Add fclose calls

Author: danleh

wasm/zlib/build.log

@@ -1,4 +1,4 @@
-Built on 2025-01-29T13:40:54Z
+Built on 2025-02-11T11:31:02Z
 Toolchain versions
 emcc (Emscripten gcc/clang-like replacement + linker emulating GNU ld) 3.1.73 (ac676d5e437525d15df5fd46bc2c208ec6d376a3)
 Getting zpipe.c example source...

wasm/zlib/build/zlib.js.symbols

@@ -33,22 +33,25 @@
 32:zcfree
 33:__memcpy
 34:__memset
-35:ferror
-36:__stdio_seek
-37:__stdio_write
-38:__stdio_read
-39:__stdio_close
-40:fopen
-41:fread
-42:__fwritex
-43:fwrite
-44:__emscripten_stdout_close
-45:__emscripten_stdout_seek
-46:strchr
-47:__wasi_syscall_ret
-48:emscripten_builtin_malloc
-49:sbrk
-50:_emscripten_stack_restore
-51:_emscripten_stack_alloc
-52:emscripten_stack_get_current
-53:legalstub$dynCall_jiji
+35:fclose
+36:ferror
+37:fflush
+38:__stdio_seek
+39:__stdio_write
+40:__stdio_read
+41:__stdio_close
+42:fopen
+43:fread
+44:__fwritex
+45:fwrite
+46:__emscripten_stdout_close
+47:__emscripten_stdout_seek
+48:strchr
+49:__wasi_syscall_ret
+50:emscripten_builtin_malloc
+51:emscripten_builtin_free
+52:sbrk
+53:_emscripten_stack_restore
+54:_emscripten_stack_alloc
+55:emscripten_stack_get_current
+56:legalstub$dynCall_jiji

wasm/zlib/build/zlib.wasm

@@ -27,6 +27,15 @@ int compressFile(const char* infilename, const char* outfilename)
     int ret = def(infile, outfile, Z_BEST_COMPRESSION);
     if (ret != Z_OK)
         zerr(ret);
+
+    if (fclose(infile)) {
+        fputs("error closing input file", stderr);
+        return 1;
+    }
+    if (fclose(outfile)) {
+        fputs("error closing output file", stderr);
+        return 1;
+    }
     return ret;
 }
 int decompressFile(const char* infilename, const char* outfilename)
@@ -45,5 +54,14 @@ int decompressFile(const char* infilename, const char* outfilename)
     int ret = inf(infile, outfile);
     if (ret != Z_OK)
         zerr(ret);
+
+    if (fclose(infile)) {
+        fputs("error closing input file", stderr);
+        return 1;
+    }
+    if (fclose(outfile)) {
+        fputs("error closing output file", stderr);
+        return 1;
+    }
     return ret;
 }