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annotate toys/other/chroot.c @ 1676:cbb1aca81eca draft

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Make toy_exec() check if argc is in optargs and deal with it there so we don't need a separate xexec_optargs().
author Rob Landley <rob@landley.net>
date Sat, 07 Feb 2015 16:17:44 -0600
parents 144d5ba7d410
children
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786841fdb1e0 Reindent to two spaces per level. Remove vi: directives that haven't worked right in years (ubuntu broke its' vim implementation). Remove trailing spaces. Add/remove blank lines. Re-wordwrap in places. Update documentation with new coding style.
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1 /* chroot.c - Run command in new root directory.
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0efba0e70c43 Other chroots fall back to "/bin/sh -i", so add the -i.
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2 *
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3 * Copyright 2007 Rob Landley <rob@landley.net>
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4
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064fc1b8b7b1 Chroot should stop option parsing at the first non-option argument.
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5 USE_CHROOT(NEWTOY(chroot, "^<1", TOYFLAG_USR|TOYFLAG_SBIN))
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6
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7 config CHROOT
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parents: 656
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8 bool "chroot"
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parents: 656
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9 default y
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parents: 656
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10 help
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parents: 656
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11 usage: chroot NEWPATH [commandline...]
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parents: 656
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13 Run command within a new root directory. If no command, run /bin/sh.
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14 */
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15
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16 #include "toys.h"
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17
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18 void chroot_main(void)
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19 {
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parents: 656
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20 char *binsh[] = {"/bin/sh", "-i", 0};
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144d5ba7d410 Replace users of xexec(toys.optargs) with xexec_optargs(0) to avoid free/reuse bug during argument parsing.
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21
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parents: 656
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22 if (chdir(*toys.optargs) || chroot(".")) perror_exit("%s", *toys.optargs);
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cbb1aca81eca Make toy_exec() check if argc is in optargs and deal with it there so we don't need a separate xexec_optargs().
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23 if (toys.optargs[1]) xexec(toys.optargs+1);
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144d5ba7d410 Replace users of xexec(toys.optargs) with xexec_optargs(0) to avoid free/reuse bug during argument parsing.
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24 else xexec(binsh);
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25 }