test

2026-07-20 01:53:04 +02:00
commit e71245c082
149 changed files with 8571 additions and 0 deletions
@@ -0,0 +1,102 @@
+#include <stddef.h>
+#include <stdlib.h>
+#include <string.h>
+#include <zinnia/cmdline.h>
+#include <zinnia/init.h>
+
+// Defined in linker script.
+extern const struct cmdline_option* __ld_cmdline_start[];
+extern const struct cmdline_option* __ld_cmdline_end[];
+
+static char cmdline_buf[0x1000];
+
+[[__init]]
+void cmdline_parse(const char* cmdline) {
+    const size_t len = strnlen(cmdline, sizeof(cmdline_buf) - 1);
+    size_t idx = 0;
+    memcpy(cmdline_buf, cmdline, len);
+
+    while (1) {
+        const struct cmdline_option** opt = __ld_cmdline_start;
+        char* name = nullptr;
+        char* value = nullptr;
+
+        // Skip all leading spaces.
+        while (idx < len && cmdline_buf[idx] == ' ')
+            idx++;
+        if (idx >= len)
+            break;
+        size_t name_idx = idx;
+        name = cmdline_buf + name_idx;
+
+        // Find the next equal sign or space.
+        while (idx < len && cmdline_buf[idx] != '=' && cmdline_buf[idx] != ' ')
+            idx++;
+        if (idx > len)
+            break;
+
+        // Check if the option has a value (=foo).
+        char seperator = cmdline_buf[idx];
+        cmdline_buf[idx++] = 0;
+        if (seperator == '=') {
+            // Check if we need to escape the value.
+            char check;
+            if (cmdline_buf[idx] == '"') {
+                check = '"';
+                cmdline_buf[idx++] = 0;
+            } else {
+                check = ' ';
+            }
+
+            value = cmdline_buf + idx;
+
+            // Skip the value.
+            while (idx < len && cmdline_buf[idx] != check)
+                idx++;
+            if (idx > len)
+                break;
+            cmdline_buf[idx++] = 0;
+        }
+
+        // Find the corresponding option.
+        while (opt < __ld_cmdline_end) {
+            const struct cmdline_option* current = *opt;
+            if (!strcmp(current->name, name)) {
+                switch (current->option_type) {
+                case CMDLINE_STRING:
+                    current->func_str(value);
+                    break;
+                case CMDLINE_BOOL:
+                    if (!strcmp(value, "on") || !strcmp(value, "yes") || !strcmp(value, "true") || !strcmp(value, "1"))
+                        current->func_bool(true);
+                    else
+                        current->func_bool(false);
+                    break;
+                case CMDLINE_INTPTR: {
+                    int base = 10;
+                    if (!strncmp(value, "0x", 2)) {
+                        base = 0x10;
+                        value += 2;
+                    }
+                    current->func_intptr(atol(value, base));
+                    break;
+                }
+                case CMDLINE_UINTPTR: {
+                    int base = 10;
+                    if (!strncmp(value, "0x", 2)) {
+                        base = 0x10;
+                        value += 2;
+                    }
+                    current->func_uintptr(atolu(value, base));
+                    break;
+                }
+                }
+                break;
+            }
+            opt++;
+        }
+
+        if (idx >= len)
+            break;
+    }
+}