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Try to support windows xp.

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Mr_Goldberg 2020-01-08 18:26:42 -05:00
parent a66779ed00
commit 2faba9bed9
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GPG Key ID: 8597D87419DEF278
1 changed files with 42 additions and 5 deletions
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47
dll/network.cpp
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@ -45,6 +45,45 @@ static IP_PORT broadcasts[MAX_BROADCASTS];
#include <iphlpapi.h>
//windows xp support
static int
inet_pton4(const char *src, uint32_t *dst)
{
static const char digits[] = "0123456789";
int saw_digit, octets, ch;
u_char tmp[sizeof(uint32_t)], *tp;
saw_digit = 0;
octets = 0;
*(tp = tmp) = 0;
while ((ch = *src++) != '\0') {
const char *pch;
if ((pch = strchr(digits, ch)) != NULL) {
size_t nx = *tp * 10 + (pch - digits);
if (nx > 255)
return (0);
*tp = (u_char) nx;
if (! saw_digit) {
if (++octets > 4)
return (0);
saw_digit = 1;
}
} else if (ch == '.' && saw_digit) {
if (octets == 4)
return (0);
*++tp = 0;
saw_digit = 0;
} else
return (0);
}
if (octets < 4)
return (0);
memcpy(dst, tmp, sizeof(uint32_t));
return (1);
}
static void get_broadcast_info(uint16 port)
{
number_broadcasts = 0;
@ -71,13 +110,11 @@ static void get_broadcast_info(uint16 port)
IP_ADAPTER_INFO *pAdapter = pAdapterInfo;
while (pAdapter) {
unsigned long iface_ip = 0, subnet_mask = 0;
uint32_t iface_ip = 0, subnet_mask = 0;
if (inet_pton(AF_INET, pAdapter->IpAddressList.IpMask.String, &subnet_mask) == 1
&& inet_pton(AF_INET, pAdapter->IpAddressList.IpAddress.String, &iface_ip) == 1) {
if (inet_pton4(pAdapter->IpAddressList.IpMask.String, &subnet_mask) == 1
&& inet_pton4(pAdapter->IpAddressList.IpAddress.String, &iface_ip) == 1) {
IP_PORT *ip_port = &broadcasts[number_broadcasts];
//ip_port->ip.family = AF_INET;
uint32 broadcast_ip = iface_ip | ~subnet_mask;
ip_port->ip = broadcast_ip;
ip_port->port = port;