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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-05 18:46:38 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-05 18:46:38 +0000
commita06ac93dcf311dac3943cb5d96ad47625d413c2d (patch)
tree6efda5e24896e7920ccac1f97aecc73406525040 /tests/dd/skip-seek-past-file.sh
parentInitial commit. (diff)
downloadcoreutils-a06ac93dcf311dac3943cb5d96ad47625d413c2d.tar.xz
coreutils-a06ac93dcf311dac3943cb5d96ad47625d413c2d.zip
Adding upstream version 8.30.upstream/8.30upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/dd/skip-seek-past-file.sh')
-rwxr-xr-xtests/dd/skip-seek-past-file.sh89
1 files changed, 89 insertions, 0 deletions
diff --git a/tests/dd/skip-seek-past-file.sh b/tests/dd/skip-seek-past-file.sh
new file mode 100755
index 0000000..08bfae5
--- /dev/null
+++ b/tests/dd/skip-seek-past-file.sh
@@ -0,0 +1,89 @@
+#!/bin/sh
+# test diagnostics are printed when seeking too far in seekable files.
+
+# Copyright (C) 2008-2018 Free Software Foundation, Inc.
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU 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 General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
+print_ver_ dd
+require_sparse_support_ # for 'truncate --size=$OFF_T_MAX'
+eval $(getlimits) # for OFF_T limits
+
+
+printf "1234" > file || framework_failure_
+
+echo "\
+dd: 'standard input': cannot skip to specified offset
+0+0 records in
+0+0 records out" > skip_err || framework_failure_
+
+# skipping beyond number of blocks in file should issue a warning
+dd bs=1 skip=5 count=0 status=noxfer < file 2> err || fail=1
+compare skip_err err || fail=1
+
+# skipping beyond number of bytes in file should issue a warning
+dd bs=3 skip=2 count=0 status=noxfer < file 2> err || fail=1
+compare skip_err err || fail=1
+
+# skipping beyond number of blocks in pipe should issue a warning
+cat file | dd bs=1 skip=5 count=0 status=noxfer 2> err || fail=1
+compare skip_err err || fail=1
+
+# skipping beyond number of bytes in pipe should issue a warning
+cat file | dd bs=3 skip=2 count=0 status=noxfer 2> err || fail=1
+compare skip_err err || fail=1
+
+# Check seeking beyond file already offset into
+# skipping beyond number of blocks in file should issue a warning
+(dd bs=1 skip=1 count=0 2>/dev/null &&
+ dd bs=1 skip=4 status=noxfer 2> err) < file || fail=1
+compare skip_err err || fail=1
+
+# Check seeking beyond file already offset into
+# skipping beyond number of bytes in file should issue a warning
+(dd bs=1 skip=1 count=0 2>/dev/null &&
+ dd bs=2 skip=2 status=noxfer 2> err) < file || fail=1
+compare skip_err err || fail=1
+
+# seeking beyond end of file is OK
+dd bs=1 seek=5 count=0 status=noxfer > file 2> err || fail=1
+echo "0+0 records in
+0+0 records out" > err_ok || framework_failure_
+compare err_ok err || fail=1
+
+# skipping > OFF_T_MAX should fail immediately
+dd bs=1 skip=$OFF_T_OFLOW count=0 status=noxfer < file 2> err && fail=1
+# error message should be "... cannot skip: strerror(EOVERFLOW)"
+grep "cannot skip:" err >/dev/null || fail=1
+
+# skipping > max file size should fail immediately
+if ! truncate --size=$OFF_T_MAX in 2>/dev/null; then
+ # truncate is to ensure file system doesn't actually support OFF_T_MAX files
+ dd bs=1 skip=$OFF_T_MAX count=0 status=noxfer < file 2> err \
+ && lseek_ok=yes \
+ || lseek_ok=no
+
+ if test $lseek_ok = yes; then
+ # On Solaris 10 at least, lseek(>max file size) succeeds,
+ # so just check for the skip warning.
+ compare skip_err err || fail=1
+ else
+ # On Linux kernels at least, lseek(>max file size) fails.
+ # error message should be "... cannot skip: strerror(EINVAL)"
+ grep "cannot skip:" err >/dev/null || fail=1
+ fi
+fi
+
+Exit $fail