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authorTom Gundersen <teg@jklm.no>2015-10-06 11:57:53 +0200
committerTom Gundersen <teg@jklm.no>2015-10-06 11:57:53 +0200
commit3d366432c160c211cc99165316024df3757166ef (patch)
tree48388d8d8dd0d0288397bbe8db39ab25fda7c5f5 /src/libsystemd
parentedf4126f60561cc6236e46d07f4845dbc6935fa2 (diff)
parenta9ec9f29420623133c419ddc8864921a824751fb (diff)
Merge pull request #1466 from kaysievers/wip
libsystemd: sd-device - translate / vs. ! in sysname
Diffstat (limited to 'src/libsystemd')
-rw-r--r--src/libsystemd/sd-device/sd-device.c18
1 files changed, 15 insertions, 3 deletions
diff --git a/src/libsystemd/sd-device/sd-device.c b/src/libsystemd/sd-device/sd-device.c
index c528a157c1..e46546ed91 100644
--- a/src/libsystemd/sd-device/sd-device.c
+++ b/src/libsystemd/sd-device/sd-device.c
@@ -295,15 +295,27 @@ _public_ int sd_device_new_from_subsystem_sysname(sd_device **ret, const char *s
} else
return -EINVAL;
} else {
- syspath = strjoina("/sys/subsystem/", subsystem, "/devices/", sysname);
+ char *name;
+ size_t len = 0;
+
+ /* translate sysname back to sysfs filename */
+ name = strdupa(sysname);
+ while (name[len] != '\0') {
+ if (name[len] == '/')
+ name[len] = '!';
+
+ len ++;
+ }
+
+ syspath = strjoina("/sys/subsystem/", subsystem, "/devices/", name);
if (access(syspath, F_OK) >= 0)
return sd_device_new_from_syspath(ret, syspath);
- syspath = strjoina("/sys/bus/", subsystem, "/devices/", sysname);
+ syspath = strjoina("/sys/bus/", subsystem, "/devices/", name);
if (access(syspath, F_OK) >= 0)
return sd_device_new_from_syspath(ret, syspath);
- syspath = strjoina("/sys/class/", subsystem, "/", sysname);
+ syspath = strjoina("/sys/class/", subsystem, "/", name);
if (access(syspath, F_OK) >= 0)
return sd_device_new_from_syspath(ret, syspath);
}