Mercurial > hg > octave-kai > gnulib-hg
changeset 10485:5bf9ebbeac47
Tests for module 'sigpipe'.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Fri, 26 Sep 2008 13:31:55 +0200 |
parents | b763245277c9 |
children | b0957e8d758c |
files | ChangeLog modules/sigpipe-tests tests/test-sigpipe.c tests/test-sigpipe.sh |
diffstat | 4 files changed, 118 insertions(+), 0 deletions(-) [+] |
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--- a/ChangeLog +++ b/ChangeLog @@ -23,6 +23,10 @@ 2008-09-26 Bruno Haible <bruno@clisp.org> + * modules/sigpipe-tests: New file. + * tests/test-sigpipe.c: New file. + * tests/test-sigpipe.sh: New file. + * modules/write: New file. * lib/unistd.in.h: Include <sys/types.h>. (write): New declaration.
new file mode 100644 --- /dev/null +++ b/modules/sigpipe-tests @@ -0,0 +1,14 @@ +Files: +tests/test-sigpipe.c +tests/test-sigpipe.sh + +Depends-on: +write + +configure.ac: + +Makefile.am: +TESTS += test-sigpipe.sh +TESTS_ENVIRONMENT += EXEEXT='@EXEEXT@' srcdir='$(srcdir)' +check_PROGRAMS += test-sigpipe +
new file mode 100644 --- /dev/null +++ b/tests/test-sigpipe.c @@ -0,0 +1,69 @@ +/* Test of SIGPIPE handling. + Copyright (C) 2008 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, 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, write to the Free Software Foundation, + Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ + +#include <config.h> + +#include <signal.h> + +/* Check that SIGPIPE is defined. */ +int s = SIGPIPE; + +#include <errno.h> +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> + +static void +handler (int sig) +{ + exit (0); +} + +int +main (int argc, char **argv) +{ + char mode = argv[1][0]; + + switch (mode) + { + case 'A': signal (SIGPIPE, SIG_DFL); break; + case 'B': signal (SIGPIPE, SIG_IGN); break; + case 'C': signal (SIGPIPE, handler); break; + } + + /* Produce infinite output. Since it is piped into "head -1", the writes + must ultimately fail. */ + for (;;) + { + char c[2] = { 'y', '\n' }; + int ret = write (1, c, sizeof (c)); + if (ret <= 0) + { + switch (mode) + { + case 'B': /* The write() call should have failed with EPIPE. */ + if (ret < 0 && errno == EPIPE) + exit (0); + /*FALLTHROUGH*/ + case 'A': /* The process should silently die. */ + case 'C': /* The handler should have been called. */ + fprintf (stderr, "write() returned %d with error %d.\n", ret, errno); + exit (1); + } + } + } +}
new file mode 100755 --- /dev/null +++ b/tests/test-sigpipe.sh @@ -0,0 +1,31 @@ +#!/bin/sh + +tmpfiles="" +trap 'rm -fr $tmpfiles' 1 2 3 15 + +# Test signal's default behaviour. +tmpfiles="$tmpfiles t-sigpipeA.tmp" +./test-sigpipe${EXEEXT} A 2> t-sigpipeA.tmp | head -1 > /dev/null +if test -s t-sigpipeA.tmp; then + LC_ALL=C tr -d '\r' < t-sigpipeA.tmp + rm -fr $tmpfiles; exit 1 +fi + +# Test signal's ignored behaviour. +tmpfiles="$tmpfiles t-sigpipeB.tmp" +./test-sigpipe${EXEEXT} B 2> t-sigpipeB.tmp | head -1 > /dev/null +if test -s t-sigpipeB.tmp; then + LC_ALL=C tr -d '\r' < t-sigpipeB.tmp + rm -fr $tmpfiles; exit 1 +fi + +# Test signal's behaviour when a handler is installed. +tmpfiles="$tmpfiles t-sigpipeC.tmp" +./test-sigpipe${EXEEXT} B 2> t-sigpipeC.tmp | head -1 > /dev/null +if test -s t-sigpipeC.tmp; then + LC_ALL=C tr -d '\r' < t-sigpipeC.tmp + rm -fr $tmpfiles; exit 1 +fi + +rm -fr $tmpfiles +exit 0