* 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>
+ * Copyright (c) 1996-1999 Wichert Akkerman <wichert@cistron.nl>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* 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;
+SYS_FUNC(read)
{
if (entering(tcp)) {
- tprintf("%ld, ", tcp->u_arg[0]);
+ printfd(tcp, tcp->u_arg[0]);
+ tprints(", ");
} else {
if (syserror(tcp))
- tprintf("%#lx", tcp->u_arg[1]);
+ printaddr(tcp->u_arg[1]);
else
- printstr(tcp, tcp->u_arg[1], tcp->u_rval);
- tprintf(", %lu", tcp->u_arg[2]);
+ printstrn(tcp, tcp->u_arg[1], tcp->u_rval);
+ tprintf(", %" PRI_kru, tcp->u_arg[2]);
}
return 0;
}
-int
-sys_write(tcp)
-struct tcb *tcp;
+SYS_FUNC(write)
{
- 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;
+ printfd(tcp, tcp->u_arg[0]);
+ tprints(", ");
+ printstrn(tcp, tcp->u_arg[1], tcp->u_arg[2]);
+ tprintf(", %" PRI_kru, tcp->u_arg[2]);
+
+ return RVAL_DECODED;
}
-int
-sys_readv(tcp)
-struct tcb *tcp;
+struct print_iovec_config {
+ enum iov_decode decode_iov;
+ kernel_ureg_t data_size;
+};
+
+static bool
+print_iovec(struct tcb *tcp, void *elem_buf, size_t elem_size, void *data)
{
- struct iovec *iov;
- int i, len;
+ const kernel_ureg_t *iov;
+ kernel_ureg_t iov_buf[2], len;
+ struct print_iovec_config *c = data;
- if (entering(tcp)) {
- tprintf("%ld, ", tcp->u_arg[0]);
+ if (elem_size < sizeof(iov_buf)) {
+ iov_buf[0] = ((unsigned int *) elem_buf)[0];
+ iov_buf[1] = ((unsigned int *) elem_buf)[1];
+ iov = iov_buf;
} 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(", %u}", iov[i].iov_len);
- }
- tprintf("]");
- }
- free((char *) iov);
- tprintf(", %lu", tcp->u_arg[2]);
+ iov = elem_buf;
}
- return 0;
+
+ tprints("{iov_base=");
+
+ len = iov[1];
+
+ switch (c->decode_iov) {
+ case IOV_DECODE_STR:
+ if (len > c->data_size)
+ len = c->data_size;
+ if (c->data_size != (kernel_ureg_t) -1)
+ c->data_size -= len;
+ printstrn(tcp, iov[0], len);
+ break;
+ case IOV_DECODE_NETLINK:
+ if (len > c->data_size)
+ len = c->data_size;
+ if (c->data_size != (kernel_ureg_t) -1)
+ c->data_size -= len;
+ decode_netlink(tcp, iov[0], iov[1]);
+ break;
+ default:
+ printaddr(iov[0]);
+ break;
+ }
+
+ tprintf(", iov_len=%" PRI_kru "}", iov[1]);
+
+ return true;
}
-int
-sys_writev(tcp)
-struct tcb *tcp;
+/*
+ * data_size limits the cumulative size of printed data.
+ * Example: recvmsg returing a short read.
+ */
+void
+tprint_iov_upto(struct tcb *const tcp, const kernel_ureg_t len,
+ const kernel_ureg_t addr, const enum iov_decode decode_iov,
+ const kernel_ureg_t data_size)
{
- struct iovec *iov;
- int i, len;
+ kernel_ureg_t iov[2];
+ struct print_iovec_config config =
+ { .decode_iov = decode_iov, .data_size = data_size };
+ print_array(tcp, addr, len, iov, current_wordsize * 2,
+ umoven_or_printaddr_ignore_syserror, print_iovec, &config);
+}
+
+SYS_FUNC(readv)
+{
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(", %u}", iov[i].iov_len);
- }
- tprintf("]");
- }
- free((char *) iov);
- tprintf(", %lu", tcp->u_arg[2]);
+ printfd(tcp, tcp->u_arg[0]);
+ tprints(", ");
+ } else {
+ tprint_iov_upto(tcp, tcp->u_arg[2], tcp->u_arg[1],
+ syserror(tcp) ? IOV_DECODE_ADDR :
+ IOV_DECODE_STR, tcp->u_rval);
+ tprintf(", %" PRI_kru, tcp->u_arg[2]);
}
return 0;
}
-#ifdef SVR4
+SYS_FUNC(writev)
+{
+ printfd(tcp, tcp->u_arg[0]);
+ tprints(", ");
+ tprint_iov(tcp, tcp->u_arg[2], tcp->u_arg[1], IOV_DECODE_STR);
+ tprintf(", %" PRI_kru, tcp->u_arg[2]);
-int
-sys_pread(tcp)
-struct tcb *tcp;
+ return RVAL_DECODED;
+}
+
+SYS_FUNC(pread)
{
if (entering(tcp)) {
- tprintf("%ld, ", tcp->u_arg[0]);
+ printfd(tcp, tcp->u_arg[0]);
+ tprints(", ");
} else {
if (syserror(tcp))
- tprintf("%#lx", tcp->u_arg[1]);
+ printaddr(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]));
+ printstrn(tcp, tcp->u_arg[1], tcp->u_rval);
+ tprintf(", %" PRI_kru ", ", tcp->u_arg[2]);
+ printllval(tcp, "%lld", 3);
}
return 0;
}
-int
-sys_pwrite(tcp)
-struct tcb *tcp;
+SYS_FUNC(pwrite)
{
- 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]));
+ printfd(tcp, tcp->u_arg[0]);
+ tprints(", ");
+ printstrn(tcp, tcp->u_arg[1], tcp->u_arg[2]);
+ tprintf(", %" PRI_kru ", ", tcp->u_arg[2]);
+ printllval(tcp, "%lld", 3);
+
+ return RVAL_DECODED;
+}
+
+static void
+print_lld_from_low_high_val(struct tcb *tcp, int arg)
+{
+#if SIZEOF_LONG > 4 && SIZEOF_LONG == SIZEOF_LONG_LONG
+# ifndef current_klongsize
+ if (current_klongsize < SIZEOF_LONG) {
+ tprintf("%" PRI_krd, (tcp->u_arg[arg + 1] << current_wordsize * 8)
+ | tcp->u_arg[arg]);
+ } else
+# endif /* !current_klongsize */
+ {
+ tprintf("%" PRI_krd, tcp->u_arg[arg]);
}
- return 0;
+#elif SIZEOF_LONG > 4
+# error Unsupported configuration: SIZEOF_LONG > 4 && SIZEOF_LONG_LONG > SIZEOF_LONG
+#elif HAVE_STRUCT_TCB_EXT_ARG
+# ifndef current_klongsize
+ if (current_klongsize < SIZEOF_LONG_LONG) {
+ tprintf("%lld",
+ (zero_extend_signed_to_ull(tcp->u_arg[arg + 1]) << sizeof(long) * 8)
+ | zero_extend_signed_to_ull(tcp->u_arg[arg]));
+ } else
+# endif /* !current_klongsize */
+ {
+ tprintf("%lld", tcp->ext_arg[arg]);
+ }
+#else /* SIZEOF_LONG_LONG > SIZEOF_LONG && !HAVE_STRUCT_TCB_EXT_ARG */
+ tprintf("%lld",
+ (zero_extend_signed_to_ull(tcp->u_arg[arg + 1]) << sizeof(long) * 8)
+ | zero_extend_signed_to_ull(tcp->u_arg[arg]));
+#endif
}
-#endif /* SVR4 */
-#ifdef LINUX
-int
-sys_pread(tcp)
-struct tcb *tcp;
+#include "xlat/rwf_flags.h"
+
+static int
+do_preadv(struct tcb *tcp, const int flags_arg)
{
if (entering(tcp)) {
- tprintf("%ld, ", tcp->u_arg[0]);
+ printfd(tcp, tcp->u_arg[0]);
+ tprints(", ");
} else {
- if (syserror(tcp))
- tprintf("%#lx", tcp->u_arg[1]);
- else
- printstr(tcp, tcp->u_arg[1], tcp->u_rval);
- tprintf(", %lu, %lu", tcp->u_arg[2], tcp->u_arg[3]);
+ unsigned long len = widen_to_ulong(tcp->u_arg[2]);
+
+ tprint_iov_upto(tcp, len, tcp->u_arg[1],
+ syserror(tcp) ? IOV_DECODE_ADDR :
+ IOV_DECODE_STR, tcp->u_rval);
+ tprintf(", %lu, ", len);
+ print_lld_from_low_high_val(tcp, 3);
+ if (flags_arg >= 0) {
+ tprints(", ");
+ printflags(rwf_flags, tcp->u_arg[flags_arg], "RWF_???");
+ }
}
return 0;
}
-int
-sys_pwrite(tcp)
-struct tcb *tcp;
+SYS_FUNC(preadv)
{
- if (entering(tcp)) {
- tprintf("%ld, ", tcp->u_arg[0]);
- printstr(tcp, tcp->u_arg[1], tcp->u_arg[2]);
- tprintf(", %lu, %lu", tcp->u_arg[2], tcp->u_arg[3]);
- }
- return 0;
+ return do_preadv(tcp, -1);
}
-#endif /* LINUX */
+SYS_FUNC(preadv2)
+{
+ return do_preadv(tcp, 5);
+}
-int
-sys_ioctl(tcp)
-struct tcb *tcp;
+static int
+do_pwritev(struct tcb *tcp, const int flags_arg)
{
- char *symbol;
+ unsigned long len = widen_to_ulong(tcp->u_arg[2]);
- 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]);
+ printfd(tcp, tcp->u_arg[0]);
+ tprints(", ");
+ tprint_iov(tcp, len, tcp->u_arg[1], IOV_DECODE_STR);
+ tprintf(", %lu, ", len);
+ print_lld_from_low_high_val(tcp, 3);
+ if (flags_arg >= 0) {
+ tprints(", ");
+ printflags(rwf_flags, tcp->u_arg[flags_arg], "RWF_???");
}
- return 0;
+
+ return RVAL_DECODED;
+}
+
+SYS_FUNC(pwritev)
+{
+ return do_pwritev(tcp, -1);
+}
+
+SYS_FUNC(pwritev2)
+{
+ return do_pwritev(tcp, 5);
+}
+
+#include "xlat/splice_flags.h"
+
+SYS_FUNC(tee)
+{
+ /* int fd_in */
+ printfd(tcp, tcp->u_arg[0]);
+ tprints(", ");
+ /* int fd_out */
+ printfd(tcp, tcp->u_arg[1]);
+ tprints(", ");
+ /* size_t len */
+ tprintf("%" PRI_kru ", ", tcp->u_arg[2]);
+ /* unsigned int flags */
+ printflags(splice_flags, tcp->u_arg[3], "SPLICE_F_???");
+
+ return RVAL_DECODED;
+}
+
+SYS_FUNC(splice)
+{
+ /* int fd_in */
+ printfd(tcp, tcp->u_arg[0]);
+ tprints(", ");
+ /* loff_t *off_in */
+ printnum_int64(tcp, tcp->u_arg[1], "%" PRId64);
+ tprints(", ");
+ /* int fd_out */
+ printfd(tcp, tcp->u_arg[2]);
+ tprints(", ");
+ /* loff_t *off_out */
+ printnum_int64(tcp, tcp->u_arg[3], "%" PRId64);
+ tprints(", ");
+ /* size_t len */
+ tprintf("%" PRI_kru ", ", tcp->u_arg[4]);
+ /* unsigned int flags */
+ printflags(splice_flags, tcp->u_arg[5], "SPLICE_F_???");
+
+ return RVAL_DECODED;
+}
+
+SYS_FUNC(vmsplice)
+{
+ /* int fd */
+ printfd(tcp, tcp->u_arg[0]);
+ tprints(", ");
+ /* const struct iovec *iov, unsigned long nr_segs */
+ tprint_iov(tcp, tcp->u_arg[2], tcp->u_arg[1], IOV_DECODE_STR);
+ tprintf(", %" PRI_kru ", ", tcp->u_arg[2]);
+ /* unsigned int flags */
+ printflags(splice_flags, tcp->u_arg[3], "SPLICE_F_???");
+
+ return RVAL_DECODED;
}