strace/io.c
1999-05-09 00:29:58 +00:00

250 lines
5.6 KiB
C

/*
* Copyright (c) 1991, 1992 Paul Kranenburg <pk@cs.few.eur.nl>
* Copyright (c) 1993 Branko Lankester <branko@hacktic.nl>
* Copyright (c) 1993, 1994, 1995, 1996 Rick Sladkey <jrs@world.std.com>
* 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. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*
* $Id$
*/
#include "defs.h"
#include <fcntl.h>
#include <sys/uio.h>
int
sys_read(tcp)
struct tcb *tcp;
{
if (entering(tcp)) {
tprintf("%ld, ", tcp->u_arg[0]);
} else {
if (syserror(tcp))
tprintf("%#lx", tcp->u_arg[1]);
else
printstr(tcp, tcp->u_arg[1], tcp->u_rval);
tprintf(", %lu", tcp->u_arg[2]);
}
return 0;
}
int
sys_write(tcp)
struct tcb *tcp;
{
if (entering(tcp)) {
tprintf("%ld, ", tcp->u_arg[0]);
printstr(tcp, tcp->u_arg[1], tcp->u_arg[2]);
tprintf(", %lu", tcp->u_arg[2]);
}
return 0;
}
int
sys_readv(tcp)
struct tcb *tcp;
{
struct iovec *iov;
int i, len;
if (entering(tcp)) {
tprintf("%ld, ", tcp->u_arg[0]);
} else {
if (syserror(tcp)) {
tprintf("%#lx, %lu",
tcp->u_arg[1], tcp->u_arg[2]);
return 0;
}
len = tcp->u_arg[2];
if ((iov = (struct iovec *) malloc(len * sizeof *iov)) == NULL) {
fprintf(stderr, "No memory");
return 0;
}
if (umoven(tcp, tcp->u_arg[1],
len * sizeof *iov, (char *) iov) < 0) {
tprintf("%#lx", tcp->u_arg[1]);
} else {
tprintf("[");
for (i = 0; i < len; i++) {
if (i)
tprintf(", ");
tprintf("{");
printstr(tcp, (long) iov[i].iov_base,
iov[i].iov_len);
tprintf(", %lu}", (unsigned long)iov[i].iov_len);
}
tprintf("]");
}
free((char *) iov);
tprintf(", %lu", tcp->u_arg[2]);
}
return 0;
}
int
sys_writev(tcp)
struct tcb *tcp;
{
struct iovec *iov;
int i, len;
if (entering(tcp)) {
tprintf("%ld, ", tcp->u_arg[0]);
len = tcp->u_arg[2];
iov = (struct iovec *) malloc(len * sizeof *iov);
if (iov == NULL) {
fprintf(stderr, "No memory");
return 0;
}
if (umoven(tcp, tcp->u_arg[1],
len * sizeof *iov, (char *) iov) < 0) {
tprintf("%#lx", tcp->u_arg[1]);
} else {
tprintf("[");
for (i = 0; i < len; i++) {
if (i)
tprintf(", ");
tprintf("{");
printstr(tcp, (long) iov[i].iov_base,
iov[i].iov_len);
tprintf(", %lu}", (unsigned long)iov[i].iov_len);
}
tprintf("]");
}
free((char *) iov);
tprintf(", %lu", tcp->u_arg[2]);
}
return 0;
}
#ifdef SVR4
int
sys_pread(tcp)
struct tcb *tcp;
{
if (entering(tcp)) {
tprintf("%ld, ", tcp->u_arg[0]);
} else {
if (syserror(tcp))
tprintf("%#lx", tcp->u_arg[1]);
else
printstr(tcp, tcp->u_arg[1], tcp->u_rval);
tprintf(", %lu, %llu", tcp->u_arg[2],
(((unsigned long long) tcp->u_arg[4]) << 32
| tcp->u_arg[3]));
}
return 0;
}
int
sys_pwrite(tcp)
struct tcb *tcp;
{
if (entering(tcp)) {
tprintf("%ld, ", tcp->u_arg[0]);
printstr(tcp, tcp->u_arg[1], tcp->u_arg[2]);
tprintf(", %lu, %llu", tcp->u_arg[2],
(((unsigned long long) tcp->u_arg[4]) << 32
| tcp->u_arg[3]));
}
return 0;
}
#endif /* SVR4 */
#ifdef LINUX
int
sys_pread(tcp)
struct tcb *tcp;
{
if (entering(tcp)) {
tprintf("%ld, ", tcp->u_arg[0]);
} else {
if (syserror(tcp))
tprintf("%#lx", tcp->u_arg[1]);
else
printstr(tcp, tcp->u_arg[1], tcp->u_rval);
tprintf(", %lu, %llu", tcp->u_arg[2],
*(unsigned long long *)&tcp->u_arg[3]);
}
return 0;
}
int
sys_pwrite(tcp)
struct tcb *tcp;
{
if (entering(tcp)) {
tprintf("%ld, ", tcp->u_arg[0]);
printstr(tcp, tcp->u_arg[1], tcp->u_arg[2]);
tprintf(", %lu, %llu", tcp->u_arg[2],
*(unsigned long long *)&tcp->u_arg[3]);
}
return 0;
}
int
sys_sendfile(tcp)
struct tcb *tcp;
{
if (entering(tcp)) {
off_t offset;
tprintf("%ld, %ld, ", tcp->u_arg[0], tcp->u_arg[1]);
if (!tcp->u_arg[2])
tprintf("NULL");
else if (umove(tcp, tcp->u_arg[2], &offset) < 0)
tprintf("%#lx", tcp->u_arg[2]);
else
tprintf("[%lu]", offset);
tprintf(", %lu", tcp->u_arg[3]);
}
return 0;
}
#endif /* LINUX */
int
sys_ioctl(tcp)
struct tcb *tcp;
{
char *symbol;
if (entering(tcp)) {
tprintf("%ld, ", tcp->u_arg[0]);
symbol = ioctl_lookup(tcp->u_arg[1]);
if (symbol)
tprintf("%s", symbol);
else
tprintf("%#lx", tcp->u_arg[1]);
ioctl_decode(tcp, tcp->u_arg[1], tcp->u_arg[2]);
}
else {
if (ioctl_decode(tcp, tcp->u_arg[1], tcp->u_arg[2]) == 0)
tprintf(", %#lx", tcp->u_arg[2]);
}
return 0;
}