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* include: ssp: round out fortification of current set of headersKyle Evans2024-07-131-0/+5
| | | | | | | | | | | | | | | | | | | | ssp/ssp.h needed some improvements: - `len` isn't always a size_t, it may need casted - In some cases we may want to use a len that isn't specified as a parameter (e.g., L_ctermid), so __ssp_redirect() should be more flexible. - In other cases we may want additional checking, so pull all of the declaration bits out of __ssp_redirect_raw() so that some functions can implement the body themselves. strlcat/strlcpy should be the last of the fortified functions that get their own __*_chk symbols, and these cases are only done to be consistent with the rest of the str*() set. Reviewed by: markj Sponsored by: Klara, Inc. Sponsored by: Stormshield Differential Revision: https://reviews.freebsd.org/D45679
* ssp: appease -Wgnu-statement-expression-from-macro-expansionKyle Evans2024-05-141-2/+2
| | | | | | | | | | | | | | | It's a stupid warning, but some ports enable it by default and were already defining _FORTIFY_SOURCE, thus exposing the new macros immediately. This at least fixes the libfido2 build, perhaps others as well. While we're here, fix a fresh build of stand w/ FORTIFY_SOURCE enabled by not pulling in the ssp headers if _STANDALONE is defined. We do not have runtime support in libsa as of the time of writing. Reported by: netchild Sponsored by: Stormshield Sponsored by: Klara, Inc.
* Import _FORTIFY_SOURCE implementation from NetBSDKyle Evans2024-05-131-0/+67
This is a mostly-unmodified copy of the various *_chk implementations and headers from NetBSD, without yet modifying system headers to start actually including them. A future commit will also apply the needed bits to fix ssp/unistd.h. Reviewed by: imp, pauamma_gundo.com (both previous versions), kib Sponsored by: Stormshield Sponsored by: Klara, Inc. Differential Revision: https://reviews.freebsd.org/D32306