diff options
Diffstat (limited to 'src/microhttpd/mhd_sockets.h')
| -rw-r--r-- | src/microhttpd/mhd_sockets.h | 434 |
1 files changed, 276 insertions, 158 deletions
diff --git a/src/microhttpd/mhd_sockets.h b/src/microhttpd/mhd_sockets.h index 3a3e4b85..b38a5d55 100644 --- a/src/microhttpd/mhd_sockets.h +++ b/src/microhttpd/mhd_sockets.h @@ -204,38 +204,6 @@ # define MHD_socket_close_(fd) closesocket((fd)) #endif -/** - * MHD_socket_errno_ is errno of last function (non-W32) / errno of - * last socket function (W32) - */ -#if !defined(MHD_WINSOCK_SOCKETS) -# define MHD_socket_errno_ errno -#else -# define MHD_socket_errno_ MHD_W32_errno_from_winsock_() -#endif - - /* MHD_socket_last_strerr_ is description string of last errno (non-W32) / - * description string of last socket error (W32) */ -#if !defined(MHD_WINSOCK_SOCKETS) -# define MHD_socket_last_strerr_() strerror(errno) -#else -# define MHD_socket_last_strerr_() MHD_W32_strerror_last_winsock_() -#endif - - /* MHD_strerror_ is strerror (both non-W32/W32) */ -#if !defined(MHD_WINSOCK_SOCKETS) -# define MHD_strerror_(errnum) strerror((errnum)) -#else -# define MHD_strerror_(errnum) MHD_W32_strerror_((errnum)) -#endif - - /* MHD_set_socket_errno_ set errno to errnum (non-W32) / set socket last error to errnum (W32) */ -#if !defined(MHD_WINSOCK_SOCKETS) -# define MHD_set_socket_errno_(errnum) errno=(errnum) -#else -# define MHD_set_socket_errno_(errnum) MHD_W32_set_last_winsock_error_((errnum)) -#endif - /* MHD_SYS_select_ is wrapper macro for system select() function */ #if !defined(MHD_WINSOCK_SOCKETS) # define MHD_SYS_select_(n,r,w,e,t) select((n),(r),(w),(e),(t)) @@ -257,150 +225,300 @@ # endif /* MHD_WINSOCK_SOCKETS */ #endif /* HAVE_POLL */ +#define MHD_SCKT_MISSING_ERR_CODE_ 31450 + +#if defined(MHD_POSIX_SOCKETS) +# if defined(EAGAIN) +# define MHD_SCKT_EAGAIN_ EAGAIN +# elif defined(EWOULDBLOCK) +# define MHD_SCKT_EAGAIN_ EWOULDBLOCK +# else /* !EAGAIN && !EWOULDBLOCK */ +# define MHD_SCKT_EAGAIN_ MHD_SCKT_MISSING_ERR_CODE_ +# endif /* !EAGAIN && !EWOULDBLOCK */ +# if defined(EWOULDBLOCK) +# define MHD_SCKT_EWOULDBLOCK_ EWOULDBLOCK +# elif defined(EAGAIN) +# define MHD_SCKT_EWOULDBLOCK_ EAGAIN +# else /* !EWOULDBLOCK && !EAGAIN */ +# define MHD_SCKT_EWOULDBLOCK_ MHD_SCKT_MISSING_ERR_CODE_ +# endif /* !EWOULDBLOCK && !EAGAIN */ +# ifdef EINTR +# define MHD_SCKT_EINTR_ EINTR +# else /* ! EINTR */ +# define MHD_SCKT_EINTR_ MHD_SCKT_MISSING_ERR_CODE_ +# endif /* ! EINTR */ +# ifdef ECONNRESET +# define MHD_SCKT_ECONNRESET_ ECONNRESET +# else /* ! ECONNRESET */ +# define MHD_SCKT_ECONNRESET_ MHD_SCKT_MISSING_ERR_CODE_ +# endif /* ! ECONNRESET */ +# ifdef ECONNABORTED +# define MHD_SCKT_ECONNABORTED_ ECONNABORTED +# else /* ! ECONNABORTED */ +# define MHD_SCKT_ECONNABORTED_ MHD_SCKT_MISSING_ERR_CODE_ +# endif /* ! ECONNABORTED */ +# ifdef ENOTCONN +# define MHD_SCKT_ENOTCONN_ ENOTCONN +# else /* ! ENOTCONN */ +# define MHD_SCKT_ENOTCONN_ MHD_SCKT_MISSING_ERR_CODE_ +# endif /* ! ENOTCONN */ +# ifdef EMFILE +# define MHD_SCKT_EMFILE_ EMFILE +# else /* ! EMFILE */ +# define MHD_SCKT_EMFILE_ MHD_SCKT_MISSING_ERR_CODE_ +# endif /* ! EMFILE */ +# ifdef ENFILE +# define MHD_SCKT_ENFILE_ ENFILE +# else /* ! ENFILE */ +# define MHD_SCKT_ENFILE_ MHD_SCKT_MISSING_ERR_CODE_ +# endif /* ! ENFILE */ +# ifdef ENOMEM +# define MHD_SCKT_ENOMEM_ ENOMEM +# else /* ! ENOMEM */ +# define MHD_SCKT_ENOMEM_ MHD_SCKT_MISSING_ERR_CODE_ +# endif /* ! ENOMEM */ +# ifdef ENOBUFS +# define MHD_SCKT_ENOBUFS_ ENOBUFS +# else /* ! ENOBUFS */ +# define MHD_SCKT_ENOBUFS_ MHD_SCKT_MISSING_ERR_CODE_ +# endif /* ! ENOBUFS */ +# ifdef EBADF +# define MHD_SCKT_EBADF_ EBADF +# else /* ! EBADF */ +# define MHD_SCKT_EBADF_ MHD_SCKT_MISSING_ERR_CODE_ +# endif /* ! EBADF */ +# ifdef ENOTSOCK +# define MHD_SCKT_ENOTSOCK_ ENOTSOCK +# else /* ! ENOTSOCK */ +# define MHD_SCKT_ENOTSOCK_ MHD_SCKT_MISSING_ERR_CODE_ +# endif /* ! ENOTSOCK */ +# ifdef EINVAL +# define MHD_SCKT_EINVAL_ EINVAL +# else /* ! EINVAL */ +# define MHD_SCKT_EINVAL_ MHD_SCKT_MISSING_ERR_CODE_ +# endif /* ! EINVAL */ +# ifdef EFAULT +# define MHD_SCKT_EFAUL_ EFAULT +# else /* ! EFAULT */ +# define MHD_SCKT_EFAUL_ MHD_SCKT_MISSING_ERR_CODE_ +# endif /* ! EFAULT */ +# ifdef ENOSYS +# define MHD_SCKT_ENOSYS_ ENOSYS +# else /* ! ENOSYS */ +# define MHD_SCKT_ENOSYS_ MHD_SCKT_MISSING_ERR_CODE_ +# endif /* ! ENOSYS */ +# ifdef ENOTSUP +# define MHD_SCKT_ENOTSUP_ ENOTSUP +# else /* ! ENOTSUP */ +# define MHD_SCKT_ENOTSUP_ MHD_SCKT_MISSING_ERR_CODE_ +# endif /* ! ENOTSUP */ +# ifdef EOPNOTSUPP +# define MHD_SCKT_EOPNOTSUPP_ EOPNOTSUPP +# else /* ! EOPNOTSUPP */ +# define MHD_SCKT_EOPNOTSUPP_ MHD_SCKT_MISSING_ERR_CODE_ +# endif /* ! EOPNOTSUPP */ +# ifdef EACCES +# define MHD_SCKT_EACCESS_ EACCES +# else /* ! EACCES */ +# define MHD_SCKT_EACCESS_ MHD_SCKT_MISSING_ERR_CODE_ +# endif /* ! EACCES */ +# ifdef ENETDOWN +# define MHD_SCKT_ENETDOWN_ ENETDOWN +# else /* ! ENETDOWN */ +# define MHD_SCKT_ENETDOWN_ MHD_SCKT_MISSING_ERR_CODE_ +# endif /* ! ENETDOWN */ +#elif defined(MHD_WINSOCK_SOCKETS) +# define MHD_SCKT_EAGAIN_ WSAEWOULDBLOCK +# define MHD_SCKT_EWOULDBLOCK_ WSAEWOULDBLOCK +# define MHD_SCKT_EINTR_ WSAEINTR +# define MHD_SCKT_ECONNRESET_ WSAECONNRESET +# define MHD_SCKT_ECONNABORTED_ WSAECONNABORTED +# define MHD_SCKT_ENOTCONN_ WSAENOTCONN +# define MHD_SCKT_EMFILE_ WSAEMFILE +# define MHD_SCKT_ENFILE_ MHD_SCKT_MISSING_ERR_CODE_ +# define MHD_SCKT_ENOMEM_ MHD_SCKT_MISSING_ERR_CODE_ +# define MHD_SCKT_ENOBUFS_ WSAENOBUFS +# define MHD_SCKT_EBADF_ WSAEBADF +# define MHD_SCKT_ENOTSOCK_ WSAENOTSOCK +# define MHD_SCKT_EINVAL_ WSAEINVAL +# define MHD_SCKT_EFAUL_ WSAEFAULT +# define MHD_SCKT_ENOSYS_ MHD_SCKT_MISSING_ERR_CODE_ +# define MHD_SCKT_ENOTSUP_ MHD_SCKT_MISSING_ERR_CODE_ +# define MHD_SCKT_EOPNOTSUPP_ WSAEOPNOTSUPP +# define MHD_SCKT_EACCESS_ WSAEACCES +# define MHD_SCKT_ENETDOWN_ WSAENETDOWN +#endif + +/** + * MHD_socket_error_ return system native error code for last socket error. + * @return system error code for last socket error. + */ +#if defined(MHD_POSIX_SOCKETS) +# define MHD_socket_get_error_() (errno) +#elif defined(MHD_WINSOCK_SOCKETS) +# define MHD_socket_get_error_() WSAGetLastError() +#endif #ifdef MHD_WINSOCK_SOCKETS + /* POSIX-W32 sockets compatibility functions */ -/* POSIX-W32 compatibility functions and macros */ +/** + * Return pointer to string description of specified WinSock error + * @param err the WinSock error code. + * @return pointer to string description of specified WinSock error. + */ + const char* MHD_W32_strerror_winsock_(int err); +#endif /* MHD_WINSOCK_SOCKETS */ -# define MHDW32ERRBASE 3300 +/* MHD_socket_last_strerr_ is description string of specified socket error code */ +#if defined(MHD_POSIX_SOCKETS) +# define MHD_socket_strerr_(err) strerror((err)) +#elif defined(MHD_WINSOCK_SOCKETS) +# define MHD_socket_strerr_(err) MHD_W32_strerror_winsock_((err)) +#endif -# ifndef EWOULDBLOCK -# define EWOULDBLOCK (MHDW32ERRBASE+1) -# endif -# ifndef EINPROGRESS -# define EINPROGRESS (MHDW32ERRBASE+2) -# endif -# ifndef EALREADY -# define EALREADY (MHDW32ERRBASE+3) -# endif -# ifndef ENOTSOCK -# define ENOTSOCK (MHDW32ERRBASE+4) -# endif -# ifndef EDESTADDRREQ -# define EDESTADDRREQ (MHDW32ERRBASE+5) -# endif -# ifndef EMSGSIZE -# define EMSGSIZE (MHDW32ERRBASE+6) -# endif -# ifndef EPROTOTYPE -# define EPROTOTYPE (MHDW32ERRBASE+7) -# endif -# ifndef ENOPROTOOPT -# define ENOPROTOOPT (MHDW32ERRBASE+8) -# endif -# ifndef EPROTONOSUPPORT -# define EPROTONOSUPPORT (MHDW32ERRBASE+9) -# endif -# ifndef EOPNOTSUPP -# define EOPNOTSUPP (MHDW32ERRBASE+10) -# endif -# ifndef EAFNOSUPPORT -# define EAFNOSUPPORT (MHDW32ERRBASE+11) -# endif -# ifndef EADDRINUSE -# define EADDRINUSE (MHDW32ERRBASE+12) -# endif -# ifndef EADDRNOTAVAIL -# define EADDRNOTAVAIL (MHDW32ERRBASE+13) -# endif -# ifndef ENETDOWN -# define ENETDOWN (MHDW32ERRBASE+14) -# endif -# ifndef ENETUNREACH -# define ENETUNREACH (MHDW32ERRBASE+15) -# endif -# ifndef ENETRESET -# define ENETRESET (MHDW32ERRBASE+16) -# endif -# ifndef ECONNABORTED -# define ECONNABORTED (MHDW32ERRBASE+17) -# endif -# ifndef ECONNRESET -# define ECONNRESET (MHDW32ERRBASE+18) -# endif -# ifndef ENOBUFS -# define ENOBUFS (MHDW32ERRBASE+19) -# endif -# ifndef EISCONN -# define EISCONN (MHDW32ERRBASE+20) -# endif -# ifndef ENOTCONN -# define ENOTCONN (MHDW32ERRBASE+21) -# endif -# ifndef ETOOMANYREFS -# define ETOOMANYREFS (MHDW32ERRBASE+22) -# endif -# ifndef ECONNREFUSED -# define ECONNREFUSED (MHDW32ERRBASE+23) -# endif -# ifndef ELOOP -# define ELOOP (MHDW32ERRBASE+24) -# endif -# ifndef EHOSTDOWN -# define EHOSTDOWN (MHDW32ERRBASE+25) -# endif -# ifndef EHOSTUNREACH -# define EHOSTUNREACH (MHDW32ERRBASE+26) -# endif -# ifndef EPROCLIM -# define EPROCLIM (MHDW32ERRBASE+27) -# endif -# ifndef EUSERS -# define EUSERS (MHDW32ERRBASE+28) -# endif -# ifndef EDQUOT -# define EDQUOT (MHDW32ERRBASE+29) -# endif -# ifndef ESTALE -# define ESTALE (MHDW32ERRBASE+30) -# endif -# ifndef EREMOTE -# define EREMOTE (MHDW32ERRBASE+31) -# endif -# ifndef ESOCKTNOSUPPORT -# define ESOCKTNOSUPPORT (MHDW32ERRBASE+32) -# endif -# ifndef EPFNOSUPPORT -# define EPFNOSUPPORT (MHDW32ERRBASE+33) -# endif -# ifndef ESHUTDOWN -# define ESHUTDOWN (MHDW32ERRBASE+34) -# endif -# ifndef ENODATA -# define ENODATA (MHDW32ERRBASE+35) -# endif -# ifndef ETIMEDOUT -# define ETIMEDOUT (MHDW32ERRBASE+36) -# endif +/* MHD_socket_last_strerr_ is description string of last errno (non-W32) / + * description string of last socket error (W32) */ +#define MHD_socket_last_strerr_() MHD_socket_strerr_(MHD_socket_get_error_()) /** - * Return errno equivalent of last winsock error - * @return errno equivalent of last winsock error + * MHD_socket_fset_error_() set socket system native error code. */ - int MHD_W32_errno_from_winsock_(void); +#if defined(MHD_POSIX_SOCKETS) +# define MHD_socket_fset_error_(err) (errno = (err)) +#elif defined(MHD_WINSOCK_SOCKETS) +# define MHD_socket_fset_error_(err) (WSASetLastError((err))) +#endif /** - * Return pointer to string description of errnum error - * Works fine with both standard errno errnums - * and errnums from MHD_W32_errno_from_winsock_ - * @param errnum the errno or value from MHD_W32_errno_from_winsock_() - * @return pointer to string description of error + * MHD_socket_try_set_error_() set socket system native error code if + * specified code is defined on system. + * @return non-zero if specified @a err code is defined on system + * and error was set; + * zero if specified @a err code is not defined on system + * and error was not set. */ - const char* MHD_W32_strerror_(int errnum); +#define MHD_socket_try_set_error_(err) ( (MHD_SCKT_MISSING_ERR_CODE_ != (err)) ? \ + (MHD_socket_fset_error_((err)), !0) : 0 ) /** - * Return pointer to string description of last winsock error - * @return pointer to string description of last winsock error + * MHD_socket_set_error_() set socket system native error code to + * specified code or replacement code if specified code is not + * defined on system. */ - const char* MHD_W32_strerror_last_winsock_(void); +#if defined(MHD_POSIX_SOCKETS) +# if defined(ENOSYS) +# define MHD_socket_set_error_(err) ( (MHD_SCKT_MISSING_ERR_CODE_ == (err)) ? \ + (errno = ENOSYS) : (errno = (err)) ) +# elif defined(EOPNOTSUPP) +# define MHD_socket_set_error_(err) ( (MHD_SCKT_MISSING_ERR_CODE_ == (err)) ? \ + (errno = EOPNOTSUPP) : (errno = (err)) ) +# elif defined (EFAULT) +# define MHD_socket_set_error_(err) ( (MHD_SCKT_MISSING_ERR_CODE_ == (err)) ? \ + (errno = EFAULT) : (errno = (err)) ) +# elif defined (EINVAL) +# define MHD_socket_set_error_(err) ( (MHD_SCKT_MISSING_ERR_CODE_ == (err)) ? \ + (errno = EINVAL) : (errno = (err)) ) +# else /* !EOPNOTSUPP && !EFAULT && !EINVAL */ +# warning No suitable replacement for missing socket error code is found. Edit this file and add replacement code which is defined on system. +# define MHD_socket_set_error_(err) (errno = (err)) +# endif /* !EOPNOTSUPP && !EFAULT && !EINVAL*/ +#elif defined(MHD_WINSOCK_SOCKETS) +# define MHD_socket_set_error_(err) ( (MHD_SCKT_MISSING_ERR_CODE_ == (err)) ? \ + (WSASetLastError((WSAEOPNOTSUPP))) : \ + (WSASetLastError((err))) ) +#endif /** - * Set last winsock error to equivalent of given errno value - * @param errnum the errno value to set + * Check whether given socket error is equal to specified system + * native MHD_SCKT_E*_ code. + * If platform don't have specific error code, result is + * always boolean false. + * @return boolean true if @a code is real error code and + * @a err equals to MHD_SCKT_E*_ @a code; + * boolean false otherwise */ - void MHD_W32_set_last_winsock_error_(int errnum); +#define MHD_SCKT_ERR_IS_(err,code) ( (MHD_SCKT_MISSING_ERR_CODE_ != (code)) && \ + ((code) == (err)) ) +/** + * Check whether last socket error is equal to specified system + * native MHD_SCKT_E*_ code. + * If platform don't have specific error code, result is + * always boolean false. + * @return boolean true if @a code is real error code and + * last socket error equals to MHD_SCKT_E*_ @a code; + * boolean false otherwise + */ +#define MHD_SCKT_LAST_ERR_IS_(code) MHD_SCKT_ERR_IS_(MHD_socket_get_error_() ,(code)) -#endif /* MHD_WINSOCK_SOCKETS */ +/* Specific error code checks */ + +/** + * Check whether given socket error is equal to system's + * socket error codes for EINTR. + * @return boolean true if @a err is equal to sockets' EINTR code; + * boolean false otherwise. + */ +#define MHD_SCKT_ERR_IS_EINTR_(err) MHD_SCKT_ERR_IS_((err),MHD_SCKT_EINTR_) + +/** + * Check whether given socket error is equal to system's + * socket error codes for EAGAIN or EWOULDBLOCK. + * @return boolean true if @a err is equal to sockets' EAGAIN or EWOULDBLOCK codes; + * boolean false otherwise. + */ +#if MHD_SCKT_EAGAIN_ == MHD_SCKT_EWOULDBLOCK_ +# define MHD_SCKT_ERR_IS_EAGAIN_(err) MHD_SCKT_ERR_IS_((err),MHD_SCKT_EAGAIN_) +#else /* MHD_SCKT_EAGAIN_ != MHD_SCKT_EWOULDBLOCK_ */ +# define MHD_SCKT_ERR_IS_EAGAIN_(err) ( MHD_SCKT_ERR_IS_((err),MHD_SCKT_EAGAIN_) || \ + MHD_SCKT_ERR_IS_((err),MHD_SCKT_EWOULDBLOCK_) ) +#endif /* MHD_SCKT_EAGAIN_ != MHD_SCKT_EWOULDBLOCK_ */ + +/** + * Check whether given socket error is any kind of "low resource" error. + * @return boolean true if @a err is any kind of "low resource" error, + * boolean false otherwise. + */ +#define MHD_SCKT_ERR_IS_LOW_RESOURCES_(err) ( MHD_SCKT_ERR_IS_((err),MHD_SCKT_EMFILE_) || \ + MHD_SCKT_ERR_IS_((err),MHD_SCKT_ENFILE_) || \ + MHD_SCKT_ERR_IS_((err),MHD_SCKT_ENOMEM_) || \ + MHD_SCKT_ERR_IS_((err),MHD_SCKT_ENOBUFS_) ) + +/** + * Check whether is given socket error is type of "incoming connection + * was disconnected before 'accept()' is called". + * @return boolean true is @a err match described socket error code, + * boolean false otherwise. + */ +#if defined(MHD_POSIX_SOCKETS) +# define MHD_SCKT_ERR_IS_DISCNN_BEFORE_ACCEPT_(err) MHD_SCKT_ERR_IS_((err),MHD_SCKT_ECONNABORTED_) +#elif defined(MHD_WINSOCK_SOCKETS) +# define MHD_SCKT_ERR_IS_DISCNN_BEFORE_ACCEPT_(err) MHD_SCKT_ERR_IS_((err),MHD_SCKT_ECONNRESET_) +#endif + +/** + * Check whether is given socket error is type of "connection was terminated + * by remote side". + * @return boolean true is @a err match described socket error code, + * boolean false otherwise. + */ +#define MHD_SCKT_ERR_IS_REMOTE_DISCNN_(err) ( MHD_SCKT_ERR_IS_((err),MHD_SCKT_ECONNRESET_) || \ + MHD_SCKT_ERR_IS_((err),MHD_SCKT_ECONNABORTED_)) + +/* Specific error code set */ + +/** + * Set socket's error code to ENOMEM or equivalent if ENOMEM is not + * available on platform. + */ +#if MHD_SCKT_MISSING_ERR_CODE_ != MHD_SCKT_ENOMEM_ +# define MHD_socket_set_error_to_ENOMEM() MHD_socket_set_error_(MHD_SCKT_ENOMEM_) +#elif MHD_SCKT_MISSING_ERR_CODE_ != MHD_SCKT_ENOBUFS_ +# define MHD_socket_set_error_to_ENOMEM() MHD_socket_set_error_(MHD_SCKT_ENOBUFS_) +#else +# warning No suitable replacement for ENOMEM error codes is found. Edit this file and add replacement code which is defined on system. +# define MHD_socket_set_error_to_ENOMEM() MHD_socket_set_error_(MHD_SCKT_ENOMEM_) +#endif #endif /* ! MHD_SOCKETS_H */ |