#ifndef __SETUP_ONCE_H #define __SETUP_ONCE_H /* $Id: setup_once.h,v 1.36 2009-06-19 00:41:03 yangtse Exp $ */ /* Copyright (C) 2004 - 2009 by Daniel Stenberg et al * * Permission to use, copy, modify, and distribute this software and its * documentation for any purpose and without fee is hereby granted, provided * that the above copyright notice appear in all copies and that both that * copyright notice and this permission notice appear in supporting * documentation, and that the name of M.I.T. not be used in advertising or * publicity pertaining to distribution of the software without specific, * written prior permission. M.I.T. makes no representations about the * suitability of this software for any purpose. It is provided "as is" * without express or implied warranty. */ /******************************************************************** * NOTICE * * ======== * * * * Content of header files lib/setup_once.h and ares/setup_once.h * * must be kept in sync. Modify the other one if you change this. * * * ********************************************************************/ /* * Inclusion of common header files. */ #include <stdio.h> #include <stdlib.h> #include <string.h> #include <stdarg.h> #include <ctype.h> #include <errno.h> #ifdef HAVE_SYS_TYPES_H #include <sys/types.h> #endif #ifdef NEED_MALLOC_H #include <malloc.h> #endif #ifdef NEED_MEMORY_H #include <memory.h> #endif #ifdef HAVE_SYS_STAT_H #include <sys/stat.h> #endif #ifdef HAVE_SYS_TIME_H #include <sys/time.h> #ifdef TIME_WITH_SYS_TIME #include <time.h> #endif #else #ifdef HAVE_TIME_H #include <time.h> #endif #endif #ifdef WIN32 #include <io.h> #include <fcntl.h> #endif #ifdef HAVE_STDBOOL_H #include <stdbool.h> #endif /* * Definition of timeval struct for platforms that don't have it. */ #ifndef HAVE_STRUCT_TIMEVAL struct timeval { long tv_sec; long tv_usec; }; #endif /* * If we have the MSG_NOSIGNAL define, make sure we use * it as the fourth argument of function send() */ #ifdef HAVE_MSG_NOSIGNAL #define SEND_4TH_ARG MSG_NOSIGNAL #else #define SEND_4TH_ARG 0 #endif #if defined(__minix) /* Minix doesn't support recv on TCP sockets */ #define sread(x,y,z) (ssize_t)read((RECV_TYPE_ARG1)(x), \ (RECV_TYPE_ARG2)(y), \ (RECV_TYPE_ARG3)(z)) #elif defined(HAVE_RECV) /* * The definitions for the return type and arguments types * of functions recv() and send() belong and come from the * configuration file. Do not define them in any other place. * * HAVE_RECV is defined if you have a function named recv() * which is used to read incoming data from sockets. If your * function has another name then don't define HAVE_RECV. * * If HAVE_RECV is defined then RECV_TYPE_ARG1, RECV_TYPE_ARG2, * RECV_TYPE_ARG3, RECV_TYPE_ARG4 and RECV_TYPE_RETV must also * be defined. * * HAVE_SEND is defined if you have a function named send() * which is used to write outgoing data on a connected socket. * If yours has another name then don't define HAVE_SEND. * * If HAVE_SEND is defined then SEND_TYPE_ARG1, SEND_QUAL_ARG2, * SEND_TYPE_ARG2, SEND_TYPE_ARG3, SEND_TYPE_ARG4 and * SEND_TYPE_RETV must also be defined. */ #if !defined(RECV_TYPE_ARG1) || \ !defined(RECV_TYPE_ARG2) || \ !defined(RECV_TYPE_ARG3) || \ !defined(RECV_TYPE_ARG4) || \ !defined(RECV_TYPE_RETV) /* */ Error Missing_definition_of_return_and_arguments_types_of_recv /* */ #else #define sread(x,y,z) (ssize_t)recv((RECV_TYPE_ARG1)(x), \ (RECV_TYPE_ARG2)(y), \ (RECV_TYPE_ARG3)(z), \ (RECV_TYPE_ARG4)(0)) #endif #else /* HAVE_RECV */ #ifndef sread /* */ Error Missing_definition_of_macro_sread /* */ #endif #endif /* HAVE_RECV */ #if defined(__minix) /* Minix doesn't support send on TCP sockets */ #define swrite(x,y,z) (ssize_t)write((SEND_TYPE_ARG1)(x), \ (SEND_TYPE_ARG2)(y), \ (SEND_TYPE_ARG3)(z)) #elif defined(HAVE_SEND) #if !defined(SEND_TYPE_ARG1) || \ !defined(SEND_QUAL_ARG2) || \ !defined(SEND_TYPE_ARG2) || \ !defined(SEND_TYPE_ARG3) || \ !defined(SEND_TYPE_ARG4) || \ !defined(SEND_TYPE_RETV) /* */ Error Missing_definition_of_return_and_arguments_types_of_send /* */ #else #define swrite(x,y,z) (ssize_t)send((SEND_TYPE_ARG1)(x), \ (SEND_TYPE_ARG2)(y), \ (SEND_TYPE_ARG3)(z), \ (SEND_TYPE_ARG4)(SEND_4TH_ARG)) #endif #else /* HAVE_SEND */ #ifndef swrite /* */ Error Missing_definition_of_macro_swrite /* */ #endif #endif /* HAVE_SEND */ #if 0 #if defined(HAVE_RECVFROM) /* * Currently recvfrom is only used on udp sockets. */ #if !defined(RECVFROM_TYPE_ARG1) || \ !defined(RECVFROM_TYPE_ARG2) || \ !defined(RECVFROM_TYPE_ARG3) || \ !defined(RECVFROM_TYPE_ARG4) || \ !defined(RECVFROM_TYPE_ARG5) || \ !defined(RECVFROM_TYPE_ARG6) || \ !defined(RECVFROM_TYPE_RETV) /* */ Error Missing_definition_of_return_and_arguments_types_of_recvfrom /* */ #else #define sreadfrom(s,b,bl,f,fl) (ssize_t)recvfrom((RECVFROM_TYPE_ARG1) (s), \ (RECVFROM_TYPE_ARG2 *)(b), \ (RECVFROM_TYPE_ARG3) (bl), \ (RECVFROM_TYPE_ARG4) (0), \ (RECVFROM_TYPE_ARG5 *)(f), \ (RECVFROM_TYPE_ARG6 *)(fl)) #endif #else /* HAVE_RECVFROM */ #ifndef sreadfrom /* */ Error Missing_definition_of_macro_sreadfrom /* */ #endif #endif /* HAVE_RECVFROM */ #ifdef RECVFROM_TYPE_ARG6_IS_VOID # define RECVFROM_ARG6_T int #else # define RECVFROM_ARG6_T RECVFROM_TYPE_ARG6 #endif #endif /* if 0 */ /* * Function-like macro definition used to close a socket. */ #if defined(HAVE_CLOSESOCKET) # define sclose(x) closesocket((x)) #elif defined(HAVE_CLOSESOCKET_CAMEL) # define sclose(x) CloseSocket((x)) #else # define sclose(x) close((x)) #endif /* * Uppercase macro versions of ANSI/ISO is*() functions/macros which * avoid negative number inputs with argument byte codes > 127. */ #define ISSPACE(x) (isspace((int) ((unsigned char)x))) #define ISDIGIT(x) (isdigit((int) ((unsigned char)x))) #define ISALNUM(x) (isalnum((int) ((unsigned char)x))) #define ISXDIGIT(x) (isxdigit((int) ((unsigned char)x))) #define ISGRAPH(x) (isgraph((int) ((unsigned char)x))) #define ISALPHA(x) (isalpha((int) ((unsigned char)x))) #define ISPRINT(x) (isprint((int) ((unsigned char)x))) #define ISUPPER(x) (isupper((int) ((unsigned char)x))) #define ISLOWER(x) (islower((int) ((unsigned char)x))) #define ISBLANK(x) (int)((((unsigned char)x) == ' ') || \ (((unsigned char)x) == '\t')) /* * Typedef to 'unsigned char' if bool is not an available 'typedefed' type. */ #ifndef HAVE_BOOL_T typedef unsigned char bool; #define HAVE_BOOL_T #endif /* * Default definition of uppercase TRUE and FALSE. */ #ifndef TRUE #define TRUE 1 #endif #ifndef FALSE #define FALSE 0 #endif /* * Typedef to 'int' if sig_atomic_t is not an available 'typedefed' type. */ #ifndef HAVE_SIG_ATOMIC_T typedef int sig_atomic_t; #define HAVE_SIG_ATOMIC_T #endif /* * Convenience SIG_ATOMIC_T definition */ #ifdef HAVE_SIG_ATOMIC_T_VOLATILE #define SIG_ATOMIC_T static sig_atomic_t #else #define SIG_ATOMIC_T static volatile sig_atomic_t #endif /* * Default return type for signal handlers. */ #ifndef RETSIGTYPE #define RETSIGTYPE void #endif /* * Macro used to include code only in debug builds. */ #ifdef DEBUGBUILD #define DEBUGF(x) x #else #define DEBUGF(x) do { } while (0) #endif /* * Macro used to include assertion code only in debug builds. */ #if defined(DEBUGBUILD) && defined(HAVE_ASSERT_H) #define DEBUGASSERT(x) assert(x) #else #define DEBUGASSERT(x) do { } while (0) #endif /* * Macro SOCKERRNO / SET_SOCKERRNO() returns / sets the *socket-related* errno * (or equivalent) on this platform to hide platform details to code using it. */ #ifdef USE_WINSOCK #define SOCKERRNO ((int)WSAGetLastError()) #define SET_SOCKERRNO(x) (WSASetLastError((int)(x))) #else #define SOCKERRNO (errno) #define SET_SOCKERRNO(x) (errno = (x)) #endif /* * Macro ERRNO / SET_ERRNO() returns / sets the NOT *socket-related* errno * (or equivalent) on this platform to hide platform details to code using it. */ #ifdef WIN32 #define ERRNO ((int)GetLastError()) #define SET_ERRNO(x) (SetLastError((DWORD)(x))) #else #define ERRNO (errno) #define SET_ERRNO(x) (errno = (x)) #endif /* * Portable error number symbolic names defined to Winsock error codes. */ #ifdef USE_WINSOCK #undef EBADF /* override definition in errno.h */ #define EBADF WSAEBADF #undef EINTR /* override definition in errno.h */ #define EINTR WSAEINTR #undef EINVAL /* override definition in errno.h */ #define EINVAL WSAEINVAL #define EWOULDBLOCK WSAEWOULDBLOCK #define EINPROGRESS WSAEINPROGRESS #define EALREADY WSAEALREADY #define ENOTSOCK WSAENOTSOCK #define EDESTADDRREQ WSAEDESTADDRREQ #define EMSGSIZE WSAEMSGSIZE #define EPROTOTYPE WSAEPROTOTYPE #define ENOPROTOOPT WSAENOPROTOOPT #define EPROTONOSUPPORT WSAEPROTONOSUPPORT #define ESOCKTNOSUPPORT WSAESOCKTNOSUPPORT #define EOPNOTSUPP WSAEOPNOTSUPP #define EPFNOSUPPORT WSAEPFNOSUPPORT #define EAFNOSUPPORT WSAEAFNOSUPPORT #define EADDRINUSE WSAEADDRINUSE #define EADDRNOTAVAIL WSAEADDRNOTAVAIL #define ENETDOWN WSAENETDOWN #define ENETUNREACH WSAENETUNREACH #define ENETRESET WSAENETRESET #define ECONNABORTED WSAECONNABORTED #define ECONNRESET WSAECONNRESET #define ENOBUFS WSAENOBUFS #define EISCONN WSAEISCONN #define ENOTCONN WSAENOTCONN #define ESHUTDOWN WSAESHUTDOWN #define ETOOMANYREFS WSAETOOMANYREFS #define ETIMEDOUT WSAETIMEDOUT #define ECONNREFUSED WSAECONNREFUSED #define ELOOP WSAELOOP #ifndef ENAMETOOLONG /* possible previous definition in errno.h */ #define ENAMETOOLONG WSAENAMETOOLONG #endif #define EHOSTDOWN WSAEHOSTDOWN #define EHOSTUNREACH WSAEHOSTUNREACH #ifndef ENOTEMPTY /* possible previous definition in errno.h */ #define ENOTEMPTY WSAENOTEMPTY #endif #define EPROCLIM WSAEPROCLIM #define EUSERS WSAEUSERS #define EDQUOT WSAEDQUOT #define ESTALE WSAESTALE #define EREMOTE WSAEREMOTE #endif /* * Actually use __32_getpwuid() on 64-bit VMS builds for getpwuid() */ #if defined(VMS) && \ defined(__INITIAL_POINTER_SIZE) && (__INITIAL_POINTER_SIZE == 64) #define getpwuid __32_getpwuid #endif /* * Macro argv_item_t hides platform details to code using it. */ #ifdef VMS #define argv_item_t __char_ptr32 #else #define argv_item_t char * #endif /* * We use this ZERO_NULL to avoid picky compiler warnings, * when assigning a NULL pointer to a function pointer var. */ #define ZERO_NULL 0 #endif /* __SETUP_ONCE_H */