static + __dead + G/C pathmtu
This commit is contained in:
joerg
parent
c6d7b0bb59
commit
3fedada239
@ -1,4 +1,4 @@
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/* $NetBSD: ping6.c,v 1.74 2011/08/14 12:09:35 christos Exp $ */
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/* $NetBSD: ping6.c,v 1.75 2011/08/27 18:43:24 joerg Exp $ */
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/* $KAME: ping6.c,v 1.164 2002/11/16 14:05:37 itojun Exp $ */
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/*
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@ -77,7 +77,7 @@ static char sccsid[] = "@(#)ping.c 8.1 (Berkeley) 6/5/93";
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#else
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#include <sys/cdefs.h>
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#ifndef lint
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__RCSID("$NetBSD: ping6.c,v 1.74 2011/08/14 12:09:35 christos Exp $");
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__RCSID("$NetBSD: ping6.c,v 1.75 2011/08/27 18:43:24 joerg Exp $");
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#endif
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#endif
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@ -189,7 +189,7 @@ struct tv32 {
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#define F_SUPTYPES 0x80000
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#define F_NOMINMTU 0x100000
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#define F_NOUSERDATA (F_NODEADDR | F_FQDN | F_FQDNOLD | F_SUPTYPES)
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u_int options;
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static u_int options;
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#define IN6LEN sizeof(struct in6_addr)
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#define SA6LEN sizeof(struct sockaddr_in6)
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@ -203,81 +203,80 @@ u_int options;
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* to 8192 for complete accuracy...
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*/
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#define MAX_DUP_CHK (8 * 8192)
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int mx_dup_ck = MAX_DUP_CHK;
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char rcvd_tbl[MAX_DUP_CHK / 8];
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static int mx_dup_ck = MAX_DUP_CHK;
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static char rcvd_tbl[MAX_DUP_CHK / 8];
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struct addrinfo *res;
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struct sockaddr_in6 dst; /* who to ping6 */
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struct sockaddr_in6 src; /* src addr of this packet */
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socklen_t srclen;
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int datalen = DEFDATALEN;
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int s; /* socket file descriptor */
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u_char outpack[MAXPACKETLEN];
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char BSPACE = '\b'; /* characters written for flood */
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char DOT = '.';
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char *hostname;
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int ident; /* process id to identify our packets */
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u_int8_t nonce[8]; /* nonce field for node information */
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int hoplimit = -1; /* hoplimit */
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int pathmtu = 0; /* path MTU for the destination. 0 = unspec. */
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static struct addrinfo *res;
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static struct sockaddr_in6 dst; /* who to ping6 */
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static struct sockaddr_in6 src; /* src addr of this packet */
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static socklen_t srclen;
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static int datalen = DEFDATALEN;
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static int s; /* socket file descriptor */
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static u_char outpack[MAXPACKETLEN];
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static char BSPACE = '\b'; /* characters written for flood */
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static char DOT = '.';
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static char *hostname;
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static int ident; /* process id to identify our packets */
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static u_int8_t nonce[8]; /* nonce field for node information */
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static int hoplimit = -1; /* hoplimit */
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/* counters */
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long npackets; /* max packets to transmit */
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long nreceived; /* # of packets we got back */
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long nrepeats; /* number of duplicates */
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long ntransmitted; /* sequence # for outbound packets = #sent */
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struct timeval interval = {1, 0}; /* interval between packets */
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static long npackets; /* max packets to transmit */
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static long nreceived; /* # of packets we got back */
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static long nrepeats; /* number of duplicates */
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static long ntransmitted; /* sequence # for outbound packets = #sent */
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static struct timeval interval = {1, 0}; /* interval between packets */
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/* timing */
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int timing; /* flag to do timing */
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double tmin = 999999999.0; /* minimum round trip time */
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double tmax = 0.0; /* maximum round trip time */
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double tsum = 0.0; /* sum of all times, for doing average */
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double tsumsq = 0.0; /* sum of all times squared, for std. dev. */
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static int timing; /* flag to do timing */
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static double tmin = 999999999.0; /* minimum round trip time */
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static double tmax = 0.0; /* maximum round trip time */
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static double tsum = 0.0; /* sum of all times, for doing average */
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static double tsumsq = 0.0; /* sum of all times squared, for std. dev. */
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/* for node addresses */
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u_short naflags;
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static u_short naflags;
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/* for ancillary data(advanced API) */
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struct msghdr smsghdr;
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struct iovec smsgiov;
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char *scmsg = 0;
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static struct msghdr smsghdr;
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static struct iovec smsgiov;
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static char *scmsg = 0;
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volatile sig_atomic_t seenalrm;
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volatile sig_atomic_t seenint;
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static volatile sig_atomic_t seenalrm;
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static volatile sig_atomic_t seenint;
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#ifdef SIGINFO
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volatile sig_atomic_t seeninfo;
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static volatile sig_atomic_t seeninfo;
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#endif
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void fill(char *, char *);
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int get_hoplim(struct msghdr *);
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int get_pathmtu(struct msghdr *);
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struct in6_pktinfo *get_rcvpktinfo(struct msghdr *);
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void onsignal(int);
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void retransmit(void);
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void onint(int);
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size_t pingerlen(void);
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int pinger(void);
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const char *pr_addr(struct sockaddr *, int);
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void pr_icmph(struct icmp6_hdr *, u_char *);
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void pr_iph(struct ip6_hdr *);
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void pr_suptypes(struct icmp6_nodeinfo *, size_t);
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void pr_nodeaddr(struct icmp6_nodeinfo *, int);
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int myechoreply(const struct icmp6_hdr *);
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int mynireply(const struct icmp6_nodeinfo *);
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char *dnsdecode(const u_char **, const u_char *, const u_char *,
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static void fill(char *, char *);
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static int get_hoplim(struct msghdr *);
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static int get_pathmtu(struct msghdr *);
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static struct in6_pktinfo *get_rcvpktinfo(struct msghdr *);
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static void onsignal(int);
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static void retransmit(void);
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__dead static void onint(int);
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static size_t pingerlen(void);
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static int pinger(void);
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static const char *pr_addr(struct sockaddr *, int);
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static void pr_icmph(struct icmp6_hdr *, u_char *);
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static void pr_iph(struct ip6_hdr *);
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static void pr_suptypes(struct icmp6_nodeinfo *, size_t);
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static void pr_nodeaddr(struct icmp6_nodeinfo *, int);
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static int myechoreply(const struct icmp6_hdr *);
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static int mynireply(const struct icmp6_nodeinfo *);
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static char *dnsdecode(const u_char **, const u_char *, const u_char *,
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char *, size_t);
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void pr_pack(u_char *, int, struct msghdr *);
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void pr_exthdrs(struct msghdr *);
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void pr_ip6opt(void *);
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void pr_rthdr(void *);
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int pr_bitrange(u_int32_t, int, int);
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void pr_retip(struct ip6_hdr *, u_char *);
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void summary(void);
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void tvsub(struct timeval *, struct timeval *);
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int setpolicy(int, char *);
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char *nigroup(char *);
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void usage(void);
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static void pr_pack(u_char *, int, struct msghdr *);
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static void pr_exthdrs(struct msghdr *);
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static void pr_ip6opt(void *);
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static void pr_rthdr(void *);
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static int pr_bitrange(u_int32_t, int, int);
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static void pr_retip(struct ip6_hdr *, u_char *);
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static void summary(void);
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static void tvsub(struct timeval *, struct timeval *);
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static int setpolicy(int, char *);
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static char *nigroup(char *);
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__dead static void usage(void);
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int
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main(int argc, char *argv[])
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@ -1107,7 +1106,7 @@ main(int argc, char *argv[])
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exit(nreceived == 0);
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}
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void
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static void
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onsignal(int sig)
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{
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@ -1130,7 +1129,7 @@ onsignal(int sig)
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* retransmit --
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* This routine transmits another ping6.
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*/
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void
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static void
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retransmit(void)
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{
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struct itimerval itimer;
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@ -1166,7 +1165,7 @@ retransmit(void)
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* of the data portion are used to hold a UNIX "timeval" struct in VAX
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* byte-order, to compute the round-trip time.
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*/
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size_t
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static size_t
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pingerlen(void)
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{
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size_t l;
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@ -1185,7 +1184,7 @@ pingerlen(void)
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return l;
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}
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int
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static int
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pinger(void)
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{
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struct icmp6_hdr *icp;
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@ -1287,7 +1286,7 @@ pinger(void)
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return(0);
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}
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int
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static int
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myechoreply(const struct icmp6_hdr *icp)
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{
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if (ntohs(icp->icmp6_id) == ident)
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@ -1296,7 +1295,7 @@ myechoreply(const struct icmp6_hdr *icp)
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return 0;
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}
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int
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static int
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mynireply(const struct icmp6_nodeinfo *nip)
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{
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if (memcmp(nip->icmp6_ni_nonce + sizeof(u_int16_t),
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@ -1307,7 +1306,7 @@ mynireply(const struct icmp6_nodeinfo *nip)
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return 0;
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}
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char *
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static char *
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dnsdecode(const u_char **sp, const u_char *ep, const u_char *base, char *buf,
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size_t bufsiz)
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{
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@ -1375,7 +1374,7 @@ dnsdecode(const u_char **sp, const u_char *ep, const u_char *base, char *buf,
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* which arrive ('tis only fair). This permits multiple copies of this
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* program to be run without having intermingled output (or statistics!).
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*/
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void
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static void
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pr_pack(u_char *buf, int cc, struct msghdr *mhdr)
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{
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#define safeputc(c) printf((isprint((c)) ? "%c" : "\\%03o"), c)
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@ -1654,7 +1653,7 @@ pr_pack(u_char *buf, int cc, struct msghdr *mhdr)
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#undef safeputc
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}
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void
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static void
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pr_exthdrs(struct msghdr *mhdr)
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{
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struct cmsghdr *cm;
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@ -1684,7 +1683,7 @@ pr_exthdrs(struct msghdr *mhdr)
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}
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}
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void
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static void
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pr_ip6opt(void *extbuf)
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{
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struct ip6_hbh *ext;
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@ -1736,7 +1735,7 @@ pr_ip6opt(void *extbuf)
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return;
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}
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void
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static void
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pr_rthdr(void *extbuf)
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{
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struct in6_addr *in6;
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@ -1769,7 +1768,7 @@ pr_rthdr(void *extbuf)
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}
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int
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static int
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pr_bitrange(u_int32_t v, int soff, int ii)
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{
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int off;
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@ -1815,7 +1814,7 @@ pr_bitrange(u_int32_t v, int soff, int ii)
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return ii;
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}
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void
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static void
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pr_suptypes(struct icmp6_nodeinfo *ni /* ni->qtype must be SUPTYPES */,
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size_t nilen)
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{
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@ -1881,7 +1880,7 @@ pr_suptypes(struct icmp6_nodeinfo *ni /* ni->qtype must be SUPTYPES */,
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}
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}
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void
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static void
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pr_nodeaddr(struct icmp6_nodeinfo *ni, /* ni->qtype must be NODEADDR */
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int nilen)
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{
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@ -1947,7 +1946,7 @@ pr_nodeaddr(struct icmp6_nodeinfo *ni, /* ni->qtype must be NODEADDR */
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}
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}
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int
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static int
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get_hoplim(struct msghdr *mhdr)
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{
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struct cmsghdr *cm;
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@ -1966,7 +1965,7 @@ get_hoplim(struct msghdr *mhdr)
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return(-1);
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}
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struct in6_pktinfo *
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static struct in6_pktinfo *
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get_rcvpktinfo(struct msghdr *mhdr)
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{
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struct cmsghdr *cm;
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@ -1985,7 +1984,7 @@ get_rcvpktinfo(struct msghdr *mhdr)
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return(NULL);
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}
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int
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static int
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get_pathmtu(struct msghdr *mhdr)
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{
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#ifdef IPV6_RECVPATHMTU
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@ -2045,7 +2044,7 @@ get_pathmtu(struct msghdr *mhdr)
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* Subtract 2 timeval structs: out = out - in. Out is assumed to
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* be >= in.
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*/
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void
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static void
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tvsub(struct timeval *out, struct timeval *in)
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{
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if ((out->tv_usec -= in->tv_usec) < 0) {
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@ -2060,7 +2059,7 @@ tvsub(struct timeval *out, struct timeval *in)
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* SIGINT handler.
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*/
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/* ARGSUSED */
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void
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static void
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onint(int notused)
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{
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summary();
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@ -2076,7 +2075,7 @@ onint(int notused)
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* summary --
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* Print out statistics.
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*/
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void
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static void
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summary(void)
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{
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@ -2130,7 +2129,7 @@ static const char *nircode[] = {
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* pr_icmph --
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* Print a descriptive string about an ICMP header.
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*/
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void
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static void
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pr_icmph(struct icmp6_hdr *icp, u_char *end)
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{
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char ntop_buf[INET6_ADDRSTRLEN];
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@ -2360,7 +2359,7 @@ pr_icmph(struct icmp6_hdr *icp, u_char *end)
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* pr_iph --
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* Print an IP6 header.
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*/
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void
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static void
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pr_iph(struct ip6_hdr *ip6)
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{
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u_int32_t flow = ip6->ip6_flow & IPV6_FLOWLABEL_MASK;
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@ -2388,7 +2387,7 @@ pr_iph(struct ip6_hdr *ip6)
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* Return an ascii host address as a dotted quad and optionally with
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* a hostname.
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*/
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const char *
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static const char *
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pr_addr(struct sockaddr *addr, int addrlen)
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{
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static char buf[NI_MAXHOST];
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@ -2407,7 +2406,7 @@ pr_addr(struct sockaddr *addr, int addrlen)
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* pr_retip --
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* Dump some info on a returned (via ICMPv6) IPv6 packet.
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*/
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void
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static void
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pr_retip(struct ip6_hdr *ip6, u_char *end)
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{
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u_char *cp = (u_char *)ip6, nh;
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@ -2487,7 +2486,7 @@ pr_retip(struct ip6_hdr *ip6, u_char *end)
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return;
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}
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void
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static void
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fill(char *bp, char *patp)
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{
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int ii, jj, kk;
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@ -2520,7 +2519,7 @@ fill(char *bp, char *patp)
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#ifdef IPSEC
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#ifdef IPSEC_POLICY_IPSEC
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int
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static int
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setpolicy(int so, char *policy)
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{
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char *buf;
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@ -2541,7 +2540,7 @@ setpolicy(int so, char *policy)
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#endif
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#endif
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char *
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static char *
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nigroup(char *name)
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{
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char *p;
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@ -2585,7 +2584,7 @@ nigroup(char *name)
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return strdup(hbuf);
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}
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void
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static void
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usage(void)
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{
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(void)fprintf(stderr,
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