[main]: parse config path argument

main.c

@@ -13,18 +13,67 @@
  * You should have received a copy of the GNU General Public License along with
  * this program. If not, see <https://www.gnu.org/licenses/>.
  */
-#include "config.h"
+#include <stdbool.h>
 #include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
 
-Config globalConfig;
+#define ARG_L_CONFIG_PATH "--config"
+#define ARG_S_CONFIG_PATH "-c"
+
+#define ARG_LEN_L_CONFIG_PATH 8
+#define ARG_LEN_S_CONFIG_PATH 2
+
+char configPath[1024];
+size_t configPathLength = 0;
+
+int parseArguments(int, char**);
+void printHelp(void);
 
 int main(int argc, char** argv)
 {
-    int result = getConfig(argc, argv, &globalConfig);
-    if (result != 0) {
-        return -1;
+    if (parseArguments(argc, argv) != 0) {
+        printHelp();
+        return 0;
     }
 
-    printf("Hello world!\n");
     return 0;
 }
+
+int parseArguments(int argc, char** argv)
+{
+    bool expectConfigPath = false;
+
+    for (int argIndex = 1; argIndex < argc; argIndex++) {
+        const char* arg = argv[argIndex];
+
+        if (expectConfigPath) {
+            size_t length = strlen(arg);
+            if (length > 1024) {
+                return 1;
+            }
+
+            memcpy(configPath, arg, length);
+            configPath[length] = '\0';
+            configPathLength = length + 1;
+
+            printf("Loading config %s\n", configPath);
+            expectConfigPath = false;
+            continue;
+        }
+
+        if (!expectConfigPath && (strncmp(arg, ARG_L_CONFIG_PATH, ARG_LEN_L_CONFIG_PATH) || strncmp(arg, ARG_S_CONFIG_PATH, ARG_LEN_S_CONFIG_PATH))) {
+            printf("Encountered config path argument.\n");
+            expectConfigPath = true;
+        } else {
+            return 1;
+        }
+    }
+
+    return 0;
+}
+
+void printHelp(void)
+{
+    /* TODO */
+}