diff options
author | Paul Eggert <eggert@cs.ucla.edu> | 2016-03-17 11:44:46 -0700 |
---|---|---|
committer | Paul Eggert <eggert@cs.ucla.edu> | 2016-03-17 11:45:34 -0700 |
commit | 1cec27a7f0e5c7bdc44a88ef51af09f87a8cbc24 (patch) | |
tree | 42a2a586cafee14476ea04f44729331e025178dd /tests/write-error-msg | |
parent | 50456e09e0a961bdf8992fa440de1768146e3af9 (diff) | |
download | grep-1cec27a7f0e5c7bdc44a88ef51af09f87a8cbc24.tar.gz |
grep: use errno consistently in write diagnostics
Feature request and initial version reported by Assaf Gordon in:
http://bugs.gnu.org/23031
* NEWS: Document this.
* src/grep.c: Include <stdarg.h>.
(stdout_errno): New static var.
(write_error_seen): Remove; superseded by stdout_errno.
All uses changed.
(putchar_errno, fputs_errno, printf_errno, fwrite_errno)
(fflush_errno): New static functions.
(print_filename, print_sep, print_offset, print_line_head)
(print_line_middle, print_line_tail, prline, prtext, grep)
(grepdesc): Use them.
* tests/write-error-msg: New file.
* tests/Makefile.am (TESTS): Add it.
Diffstat (limited to 'tests/write-error-msg')
-rwxr-xr-x | tests/write-error-msg | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/tests/write-error-msg b/tests/write-error-msg new file mode 100755 index 00000000..130648b9 --- /dev/null +++ b/tests/write-error-msg @@ -0,0 +1,55 @@ +#!/bin/sh +# Ensure that output errors are reported with errno information. + +# Copyright 2016 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 <http://www.gnu.org/licenses/>. + +. "${srcdir=.}/init.sh"; path_prepend_ ../src +test -e /dev/full || skip_ your system lacks /dev/full + +export LC_ALL=C + +# generate large input, filling the libc stdio buffers +# and triggering a write(2) even without line buffering. +yes 12345 | head -n 50000 > in || framework_failure_ + +fail=0 + +# disk-full error, line buffered +# (note: GNU grep returns 2 on error) +returns_ 2 grep --line-buffered -v '^$' <in >/dev/full 2>err1 \ + || framework_failure_ + +# disk-full error, unbuffered +# (note: GNU grep returns 2 on error) +returns_ 2 grep -v '^$' <in >/dev/full 2>err2 \ + || framework_failure_ + +# ensure each error message file contains a 'write error' with additional text +for f in err1 err2 ; +do + grep -Eiq '^grep: write error: [a-z]+' $f \ + || { + warn_ "incorrect/missing error message in file $f" + compare /dev/null $f # print the content in the logs + fail=1 + } +done + +# These messages should be identical +compare err1 err2 \ + || { warn_ "err1,err2 contain different error messages" ; fail=1 ; } + +Exit $fail |