command-line arg support

1 files changed, 21 insertions, 2 deletions

diff --git a/src/help.c b/src/help.c
index d4ce8e4..58e46c9 100644
--- a/src/help.c
+++ b/src/help.c
@@ -1,6 +1,25 @@
 #include "globals.h"
 
-void help_handler(struct player_t *player)
+void print_usage(int argc, char *argv[])
 {
-    printf("not implemented\n");
+    assert(argc > 1);
+
+    printf("Usage: %s [OPTION] [PORTFOLIO]\n", argv[0]);
+    printf("Runs a simulated trading session with PORTFOLIO (creating a new one by default).\n\n");
+
+    printf("Options:\n");
+    printf(" -h, --help\tShow this help and exit\n");
+    printf(" -v, --verbose\tEnable verbose operation\n");
+    printf("     --version\tOutput version information and exit\n");
+}
+
+void print_version(void)
+{
+    printf("market-sim " PROGRAM_VERSION "\n");
+    printf("Copyright (C) 2015 Franklin Wei.\n\n");
+    printf("License GPLv2: GNU GPL version 2 <http://www.gnu.org/licenses/gpl-2.0.html>\n");
+    printf("This program is distributed in the hope that it will be useful, but WITHOUT ANY\n");
+    printf("WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A\n");
+    printf("PARTICULAR PURPOSE.\n");
+    printf("See the GNU General Public License version 2 for more details.\n");
 }