| 1 | #!/bin/sh |
| 2 | # Ensure that gzip -cdf handles mixed compressed/not-compressed data |
| 3 | # Before gzip-1.5, it would produce invalid output. |
| 4 | |
| 5 | # Copyright (C) 2010-2016 Free Software Foundation, Inc. |
| 6 | |
| 7 | # This program is free software: you can redistribute it and/or modify |
| 8 | # it under the terms of the GNU General Public License as published by |
| 9 | # the Free Software Foundation, either version 3 of the License, or |
| 10 | # (at your option) any later version. |
| 11 | |
| 12 | # This program is distributed in the hope that it will be useful, |
| 13 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | # GNU General Public License for more details. |
| 16 | |
| 17 | # You should have received a copy of the GNU General Public License |
| 18 | # along with this program. If not, see <https://www.gnu.org/licenses/>. |
| 19 | # limit so don't run it by default. |
| 20 | |
| 21 | . "${srcdir=.}/init.sh"; path_prepend_ . |
| 22 | |
| 23 | printf 'xxx\nyyy\n' > exp2 || framework_failure_ |
| 24 | printf 'aaa\nbbb\nccc\n' > exp3 || framework_failure_ |
| 25 | |
| 26 | fail=0 |
| 27 | |
| 28 | (echo xxx; echo yyy) > in || fail=1 |
| 29 | gzip -cdf < in > out || fail=1 |
| 30 | compare exp2 out || fail=1 |
| 31 | |
| 32 | # Uncompressed input, followed by compressed data. |
| 33 | # Currently fails, so skip it. |
| 34 | # (echo xxx; echo yyy|gzip) > in || fail=1 |
| 35 | # gzip -cdf < in > out || fail=1 |
| 36 | # compare exp2 out || fail=1 |
| 37 | |
| 38 | # Compressed input, followed by regular (not-compressed) data. |
| 39 | (echo xxx|gzip; echo yyy) > in || fail=1 |
| 40 | gzip -cdf < in > out || fail=1 |
| 41 | compare exp2 out || fail=1 |
| 42 | |
| 43 | (echo xxx|gzip; echo yyy|gzip) > in || fail=1 |
| 44 | gzip -cdf < in > out || fail=1 |
| 45 | compare exp2 out || fail=1 |
| 46 | |
| 47 | in_str=0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_-+=% |
| 48 | for i in 0 1 2 3 4 5 6 7 8 9 a; do in_str="$in_str$in_str" ;done |
| 49 | |
| 50 | # Start with some small sizes. $(seq 64) |
| 51 | sizes=$(i=0; while :; do echo $i; test $i = 64 && break; i=$(expr $i + 1); done) |
| 52 | |
| 53 | # gzip's internal buffer size is 32KiB + 64 bytes: |
| 54 | sizes="$sizes 32831 32832 32833" |
| 55 | |
| 56 | # 128KiB, +/- 1 |
| 57 | sizes="$sizes 131071 131072 131073" |
| 58 | |
| 59 | # Ensure that "gzip -cdf" acts like cat, for a range of small input files. |
| 60 | i=0 |
| 61 | for i in $sizes; do |
| 62 | echo $i |
| 63 | printf %$i.${i}s $in_str > in |
| 64 | gzip -cdf < in > out |
| 65 | compare in out || fail=1 |
| 66 | done |
| 67 | |
| 68 | Exit $fail |