-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
/***
This file is part of systemd.
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-#include <ctype.h>
+#include <errno.h>
+#include <limits.h>
+#include <stdio.h>
+#include <string.h>
#include <sys/utsname.h>
+#include <unistd.h>
//#include "fd-util.h"
#include "fileio.h"
#include "hostname-util.h"
+//#include "macro.h"
#include "string-util.h"
-#include "util.h"
-/// UNNEEDED by elogind
-#if 0
+#if 0 /// UNNEEDED by elogind
bool hostname_is_set(void) {
struct utsname u;
return true;
}
+#endif // 0
char* gethostname_malloc(void) {
struct utsname u;
+ /* This call tries to return something useful, either the actual hostname
+ * or it makes something up. The only reason it might fail is OOM.
+ * It might even return "localhost" if that's set. */
+
assert_se(uname(&u) >= 0);
if (isempty(u.nodename) || streq(u.nodename, "(none)"))
- return strdup(u.sysname);
+#if 0 /// elogind has no hostnamed and such nonsense
+ return strdup(FALLBACK_HOSTNAME);
+#else
+ return strdup("localhost");
+#endif // 0
return strdup(u.nodename);
}
+
+#if 0 /// UNNEEDED by elogind
+int gethostname_strict(char **ret) {
+ struct utsname u;
+ char *k;
+
+ /* This call will rather fail than make up a name. It will not return "localhost" either. */
+
+ assert_se(uname(&u) >= 0);
+
+ if (isempty(u.nodename))
+ return -ENXIO;
+
+ if (streq(u.nodename, "(none)"))
+ return -ENXIO;
+
+ if (is_localhost(u.nodename))
+ return -ENXIO;
+
+ k = strdup(u.nodename);
+ if (!k)
+ return -ENOMEM;
+
+ *ret = k;
+ return 0;
+}
#endif // 0
static bool hostname_valid_char(char c) {
* allow_trailing_dot is true and at least two components are present
* in the name. Note that due to the restricted charset and length
* this call is substantially more conservative than
- * dns_domain_is_valid().
+ * dns_name_is_valid().
*/
bool hostname_is_valid(const char *s, bool allow_trailing_dot) {
unsigned n_dots = 0;
return false;
dot = true;
- n_dots ++;
+ n_dots++;
} else {
if (!hostname_valid_char(*p))
return false;
return true;
}
-/// UNNEEDED by elogind
-#if 0
+#if 0 /// UNNEEDED by elogind
char* hostname_cleanup(char *s) {
char *p, *d;
bool dot;
assert(s);
+ strshorten(s, HOST_NAME_MAX);
+
for (p = s, d = s, dot = true; *p; p++) {
if (*p == '.') {
if (dot)
*(d++) = *p;
dot = false;
}
-
}
if (dot && d > s)
else
*d = 0;
- strshorten(s, HOST_NAME_MAX);
-
return s;
}
#endif // 0
assert(hostname);
/* This tries to identify local host and domain names
- * described in RFC6761 plus the redhatism of .localdomain */
+ * described in RFC6761 plus the redhatism of localdomain */
return strcaseeq(hostname, "localhost") ||
strcaseeq(hostname, "localhost.") ||
- strcaseeq(hostname, "localdomain.") ||
- strcaseeq(hostname, "localdomain") ||
+ strcaseeq(hostname, "localhost.localdomain") ||
+ strcaseeq(hostname, "localhost.localdomain.") ||
endswith_no_case(hostname, ".localhost") ||
endswith_no_case(hostname, ".localhost.") ||
- endswith_no_case(hostname, ".localdomain") ||
- endswith_no_case(hostname, ".localdomain.");
+ endswith_no_case(hostname, ".localhost.localdomain") ||
+ endswith_no_case(hostname, ".localhost.localdomain.");
}
-/// UNNEEDED by elogind
-#if 0
+#if 0 /// UNNEEDED by elogind
bool is_gateway_hostname(const char *hostname) {
assert(hostname);