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Message-Id: <20210821085420.474615-3-hi@alyssa.is>
Date: Sat, 21 Aug 2021 08:54:19 +0000
From: Alyssa Ross <hi@...ssa.is>
To: musl@...ts.openwall.com
Cc: Alyssa Ross <hi@...ssa.is>
Subject: [PATCH libc-test 2/3] functional: add mntent test for single-field line
Glibc only requires a single field to be present in an fstab line to
parse it, and will initialize all other string fields to the empty
string. This test checks for that behaviour.
---
I'm providing this test as a seperate patch to make it easy to pass on
this test while still accepting the rest, because I'm not sure whether
it's a good thing or not for Musl to allow fstab lines like this, even
though Glibc does.
src/functional/mntent.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/src/functional/mntent.c b/src/functional/mntent.c
index 59d816a..caa7d33 100644
--- a/src/functional/mntent.c
+++ b/src/functional/mntent.c
@@ -31,6 +31,18 @@ void test_getmntent_empty(void)
ASSERT(endmntent(f) == 1);
}
+void test_getmntent_short(void)
+{
+ char fstab[] = "1\n";
+ FILE *f = fmemopen((void *)fstab, sizeof fstab - 1, "r");
+ if (!f) ERR("fmemopen");
+ struct mntent *m = getmntent(f);
+ ASSERT(m);
+ ASSERT(!strcmp(m->mnt_fsname, "1"));
+ ASSERT(!*m->mnt_dir);
+ ASSERT(endmntent(f) == 1);
+}
+
void test_getmntent(void)
{
// Checks that the fifth and sixth fields default to 0.
@@ -71,6 +83,7 @@ void test_getmntent_r(void)
int main(void)
{
test_getmntent_empty();
+ test_getmntent_short();
test_getmntent();
test_getmntent_r();
}
--
2.32.0
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