dnsdomainname: split it from "hostname", make it independently selectable

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

4 files changed, 24 insertions, 11 deletions

diff --git a/include/applets.src.h b/include/applets.src.h
index 248d539c4..dbc45953c 100644
--- a/include/applets.src.h
+++ b/include/applets.src.h
@@ -112,7 +112,6 @@ IF_DHCPRELAY(APPLET(dhcprelay, BB_DIR_USR_SBIN, BB_SUID_DROP))
 IF_DIRNAME(APPLET_NOFORK(dirname, dirname, BB_DIR_USR_BIN, BB_SUID_DROP, dirname))
 IF_DMESG(APPLET(dmesg, BB_DIR_BIN, BB_SUID_DROP))
 IF_DNSD(APPLET(dnsd, BB_DIR_USR_SBIN, BB_SUID_DROP))
-IF_HOSTNAME(APPLET_ODDNAME(dnsdomainname, hostname, BB_DIR_BIN, BB_SUID_DROP, dnsdomainname))
 IF_DOS2UNIX(APPLET_NOEXEC(dos2unix, dos2unix, BB_DIR_USR_BIN, BB_SUID_DROP, dos2unix))
 IF_DU(APPLET(du, BB_DIR_USR_BIN, BB_SUID_DROP))
 IF_DUMPKMAP(APPLET(dumpkmap, BB_DIR_BIN, BB_SUID_DROP))
@@ -158,7 +157,6 @@ IF_HD(APPLET_NOEXEC(hd, hexdump, BB_DIR_USR_BIN, BB_SUID_DROP, hd))
 IF_HDPARM(APPLET(hdparm, BB_DIR_SBIN, BB_SUID_DROP))
 IF_HEAD(APPLET_NOEXEC(head, head, BB_DIR_USR_BIN, BB_SUID_DROP, head))
 IF_HEXDUMP(APPLET_NOEXEC(hexdump, hexdump, BB_DIR_USR_BIN, BB_SUID_DROP, hexdump))
-IF_HOSTNAME(APPLET(hostname, BB_DIR_BIN, BB_SUID_DROP))
 IF_HTTPD(APPLET(httpd, BB_DIR_USR_SBIN, BB_SUID_DROP))
 IF_HWCLOCK(APPLET(hwclock, BB_DIR_SBIN, BB_SUID_DROP))
 IF_IFCONFIG(APPLET(ifconfig, BB_DIR_SBIN, BB_SUID_DROP))
diff --git a/networking/Config.src b/networking/Config.src
index eb0536a7c..398a5ee25 100644
--- a/networking/Config.src
+++ b/networking/Config.src
@@ -160,12 +160,6 @@ config FEATURE_FTPGETPUT_LONG_OPTIONS
         help
           Support long options for the ftpget/ftpput applet.
 
-config HOSTNAME
-        bool "hostname"
-        default y
-        help
-          Show or set the system's host name.
-
 config HTTPD
         bool "httpd"
         default y
diff --git a/networking/Kbuild.src b/networking/Kbuild.src
index 79f54824b..e14070647 100644
--- a/networking/Kbuild.src
+++ b/networking/Kbuild.src
@@ -16,7 +16,6 @@ lib-$(CONFIG_FAKEIDENTD)   += isrv_identd.o isrv.o
 lib-$(CONFIG_FTPD)         += ftpd.o
 lib-$(CONFIG_FTPGET)       += ftpgetput.o
 lib-$(CONFIG_FTPPUT)       += ftpgetput.o
-lib-$(CONFIG_HOSTNAME)     += hostname.o
 lib-$(CONFIG_HTTPD)        += httpd.o
 lib-$(CONFIG_IFCONFIG)     += ifconfig.o interface.o
 lib-$(CONFIG_IFENSLAVE)    += ifenslave.o interface.o
diff --git a/networking/hostname.c b/networking/hostname.c
index b3e352242..04a051ede 100644
--- a/networking/hostname.c
+++ b/networking/hostname.c
@@ -10,6 +10,24 @@
  * Licensed under GPLv2 or later, see file LICENSE in this source tree.
  */
 
+//config:config HOSTNAME
+//config:       bool "hostname"
+//config:       default y
+//config:       help
+//config:         Show or set the system's host name.
+//config:
+//config:config DNSDOMAINNAME
+//config:       bool "dnsdomainname"
+//config:       default y
+//config:       help
+//config:         Alias to "hostname -d".
+
+//applet:IF_DNSDOMAINNAME(APPLET_ODDNAME(dnsdomainname, hostname, BB_DIR_BIN, BB_SUID_DROP, dnsdomainname))
+//applet:IF_HOSTNAME(APPLET(hostname, BB_DIR_BIN, BB_SUID_DROP))
+
+//kbuild: lib-$(CONFIG_HOSTNAME) += hostname.o
+//kbuild: lib-$(CONFIG_DNSDOMAINNAME) += hostname.o
+
 //usage:#define hostname_trivial_usage
 //usage:       "[OPTIONS] [HOSTNAME | -F FILE]"
 //usage:#define hostname_full_usage "\n\n"
@@ -131,8 +149,12 @@ int hostname_main(int argc UNUSED_PARAM, char **argv)
         opts = getopt32(argv, "dfisF:v", &hostname_str);
         argv += optind;
         buf = safe_gethostname();
-        if (applet_name[0] == 'd') /* dnsdomainname? */
-                opts = OPT_d;
+        if (ENABLE_DNSDOMAINNAME) {
+                if (!ENABLE_HOSTNAME || applet_name[0] == 'd') {
+                        /* dnsdomainname */
+                        opts = OPT_d;
+                }
+        }
 
         if (opts & OPT_dfi) {
                 /* Cases when we need full hostname (or its part) */