[libvirt] [PATCH] Check getenv("PATH") for NULL in virFindFileInPath

[Matthias Bolte]

2010/6/11 Daniel P. Berrange <berrange at redhat.com>:
> On Thu, Jun 10, 2010 at 10:42:56PM +0200, Matthias Bolte wrote:
>> Otherwise this will segfault if PATH is not defined.
>>
>> Reported by Emre Erenoglu
>> ---
>>  src/util/util.c |    5 ++++-
>>  1 files changed, 4 insertions(+), 1 deletions(-)
>>
>> diff --git a/src/util/util.c b/src/util/util.c
>> index 34cfc21..445fd4e 100644
>> --- a/src/util/util.c
>> +++ b/src/util/util.c
>> @@ -1213,6 +1213,7 @@ int virFileResolveLink(const char *linkpath,
>>   */
>>  char *virFindFileInPath(const char *file)
>>  {
>> +    char *path;
>>      char pathenv[PATH_MAX];
>>      char *penv = pathenv;
>>      char *pathseg;
>> @@ -1232,7 +1233,9 @@ char *virFindFileInPath(const char *file)
>>      }
>>
>>      /* copy PATH env so we can tweak it */
>> -    if (virStrcpyStatic(pathenv, getenv("PATH")) == NULL)
>> +    path = getenv("PATH");
>> +
>> +    if (path == NULL || virStrcpyStatic(pathenv, path) == NULL)
>>          return NULL;
>>
>>      /* for each path segment, append the file to search for and test for
>
> ACK
>
>
> Daniel
>

Thanks, pushed.

Matthias