[Issue 13573] New: std.net.curl doesn't handle exceptions in callbacks

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=13573

          Issue ID: 13573
           Summary: std.net.curl doesn't handle exceptions in callbacks
           Product: D
           Version: D2
          Hardware: x86_64
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Phobos
          Assignee: nobody at puremagic.com
          Reporter: code at dawg.eu

cat > bug.d << CODE
import std.net.curl;

void main()
{
    auto http = HTTP("dlang.org/non-existing-url");
    http.onReceiveStatusLine = (HTTP.StatusLine s) {
        if (s.code != 200)
            throw new Exception("Request failed.");
    };
    http.method = HTTP.Method.head;
    http.perform();
}
CODE

dmd -L-lcurl -run bug

----

This program segfaults because the D exception handling cannot unwind through
the C stack of libcurl. What's needed here is either a nothrow requirement on
the callbacks or an exception catch/rethrow mechanism.

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