Move create_icmp[6]_socket to its only user, and simplify it

function                                             old     new   delta
run_applet_and_exit                                  711     714      +3
sendping_tail                                        239     236      -3
common_ping_main                                    1798    1770     -28
create_icmp_socket                                    65       -     -65
create_icmp6_socket                                   65       -     -65
------------------------------------------------------------------------------
(add/remove: 0/4 grow/shrink: 1/2 up/down: 3/-161)           Total: -158 bytes

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

3 files changed, 0 insertions, 76 deletions

diff --git a/libbb/Kbuild.src b/libbb/Kbuild.src
index 61eec26..c5d86c0 100644
--- a/libbb/Kbuild.src
+++ b/libbb/Kbuild.src
@@ -27,8 +27,6 @@ lib-y += concat_subpath_file.o
 lib-y += copy_file.o
 lib-y += copyfd.o
 lib-y += crc32.o
-lib-y += create_icmp6_socket.o
-lib-y += create_icmp_socket.o
 lib-y += default_error_retval.o
 lib-y += device_open.o
 lib-y += dump.o
diff --git a/libbb/create_icmp6_socket.c b/libbb/create_icmp6_socket.c
deleted file mode 100644
index 368c690..0000000
--- a/libbb/create_icmp6_socket.c
+++ /dev/null
@@ -1,38 +0,0 @@
-/* vi: set sw=4 ts=4: */
-/*
- * Utility routines.
- *
- * create raw socket for icmp (IPv6 version) protocol
- * and drop root privileges if running setuid
- *
- * Licensed under GPLv2, see file LICENSE in this source tree.
- */
-
-#include "libbb.h"
-
-#if ENABLE_FEATURE_IPV6
-int FAST_FUNC create_icmp6_socket(void)
-{
-	int sock;
-#if 0
-	struct protoent *proto;
-	proto = getprotobyname("ipv6-icmp");
-	/* if getprotobyname failed, just silently force
-	 * proto->p_proto to have the correct value for "ipv6-icmp" */
-	sock = socket(AF_INET6, SOCK_RAW,
-			(proto ? proto->p_proto : IPPROTO_ICMPV6));
-#else
-	sock = socket(AF_INET6, SOCK_RAW, IPPROTO_ICMPV6);
-#endif
-	if (sock < 0) {
-		if (errno == EPERM)
-			bb_error_msg_and_die(bb_msg_perm_denied_are_you_root);
-		bb_perror_msg_and_die(bb_msg_can_not_create_raw_socket);
-	}
-
-	/* drop root privs if running setuid */
-	xsetuid(getuid());
-
-	return sock;
-}
-#endif
diff --git a/libbb/create_icmp_socket.c b/libbb/create_icmp_socket.c
deleted file mode 100644
index 5856269..0000000
--- a/libbb/create_icmp_socket.c
+++ /dev/null
@@ -1,36 +0,0 @@
-/* vi: set sw=4 ts=4: */
-/*
- * Utility routines.
- *
- * create raw socket for icmp protocol
- * and drop root privileges if running setuid
- *
- * Licensed under GPLv2, see file LICENSE in this source tree.
- */
-
-#include "libbb.h"
-
-int FAST_FUNC create_icmp_socket(void)
-{
-	int sock;
-#if 0
-	struct protoent *proto;
-	proto = getprotobyname("icmp");
-	/* if getprotobyname failed, just silently force
-	 * proto->p_proto to have the correct value for "icmp" */
-	sock = socket(AF_INET, SOCK_RAW,
-			(proto ? proto->p_proto : 1)); /* 1 == ICMP */
-#else
-	sock = socket(AF_INET, SOCK_RAW, 1); /* 1 == ICMP */
-#endif
-	if (sock < 0) {
-		if (errno == EPERM)
-			bb_error_msg_and_die(bb_msg_perm_denied_are_you_root);
-		bb_perror_msg_and_die(bb_msg_can_not_create_raw_socket);
-	}
-
-	/* drop root privs if running setuid */
-	xsetuid(getuid());
-
-	return sock;
-}