working userland with some invoke syscalls

1 files changed, 25 insertions, 0 deletions

diff --git a/boot/bootargs.c b/boot/bootargs.c
new file mode 100644
index 0000000..81ba57d
--- /dev/null
+++ b/boot/bootargs.c
@@ -0,0 +1,25 @@
+#include "bootargs.h"
+#include "boot.h"
+#include "string.h"
+#include <stdint.h>
+#include "print.h"
+
+char*
+bootargs_getarg(const char *key)
+{
+    size_t keylen = strlen(key);
+    char *arg = jove_bootargs;
+    for(; (uintptr_t)arg < (uintptr_t)jove_bootargs + jove_bootargs_len; arg += strlen(arg) + 1) {
+        size_t arglen = strlen(arg);
+        if(arglen < keylen) continue;
+
+        for(size_t i = 0; i < keylen; i++) {
+            if(arg[i] != key[i]) goto eol;
+        }
+        if(arg[keylen] != '=') continue;
+        return arg + keylen + 1;
+eol:
+        continue;
+    }
+    return NULL;
+}