initial commit. working on tasking

1 files changed, 65 insertions, 0 deletions

diff --git a/boot/cmdline.c b/boot/cmdline.c
new file mode 100644
index 0000000..06a6169
--- /dev/null
+++ b/boot/cmdline.c
@@ -0,0 +1,65 @@
+#include "config.h"
+#include "cmdline.h"
+#include <stddef.h>
+#include "lib/string.h"
+#include "lib/printf.h"
+
+const char *s_cmdline = NULL;
+
+struct kvpair
+{
+    const char *key, *value;
+} s_arguments[CMDLINE_MAX_ARGUMENTS] = { 0 };
+size_t s_numargs = 0;
+
+void
+cmdline_init(char *cmdline)
+{
+    s_cmdline = cmdline;
+    size_t last_arg = 0;
+    const char *arg = cmdline;
+
+    for(char *s = cmdline; *s; s++) {
+        if(*s == '=') {
+            *(s++) = 0;
+            s_arguments[last_arg].key = arg;
+            arg = s;
+            for(; *s && (*s != ' '); s++) {
+                if(*s == '"') {
+                    s++;
+                    for(; *s && (*s != '"'); s++);
+                    s++;
+                }
+            }
+            *(s++) = 0;
+            s_arguments[last_arg++].value = arg;
+            arg = s;
+        }
+    }
+    s_numargs = last_arg;
+}
+
+void
+cmdline_print()
+{
+    for(size_t i = 0; i < s_numargs; i++) {
+        const char *arg_key = s_arguments[i].key;
+        const char *arg_value = s_arguments[i].value;
+
+        kprintf("cmdline: %s=%s\n", arg_key, arg_value);
+    }
+}
+
+const char*
+cmdline_getarg(const char *key)
+{
+    for(size_t i = 0; i < s_numargs; i++) {
+        const char *arg_key = s_arguments[i].key;
+        const char *arg_value = s_arguments[i].value;
+
+        if(strncmp(arg_key, key, strlen(arg_key)) == 0) {
+            return arg_value;
+        }
+    }
+    return NULL;
+}