From f1f39911e0d2d88c98eae96a3eb14a53c664206f Mon Sep 17 00:00:00 2001 From: Karen Arutyunov Date: Sat, 30 Nov 2019 22:37:25 +0300 Subject: Upgrade to 12.1 --- libpq/win32/getaddrinfo.c | 412 ---------------------------------------------- 1 file changed, 412 deletions(-) delete mode 100644 libpq/win32/getaddrinfo.c (limited to 'libpq/win32/getaddrinfo.c') diff --git a/libpq/win32/getaddrinfo.c b/libpq/win32/getaddrinfo.c deleted file mode 100644 index 90c1b87..0000000 --- a/libpq/win32/getaddrinfo.c +++ /dev/null @@ -1,412 +0,0 @@ -/*------------------------------------------------------------------------- - * - * getaddrinfo.c - * Support getaddrinfo() on platforms that don't have it. - * - * We also supply getnameinfo() here, assuming that the platform will have - * it if and only if it has getaddrinfo(). If this proves false on some - * platform, we'll need to split this file and provide a separate configure - * test for getnameinfo(). - * - * Windows may or may not have these routines, so we handle Windows specially - * by dynamically checking for their existence. If they already exist, we - * use the Windows native routines, but if not, we use our own. - * - * - * Copyright (c) 2003-2016, PostgreSQL Global Development Group - * - * IDENTIFICATION - * src/port/getaddrinfo.c - * - *------------------------------------------------------------------------- - */ - -/* This is intended to be used in both frontend and backend, so use c.h */ -#include "c.h" - -#include -#include -#include -#include - -#include "getaddrinfo.h" -#include "libpq/pqcomm.h" /* needed for struct sockaddr_storage */ - - -#ifdef WIN32 -/* - * The native routines may or may not exist on the Windows platform we are on, - * so we dynamically look up the routines, and call them via function pointers. - * Here we need to declare what the function pointers look like - */ -typedef int (__stdcall * getaddrinfo_ptr_t) (const char *nodename, - const char *servname, - const struct addrinfo * hints, - struct addrinfo ** res); - -typedef void (__stdcall * freeaddrinfo_ptr_t) (struct addrinfo * ai); - -typedef int (__stdcall * getnameinfo_ptr_t) (const struct sockaddr * sa, - int salen, - char *host, int hostlen, - char *serv, int servlen, - int flags); - -/* static pointers to the native routines, so we only do the lookup once. */ -static getaddrinfo_ptr_t getaddrinfo_ptr = NULL; -static freeaddrinfo_ptr_t freeaddrinfo_ptr = NULL; -static getnameinfo_ptr_t getnameinfo_ptr = NULL; - - -static bool -haveNativeWindowsIPv6routines(void) -{ - void *hLibrary = NULL; - static bool alreadyLookedForIpv6routines = false; - - if (alreadyLookedForIpv6routines) - return (getaddrinfo_ptr != NULL); - - /* - * For Windows XP and Windows 2003 (and longhorn/vista), the IPv6 routines - * are present in the WinSock 2 library (ws2_32.dll). Try that first - */ - - hLibrary = LoadLibraryA("ws2_32"); - - if (hLibrary == NULL || GetProcAddress(hLibrary, "getaddrinfo") == NULL) - { - /* - * Well, ws2_32 doesn't exist, or more likely doesn't have - * getaddrinfo. - */ - if (hLibrary != NULL) - FreeLibrary(hLibrary); - - /* - * In Windows 2000, there was only the IPv6 Technology Preview look in - * the IPv6 WinSock library (wship6.dll). - */ - - hLibrary = LoadLibraryA("wship6"); - } - - /* If hLibrary is null, we couldn't find a dll with functions */ - if (hLibrary != NULL) - { - /* We found a dll, so now get the addresses of the routines */ - - getaddrinfo_ptr = (getaddrinfo_ptr_t) GetProcAddress(hLibrary, - "getaddrinfo"); - freeaddrinfo_ptr = (freeaddrinfo_ptr_t) GetProcAddress(hLibrary, - "freeaddrinfo"); - getnameinfo_ptr = (getnameinfo_ptr_t) GetProcAddress(hLibrary, - "getnameinfo"); - - /* - * If any one of the routines is missing, let's play it safe and - * ignore them all - */ - if (getaddrinfo_ptr == NULL || - freeaddrinfo_ptr == NULL || - getnameinfo_ptr == NULL) - { - FreeLibrary(hLibrary); - hLibrary = NULL; - getaddrinfo_ptr = NULL; - freeaddrinfo_ptr = NULL; - getnameinfo_ptr = NULL; - } - } - - alreadyLookedForIpv6routines = true; - return (getaddrinfo_ptr != NULL); -} -#endif - - -/* - * get address info for ipv4 sockets. - * - * Bugs: - only one addrinfo is set even though hintp is NULL or - * ai_socktype is 0 - * - AI_CANONNAME is not supported. - * - servname can only be a number, not text. - */ -int -getaddrinfo(const char *node, const char *service, - const struct addrinfo * hintp, - struct addrinfo ** res) -{ - struct addrinfo *ai; - struct sockaddr_in sin, - *psin; - struct addrinfo hints; - -#ifdef WIN32 - - /* - * If Windows has native IPv6 support, use the native Windows routine. - * Otherwise, fall through and use our own code. - */ - if (haveNativeWindowsIPv6routines()) - return (*getaddrinfo_ptr) (node, service, hintp, res); -#endif - - if (hintp == NULL) - { - memset(&hints, 0, sizeof(hints)); - hints.ai_family = AF_INET; - hints.ai_socktype = SOCK_STREAM; - } - else - memcpy(&hints, hintp, sizeof(hints)); - - if (hints.ai_family != AF_INET && hints.ai_family != AF_UNSPEC) - return EAI_FAMILY; - - if (hints.ai_socktype == 0) - hints.ai_socktype = SOCK_STREAM; - - if (!node && !service) - return EAI_NONAME; - - memset(&sin, 0, sizeof(sin)); - - sin.sin_family = AF_INET; - - if (node) - { - if (node[0] == '\0') - sin.sin_addr.s_addr = htonl(INADDR_ANY); - else if (hints.ai_flags & AI_NUMERICHOST) - { - if (!inet_aton(node, &sin.sin_addr)) - return EAI_NONAME; - } - else - { - struct hostent *hp; - -#ifdef FRONTEND - struct hostent hpstr; - char buf[BUFSIZ]; - int herrno = 0; - - pqGethostbyname(node, &hpstr, buf, sizeof(buf), - &hp, &herrno); -#else - hp = gethostbyname(node); -#endif - if (hp == NULL) - { - switch (h_errno) - { - case HOST_NOT_FOUND: - case NO_DATA: - return EAI_NONAME; - case TRY_AGAIN: - return EAI_AGAIN; - case NO_RECOVERY: - default: - return EAI_FAIL; - } - } - if (hp->h_addrtype != AF_INET) - return EAI_FAIL; - - memcpy(&(sin.sin_addr), hp->h_addr, hp->h_length); - } - } - else - { - if (hints.ai_flags & AI_PASSIVE) - sin.sin_addr.s_addr = htonl(INADDR_ANY); - else - sin.sin_addr.s_addr = htonl(INADDR_LOOPBACK); - } - - if (service) - sin.sin_port = htons((unsigned short) atoi(service)); - -#ifdef HAVE_STRUCT_SOCKADDR_STORAGE_SS_LEN - sin.sin_len = sizeof(sin); -#endif - - ai = malloc(sizeof(*ai)); - if (!ai) - return EAI_MEMORY; - - psin = malloc(sizeof(*psin)); - if (!psin) - { - free(ai); - return EAI_MEMORY; - } - - memcpy(psin, &sin, sizeof(*psin)); - - ai->ai_flags = 0; - ai->ai_family = AF_INET; - ai->ai_socktype = hints.ai_socktype; - ai->ai_protocol = hints.ai_protocol; - ai->ai_addrlen = sizeof(*psin); - ai->ai_addr = (struct sockaddr *) psin; - ai->ai_canonname = NULL; - ai->ai_next = NULL; - - *res = ai; - - return 0; -} - - -void -freeaddrinfo(struct addrinfo * res) -{ - if (res) - { -#ifdef WIN32 - - /* - * If Windows has native IPv6 support, use the native Windows routine. - * Otherwise, fall through and use our own code. - */ - if (haveNativeWindowsIPv6routines()) - { - (*freeaddrinfo_ptr) (res); - return; - } -#endif - - if (res->ai_addr) - free(res->ai_addr); - free(res); - } -} - - -const char * -gai_strerror(int errcode) -{ -#ifdef HAVE_HSTRERROR - int hcode; - - switch (errcode) - { - case EAI_NONAME: - hcode = HOST_NOT_FOUND; - break; - case EAI_AGAIN: - hcode = TRY_AGAIN; - break; - case EAI_FAIL: - default: - hcode = NO_RECOVERY; - break; - } - - return hstrerror(hcode); -#else /* !HAVE_HSTRERROR */ - - switch (errcode) - { - case EAI_NONAME: - return "Unknown host"; - case EAI_AGAIN: - return "Host name lookup failure"; - /* Errors below are probably WIN32 only */ -#ifdef EAI_BADFLAGS - case EAI_BADFLAGS: - return "Invalid argument"; -#endif -#ifdef EAI_FAMILY - case EAI_FAMILY: - return "Address family not supported"; -#endif -#ifdef EAI_MEMORY - case EAI_MEMORY: - return "Not enough memory"; -#endif -#if defined(EAI_NODATA) && EAI_NODATA != EAI_NONAME /* MSVC/WIN64 duplicate */ - case EAI_NODATA: - return "No host data of that type was found"; -#endif -#ifdef EAI_SERVICE - case EAI_SERVICE: - return "Class type not found"; -#endif -#ifdef EAI_SOCKTYPE - case EAI_SOCKTYPE: - return "Socket type not supported"; -#endif - default: - return "Unknown server error"; - } -#endif /* HAVE_HSTRERROR */ -} - -/* - * Convert an ipv4 address to a hostname. - * - * Bugs: - Only supports NI_NUMERICHOST and NI_NUMERICSERV behavior. - * It will never resolve a hostname. - * - No IPv6 support. - */ -int -getnameinfo(const struct sockaddr * sa, int salen, - char *node, int nodelen, - char *service, int servicelen, int flags) -{ -#ifdef WIN32 - - /* - * If Windows has native IPv6 support, use the native Windows routine. - * Otherwise, fall through and use our own code. - */ - if (haveNativeWindowsIPv6routines()) - return (*getnameinfo_ptr) (sa, salen, node, nodelen, - service, servicelen, flags); -#endif - - /* Invalid arguments. */ - if (sa == NULL || (node == NULL && service == NULL)) - return EAI_FAIL; - -#ifdef HAVE_IPV6 - if (sa->sa_family == AF_INET6) - return EAI_FAMILY; -#endif - - /* Unsupported flags. */ - if (flags & NI_NAMEREQD) - return EAI_AGAIN; - - if (node) - { - if (sa->sa_family == AF_INET) - { - if (inet_net_ntop(AF_INET, &((struct sockaddr_in *) sa)->sin_addr, - sa->sa_family == AF_INET ? 32 : 128, - node, nodelen) == NULL) - return EAI_MEMORY; - } - else - return EAI_MEMORY; - } - - if (service) - { - int ret = -1; - - if (sa->sa_family == AF_INET) - { - ret = snprintf(service, servicelen, "%d", - ntohs(((struct sockaddr_in *) sa)->sin_port)); - } - if (ret == -1 || ret >= servicelen) - return EAI_MEMORY; - } - - return 0; -} -- cgit v1.1