[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[PATCH] sleep,timeout: support overflowing floating point values
From: |
Pádraig Brady |
Subject: |
[PATCH] sleep,timeout: support overflowing floating point values |
Date: |
Wed, 20 Apr 2016 18:31:39 +0100 |
* src/sleep.c (main): Allow ERANGE since we allow "inf" values.
* src/timeout.c (parse_duration): Likewise.
* tests/misc/sleep.sh: New file. Tests for sleep(1).
* tests/misc/timeout-parameters.sh: Add case for newly allowed
$LDBL_MAX. Also use returns_ throughout the file. Also avoid
small timeout values which might give false failures under load.
---
src/sleep.c | 2 +-
src/timeout.c | 2 +-
tests/local.mk | 1 +
tests/misc/sleep.sh | 38 ++++++++++++++++++++++++++++++++++++++
tests/misc/timeout-parameters.sh | 26 ++++++++++++--------------
5 files changed, 53 insertions(+), 16 deletions(-)
create mode 100755 tests/misc/sleep.sh
diff --git a/src/sleep.c b/src/sleep.c
index a865c76..acee3bb 100644
--- a/src/sleep.c
+++ b/src/sleep.c
@@ -124,7 +124,7 @@ main (int argc, char **argv)
{
double s;
const char *p;
- if (! xstrtod (argv[i], &p, &s, c_strtod)
+ if (! (xstrtod (argv[i], &p, &s, c_strtod) || errno == ERANGE)
/* Nonnegative interval. */
|| ! (0 <= s)
/* No extra chars after the number and an optional s,m,h,d char. */
diff --git a/src/timeout.c b/src/timeout.c
index 9c31df5..462ef6b 100644
--- a/src/timeout.c
+++ b/src/timeout.c
@@ -314,7 +314,7 @@ parse_duration (const char* str)
double duration;
const char *ep;
- if (!xstrtod (str, &ep, &duration, c_strtod)
+ if (! (xstrtod (str, &ep, &duration, c_strtod) || errno == ERANGE)
/* Nonnegative interval. */
|| ! (0 <= duration)
/* No extra chars after the number and an optional s,m,h,d char. */
diff --git a/tests/local.mk b/tests/local.mk
index a83c3d0..424f460 100644
--- a/tests/local.mk
+++ b/tests/local.mk
@@ -333,6 +333,7 @@ all_tests = \
tests/misc/shred-size.sh \
tests/misc/shuf.sh \
tests/misc/shuf-reservoir.sh \
+ tests/misc/sleep.sh \
tests/misc/sort.pl \
tests/misc/sort-benchmark-random.sh \
tests/misc/sort-compress.sh \
diff --git a/tests/misc/sleep.sh b/tests/misc/sleep.sh
new file mode 100755
index 0000000..38d6913
--- /dev/null
+++ b/tests/misc/sleep.sh
@@ -0,0 +1,38 @@
+#!/bin/sh
+# Validate sleep parameters
+
+# Copyright (C) 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=.}/tests/init.sh"; path_prepend_ ./src
+print_ver_ sleep
+getlimits_
+
+# invalid timeouts
+returns_ 1 timeout 10 sleep invalid || fail=1
+returns_ 1 timeout 10 sleep -- -1 || fail=1
+returns_ 1 timeout 10 sleep 42D || fail=1
+returns_ 1 timeout 10 sleep 42d 42D || fail=1
+
+# subsecond actual sleep
+timeout 10 sleep 0.001 || fail=1
+
+# Small timeouts for larger sleeps racy,
+# but false positives should be avoided on most systems
+returns_ 124 timeout 0.1 sleep 1d 2h 3s 4m || fail=1
+returns_ 124 timeout 0.1 sleep inf || fail=1
+returns_ 124 timeout 0.1 sleep $LDBL_MAX || fail=1
+
+Exit $fail
diff --git a/tests/misc/timeout-parameters.sh b/tests/misc/timeout-parameters.sh
index 14c9b66..28e7c15 100755
--- a/tests/misc/timeout-parameters.sh
+++ b/tests/misc/timeout-parameters.sh
@@ -24,16 +24,13 @@ getlimits_
# internal errors are 125, distinct from execution failure
# invalid timeout
-timeout invalid sleep 0
-test $? = 125 || fail=1
+returns_ 125 timeout invalid sleep 0 || fail=1
# invalid kill delay
-timeout --kill-after=invalid 1 sleep 0
-test $? = 125 || fail=1
+returns_ 125 timeout --kill-after=invalid 1 sleep 0 || fail=1
# invalid timeout suffix
-timeout 42D sleep 0
-test $? = 125 || fail=1
+returns_ 125 timeout 42D sleep 0 || fail=1
# It was seen on 32 bit Linux/HPPA that a kernel time_t overflowed,
# thus causing the timer to fire immediately.
@@ -50,24 +47,25 @@ if test $? != 124; then
# floating point notation
timeout 2.34e+5d sleep 0 || fail=1
+
+ # floating point overflow
+ timeout $LDBL_MAX sleep 0 || fail=1
+ returns_ 125 timeout -- -$LDBL_MAX sleep 0 || fail=1
fi
# floating point notation
-timeout 2.34 sleep 0 || fail=1
+timeout 10.34 sleep 0 || fail=1
# nanoseconds potentially supported
-timeout .999999999 sleep 0 || fail=1
+timeout 9.999999999 sleep 0 || fail=1
# invalid signal spec
-timeout --signal=invalid 1 sleep 0
-test $? = 125 || fail=1
+returns_ 125 timeout --signal=invalid 1 sleep 0 || fail=1
# invalid command
-timeout 10 .
-test $? = 126 || fail=1
+returns_ 126 timeout 10 . || fail=1
# no such command
-timeout 10 no_such
-test $? = 127 || fail=1
+returns_ 127 timeout 10 no_such || fail=1
Exit $fail
--
2.5.5
- [PATCH] sleep,timeout: support overflowing floating point values,
Pádraig Brady <=