busybox/shell/ash_test/ash-read/read_d0.tests
Christian Eggers 39925026f6 shell: Fix "read -d ''" behavior
With bash's read builtin it is possible to read from a file (e.g.
device-tree) until the first '\0' character:

IFS= read -r -d '' VARIABLE < file

In busybox ash the -d extension is also implemented, but checking the
read character for '\0' has to be performed after comparing with the
delimiter.

Signed-off-by: Christian Eggers <ceggers@arri.de>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-07-31 18:42:30 +02:00

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printf 'test\0zest\n' | (read -d '' reply; echo "$reply")