input_stream: return allocated input_stream objects
Major API redesign: don't let the caller allocate the input_stream object. Let each input plugin allocate its own (derived/extended) input_stream pointer. The "data" attribute can now be removed, and all input plugins simply cast the input_stream pointer to their own structure (with an "struct input_stream base" as the first attribute).
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@@ -103,7 +103,7 @@ dump_input_stream(struct input_stream *is)
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int main(int argc, char **argv)
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{
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GError *error = NULL;
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struct input_stream is;
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struct input_stream *is;
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int ret;
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if (argc != 2) {
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@@ -133,9 +133,10 @@ int main(int argc, char **argv)
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/* open the stream and dump it */
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if (input_stream_open(&is, argv[1], &error)) {
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ret = dump_input_stream(&is);
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input_stream_close(&is);
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is = input_stream_open(argv[1], &error);
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if (is != NULL) {
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ret = dump_input_stream(is);
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input_stream_close(is);
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} else {
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if (error != NULL) {
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g_warning("%s", error->message);
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