libgit2: fix for broken SSH host callback (JuliaLang#39364)

Author: StefanKarpinski

deps/Versions.make

@@ -33,7 +33,7 @@ CURL_JLL_NAME := LibCURL
 LAPACK_VER := 3.9.0
 
 # LibGit2
-LIBGIT2_JLL_VER := 1.2.1+0
+LIBGIT2_JLL_VER := 1.2.2+0
 LIBGIT2_JLL_NAME := LibGit2
 
 # LibSSH2

deps/checksums/LibGit2.v1.2.2+0.x86_64-apple-darwin.tar.gz/md5

@@ -0,0 +1 @@
+693080c66702c9ff106b0935f01d1f96

deps/checksums/LibGit2.v1.2.2+0.x86_64-apple-darwin.tar.gz/sha512

@@ -0,0 +1 @@
+f21d5846b443188a0c604255dce77603ea861db8d4c6fc55cebd5db6da07e94ae40f0a165221c95e13db9df8777fddb05f55c865f554f45e56cd442332a95336

deps/patches/libgit2-hostkey.patch

@@ -18,7 +18,7 @@ index e8cd2d180..54293cd31 100644
 
  /**
 diff --git a/src/transports/ssh.c b/src/transports/ssh.c
-index f4ed05bb1..049697796 100644
+index f4ed05bb1..ec6366a5f 100644
 --- a/src/transports/ssh.c
 +++ b/src/transports/ssh.c
 @@ -523,6 +523,7 @@ static int _git_ssh_setup_conn(
@@ -47,7 +47,7 @@ index f4ed05bb1..049697796 100644
  		cert_ptr = &cert;
 
 -		error = t->owner->certificate_check_cb((git_cert *) cert_ptr, 0, urldata.host, t->owner->message_cb_payload);
-+		if (git_net_url_is_default_port(&urldata)) {
++		if (atoi(urldata.port) == SSH_DEFAULT_PORT) {
 +			host_and_port = urldata.host;
 +		} else {
 +			size_t n = strlen(urldata.host) + strlen(urldata.port) + 2;

stdlib/LibGit2/src/callbacks.jl

@@ -440,14 +440,15 @@ end
 function ssh_knownhost_check(
     files :: AbstractVector{<:AbstractString},
     host  :: AbstractString,
-    key   :: String,
+    key   :: Vector{UInt8},
 )
     if (m = match(r"^(.+):(\d+)$", host)) !== nothing
         host = m.captures[1]
         port = parse(Int, m.captures[2])
     else
         port = 22 # default SSH port
     end
+    len = length(key)
     mask = Consts.LIBSSH2_KNOWNHOST_TYPE_PLAIN |
            Consts.LIBSSH2_KNOWNHOST_KEYENC_RAW
     session = @ccall "libssh2".libssh2_session_init_ex(
@@ -471,13 +472,12 @@ function ssh_knownhost_check(
             @ccall "libssh2".libssh2_knownhost_free(hosts::Ptr{Cvoid})::Cvoid
             continue
         end
-        size = ncodeunits(key)
         check = @ccall "libssh2".libssh2_knownhost_checkp(
             hosts  :: Ptr{Cvoid},
             host   :: Cstring,
             port   :: Cint,
             key    :: Ptr{UInt8},
-            size   :: Csize_t,
+            len    :: Csize_t,
             mask   :: Cint,
             C_NULL :: Ptr{Ptr{KnownHost}},
         ) :: Cint

stdlib/LibGit2/test/libgit2.jl

@@ -2412,11 +2412,11 @@ mktempdir() do dir
             CHECK_FAILURE  = LibGit2.Consts.LIBSSH2_KNOWNHOST_CHECK_FAILURE
 
             # randomly generated hashes matching no hosts
-            random_key = "\0\0\0\assh-rsa\0\0\0\x01#\0\0\0\x81\0¿\x95\xbe9\xfc9g\n:\xcf&\x06YA\xb5`\x97\xc13A\xbf;T+C\xc9Ut J>\xc5ҍ\xc4_S\x8a \xc1S\xeb\x15FH\xd2a\x04.D\xeeb\xac\x8f\xdb\xcc\xef\xc4l G\x9bR\xafp\x17s<=\x12\xab\x04ڳif\\A\x9ba0\xde%\xdei\x04\xc3\r\xb3\x81w\x88\xec\xc0f\x15A;AÝ\xc0r\xa1\u5fe\xd3\xf6)8\x8e\xa3\xcbc\xee\xdd\$\x04\x0f\xc1\xb4\x1f\xcc\xecK\xe0\x99"
+            random_key = "\0\0\0\assh-rsa\0\0\0\x01#\0\0\0\x81\0¿\x95\xbe9\xfc9g\n:\xcf&\x06YA\xb5`\x97\xc13A\xbf;T+C\xc9Ut J>\xc5ҍ\xc4_S\x8a \xc1S\xeb\x15FH\xd2a\x04.D\xeeb\xac\x8f\xdb\xcc\xef\xc4l G\x9bR\xafp\x17s<=\x12\xab\x04ڳif\\A\x9ba0\xde%\xdei\x04\xc3\r\xb3\x81w\x88\xec\xc0f\x15A;AÝ\xc0r\xa1\u5fe\xd3\xf6)8\x8e\xa3\xcbc\xee\xdd\$\x04\x0f\xc1\xb4\x1f\xcc\xecK\xe0\x99" |> codeunits |> collect
             # hashes of the unique github.com fingerprint
-            github_key = "\0\0\0\assh-rsa\0\0\0\x01#\0\0\x01\x01\0\xab`;\x85\x11\xa6vy\xbd\xb5@\xdb;\xd2\x03K\0J\xe96\xd0k\xe3\xd7`\xf0\x8f˪\xdbN\xb4\xedóǑ\xc7\n\xae\x9at\xc9Xi\xe4wD!«\xea\x92\xe5T0_8\xb5\xfdAK2\b\xe5t\xc37\xe3 \x93e\x18F,vRɋ1\xe1n}\xa6R;\xd2\0t*dD\xd8?\xcd^\x172\xd06sǷ\x81\x15UH{U\xf0\xc4IO8)\xec\xe6\x0f\x94%Z\x95˚\xf57\xd7\xfc\x8c\x7f\xe4\x9e\xf3\x18GN\xf2\x92\t\x92\x05\"e\xb0\xa0n\xa6mJ\x16\x7f\xd9\xf3\xa4\x8a\x1aJ0~\xc1\xea\xaaQI\xa9i\xa6\xac]V\xa5\xefb~Q}\x81\xfbdO[t\\OG\x8e\xcd\b*\x94\x92\xf7D\xaa\xd3&\xf7l\x8cM\xc9\x10\vƫyF\x1d&W\xcbo\x06\xde\xc9.kd\xa6V/\xf0\xe3 \x84\xea\x06\xce\x0e\xa9\xd3ZX;\xfb\0\xbaӌ\x9d\x19p<T\x98\x92\xe5\xaaxܕ\xe2PQ@i"
+            github_key = "\0\0\0\assh-rsa\0\0\0\x01#\0\0\x01\x01\0\xab`;\x85\x11\xa6vy\xbd\xb5@\xdb;\xd2\x03K\0J\xe96\xd0k\xe3\xd7`\xf0\x8f˪\xdbN\xb4\xedóǑ\xc7\n\xae\x9at\xc9Xi\xe4wD!«\xea\x92\xe5T0_8\xb5\xfdAK2\b\xe5t\xc37\xe3 \x93e\x18F,vRɋ1\xe1n}\xa6R;\xd2\0t*dD\xd8?\xcd^\x172\xd06sǷ\x81\x15UH{U\xf0\xc4IO8)\xec\xe6\x0f\x94%Z\x95˚\xf57\xd7\xfc\x8c\x7f\xe4\x9e\xf3\x18GN\xf2\x92\t\x92\x05\"e\xb0\xa0n\xa6mJ\x16\x7f\xd9\xf3\xa4\x8a\x1aJ0~\xc1\xea\xaaQI\xa9i\xa6\xac]V\xa5\xefb~Q}\x81\xfbdO[t\\OG\x8e\xcd\b*\x94\x92\xf7D\xaa\xd3&\xf7l\x8cM\xc9\x10\vƫyF\x1d&W\xcbo\x06\xde\xc9.kd\xa6V/\xf0\xe3 \x84\xea\x06\xce\x0e\xa9\xd3ZX;\xfb\0\xbaӌ\x9d\x19p<T\x98\x92\xe5\xaaxܕ\xe2PQ@i" |> codeunits |> collect
             # hashes of the middle github.com fingerprint
-            gitlab_key = "\0\0\0\vssh-ed25519\0\0\0 \a\xee\br\x95N:\xae\xc6\xfbz\bέtn\x12.\x9dA\xb6\x7f\xe79\xe1\xc7\x13\x95\x0e\xcd\x17_"
+            gitlab_key = "\0\0\0\vssh-ed25519\0\0\0 \a\xee\br\x95N:\xae\xc6\xfbz\bέtn\x12.\x9dA\xb6\x7f\xe79\xe1\xc7\x13\x95\x0e\xcd\x17_" |> codeunits |> collect
 
             # various known hosts files
             no_file = tempname()