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Make it a warning, not a fatal error, when we can't get the hardware address

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for an interface, and skip the interface. The warning looks like

Warning: Unable to get hardware address for interface %s -- skipping it.

This happens when a FireWire interface (fw*) has an address configured on Mac
OS X. Previously Nmap would die in getinterfaces so it wasn't even possible to
scan over the other interfaces.
This commit is contained in:
david
2009-07-20 18:59:58 +00:00
parent 00ae29389a
commit a88bda3d78
2 changed files with 10 additions and 3 deletions
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6
CHANGELOG
View File

@@ -1,5 +1,11 @@
# Nmap Changelog ($Id$); -*-text-*-
o Nmap now prints a warning instead of a fatal error when the hardware
address of an interface can't be found. This is the case for
FireWire interfaces, which have a hardware address format not
supported by libdnet. Thanks to Julian Berdych for the bug report.
[David]
o Added the pjl-ready-message.nse script from Aaron Leininger. This
script allows viewing and setting the message displayed by printers
that support the Printer Job Language.

7
tcpip.cc
View File

@@ -3034,9 +3034,10 @@ static struct interface_info *getinterfaces_siocgifconf(int *howmany) {
error("Warning: Unable to open interface %s -- skipping it.", devs[count].devname);
continue;
}
if (eth_get(ethsd, &ethaddr) != 0)
fatal("%s: Failed to obtain MAC address for ethernet interface (%s)",
__func__, devs[count].devname);
if (eth_get(ethsd, &ethaddr) != 0) {
error("Warning: Unable to get hardware address for interface %s -- skipping it.", devs[count].devname);
continue;
}
memcpy(devs[count].mac, ethaddr.data, 6);
#endif /*SIOCGIFHWADDR*/
} else if (ifflags & IFF_POINTOPOINT) {