‣ merge from mksh R40-stable
move /etc/{,suid_}profile to /system/etc/ for Android (but do not make
the location of /etc configurable); rewrite manpage section about
/etc/{,suid_}profile, .profile, .mkshrc
This commit is contained in:
tg
parent
b0ee967d00
commit
e03b485d75
6
main.c
6
main.c
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@ -33,7 +33,7 @@
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#include <locale.h>
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#endif
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__RCSID("$MirOS: src/bin/mksh/main.c,v 1.195 2011/07/06 22:21:57 tg Exp $");
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__RCSID("$MirOS: src/bin/mksh/main.c,v 1.196 2011/07/16 17:08:19 tg Exp $");
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extern char **environ;
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@ -524,13 +524,13 @@ main(int argc, const char *argv[])
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warningf(false, "can't determine current directory");
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if (Flag(FLOGIN)) {
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include(KSH_SYSTEM_PROFILE, 0, NULL, 1);
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include(MKSH_SYSTEM_PROFILE, 0, NULL, 1);
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if (!Flag(FPRIVILEGED))
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include(substitute("$HOME/.profile", 0), 0,
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NULL, 1);
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}
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if (Flag(FPRIVILEGED))
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include("/etc/suid_profile", 0, NULL, 1);
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include(MKSH_SUID_PROFILE, 0, NULL, 1);
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else if (Flag(FTALKING)) {
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char *env_file;
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87
mksh.1
87
mksh.1
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@ -1,4 +1,4 @@
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.\" $MirOS: src/bin/mksh/mksh.1,v 1.271 2011/07/16 17:08:04 tg Exp $
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.\" $MirOS: src/bin/mksh/mksh.1,v 1.272 2011/07/16 17:08:20 tg Exp $
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.\" $OpenBSD: ksh.1,v 1.140 2011/04/23 10:14:59 sobrado Exp $
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.\"-
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.\" Copyright © 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
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@ -201,9 +201,9 @@ and
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parameters).
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It also processes the
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.Ev ENV
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parameter or
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.Pa $HOME/.mkshrc
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(see below).
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parameter or the
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.Pa mkshrc
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file (see below).
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For non-interactive shells, the
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.Ic trackall
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option is on by default (see the
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@ -215,12 +215,9 @@ If the basename the shell is called with (i.e. argv[0])
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starts with
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.Ql \-
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or if this option is used,
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the shell is assumed to be a login shell and the shell reads and executes
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the contents of
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.Pa /etc/profile
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and
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.Pa $HOME/.profile
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if they exist and are readable.
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the shell is assumed to be a login shell; see
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.Sx Startup files
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below.
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.It Fl p
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Privileged shell.
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A shell is
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@ -231,18 +228,10 @@ effective user ID or group ID (see
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.Xr getuid 2
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and
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.Xr getgid 2 ) .
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A privileged shell does not process
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.Pa $HOME/.profile
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nor the
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.Ev ENV
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parameter or
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.Pa $HOME/.mkshrc
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(see below).
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Instead, the file
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.Pa /etc/suid_profile
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is processed.
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Clearing the privileged option causes the shell to set
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its effective user ID (group ID) to its real user ID (group ID).
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For further implications, see
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.Sx Startup files .
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.It Fl r
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Restricted shell.
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A shell is
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@ -321,31 +310,25 @@ option is used and there is a non-option argument, it is used as the name;
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if commands are being read from a file, the file is used as the name;
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otherwise, the basename the shell was called with (i.e. argv[0]) is used.
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.Pp
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If the
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.Ev ENV
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parameter is set when an interactive shell starts (or, in the case of login
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shells, after any profiles are processed), its value is subjected to
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parameter, command, arithmetic, and tilde
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.Pq Sq \*(TI
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substitution and the resulting file
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(if any) is read and executed.
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If the
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.Ev ENV
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variable is unset or empty, the file
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.Pa $HOME/.mkshrc
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is read and processed like above instead, leaving
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.Ev ENV
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unchanged.
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This processing does not occur if
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.Ev ENV
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is set to a non-existing filename.
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.Pp
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The exit status of the shell is 127 if the command file specified on the
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command line could not be opened, or non-zero if a fatal syntax error
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occurred during the execution of a script.
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In the absence of fatal errors,
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the exit status is that of the last command executed, or zero, if no
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command is executed.
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.Ss Startup files
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For the actual location of these files, see
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.Sx FILES .
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A login shell processes the system profile first.
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A privileged shell then processes the suid profile.
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A non-privileged login shell processes the user profile next.
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A non-privileged interactive shell checks the value of the
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.Ev ENV
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parameter after subjecting it to parameter, command, arithmetic and tilde
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.Pq Sq \*(TI
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substitution; if unset or empty, the user mkshrc profile is processed;
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otherwise, if a file whose name is the substitution result exists,
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it is processed; non-existence is silently ignored.
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.Ss Command syntax
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The shell begins parsing its input by removing any backslash-newline
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combinations, then breaking it into
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@ -6116,22 +6099,30 @@ The interrupt and quit terminal characters cause the current line to be
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deleted and a new prompt to be printed.
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.El
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.Sh FILES
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.Bl -tag -width "/etc/suid_profileXX" -compact
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.Bl -tag -width XetcXsuid_profile -compact
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.It Pa \*(TI/.mkshrc
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User's startup script (interactive shells).
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Used only if
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.Ev ENV
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is unset or empty.
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The location can be changed at compile time (for embedded systems).
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User mkshrc profile (non-privileged interactive shells); see
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.Sx Startup files.
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The location can be changed at compile time (for embedded systems);
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AOSP Android builds use
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.Pa /system/etc/mkshrc .
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.It Pa \*(TI/.profile
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User's login profile.
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User profile (non-privileged login shells); see
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.Sx Startup files
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near the top of this manual.
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.It Pa /etc/profile
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System login profile.
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System profile (login shells); see
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.Sx Startup files.
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.It Pa /etc/shells
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Shell database.
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.It Pa /etc/suid_profile
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Privileged shell profile.
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Suid profile (privileged shells); see
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.Sx Startup files.
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.El
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.Pp
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Note: On Android,
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.Pa /system/etc/
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contains the system and suid profile.
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.Sh SEE ALSO
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.Xr awk 1 ,
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.Xr cat 1 ,
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15
sh.h
15
sh.h
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@ -151,7 +151,7 @@
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#endif
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#ifdef EXTERN
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__RCSID("$MirOS: src/bin/mksh/sh.h,v 1.485 2011/07/16 17:07:34 tg Exp $");
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__RCSID("$MirOS: src/bin/mksh/sh.h,v 1.486 2011/07/16 17:08:21 tg Exp $");
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#endif
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#define MKSH_VERSION "R40 2011/07/07"
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@ -866,8 +866,19 @@ EXTERN mksh_ari_t x_lins I__(-1); /* tty lines */
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#define OBRACE '{'
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#define CBRACE '}'
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/* Determine the location of the system (common) profile */
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#define KSH_SYSTEM_PROFILE "/etc/profile"
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/* This is deliberately not configurable via CPPFLAGS */
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#if defined(ANDROID)
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#define MKSH_ETC_LOCATION "/system/etc"
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#else
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#define MKSH_ETC_LOCATION "/etc"
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#endif
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#define MKSH_SYSTEM_PROFILE MKSH_ETC_LOCATION "/profile"
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#define MKSH_SUID_PROFILE MKSH_ETC_LOCATION "/suid_profile"
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/* Used by v_evaluate() and setstr() to control action when error occurs */
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#define KSH_UNWIND_ERROR 0 /* unwind the stack (longjmp) */
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