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Use lstat() instead of stat so /init being a symlink doesn't screw people up.
(And use it consistently, for size reasons.)
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@ -36,7 +36,7 @@ static void delete_contents(char *directory)
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struct stat st;
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// Don't descend into other filesystems
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if (stat(directory,&st) || st.st_dev != rootdev) return;
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if (lstat(directory,&st) || st.st_dev != rootdev) return;
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// Recursively delete the contents of directories.
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if (S_ISDIR(st.st_mode)) {
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@ -79,7 +79,7 @@ int switch_root_main(int argc, char *argv[])
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newroot=argv[optind++];
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if (chdir(newroot) || stat(".", &st1) || stat("/", &st2) ||
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if (chdir(newroot) || lstat(".", &st1) || lstat("/", &st2) ||
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st1.st_dev == st2.st_dev)
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{
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bb_error_msg_and_die("bad newroot %s",newroot);
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@ -90,7 +90,7 @@ int switch_root_main(int argc, char *argv[])
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// we mean it. (I could make this a CONFIG option, but I would get email
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// from all the people who WILL eat their filesystemss.)
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if (stat("/init", &st1) || !S_ISREG(st1.st_mode) || statfs("/", &stfs) ||
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if (lstat("/init", &st1) || !S_ISREG(st1.st_mode) || statfs("/", &stfs) ||
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(stfs.f_type != RAMFS_MAGIC && stfs.f_type != TMPFS_MAGIC) ||
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getpid() != 1)
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{
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