libexplain/buffer/device_name.c File Reference

#include <libexplain/ac/dirent.h>
#include <libexplain/ac/limits.h>
#include <libexplain/ac/sys/param.h>
#include <libexplain/buffer/device_name.h>
#include <libexplain/buffer/pointer.h>
#include <libexplain/is_efault.h>

Go to the source code of this file.

Functions
static int	dev_stat_rec (explain_string_buffer_t *dev_path, dev_t dev, struct stat *st, explain_string_buffer_t *shortest_dev_path)
int	explain_buffer_device_name (explain_string_buffer_t *sb, dev_t dev, struct stat *st)

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Function Documentation

static int dev_stat_rec	(	explain_string_buffer_t *	dev_path,
		dev_t	dev,
		struct stat *	st,
		explain_string_buffer_t *	shortest_dev_path
	)		[static]

The dev_stat_rec function is used to walk the /dev directory tree, looking for a specific device.

Parameters:

dev_path	The is the path recursively constructed as we descend down the directory tree looking for devices.
dev	The device beeing searched for.
st	The details of the device found (output).
shortest_dev_path	The path of the device found. If nore than one is found, the shortest device_path is remembered.

Returns:

0 on success (shortest_dev_path has been set), -1 if the device is not found.

Definition at line 47 of file device_name.c.

int explain_buffer_device_name	(	explain_string_buffer_t *	sb,
		dev_t	dev,
		struct stat *	st
	)

The explain_buffer_device_name function may be used locate a device's name an print it into the supplied buffer.

Parameters:

sb	The string buffer to print into.
dev	The device to look for.
st	The file info that provoked the request.

Returns:

0 on success, -1 on error

Definition at line 130 of file device_name.c.