Initial add.

extras/selfextract.c

@@ -0,0 +1,66 @@
+/*
+ * This code shows how to read a zipfile included in an app's binary.
+ *
+ * License: this code is public domain. I make no warranty that it is useful,
+ *  correct, harmless, or environmentally safe.
+ *
+ * This particular file may be used however you like, including copying it
+ *  verbatim into a closed-source project, exploiting it commercially, and
+ *  removing any trace of my name from the source (although I hope you won't
+ *  do that). I welcome enhancements and corrections to this file, but I do
+ *  not require you to send me patches if you make changes. This code has
+ *  NO WARRANTY.
+ *
+ * Unless otherwise stated, the rest of PhysicsFS falls under the zlib license.
+ *  Please see LICENSE in the root of the source tree.
+ *
+ *  This file was written by Ryan C. Gordon. (icculus@clutteredmind.org).
+ */
+
+/*
+ * Compile this program and then attach a .zip file to the end of the
+ *  compiled binary.
+ *
+ * On Linux, something like this will build the final binary:
+ *   gcc -o selfextract.tmp selfextract.c -lphysfs && \
+ *   cat selfextract.tmp myzipfile.zip >> selfextract && \
+ *   chmod a+x selfextract && \
+ *   rm -f selfextract.tmp
+ *
+ * This may not work on all platforms, and it probably only works with
+ *  .zip files, since they are designed to be appended to another file.
+ */
+
+#include <stdio.h>
+#include "physfs.h"
+
+int main(int argc, char **argv)
+{
+    int rc = 0;
+
+    if (!PHYSFS_init(argv[0]))
+    {
+        printf("PHYSFS_init() failed: %s\n", PHYSFS_getLastError());
+        return(42);
+    } /* if */
+
+    rc = PHYSFS_addToSearchPath(argv[0], 0);
+    if (!rc)
+    {
+        printf("Couldn't find self-extract data: %s\n", PHYSFS_getLastError());
+        printf("This might mean you didn't append a zipfile to the binary.\n");
+        return(42);
+    } /* if */
+
+    char **files = PHYSFS_enumerateFiles("/");
+    char **i;
+    for (i = files; *i != NULL; i++)
+    {
+        const char *dirorfile = PHYSFS_isDirectory(*i) ? "Directory" : "File";
+        printf(" * %s '%s' is in root of attached data.\n", dirorfile, *i);
+    } /* for */
+    PHYSFS_freeList(files);
+
+    return(0);
+} /* main */
+