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util/cutils: Let qemu_strtosz*() optionally reject trailing crap

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Change the qemu_strtosz() & friends to return -EINVAL when @endptr is
null and the conversion doesn't consume the string completely.
Matches how qemu_strtol() & friends work.

Only test_qemu_strtosz_simple() passes a null @endptr.  No functional
change there, because its conversion consumes the string.

Simplify callers that use @endptr only to fail when it doesn't point
to '\0' to pass a null @endptr instead.

Cc: Dr. David Alan Gilbert <dgilbert@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com> (maintainer:X86)
Cc: Kevin Wolf <kwolf@redhat.com> (supporter:Block layer core)
Cc: Max Reitz <mreitz@redhat.com> (supporter:Block layer core)
Cc: qemu-block@nongnu.org (open list:Block layer core)
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <1487708048-2131-22-git-send-email-armbru@redhat.com>
This commit is contained in:
Markus Armbruster 2017-02-21 21:14:05 +01:00
parent 606caa0a2a
commit 4fcdf65ae2
8 changed files with 25 additions and 31 deletions
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6
tests/test-cutils.c
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@ -1510,10 +1510,16 @@ static void test_qemu_strtosz_trailing(void)
g_assert_cmpint(res, ==, 123 * M_BYTE);
g_assert(endptr == str + 3);
res = qemu_strtosz(str, NULL);
g_assert_cmpint(res, ==, -EINVAL);
str = "1kiB";
res = qemu_strtosz(str, &endptr);
g_assert_cmpint(res, ==, 1024);
g_assert(endptr == str + 2);
res = qemu_strtosz(str, NULL);
g_assert_cmpint(res, ==, -EINVAL);
}
static void test_qemu_strtosz_erange(void)