| /* |
| * 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" |
| #if defined HAVE_POLL_H |
| # include <poll.h> |
| #elif defined HAVE_SYS_POLL_H |
| # include <sys/poll.h> |
| #endif |
| #ifdef HAVE_SYS_CONF_H |
| # include <sys/conf.h> |
| #endif |
| |
| /* Who has STREAMS syscalls? |
| * Linux hasn't. Solaris has (had?). |
| * Just in case I miss something, retain in for Sparc... |
| */ |
| #if defined(SPARC) || defined(SPARC64) |
| |
| # ifdef HAVE_STROPTS_H |
| # include <stropts.h> |
| # else |
| # define RS_HIPRI 1 |
| struct strbuf { |
| int maxlen; /* no. of bytes in buffer */ |
| int len; /* no. of bytes returned */ |
| const char *buf; /* pointer to data */ |
| }; |
| # define MORECTL 1 |
| # define MOREDATA 2 |
| # endif |
| |
| #include "xlat/msgflags.h" |
| |
| static void |
| printstrbuf(struct tcb *tcp, struct strbuf *sbp, int getting) |
| { |
| if (sbp->maxlen == -1 && getting) |
| tprints("{maxlen=-1}"); |
| else { |
| tprints("{"); |
| if (getting) |
| tprintf("maxlen=%d, ", sbp->maxlen); |
| tprintf("len=%d, buf=", sbp->len); |
| printstr(tcp, (unsigned long) sbp->buf, sbp->len); |
| tprints("}"); |
| } |
| } |
| |
| static void |
| printstrbufarg(struct tcb *tcp, long arg, int getting) |
| { |
| struct strbuf buf; |
| |
| if (arg == 0) |
| tprints("NULL"); |
| else if (umove(tcp, arg, &buf) < 0) |
| tprints("{...}"); |
| else |
| printstrbuf(tcp, &buf, getting); |
| tprints(", "); |
| } |
| |
| SYS_FUNC(putmsg) |
| { |
| int i; |
| |
| if (entering(tcp)) { |
| /* fd */ |
| tprintf("%ld, ", tcp->u_arg[0]); |
| /* control and data */ |
| for (i = 1; i < 3; i++) |
| printstrbufarg(tcp, tcp->u_arg[i], 0); |
| /* flags */ |
| printflags(msgflags, tcp->u_arg[3], "RS_???"); |
| } |
| return 0; |
| } |
| |
| SYS_FUNC(getmsg) |
| { |
| int i, flags; |
| |
| if (entering(tcp)) { |
| /* fd */ |
| tprintf("%lu, ", tcp->u_arg[0]); |
| } else { |
| if (syserror(tcp)) { |
| tprintf("%#lx, %#lx, %#lx", |
| tcp->u_arg[1], tcp->u_arg[2], tcp->u_arg[3]); |
| return 0; |
| } |
| /* control and data */ |
| for (i = 1; i < 3; i++) |
| printstrbufarg(tcp, tcp->u_arg[i], 1); |
| /* pointer to flags */ |
| if (tcp->u_arg[3] == 0) |
| tprints("NULL"); |
| else if (umove(tcp, tcp->u_arg[3], &flags) < 0) |
| tprints("[?]"); |
| else { |
| tprints("["); |
| printflags(msgflags, flags, "RS_???"); |
| tprints("]"); |
| } |
| /* decode return value */ |
| switch (tcp->u_rval) { |
| case MORECTL: |
| tcp->auxstr = "MORECTL"; |
| break; |
| case MORECTL|MOREDATA: |
| tcp->auxstr = "MORECTL|MOREDATA"; |
| break; |
| case MOREDATA: |
| tcp->auxstr = "MORECTL"; |
| break; |
| default: |
| tcp->auxstr = NULL; |
| break; |
| } |
| } |
| return RVAL_HEX | RVAL_STR; |
| } |
| |
| # if defined SYS_putpmsg || defined SYS_getpmsg |
| #include "xlat/pmsgflags.h" |
| # ifdef SYS_putpmsg |
| SYS_FUNC(putpmsg) |
| { |
| int i; |
| |
| if (entering(tcp)) { |
| /* fd */ |
| tprintf("%ld, ", tcp->u_arg[0]); |
| /* control and data */ |
| for (i = 1; i < 3; i++) |
| printstrbufarg(tcp, tcp->u_arg[i], 0); |
| /* band */ |
| tprintf("%ld, ", tcp->u_arg[3]); |
| /* flags */ |
| printflags(pmsgflags, tcp->u_arg[4], "MSG_???"); |
| } |
| return 0; |
| } |
| # endif |
| # ifdef SYS_getpmsg |
| SYS_FUNC(getpmsg) |
| { |
| int i, flags; |
| |
| if (entering(tcp)) { |
| /* fd */ |
| tprintf("%lu, ", tcp->u_arg[0]); |
| } else { |
| if (syserror(tcp)) { |
| tprintf("%#lx, %#lx, %#lx, %#lx", tcp->u_arg[1], |
| tcp->u_arg[2], tcp->u_arg[3], tcp->u_arg[4]); |
| return 0; |
| } |
| /* control and data */ |
| for (i = 1; i < 3; i++) |
| printstrbufarg(tcp, tcp->u_arg[i], 1); |
| /* pointer to band */ |
| printnum_int(tcp, tcp->u_arg[3], "%d"); |
| tprints(", "); |
| /* pointer to flags */ |
| if (tcp->u_arg[4] == 0) |
| tprints("NULL"); |
| else if (umove(tcp, tcp->u_arg[4], &flags) < 0) |
| tprints("[?]"); |
| else { |
| tprints("["); |
| printflags(pmsgflags, flags, "MSG_???"); |
| tprints("]"); |
| } |
| /* decode return value */ |
| switch (tcp->u_rval) { |
| case MORECTL: |
| tcp->auxstr = "MORECTL"; |
| break; |
| case MORECTL|MOREDATA: |
| tcp->auxstr = "MORECTL|MOREDATA"; |
| break; |
| case MOREDATA: |
| tcp->auxstr = "MORECTL"; |
| break; |
| default: |
| tcp->auxstr = NULL; |
| break; |
| } |
| } |
| return RVAL_HEX | RVAL_STR; |
| } |
| # endif |
| # endif /* getpmsg/putpmsg */ |
| |
| #endif /* STREAMS syscalls support */ |
| |
| |
| #ifdef HAVE_SYS_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; |
| } |
| |
| #else /* !HAVE_SYS_POLL_H */ |
| SYS_FUNC(poll) |
| { |
| return 0; |
| } |
| #endif |