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util: Add helper to return name of address family

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We have a few places where we want to include the name of the internet
protocol version (IPv4 or IPv6) in a message, which we handle with an
open-coded ?: expression.

This seems like something that might be more widely useful, so make a
trivial helper to return the correct string based on the address family.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
This commit is contained in:
David Gibson
2024-03-21 15:04:48 +11:00
committed by Stefano Brivio
parent f4e38b5cd2
commit 67a6258918
2 changed files with 21 additions and 3 deletions
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6
netlink.c
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@@ -309,7 +309,7 @@ unsigned int nl_get_ext_if(int s, sa_family_t af)
if (defifi) {
if (ndef > 1)
info("Multiple default %s routes, picked first",
af == AF_INET ? "IPv4" : "IPv6");
af_name(af));
return defifi;
}
@@ -318,11 +318,11 @@ unsigned int nl_get_ext_if(int s, sa_family_t af)
return anyifi;
info("Multiple interfaces with %s routes, use -i to select one",
af == AF_INET ? "IPv4" : "IPv6");
af_name(af));
}
if (!nany)
info("No interfaces with %s routes", af == AF_INET ? "IPv4" : "IPv6");
info("No interfaces with %s routes", af_name(af));
return 0;
}