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1 | /* vi: set sw=4 ts=4: */
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2 | /*
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3 | * pivot_root.c - Change root file system. Based on util-linux 2.10s
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4 | *
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5 | * busyboxed by Evin Robertson
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6 | * pivot_root syscall stubbed by Erik Andersen, so it will compile
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7 | * regardless of the kernel being used.
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8 | *
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9 | * Licensed under GPL version 2, see file LICENSE in this tarball for details.
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10 | */
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11 | #include "libbb.h"
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12 |
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13 | extern int pivot_root(const char * new_root,const char * put_old);
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14 |
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15 | int pivot_root_main(int argc, char **argv);
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16 | int pivot_root_main(int argc, char **argv)
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17 | {
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18 | if (argc != 3)
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19 | bb_show_usage();
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20 |
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21 | if (pivot_root(argv[1], argv[2]) < 0) {
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22 | /* prints "pivot_root: <strerror text>" */
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23 | bb_perror_nomsg_and_die();
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24 | }
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25 |
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26 | return EXIT_SUCCESS;
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27 | }
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