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libutil: Introduce util_udev

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Move code to read udev files from zdev into a utility library for use by
other tools.

Acked-by: Jan Höppner <hoeppner@linux.ibm.com>
Reviewed-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Reviewed-by: Tony Krowiak <akrowiak@linux.ibm.com>
Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
This commit is contained in:
Matthew Rosato
2021-09-15 11:51:56 -04:00
committed by Jan Höppner
parent f64b4087dd
commit 6f7982dae5
7 changed files with 443 additions and 376 deletions
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include/lib/util_udev.h
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/*
* @defgroup util_udev_h util_udev: UDEV interface
* @{
* @brief Work with UDEV files
*
* Copyright IBM Corp. 2022
*
* s390-tools is free software; you can redistribute it and/or modify
* it under the terms of the MIT license. See LICENSE for details.
*/
#ifndef LIB_UTIL_UDEV_H
#define LIB_UTIL_UDEV_H
#include <stdbool.h>
#include "lib/util_exit_code.h"
#include "lib/util_list.h"
/* Single key-operator-value entry in a udev rule line.*/
struct util_udev_entry_node {
struct util_list_node node;
char *key;
char *op;
char *value;
};
/* Single udev line in a udev rule file. */
struct util_udev_line_node {
struct util_list_node node;
struct util_list entries;
char *line;
};
/* Udev rule file. */
struct util_udev_file {
struct util_list lines;
};
util_exit_code_t util_udev_read_file(const char *path,
struct util_udev_file **file_ptr);
void util_udev_free_file(struct util_udev_file *file);
void util_udev_file_print(struct util_udev_file *file);
#endif /** LIB_UTIL_UDEV_H @} */