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Upgrade libpcap to 1.8.1 (Nmap-specific patches not yet applied)

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This commit is contained in:
dmiller
2018-07-18 13:41:35 +00:00
parent cbb54f79a8
commit 3fc4a6fc95
216 changed files with 27408 additions and 18957 deletions
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76
libpcap/fad-getad.c
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@@ -144,7 +144,8 @@ get_sa_len(struct sockaddr *addr)
* could be opened.
*/
int
pcap_findalldevs_interfaces(pcap_if_t **alldevsp, char *errbuf)
pcap_findalldevs_interfaces(pcap_if_t **alldevsp, char *errbuf,
int (*check_usable)(const char *))
{
pcap_if_t *devlist = NULL;
struct ifaddrs *ifap, *ifa;
@@ -168,11 +169,50 @@ pcap_findalldevs_interfaces(pcap_if_t **alldevsp, char *errbuf)
* those.
*/
if (getifaddrs(&ifap) != 0) {
(void)snprintf(errbuf, PCAP_ERRBUF_SIZE,
(void)pcap_snprintf(errbuf, PCAP_ERRBUF_SIZE,
"getifaddrs: %s", pcap_strerror(errno));
return (-1);
}
for (ifa = ifap; ifa != NULL; ifa = ifa->ifa_next) {
/*
* If this entry has a colon followed by a number at
* the end, we assume it's a logical interface. Those
* are just the way you assign multiple IP addresses to
* a real interface on Linux, so an entry for a logical
* interface should be treated like the entry for the
* real interface; we do that by stripping off the ":"
* and the number.
*
* XXX - should we do this only on Linux?
*/
p = strchr(ifa->ifa_name, ':');
if (p != NULL) {
/*
* We have a ":"; is it followed by a number?
*/
q = p + 1;
while (isdigit((unsigned char)*q))
q++;
if (*q == '\0') {
/*
* All digits after the ":" until the end.
* Strip off the ":" and everything after
* it.
*/
*p = '\0';
}
}
/*
* Can we capture on this device?
*/
if (!(*check_usable)(ifa->ifa_name)) {
/*
* No.
*/
continue;
}
/*
* "ifa_addr" was apparently null on at least one
* interface on some system. Therefore, we supply
@@ -222,40 +262,12 @@ pcap_findalldevs_interfaces(pcap_if_t **alldevsp, char *errbuf)
dstaddr_size = 0;
}
/*
* If this entry has a colon followed by a number at
* the end, we assume it's a logical interface. Those
* are just the way you assign multiple IP addresses to
* a real interface on Linux, so an entry for a logical
* interface should be treated like the entry for the
* real interface; we do that by stripping off the ":"
* and the number.
*
* XXX - should we do this only on Linux?
*/
p = strchr(ifa->ifa_name, ':');
if (p != NULL) {
/*
* We have a ":"; is it followed by a number?
*/
q = p + 1;
while (isdigit((unsigned char)*q))
q++;
if (*q == '\0') {
/*
* All digits after the ":" until the end.
* Strip off the ":" and everything after
* it.
*/
*p = '\0';
}
}
/*
* Add information for this address to the list.
*/
if (add_addr_to_iflist(&devlist, ifa->ifa_name,
ifa->ifa_flags, addr, addr_size, netmask, addr_size,
if_flags_to_pcap_flags(ifa->ifa_name, ifa->ifa_flags),
addr, addr_size, netmask, addr_size,
broadaddr, broadaddr_size, dstaddr, dstaddr_size,
errbuf) < 0) {
ret = -1;