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- /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
- /*
- * The contents of this file are subject to the Netscape Public License
- * Version 1.0 (the "NPL"); you may not use this file except in
- * compliance with the NPL. You may obtain a copy of the NPL at
- * http://www.mozilla.org/NPL/
- *
- * Software distributed under the NPL is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
- * for the specific language governing rights and limitations under the
- * NPL.
- *
- * The Initial Developer of this code under the NPL is Netscape
- * Communications Corporation. Portions created by Netscape are
- * Copyright (C) 1998 Netscape Communications Corporation. All Rights
- * Reserved.
- */
-
- #include "primpl.h"
-
- #include <string.h>
-
- /*
- * On Unix, the error code for gethostbyname() and gethostbyaddr()
- * is returned in the global variable h_errno, instead of the usual
- * errno.
- */
- #if defined(XP_UNIX)
- #if defined(_PR_NEED_H_ERRNO)
- extern int h_errno;
- #endif
- #define _MD_GETHOST_ERRNO() h_errno
- #else
- #define _MD_GETHOST_ERRNO() _MD_ERRNO()
- #endif
-
- #if defined(_PR_NO_PREEMPT)
- #define LOCK_DNS()
- #define UNLOCK_DNS()
- #else
- PRLock *_pr_dnsLock = NULL;
- #define LOCK_DNS() PR_Lock(_pr_dnsLock)
- #define UNLOCK_DNS() PR_Unlock(_pr_dnsLock)
- #endif /* defined(_PR_NO_PREEMPT) */
-
- #if defined(XP_UNIX)
- #include <signal.h>
-
- /*
- ** Unix's, as a rule, have a bug in their select code: if a timer
- ** interrupt occurs and you have SA_RESTART set on your signal, select
- ** forgets how much time has elapsed and restarts the system call from
- ** the beginning. This can cause a call to select to *never* time out.
- **
- ** Because we aren't certain that select is wrapped properly in this code
- ** we disable the clock while a dns operation is occuring. This sucks and
- ** can be tossed when implement our own dns code that calls our own
- ** PR_Poll.
- */
-
- static sigset_t timer_set;
- #define DISABLECLOCK(_set) sigprocmask(SIG_BLOCK, &timer_set, _set)
- #define ENABLECLOCK(_set) sigprocmask(SIG_SETMASK, _set, 0)
-
- #endif /* XP_UNIX */
-
- /*
- * Some platforms have the reentrant getprotobyname_r() and
- * getprotobynumber_r(). However, they come in two flavors.
- * Some return a pointer to struct protoent, others return
- * an int.
- */
-
- #if defined(SOLARIS) \
- || (defined(LINUX2_0) && defined(_REENTRANT) \
- && !(defined(__GLIBC__) && __GLIBC__ >= 2))
- #define _PR_HAVE_GETPROTO_R
- #define _PR_HAVE_GETPROTO_R_POINTER
- #endif
-
- #if defined(OSF1) || (defined(AIX) && defined(_THREAD_SAFE)) \
- || (defined(HPUX10_10) && defined(_REENTRANT)) \
- || (defined(HPUX10_20) && defined(_REENTRANT))
- #define _PR_HAVE_GETPROTO_R
- #define _PR_HAVE_GETPROTO_R_INT
- #endif
-
- #if (defined(LINUX2_0) && defined(__GLIBC__) && __GLIBC__ >= 2)
- #define _PR_HAVE_GETPROTO_R
- #define _PR_HAVE_5_ARG_GETPROTO_R
- #endif
-
- #if !defined(_PR_HAVE_GETPROTO_R)
- PRLock* _getproto_lock = NULL;
- #endif
-
- #if defined(_PR_INET6)
- PRBool _pr_ipv6_enabled = PR_FALSE;
- #if defined(AIX)
- const struct in6_addr in6addr_any = IN6ADDR_ANY_INIT;
- const struct in6_addr in6addr_loopback = IN6ADDR_LOOPBACK_INIT;
- #else
- extern const struct in6_addr in6addr_any;
- extern const struct in6_addr in6addr_loopback;
- #endif /* AIX */
- #endif /* _PR_INET6 */
-
- void _PR_InitNet(void)
- {
- #if defined(XP_UNIX)
- #ifdef HAVE_NETCONFIG
- /*
- * This one-liner prevents the endless re-open's and re-read's of
- * /etc/netconfig on EACH and EVERY call to accept(), connect(), etc.
- */
- (void)setnetconfig();
- #endif
- sigemptyset(&timer_set);
- sigaddset(&timer_set, SIGALRM);
- #endif
- #if !defined(_PR_NO_PREEMPT)
- _pr_dnsLock = PR_NewLock();
- #endif
- #if !defined(_PR_HAVE_GETPROTO_R)
- _getproto_lock = PR_NewLock();
- #endif
-
- }
-
- PR_IMPLEMENT(PRStatus) PR_SetIPv6Enable(PRBool itIs)
- {
- #if defined(XP_MAC)
- #pragma unused (itIs)
- #endif
-
- #if defined(_PR_INET6)
- _pr_ipv6_enabled = itIs;
- return PR_SUCCESS;
- #else /* defined(_PR_INET6) */
- PR_SetError(PR_PROTOCOL_NOT_SUPPORTED_ERROR, 0);
- return PR_FAILURE;
- #endif /* defined(_PR_INET6) */
- } /* PR_SetIPv6Enable */
-
- PR_IMPLEMENT(PRStatus) PR_GetHostName(char *name, PRUint32 namelen)
- {
- #if defined(DEBUG)
- static PRBool warn = PR_TRUE;
- if (warn) warn = _PR_Obsolete("PR_GetHostName()", "PR_GetSystemInfo()");
- #endif
- return PR_GetSystemInfo(PR_SI_HOSTNAME, name, namelen);
- }
-
- /*
- ** Allocate space from the buffer, aligning it to "align" before doing
- ** the allocation. "align" must be a power of 2.
- */
- static char *Alloc(PRIntn amount, char **bufp, PRIntn *buflenp, PRIntn align)
- {
- char *buf = *bufp;
- PRIntn buflen = *buflenp;
-
- if (align && ((long)buf & (align - 1))) {
- PRIntn skip = align - ((ptrdiff_t)buf & (align - 1));
- if (buflen < skip) {
- return 0;
- }
- buf += skip;
- buflen -= skip;
- }
- if (buflen < amount) {
- return 0;
- }
- *bufp = buf + amount;
- *buflenp = buflen - amount;
- return buf;
- }
-
- /*
- ** Copy a hostent, and all of the memory that it refers to into
- ** (hopefully) stacked buffers.
- */
- static PRStatus CopyHostent(
- struct hostent *from, char *buf, PRIntn bufsize, PRHostEnt *to)
- {
- PRIntn len, na;
- char **ap;
-
- /* Do the easy stuff */
- to->h_addrtype = from->h_addrtype;
- to->h_length = from->h_length;
-
- /* Copy the official name */
- if (!from->h_name) return PR_FAILURE;
- len = strlen(from->h_name) + 1;
- to->h_name = Alloc(len, &buf, &bufsize, 0);
- if (!to->h_name) return PR_FAILURE;
- memcpy(to->h_name, from->h_name, len);
-
- /* Count the aliases, then allocate storage for the pointers */
- for (na = 1, ap = from->h_aliases; *ap != 0; na++, ap++){;} /* nothing to execute */
- to->h_aliases = (char**)Alloc(
- na * sizeof(char*), &buf, &bufsize, sizeof(char**));
- if (!to->h_aliases) return PR_FAILURE;
-
- /* Copy the aliases, one at a time */
- for (na = 0, ap = from->h_aliases; *ap != 0; na++, ap++) {
- len = strlen(*ap) + 1;
- to->h_aliases[na] = Alloc(len, &buf, &bufsize, 0);
- if (!to->h_aliases[na]) return PR_FAILURE;
- memcpy(to->h_aliases[na], *ap, len);
- }
- to->h_aliases[na] = 0;
-
- /* Count the addresses, then allocate storage for the pointers */
- for (na = 1, ap = from->h_addr_list; *ap != 0; na++, ap++){;} /* nothing to execute */
- to->h_addr_list = (char**)Alloc(
- na * sizeof(char*), &buf, &bufsize, sizeof(char**));
- if (!to->h_addr_list) return PR_FAILURE;
-
- /* Copy the addresses, one at a time */
- for (na = 0, ap = from->h_addr_list; *ap != 0; na++, ap++) {
- to->h_addr_list[na] = Alloc(to->h_length, &buf, &bufsize, 0);
- if (!to->h_addr_list[na]) return PR_FAILURE;
- memcpy(to->h_addr_list[na], *ap, to->h_length);
- }
- to->h_addr_list[na] = 0;
- return PR_SUCCESS;
- }
-
- #if !defined(_PR_HAVE_GETPROTO_R)
- /*
- ** Copy a protoent, and all of the memory that it refers to into
- ** (hopefully) stacked buffers.
- */
- static PRStatus CopyProtoent(
- struct protoent *from, char *buf, PRIntn bufsize, PRProtoEnt *to)
- {
- PRIntn len, na;
- char **ap;
-
- /* Do the easy stuff */
- to->p_num = from->p_proto;
-
- /* Copy the official name */
- if (!from->p_name) return PR_FAILURE;
- len = strlen(from->p_name) + 1;
- to->p_name = Alloc(len, &buf, &bufsize, 0);
- if (!to->p_name) return PR_FAILURE;
- memcpy(to->p_name, from->p_name, len);
-
- /* Count the aliases, then allocate storage for the pointers */
- for (na = 1, ap = from->p_aliases; *ap != 0; na++, ap++){;} /* nothing to execute */
- to->p_aliases = (char**)Alloc(
- na * sizeof(char*), &buf, &bufsize, sizeof(char**));
- if (!to->p_aliases) return PR_FAILURE;
-
- /* Copy the aliases, one at a time */
- for (na = 0, ap = from->p_aliases; *ap != 0; na++, ap++) {
- len = strlen(*ap) + 1;
- to->p_aliases[na] = Alloc(len, &buf, &bufsize, 0);
- if (!to->p_aliases[na]) return PR_FAILURE;
- memcpy(to->p_aliases[na], *ap, len);
- }
- to->p_aliases[na] = 0;
-
- return PR_SUCCESS;
- }
- #endif /* !defined(_PR_HAVE_GETPROTO_R) */
-
- PR_IMPLEMENT(PRStatus) PR_GetHostByName(
- const char *name, char *buf, PRIntn bufsize, PRHostEnt *hp)
- {
- struct hostent *h;
- PRStatus rv = PR_FAILURE;
- #ifdef XP_UNIX
- sigset_t oldset;
- #endif
-
- if (!_pr_initialized) _PR_ImplicitInitialization();
-
- #ifdef XP_UNIX
- DISABLECLOCK(&oldset);
- #endif
- LOCK_DNS();
-
- #ifdef _PR_INET6
- if (_pr_ipv6_enabled)
- {
- h = gethostbyname2(name, AF_INET6);
- if (NULL == h)
- {
- h = gethostbyname2(name, AF_INET);
- }
- }
- else
- {
- h = gethostbyname(name);
- }
- #else
- h = gethostbyname(name);
- #endif /* _PR_INET6 */
-
- if (NULL == h)
- PR_SetError(PR_DIRECTORY_LOOKUP_ERROR, _MD_GETHOST_ERRNO());
- else
- {
- rv = CopyHostent(h, buf, bufsize, hp);
- if (PR_SUCCESS != rv)
- PR_SetError(PR_INSUFFICIENT_RESOURCES_ERROR, 0);
- }
- UNLOCK_DNS();
- #ifdef XP_UNIX
- ENABLECLOCK(&oldset);
- #endif
- return rv;
- }
-
- PR_IMPLEMENT(PRStatus) PR_GetHostByAddr(
- const PRNetAddr *hostaddr, char *buf, PRIntn bufsize, PRHostEnt *hostentry)
- {
- struct hostent *h;
- PRStatus rv = PR_FAILURE;
- const void *addr;
- int addrlen;
- #ifdef XP_UNIX
- sigset_t oldset;
- #endif
-
- if (!_pr_initialized) _PR_ImplicitInitialization();
-
- #ifdef XP_UNIX
- DISABLECLOCK(&oldset);
- #endif
- LOCK_DNS();
- #if defined(_PR_INET6)
- if (hostaddr->raw.family == AF_INET6)
- {
- addr = &hostaddr->ipv6.ip;
- addrlen = sizeof(hostaddr->ipv6.ip);
- }
- else
- #endif /* defined(_PR_INET6) */
- {
- PR_ASSERT(hostaddr->raw.family == AF_INET);
- addr = &hostaddr->inet.ip;
- addrlen = sizeof(hostaddr->inet.ip);
- }
-
- h = gethostbyaddr(addr, addrlen, hostaddr->raw.family);
- if (NULL == h) PR_SetError(PR_DIRECTORY_LOOKUP_ERROR, _MD_GETHOST_ERRNO());
- else
- {
- rv = CopyHostent(h, buf, bufsize, hostentry);
- if (PR_SUCCESS != rv) {
- PR_SetError(PR_INSUFFICIENT_RESOURCES_ERROR, 0);
- }
- }
- UNLOCK_DNS();
- #ifdef XP_UNIX
- ENABLECLOCK(&oldset);
- #endif
- return rv;
- }
-
- /******************************************************************************/
- /*
- * Some systems define a reentrant version of getprotobyname(). Too bad
- * the signature isn't always the same. But hey, they tried. If there
- * is such a definition, use it. Otherwise, grab a lock and do it here.
- */
- /******************************************************************************/
-
- #if !defined(_PR_HAVE_GETPROTO_R)
- /*
- * This may seem like a silly thing to do, but the compiler SHOULD
- * complain if getprotobyname_r() is implemented on some system and
- * we're not using it. For sure these signatures are different than
- * any usable implementation.
- */
-
- static struct protoent *getprotobyname_r(const char* name)
- {
- return getprotobyname(name);
- } /* getprotobyname_r */
-
- static struct protoent *getprotobynumber_r(PRInt32 number)
- {
- return getprotobynumber(number);
- } /* getprotobynumber_r */
-
- #endif /* !defined(_PR_HAVE_GETPROTO_R) */
-
- PR_IMPLEMENT(PRStatus) PR_GetProtoByName(
- const char* name, char* buffer, PRInt32 buflen, PRProtoEnt* result)
- {
- PRStatus rv = PR_SUCCESS;
- struct protoent* res = (struct protoent*)result;
-
- if (!_pr_initialized) _PR_ImplicitInitialization();
-
- #if defined(_PR_HAVE_GETPROTO_R_INT)
- {
- /*
- ** The protoent_data has a pointer as the first field.
- ** That implies the buffer better be aligned, and char*
- ** doesn't promise much.
- */
- PRUptrdiff aligned = (PRUptrdiff)buffer;
- if (0 != (aligned & (sizeof(struct protoent_data*) - 1)))
- {
- aligned += sizeof(struct protoent_data*) - 1;
- aligned &= ~(sizeof(struct protoent_data*) - 1);
- buflen -= (aligned - (PRUptrdiff)buffer);
- buffer = (char*)aligned;
- }
- }
- #endif /* defined(_PR_HAVE_GETPROTO_R_INT) */
-
- PR_ASSERT(PR_NETDB_BUF_SIZE <= buflen);
- if (PR_NETDB_BUF_SIZE > buflen)
- {
- PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
- return PR_FAILURE;
- }
-
- #if defined(_PR_HAVE_GETPROTO_R_POINTER)
- if (NULL == getprotobyname_r(name, res, buffer, buflen))
- {
- PR_SetError(PR_DIRECTORY_LOOKUP_ERROR, _MD_ERRNO());
- return PR_FAILURE;
- }
- #elif defined(_PR_HAVE_GETPROTO_R_INT)
- /*
- ** The buffer needs to be zero'd, and it should be
- ** at least the size of a struct protoent_data.
- */
- memset(buffer, 0, buflen);
- if (-1 == getprotobyname_r(name, res, (struct protoent_data*)buffer))
- {
- PR_SetError(PR_DIRECTORY_LOOKUP_ERROR, _MD_ERRNO());
- return PR_FAILURE;
- }
- #elif defined(_PR_HAVE_5_ARG_GETPROTO_R)
- /* The 5th argument for getprotobyname_r() cannot be NULL */
- if (-1 == getprotobyname_r(name, res, buffer, buflen, &res))
- {
- PR_SetError(PR_DIRECTORY_LOOKUP_ERROR, _MD_ERRNO());
- return PR_FAILURE;
- }
- #else /* do it the hard way */
- {
- struct protoent *staticBuf;
- PR_Lock(_getproto_lock);
- staticBuf = getprotobyname_r(name);
- if (NULL == staticBuf)
- {
- rv = PR_FAILURE;
- PR_SetError(PR_DIRECTORY_LOOKUP_ERROR, _MD_ERRNO());
- }
- else
- {
- rv = CopyProtoent(staticBuf, buffer, buflen, result);
- if (PR_FAILURE == rv)
- PR_SetError(PR_INSUFFICIENT_RESOURCES_ERROR, 0);
- }
- PR_Unlock(_getproto_lock);
- }
- #endif /* all that */
- return rv;
- }
-
- PR_IMPLEMENT(PRStatus) PR_GetProtoByNumber(
- PRInt32 number, char* buffer, PRInt32 buflen, PRProtoEnt* result)
- {
- PRStatus rv = PR_SUCCESS;
- struct protoent* res = (struct protoent*)result;
-
- if (!_pr_initialized) _PR_ImplicitInitialization();
-
- #if defined(_PR_HAVE_GETPROTO_R_INT)
- {
- /*
- ** The protoent_data has a pointer as the first field.
- ** That implies the buffer better be aligned, and char*
- ** doesn't promise much.
- */
- PRUptrdiff aligned = (PRUptrdiff)buffer;
- if (0 != (aligned & (sizeof(struct protoent_data*) - 1)))
- {
- aligned += sizeof(struct protoent_data*) - 1;
- aligned &= ~(sizeof(struct protoent_data*) - 1);
- buflen -= (aligned - (PRUptrdiff)buffer);
- buffer = (char*)aligned;
- }
- }
- #endif /* defined(_PR_HAVE_GETPROTO_R_INT) */
-
- PR_ASSERT(PR_NETDB_BUF_SIZE <= buflen);
- if (PR_NETDB_BUF_SIZE > buflen)
- {
- PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
- return PR_FAILURE;
- }
-
- #if defined(_PR_HAVE_GETPROTO_R_POINTER)
- if (NULL == getprotobynumber_r(number, res, buffer, buflen))
- {
- PR_SetError(PR_DIRECTORY_LOOKUP_ERROR, _MD_ERRNO());
- return PR_FAILURE;
- }
-
- #elif defined(_PR_HAVE_GETPROTO_R_INT)
- /*
- ** The buffer needs to be zero'd for these OS's.
- */
- memset(buffer, 0, buflen);
- if (-1 == getprotobynumber_r(number, res, (struct protoent_data*)buffer))
- {
- PR_SetError(PR_DIRECTORY_LOOKUP_ERROR, _MD_ERRNO());
- return PR_FAILURE;
- }
- #elif defined(_PR_HAVE_5_ARG_GETPROTO_R)
- /* The 5th argument for getprotobynumber_r() cannot be NULL */
- if (-1 == getprotobynumber_r(number, res, buffer, buflen, &res))
- {
- PR_SetError(PR_DIRECTORY_LOOKUP_ERROR, _MD_ERRNO());
- return PR_FAILURE;
- }
- #else /* do it the hard way */
- {
- struct protoent *staticBuf;
- PR_Lock(_getproto_lock);
- staticBuf = getprotobynumber_r(number);
- if (NULL == staticBuf)
- {
- rv = PR_FAILURE;
- PR_SetError(PR_DIRECTORY_LOOKUP_ERROR, _MD_ERRNO());
- }
- else
- {
- rv = CopyProtoent(staticBuf, buffer, buflen, result);
- if (PR_FAILURE == rv)
- PR_SetError(PR_INSUFFICIENT_RESOURCES_ERROR, 0);
- }
- PR_Unlock(_getproto_lock);
- }
- #endif /* all that crap */
- return rv;
-
- }
-
- PR_IMPLEMENT(PRUintn) PR_NetAddrSize(const PRNetAddr* addr)
- {
- PRUintn addrsize;
-
- #if defined(_PR_INET6)
-
- if ((AF_INET == (0x00ff & addr->raw.family))
- || (AF_INET == (0x00ff & ntohs(addr->raw.family))))
- addrsize = sizeof(struct sockaddr_in);
- else if ((AF_INET6 == (0x00ff & addr->raw.family))
- || (AF_INET6 == (0x00ff & ntohs(addr->raw.family))))
- addrsize = sizeof(struct sockaddr_in6);
- else addrsize = 0;
-
- #else /* defined(_PR_INET6) */
-
- #if defined(XP_MAC)
- #pragma unused (addr)
- #endif
-
- addrsize = sizeof(struct sockaddr_in);
-
- #endif /* defined(_PR_INET6) */
-
- return addrsize;
- } /* PR_NetAddrSize */
-
- PR_IMPLEMENT(PRIntn) PR_EnumerateHostEnt(
- PRIntn enumIndex, const PRHostEnt *hostEnt, PRUint16 port, PRNetAddr *address)
- {
- void *addr = hostEnt->h_addr_list[enumIndex++];
- memset(address, 0, sizeof(PRNetAddr));
- if (NULL == addr) enumIndex = 0;
- else
- {
- #if defined(_PR_INET6)
- if (_pr_ipv6_enabled)
- {
- address->ipv6.family = AF_INET6;
- address->ipv6.port = htons(port);
- if (AF_INET6 == hostEnt->h_addrtype)
- memcpy(&address->ipv6.ip, addr, hostEnt->h_length);
- else
- {
- unsigned char *start = (unsigned char *) &address->ipv6.ip;
- PR_ASSERT(AF_INET == hostEnt->h_addrtype);
- memset(start, 0, 10);
- memset(start + 10, 0xff, 2);
- memcpy(start + 12, addr, hostEnt->h_length);
- PR_ASSERT(IN6_IS_ADDR_V4MAPPED(&address->ipv6.ip));
- }
- }
- else
- #endif /* defined(_PR_INET6) */
- {
- PR_ASSERT(AF_INET == hostEnt->h_addrtype);
- address->inet.family = hostEnt->h_addrtype;
- address->inet.port = htons(port);
- memcpy(&address->inet.ip, addr, hostEnt->h_length);
- }
- }
- return enumIndex;
- } /* PR_EnumerateHostEnt */
-
- PR_IMPLEMENT(PRStatus) PR_InitializeNetAddr(
- PRNetAddrValue val, PRUint16 port, PRNetAddr *addr)
- {
- PRStatus rv = PR_SUCCESS;
- if (!_pr_initialized) _PR_ImplicitInitialization();
-
- #if defined(_PR_INET6)
- if (_pr_ipv6_enabled)
- {
- addr->ipv6.family = AF_INET6;
- addr->ipv6.port = htons(port);
- switch (val)
- {
- case PR_IpAddrNull:
- break; /* don't overwrite the address */
- case PR_IpAddrAny:
- addr->ipv6.ip = in6addr_any;
- break;
- case PR_IpAddrLoopback:
- addr->ipv6.ip = in6addr_loopback;
- break;
- default:
- PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
- rv = PR_FAILURE;
- }
- }
- else
- #endif /* defined(_PR_INET6) */
- {
- addr->inet.family = AF_INET;
- addr->inet.port = htons(port);
- switch (val)
- {
- case PR_IpAddrNull:
- break; /* don't overwrite the address */
- case PR_IpAddrAny:
- addr->inet.ip = htonl(INADDR_ANY);
- break;
- case PR_IpAddrLoopback:
- addr->inet.ip = htonl(INADDR_LOOPBACK);
- break;
- default:
- PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
- rv = PR_FAILURE;
- }
- }
- return rv;
- } /* PR_InitializeNetAddr */
-
- PR_IMPLEMENT(PRNetAddr*) PR_CreateNetAddr(PRNetAddrValue val, PRUint16 port)
- {
- PRNetAddr *addr = NULL;
- if ((PR_IpAddrAny == val) || (PR_IpAddrLoopback == val))
- {
- addr = PR_NEWZAP(PRNetAddr);
- if (NULL == addr)
- PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0);
- else
- if (PR_FAILURE == PR_InitializeNetAddr(val, port, addr))
- PR_DELETE(addr); /* and that will make 'addr' == NULL */
- }
- else
- PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
- return addr;
- } /* PR_CreateNetAddr */
-
- PR_IMPLEMENT(PRStatus) PR_DestroyNetAddr(PRNetAddr *addr)
- {
- PR_Free(addr);
- return PR_SUCCESS;
- } /* PR_DestroyNetAddr */
-
- PR_IMPLEMENT(PRStatus) PR_StringToNetAddr(const char *string, PRNetAddr *addr)
- {
- /*
- ** If we're built to support IPv6 addressing AND it's currently enabled,
- ** then all addresses are of the IPv6 addressing family. Both are required
- ** before anything overt happens.
- */
- PRStatus status = PR_InitializeNetAddr(PR_IpAddrNull, 0, addr);
-
- PR_ASSERT(PR_SUCCESS == status);
- if (PR_SUCCESS != status) return status;
-
- #if defined(_PR_INET6)
-
- if (_pr_ipv6_enabled)
- {
- /*
- ** Okay, we're doing it.
- */
- PRIntn rv = inet_pton(AF_INET6, string, &addr->ipv6.ip);
- if (1 != rv)
- {
- /*
- * rv is 0 if the string argument is not a valid IPv4 or IPv6
- * address string.
- * rv is -1 with errno set to EADNOSUPPORT if the af argument is
- * not a known address family.
- */
- PRIntn syserrno = (-1 == rv) ? errno : 0;
- PR_SetError(PR_INVALID_ARGUMENT_ERROR, syserrno);
- status = PR_FAILURE;
- }
- }
- else
- #endif
- {
- PRUint32 *ip = (PRUint32*)&addr->inet.ip;
-
- *ip = inet_addr(string);
- if ((PRUint32) -1 == *ip)
- {
- /*
- * Either the af argument is not AF_INET, or the string argument
- * is a malformed address string.
- */
- PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
- status = PR_FAILURE;
- }
- }
-
- return status;
- }
-
- PR_IMPLEMENT(PRStatus) PR_NetAddrToString(
- const PRNetAddr *addr, char *string, PRUint32 size)
- {
- PR_ASSERT(size >= 16);
- if (size < 16) goto failed;
-
- #if defined(_PR_INET6)
- if (_pr_ipv6_enabled)
- {
- PR_ASSERT(AF_INET6 == addr->ipv6.family);
- if ((AF_INET6 != addr->ipv6.family)
- || (NULL == inet_ntop(AF_INET6, &addr->ipv6.ip, string, size)))
- goto failed;
- }
- else
- #endif /* defined(_PR_INET6) */
- {
- PR_ASSERT(AF_INET == addr->inet.family);
- if (AF_INET != addr->inet.family) goto failed;
- else
- {
- unsigned char *byte = (unsigned char*)&addr->inet.ip;
- PR_snprintf(string, size, "%u.%u.%u.%u",
- byte[0], byte[1], byte[2], byte[3]);
- }
- }
-
- return PR_SUCCESS;
-
- failed:
- PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
- return PR_FAILURE;
-
- } /* PR_NetAddrToString */
-
- PR_IMPLEMENT(PRUint16) PR_ntohs(PRUint16 n) { return ntohs(n); }
- PR_IMPLEMENT(PRUint32) PR_ntohl(PRUint32 n) { return ntohl(n); }
- PR_IMPLEMENT(PRUint16) PR_htons(PRUint16 n) { return htons(n); }
- PR_IMPLEMENT(PRUint32) PR_htonl(PRUint32 n) { return htonl(n); }
- PR_IMPLEMENT(PRUint64) PR_ntohll(PRUint64 n)
- {
- /*
- ** There is currently no attempt to optomize out depending
- ** on the host' byte order. That would be easy enough to
- ** do.
- */
- PRUint64 tmp;
- PRUint32 hi, lo;
- LL_L2UI(lo, n);
- LL_SHR(tmp, n, 32);
- LL_L2UI(hi, tmp);
- hi = PR_ntohl(hi);
- lo = PR_ntohl(lo);
- LL_UI2L(n, hi);
- LL_SHL(n, n, 32);
- LL_UI2L(tmp, lo);
- LL_ADD(n, n, tmp);
- return n;
- } /* ntohll */
-
- PR_IMPLEMENT(PRUint64) PR_htonll(PRUint64 n)
- {
- /*
- ** There is currently no attempt to optomize out depending
- ** on the host' byte order. That would be easy enough to
- ** do.
- */
- PRUint64 tmp;
- PRUint32 hi, lo;
- LL_L2UI(lo, n);
- LL_SHR(tmp, n, 32);
- LL_L2UI(hi, tmp);
- hi = htonl(hi);
- lo = htonl(lo);
- LL_UI2L(n, hi);
- LL_SHL(n, n, 32);
- LL_UI2L(tmp, lo);
- LL_ADD(n, n, tmp);
- return n;
- } /* htonll */
-
- PR_IMPLEMENT(PRUint16) PR_FamilyInet(void)
- {
- #ifdef _PR_INET6
- return (_pr_ipv6_enabled ? AF_INET6 : AF_INET);
- #else
- return AF_INET;
- #endif
- }
-