added unshare_umount example
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15
examples/unshare_umount.c
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15
examples/unshare_umount.c
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#define _GNU_SOURCE
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#include <sched.h>
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#include <sys/mount.h>
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#include <sys/types.h>
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#include <dirent.h>
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#include <stdio.h>
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int main() {
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if (unshare(CLONE_NEWNS))
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perror("unshare");
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if (mount("none", "/", NULL, MS_REC|MS_PRIVATE, NULL))
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perror("mount");
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if (umount("/"))
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perror("umount");
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}
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