iconv stdio buffering

Bug #1568726 reported by R. Diez on 2016-04-11
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This bug affects 1 person
Affects Status Importance Assigned to Milestone
eglibc (Ubuntu)
Undecided
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Bug Description

Tool "iconv" suffers from the stdio buffering problem described here:

https://stackoverflow.com/questions/14472179/how-do-i-perform-a-streaming-character-conversion

Basically, when piping to iconv in an interactive session, output stutters. Tool "stdbuf" does not help. From the page above: "But it looks like iconv is managing the buffering internally itself - it's nothing to do with the Linux pipe buffer."

Solutions are described in this page:

http://www.pixelbeat.org/programming/stdio_buffering/

iconv should have a command-line switch to help. From the page above:

"Note tail's stdout buffer would also have this problem, but tail -f calls fflush
on the stdout stream when new data is received to alleviate this
(as do tcpdump -l, grep --line-buffered and sed --unbuffered for example)."

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