[Bug] Long input to zencode_exec are truncated by terminal

[matteo-cristino]

When using the zencode_exec executable by running ./zencode_exec and then adding the input one by one can cause problem when input exceed the terminal input limit, for example my terminal limit seems to be 4096 and zencode-exec returned

Invalid input base64 encoding

beacuse my input was truncated...

Something similar, but not yet sure on what is happening is when using zencode-exec from go bidings.

To reproduce locally use

• Contract:

# SPDX-License-Identifier: AGPL-3.0-or-later
# Copyright (C) 2022-2023 Dyne.org foundation <foundation@dyne.org>.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <https://www.gnu.org/licenses/>.

Scenario eddsa: verify the signature of a graph query

Given I have a 'base64' named 'gql'
Given I have a 'base64' named 'eddsa signature'
Given I have a 'base58' named 'eddsa public key'

# check that the graph query is reentrant
# When I create the count of char '{' found in 'graphql'
# and I rename 'count' to 'open'
# and I create the count of char '}' found in 'graphql'
# and I remove 'count'
# and I remove 'open'
# When I create the count of char '(' found in 'graphql'
# and I rename 'count' to 'open'
# and I create the count of char ')' found in 'graphql'
# and I remove 'count'
# and I remove 'open'
# When I create the count of char '[' found in 'graphql'
# and I rename 'count' to 'open'
# and I create the count of char ']' found in 'graphql'
# and I verify 'count' is equal to 'open'

# Fix Apollo's mingling with query string
When I remove spaces in 'gql'
and I compact ascii strings in 'gql'
When I verify the 'gql' has a eddsa signature in 'eddsa signature' by 'eddsa public key'

Then print the string '1'

• keys

{
  "gql":"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",
  "eddsa_signature":"wCi4of9f/LzVp882xRtEDkvUPf4BeWfDU+shcAbgMIGJaliEh+TEC3V12ToFD6h3/T8SSEIhn5m6KW7XfxlSDg==",
  "eddsa_public_key":"5yPoEPQQgTnqnGWjJwucZ67bQsoGHh65Nz6Ak2vLoYtc"
}

and you will obtain a *** buffer overflow detected ***: terminated error

[matteo-cristino]

solved in #1169 for the go bindings