[LinuxBIOS] [patch 5/5] Allow human friendly suffixes for the size option

Enable 'k' and 'm' suffixes to modify the size in a human friendly
way - s 32k is much easier on the brain then -s 32768.

Signed-off-by: Jordan Crouse 
Index: LinuxBIOSv3/util/lar/lar.c
===================================================================
--- LinuxBIOSv3.orig/util/lar/lar.c	2007-07-11 17:40:40.000000000 -0600
+++ LinuxBIOSv3/util/lar/lar.c	2007-07-11 17:41:12.000000000 -0600
@@ -46,7 +46,7 @@
    printf("\nLAR - the LinuxBIOS Archiver " VERSION "\n" COPYRIGHT "\n\n"
           "Usage: %s [-cxal] archive.lar [[[file1] file2] ...]\n\n", name);
    printf("Examples:\n");
-	printf("  lar -c -s 32768 -b bootblock myrom.lar foo nocompress:bar\n");
+	printf("  lar -c -s 32k -b bootblock myrom.lar foo nocompress:bar\n");
    printf("  lar -a myrom.lar foo blob:baz\n");
    printf("  lar -l myrom.lar\n\n");

@@ -61,7 +61,9 @@
    printf("     * Pathname is the name to use in the LAR header.\n\n");

printf("Create options:\n");
-	printf("  -s [size]\tSpecify the size of the archive (in bytes)\n");
+	printf("  -s [size]     \tSpecify the size of the archive.\n");
+	printf("                \tUse a 'k' suffix to multiply the size by 1024 or\n");
+	printf("                \ta 'm' suffix to multiple the size by 1024*1024.\n");
    printf("  -b [bootblock]\tSpecify the bootblock blob\n");
    printf("  -C [lzma|nrv2b]\tSpecify the compression method to use\n\n");

@@ -73,6 +75,29 @@

}

+/* Add a human touch to the LAR size by allowing suffixes:
+ *  XX[KkMm] where k = XX * 1024 and m or M = xx * 1024 * 1024
+ */
+
+static void parse_larsize(char *str)
+{
+	char *p = NULL;
+	unsigned int size = strtoul(str, &p, 0);
+
+	if (p != NULL) {
+		if (*p == 'k' || *p == 'K')
+			size *= 1024;
+		else if (*p == 'm' || *p == 'M')
+			size *= (1024 * 1024);
+		else {
+			fprintf(stderr, "Unknown LAR size suffix %c\n", *p);
+			exit(1);
+		}
+	}
+
+	larsize = size;
+}
+
 int verbose(void)
 {
    return isverbose;
@@ -219,7 +244,7 @@
    		larmode = EXTRACT;
    		break;
    	case 's':
-			larsize = strtol(optarg, (char **)NULL, 10);
+			parse_larsize(optarg);
    		break;
    	case 'b':
    		bootblock = strdup(optarg);