Update command line parser

yunkya2 · yunkya2 · commit c04c51ff8dbd · 2025-09-28T18:46:22.000+09:00
diff --git a/httpsget.c b/httpsget.c
@@ -273,26 +273,79 @@ char* extract_html_body(char *response) {
 
 /****************************************************************************/
 
+void help(const char *name)
+{
+    printf(
+        "httpsget.x - HTTPS simple client for X68000\n"
+        "Usage: %s [options] [URL]\n"
+        "Options:\n"
+        "  -h, --help           Show this help message and exit\n"
+        "  -H, --show-header    Show HTTP response header\n"
+        "  -r, --raw            Display raw HTML without parsing\n"
+    , name);
+    exit(0);
+}
+
 int main(int argc, char **argv)
 {
     int client_fd;
     struct sockaddr_in server_addr;
     struct hostent *host_entry;
-    char *hostname = NULL;
+    char hostname[256] = {0};
+    char *url = NULL;
     char *path = NULL;
     int port = 0;
     int bytes_sent;
+    int show_header = 0;
+    int raw_mode = 0;
+    int http_mode = 0;
 
-    // デフォルト値のリセット（オプション処理後）
-    hostname = "www.yahoo.co.jp";
     path = "/";
     port = 443;
 
-    if (argc >= 2) {
-        hostname = argv[1];
+    for (int i = 1; i < argc; i++) {
+        if (strcmp(argv[i], "-h") == 0 || strcmp(argv[i], "--help") == 0) {
+            help(argv[0]);
+        } else if (strcmp(argv[i], "-H") == 0 || strcmp(argv[i], "--show-header") == 0) {
+            show_header = 1;
+        } else if (strcmp(argv[i], "-r") == 0 || strcmp(argv[i], "--raw") == 0) {
+            raw_mode = 1;
+        } else if (argv[i][0] == '-') {
+            fprintf(stderr, "Error: Unknown option %s\n", argv[i]);
+            return 1;
+        } else if (url == NULL) {
+            url = argv[i];
+
+            if (strncmp(url, "http://", 7) == 0) {
+                http_mode = 1;
+                url += 7;
+                port = 80;
+            } else if (strncmp(url, "https://", 8) == 0) {
+                url += 8;
+                port = 443;
+            }
+
+            char *slash = strchr(url, '/');
+            if (slash) {
+                path = slash;
+            } else {
+                slash = strchr(url, '\0');
+            }
+            memcpy(hostname, url, slash - url);
+            hostname[slash - url] = '\0';
+            if (strrchr(hostname, ':')) {
+                char *colon = strrchr(hostname, ':');
+                *colon = '\0';
+                port = atoi(colon + 1);
+            }
+        } else {
+            fprintf(stderr, "Error: Too many arguments\n");
+            return 1;
+        }
     }
-    if (argc >= 3) {
-        path = argv[2];
+
+    if (url == NULL) {
+        help(argv[0]);
     }
 
     printf("Connecting to %s:%d%s\n", hostname, port, path);
