shadow/lib/shadowio.c

#include <config.h>

#ifdef SHADOWPWD

#include "rcsid.h"
RCSID("$Id: shadowio.c,v 1.13 2001/08/14 21:10:36 malekith Exp $")

#include "prototypes.h"
#include "defines.h"
#ifdef HAVE_SHADOW_H
# include <shadow.h>
#endif
#include <stdio.h>

#include "commonio.h"
#include "shadowio.h"

struct spwd *
__spw_dup(const struct spwd *spent)
{
	struct spwd *sp;

	if (!(sp = (struct spwd *) malloc(sizeof *sp)))
		return NULL;
	*sp = *spent;
	if (!(sp->sp_namp = strdup(spent->sp_namp)))
		return NULL;
	if (!(sp->sp_pwdp = strdup(spent->sp_pwdp)))
		return NULL;
	return sp;
}

static void *
shadow_dup(const void *ent)
{
	const struct spwd *sp = ent;
	return __spw_dup(sp);
}

static void
shadow_free(void *ent)
{
	struct spwd *sp = ent;

	free(sp->sp_namp);
	free(sp->sp_pwdp);
	free(sp);
}

static const char *
shadow_getname(const void *ent)
{
	const struct spwd *sp = ent;
	return sp->sp_namp;
}

static void *
shadow_parse(const char *line)
{
	return (void *) sgetspent(line);
}

static int
shadow_put(const void *ent, FILE *file)
{
	const struct spwd *sp = ent;
	return (putspent(sp, file) == -1) ? -1 : 0;
}

static struct commonio_ops shadow_ops = {
	shadow_dup,
	shadow_free,
	shadow_getname,
	shadow_parse,
	shadow_put,
	fgets,
	fputs
};

static struct commonio_db shadow_db = {
	SHADOW_FILE,	/* filename */
	&shadow_ops,	/* ops */
	NULL,		/* fp */
	NULL,		/* head */
	NULL,		/* tail */
	NULL,		/* cursor */
	0,		/* changed */
	0,		/* isopen */
	0,		/* locked */
	0		/* readonly */
};

int
spw_name(const char *filename)
{
	return commonio_setname(&shadow_db, filename);
}

int
spw_file_present(void)
{
	return commonio_present(&shadow_db);
}

int
spw_lock(void)
{
	return commonio_lock(&shadow_db);
}

int
spw_open(int mode)
{
	return commonio_open(&shadow_db, mode);
}

const struct spwd *
spw_locate(const char *name)
{
	return commonio_locate(&shadow_db, name);
}

int
spw_update(const struct spwd *sp)
{
	return commonio_update(&shadow_db, (const void *) sp);
}

int
spw_remove(const char *name)
{
	return commonio_remove(&shadow_db, name);
}

int
spw_rewind(void)
{
	return commonio_rewind(&shadow_db);
}

const struct spwd *
spw_next(void)
{
	return commonio_next(&shadow_db);
}

int
spw_close(void)
{
	return commonio_close(&shadow_db);
}

int
spw_unlock(void)
{
	return commonio_unlock(&shadow_db);
}

struct commonio_entry *
__spw_get_head(void)
{
	return shadow_db.head;
}

void
__spw_del_entry(const struct commonio_entry *ent)
{
	commonio_del_entry(&shadow_db, ent);
}

/* Sort with respect to passwd ordering. */
int
spw_sort()
{
	extern struct commonio_db *__pw_get_db();

	return commonio_sort_wrt(&shadow_db, __pw_get_db());
}
#endif