diff options
Diffstat (limited to 'src/port/getaddrinfo.c')
| -rwxr-xr-x | src/port/getaddrinfo.c | 225 |
1 files changed, 0 insertions, 225 deletions
diff --git a/src/port/getaddrinfo.c b/src/port/getaddrinfo.c deleted file mode 100755 index 8f9db2a..0000000 --- a/src/port/getaddrinfo.c +++ /dev/null @@ -1,225 +0,0 @@ -/* - Copyright (C) 2008 Andreas Baumann <abaumann@yahoo.com> - - 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 3 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, see <http://www.gnu.org/licenses/>. -*/ - -#include "port/getaddrinfo.h" - -#if !defined HAVE_GETADDRINFO || defined TEST_GETADDRINFO - -#include "port/string.h" /* for memset, memcpy */ -#include "port/stdlib.h" /* for atoi, itoa, malloc, free, NULL */ -#include "port/unused.h" - -#include <netinet/in.h> /* for struct sockaddr_in */ - -int wolf_port_getaddrinfo( const char *host_name, - const char *service_name, - const struct wolf_port_addrinfo *hintp, - struct wolf_port_addrinfo **result ) { - struct wolf_port_addrinfo *ai; - struct sockaddr_in sin, - *psin; - struct wolf_port_addrinfo hints; - - if( hintp == NULL ) { - memset( &hints, 0, sizeof( struct wolf_port_addrinfo ) ); - hints.ai_family = AF_INET; - hints.ai_socktype = SOCK_STREAM; - } else { - memcpy( &hints, hintp, sizeof( struct wolf_port_addrinfo ) ); - } - - 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( ( host_name == NULL ) && ( service_name == NULL ) ) { - return EAI_NONAME; - } - - memset( &sin, 0, sizeof( struct sockaddr_in) ); - - sin.sin_family = AF_INET; - - if( host_name != NULL ) { - if( host_name[0] == '\0' ) { - sin.sin_addr.s_addr = htonl( INADDR_ANY ); - } else if( hints.ai_flags & AI_NUMERICHOST ) { - if( !inet_aton( host_name, &sin.sin_addr ) ) { - return EAI_FAIL; - } - } else { - struct hostent *hp; - - hp = gethostbyname( host_name ); - - 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_name != NULL ) { - sin.sin_port = htons( (unsigned short)atoi( service_name ) ); - } - - ai = (struct wolf_port_addrinfo *)malloc( sizeof( struct wolf_port_addrinfo ) ); - if( ai == NULL ) { - return EAI_MEMORY; - } - - psin = (struct sockaddr_in *)malloc( sizeof( struct sockaddr_in ) ); - if (!psin) - { - free(ai); - return EAI_MEMORY; - } - - memcpy( psin, &sin, sizeof( struct sockaddr_in ) ); - - 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; - - *result = ai; - - return 0; -} - -void wolf_port_freeaddrinfo( struct wolf_port_addrinfo *result ) { - /* stub doesn't have more than one element in list, adapt if you change that! */ - if( result != NULL ) { - if( result->ai_addr != NULL ) { - free( result->ai_addr ); - } - free( result ); - } -} - -/* - * Convert an ipv4 address to a hostname. - * - * Bugs: - Only supports NI_NUMERICHOST and NI_NUMERICSERV - * It will never resolv a hostname. - * - No IPv6 support. - */ -extern int getnameinfo( const struct sockaddr *sa, socklen_t salen, - char *host, size_t hostlen, - char *serv, size_t servlen, - int flags ) { - WOLF_UNUSED( salen ); - - /* Invalid arguments. */ - if( sa == NULL || ( host == NULL && serv == NULL ) ) { - return EAI_FAIL; - } - - /* We don't support those. */ - if( ( host && !( flags & NI_NUMERICHOST ) ) - || ( serv && !( flags & NI_NUMERICSERV ) ) ) { - return EAI_FAIL; - } - -#ifdef HAVE_IPV6 - /* no IPV6 here */ - if( sa->sa_family == AF_INET6 ) { - return EAI_FAMILY; - } -#endif - - if( host != NULL ) { - if( sa->sa_family == AF_INET ) { - char *p; - - /* maximal size of an IP4 addres 255.255.255.255.255 */ - if( hostlen < 16 ) { - return EAI_MEMORY; - } - - p = inet_ntoa( ( (const struct sockaddr_in * ) sa)->sin_addr ); - - strlcpy( host, p, hostlen ); - } - } - - if( serv != NULL ) { - if (sa->sa_family == AF_INET ) { - /* maximal number of digits in an unsigned short */ - if( servlen < 10 ) { - return EAI_MEMORY; - } - (void)itoa( ntohs( ( (const struct sockaddr_in * )sa)->sin_port ), serv, servlen ); - } - } - - return 0; -} - -const char *wolf_port_gai_strerror( int errcode ) { - switch( errcode ) { - case EAI_NONAME: - return "host nor service provided, or not known"; - - case EAI_AGAIN: - return "temporary failure in name resolution"; - - case EAI_FAIL: - return "non-recoverable failure in name resultion"; - - case EAI_FAMILY: - return "socket family not supported"; - - case EAI_MEMORY: - return "memory allocation failure"; - - default: - return "Unknown GAI error"; - } -} - -#endif /* !defined HAVE_GETADDRINFO || defined TEST_GETADDRINFO */ |