Re: [Cppcms-users] exception about endpoint
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Re: [Cppcms-users] exception about endpoint
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From: Artyom B. <art...@ya...> - 2013-01-28 13:20:08
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Had it solved the problem? Artyom Beilis -------------- CppCMS - C++ Web Framework: http://cppcms.com/ CppDB - C++ SQL Connectivity: http://cppcms.com/sql/cppdb/ >________________________________ > From: bruce xiu <bru...@gm...> >To: Artyom Beilis <art...@ya...>; cpp...@li... >Sent: Monday, January 21, 2013 10:10 AM >Subject: Re: [Cppcms-users] exception about endpoint > > >Thanks, >I don't known when the exception will reproduce. I'll fix it and rebuild cppcms. No matter if the exception reproduces, I will tell you~ > > >2013/1/21 Artyom Beilis <art...@ya...> > >Ok, >> >> >>this is incorrect code: >> >> >> >> >>86 endpoint basic_socket::remote_endpoint(system::error_code &e) >> 87 { >> 88 std::vector<char> endpoint_raw_(1000,0); // apply 1000 bytes >> 89 sockaddr *sa = reinterpret_cast<sockaddr *>(&endpoint_raw_.front()); >> 90 socklen_t len = endpoint_raw_.size(); >> 91 if(::getpeername(native(),sa,&len) < 0) >> 92 e=geterror(); >> 93 endpoint ep; >> 94 ep.raw(sa,len); // An exception thrown >> 95 return ep; >> 96 } >> >> >> >>It should be >> >> >> >> >> >> endpoint basic_socket::remote_endpoint(system::error_code &e) >> { >> std::vector<char> endpoint_raw_(1000,0); // apply 1000 bytes >> sockaddr *sa = reinterpret_cast<sockaddr *>(&endpoint_raw_.front()); >> socklen_t len = endpoint_raw_.size(); >> endpoint ep; if(::getpeername(native(),sa,&len) < 0) { >> >> e=geterror(); >> return ep; >> } >> >> ep.raw(sa,len); // An exception thrown >> return ep; >> } >> >>Can you please check if it helps? >> >> >> >> >> >> >> >>Artyom Beilis >>-------------- >>CppCMS - C++ Web Framework: http://cppcms.com/ >>CppDB - C++ SQL Connectivity: http://cppcms.com/sql/cppdb/ >> >> >> >>>________________________________ >>> From: bruce xiu <bru...@gm...> >>>To: cpp...@li... >>>Sent: Monday, January 21, 2013 6:03 AM >>>Subject: [Cppcms-users] exception about endpoint >>> >>> >>> >>>Hi, everyone, I set up a web service server using cppcms-1.0.2 some time ago , outside is nginx, and it went well. A weeks ago, I removed the nginx when I put the app to another server. And then an exception often occured. The following is exception and trace : >>> >>>-- aio::: invalid endpoint >>>0x7f7dc7acda18: booster::aio::endpoint::throw_invalid() const + 0xe8 in PATH_TO_LIBS/libbooster.so.0 >>>0x7f7dc7acdc75: booster::aio::endpoint::raw(sockaddr const*, int) + 0x25 in PATH_TO_LIBS/libbooster.so.0 >>>0x7f7dc7ad948b: booster::aio::basic_socket::remote_endpoint(booster::system::error_code&) + 0xab in PATH_TO_LIBS/libbooster.so.0 >>>0x7f7dc7f00645: cppcms::impl::cgi::http::process_request(booster::callback<void (booster::system::error_code const&)> const&) + 0x3b5 in PATH_TO_LIBS/libcppcms.so.1 >>>0x7f7dc7f0154b: cppcms::impl::cgi::http::some_headers_data_read(booster::system::error_code const&, unsigned long, booster::callback<void (booster::system::error_code const&)> const&) + 0x32b in PATH_TO_LIBS/libcppcms.so.1 >>>0x7f7dc7ade609: ??? + 0xc7ade609 in PATH_TO_LIBS/libbooster.so.0 >>>0x7f7dc7ad0c6c: booster::callback<void ()>::callable_impl<void, booster::aio::event_loop_impl::event_handler_dispatcher>::operator()() + 0x1c in PATH_TO_LIBS/libbooster.so.0 >>>0x7f7dc7ad2176: booster::aio::event_loop_impl::run_one(booster::aio::reactor::event*, unsigned long) + 0x106 in PATH_TO_LIBS/libbooster.so.0 >>>0x7f7dc7acf3e8: booster::aio::io_service::run() + 0x78 in PATH_TO_LIBS/libbooster.so.0 >>>0x7f7dc7e18c85: cpp >>>cms::service::run() + 0x65 in PATH_TO_LIBS/libcppcms.so.1 >>> >>> >>>Then I traced the exception in code, and found the function in booster/lib/aio/src/basic_socket.cpp >>> >>> >>>86 endpoint basic_socket::remote_endpoint(system::error_code &e) >>> 87 { >>> 88 std::vector<char> endpoint_raw_(1000,0); // apply 1000 bytes >>> 89 sockaddr *sa = reinterpret_cast<sockaddr *>(&endpoint_raw_.front()); >>> 90 socklen_t len = endpoint_raw_.size(); >>> 91 if(::getpeername(native(),sa,&len) < 0) >>> 92 e=geterror(); >>> 93 endpoint ep; >>> 94 ep.raw(sa,len); // An exception thrown >>> 95 return ep; >>> 96 } >>> >>> >>>in booster/lib/aio/src/endpoint.cpp >>> >>> >>>228 void endpoint::raw(sockaddr const *p,int size) >>>229 { >>>230 if(size > int(sizeof(d->sa))) // sizeof(d->sa) is 256 >>>231 throw_invalid(); //from here >>>232 d->size=size; >>>233 memcpy(&d->sa.sa,p,size); >>>234 } >>> >>> >>>remote_endpoint doesn't handle this exception. I don't know the reason of the exception exactly, I doubt that someone makes trouble deliberately. >>>In getpeername(), when len > 256 && len <= 1000, an exception will be thrown, normally sockaddr won't be so long.Then I want to modify the source in remote_endpoint >>> >>> >>>>>>std::vector<char> endpoint_raw_(1000,0) >>><<<std::vector<char> endpoint_raw_(256, 0) >>> >>> >>>then getpeername will handle the exception and return -1, and geterror() will run. >>> >>> >>>It will cause any problem? >>> >>>-- >>>ZhiXin XIU >>> >>>Computer Science & Engineering Dept., >>>Shanghai Jiao Tong University, >>>800 Dongchuan Rd., Shanghai, >>>CHINA >>>------------------------------------------------------------------------------ >>>Master Visual Studio, SharePoint, SQL, ASP.NET, C# 2012, HTML5, CSS, >>>MVC, Windows 8 Apps, JavaScript and much more. Keep your skills current >>>with LearnDevNow - 3,200 step-by-step video tutorials by Microsoft >>>MVPs and experts. SALE $99.99 this month only -- learn more at: >>>http://p.sf.net/sfu/learnmore_122412 >>>_______________________________________________ >>>Cppcms-users mailing list >>>Cpp...@li... >>>https://lists.sourceforge.net/lists/listinfo/cppcms-users >>> >>> >>> >>------------------------------------------------------------------------------ >>Master Visual Studio, SharePoint, SQL, ASP.NET, C# 2012, HTML5, CSS, >>MVC, Windows 8 Apps, JavaScript and much more. Keep your skills current >>with LearnDevNow - 3,200 step-by-step video tutorials by Microsoft >>MVPs and experts. SALE $99.99 this month only -- learn more at: >>http://p.sf.net/sfu/learnmore_122412 >>_______________________________________________ >>Cppcms-users mailing list >>Cpp...@li... >>https://lists.sourceforge.net/lists/listinfo/cppcms-users >> >> > > > >-- >ZhiXin XIU > >Computer Science & Engineering Dept., >Shanghai Jiao Tong University, >800 Dongchuan Rd., Shanghai, >CHINA >------------------------------------------------------------------------------ >Master Visual Studio, SharePoint, SQL, ASP.NET, C# 2012, HTML5, CSS, >MVC, Windows 8 Apps, JavaScript and much more. Keep your skills current >with LearnDevNow - 3,200 step-by-step video tutorials by Microsoft >MVPs and experts. SALE $99.99 this month only -- learn more at: >http://p.sf.net/sfu/learnmore_122412 >_______________________________________________ >Cppcms-users mailing list >Cpp...@li... >https://lists.sourceforge.net/lists/listinfo/cppcms-users > > > |
