gpg: Change armor Version header to emit only the major version.

* g10/options.h (opt): Rename field no_version to emit_version.
* g10/gpg.c (main): Init opt.emit_vesion to 1.  Change --emit-version
to bump up opt.emit_version.
* g10/armor.c (armor_filter): Implement different --emit-version
values.
--

GnuPG-bug-id: 1572
Signed-off-by: Werner Koch <wk@gnupg.org>

NEWS

@@ -26,6 +26,9 @@ Noteworthy changes in version 2.1.0-betaN (unreleased)
 
  * Fixed bug with deeply nested compressed packets.
 
+ * Only the major version number is by default included in the armored
+   output.
+
 
 Noteworthy changes in version 2.1.0beta3 (2011-12-20)
 -----------------------------------------------------

doc/gpg.texi

@@ -2408,8 +2408,12 @@ protected by the signature.
 @item --emit-version
 @itemx --no-emit-version
 @opindex emit-version
-Force inclusion of the version string in ASCII armored output.
+Force inclusion of the version string in ASCII armored output.  If
-@option{--no-emit-version} disables this option.
+given once only the name of the program and the major number is
+emitted (default), given twice the minor is also emitted, given triple
+the micro is added, and given quad an operating system identification
+is also emitted.  @option{--no-emit-version} disables the version
+line.
 
 @item --sig-notation @code{name=value}
 @itemx --cert-notation @code{name=value}

g10/armor.c

@@ -1077,10 +1077,24 @@ armor_filter( void *opaque, int control,
 	    iobuf_writestr(a, head_strings[afx->what] );
 	    iobuf_writestr(a, "-----" );
 	    iobuf_writestr(a,afx->eol);
-	    if( !opt.no_version )
+	    if (opt.emit_version)
 	      {
-		iobuf_writestr(a, "Version: "GNUPG_NAME" v"  VERSION " ("
+		iobuf_writestr (a, "Version: "GNUPG_NAME" v");
-			       PRINTABLE_OS_NAME ")" );
+                for (s=VERSION; *s && *s != '.'; s++)
+                  iobuf_writebyte (a, *s);
+                if (opt.emit_version > 1 && *s)
+                  {
+                    iobuf_writebyte (a, *s++);
+                    for (; *s && *s != '.'; s++)
+                      iobuf_writebyte (a, *s);
+                    if (opt.emit_version > 2)
+                      {
+                        for (; *s && *s != '-' && !spacep (s); s++)
+                          iobuf_writebyte (a, *s);
+                        if (opt.emit_version > 3)
+                          iobuf_writestr (a, " (" PRINTABLE_OS_NAME ")");
+                      }
+                  }
 		iobuf_writestr(a,afx->eol);
 	      }
 

g10/gpg.c

@@ -2013,6 +2013,7 @@ main (int argc, char **argv)
     opt.def_cert_expire = "0";
     set_homedir (default_homedir ());
     opt.passphrase_repeat = 1;
+    opt.emit_version = 1; /* Limit to the major number.  */
 
     /* Check whether we have a config file on the command line.  */
     orig_argc = argc;
@@ -2318,8 +2319,8 @@ main (int argc, char **argv)
           case oQuickRandom:
             gcry_control (GCRYCTL_ENABLE_QUICK_RANDOM, 0);
             break;
-	  case oEmitVersion: opt.no_version=0; break;
+	  case oEmitVersion: opt.emit_version++; break;
-	  case oNoEmitVersion: opt.no_version=1; break;
+	  case oNoEmitVersion: opt.emit_version=0; break;
 	  case oCompletesNeeded: opt.completes_needed = pargs.r.ret_int; break;
 	  case oMarginalsNeeded: opt.marginals_needed = pargs.r.ret_int; break;
 	  case oMaxCertDepth: opt.max_cert_depth = pargs.r.ret_int; break;

g10/options.h

@@ -91,7 +91,11 @@ struct
   int def_cert_level;
   int min_cert_level;
   int ask_cert_level;
-  int no_version;
+  int emit_version;       /* 0 = none,
+                             1 = major only,
+                             2 = major and minor,
+                             3 = full version,
+                             4 = full version plus OS string. */
   int marginals_needed;
   int completes_needed;
   int max_cert_depth;