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function old new delta getopt32 1370 1385 +15 sulogin_main 490 494 +4 realpath_main 84 86 +2 sleep_main 76 77 +1 mt_main 256 257 +1 printenv_main 75 74 -1 fdformat_main 546 545 -1 usleep_main 44 42 -2 setlogcons_main 77 75 -2 ed_main 2654 2649 -5 deallocvt_main 69 64 -5 addgroup_main 373 368 -5 mkfs_minix_main 2989 2982 -7 tail_main 1221 1213 -8 sv_main 1254 1241 -13 du_main 348 328 -20 tftp_main 325 302 -23 split_main 581 558 -23 nc_main 1000 977 -23 diff_main 891 868 -23 arping_main 1797 1770 -27 ls_main 893 847 -46 od_main 2797 2750 -47 readprofile_main 1944 1895 -49 tcpudpsvd_main 1973 1922 -51 udhcpc_main 2590 2513 -77 grep_main 824 722 -102 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 5/22 up/down: 23/-560) Total: -537 bytes text data bss dec hex filename 796973 658 7428 805059 c48c3 busybox_old 796479 662 7420 804561 c46d1 busybox_unstripped
49 lines
1.0 KiB
C
49 lines
1.0 KiB
C
/* vi: set sw=4 ts=4: */
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/*
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* Linux32/linux64 allows for changing uname emulation.
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*
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* Copyright 2002 Andi Kleen, SuSE Labs.
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*
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* Licensed under GPL v2 or later, see file License for details.
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*/
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#include <sys/personality.h>
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#include "libbb.h"
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int setarch_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
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int setarch_main(int argc ATTRIBUTE_UNUSED, char **argv)
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{
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int pers = -1;
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/* Figure out what personality we are supposed to switch to ...
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* we can be invoked as either:
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* argv[0],argv[1] -> "setarch","personality"
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* argv[0] -> "personality"
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*/
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retry:
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if (argv[0][5] == '6') /* linux64 */
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pers = PER_LINUX;
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else if (argv[0][5] == '3') /* linux32 */
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pers = PER_LINUX32;
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else if (pers == -1 && argv[1] != NULL) {
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pers = PER_LINUX32;
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++argv;
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goto retry;
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}
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/* make user actually gave us something to do */
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++argv;
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if (argv[0] == NULL)
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bb_show_usage();
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/* Try to set personality */
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if (personality(pers) >= 0) {
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/* Try to execute the program */
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BB_EXECVP(argv[0], argv);
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}
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bb_simple_perror_msg_and_die(argv[0]);
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}
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