On Mon, Sep 22, 2025 at 10:52:21PM +0200, Bernhard Übelacker wrote: > Am 22.09.25 um 16:30 schrieb Nicolas Schier: > > Thanks a lot! > > > > According to Linux's kernels netif_set_alias() [1,2], it would make > > sense to increase it even to IFALIASZ (currently: 256). > > > > I am planning to forward a patch to upstream within this week; or do > > you want to do it yourself? > > > > Kind regards, > > Nicolas > > > Hello Nicolas, > thanks for taking a look. > If kernel allows names that long I guess this tool should > also use this length, yes. > Would be great if you could forward it to upstream, > I am not really sure where to send it.
Joeys (upstream) mail is to be found in README and debian/copyright. But I have to correct my own reply: IFALIASZ is irrelevant, as ifdata only parses /proc/net/dev, thus the POSIX default IFNAMSIZ is the maximum string lenght (including NULL terminator). I have not yet found a fscanf() format string that incorporates the compile-time variable string length that still looks kind of beautiful. Hard-coding to a concrete integer (like 10 as it is or 20 as you suggested) is for sure still possible but does not look "right" to me. I'll try to find a nicer solution... Kind regards, Nicolas
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