+#ifdef ZLIB_STANDALONE
+
+#include <stdio.h>
+#include <string.h>
+
+int main(int argc, char **argv)
+{
+ unsigned char buf[16], *outbuf;
+ int ret, outlen;
+ void *handle;
+ int noheader = FALSE, opts = TRUE;
+ char *filename = NULL;
+ FILE *fp;
+
+ while (--argc) {
+ char *p = *++argv;
+
+ if (p[0] == '-' && opts) {
+ if (!strcmp(p, "-d"))
+ noheader = TRUE;
+ else if (!strcmp(p, "--"))
+ opts = FALSE; /* next thing is filename */
+ else {
+ fprintf(stderr, "unknown command line option '%s'\n", p);
+ return 1;
+ }
+ } else if (!filename) {
+ filename = p;
+ } else {
+ fprintf(stderr, "can only handle one filename\n");
+ return 1;
+ }
+ }
+
+ handle = zlib_decompress_init();
+
+ if (noheader) {
+ /*
+ * Provide missing zlib header if -d was specified.
+ */
+ zlib_decompress_block(handle, "\x78\x9C", 2, &outbuf, &outlen);
+ assert(outlen == 0);
+ }
+
+ if (filename)
+ fp = fopen(filename, "rb");
+ else
+ fp = stdin;
+
+ if (!fp) {
+ assert(filename);
+ fprintf(stderr, "unable to open '%s'\n", filename);
+ return 1;
+ }
+
+ while (1) {
+ ret = fread(buf, 1, sizeof(buf), fp);
+ if (ret <= 0)
+ break;
+ zlib_decompress_block(handle, buf, ret, &outbuf, &outlen);
+ if (outbuf) {
+ if (outlen)
+ fwrite(outbuf, 1, outlen, stdout);
+ sfree(outbuf);
+ } else {
+ fprintf(stderr, "decoding error\n");
+ return 1;
+ }
+ }
+
+ zlib_decompress_cleanup(handle);
+
+ if (filename)
+ fclose(fp);
+
+ return 0;
+}
+
+#else
+