--- /dev/null
+/*
+ * 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
+ * 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.
+ */
+
+#include "defs.h"
+#include <poll.h>
+
+#include "xlat/pollflags.h"
+
+static int
+decode_poll(struct tcb *tcp, long pts)
+{
+ struct pollfd fds;
+ unsigned nfds;
+ unsigned long size, start, cur, end, abbrev_end;
+ int failed = 0;
+
+ if (entering(tcp)) {
+ nfds = tcp->u_arg[1];
+ size = sizeof(fds) * nfds;
+ start = tcp->u_arg[0];
+ end = start + size;
+ if (nfds == 0 || size / sizeof(fds) != nfds || end < start) {
+ tprintf("%#lx, %d, ",
+ tcp->u_arg[0], nfds);
+ return 0;
+ }
+ if (abbrev(tcp)) {
+ abbrev_end = start + max_strlen * sizeof(fds);
+ if (abbrev_end < start)
+ abbrev_end = end;
+ } else {
+ abbrev_end = end;
+ }
+ tprints("[");
+ for (cur = start; cur < end; cur += sizeof(fds)) {
+ if (cur > start)
+ tprints(", ");
+ if (cur >= abbrev_end) {
+ tprints("...");
+ break;
+ }
+ if (umoven(tcp, cur, sizeof fds, &fds) < 0) {
+ tprints("?");
+ failed = 1;
+ break;
+ }
+ if (fds.fd < 0) {
+ tprintf("{fd=%d}", fds.fd);
+ continue;
+ }
+ tprints("{fd=");
+ printfd(tcp, fds.fd);
+ tprints(", events=");
+ printflags(pollflags, fds.events, "POLL???");
+ tprints("}");
+ }
+ tprints("]");
+ if (failed)
+ tprintf(" %#lx", start);
+ tprintf(", %d, ", nfds);
+ return 0;
+ } else {
+ static char outstr[1024];
+ char *outptr;
+#define end_outstr (outstr + sizeof(outstr))
+ const char *flagstr;
+
+ if (syserror(tcp))
+ return 0;
+ if (tcp->u_rval == 0) {
+ tcp->auxstr = "Timeout";
+ return RVAL_STR;
+ }
+
+ nfds = tcp->u_arg[1];
+ size = sizeof(fds) * nfds;
+ start = tcp->u_arg[0];
+ end = start + size;
+ if (nfds == 0 || size / sizeof(fds) != nfds || end < start)
+ return 0;
+ if (abbrev(tcp)) {
+ abbrev_end = start + max_strlen * sizeof(fds);
+ if (abbrev_end < start)
+ abbrev_end = end;
+ } else {
+ abbrev_end = end;
+ }
+
+ outptr = outstr;
+
+ for (cur = start; cur < end; cur += sizeof(fds)) {
+ if (umoven(tcp, cur, sizeof fds, &fds) < 0) {
+ if (outptr < end_outstr - 2)
+ *outptr++ = '?';
+ failed = 1;
+ break;
+ }
+ if (!fds.revents)
+ continue;
+ if (outptr == outstr) {
+ *outptr++ = '[';
+ } else {
+ if (outptr < end_outstr - 3)
+ outptr = stpcpy(outptr, ", ");
+ }
+ if (cur >= abbrev_end) {
+ if (outptr < end_outstr - 4)
+ outptr = stpcpy(outptr, "...");
+ break;
+ }
+ if (outptr < end_outstr - (sizeof("{fd=%d, revents=") + sizeof(int)*3) + 1)
+ outptr += sprintf(outptr, "{fd=%d, revents=", fds.fd);
+ flagstr = sprintflags("", pollflags, fds.revents);
+ if (outptr < end_outstr - (strlen(flagstr) + 2)) {
+ outptr = stpcpy(outptr, flagstr);
+ *outptr++ = '}';
+ }
+ }
+ if (failed)
+ return 0;
+
+ if (outptr != outstr /* && outptr < end_outstr - 1 (always true)*/)
+ *outptr++ = ']';
+
+ *outptr = '\0';
+ if (pts) {
+ if (outptr < end_outstr - (10 + TIMESPEC_TEXT_BUFSIZE)) {
+ outptr = stpcpy(outptr, outptr == outstr ? "left " : ", left ");
+ sprint_timespec(outptr, tcp, pts);
+ }
+ }
+
+ if (outptr == outstr)
+ return 0;
+
+ tcp->auxstr = outstr;
+ return RVAL_STR;
+#undef end_outstr
+ }
+}
+
+SYS_FUNC(poll)
+{
+ int rc = decode_poll(tcp, 0);
+ if (entering(tcp)) {
+#ifdef INFTIM
+ if (tcp->u_arg[2] == INFTIM)
+ tprints("INFTIM");
+ else
+#endif
+ tprintf("%ld", tcp->u_arg[2]);
+ }
+ return rc;
+}
+
+SYS_FUNC(ppoll)
+{
+ int rc = decode_poll(tcp, tcp->u_arg[2]);
+ if (entering(tcp)) {
+ print_timespec(tcp, tcp->u_arg[2]);
+ tprints(", ");
+ /* NB: kernel requires arg[4] == NSIG / 8 */
+ print_sigset_addr_len(tcp, tcp->u_arg[3], tcp->u_arg[4]);
+ tprintf(", %lu", tcp->u_arg[4]);
+ }
+ return rc;
+}
*/
#include "defs.h"
-#include <poll.h>
-#ifdef HAVE_SYS_CONF_H
-# include <sys/conf.h>
-#endif
/* Who has STREAMS syscalls?
* Linux hasn't. Solaris has (had?).
}
# endif
#endif /* STREAMS syscalls support */
-
-
-#include "xlat/pollflags.h"
-
-static int
-decode_poll(struct tcb *tcp, long pts)
-{
- struct pollfd fds;
- unsigned nfds;
- unsigned long size, start, cur, end, abbrev_end;
- int failed = 0;
-
- if (entering(tcp)) {
- nfds = tcp->u_arg[1];
- size = sizeof(fds) * nfds;
- start = tcp->u_arg[0];
- end = start + size;
- if (nfds == 0 || size / sizeof(fds) != nfds || end < start) {
- tprintf("%#lx, %d, ",
- tcp->u_arg[0], nfds);
- return 0;
- }
- if (abbrev(tcp)) {
- abbrev_end = start + max_strlen * sizeof(fds);
- if (abbrev_end < start)
- abbrev_end = end;
- } else {
- abbrev_end = end;
- }
- tprints("[");
- for (cur = start; cur < end; cur += sizeof(fds)) {
- if (cur > start)
- tprints(", ");
- if (cur >= abbrev_end) {
- tprints("...");
- break;
- }
- if (umoven(tcp, cur, sizeof fds, &fds) < 0) {
- tprints("?");
- failed = 1;
- break;
- }
- if (fds.fd < 0) {
- tprintf("{fd=%d}", fds.fd);
- continue;
- }
- tprints("{fd=");
- printfd(tcp, fds.fd);
- tprints(", events=");
- printflags(pollflags, fds.events, "POLL???");
- tprints("}");
- }
- tprints("]");
- if (failed)
- tprintf(" %#lx", start);
- tprintf(", %d, ", nfds);
- return 0;
- } else {
- static char outstr[1024];
- char *outptr;
-#define end_outstr (outstr + sizeof(outstr))
- const char *flagstr;
-
- if (syserror(tcp))
- return 0;
- if (tcp->u_rval == 0) {
- tcp->auxstr = "Timeout";
- return RVAL_STR;
- }
-
- nfds = tcp->u_arg[1];
- size = sizeof(fds) * nfds;
- start = tcp->u_arg[0];
- end = start + size;
- if (nfds == 0 || size / sizeof(fds) != nfds || end < start)
- return 0;
- if (abbrev(tcp)) {
- abbrev_end = start + max_strlen * sizeof(fds);
- if (abbrev_end < start)
- abbrev_end = end;
- } else {
- abbrev_end = end;
- }
-
- outptr = outstr;
-
- for (cur = start; cur < end; cur += sizeof(fds)) {
- if (umoven(tcp, cur, sizeof fds, &fds) < 0) {
- if (outptr < end_outstr - 2)
- *outptr++ = '?';
- failed = 1;
- break;
- }
- if (!fds.revents)
- continue;
- if (outptr == outstr) {
- *outptr++ = '[';
- } else {
- if (outptr < end_outstr - 3)
- outptr = stpcpy(outptr, ", ");
- }
- if (cur >= abbrev_end) {
- if (outptr < end_outstr - 4)
- outptr = stpcpy(outptr, "...");
- break;
- }
- if (outptr < end_outstr - (sizeof("{fd=%d, revents=") + sizeof(int)*3) + 1)
- outptr += sprintf(outptr, "{fd=%d, revents=", fds.fd);
- flagstr = sprintflags("", pollflags, fds.revents);
- if (outptr < end_outstr - (strlen(flagstr) + 2)) {
- outptr = stpcpy(outptr, flagstr);
- *outptr++ = '}';
- }
- }
- if (failed)
- return 0;
-
- if (outptr != outstr /* && outptr < end_outstr - 1 (always true)*/)
- *outptr++ = ']';
-
- *outptr = '\0';
- if (pts) {
- if (outptr < end_outstr - (10 + TIMESPEC_TEXT_BUFSIZE)) {
- outptr = stpcpy(outptr, outptr == outstr ? "left " : ", left ");
- sprint_timespec(outptr, tcp, pts);
- }
- }
-
- if (outptr == outstr)
- return 0;
-
- tcp->auxstr = outstr;
- return RVAL_STR;
-#undef end_outstr
- }
-}
-
-SYS_FUNC(poll)
-{
- int rc = decode_poll(tcp, 0);
- if (entering(tcp)) {
-# ifdef INFTIM
- if (tcp->u_arg[2] == INFTIM)
- tprints("INFTIM");
- else
-# endif
- tprintf("%ld", tcp->u_arg[2]);
- }
- return rc;
-}
-
-SYS_FUNC(ppoll)
-{
- int rc = decode_poll(tcp, tcp->u_arg[2]);
- if (entering(tcp)) {
- print_timespec(tcp, tcp->u_arg[2]);
- tprints(", ");
- /* NB: kernel requires arg[4] == NSIG / 8 */
- print_sigset_addr_len(tcp, tcp->u_arg[3], tcp->u_arg[4]);
- tprintf(", %lu", tcp->u_arg[4]);
- }
- return rc;
-}
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