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libnet: avoid unterminated strings

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Signed-off-by: MarkusVolk <f_l_k@t-online.de>
This commit is contained in:
MarkusVolk
2020-01-14 08:55:44 +01:00
committed by Thilo Graf
parent 4c3afd447f
commit 535bbef5dd
1 changed files with 2 additions and 2 deletions
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4
lib/libnet/libnet.cpp
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@@ -102,7 +102,7 @@ void netGetIP(std::string &dev, std::string &ip, std::string &mask, std::string
memset(&req,0,sizeof(req));
strncpy(req.ifr_name, dev.c_str(), sizeof(req.ifr_name));
strncpy(req.ifr_name, dev.c_str(), sizeof(req.ifr_name)-1);
saddr = (struct sockaddr_in *) &req.ifr_addr;
addr= (unsigned char*) &saddr->sin_addr.s_addr;
@@ -290,7 +290,7 @@ void netGetMacAddr(std::string &ifname, unsigned char *mac)
return;
ifr.ifr_addr.sa_family = AF_INET;
strncpy(ifr.ifr_name, ifname.c_str(), sizeof(ifr.ifr_name));
strncpy(ifr.ifr_name, ifname.c_str(), sizeof(ifr.ifr_name)-1);
if(ioctl(fd, SIOCGIFHWADDR, &ifr) < 0)
return;