This file is indexed.

/usr/include/linux/utsname.h is in linux-libc-dev 4.9.144-3.1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

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#ifndef _LINUX_UTSNAME_H
#define _LINUX_UTSNAME_H

#define __OLD_UTS_LEN 8

struct oldold_utsname {
	char sysname[9];
	char nodename[9];
	char release[9];
	char version[9];
	char machine[9];
};

#define __NEW_UTS_LEN 64

struct old_utsname {
	char sysname[65];
	char nodename[65];
	char release[65];
	char version[65];
	char machine[65];
};

struct new_utsname {
	char sysname[__NEW_UTS_LEN + 1];
	char nodename[__NEW_UTS_LEN + 1];
	char release[__NEW_UTS_LEN + 1];
	char version[__NEW_UTS_LEN + 1];
	char machine[__NEW_UTS_LEN + 1];
	char domainname[__NEW_UTS_LEN + 1];
};


#endif /* _LINUX_UTSNAME_H */