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Re: [Libguestfs] [PATCH] NFC: Cleanup iteration over fstab entries in inspect_fs_unix.c



On 11/24/2011 07:13 PM, Richard W.M. Jones wrote:
On Thu, Nov 24, 2011 at 02:48:46PM +0000, Matthew Booth wrote:
Select non-comment labels using an augeas path to return the correct nodes in
the first instance, rather than applying a regular expression to all results.
Iterate over returned matches using a char** iterator.
Use asprintf() to ensure the path string buffer is the correct size.

In general this is an obvious improvement.

+  for (char **entry = entries; *entry != NULL; entry++) {
+    if (asprintf (&augpath, "%s/spec", *entry) == -1) g->abort_cb();

We have a safe_asprintf function defined already, and it would be
better to use that.

Is augpath supposed to be freed on the non-error path?

spec and mp should be freed on the error path, but don't seem to be at
the moment.

I was mis-remembering the definition of asprintf(). I thought it was doing a realloc() on the buffer you passed in, but reading it again I don't see that. I'll respin it.

Matt
--
Matthew Booth, RHCA, RHCSS
Red Hat Engineering, Virtualisation Team

GPG ID:  D33C3490
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