diff options
author | Bjørn Mork <bjorn@mork.no> | 2015-05-15 10:20:47 +0200 |
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committer | Bjørn Mork <bjorn@mork.no> | 2015-05-15 10:20:47 +0200 |
commit | 73b16af8feec390afbabd9356d6e5e83c0390838 (patch) | |
tree | 3730020ba2f9caeb9d7815a975af51830b51ce11 /util-linux/setarch.c |
busybox: imported from http://www.busybox.net/downloads/busybox-1.13.3.tar.bz2busybox-1.13.3
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Diffstat (limited to 'util-linux/setarch.c')
-rw-r--r-- | util-linux/setarch.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/util-linux/setarch.c b/util-linux/setarch.c new file mode 100644 index 0000000..8213382 --- /dev/null +++ b/util-linux/setarch.c @@ -0,0 +1,48 @@ +/* vi: set sw=4 ts=4: */ +/* + * linux32/linux64 allows for changing uname emulation. + * + * Copyright 2002 Andi Kleen, SuSE Labs. + * + * Licensed under GPL v2 or later, see file License for details. +*/ + +#include <sys/personality.h> + +#include "libbb.h" + +int setarch_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; +int setarch_main(int argc UNUSED_PARAM, char **argv) +{ + int pers; + + /* Figure out what personality we are supposed to switch to ... + * we can be invoked as either: + * argv[0],argv[1] == "setarch","personality" + * argv[0] == "personality" + */ + if (ENABLE_SETARCH && applet_name[0] == 's' + && argv[1] && strncpy(argv[1], "linux", 5) + ) { + applet_name = argv[1]; + argv++; + } + if (applet_name[5] == '6') /* linux64 */ + pers = PER_LINUX; + else if (applet_name[5] == '3') /* linux32 */ + pers = PER_LINUX32; + else + bb_show_usage(); + + argv++; + if (argv[0] == NULL) + bb_show_usage(); + + /* Try to set personality */ + if (personality(pers) >= 0) { + /* Try to execute the program */ + BB_EXECVP(argv[0], argv); + } + + bb_simple_perror_msg_and_die(argv[0]); +} |