struct spwd *fgetspent (FILE * fp)
{
char buf[BUFSIZ];
char *cp;
if (NULL == fp) {
return (0);
}
#ifdef USE_NIS
while (fgets (buf, (int) sizeof buf, fp) != (char *) 0)
#else
if (fgets (buf, (int) sizeof buf, fp) != (char *) 0)
#endif
{
cp = strchr (buf, '\n');
if (NULL != cp) {
*cp = '\0';
}
#ifdef USE_NIS
if (nis_ignore && IS_NISCHAR (buf[0])) {
continue;
}
#endif
return my_sgetspent (buf);
}
return 0;
}
struct sgrp *sgetsgent (const char *string)
{
char *fields[FIELDS];
char *cp;
int i;
strncpy (sgrbuf, string, (int) sizeof sgrbuf - 1);
sgrbuf[sizeof sgrbuf - 1] = '\0';
if ((cp = strrchr (sgrbuf, '\n')))
*cp = '\0';
/*
* There should be exactly 4 colon separated fields. Find
* all 4 of them and save the starting addresses in fields[].
*/
for (cp = sgrbuf, i = 0; i < FIELDS && cp; i++) {
fields[i] = cp;
if ((cp = strchr (cp, ':')))
*cp++ = '\0';
}
/*
* If there was an extra field somehow, or perhaps not enough,
* the line is invalid.
*/
if (cp || i != FIELDS)
#ifdef USE_NIS
if (!IS_NISCHAR (fields[0][0]))
return 0;
else
nis_used = 1;
#else
return 0;
#endif
sgroup.sg_name = fields[0];
sgroup.sg_passwd = fields[1];
if (nadmins) {
nadmins = 0;
free (admins);
admins = NULL;
}
if (nmembers) {
nmembers = 0;
free (members);
members = NULL;
}
sgroup.sg_adm = list (fields[2], &admins, &nadmins);
sgroup.sg_mem = list (fields[3], &members, &nmembers);
return &sgroup;
}
struct sgrp *fgetsgent (FILE * fp)
{
char buf[sizeof sgrbuf];
char *cp;
if (!fp)
return (0);
#ifdef USE_NIS
while (fgetsx (buf, sizeof buf, fp) != (char *) 0)
#else
if (fgetsx (buf, sizeof buf, fp) != (char *) 0)
#endif
{
if ((cp = strchr (buf, '\n')))
*cp = '\0';
#ifdef USE_NIS
if (nis_ignore && IS_NISCHAR (buf[0]))
continue;
#endif
return (sgetsgent (buf));
}
return 0;
}
struct spwd *getspent (void)
{
#ifdef USE_NIS
int nis_1_user = 0;
struct spwd *val;
char buf[BUFSIZ];
#endif
if (NULL == shadow) {
setspent ();
}
#ifdef USE_NIS
again:
/*
* See if we are reading from the local file.
*/
if (nis_state == native || nis_state == native2) {
/*
* Get the next entry from the shadow file. Return NULL
* right away if there is none.
*/
val = fgetspent (shadow);
if (NULL == val)
return 0;
/*
* If this entry began with a NIS escape character, we have
* to see if this is just a single user, or if the entire
* map is being asked for.
*/
if (IS_NISCHAR (val->sp_namp[0])) {
if (val->sp_namp[1])
nis_1_user = 1;
else
nis_state = start;
}
/*
* If this isn't a NIS user and this isn't an escape to go
* use a NIS map, it must be a regular local user.
*/
if (nis_1_user == 0 && nis_state != start)
return val;
/*
* If this is an escape to use an NIS map, switch over to
* that bunch of code.
*/
if (nis_state == start)
goto again;
/*
* NEEDSWORK. Here we substitute pieces-parts of this entry.
*/
return 0;
} else {
if (!nis_bound) {
if (bind_nis ()) {
nis_state = native2;
goto again;
}
}
if (nis_state == start) {
if (yp_first (nis_domain, "shadow.bynam", &nis_key,
&nis_keylen, &nis_val, &nis_vallen)) {
nis_state = native2;
goto again;
}
nis_state = middle;
} else if (nis_state == middle) {
if (yp_next (nis_domain, "shadow.bynam", nis_key,
nis_keylen, &nis_key, &nis_keylen,
&nis_val, &nis_vallen)) {
nis_state = native2;
goto again;
}
}
return my_sgetspent (nis_val);
}
#else
return (fgetspent (shadow));
#endif
}
static struct spwd *my_sgetspent (const char *string)
{
static char spwbuf[BUFSIZ];
static struct spwd spwd;
char *fields[FIELDS];
char *cp;
char *cpp;
int i;
/*
* Copy string to local buffer. It has to be tokenized and we
* have to do that to our private copy.
*/
if (strlen (string) >= sizeof spwbuf)
return 0;
strcpy (spwbuf, string);
cp = strrchr (spwbuf, '\n');
if (NULL != cp)
*cp = '\0';
/*
* Tokenize the string into colon separated fields. Allow up to
* FIELDS different fields.
*/
for (cp = spwbuf, i = 0; *cp && i < FIELDS; i++) {
fields[i] = cp;
while (*cp && *cp != ':')
cp++;
if (*cp)
*cp++ = '\0';
}
if (i == (FIELDS - 1))
fields[i++] = cp;
if ((cp && *cp) || (i != FIELDS && i != OFIELDS))
return 0;
/*
* Start populating the structure. The fields are all in
* static storage, as is the structure we pass back. If we
* ever see a name with '+' as the first character, we try
* to turn on NIS processing.
*/
spwd.sp_namp = fields[0];
#ifdef USE_NIS
if (IS_NISCHAR (fields[0][0])) {
nis_used = true;
}
#endif
spwd.sp_pwdp = fields[1];
/*
* Get the last changed date. For all of the integer fields,
* we check for proper format. It is an error to have an
* incorrectly formatted number, unless we are using NIS.
*/
if (fields[2][0] == '\0') {
spwd.sp_lstchg = -1;
} else {
if (getlong (fields[2], &spwd.sp_lstchg) == 0) {
#ifdef USE_NIS
if (nis_used) {
spwd.sp_lstchg = -1;
} else
#endif
return 0;
} else if (spwd.sp_lstchg < 0) {
return 0;
}
}
/*
* Get the minimum period between password changes.
*/
if (fields[3][0] == '\0') {
spwd.sp_min = -1;
} else {
if (getlong (fields[3], &spwd.sp_min) == 0) {
#ifdef USE_NIS
if (nis_used) {
spwd.sp_min = -1;
} else
#endif
{
return 0;
}
} else if (spwd.sp_min < 0) {
return 0;
}
}
/*
* Get the maximum number of days a password is valid.
*/
if (fields[4][0] == '\0') {
spwd.sp_max = -1;
} else {
if (getlong (fields[4], &spwd.sp_max) == 0) {
#ifdef USE_NIS
if (nis_used) {
spwd.sp_max = -1;
} else
#endif
return 0;
} else if (spwd.sp_max < 0) {
return 0;
}
}
/*
* If there are only OFIELDS fields (this is a SVR3.2 /etc/shadow
* formatted file), initialize the other field members to -1.
*/
if (i == OFIELDS) {
spwd.sp_warn = -1;
spwd.sp_inact = -1;
spwd.sp_expire = -1;
spwd.sp_flag = SHADOW_SP_FLAG_UNSET;
return &spwd;
}
/*
* Get the number of days of password expiry warning.
*/
if (fields[5][0] == '\0') {
spwd.sp_warn = -1;
} else {
if (getlong (fields[5], &spwd.sp_warn) == 0) {
#ifdef USE_NIS
if (nis_used) {
spwd.sp_warn = -1;
} else
#endif
{
return 0;
}
} else if (spwd.sp_warn < 0) {
return 0;
}
}
/*
* Get the number of days of inactivity before an account is
* disabled.
*/
if (fields[6][0] == '\0') {
spwd.sp_inact = -1;
} else {
if (getlong (fields[6], &spwd.sp_inact) == 0) {
#ifdef USE_NIS
if (nis_used) {
spwd.sp_inact = -1;
} else
#endif
{
return 0;
}
} else if (spwd.sp_inact < 0) {
return 0;
}
}
/*
* Get the number of days after the epoch before the account is
* set to expire.
*/
if (fields[7][0] == '\0') {
spwd.sp_expire = -1;
} else {
if (getlong (fields[7], &spwd.sp_expire) == 0) {
#ifdef USE_NIS
if (nis_used) {
spwd.sp_expire = -1;
} else
#endif
{
return 0;
}
} else if (spwd.sp_expire < 0) {
return 0;
}
}
/*
* This field is reserved for future use. But it isn't supposed
* to have anything other than a valid integer in it.
*/
if (fields[8][0] == '\0') {
spwd.sp_flag = SHADOW_SP_FLAG_UNSET;
} else {
if (getlong (fields[8], &spwd.sp_flag) == 0) {
/* FIXME: add a getulong function */
#ifdef USE_NIS
if (nis_used) {
spwd.sp_flag = SHADOW_SP_FLAG_UNSET;
} else
#endif
{
return 0;
}
} else if (spwd.sp_flag < 0) {
return 0;
}
}
return (&spwd);
}