`<cpio.h>`¶

Finding files in a cpio archive (new ASCII format), as used for the initrd.

#include <cpio.h>

Structures¶

A cpio member header: 110 bytes, numbers as 8 hex digits.

Field	Type	Description
`magic`	`char`	"070701".
`ino`	`char`	Inode number.
`mode`	`char`	File mode.
`uid`	`char`	Owner.
`gid`	`char`	Group.
`nlink`	`char`	Link count.
`mtime`	`char`	Modification time.
`filesize`	`char`	Size of the file data.
`devmajor`	`char`	Major number of the device holding the file.
`devminor`	`char`	Minor number of that device.
`rdevmajor`	`char`	Major number, for device files.
`rdevminor`	`char`	Minor number, for device files.
`namesize`	`char`	Length of the name that follows, including the NUL.
`check`	`char`	Always 0.

bool CpioFind(const void *base, size_t size, const char *name, const void **data_out, size_t *size_out);

Finds a file in a CPIO archive.

Parameter	Direction	Description
`base`	in	Start of the archive in memory.
`size`	in	Size of the archive in bytes.
`name`	in	Name of the file to find.
`data_out`	out	Receives a pointer to the file's data, inside the archive.
`size_out`	out	Receives the size of the file's data.

Returns: true if the file was found, false otherwise.