From 54b6467013bfbdb3ee606961c02fbff1271ca582 Mon Sep 17 00:00:00 2001 From: Laurent Bercot Date: Fri, 19 Sep 2014 15:01:58 +0000 Subject: initial commit --- src/minutils/s6-pivotchroot.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 src/minutils/s6-pivotchroot.c (limited to 'src/minutils/s6-pivotchroot.c') diff --git a/src/minutils/s6-pivotchroot.c b/src/minutils/s6-pivotchroot.c new file mode 100644 index 0000000..ee4db73 --- /dev/null +++ b/src/minutils/s6-pivotchroot.c @@ -0,0 +1,24 @@ +/* ISC license. */ + +#ifndef _BSD_SOURCE +#define _BSD_SOURCE +#endif + +#include +#include +#include + +#define USAGE "s6-pivotchroot old-place-for-new-root new-place-for-old-root prog..." + +extern int pivot_root (char const *, char const *) ; + +int main (int argc, char const *const *argv, char const *const *envp) +{ + PROG = "s6-pivotchroot" ; + if (argc < 4) strerr_dieusage(100, USAGE) ; + if (chdir(argv[1]) < 0) strerr_diefu2sys(111, "chdir to ", argv[1]) ; + if (pivot_root(".", argv[2]) < 0) strerr_diefu1sys(111, "pivot_root") ; + if (chroot(".") < 0) strerr_diefu1sys(111, "chroot") ; + pathexec_run(argv[3], argv+3, envp) ; + strerr_dieexec(111, argv[3]) ; +} -- cgit v1.3.1