static int
pw_update(struct passwd * pwd, char const * user)
{
int rc = 0;
rc = pwdb("-C", (char *)NULL); /* Check only */
if (rc == 0) {
int pfd, tfd;
struct passwd *pw = NULL;
struct passwd *old_pw = NULL;
if (pwd != NULL)
pw = pw_dup(pwd);
if (user != NULL)
old_pw = GETPWNAM(user);
if (pw_init(pwpath, NULL))
err(1, "pw_init()");
if ((pfd = pw_lock()) == -1) {
pw_fini();
err(1, "pw_lock()");
}
if ((tfd = pw_tmp(-1)) == -1) {
pw_fini();
err(1, "pw_tmp()");
}
if (pw_copy(pfd, tfd, pw, old_pw) == -1) {
pw_fini();
err(1, "pw_copy()");
}
/*
* in case of deletion of a user, the whole database
* needs to be regenerated
*/
if (pw_mkdb(pw != NULL ? pw->pw_name : NULL) == -1) {
pw_fini();
err(1, "pw_mkdb()");
}
free(pw);
pw_fini();
}
return 0;
}
static int
pw_update(struct passwd * pwd, char const * user)
{
int rc = 0;
/*
* First, let's check the see if the database is alright
* Note: -C is only available in FreeBSD 2.2 and above
*/
#ifdef HAVE_PWDB_C
rc = pwdb("-C", (char *)NULL); /* Check only */
if (rc == 0) {
#else
{ /* No -C */
#endif
int pfd, tfd;
struct passwd *pw = NULL;
struct passwd *old_pw = NULL;
if (pwd != NULL)
pw = pw_dup(pwd);
if (user != NULL)
old_pw = GETPWNAM(user);
if (pw_init(pwpath, NULL))
err(1, "pw_init()");
if ((pfd = pw_lock()) == -1) {
pw_fini();
err(1, "pw_lock()");
}
if ((tfd = pw_tmp(-1)) == -1) {
pw_fini();
err(1, "pw_tmp()");
}
if (pw_copy(pfd, tfd, pw, old_pw) == -1) {
pw_fini();
err(1, "pw_copy()");
}
if (pw_mkdb(user) == -1) {
pw_fini();
err(1, "pw_mkdb()");
}
free(pw);
pw_fini();
}
return 0;
}
int
addpwent(struct passwd * pwd)
{
return pw_update(pwd, NULL);
}
int
chgpwent(char const * login, struct passwd * pwd)
{
return pw_update(pwd, login);
}
int
delpwent(struct passwd * pwd)
{
char login[MAXLOGNAME];
strlcpy(login, pwd->pw_name, MAXLOGNAME);
return pw_update(NULL, login);
}