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ping: don't measure times if ping payload is less than 8 bytes;

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commonalize some ping code.
This commit is contained in:
Denis Vlasenko 2007-03-03 00:36:35 +00:00
parent 2110aa9ece
commit 19c238bc90
3 changed files with 81 additions and 115 deletions
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10
libbb/create_icmp_socket.c
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@ -10,8 +10,6 @@
#include <sys/types.h>
#include <netdb.h>
#include <sys/socket.h>
#include <errno.h>
#include <unistd.h>
#include "libbb.h"
int create_icmp_socket(void)
@ -22,12 +20,12 @@ int create_icmp_socket(void)
proto = getprotobyname("icmp");
/* if getprotobyname failed, just silently force
* proto->p_proto to have the correct value for "icmp" */
if ((sock = socket(AF_INET, SOCK_RAW,
(proto ? proto->p_proto : 1))) < 0) { /* 1 == ICMP */
sock = socket(AF_INET, SOCK_RAW,
(proto ? proto->p_proto : 1)); /* 1 == ICMP */
if (sock < 0) {
if (errno == EPERM)
bb_error_msg_and_die(bb_msg_perm_denied_are_you_root);
else
bb_perror_msg_and_die(bb_msg_can_not_create_raw_socket);
bb_perror_msg_and_die(bb_msg_can_not_create_raw_socket);
}
/* drop root privs if running setuid */