Hi Laine, I believe [0] might be of interest to you.
Cheers, Raphael [0] https://github.com/hercules-team/augeas/commit/3fb6543af886bf3de8e21b0b8b8fc30877826e89 On Fri, Dec 5, 2014 at 7:02 PM, Laine Stump <[email protected]> wrote: > I want to sanitize the path sent to aug_get(aug, path, &result) (and > probably other functions, and it's not clear to me what characters are > considered "special", nor how to escape them in the string. An example > of this, let's say I want to know the mac address of a user-supplied > network interface, so I do this: > > sprintf(&path, "/files/sys/class/net/%s/address/content", intf) > > r = aug_match(aug, path, &mac); > > If the interface name contains special characters interpreted by > aug_match's "xpath-like" parser, then I won't necessarily get back the > results I expected. > > So what I would like to do is precede this with a call to > "aug_escape(intf, &sanitized_intf)" which would escape any characters > having a special meaning to augeas. An API in augeas would be very nice, > but since that doesn't exist, can someone point me at some documentation > that is easier to understand than the comments in augeas.c? :-o > > > ========== Side Topic > > One person suggested creating an augeas variable whose value was the > contents of intf, then referencing that variable in the path sent to > aug_match(); unfortunately, having a path string like this: > > /files/sys/class/net/$interface/address/content > > seems to never work. For that matter, defining a variable that contains > the entire path, then calling aug_get(aug, "$interface", &mac) doesn't > even do what I want - variable substitution does work when the *entire > path string* is "$variableName", but the xpath-like evaluation still > takes place, so the special characters are still interpreted and acted on. > > > _______________________________________________ > augeas-devel mailing list > [email protected] > https://www.redhat.com/mailman/listinfo/augeas-devel > -- Raphaël Pinson Infrastructure Developer & Training Leader +33 479 26 57 93 +33 781 90 00 79 Camptocamp France Savoie Technolac BP 352 48, avenue du Lac du Bourget 73372 Le Bourget du Lac, Cedex www.camptocamp.com
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