glibc/include/arpa, branch master

Fix all the remaining misspellings -- BZ 25337

2023-06-02T01:39:48Z

resolv: Remove _STRING_ARCH_unaligned usage

2023-02-17T18:56:54Z

GCC with default implementation already generates optimized code. Checked on x86_64-linux-gnu and i686-linux-gnu. Reviewed-by: Wilco Dijkstra

resolv: Add DNS packet parsing helpers geared towards wire format

2022-08-30T08:02:49Z

The public parser functions around the ns_rr record type produce textual domain names, but usually, this is not what we need while parsing DNS packets within glibc. This commit adds two new helper functions, __ns_rr_cursor_init and __ns_rr_cursor_next, for writing packet parsers, and struct ns_rr_cursor, struct ns_rr_wire as supporting types. In theory, it is possible to avoid copying the owner name into the rname field in __ns_rr_cursor_next, but this would need more functions that work on compressed names. Eventually, __res_context_send could be enhanced to preserve the result of the packet parsing that is necessary for matching the incoming UDP packets, so that this works does not have to be done twice. Reviewed-by: Siddhesh Poyarekar

resolv: Add internal __ns_name_length_uncompressed function

2022-08-30T08:02:49Z

This function is useful for checking that the question name is uncompressed (as it should be). Reviewed-by: Siddhesh Poyarekar

resolv: Add the __ns_samebinaryname function

2022-08-30T08:02:49Z

During packet parsing, only the binary name is available. If the name equality check is performed before conversion to text, we can sometimes skip the last step. Reviewed-by: Siddhesh Poyarekar

resolv: Move ns_samename into its own file, and into libc

2021-07-19T05:56:21Z

But only as an internal symbol, __libc_ns_samename. The libresolv ABI is preserved. This is because the function is deprecated, and it does not make sense to add new symbol versions for deprecated functions. Also reformat the implementation to GNU style. Reviewed-by: Carlos O'Donell Tested-by: Carlos O'Donell

resolv: Move ns_makecanon into its own file, and into libc

2021-07-19T05:56:21Z

But only as an internal symbol, __libc_ns_makecanon. The libresolv ABI is preserved. This is because the function is deprecated, and it does not make sense to add new symbol versions for deprecated functions. Also reformat the implementation to GNU style. Reviewed-by: Carlos O'Donell Tested-by: Carlos O'Donell

resolv: Move ns_name_compress into its own file and into libc

2021-07-19T05:56:21Z

And reformat to GNU style. The symbol was moved using scripts/move-symbol-to-libc.py. Reviewed-by: Carlos O'Donell Tested-by: Carlos O'Donell

resolv: Move ns_name_pack into its own file and into libc

2021-07-19T05:56:21Z

And reformat to GNU style, and eliminate the labellen function. The symbol was moved using scripts/move-symbol-to-libc.py. Reviewed-by: Carlos O'Donell Tested-by: Carlos O'Donell

resolv: Move ns_name_pton into its own file and into libc

2021-07-19T05:56:21Z

And reformat to GNU style, and eliminate the digits variable. The symbol was moved using scripts/move-symbol-to-libc.py. Reviewed-by: Carlos O'Donell Tested-by: Carlos O'Donell