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Utility functions to get the algorithm from a public key.

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Every time I've had to do this before, I've always done the three-line
dance of initialising a BinarySource and calling get_string on it.
It's long past time I wrapped that up into a convenient subroutine.
This commit is contained in:
Simon Tatham
2022-04-21 11:00:16 +01:00
parent e7d51505c7
commit a5c0205b87
5 changed files with 21 additions and 11 deletions
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5
cmdgen.c
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@ -1280,9 +1280,8 @@ int main(int argc, char **argv)
} else {
assert(ssh2blob);
BinarySource src[1];
BinarySource_BARE_INIT_PL(src, ptrlen_from_strbuf(ssh2blob));
ptrlen algname = get_string(src);
ptrlen algname = pubkey_blob_to_alg_name(
ptrlen_from_strbuf(ssh2blob));
const ssh_keyalg *alg = find_pubkey_alg_len(algname);
if (!alg) {
fprintf(stderr, "puttygen: cannot extract key components "