DiskTool - Actual help message :)

diff --git a/Tools/DiskTool/main.c b/Tools/DiskTool/main.c
index 81a087c..f8781a4 100644 (file)
--- a/Tools/DiskTool/main.c
+++ b/Tools/DiskTool/main.c
@@ -8,6 +8,31 @@
 #include <disktool_common.h>
 
 // === CODE ===
+void PrintUsage(void)
+{
+       fprintf(stderr,
+               "Usage:\n"
+               " disktool <commands...>\n"
+               "\n"
+               "Commands:\n"
+               " lvm <image> <ident>\n"
+               " - Register an image with LVM\n"
+               "  e.g.\n"
+               "   `lvm ../AcessHDD.img HDD`\n"
+               " mount <image> <mountname>\n"
+               " - Bind an image to a name.\n"
+               "  e.g.\n"
+               "   `mount ../AcessFDD.img FDD`\n"
+               "   `mount :HDD/0 hda1`\n"
+               " ls <dir>\n"
+               " - List a directory\n"
+               "  e.g.\n"
+               "   `ls ../`\n"
+               "   `ls FDD:/`\n"
+               "\n"
+               );
+}
+
 int main(int argc, char *argv[])
 {
        // Parse arguments
@@ -17,6 +42,7 @@ int main(int argc, char *argv[])
                        // Mount an image
                        if( argc - i < 3 ) {
                                fprintf(stderr, "mount takes 2 arguments (image and mountpoint)\n");
+                               PrintUsage();
                                exit(-1);
                        }
 
@@ -33,6 +59,7 @@ int main(int argc, char *argv[])
                        
                        if( argc - i < 3 ) {
                                fprintf(stderr, "lvm takes 2 arguments (iamge and ident)\n");
+                               PrintUsage();
                                exit(-1);
                        }
 
@@ -48,6 +75,7 @@ int main(int argc, char *argv[])
                if( strcmp("ls", argv[i]) == 0 ) {
                        if( argc - i < 2 ) {
                                fprintf(stderr, "ls takes 1 argument (path)\n");
+                               PrintUsage();
                                break;
                        }
 
@@ -60,6 +88,7 @@ int main(int argc, char *argv[])
                        
                        if( argc - i < 3 ) {
                                fprintf(stderr, "cp takes 2 arguments (source and destination)\n");
+                               PrintUsage();
                                break;
                        }
 
@@ -73,6 +102,7 @@ int main(int argc, char *argv[])
 
                        if( argc - 1 < 2 ) {
                                fprintf(stderr, "cat takes 1 argument (path)\n");
+                               PrintUsage();
                                break;
                        }
 
@@ -83,6 +113,7 @@ int main(int argc, char *argv[])
                }
        
                fprintf(stderr, "Unknown command '%s'\n", argv[i]);
+               PrintUsage();
        }
        
        DiskTool_Cleanup();