cmake,options: Allow to set global bind config file

This allows the global bind configuration file path to be set in
configuration time by defining the GLOBAL_BIND_CONFIG when calling
cmake.  If no value is defined, the default path is set as
"/etc/ssh/libssh_server_config".

usage example:

$ cmake -DGLOBAL_BIND_CONFIG=/etc/my/custom/path ..

Signed-off-by: Anderson Toshiyuki Sasaki <ansasaki@redhat.com>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>

CMakeLists.txt

@@ -243,5 +243,8 @@ message(STATUS "Benchmarks: ${WITH_BENCHMARKS}")
 message(STATUS "Symbol versioning: ${WITH_SYMBOL_VERSIONING}")
 message(STATUS "Allow ABI break: ${WITH_ABI_BREAK}")
 message(STATUS "Release is final: ${WITH_FINAL}")
+if (WITH_SERVER)
+message(STATUS "Global bind config: ${GLOBAL_BIND_CONFIG}")
+endif()
 message(STATUS "********************************************")
 

DefineOptions.cmake

@@ -49,3 +49,7 @@ endif (WITH_NACL)
 if (WITH_ABI_BREAK)
   set(WITH_SYMBOL_VERSIONING ON)
 endif (WITH_ABI_BREAK)
+
+if (NOT GLOBAL_BIND_CONFIG)
+  set(GLOBAL_BIND_CONFIG "/etc/ssh/libssh_server_config")
+endif (NOT GLOBAL_BIND_CONFIG)

config.h.cmake

@@ -12,6 +12,9 @@
 #cmakedefine BINARYDIR "${BINARYDIR}"
 #cmakedefine SOURCEDIR "${SOURCEDIR}"
 
+/* Global bind configuration file path */
+#cmakedefine GLOBAL_BIND_CONFIG "${GLOBAL_BIND_CONFIG}"
+
 /************************** HEADER FILES *************************/
 
 /* Define to 1 if you have the <argp.h> header file. */

src/options.c

@@ -2018,8 +2018,7 @@ int ssh_bind_options_parse_config(ssh_bind sshbind, const char *filename)
     /* If the global default configuration hasn't been processed yet, process it
      * before the provided configuration. */
     if (!(sshbind->config_processed)) {
-        rc = ssh_bind_config_parse_file(sshbind,
+        rc = ssh_bind_config_parse_file(sshbind, GLOBAL_BIND_CONFIG);
-                                        "/etc/ssh/libssh_server_config");
         if (rc != 0) {
             return rc;
         }