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basic/path-util: do not say that /dev and /sys are device paths

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"/dev" or "/dev/" is the mount point, not a device path. In particular,
'systemctl status /dev' clearly does not refer to a device, so let's tweak
the code a bit to say that those are not device paths.

(Treating "/../dev" same as "/dev" would be also be reasonable, but that
requires chase(), which requires disk access, which we don't want to do from
this lightweight function.)
This commit is contained in:
Zbigniew Jędrzejewski-Szmek
2023-09-18 14:09:32 +02:00
parent bf9a49a553
commit 8f1998b8d3
2 changed files with 23 additions and 16 deletions
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src/test/test-path-util.c
+14 -14
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@@ -99,18 +99,18 @@ TEST(is_device_path) {
assert_se(!is_device_path(""));
assert_se(!is_device_path(".."));
assert_se( is_device_path("/dev"));
assert_se( is_device_path("/./dev"));
assert_se( is_device_path("/./dev/."));
assert_se(!is_device_path("/dev"));
assert_se(!is_device_path("/./dev"));
assert_se(!is_device_path("/./dev/."));
assert_se(!is_device_path("/./dev."));
assert_se( is_device_path("/./dev/foo"));
assert_se( is_device_path("/./dev/./foo"));
assert_se(!is_device_path("/./dev./foo"));
assert_se( is_device_path("//dev"));
assert_se( is_device_path("///dev"));
assert_se( is_device_path("/dev/"));
assert_se( is_device_path("///dev/"));
assert_se( is_device_path("/./dev/"));
assert_se(!is_device_path("//dev"));
assert_se(!is_device_path("///dev"));
assert_se(!is_device_path("/dev/"));
assert_se(!is_device_path("///dev/"));
assert_se(!is_device_path("/./dev/"));
assert_se(!is_device_path("/../dev/"));
assert_se( is_device_path("/dev/sda"));
assert_se( is_device_path("/dev/sda5"));
@@ -120,10 +120,10 @@ TEST(is_device_path) {
assert_se(!is_device_path("/../../dev/sda5"));
assert_se(!is_device_path("/../../../dev/sda5b3"));
assert_se(!is_device_path("/.././.././dev/sda5b3/idontexit"));
assert_se( is_device_path("/sys"));
assert_se( is_device_path("/sys/"));
assert_se( is_device_path("/./sys"));
assert_se( is_device_path("/./sys/."));
assert_se(!is_device_path("/sys"));
assert_se(!is_device_path("/sys/"));
assert_se(!is_device_path("/./sys"));
assert_se(!is_device_path("/./sys/."));
assert_se(!is_device_path("/./sys."));
assert_se( is_device_path("/./sys/foo"));
assert_se( is_device_path("/./sys/./foo"));
@@ -131,8 +131,8 @@ TEST(is_device_path) {
assert_se( is_device_path("/sys/what"));
assert_se( is_device_path("/sys/something/.."));
assert_se( is_device_path("/sys/something/../"));
assert_se( is_device_path("/sys////"));
assert_se( is_device_path("/sys////."));
assert_se(!is_device_path("/sys////"));
assert_se(!is_device_path("/sys////."));
assert_se( is_device_path("/sys/.."));
assert_se( is_device_path("/sys/../"));
assert_se(!is_device_path("/usr/../dev/sda"));