1 files changed, 39 insertions, 0 deletions
diff --git a/src/bin/src/proc/global/store.c b/src/bin/src/proc/global/store.c
new file mode 100644
index 0000000..da7657e
--- /dev/null
+++ b/src/bin/src/proc/global/store.c
@@ -0,0 +1,39 @@
+/*
+ * wnix, a Unix-like operating system for WebAssembly applications.
+ * Copyright (C) 2025  Xavier Del Campo Romero
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <bin/proc.h>
+#include <bin/types.h>
+#include <kprintf.h>
+#include <stddef.h>
+#include <string.h>
+
+int bin_proc_g_store(const unsigned long pos, const void *const src,
+    const size_t n, void *const user)
+{
+    struct bin_proc *const p = user;
+    struct bin_global *const g = &p->global;
+
+    if (n > g->sz || pos > g->sz - n)
+    {
+        kprintf("%s: out-of-bounds access to global memory\n", p->path);
+        return -1;
+    }
+
+    memcpy((char *)g->buf + pos, src, n);
+    return n;
+}