propagator/tools.h

/*
 * Guillaume Cottenceau (gc@mandrakesoft.com)
 *
 * Copyright 2000 MandrakeSoft
 *
 * This software may be freely redistributed under the terms of the GNU
 * public license.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 */

/*
 * Portions from Erik Troan (ewt@redhat.com)
 *
 * Copyright 1996 Red Hat Software
 *
 */

#ifndef _TOOLS_H_
#define _TOOLS_H_

#include <stdlib.h>

void process_cmdline(void);
int get_param(int i);
void set_param(int i);
void unset_param(int i);
int charstar_to_int(char * s);
/* Returns total memory in Kb */
unsigned long total_memory(void);
unsigned long get_ramdisk_size(const char *ramdisk_path);
int ramdisk_possible(unsigned long ramdisk_size);
char * get_ramdisk_realname(void);
enum return_type load_ramdisk(char *, unsigned long size);
enum return_type load_ramdisk_fd(int ramdisk_fd, unsigned long size);
void * memdup(void *src, size_t size);
void add_to_env(char * name, char * value);
void handle_env(char ** env);
char ** grab_env(void);
int pass_env(int);
char ** list_directory(char * direct);
int string_array_length(char ** a);
int do_losetup(char * device, char * target);
/**
 * Setup a loopback device backed by fd.
 *
 * @param device path to loopback device
 * @param fd backing file descriptor
 * @param name for pretty output from losetup, typically name of the backing file.
 * @return 0 on success, otherwise -1
 *
 * @note: should be used instead of do_losetup for anonymous files,
 * i.e. ones created by memfd_create, open(O_TMPFILE), etc
 */
int do_losetup_fd(char *device, int fd, const char *name);

char * get_ramdisk_path(const char *);
char * get_uid_file_path(const char *, const char *);
enum return_type verify_ramdisk_digest(const char *filename, const char *sha256_hash);
int splash_verbose();
int update_splash(char * state);
int prepare_progress(void);
void close_progress(void);
char * get_param_valued(char *param_name);
char * get_from_env(const char * key, const char * const * env);

struct param_elem
{
	char * name;
	char * value;
};

#define ptr_begins_static_str(pointer,static_str) (!strncmp(pointer,static_str,sizeof(static_str)-1))
#define streq !strcmp
#define MKDEV(ma,mi)    ((ma)<<8 | (mi))
#define BYTES2MB(b) ((unsigned int)((b)/1024/1024))

#endif