102 lines
2.4 KiB
C
102 lines
2.4 KiB
C
|
/* $Id: commonio.h,v 1.4 1998/01/29 23:22:27 marekm Exp $ */
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Linked list entry.
|
||
|
|
*/
|
||
|
|
struct commonio_entry {
|
||
|
|
char *line;
|
||
|
|
void *entry; /* struct passwd, struct spwd, ... */
|
||
|
|
struct commonio_entry *prev, *next;
|
||
|
|
int changed:1;
|
||
|
|
};
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Operations depending on database type: passwd, group, shadow etc.
|
||
|
|
*/
|
||
|
|
struct commonio_ops {
|
||
|
|
/*
|
||
|
|
* Make a copy of the object (for example, struct passwd)
|
||
|
|
* and all strings pointed by it, in malloced memory.
|
||
|
|
*/
|
||
|
|
void * (*dup) P_((const void *));
|
||
|
|
|
||
|
|
/*
|
||
|
|
* free() the object including any strings pointed by it.
|
||
|
|
*/
|
||
|
|
void (*free) P_((void *));
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Return the name of the object (for example, pw_name
|
||
|
|
* for struct passwd).
|
||
|
|
*/
|
||
|
|
const char * (*getname) P_((const void *));
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Parse a string, return object (in static area -
|
||
|
|
* should be copied using the dup operation above).
|
||
|
|
*/
|
||
|
|
void * (*parse) P_((const char *));
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Write the object to the file (this calls putpwent()
|
||
|
|
* for struct passwd, for example).
|
||
|
|
*/
|
||
|
|
int (*put) P_((const void *, FILE *));
|
||
|
|
|
||
|
|
/*
|
||
|
|
* fgets and fputs (can be replaced by versions that
|
||
|
|
* understand line continuation conventions).
|
||
|
|
*/
|
||
|
|
char * (*fgets) P_((char *, int, FILE *));
|
||
|
|
int (*fputs) P_((const char *, FILE *));
|
||
|
|
};
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Database structure.
|
||
|
|
*/
|
||
|
|
struct commonio_db {
|
||
|
|
/*
|
||
|
|
* Name of the data file.
|
||
|
|
*/
|
||
|
|
char filename[1024];
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Operations from above.
|
||
|
|
*/
|
||
|
|
struct commonio_ops *ops;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Currently open file stream.
|
||
|
|
*/
|
||
|
|
FILE *fp;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Head, tail, current position in linked list.
|
||
|
|
*/
|
||
|
|
struct commonio_entry *head, *tail, *cursor;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Various flags.
|
||
|
|
*/
|
||
|
|
int changed:1;
|
||
|
|
int isopen:1;
|
||
|
|
int locked:1;
|
||
|
|
int readonly:1;
|
||
|
|
int use_lckpwdf:1;
|
||
|
|
};
|
||
|
|
|
||
|
|
extern int commonio_setname P_((struct commonio_db *, const char *));
|
||
|
|
extern int commonio_present P_((const struct commonio_db *));
|
||
|
|
extern int commonio_lock P_((struct commonio_db *));
|
||
|
|
extern int commonio_lock_nowait P_((struct commonio_db *));
|
||
|
|
extern int commonio_open P_((struct commonio_db *, int));
|
||
|
|
extern const void *commonio_locate P_((struct commonio_db *, const char *));
|
||
|
|
extern int commonio_update P_((struct commonio_db *, const void *));
|
||
|
|
extern int commonio_remove P_((struct commonio_db *, const char *));
|
||
|
|
extern int commonio_rewind P_((struct commonio_db *));
|
||
|
|
extern const void *commonio_next P_((struct commonio_db *));
|
||
|
|
extern int commonio_close P_((struct commonio_db *));
|
||
|
|
extern int commonio_unlock P_((struct commonio_db *));
|
||
|
|
extern void commonio_del_entry P_((struct commonio_db *, const struct commonio_entry *));
|
||
|
|
|