1 /* 2 * Copyright (c) 1993 Ulrich Pegelow <pegelow (at) moorea.uni-muenster.de> 3 * Copyright (c) 1993 Branko Lankester <branko (at) hacktic.nl> 4 * Copyright (c) 1993, 1994, 1995, 1996 Rick Sladkey <jrs (at) world.std.com> 5 * Copyright (c) 1996-1999 Wichert Akkerman <wichert (at) cistron.nl> 6 * Copyright (c) 2003-2006 Roland McGrath <roland (at) redhat.com> 7 * Copyright (c) 2006-2015 Dmitry V. Levin <ldv (at) altlinux.org> 8 * All rights reserved. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 #include "defs.h" 34 35 #ifdef HAVE_SYS_SHM_H 36 # include <sys/shm.h> 37 #elif defined HAVE_LINUX_SHM_H 38 # include <linux/shm.h> 39 #endif 40 41 #include "xlat/shm_resource_flags.h" 42 #include "xlat/shm_flags.h" 43 44 SYS_FUNC(shmget) 45 { 46 const int key = (int) tcp->u_arg[0]; 47 if (key) 48 tprintf("%#x", key); 49 else 50 tprints("IPC_PRIVATE"); 51 tprintf(", %" PRI_klu ", ", tcp->u_arg[1]); 52 if (printflags(shm_resource_flags, tcp->u_arg[2] & ~0777, NULL) != 0) 53 tprints("|"); 54 print_numeric_umode_t(tcp->u_arg[2] & 0777); 55 return RVAL_DECODED; 56 } 57 58 SYS_FUNC(shmat) 59 { 60 if (entering(tcp)) { 61 tprintf("%d, ", (int) tcp->u_arg[0]); 62 if (indirect_ipccall(tcp)) { 63 printaddr(tcp->u_arg[3]); 64 tprints(", "); 65 printflags(shm_flags, tcp->u_arg[1], "SHM_???"); 66 } else { 67 printaddr(tcp->u_arg[1]); 68 tprints(", "); 69 printflags(shm_flags, tcp->u_arg[2], "SHM_???"); 70 } 71 return 0; 72 } else { 73 if (syserror(tcp)) 74 return 0; 75 if (indirect_ipccall(tcp)) { 76 union { 77 uint64_t r64; 78 uint32_t r32; 79 } u; 80 if (umoven(tcp, tcp->u_arg[2], current_wordsize, &u) < 0) 81 return RVAL_NONE; 82 tcp->u_rval = (sizeof(u.r32) == current_wordsize) 83 ? u.r32 : u.r64; 84 } 85 return RVAL_HEX; 86 } 87 } 88 89 SYS_FUNC(shmdt) 90 { 91 printaddr(tcp->u_arg[indirect_ipccall(tcp) ? 3 : 0]); 92 return RVAL_DECODED; 93 } 94
