[GNUnet-SVN] [gnurl] 143/220: ssh: add a generic Curl_ssh_version function for SSH backends

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ng0 pushed a commit to branch master
in repository gnurl.

commit ea28a6cb2f168ce0b4e01c0f05e3675687dbd497
Author: Daniel Stenberg <address@hidden>
AuthorDate: Fri Aug 16 15:32:05 2019 +0200

    ssh: add a generic Curl_ssh_version function for SSH backends
    
    Closes #4235
---
 lib/ssh.h          |  8 ++++++--
 lib/version.c      | 32 ++++++++------------------------
 lib/vssh/libssh.c  |  5 +++++
 lib/vssh/libssh2.c |  4 ++++
 4 files changed, 23 insertions(+), 26 deletions(-)

diff --git a/lib/ssh.h b/lib/ssh.h
index 96bb64099..3213c5a52 100644
--- a/lib/ssh.h
+++ b/lib/ssh.h
@@ -239,12 +239,16 @@ extern const struct Curl_handler Curl_handler_sftp;
 
 extern const struct Curl_handler Curl_handler_scp;
 extern const struct Curl_handler Curl_handler_sftp;
+#endif /* USE_LIBSSH2 */
 
+#ifdef USE_SSH
+/* generic SSH backend functions */
 CURLcode Curl_ssh_init(void);
 void Curl_ssh_cleanup(void);
-
+size_t Curl_ssh_version(char *buffer, size_t buflen);
 #else
+/* for non-SSH builds */
 #define Curl_ssh_cleanup()
-#endif /* USE_LIBSSH2 */
+#endif
 
 #endif /* HEADER_CURL_SSH_H */
diff --git a/lib/version.c b/lib/version.c
index afad726d8..ae2b09d31 100644
--- a/lib/version.c
+++ b/lib/version.c
@@ -54,18 +54,6 @@
 #include <librtmp/rtmp.h>
 #endif
 
-#ifdef USE_LIBSSH2
-#include <libssh2.h>
-#endif
-
-#ifdef HAVE_LIBSSH2_VERSION
-/* get it run-time if possible */
-#define CURL_LIBSSH2_VERSION libssh2_version(0)
-#else
-/* use build-time if run-time not possible */
-#define CURL_LIBSSH2_VERSION LIBSSH2_VERSION
-#endif
-
 #ifdef HAVE_ZLIB_H
 #include <zlib.h>
 #ifdef __SYMBIAN32__
@@ -173,13 +161,12 @@ char *curl_version(void)
   left -= len;
   ptr += len;
 #endif
-#ifdef USE_LIBSSH2
-  len = msnprintf(ptr, left, " libssh2/%s", CURL_LIBSSH2_VERSION);
-  left -= len;
-  ptr += len;
-#endif
-#ifdef USE_LIBSSH
-  len = msnprintf(ptr, left, " libssh/%s", CURL_LIBSSH_VERSION);
+#ifdef USE_SSH
+  if(left) {
+    *ptr++=' ';
+    left--;
+  }
+  len = Curl_ssh_version(ptr, left);
   left -= len;
   ptr += len;
 #endif
@@ -458,11 +445,8 @@ curl_version_info_data *curl_version_info(CURLversion 
stamp)
 #endif /* _LIBICONV_VERSION */
 #endif
 
-#if defined(USE_LIBSSH2)
-  msnprintf(ssh_buffer, sizeof(ssh_buffer), "libssh2/%s", LIBSSH2_VERSION);
-  version_info.libssh_version = ssh_buffer;
-#elif defined(USE_LIBSSH)
-  msnprintf(ssh_buffer, sizeof(ssh_buffer), "libssh/%s", CURL_LIBSSH_VERSION);
+#if defined(USE_SSH)
+  Curl_ssh_version(ssh_buffer, sizeof(ssh_buffer));
   version_info.libssh_version = ssh_buffer;
 #endif
 
diff --git a/lib/vssh/libssh.c b/lib/vssh/libssh.c
index d8186e0b2..76956a3c1 100644
--- a/lib/vssh/libssh.c
+++ b/lib/vssh/libssh.c
@@ -2739,4 +2739,9 @@ void Curl_ssh_cleanup(void)
   (void)ssh_finalize();
 }
 
+size_t Curl_ssh_version(char *buffer, size_t buflen)
+{
+  return msnprintf(buffer, buflen, "libssh/%s", CURL_LIBSSH_VERSION);
+}
+
 #endif                          /* USE_LIBSSH */
diff --git a/lib/vssh/libssh2.c b/lib/vssh/libssh2.c
index 011f1ecf3..2b25a514f 100644
--- a/lib/vssh/libssh2.c
+++ b/lib/vssh/libssh2.c
@@ -3338,5 +3338,9 @@ void Curl_ssh_cleanup(void)
 #endif
 }
 
+size_t Curl_ssh_version(char *buffer, size_t buflen)
+{
+  return msnprintf(buffer, buflen, "libssh2/%s", LIBSSH2_VERSION);
+}
 
 #endif /* USE_LIBSSH2 */

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