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Add an option '--chroot-chdir' to settrans and make it chdir to this
directory before executing the target program. Also, look up the
executable in PATH.
With these changes we no longer need to use the shell inside the
chroot in the convenience scripts, and hence do not require it to be
installed inside the chroot.
* utils/fakeroot.sh: Simplify using the new option.
* utils/remap.sh: Likewise.
* utils/settrans.c (OPT_CHROOT_CHDIR): New constant.
(options): New option 'chroot-chdir'.
(main): Handle new option. Search for target executable in PATH.
* utils/fakeauth.c (main): Likewise.
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Fix case when $PWD contains spaces.
Pass directly arguments to command, to directly avoid escaping issues.
Based on suggestion by Ivan Shmakov <oneingray@gmail.com>
* utils/fakeroot.sh (TARGET): Do not define.
(sh): Rather pass PWD and commandline as parameters.
* utils/remap.sh: Likewise.
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remap.sh uses /bin/sh to first change the working directory and then
execute the given program in the remap context. But the arguments
given on the command line were not properly escaped:
% '/bin/sh' '-c' 'echo $0'
/bin/sh
% remap '/bin/sh' '-c' 'echo $0'
<empty line>
% remap-fixed '/bin/sh' '-c' 'echo $0'
/bin/sh
* utils/remap.sh: Escape arguments handed to /bin/sh so that they are
not evaluated prematurely.
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* utils/remap.sh (REMAPPED): Default to empty.
(while): Break as soon as there are no arguments any more. Do not break on
mapping parameters
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* trans/remap.c: New file.
* trans/Makefile (targets): Add remap.
(SRCS): Add remap.c.
(remap): Add rule.
* utils/remap.sh: New script.
* utils/Makefile (targets): Add remap.
(special-targets): Add remap.
(SRCS): Add remap.sh.
* NEWS: Advertise new translator
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