diff options
Diffstat (limited to 'imap/src/osdep/unix/ip4_unix.c')
| -rw-r--r-- | imap/src/osdep/unix/ip4_unix.c | 47 |
1 files changed, 26 insertions, 21 deletions
diff --git a/imap/src/osdep/unix/ip4_unix.c b/imap/src/osdep/unix/ip4_unix.c index 23d399e1..4ebb32b1 100644 --- a/imap/src/osdep/unix/ip4_unix.c +++ b/imap/src/osdep/unix/ip4_unix.c @@ -1,4 +1,18 @@ /* ======================================================================== + * Copyright 2008-2011 Mark Crispin + * ======================================================================== + */ + +/* + * Program: UNIX IPv4 routines + * + * Author: Mark Crispin + * + * Date: 18 December 2003 + * Last Edited: 23 May 2011 + * + * Previous versions of this file were: + * * Copyright 1988-2006 University of Washington * * Licensed under the Apache License, Version 2.0 (the "License"); @@ -11,20 +25,6 @@ * ======================================================================== */ -/* - * Program: UNIX IPv4 routines - * - * Author: Mark Crispin - * Networks and Distributed Computing - * Computing & Communications - * University of Washington - * Administration Building, AG-44 - * Seattle, WA 98195 - * Internet: MRC@CAC.Washington.EDU - * - * Date: 18 December 2003 - * Last Edited: 30 August 2006 - */ #define SADRLEN sizeof (struct sockaddr) @@ -37,22 +37,23 @@ /* IP abstraction layer */ -char *ip_sockaddrtostring (struct sockaddr *sadr); +char *ip_sockaddrtostring (struct sockaddr *sadr,char *buf); long ip_sockaddrtoport (struct sockaddr *sadr); void *ip_stringtoaddr (char *text,size_t *len,int *family); struct sockaddr *ip_newsockaddr (size_t *len); struct sockaddr *ip_sockaddr (int family,void *adr,size_t adrlen, unsigned short port,size_t *len); -char *ip_sockaddrtoname (struct sockaddr *sadr); +char *ip_sockaddrtoname (struct sockaddr *sadr,char *buf); void *ip_nametoaddr (char *name,size_t *len,int *family,char **canonical, - void **next); + void **next,void **cleanup); /* Return IP address string from socket address * Accepts: socket address + * buffer * Returns: IP address as name string */ -char *ip_sockaddrtostring (struct sockaddr *sadr) +char *ip_sockaddrtostring (struct sockaddr *sadr,char *buf) { return (sadr->sa_family == PF_INET) ? inet_ntoa (SADR4ADR (sadr)) : "NON-IPv4"; @@ -133,10 +134,11 @@ struct sockaddr *ip_sockaddr (int family,void *adr,size_t adrlen, /* Return name from socket address * Accepts: socket address + * buffer * Returns: canonical name for that address or NIL if none */ -char *ip_sockaddrtoname (struct sockaddr *sadr) +char *ip_sockaddrtoname (struct sockaddr *sadr,char *buf) { struct hostent *he; return ((sadr->sa_family == PF_INET) && @@ -151,14 +153,17 @@ char *ip_sockaddrtoname (struct sockaddr *sadr) * pointer to previous/returned address family * pointer to previous/returned canonical name * pointer to previous/return state for next-address calls + * pointer to cleanup * Returns: address with length/family/canonical updated if needed, or NIL */ void *ip_nametoaddr (char *name,size_t *len,int *family,char **canonical, - void **next) + void **next,void **cleanup) { char **adl,tmp[MAILTMPLEN]; struct hostent *he; + /* cleanup data never permitted */ + if (cleanup && *cleanup) abort (); if (name) { /* first lookup? */ /* yes, do case-independent lookup */ if ((strlen (name) < MAILTMPLEN) && @@ -166,7 +171,7 @@ void *ip_nametoaddr (char *name,size_t *len,int *family,char **canonical, adl = he->h_addr_list; if (len) *len = he->h_length; if (family) *family = he->h_addrtype; - if (canonical) *canonical = (char *) he->h_name; + if (canonical) *canonical = cpystr ((char *) he->h_name); if (next) *next = (void *) adl; } else { /* error */ |