libssh2: convert over to use dynbuf

In my very basic test that lists sftp://127.0.0.1/tmp/, this patched
code makes 161 allocations compared to 194 in git master. A 17%
reduction.

Closes #5336

1 files changed, 4 insertions, 2 deletions

diff --git a/lib/vssh/ssh.h b/lib/vssh/ssh.h
index 0d4ee521d..9e49993e9 100644
--- a/lib/vssh/ssh.h
+++ b/lib/vssh/ssh.h
@@ -134,9 +134,7 @@ struct ssh_conn {
                                  quote command fails) */
   char *homedir;              /* when doing SFTP we figure out home dir in the
                                  connect phase */
-  size_t readdir_len, readdir_totalLen, readdir_currLen;
   char *readdir_line;
-  char *readdir_linkPath;
   /* end of READDIR stuff */
 
   int secondCreateDirs;         /* counter use by the code to see if the
@@ -147,6 +145,8 @@ struct ssh_conn {
   int orig_waitfor;             /* default READ/WRITE bits wait for */
 
 #if defined(USE_LIBSSH)
+  char *readdir_linkPath;
+  size_t readdir_len, readdir_totalLen, readdir_currLen;
 /* our variables */
   unsigned kbd_state; /* 0 or 1 */
   ssh_key privkey;
@@ -168,6 +168,8 @@ struct ssh_conn {
   const char *readdir_longentry;
   char *readdir_tmp;
 #elif defined(USE_LIBSSH2)
+  struct dynbuf readdir_link;
+  struct dynbuf readdir;
   char *readdir_filename;
   char *readdir_longentry;