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PING(8): Use local scope for global variables

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This commit is contained in:
Sebastian Huber 2013-10-31 09:42:56 +01:00
parent c4645e4de4
commit 42c9944f61
1 changed files with 40 additions and 40 deletions
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80
freebsd/sbin/ping/ping.c
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@ -122,7 +122,7 @@ struct tv32 {
}; };
/* various options */ /* various options */
int options; static int options;
#define F_FLOOD 0x0001 #define F_FLOOD 0x0001
#define F_INTERVAL 0x0002 #define F_INTERVAL 0x0002
#define F_NUMERIC 0x0004 #define F_NUMERIC 0x0004
@ -157,51 +157,51 @@ int options;
* to 8192 for complete accuracy... * to 8192 for complete accuracy...
*/ */
#define MAX_DUP_CHK (8 * 128) #define MAX_DUP_CHK (8 * 128)
int mx_dup_ck = MAX_DUP_CHK; static int mx_dup_ck = MAX_DUP_CHK;
char rcvd_tbl[MAX_DUP_CHK / 8]; static char rcvd_tbl[MAX_DUP_CHK / 8];
struct sockaddr_in whereto; /* who to ping */ static struct sockaddr_in whereto; /* who to ping */
int datalen = DEFDATALEN; static int datalen = DEFDATALEN;
int maxpayload; static int maxpayload;
int s; /* socket file descriptor */ static int s; /* socket file descriptor */
u_char outpackhdr[IP_MAXPACKET], *outpack; static u_char outpackhdr[IP_MAXPACKET], *outpack;
char BBELL = '\a'; /* characters written for MISSED and AUDIBLE */ static char BBELL = '\a'; /* characters written for MISSED and AUDIBLE */
char BSPACE = '\b'; /* characters written for flood */ static char BSPACE = '\b'; /* characters written for flood */
char DOT = '.'; static char DOT = '.';
char *hostname; static char *hostname;
char *shostname; static char *shostname;
int ident; /* process id to identify our packets */ static int ident; /* process id to identify our packets */
int uid; /* cached uid for micro-optimization */ static int uid; /* cached uid for micro-optimization */
u_char icmp_type = ICMP_ECHO; static u_char icmp_type = ICMP_ECHO;
u_char icmp_type_rsp = ICMP_ECHOREPLY; static u_char icmp_type_rsp = ICMP_ECHOREPLY;
int phdr_len = 0; static int phdr_len = 0;
int send_len; static int send_len;
/* counters */ /* counters */
long nmissedmax; /* max value of ntransmitted - nreceived - 1 */ static long nmissedmax; /* max value of ntransmitted - nreceived - 1 */
long npackets; /* max packets to transmit */ static long npackets; /* max packets to transmit */
long nreceived; /* # of packets we got back */ static long nreceived; /* # of packets we got back */
long nrepeats; /* number of duplicates */ static long nrepeats; /* number of duplicates */
long ntransmitted; /* sequence # for outbound packets = #sent */ static long ntransmitted; /* sequence # for outbound packets = #sent */
long snpackets; /* max packets to transmit in one sweep */ static long snpackets; /* max packets to transmit in one sweep */
long snreceived; /* # of packets we got back in this sweep */ static long snreceived; /* # of packets we got back in this sweep */
long sntransmitted; /* # of packets we sent in this sweep */ static long sntransmitted; /* # of packets we sent in this sweep */
int sweepmax; /* max value of payload in sweep */ static int sweepmax; /* max value of payload in sweep */
int sweepmin = 0; /* start value of payload in sweep */ static int sweepmin = 0; /* start value of payload in sweep */
int sweepincr = 1; /* payload increment in sweep */ static int sweepincr = 1; /* payload increment in sweep */
int interval = 1000; /* interval between packets, ms */ static int interval = 1000; /* interval between packets, ms */
int waittime = MAXWAIT; /* timeout for each packet */ static int waittime = MAXWAIT; /* timeout for each packet */
long nrcvtimeout = 0; /* # of packets we got back after waittime */ static long nrcvtimeout = 0; /* # of packets we got back after waittime */
/* timing */ /* timing */
int timing; /* flag to do timing */ static int timing; /* flag to do timing */
double tmin = 999999999.0; /* minimum round trip time */ static double tmin = 999999999.0; /* minimum round trip time */
double tmax = 0.0; /* maximum round trip time */ static double tmax = 0.0; /* maximum round trip time */
double tsum = 0.0; /* sum of all times, for doing average */ static double tsum = 0.0; /* sum of all times, for doing average */
double tsumsq = 0.0; /* sum of all times squared, for std. dev. */ static double tsumsq = 0.0; /* sum of all times squared, for std. dev. */
volatile sig_atomic_t finish_up; /* nonzero if we've been told to finish up */ static volatile sig_atomic_t finish_up; /* nonzero if we've been told to finish up */
volatile sig_atomic_t siginfo_p; static volatile sig_atomic_t siginfo_p;
static void fill(char *, char *); static void fill(char *, char *);
static u_short in_cksum(u_short *, int); static u_short in_cksum(u_short *, int);