDITOR is not set +\& EDITOR Invoked by visudo as the editor to use +\& VISUAL Used Invoked visudo if EDITOR is not set .Ve .SH "FILES" -.PP +.IX Header "FILES" .Vb 2 \& /etc/sudoers List of who can run what \& /etc/sudoers.tmp Lock file for visudo .Ve .SH "AUTHOR" -Many people have worked on \fIsudo\fR over the years, this version of -\fBvisudo\fR was written by: +.IX Header "AUTHOR" +Many people have worked on \fIsudo\fR over the years; this version of +\&\fBvisudo\fR was written by: .PP .Vb 1 \& Todd Miller .Ve -See the HISTORY file in the sudo distribution for more details. +See the \s-1HISTORY\s0 file in the sudo distribution or visit +http://www.sudo.ws/sudo/history.html for more details. .SH "BUGS" +.IX Header "BUGS" If you feel you have found a bug in sudo, please submit a bug report -at http://www.courtesan.com/sudo/bugs/ +at http://www.sudo.ws/sudo/bugs/ .SH "DISCLAIMER" -\fBVisudo\fR is provided ``AS IS'\*(R' and any express or implied warranties, +.IX Header "DISCLAIMER" +\&\fBVisudo\fR is provided ``\s-1AS\s0 \s-1IS\s0'' and any express or implied warranties, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose are disclaimed. -See the LICENSE file distributed with \fBsudo\fR for complete details. +See the \s-1LICENSE\s0 file distributed with \fBsudo\fR for complete details. .SH "CAVEATS" +.IX Header "CAVEATS" There is no easy way to prevent a user from gaining a root shell if the editor used by \fBvisudo\fR allows shell escapes. .SH "SEE ALSO" -\fIsudo\fR\|(8), \fIvipw\fR\|(8). - -.rn }` '' -.IX Title "visudo 8" -.IX Name "visudo - edit the sudoers file" - -.IX Header "NAME" - -.IX Header "SYNOPSIS" - -.IX Header "DESCRIPTION" - -.IX Header "OPTIONS" - -.IX Item "-s" - -.IX Item "-V" - -.IX Header "ERRORS" - -.IX Item "sudoers file busy, try again later." - -.IX Item "/etc/sudoers.tmp: Permission denied" - -.IX Item "Can't find you in the passwd database" - -.IX Item "Warning: undeclared Alias referenced near ..." - -.IX Header "ENVIRONMENT" - -.IX Header "FILES" - -.IX Header "AUTHOR" - -.IX Header "BUGS" - -.IX Header "DISCLAIMER" - -.IX Header "CAVEATS" - .IX Header "SEE ALSO" - +\&\fIvi\fR\|(1), \fIsudo\fR\|(8), \fIvipw\fR\|(8).