From 2033721c220ff176b53d4a121fe2b00a48a6a0ab Mon Sep 17 00:00:00 2001
From: Emile Clark-Boman <eclarkboman@gmail.com>
Date: Fri, 19 Sep 2025 14:58:43 +1000
Subject: [PATCH] add basic read syscall wrappers for terminfo db

---
 src/read.c | 51 +++++++++++++++++++++++++++++++++++++++++++++++++++
 src/read.h |  6 ++++++
 2 files changed, 57 insertions(+)
 create mode 100644 src/read.c
 create mode 100644 src/read.h

diff --git a/src/read.c b/src/read.c
new file mode 100644
index 0000000..e9091e0
--- /dev/null
+++ b/src/read.c
@@ -0,0 +1,51 @@
+#include <fcntl.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <sys/stat.h>
+
+#include "read.h"
+
+static struct ti_db {
+  const char *restrict const file;
+  // const FILE *restrict const stream;
+  const long size;
+};
+
+/*
+ * Returns 0 on success, else 1 on failure and sets errno.
+ */
+static inline int fsize(FILE *restrict const stream, long *restrict const size,
+          const bool offset) {
+  long initpos = (offset) ? ftell(stream) : 0L;
+
+  if (fseek(stream, 0L, SEEK_END))
+    return 1;
+  *size = ftell(stream);
+  if (offset && fseek(stream, initpos, SEEK_SET))
+    return 1;
+
+  return 0;
+}
+
+/* Read the entire file at once to avoid half a million individual read syscalls.
+ */
+static inline int freaddb(const char *restrict const file, char *restrict *restrict const db,
+            long *restrict const size) {
+  FILE *restrict const stream = fopen(file, "rb");
+  if (fsize(stream, size, false))
+    return 1;
+
+  *db = (char*)malloc(*size);
+  if (fread(*db, *size, 1UL, stream) != *size)
+    return 2;
+
+  return 0;
+}
+
+/*
+ */
+static inline int dbread(char *restrict const db, void *buf, const size_t size) {
+  
+}
+
+int tireadi16() {}
diff --git a/src/read.h b/src/read.h
new file mode 100644
index 0000000..878fa1b
--- /dev/null
+++ b/src/read.h
@@ -0,0 +1,6 @@
+#ifndef CURSETREE_READ_H
+#define CURSETREE_READ_H
+
+#include <stdio.h>
+
+#endif /* CURSETREE_READ_H */