Re: [PATCH] Fix ss Netid column and Local/Peer_Address
From: Yoann P. <hidden>
Date: 2018-10-30 04:56:52
Hi Yohann, On Fri, 26 Oct 2018 22:53:32 +0200 "Yoann P." [off-list ref] wrote:quoted
When using ss -Hutn4 or -utn3, Netid and State columns are sometime merged, it can be confusing when trying to pipe into awk or column.Thanks for fixing this. A few comments though:quoted
@@ -144,9 +144,9 @@ static struct column columns[] = { { ALIGN_LEFT, "State", " ", 0, 0, 0 }, { ALIGN_LEFT, "Recv-Q", " ", 0, 0, 0 }, { ALIGN_LEFT, "Send-Q", " ", 0, 0, 0 }, - { ALIGN_RIGHT, "Local Address:", " ", 0, 0, 0 }, + { ALIGN_RIGHT, "Local_Address:", " ", 0, 0, 0 }, { ALIGN_LEFT, "Port", "", 0, 0, 0 }, - { ALIGN_RIGHT, "Peer Address:", " ", 0, 0, 0 }, + { ALIGN_RIGHT, "Peer_Address:", " ", 0, 0, 0 },This is needed only if you pipe the output to column(1), I don't think it's a bug, because printing the header when you pass the output to column(1) makes little sense -- one should use -H then.
I don't really care about this modification, I came across it while making the github issue example, seemed to be little change, so I dit it.
By the way, why do you use column(1), when ss already prints output in columns? Any other issue you are working around?
column can hide columns with "-H -" and is a bit faster than awk to output a single column according to time, it's the only reason I mentioned it.
quoted
{ ALIGN_LEFT, "Port", "", 0, 0, 0 }, { ALIGN_LEFT, "", "", 0, 0, 0 }, };@@ -1334,7 +1334,7 @@ static void sock_state_print(struct sockstat *s) out("`- %s", sctp_sstate_name[s->state]); } else { field_set(COL_NETID); - out("%s", sock_name); + out("%-6s", sock_name);I could reproduce this issue with a 70-columns terminal and the options you gave. Anyway, I don't think this is the right way to fix it: this will waste one to two columns in case we have three letters for the Netid specifier, and won't work the day we get six-letters names. In general, it looks like a bad idea to reintroduce hardcoded width counts.
I agree, I just not found the proper way to do it (Not a programmer).
The actual issue seems to be that in some cases the left delimiter for the State column is not printed, and I think you should fix that instead. I'll look into this within a couple of days and give you some more specific hints in case you still need them by then.