OFI components: using FI_NAME_MAX is incorrect

[hppritcha]

I've started working with a new OFI provider which has rather long endpoint names returned from fi_getname.
We currently have fixed size char arrays of size FI_NAME_MAX size and do not use the fi_getname in the way it was intended.

It turns out there's a bug in OFI libfabric and this enum should not have been exposed.

Related to https://github.com/ofiwg/libfabric/issues/7898

[wckzhang]

Is this the sort of behavior you're trying to implement?

size_t len = 1;
char tmp_addr[1];
fi_getname(fid, tmp_addr, &len);
char *addr = malloc(len);
fi_getname(fid, addr, &len);

[hppritcha]

Yeah I’ll open a pr next week for this week.

From: William Zhang @.> Reply-To: open-mpi/ompi @.> Date: Wednesday, July 27, 2022 at 2:15 PM To: open-mpi/ompi @.> Cc: "Pritchard Jr., Howard" @.>, Assign @.***> Subject: [EXTERNAL] Re: [open-mpi/ompi] OFI components: using FI_NAME_MAX is incorrect (Issue #10617)

Is this the sort of behavior you're trying to implement?

size_t len = 1;

char tmp_addr[1];

fi_getname(fid, tmp_addr, &len);

char *addr = malloc(len);

fi_getname(fid, addr, &len);

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[hppritcha]

closed via #10659 and #10620