From 851d501c2f8e9378417472aa8e083bddb6a59450 Mon Sep 17 00:00:00 2001
From: Patrick McDermott <patrick.mcdermott@libiquity.com>
Date: Wed, 19 Apr 2023 16:33:12 -0400
Subject: main: Handle options

Missing: -h, -V, and -?
---
(limited to 'src/main.c')

diff --git a/src/main.c b/src/main.c
index 1201330..94fed74 100644
--- a/src/main.c
+++ b/src/main.c
@@ -22,45 +22,130 @@
 #include "opk.h"
 #include "ustar.h"
 
+#include "config.h"
+
+#ifdef HAVE_GETOPT_LONG
+#include <getopt.h>
+#else
+#include <unistd.h>
+#endif
+
+const char *_optstring = "I:fchV";
+#ifdef HAVE_GETOPT_LONG
+struct option _longopts[] = {
+	{
+		.name    = "info",
+		.has_arg = 1,
+		.flag    = NULL,
+		.val     = 'I',
+	},
+	{
+		.name    = "control",
+		.has_arg = 0,
+		.flag    = NULL,
+		.val     = 'f',
+	},
+	{
+		.name    = "contents",
+		.has_arg = 0,
+		.flag    = NULL,
+		.val     = 'c',
+	},
+	{
+		.name    = "help",
+		.has_arg = 0,
+		.flag    = NULL,
+		.val     = 'h',
+	},
+	{
+		.name    = "version",
+		.has_arg = 0,
+		.flag    = NULL,
+		.val     = 'V',
+	},
+};
+#endif
+
 int
 main(int argc, char *argv[])
 {
 	struct opkg_opk_ustar_seek_name *control_files;
+	int                              list_members;
+	int                              opt;
 	struct opkg_opk_opk             *opk;
 
 	control_files = NULL;
-	if (opkg_opk_ustar_add_seek_name(&control_files, "control") !=
-			OPKG_OPK_OK) {
-		goto error0;
-	}
-	if (opkg_opk_ustar_add_seek_name(&control_files, "md5sums") !=
-			OPKG_OPK_OK) {
-		goto error0;
+	list_members  = 0;
+#ifdef HAVE_GETOPT_LONG
+	while ((opt = getopt_long(argc, argv, _optstring, _longopts, NULL))
+			!= -1) {
+#else
+	while ((opt = getopt(argc, argv, _optstring)) != -1) {
+#endif
+		switch(opt) {
+			case 'I':
+				if (opkg_opk_ustar_add_seek_name(&control_files,
+							optarg) !=
+						OPKG_OPK_OK) {
+					goto error0;
+				}
+				break;
+			case 'f':
+				if (opkg_opk_ustar_add_seek_name(&control_files,
+							"control") !=
+						OPKG_OPK_OK) {
+					goto error0;
+				}
+				break;
+			case 'c':
+				list_members = 1;
+				break;
+			case 'h':
+				/* TODO */
+				break;
+			case 'V':
+				/* TODO */
+				break;
+			default:
+				/* TODO */
+				break;
+		}
 	}
+	argc -= optind;
+	argv += optind;
 
 	/* Initialize outer archive. */
-	opk = opkg_opk_opk_init(argv[1]);
+	opk = opkg_opk_opk_init(argv[0]);
 	if (opk == NULL) {
 		goto error0;
 	}
 
 	/* Read control file. */
-	if (opkg_opk_opk_read_control(opk, control_files) != OPKG_OPK_OK) {
-		goto error1;
+	if (control_files != NULL) {
+		if (opkg_opk_opk_read_control(opk, control_files) !=
+				OPKG_OPK_OK) {
+			goto error1;
+		}
 	}
 
 	/* List data files. */
-	if (opkg_opk_opk_list_members(opk) != OPKG_OPK_OK) {
-		goto error1;
+	if (list_members == 1) {
+		if (opkg_opk_opk_list_members(opk) != OPKG_OPK_OK) {
+			goto error1;
+		}
 	}
 
 	opkg_opk_opk_free(opk);
-	opkg_opk_ustar_free_seek_names(control_files);
+	if (control_files != NULL) {
+		opkg_opk_ustar_free_seek_names(control_files);
+	}
 	return EXIT_SUCCESS;
 
  error1:
 	opkg_opk_opk_free(opk);
  error0:
-	opkg_opk_ustar_free_seek_names(control_files);
+	if (control_files != NULL) {
+		opkg_opk_ustar_free_seek_names(control_files);
+	}
 	return EXIT_FAILURE;
 }
--
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