diff -r 000000000000 -r bde4ae8d615e os/ossrv/genericopenlibs/openenvcore/libc/src/readv.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/os/ossrv/genericopenlibs/openenvcore/libc/src/readv.c Fri Jun 15 03:10:57 2012 +0200 @@ -0,0 +1,119 @@ +/*- + * © Portions copyright (c) 2006 Nokia Corporation. All rights reserved. + * Copyright (c) 1995, 1996, 1997, 1998, 1999 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef __SYMBIAN32__ +#ifdef HAVE_CONFIG_H +#include +RCSID("$Id: readv.c,v 1.1.2.1.2.4 2006/11/23 11:59:59 sivanand Exp $"); +#endif + +#include "roken.h" + +#endif + +#include +#include +#include +#include +#include +#include +#include + +#define min(X , Y) ((X) < (Y) ? (X) :(Y) ) + + +EXPORT_C ssize_t +readv(int d, const struct iovec *iov, int iovcnt) +{ + ssize_t ret, nb; + size_t tot = 0; + int VecIter = 0 ; + char *buf, *p; + + if(iovcnt > IOV_MAX) + { + errno = EINVAL ; + return -1 ; + } + if(iovcnt < 0 ) + { + errno = EINVAL ; + return -1 ; + } + + for(VecIter = 0; VecIter < iovcnt ; ++VecIter) + { + if(iov[VecIter].iov_base == NULL) + { + if(VecIter != 0) + { + break ; //Break from the for loop + } + errno = EFAULT ; + return -1 ; + } + if((int)iov[VecIter].iov_len >= 0 ) + { + tot += iov[VecIter].iov_len; + } + + else + { + errno = EINVAL ; + return -1 ; + } + + } + + buf = malloc(tot); + + if (tot != 0 && buf == NULL) { + errno = ENOMEM; + return -1; + } + + nb = ret = read (d, buf, tot); + p = buf; + + while (nb > 0) { + ssize_t cnt = min(nb, iov->iov_len); + memcpy (iov->iov_base, p, cnt); + p += cnt; + nb -= cnt; + iov += 1 ; //Newly added + } + free(buf); + return ret; +} +