* frontend/scanimage.c, doc/scanimage.man: make -B (buffer-size)

selectable, and make long name consistent. (#309672 by Johannes Berg)

ChangeLog

@@ -1,3 +1,7 @@
+2009-03-13  m. allan noah <kitno455 a t gmail d o t com>
+	* frontend/scanimage.c, doc/scanimage.man: make -B (buffer-size) 
+	selectable, and make long name consistent. (#309672 by Johannes Berg)
+
 2009-03-13  m. allan noah <kitno455 a t gmail d o t com>
 	* tools/sane-desc.c: remove 8859-1 chars from string cleaner,
 	enforce only printable ASCII on output

doc/scanimage.man

@@ -28,7 +28,8 @@ scanimage \- scan an image
 .RB [ \-T | \-\-test ]
 .RB [ \-h | \-\-help ]
 .RB [ \-v | \-\-verbose ]
-.RB [ \-B | \-\-buffersize ]
+.RB [ \-B | \-\-buffer-size
+.RI [= size ]]
 .RB [ \-V | \-\-version ]
 .RI [ device\-specific\-options ]
 .SH DESCRIPTION
@@ -252,10 +253,8 @@ level.
 The
 .B \-B
 or
-.B \-\-buffersize
-option changes the input buffersize that
-.B scanimage
-uses from default 32*1024 to 1024*1024 kbytes.
+.B \-\-buffer-size
+changes the input buffer size from 32KB to the number kB specified or 1M.
 .PP
 The
 .B \-V

frontend/scanimage.c

@@ -88,7 +88,7 @@ static struct option basic_options[] = {
   {"progress", no_argument, NULL, 'p'},
   {"test", no_argument, NULL, 'T'},
   {"version", no_argument, NULL, 'V'},
-  {"buffer_size", no_argument, NULL, 'B'},
+  {"buffer-size", optional_argument, NULL, 'B'},
   {"batch", optional_argument, NULL, 'b'},
   {"batch-count", required_argument, NULL, OPTION_BATCH_COUNT},
   {"batch-start", required_argument, NULL, OPTION_BATCH_START_AT},
@@ -105,7 +105,7 @@ static struct option basic_options[] = {
 #define OUTPUT_PNM      0
 #define OUTPUT_TIFF     1
 
-#define BASE_OPTSTRING	"d:hi:Lf:nvBVTbp"
+#define BASE_OPTSTRING	"d:hi:Lf:B::nvVTbp"
 #define STRIP_HEIGHT	256	/* # lines we increment image height */
 
 static struct option *all_options;
@@ -1718,7 +1718,10 @@ main (int argc, char **argv)
           progress = 1;
 	  break;
 	case 'B':
-	  buffer_size = (1024 * 1024);
+          if (optarg)
+	    buffer_size = 1024 * atoi(optarg);
+          else
+	    buffer_size = (1024 * 1024);
 	  break;
 	case 'T':
 	  test = 1;
@@ -1919,7 +1922,7 @@ Parameters are separated by a blank from single-character options (e.g.\n\
 -T, --test                 test backend thoroughly\n\
 -h, --help                 display this help message and exit\n\
 -v, --verbose              give even more status messages\n\
--B, --buffer-size          change default input buffersize\n\
+-B, --buffer-size=#        change input buffer size (in kB, default 32)\n\
 -V, --version              print version information\n");
     }