*/
static struct EXTRACTOR_PluginList *plugins;
+/**
+ * File descriptor we use for IPC with the parent.
+ */
+static int output_stream;
+
/**
* Add meta data that libextractor finds to our meta data
/**
- * Write 'size' bytes from 'buf' into 'out'.
+ * Write @a size bytes from @a buf into the #output_stream.
*
* @param buf buffer with data to write
* @param size number of bytes to write
- * @return GNUNET_OK on success, GNUNET_SYSERR on error
+ * @return #GNUNET_OK on success, #GNUNET_SYSERR on error
*/
static int
write_all (const void *buf,
total = 0;
do
{
- wr = write (1,
+ wr = write (output_stream,
&cbuf[total],
size - total);
if (wr > 0)
*
* @param message_type message type to use
* @param data data to append, NULL for none
- * @param data_length number of bytes in data
- * @return GNUNET_SYSERR to stop scanning (the pipe was broken somehow)
+ * @param data_length number of bytes in @a data
+ * @return #GNUNET_SYSERR to stop scanning (the pipe was broken somehow)
*/
static int
write_message (uint16_t message_type,
struct GNUNET_MessageHeader hdr;
#if 0
- fprintf (stderr, "Helper sends %u-byte message of type %u\n",
+ fprintf (stderr,
+ "Helper sends %u-byte message of type %u\n",
(unsigned int) (sizeof (struct GNUNET_MessageHeader) + data_length),
(unsigned int) message_type);
#endif
*
* @param filename file or directory to scan
* @param dst where to store the resulting share tree item;
- * NULL is stored in 'dst' upon recoverable errors (GNUNET_OK is returned)
- * @return GNUNET_OK on success, GNUNET_SYSERR on error
+ * NULL is stored in @a dst upon recoverable errors (#GNUNET_OK is returned)
+ * @return #GNUNET_OK on success, #GNUNET_SYSERR on error
*/
static int
preprocess_file (const char *filename,
* of the files in the directory to the tree. Called by the directory
* scanner to initiate the scan. Does NOT yet add any metadata.
*
- * @param cls the 'struct RecursionContext'
+ * @param cls the `struct RecursionContext`
* @param filename file or directory to scan
- * @return GNUNET_OK on success, GNUNET_SYSERR on error
+ * @return #GNUNET_OK on success, #GNUNET_SYSERR on error
*/
static int
scan_callback (void *cls,
*
* @param filename file or directory to scan
* @param dst where to store the resulting share tree item;
- * NULL is stored in 'dst' upon recoverable errors (GNUNET_OK is returned)
- * @return GNUNET_OK on success, GNUNET_SYSERR on error
+ * NULL is stored in @a dst upon recoverable errors (#GNUNET_OK is returned)
+ * @return #GNUNET_OK on success, #GNUNET_SYSERR on error
*/
static int
preprocess_file (const char *filename,
* Extract metadata from files.
*
* @param item entry we are processing
- * @return GNUNET_OK on success, GNUNET_SYSERR on fatal errors
+ * @return #GNUNET_OK on success, #GNUNET_SYSERR on fatal errors
*/
static int
extract_files (struct ScanTreeNode *item)
fprintf (stderr,
"Failed to install SIGPIPE handler: %s\n", strerror (errno));
}
+
+
+/**
+ * Turn the given file descriptor in to '/dev/null'.
+ *
+ * @param fd fd to bind to /dev/null
+ * @param flags flags to use (O_RDONLY or O_WRONLY)
+ */
+static void
+make_dev_zero (int fd,
+ int flags)
+{
+ int z;
+
+ GNUNET_assert (0 == close (fd));
+ z = open ("/dev/null", flags);
+ GNUNET_assert (-1 != z);
+ if (z == fd)
+ return;
+ dup2 (z, fd);
+ GNUNET_assert (0 == close (z));
+}
+
#endif
* otherwise custom plugins to load from LE
* @return 0 on success
*/
-int main(int argc,
- char *const *argv)
+int
+main (int argc,
+ char *const *argv)
{
const char *filename_expanded;
const char *ex;
/* Get utf-8-encoded arguments */
if (GNUNET_OK != GNUNET_STRINGS_get_utf8_args (argc, argv, &argc, &argv))
return 5;
+ output_stream = 1; /* stdout */
#else
ignore_sigpipe ();
+ /* move stdout to some other FD for IPC, bind
+ stdout/stderr to /dev/null */
+ output_stream = dup (1);
+ make_dev_zero (1, O_WRONLY);
+ make_dev_zero (2, O_WRONLY);
#endif
/* parse command line */