1 files changed, 65 insertions, 0 deletions
diff --git a/tools/aapt/ZipFile.cpp b/tools/aapt/ZipFile.cpp
index 36f4e73..8a4eef5 100644
--- a/tools/aapt/ZipFile.cpp
+++ b/tools/aapt/ZipFile.cpp
@@ -130,6 +130,71 @@ status_t ZipFile::open(const char* zipFileName, int flags)
 }
 
 /*
+ * Open a file and parse its guts.
+ */
+status_t ZipFile::openfd(int fd, int flags)
+{
+    bool newArchive = true;
+
+    assert(mZipFp == NULL);     // no reopen
+
+    if ((flags & kOpenTruncate))
+        flags |= kOpenCreate;           // trunc implies create
+
+    if ((flags & kOpenReadOnly) && (flags & kOpenReadWrite))
+        return INVALID_OPERATION;       // not both
+    if (!((flags & kOpenReadOnly) || (flags & kOpenReadWrite)))
+        return INVALID_OPERATION;       // not neither
+    if ((flags & kOpenCreate) && !(flags & kOpenReadWrite))
+        return INVALID_OPERATION;       // create requires write
+
+    /* open the file */
+    const char* openflags;
+    if (flags & kOpenReadWrite) {
+        if (newArchive)
+            openflags = FILE_OPEN_RW_CREATE;
+        else
+            openflags = FILE_OPEN_RW;
+    } else {
+        openflags = FILE_OPEN_RO;
+    }
+    mZipFp = fdopen(fd, openflags);
+    if (mZipFp == NULL) {
+        int err = errno;
+        ALOGD("fdopen failed: %s\n", strerror(err));
+        return errnoToStatus(err);
+    }
+
+    status_t result;
+    if (!newArchive) {
+        /*
+         * Load the central directory.  If that fails, then this probably
+         * isn't a Zip archive.
+         */
+        result = readCentralDir();
+    } else {
+        /*
+         * Newly-created.  The EndOfCentralDir constructor actually
+         * sets everything to be the way we want it (all zeroes).  We
+         * set mNeedCDRewrite so that we create *something* if the
+         * caller doesn't add any files.  (We could also just unlink
+         * the file if it's brand new and nothing was added, but that's
+         * probably doing more than we really should -- the user might
+         * have a need for empty zip files.)
+         */
+        mNeedCDRewrite = true;
+        result = NO_ERROR;
+    }
+
+    if (flags & kOpenReadOnly)
+        mReadOnly = true;
+    else
+        assert(!mReadOnly);
+
+    return result;
+}
+
+/*
  * Return the Nth entry in the archive.
  */
 ZipEntry* ZipFile::getEntryByIndex(int idx) const