1 files changed, 48 insertions, 0 deletions
diff --git a/src/commandline/commands/help.c b/src/commandline/commands/help.c
new file mode 100644
index 000000000..30ab96231
--- /dev/null
+++ b/src/commandline/commands/help.c
@@ -0,0 +1,48 @@
+#include "command.h"
+#include "console.h"
+#include <string.h>
+#include <gpxe/tables.h>
+
+static struct command cmd_start[0] __table_start ( commands );
+static struct command cmd_end[0] __table_end ( commands );
+
+void help_req(){}
+
+static int cmd_help_exec ( int argc, char **argv ) {
+
+	struct command *ccmd;
+	int unknown = 1;
+	if(argc == 1){
+		printf("Built in commands:\n\n\texit, quit\t\tExit the command line and boot\n\nCompiled in commands:\n\n");
+
+		for ( ccmd = cmd_start ; ccmd < cmd_end ; ccmd++ ) {
+			printf ("\t%s\t\t%s\n", ccmd->name, ccmd->desc );
+		}
+	}else{
+		if(!strcmp(argv[1], "exit") || !strcmp(argv[1], "quit")){
+			printf("exit, quit - The quit command\n\nUsage:\nquit or exit\n\n\tExample:\n\t\texit\n");
+		}else{
+			for ( ccmd = cmd_start ; ccmd < cmd_end ; ccmd++ ) {
+				if(!strcmp(ccmd->name, argv[1])){
+					unknown = 0;
+					printf ("\t%s - %s\n\nUsage:\n%s\n", ccmd->name, ccmd->desc, ccmd->usage );
+					break;
+				}
+			}
+			if(unknown){
+				printf("\"%s\" isn't compiled in (does it exist?).\n", argv[1]);
+			}
+		}
+		
+	}
+	return 0;
+}
+
+struct command help_command __command = {
+	.name = "help",
+	.usage = "help <command>\n\n\tExample:\n\t\thelp help\n",
+	.desc = "The help command",
+	.exec = cmd_help_exec,
+};
+
+