[libvirt] [PATCH 2/6] util: new virFileRelLinkPointsTo function
Eric Blake
eblake at redhat.com
Sat Apr 12 02:01:03 UTC 2014
On 04/11/2014 01:11 PM, John Ferlan wrote:
>> +++ b/src/util/virfile.h
>> @@ -144,6 +144,9 @@ int virFileStripSuffix(char *str,
>>
>> int virFileLinkPointsTo(const char *checkLink,
>> const char *checkDest);
>> +int virFileRelLinkPointsTo(const char *directory,
>> + const char *checkLink,
>> + const char *checkDest);
>
> Should there be a ATTRIBUTE_NONNULL(1,2,3) here?? Probably same for
> PointsTo argument 1...
Just copying existing style, but you are correct that it makes sense for
2 and 3. For 1, NULL is permitted if checkLink is absolute.
> ACK in general though
Squashing this and pushing:
diff --git i/src/util/virfile.c w/src/util/virfile.c
index 10c4337..3eb2703 100644
--- i/src/util/virfile.c
+++ w/src/util/virfile.c
@@ -1398,6 +1398,12 @@ virFileRelLinkPointsTo(const char *directory,
if (*checkLink == '/')
return virFileLinkPointsTo(checkLink, checkDest);
+ if (!directory) {
+ virReportError(VIR_ERR_INTERNAL_ERROR,
+ _("cannot resolve '%s' without starting directory"),
+ checkLink);
+ return -1;
+ }
if (virAsprintf(&candidate, "%s/%s", directory, checkLink) < 0)
return -1;
ret = virFileLinkPointsTo(candidate, checkDest);
diff --git i/src/util/virfile.h w/src/util/virfile.h
index 168eb0d..46ef781 100644
--- i/src/util/virfile.h
+++ w/src/util/virfile.h
@@ -143,10 +143,12 @@ int virFileStripSuffix(char *str,
const char *suffix) ATTRIBUTE_RETURN_CHECK;
int virFileLinkPointsTo(const char *checkLink,
- const char *checkDest);
+ const char *checkDest)
+ ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2);
int virFileRelLinkPointsTo(const char *directory,
const char *checkLink,
- const char *checkDest);
+ const char *checkDest)
+ ATTRIBUTE_NONNULL(2) ATTRIBUTE_NONNULL(3);
int virFileResolveLink(const char *linkpath,
char **resultpath) ATTRIBUTE_RETURN_CHECK;
--
Eric Blake eblake redhat com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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