| xmmap.c (124208) | xmmap.c (137015) |
|---|---|
| 1/* 2 * Copyright (c) 2002 Tim Rice. All rights reserved. 3 * MAP_FAILED code by Solar Designer. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 9 unchanged lines hidden (view full) --- 18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 | 1/* 2 * Copyright (c) 2002 Tim Rice. All rights reserved. 3 * MAP_FAILED code by Solar Designer. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 9 unchanged lines hidden (view full) --- 18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 |
| 26/* $Id: xmmap.c,v 1.3 2003/06/02 02:25:27 tim Exp $ */ | 26/* $Id: xmmap.c,v 1.5 2004/08/14 13:55:38 dtucker Exp $ */ |
| 27 28#include "includes.h" 29 30#ifdef HAVE_SYS_MMAN_H 31#include <sys/mman.h> 32#endif 33 34#include "log.h" 35 36void *xmmap(size_t size) 37{ 38 void *address; 39 40#ifdef HAVE_MMAP 41# ifdef MAP_ANON 42 address = mmap(NULL, size, PROT_WRITE|PROT_READ, MAP_ANON|MAP_SHARED, | 27 28#include "includes.h" 29 30#ifdef HAVE_SYS_MMAN_H 31#include <sys/mman.h> 32#endif 33 34#include "log.h" 35 36void *xmmap(size_t size) 37{ 38 void *address; 39 40#ifdef HAVE_MMAP 41# ifdef MAP_ANON 42 address = mmap(NULL, size, PROT_WRITE|PROT_READ, MAP_ANON|MAP_SHARED, |
| 43 -1, 0); | 43 -1, (off_t)0); |
| 44# else 45 address = mmap(NULL, size, PROT_WRITE|PROT_READ, MAP_SHARED, | 44# else 45 address = mmap(NULL, size, PROT_WRITE|PROT_READ, MAP_SHARED, |
| 46 open("/dev/zero", O_RDWR), 0); | 46 open("/dev/zero", O_RDWR), (off_t)0); |
| 47# endif 48 49#define MM_SWAP_TEMPLATE "/var/run/sshd.mm.XXXXXXXX" 50 if (address == MAP_FAILED) { 51 char tmpname[sizeof(MM_SWAP_TEMPLATE)] = MM_SWAP_TEMPLATE; 52 int tmpfd; | 47# endif 48 49#define MM_SWAP_TEMPLATE "/var/run/sshd.mm.XXXXXXXX" 50 if (address == MAP_FAILED) { 51 char tmpname[sizeof(MM_SWAP_TEMPLATE)] = MM_SWAP_TEMPLATE; 52 int tmpfd; |
| 53 mode_t old_umask; |
|
| 53 | 54 |
| 55 old_umask = umask(0177); |
|
| 54 tmpfd = mkstemp(tmpname); | 56 tmpfd = mkstemp(tmpname); |
| 57 umask(old_umask); |
|
| 55 if (tmpfd == -1) 56 fatal("mkstemp(\"%s\"): %s", 57 MM_SWAP_TEMPLATE, strerror(errno)); 58 unlink(tmpname); 59 ftruncate(tmpfd, size); 60 address = mmap(NULL, size, PROT_WRITE|PROT_READ, MAP_SHARED, | 58 if (tmpfd == -1) 59 fatal("mkstemp(\"%s\"): %s", 60 MM_SWAP_TEMPLATE, strerror(errno)); 61 unlink(tmpname); 62 ftruncate(tmpfd, size); 63 address = mmap(NULL, size, PROT_WRITE|PROT_READ, MAP_SHARED, |
| 61 tmpfd, 0); | 64 tmpfd, (off_t)0); |
| 62 close(tmpfd); 63 } 64 65 return (address); 66#else 67 fatal("%s: UsePrivilegeSeparation=yes and Compression=yes not supported", 68 __func__); 69#endif /* HAVE_MMAP */ 70 71} 72 | 65 close(tmpfd); 66 } 67 68 return (address); 69#else 70 fatal("%s: UsePrivilegeSeparation=yes and Compression=yes not supported", 71 __func__); 72#endif /* HAVE_MMAP */ 73 74} 75 |