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* crypt/crypt.c: Changed copying permission notice to Lesser GPL from Library GPL. * crypt/crypt_util.c: Likewise. * crypt/ufc.c: Likewise. * elf/dl-conflict.c: Likewise. * elf/dl-iteratephdr.c: Likewise. * iconv/iconvconfig.h: Likewise. * linuxthreads/Examples/ex10.c: Likewise. * linuxthreads/Examples/ex11.c: Likewise. * linuxthreads/Examples/ex13.c: Likewise. * linuxthreads/Examples/ex8.c: Likewise. * linuxthreads/Examples/ex9.c: Likewise. * linuxthreads/barrier.c: Likewise. * linuxthreads/events.c: Likewise. * linuxthreads/lockfile.c: Likewise. * linuxthreads/no-tsd.c: Likewise. * linuxthreads/pt-machine.c: Likewise. * linuxthreads/ptclock_gettime.c: Likewise. * linuxthreads/ptclock_settime.c: Likewise. * linuxthreads/rwlock.c: Likewise. * linuxthreads/sysdeps/alpha/pspinlock.c: Likewise. * linuxthreads/sysdeps/alpha/pt-machine.h: Likewise. * linuxthreads/sysdeps/arm/pspinlock.c: Likewise. * linuxthreads/sysdeps/arm/pt-machine.h: Likewise. * linuxthreads/sysdeps/cris/pspinlock.c: Likewise. * linuxthreads/sysdeps/cris/pt-machine.h: Likewise. * linuxthreads/sysdeps/hppa/pspinlock.c: Likewise. * linuxthreads/sysdeps/hppa/pt-machine.h: Likewise. * linuxthreads/sysdeps/i386/i686/pt-machine.h: Likewise. * linuxthreads/sysdeps/i386/pspinlock.c: Likewise. * linuxthreads/sysdeps/i386/pt-machine.h: Likewise. * linuxthreads/sysdeps/i386/useldt.h: Likewise. * linuxthreads/sysdeps/ia64/pspinlock.c: Likewise. * linuxthreads/sysdeps/ia64/pt-machine.h: Likewise. * linuxthreads/sysdeps/m68k/pspinlock.c: Likewise. * linuxthreads/sysdeps/m68k/pt-machine.h: Likewise. * linuxthreads/sysdeps/mips/pspinlock.c: Likewise. * linuxthreads/sysdeps/mips/pt-machine.h: Likewise. * linuxthreads/sysdeps/powerpc/pspinlock.c: Likewise. * linuxthreads/sysdeps/powerpc/pt-machine.h: Likewise. * linuxthreads/sysdeps/pthread/bits/initspin.h: Likewise. * linuxthreads/sysdeps/pthread/bits/libc-lock.h: Likewise. * linuxthreads/sysdeps/pthread/bits/libc-tsd.h: Likewise. * linuxthreads/sysdeps/pthread/getcpuclockid.c: Likewise. * linuxthreads/sysdeps/pthread/posix-timer.h: Likewise. * linuxthreads/sysdeps/pthread/timer_create.c: Likewise. * linuxthreads/sysdeps/pthread/timer_delete.c: Likewise. * linuxthreads/sysdeps/pthread/timer_getoverr.c: Likewise. * linuxthreads/sysdeps/pthread/timer_gettime.c: Likewise. * linuxthreads/sysdeps/pthread/timer_routines.c: Likewise. * linuxthreads/sysdeps/pthread/timer_settime.c: Likewise. * linuxthreads/sysdeps/pthread/tst-timer.c: Likewise. * linuxthreads/sysdeps/s390/pspinlock.c: Likewise. * linuxthreads/sysdeps/s390/s390-32/pt-machine.h: Likewise. * linuxthreads/sysdeps/s390/s390-64/pt-machine.h: Likewise. * linuxthreads/sysdeps/sh/pspinlock.c: Likewise. * linuxthreads/sysdeps/sh/pt-machine.h: Likewise. * linuxthreads/sysdeps/sparc/sparc32/pspinlock.c: Likewise. * linuxthreads/sysdeps/sparc/sparc32/pt-machine.h: Likewise. * linuxthreads/sysdeps/sparc/sparc32/sparcv9/pspinlock.c: Likewise. * linuxthreads/sysdeps/sparc/sparc64/pspinlock.c: Likewise. * linuxthreads/sysdeps/sparc/sparc64/pt-machine.h: Likewise. * linuxthreads/sysdeps/unix/sysv/linux/bits/local_lim.h: Likewise. * linuxthreads/sysdeps/unix/sysv/linux/bits/posix_opt.h: Likewise. * linuxthreads/sysdeps/unix/sysv/linux/bits/sigthread.h: Likewise. * linuxthreads/sysdeps/unix/sysv/linux/hppa/bits/initspin.h: Likewise. * linuxthreads/sysdeps/unix/sysv/linux/i386/bits/posix_opt.h: Likewise. * linuxthreads/tststack.c: Likewise. * linuxthreads/unload.c: Likewise. * linuxthreads/weaks.c: Likewise. * linuxthreads/wrapsyscall.c: Likewise. * malloc/arena.c: Likewise. * malloc/hooks.c: Likewise. * malloc/malloc.c: Likewise. * posix/glob/Makefile.ami: Likewise. * posix/glob/Makefile.in: Likewise. * stdlib/gmp-impl.h: Likewise. * stdlib/gmp.h: Likewise. * sysdeps/generic/dl-iteratephdr-static.c: Likewise. * sysdeps/generic/strnlen.c: Likewise. * sysdeps/mach/hurd/powerpc/bits/sigcontext.h: Likewise. * sysdeps/mach/hurd/recvmsg.c: Likewise. * sysdeps/mach/hurd/sendmsg.c: Likewise. * sysdeps/mach/hurd/spawni.c: Likewise. * sysdeps/mach/powerpc/machine-sp.h: Likewise. * sysdeps/mach/powerpc/sysdep.h: Likewise. * sysdeps/mach/powerpc/thread_state.h: Likewise. * sysdeps/unix/bsd/bsd4.4/bits/socket.h: Likewise. * sysdeps/unix/sysv/linux/ia64/dl-iteratephdr-static.c: Likewise. * sysdeps/x86_64/gmp-mparam.h: Likewise.
146 lines
4.0 KiB
C
146 lines
4.0 KiB
C
/* Copyright (C) 2001, 2002 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public License as
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published by the Free Software Foundation; either version 2.1 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <errno.h>
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#include <string.h>
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#include <sys/socket.h>
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#include <hurd.h>
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#include <hurd/fd.h>
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#include <hurd/socket.h>
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/* Receive a message as described by MESSAGE from socket FD.
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Returns the number of bytes read or -1 for errors. */
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ssize_t
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__libc_recvmsg (int fd, struct msghdr *message, int flags)
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{
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error_t err;
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addr_port_t aport;
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char *data = NULL;
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mach_msg_type_number_t len = 0;
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mach_port_t *ports;
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mach_msg_type_number_t nports;
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char *cdata = NULL;
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mach_msg_type_number_t clen = 0;
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size_t amount;
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char *buf;
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int i;
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/* Find the total number of bytes to be read. */
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amount = 0;
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for (i = 0; i < message->msg_iovlen; i++)
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{
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amount += message->msg_iov[i].iov_len;
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/* As an optimization, we set the initial values of DATA and LEN
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from the first non-empty iovec. This kicks-in in the case
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where the whole packet fits into that iovec buffer. */
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if (data == NULL && message->msg_iov[i].iov_len > 0)
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{
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data = message->msg_iov[i].iov_base;
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len = message->msg_iov[i].iov_len;
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}
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}
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buf = data;
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if (err = HURD_DPORT_USE (fd, __socket_recv (port, &aport,
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flags, &data, &len,
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&ports, &nports,
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&cdata, &clen,
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&message->msg_flags, amount)))
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return __hurd_dfail (fd, err);
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if (message->msg_name != NULL)
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{
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char *buf = message->msg_name;
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mach_msg_type_number_t buflen = message->msg_namelen;
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int type;
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err = __socket_whatis_address (aport, &type, &buf, &buflen);
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if (err == EOPNOTSUPP)
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/* If the protocol server can't tell us the address, just return a
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zero-length one. */
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{
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buf = message->msg_name;
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buflen = 0;
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err = 0;
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}
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if (err)
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{
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__mach_port_deallocate (__mach_task_self (), aport);
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return __hurd_dfail (fd, err);
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}
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if (message->msg_namelen > buflen)
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message->msg_namelen = buflen;
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if (buf != message->msg_name)
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{
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memcpy (message->msg_name, buf, message->msg_namelen);
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__vm_deallocate (__mach_task_self (), (vm_address_t) buf, buflen);
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}
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if (buflen > 0)
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((struct sockaddr *) message->msg_name)->sa_family = type;
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}
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__mach_port_deallocate (__mach_task_self (), aport);
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if (buf == data)
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buf += len;
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else
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{
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/* Copy the data into MSG. */
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if (len > amount)
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message->msg_flags |= MSG_TRUNC;
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else
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amount = len;
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buf = data;
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for (i = 0; i < message->msg_iovlen; i++)
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{
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#define min(a, b) ((a) > (b) ? (b) : (a))
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size_t copy = min (message->msg_iov[i].iov_len, amount);
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memcpy (message->msg_iov[i].iov_base, buf, copy);
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buf += copy;
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amount -= copy;
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if (len == 0)
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break;
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}
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__vm_deallocate (__mach_task_self (), (vm_address_t) data, len);
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}
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/* Copy the control message into MSG. */
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if (clen > message->msg_controllen)
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message->msg_flags |= MSG_CTRUNC;
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else
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message->msg_controllen = clen;
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memcpy (message->msg_control, cdata, message->msg_controllen);
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__vm_deallocate (__mach_task_self (), (vm_address_t) cdata, clen);
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return (buf - data);
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}
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weak_alias (__libc_recvmsg, recvmsg)
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weak_alias (__libc_recvmsg, __recvmsg)
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