| xinstall.c (21673) | xinstall.c (21786) |
|---|---|
| 1/* 2 * Copyright (c) 1987, 1993 3 * The Regents of the University of California. All rights reserved. 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 --- 26 unchanged lines hidden (view full) --- 35static const char copyright[] = 36"@(#) Copyright (c) 1987, 1993\n\ 37 The Regents of the University of California. All rights reserved.\n"; 38#endif /* not lint */ 39 40#ifndef lint 41/*static char sccsid[] = "From: @(#)xinstall.c 8.1 (Berkeley) 7/21/93";*/ 42static const char rcsid[] = | 1/* 2 * Copyright (c) 1987, 1993 3 * The Regents of the University of California. All rights reserved. 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 --- 26 unchanged lines hidden (view full) --- 35static const char copyright[] = 36"@(#) Copyright (c) 1987, 1993\n\ 37 The Regents of the University of California. All rights reserved.\n"; 38#endif /* not lint */ 39 40#ifndef lint 41/*static char sccsid[] = "From: @(#)xinstall.c 8.1 (Berkeley) 7/21/93";*/ 42static const char rcsid[] = |
| 43 "$FreeBSD: head/usr.bin/xinstall/xinstall.c 21673 1997-01-14 07:20:47Z jkh $"; | 43 "$FreeBSD: head/usr.bin/xinstall/xinstall.c 21786 1997-01-16 21:58:40Z alex $"; |
| 44#endif /* not lint */ 45 46/*- 47 * Todo: 48 * o for -C, compare original files except in -s case. 49 * o for -C, don't change anything if nothing needs be changed. In 50 * particular, don't toggle the immutable flags just to allow null 51 * attribute changes and don't clear the dump flag. (I think inode --- 456 unchanged lines hidden (view full) --- 508 if (from_sb->st_size != to_sb->st_size) 509 return 1; 510 511 tsize = (size_t)from_sb->st_size; 512 513 if (tsize <= 8 * 1024 * 1024) { 514 done_compare = 0; 515 if (trymmap(from_fd) && trymmap(to_fd)) { | 44#endif /* not lint */ 45 46/*- 47 * Todo: 48 * o for -C, compare original files except in -s case. 49 * o for -C, don't change anything if nothing needs be changed. In 50 * particular, don't toggle the immutable flags just to allow null 51 * attribute changes and don't clear the dump flag. (I think inode --- 456 unchanged lines hidden (view full) --- 508 if (from_sb->st_size != to_sb->st_size) 509 return 1; 510 511 tsize = (size_t)from_sb->st_size; 512 513 if (tsize <= 8 * 1024 * 1024) { 514 done_compare = 0; 515 if (trymmap(from_fd) && trymmap(to_fd)) { |
| 516 p = mmap(NULL, tsize, PROT_READ, 0, from_fd, (off_t)0); 517 if ((long)p == -1) | 516 p = mmap(NULL, tsize, PROT_READ, MAP_SHARED, from_fd, (off_t)0); 517 if (p == (char *)MAP_FAILED) |
| 518 goto out; | 518 goto out; |
| 519 q = mmap(NULL, tsize, PROT_READ, 0, to_fd, (off_t)0); 520 if ((long)q == -1) { | 519 q = mmap(NULL, tsize, PROT_READ, MAP_SHARED, to_fd, (off_t)0); 520 if (q == (char *)MAP_FAILED) { |
| 521 munmap(p, tsize); 522 goto out; 523 } 524 525 rv = memcmp(p, q, tsize); 526 munmap(p, tsize); 527 munmap(q, tsize); 528 done_compare = 1; --- 47 unchanged lines hidden (view full) --- 576 /* 577 * Mmap and write if less than 8M (the limit is so we don't totally 578 * trash memory on big files. This is really a minor hack, but it 579 * wins some CPU back. 580 */ 581 done_copy = 0; 582 if (size <= 8 * 1048576 && trymmap(from_fd)) { 583 if ((p = mmap(NULL, (size_t)size, PROT_READ, | 521 munmap(p, tsize); 522 goto out; 523 } 524 525 rv = memcmp(p, q, tsize); 526 munmap(p, tsize); 527 munmap(q, tsize); 528 done_compare = 1; --- 47 unchanged lines hidden (view full) --- 576 /* 577 * Mmap and write if less than 8M (the limit is so we don't totally 578 * trash memory on big files. This is really a minor hack, but it 579 * wins some CPU back. 580 */ 581 done_copy = 0; 582 if (size <= 8 * 1048576 && trymmap(from_fd)) { 583 if ((p = mmap(NULL, (size_t)size, PROT_READ, |
| 584 0, from_fd, (off_t)0)) == (char *)-1) | 584 MAP_SHARED, from_fd, (off_t)0)) == (char *)MAP_FAILED) |
| 585 goto out; 586 if ((nw = write(to_fd, p, size)) != size) { 587 serrno = errno; 588 (void)unlink(to_name); 589 errno = nw > 0 ? EIO : serrno; 590 err(EX_OSERR, "%s", to_name); 591 } 592 done_copy = 1; --- 114 unchanged lines hidden --- | 585 goto out; 586 if ((nw = write(to_fd, p, size)) != size) { 587 serrno = errno; 588 (void)unlink(to_name); 589 errno = nw > 0 ? EIO : serrno; 590 err(EX_OSERR, "%s", to_name); 591 } 592 done_copy = 1; --- 114 unchanged lines hidden --- |