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/*
*
* Headerfile of quota interactions with system - filenames, fstab...
*
*/
#ifndef _QUOTASYS_H
#define _QUOTASYS_H
#include <sys/types.h>
#include "mntopt.h"
#include "quota.h"
#define MAXNAMELEN 64 /* Maximal length of user/group name */
#define MAXTIMELEN 40 /* Maximal length of time string */
#define MAXNUMLEN 32 /* Maximal length of number */
#define MAXMNTPOINTS 128 /* Maximal number of mountpoints with quota */
/* Flags for formatting time */
#define TF_ROUND 0x1 /* Should be printed time rounded? */
/* Flags for IO initialization */
#define IOI_LOCALONLY 0x1 /* Operate only on local quota */
#define IOI_READONLY 0x2 /* Only readonly access */
#define IOI_OPENFILE 0x4 /* Open file even if kernel has quotas turned on */
#define QSTAT_FILE "/proc/fs/quota" /* File with quotastats */
#define KERN_KNOWN_QUOTA_VERSION (6*10000 + 5*100 + 1)
/* Interface versions */
#define IFACE_VFSOLD 1
#define IFACE_VFSV0 2
#define IFACE_GENERIC 3
/* Kernel quota format and supported interface */
extern int kernel_formats, kernel_iface;
/*
* Exported functions
*/
/* Convert quota type to written form */
char *type2name(int);
/* Convert username to uid */
uid_t user2uid(char *);
/* Convert groupname to gid */
gid_t group2gid(char *);
/* Convert user/groupname to id */
int name2id(char *name, int qtype);
/* Convert uid to username */
int uid2user(uid_t, char *);
/* Convert gid to groupname */
int gid2group(gid_t, char *);
/* Convert id to user/group name */
int id2name(int id, int qtype, char *buf);
/* Convert quota format name to number */
int name2fmt(char *str);
/* Convert quota format number to name */
char *fmt2name(int fmt);
/* Convert kernel to utility format numbers */
int kern2utilfmt(int fmt);
/* Convert utility to kernel format numbers */
int util2kernfmt(int fmt);
/* Convert time difference between given time and current time to printable form */
void difftime2str(time_t, char *);
/* Convert time to printable form */
void time2str(time_t, char *, int);
/* Convert number in quota blocks to short printable form */
void space2str(qsize_t, char *, int);
/* Convert number to short printable form */
void number2str(unsigned long long, char *, int);
/* Check to see if particular quota is to be enabled */
int hasquota(struct mntent *mnt, int type);
/* Flags for get_qf_name() */
#define NF_EXIST 1 /* Check whether file exists */
#define NF_FORMAT 2 /* Check whether file is in proper format */
/* Get quotafile name for given entry */
int get_qf_name(struct mntent *mnt, int type, int fmt, int flags, char **filename);
/* Detect newest quota format with existing file */
int detect_quota_files(struct mntent *mnt, int type, int fmt);
/* Create NULL-terminated list of handles for quotafiles for given mountpoints */
struct quota_handle **create_handle_list(int count, char **mntpoints, int type, int fmt,
int flags);
/* Dispose given list of handles */
int dispose_handle_list(struct quota_handle **hlist);
/* Check whether given device name matches quota handle device */
int devcmp_handle(const char *dev, struct quota_handle *h);
/* Check whether two quota handles have same device */
int devcmp_handles(struct quota_handle *a, struct quota_handle *b);
/* Check kernel supported quotafile format */
void init_kernel_interface(void);
/* Check whether is quota turned on on given device for given type */
int kern_quota_on(const char *dev, int type, int fmt);
/* Initialize mountpoints scan */
int init_mounts_scan(int dcnt, char **dirs);
/* Flags for get_next_mount() */
#define MS_NO_MNTPOINT 0x01 /* Specified directory needn't be mountpoint */
/* Return next mountpoint for scan */
struct mntent *get_next_mount(int flags);
/* Free all structures associated with mountpoints scan */
void end_mounts_scan(void);
#endif /* _QUOTASYS_H */
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