12 # 0+%lze6]&n*bѿ o_I|+>%/* * ProFTPD - FTP server daemon * Copyright (c) 2003-2021 The ProFTPD Project team * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA. * * As a special exemption, The ProFTPD Project team and other respective * copyright holders give permission to link this program with OpenSSL, and * distribute the resulting executable, without including the source code for * OpenSSL in the source distribution. */ /* Network address API */ #ifndef PR_NETADDR_H #define PR_NETADDR_H #include "os.h" #include "pool.h" #ifndef INET_ADDRSTRLEN # define INET_ADDRSTRLEN 16 #endif /* INET_ADDRSTRLEN */ #ifndef INET6_ADDRSTRLEN # define INET6_ADDRSTRLEN 46 #endif /* INET6_ADDRSTRLEN */ struct netaddr_struc { int na_family; /* Note: this assumes that DNS names have a maximum size of * 256 characters. */ char na_dnsstr[256]; int na_have_dnsstr; #ifdef PR_USE_IPV6 char na_ipstr[INET6_ADDRSTRLEN]; #else char na_ipstr[INET_ADDRSTRLEN]; #endif /* PR_USE_IPV6 */ int na_have_ipstr; /* Note: at some point, this union might/should be replaced with * struct sockaddr_storage. Why? The sockaddr_storage struct is * better defined to be aligned on OS/arch boundaries, for more efficient * allocation/access. */ union { struct sockaddr_in v4; #ifdef PR_USE_IPV6 struct sockaddr_in6 v6; #endif /* PR_USE_IPV6 */ } na_addr; }; typedef struct netaddr_struc pr_netaddr_t; #ifndef HAVE_STRUCT_ADDRINFO struct addrinfo { /* AI_PASSIVE, AI_CANONNAME */ int ai_flags; /* AF/PF_xxx */ int ai_family; /* SOCK_xxx */ int ai_socktype; /* IPPROTO_xxx for IPv4/v6 */ int ai_protocol; /* Length of ai_addr */ int ai_addrlen; /* Canonical name for host */ char *ai_canonname; /* Binary address */ struct sockaddr *ai_addr; /* Next structure in the linked list */ struct addrinfo *ai_next; }; #endif /* HAVE_STRUCT_ADDRINFO */ #if defined(HAVE_GETADDRINFO) && !defined(PR_USE_GETADDRINFO) /* Use the system getaddrinfo(2) and freeaddrinfo(2) by redefining the * 'pr_getaddrinfo' and 'pr_freeaddrinfo' symbols to be 'getaddrinfo' and * 'freeaddrinfo', respectively. */ # define pr_getaddrinfo getaddrinfo # define pr_freeaddrinfo freeaddrinfo #else int pr_getaddrinfo(const char *, const char *, const struct addrinfo *, struct addrinfo **); void pr_freeaddrinfo(struct addrinfo *); #endif /* HAVE_GETNAMEINFO and !PR_USE_GETNAMEINFO */ /* These AI_ defines are for use by getaddrinfo(3). */ /* Indicates that the socket is intended for bind()+listen(). */ #ifndef AI_PASSIVE # define AI_PASSIVE 1 #endif /* AI_PASSIVE */ /* Return the canonical name. */ #ifndef AI_CANONNAME # define AI_CANONNAME 2 #endif /* AI_CANONNAME */ /* The following EAI_ defines are for errors. */ /* Host address family not supported. */ #ifndef EAI_ADDRFAMILY # define EAI_ADDRFAMILY -1 #endif /* EAI_ADDRFAMILY */ /* Temporary failure in name resolution. */ #ifndef EAI_AGAIN # define EAI_AGAIN -2 #endif /* EAI_AGAIN */ /* Invalid value for ai_flags. */ #ifndef EAI_BADFLAGS # define EAI_BADFLAGS -3 #endif /* EAI_BADFLAGS */ /* Non-recoverable failure in name resolution. */ #ifndef EAI_FAIL # define EAI_FAIL -4 #endif /* EAI_FAIL */ /* ai_family not supported. */ #ifndef EAI_FAMILY # define EAI_FAMILY -5 #endif /* EAI_FAMILY */