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-rw-r--r--Build/source/libs/zziplib/zziplib-0.13.62/bins/zzxorcat.c113
1 files changed, 113 insertions, 0 deletions
diff --git a/Build/source/libs/zziplib/zziplib-0.13.62/bins/zzxorcat.c b/Build/source/libs/zziplib/zziplib-0.13.62/bins/zzxorcat.c
new file mode 100644
index 00000000000..97fcd51fd32
--- /dev/null
+++ b/Build/source/libs/zziplib/zziplib-0.13.62/bins/zzxorcat.c
@@ -0,0 +1,113 @@
+/*
+ * Copyright (c) 2000,2001,2002 Guido Draheim <guidod@gmx.de>
+ * Use freely under the restrictions of the ZLIB License
+ *
+ * show zip-reading with xor-obfuscation.
+ * Note that the difference to the standard zzcat.c is quite small.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include <zzip/zzip.h>
+#include <zzip/plugin.h>
+
+#if defined ZZIP_HAVE_UNISTD_H
+#include <unistd.h>
+#elif defined ZZIP_HAVE_IO_H
+#include <io.h>
+#else
+#error need posix io for this example
+#endif
+
+#ifndef O_BINARY
+#define O_BINARY 0
+#endif
+
+static const char usage[] =
+{
+ " zzxorcat [-#] <file>... \n"
+ " - prints the file to stdout, so you may want to redirect the output; \n"
+ " the file is part of an inflated zip-archive obfuscated with xor value,\n"
+ " given by the numeric option (default is 0x55). \n"
+ " to get 'README' from dist.dat you may write \n"
+ " zzcat dist/README \n"
+};
+
+static int xor_value;
+
+static zzip_ssize_t xor_read (int f, void* p, zzip_size_t l)
+{
+ zzip_ssize_t r = read(f, p, l);
+ zzip_ssize_t x; char* q; for (x=0, q=p; x < r; x++) q[x] ^= xor_value;
+ return r;
+}
+
+static zzip_plugin_io_handlers xor_handlers;
+static zzip_strings_t xor_fileext[] = { ".dat", "", 0 };
+
+int
+main (int argc, char ** argv)
+{
+ int argn;
+ xor_value = 0x55;
+
+ if (argc <= 1 || ! strcmp (argv[1], "--help"))
+ {
+ printf (usage);
+ return 0;
+ }
+ if (! strcmp (argv[1], "--version"))
+ {
+ printf (__FILE__" version "ZZIP_PACKAGE" "ZZIP_VERSION"\n");
+ return 0;
+ }
+
+ zzip_init_io (&xor_handlers, 0); xor_handlers.fd.read = &xor_read;
+
+ for (argn=1; argn < argc; argn++)
+ {
+ ZZIP_FILE* fp;
+
+ if (argv[argn][0] == '-')
+ {
+ if (isdigit(argv[argn][1])) xor_value = atoi (argv[argn]+1);
+ continue;
+ }
+
+ fp = zzip_open_ext_io (argv[argn], O_RDONLY|O_BINARY,
+ ZZIP_CASELESS|ZZIP_ONLYZIP,
+ xor_fileext, &xor_handlers);
+ if (! fp)
+ {
+ perror (argv[argn]);
+ continue;
+ }else{
+ char buf[17];
+ zzip_ssize_t n;
+
+ /* read chunks of 16 bytes into buf and print them to stdout */
+ while (0 < (n = zzip_read(fp, buf, 16)))
+ {
+ buf[n] = '\0';
+# ifdef STDOUT_FILENO
+ write (STDOUT_FILENO, buf, n);
+# else
+ fwrite (buf, 1, n, stdout);
+# endif
+ }
+
+ if (n == -1)
+ perror (argv[n]);
+ }
+ }
+
+ return 0;
+}
+
+/*
+ * Local variables:
+ * c-file-style: "stroustrup"
+ * End:
+ */