ping: add -t TTL option
function old new delta
common_ping_main 1755 1796 +41
packed_usage 27954 27971 +17
bbconfig_config_bz2 4965 4966 +1
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/0 up/down: 59/0) Total: 59 bytes
Signed-off-by: Joachim Nilsson <joachim.nilsson@vmlinux.org>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/networking/ping.c b/networking/ping.c
index 3aba490..8571d17 100644
--- a/networking/ping.c
+++ b/networking/ping.c
@@ -29,6 +29,92 @@
#include <netinet/ip_icmp.h>
#include "libbb.h"
+//config:config PING
+//config: bool "ping"
+//config: default y
+//config: depends on PLATFORM_LINUX
+//config: help
+//config: ping uses the ICMP protocol's mandatory ECHO_REQUEST datagram to
+//config: elicit an ICMP ECHO_RESPONSE from a host or gateway.
+//config:
+//config:config PING6
+//config: bool "ping6"
+//config: default y
+//config: depends on FEATURE_IPV6 && PING
+//config: help
+//config: This will give you a ping that can talk IPv6.
+//config:
+//config:config FEATURE_FANCY_PING
+//config: bool "Enable fancy ping output"
+//config: default y
+//config: depends on PING
+//config: help
+//config: Make the output from the ping applet include statistics, and at the
+//config: same time provide full support for ICMP packets.
+
+//applet:IF_PING(APPLET(ping, _BB_DIR_BIN, _BB_SUID_MAYBE))
+//applet:IF_PING6(APPLET(ping6, _BB_DIR_BIN, _BB_SUID_MAYBE))
+
+//kbuild:lib-$(CONFIG_PING) += ping.o
+//kbuild:lib-$(CONFIG_PING6) += ping.o
+
+//usage:#if !ENABLE_FEATURE_FANCY_PING
+//usage:# define ping_trivial_usage
+//usage: "HOST"
+//usage:# define ping_full_usage "\n\n"
+//usage: "Send ICMP ECHO_REQUEST packets to network hosts"
+//usage:# define ping6_trivial_usage
+//usage: "HOST"
+//usage:# define ping6_full_usage "\n\n"
+//usage: "Send ICMP ECHO_REQUEST packets to network hosts"
+//usage:#else
+//usage:# define ping_trivial_usage
+//usage: "[OPTIONS] HOST"
+//usage:# define ping_full_usage "\n\n"
+//usage: "Send ICMP ECHO_REQUEST packets to network hosts\n"
+//usage: "\nOptions:"
+//usage: "\n -4,-6 Force IP or IPv6 name resolution"
+//usage: "\n -c CNT Send only CNT pings"
+//usage: "\n -s SIZE Send SIZE data bytes in packets (default:56)"
+//usage: "\n -t TTL Set TTL"
+//usage: "\n -I IFACE/IP Use interface or IP address as source"
+//usage: "\n -W SEC Seconds to wait for the first response (default:10)"
+//usage: "\n (after all -c CNT packets are sent)"
+//usage: "\n -w SEC Seconds until ping exits (default:infinite)"
+//usage: "\n (can exit earlier with -c CNT)"
+//usage: "\n -q Quiet, only displays output at start"
+//usage: "\n and when finished"
+//usage:
+//usage:# define ping6_trivial_usage
+//usage: "[OPTIONS] HOST"
+//usage:# define ping6_full_usage "\n\n"
+//usage: "Send ICMP ECHO_REQUEST packets to network hosts\n"
+//usage: "\nOptions:"
+//usage: "\n -c CNT Send only CNT pings"
+//usage: "\n -s SIZE Send SIZE data bytes in packets (default:56)"
+//usage: "\n -I IFACE/IP Use interface or IP address as source"
+//usage: "\n -q Quiet, only displays output at start"
+//usage: "\n and when finished"
+//usage:
+//usage:#endif
+//usage:
+//usage:#define ping_example_usage
+//usage: "$ ping localhost\n"
+//usage: "PING slag (127.0.0.1): 56 data bytes\n"
+//usage: "64 bytes from 127.0.0.1: icmp_seq=0 ttl=255 time=20.1 ms\n"
+//usage: "\n"
+//usage: "--- debian ping statistics ---\n"
+//usage: "1 packets transmitted, 1 packets received, 0% packet loss\n"
+//usage: "round-trip min/avg/max = 20.1/20.1/20.1 ms\n"
+//usage:#define ping6_example_usage
+//usage: "$ ping6 ip6-localhost\n"
+//usage: "PING ip6-localhost (::1): 56 data bytes\n"
+//usage: "64 bytes from ::1: icmp6_seq=0 ttl=64 time=20.1 ms\n"
+//usage: "\n"
+//usage: "--- ip6-localhost ping statistics ---\n"
+//usage: "1 packets transmitted, 1 packets received, 0% packet loss\n"
+//usage: "round-trip min/avg/max = 20.1/20.1/20.1 ms\n"
+
#if ENABLE_PING6
# include <netinet/icmp6.h>
/* I see RENUMBERED constants in bits/in.h - !!?
@@ -223,17 +309,18 @@
/* Full(er) version */
-#define OPT_STRING ("qvc:s:w:W:I:4" IF_PING6("6"))
+#define OPT_STRING ("qvc:s:t:w:W:I:4" IF_PING6("6"))
enum {
OPT_QUIET = 1 << 0,
OPT_VERBOSE = 1 << 1,
OPT_c = 1 << 2,
OPT_s = 1 << 3,
- OPT_w = 1 << 4,
- OPT_W = 1 << 5,
- OPT_I = 1 << 6,
- OPT_IPV4 = 1 << 7,
- OPT_IPV6 = (1 << 8) * ENABLE_PING6,
+ OPT_t = 1 << 4,
+ OPT_w = 1 << 5,
+ OPT_W = 1 << 6,
+ OPT_I = 1 << 7,
+ OPT_IPV4 = 1 << 8,
+ OPT_IPV6 = (1 << 9) * ENABLE_PING6,
};
@@ -244,6 +331,7 @@
len_and_sockaddr *source_lsa;
unsigned datalen;
unsigned pingcount; /* must be int-sized */
+ unsigned opt_ttl;
unsigned long ntransmitted, nreceived, nrepeats;
uint16_t myid;
unsigned tmin, tmax; /* in us */
@@ -275,6 +363,7 @@
#define nreceived (G.nreceived )
#define nrepeats (G.nrepeats )
#define pingcount (G.pingcount )
+#define opt_ttl (G.opt_ttl )
#define myid (G.myid )
#define tmin (G.tmin )
#define tmax (G.tmax )
@@ -586,6 +675,10 @@
sockopt = (datalen * 2) + 7 * 1024; /* giving it a bit of extra room */
setsockopt(pingsock, SOL_SOCKET, SO_RCVBUF, &sockopt, sizeof(sockopt));
+ if (opt_ttl != 0)
+ //setsockopt(pingsock, IPPROTO_IP, IP_MULTICAST_TTL, &opt_ttl, sizeof(opt_ttl));
+ setsockopt(pingsock, IPPROTO_IP, IP_TTL, &opt_ttl, sizeof(opt_ttl));
+
signal(SIGINT, print_stats_and_exit);
/* start the ping's going ... */
@@ -735,9 +828,9 @@
INIT_G();
- /* exactly one argument needed; -v and -q don't mix; -c NUM, -w NUM, -W NUM */
- opt_complementary = "=1:q--v:v--q:c+:w+:W+";
- opt |= getopt32(argv, OPT_STRING, &pingcount, &str_s, &deadline, &timeout, &str_I);
+ /* exactly one argument needed; -v and -q don't mix; -c NUM, -t NUM, -w NUM, -W NUM */
+ opt_complementary = "=1:q--v:v--q:c+:t+:w+:W+";
+ opt |= getopt32(argv, OPT_STRING, &pingcount, &str_s, &opt_ttl, &deadline, &timeout, &str_I);
if (opt & OPT_s)
datalen = xatou16(str_s); // -s
if (opt & OPT_I) { // -I