int queue_de(int *data)
{
if (__isempty()) {
return -1;
}
*data = queue[de_ind++];
if (de_ind == QUEUE_NUM) {
de_ind = 0;
}
return 0;
}
/*
* Returns 0 if positive match, -1 if _not_ ok.
*/
static int
__ivaliduser2(FILE *hostf, u_int32_t raddr, const char *luser,
const char *ruser, const char *rhost)
{
register const char *user;
register char *p;
int hcheck, ucheck;
char *buf = NULL;
size_t bufsize = 0;
int retval = -1;
while (getline (&buf, &bufsize, hostf) > 0) {
buf[bufsize - 1] = '\0'; /* Make sure it's terminated. */
p = buf;
/* Skip empty or comment lines */
if (__isempty (p)) {
continue;
}
/* Skip lines that are too long. */
if (strchr (p, '\n') == NULL) {
int ch = getc_unlocked (hostf);
while (ch != '\n' && ch != EOF)
ch = getc_unlocked (hostf);
continue;
}
for (; *p && !isspace(*p); ++p) {
*p = tolower (*p);
}
/* Next we want to find the permitted name for the remote user. */
if (*p == ' ' || *p == '\t') {
/* <nul> terminate hostname and skip spaces */
for (*p++='\0'; *p && isspace (*p); ++p);
user = p; /* this is the user's name */
while (*p && !isspace (*p))
++p; /* find end of user's name */
} else
user = p;
*p = '\0'; /* <nul> terminate username (+host?) */
/* buf -> host(?) ; user -> username(?) */
/* First check host part */
hcheck = __icheckhost (raddr, buf, rhost);
if (hcheck < 0)
break;
if (hcheck) {
/* Then check user part */
if (! (*user))
user = luser;
ucheck = __icheckuser (user, ruser);
/* Positive 'host user' match? */
if (ucheck > 0) {
retval = 0;
break;
}
/* Negative 'host -user' match? */
if (ucheck < 0)
break;
/* Neither, go on looking for match */
}
}
free (buf);
return retval;
}
static int
__ivaliduser (pam_handle_t *pamh, struct _options *opts,
FILE *hostf, U32 raddr,
const char *luser, const char *ruser, const char *rhost)
{
register const char *user;
register char *p;
int hcheck, ucheck;
char buf[MAXHOSTNAMELEN + 128]; /* host + login */
buf[sizeof (buf)-1] = '\0'; /* terminate line */
while (fgets(buf, sizeof(buf), hostf) != NULL) { /* hostf file line */
p = buf; /* from beginning of file.. */
/* Skip empty or comment lines */
if (__isempty(p)) {
continue;
}
/* Skip lines that are too long. */
if (strchr(p, '\n') == NULL) {
int ch = getc(hostf);
while (ch != '\n' && ch != EOF)
ch = getc(hostf);
continue;
}
/*
* If there is a hostname at the start of the line. Set it to
* lower case. A leading ' ' or '\t' indicates no hostname
*/
for (;*p && !isspace(*p); ++p) {
*p = tolower(*p);
}
/*
* next we want to find the permitted name for the remote user
*/
if (*p == ' ' || *p == '\t') {
/* <nul> terminate hostname and skip spaces */
for (*p++='\0'; *p && isspace(*p); ++p);
user = p; /* this is the user's name */
while (*p && !isspace(*p))
++p; /* find end of user's name */
} else
user = p;
*p = '\0'; /* <nul> terminate username (+host?) */
/* buf -> host(?) ; user -> username(?) */
/* First check host part */
hcheck=__icheckhost(pamh, opts, raddr, buf, rhost);
if (hcheck<0)
return(1);
if (hcheck) {
/* Then check user part */
if (! (*user))
user = luser;
ucheck=__icheckuser(pamh, opts, user, ruser, rhost);
/* Positive 'host user' match? */
if (ucheck>0)
return(0);
/* Negative 'host -user' match? */
if (ucheck<0)
return(1);
/* Neither, go on looking for match */
}
}
return (1);
}