internal_function
nss_parse_service_list (const char *line)
{
service_user *result = NULL, **nextp = &result;
while (1)
{
service_user *new_service;
const char *name;
while (isspace (line[0]))
++line;
if (line[0] == '\0')
/* No source specified. */
return result;
/* Read <source> identifier. */
name = line;
while (line[0] != '\0' && !isspace (line[0]) && line[0] != '[')
++line;
if (name == line)
return result;
new_service = (service_user *) malloc (sizeof (service_user)
+ (line - name + 1));
if (new_service == NULL)
return result;
*((char *) __mempcpy (new_service->name, name, line - name)) = '\0';
/* Set default actions. */
new_service->actions[2 + NSS_STATUS_TRYAGAIN] = NSS_ACTION_CONTINUE;
new_service->actions[2 + NSS_STATUS_UNAVAIL] = NSS_ACTION_CONTINUE;
new_service->actions[2 + NSS_STATUS_NOTFOUND] = NSS_ACTION_CONTINUE;
new_service->actions[2 + NSS_STATUS_SUCCESS] = NSS_ACTION_RETURN;
new_service->actions[2 + NSS_STATUS_RETURN] = NSS_ACTION_RETURN;
new_service->library = NULL;
new_service->known = NULL;
new_service->next = NULL;
while (isspace (line[0]))
++line;
if (line[0] == '[')
{
/* Read criterions. */
do
++line;
while (line[0] != '\0' && isspace (line[0]));
do
{
int not;
enum nss_status status;
lookup_actions action;
/* Grok ! before name to mean all statii but that one. */
not = line[0] == '!';
if (not)
++line;
/* Read status name. */
name = line;
while (line[0] != '\0' && !isspace (line[0]) && line[0] != '='
&& line[0] != ']')
++line;
/* Compare with known statii. */
if (line - name == 7)
{
if (__strncasecmp (name, "SUCCESS", 7) == 0)
status = NSS_STATUS_SUCCESS;
else if (__strncasecmp (name, "UNAVAIL", 7) == 0)
status = NSS_STATUS_UNAVAIL;
else
return result;
}
else if (line - name == 8)
{
if (__strncasecmp (name, "NOTFOUND", 8) == 0)
status = NSS_STATUS_NOTFOUND;
else if (__strncasecmp (name, "TRYAGAIN", 8) == 0)
status = NSS_STATUS_TRYAGAIN;
else
return result;
}
else
return result;
while (isspace (line[0]))
++line;
if (line[0] != '=')
return result;
do
++line;
while (isspace (line[0]));
name = line;
while (line[0] != '\0' && !isspace (line[0]) && line[0] != '='
&& line[0] != ']')
++line;
if (line - name == 6 && __strncasecmp (name, "RETURN", 6) == 0)
action = NSS_ACTION_RETURN;
else if (line - name == 8
&& __strncasecmp (name, "CONTINUE", 8) == 0)
action = NSS_ACTION_CONTINUE;
else
return result;
if (not)
{
/* Save the current action setting for this status,
set them all to the given action, and reset this one. */
const lookup_actions save = new_service->actions[2 + status];
new_service->actions[2 + NSS_STATUS_TRYAGAIN] = action;
new_service->actions[2 + NSS_STATUS_UNAVAIL] = action;
new_service->actions[2 + NSS_STATUS_NOTFOUND] = action;
new_service->actions[2 + NSS_STATUS_SUCCESS] = action;
new_service->actions[2 + status] = save;
}
else
new_service->actions[2 + status] = action;
/* Skip white spaces. */
while (isspace (line[0]))
++line;
}
while (line[0] != ']');
/* Skip the ']'. */
++line;
}
*nextp = new_service;
nextp = &new_service->next;
}
}
int
ruserpass (const char *host, const char **aname, const char **apass)
{
char *hdir, *buf, *tmp;
char myname[1024], *mydomain;
int t, usedefault = 0;
struct stat64 stb;
hdir = __libc_secure_getenv("HOME");
if (hdir == NULL) {
/* If we can't get HOME, fail instead of trying ".",
which is no improvement. This really should call
getpwuid(getuid()). */
/*hdir = ".";*/
return -1;
}
buf = alloca (strlen (hdir) + 8);
__stpcpy (__stpcpy (buf, hdir), "/.netrc");
cfile = fopen(buf, "rce");
if (cfile == NULL) {
if (errno != ENOENT)
warn("%s", buf);
return (0);
}
/* No threads use this stream. */
__fsetlocking (cfile, FSETLOCKING_BYCALLER);
if (__gethostname(myname, sizeof(myname)) < 0)
myname[0] = '\0';
mydomain = __strchrnul(myname, '.');
next:
while ((t = token())) switch(t) {
case DEFAULT:
usedefault = 1;
/* FALL THROUGH */
case MACHINE:
if (!usedefault) {
if (token() != ID)
continue;
/*
* Allow match either for user's input host name
* or official hostname. Also allow match of
* incompletely-specified host in local domain.
*/
if (__strcasecmp(host, tokval) == 0)
goto match;
/* if (__strcasecmp(hostname, tokval) == 0)
goto match;
if ((tmp = strchr(hostname, '.')) != NULL &&
__strcasecmp(tmp, mydomain) == 0 &&
__strncasecmp(hostname, tokval, tmp-hostname) == 0 &&
tokval[tmp - hostname] == '\0')
goto match; */
if ((tmp = strchr(host, '.')) != NULL &&
__strcasecmp(tmp, mydomain) == 0 &&
__strncasecmp(host, tokval, tmp - host) == 0 &&
tokval[tmp - host] == '\0')
goto match;
continue;
}
match:
while ((t = token()) && t != MACHINE && t != DEFAULT) switch(t) {
case LOGIN:
if (token()) {
if (*aname == 0) {
char *newp;
newp = malloc((unsigned) strlen(tokval) + 1);
if (newp == NULL)
{
warnx(_("out of memory"));
goto bad;
}
*aname = strcpy(newp, tokval);
} else {
if (strcmp(*aname, tokval))
goto next;
}
}
break;
case PASSWD:
if (strcmp(*aname, "anonymous") &&
fstat64(fileno(cfile), &stb) >= 0 &&
(stb.st_mode & 077) != 0) {
warnx(_("Error: .netrc file is readable by others."));
warnx(_("Remove password or make file unreadable by others."));
goto bad;
}
if (token() && *apass == 0) {
char *newp;
newp = malloc((unsigned) strlen(tokval) + 1);
if (newp == NULL)
{
warnx(_("out of memory"));
goto bad;
}
*apass = strcpy(newp, tokval);
}
break;
case ACCOUNT:
break;
case MACDEF:
break;
default:
warnx(_("Unknown .netrc keyword %s"), tokval);
break;
}
goto done;
}
done:
(void) fclose(cfile);
return (0);
bad:
(void) fclose(cfile);
return (-1);
}
