Bug #3 ยป 0003-Reserve-space-for-terminating-NULL-on-astr_buffer.patch
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va_copy(copy, ap);
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req_len = fc_vsnprintf(buffer, buffer_size, format, ap);
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if (req_len > buffer_size) {
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buffer = astr_buffer_grow(req_len, &buffer_size);
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if (req_len + 1 > buffer_size) {
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buffer = astr_buffer_grow(req_len + 1, &buffer_size);
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/* Even if buffer is *still* too small, we fill what we can */
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req_len = fc_vsnprintf(buffer, buffer_size, format, copy);
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if (req_len > buffer_size) {
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