Add fdopen, fwrite

lupyuen · Jan 27, 2024 · 7380fe1 · 7380fe1
1 parent 401bae9
commit 7380fe1
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Showing 3 changed files with 12 additions and 6 deletions.
diff --git a/docs/tcc-wasm.wasm b/docs/tcc-wasm.wasm
diff --git a/tcc-wasm.wasm b/tcc-wasm.wasm
diff --git a/zig/tcc-wasm.zig b/zig/tcc-wasm.zig
@@ -51,6 +51,13 @@ export fn open(path: [*:0]const u8, oflag: c_uint, ...) c_int {
     return ret;
 }
 
+export fn fdopen(fd0: c_int, mode: [*:0]const u8) *FILE {
+    debug("fdopen: fd={}, mode={s}, return FILE={}", .{ fd0, mode, fd });
+    const ret = fd;
+    fd += 1;
+    return @ptrFromInt(@as(usize, @intCast(ret)));
+}
+
 export fn read(fd0: c_int, buf: [*:0]u8, nbyte: size_t) isize {
     debug("read: fd={}, nbyte={}", .{ fd0, nbyte });
     // Return the contents once only
@@ -72,6 +79,11 @@ export fn read(fd0: c_int, buf: [*:0]u8, nbyte: size_t) isize {
     return @intCast(strlen(s));
 }
 
+export fn fwrite(ptr: [*:0]u8, size: usize, nmemb: usize, stream: *FILE) usize {
+    debug("fwrite: ptr={s}, size={}, nmemb={}, stream={*}", .{ ptr, size, nmemb, stream });
+    return nmemb;
+}
+
 export fn close(fd0: c_int) c_int {
     debug("close: fd={}", .{fd0});
     return 0;
@@ -371,9 +383,6 @@ pub export fn exit(_: c_int) c_int {
 pub export fn fclose(_: c_int) c_int {
     @panic("TODO: fclose");
 }
-pub export fn fdopen(_: c_int) c_int {
-    @panic("TODO: fdopen");
-}
 pub export fn fopen(_: c_int) c_int {
     @panic("TODO: fopen");
 }
@@ -392,9 +401,6 @@ pub export fn fseek(_: c_int) c_int {
 pub export fn ftell(_: c_int) c_int {
     @panic("TODO: ftell");
 }
-pub export fn fwrite(_: c_int) c_int {
-    @panic("TODO: fwrite");
-}
 pub export fn getcwd(_: c_int) c_int {
     @panic("TODO: getcwd");
 }