14887Schin /*********************************************************************** 24887Schin * * 34887Schin * This software is part of the ast package * 4*12068SRoger.Faulkner@Oracle.COM * Copyright (c) 1985-2010 AT&T Intellectual Property * 54887Schin * and is licensed under the * 64887Schin * Common Public License, Version 1.0 * 78462SApril.Chin@Sun.COM * by AT&T Intellectual Property * 84887Schin * * 94887Schin * A copy of the License is available at * 104887Schin * http://www.opensource.org/licenses/cpl1.0.txt * 114887Schin * (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) * 124887Schin * * 134887Schin * Information and Software Systems Research * 144887Schin * AT&T Research * 154887Schin * Florham Park NJ * 164887Schin * * 174887Schin * Glenn Fowler <gsf@research.att.com> * 184887Schin * David Korn <dgk@research.att.com> * 194887Schin * Phong Vo <kpv@research.att.com> * 204887Schin * * 214887Schin ***********************************************************************/ 224887Schin #pragma prototyped 234887Schin /* 244887Schin * aux function for <ls.h> iblocks() macro 254887Schin * 264887Schin * return number of blocks, including indirect block count 274887Schin * given stat info 284887Schin * 294887Schin * mail gsf@research.att.com when you figure out the stat.st_blocks units 304887Schin * until then we assume LS_BLOCKSIZE (512) 314887Schin */ 324887Schin 334887Schin #include <ast.h> 344887Schin #if _AIX /* XXX */ 354887Schin #undef major 364887Schin #undef minor 374887Schin #undef makedev 384887Schin #endif 394887Schin #include <ast_param.h> 404887Schin #include <ls.h> 414887Schin 424887Schin #if !_mem_st_blocks_stat 434887Schin 444887Schin #ifndef B_DIRECT 454887Schin #define B_DIRECT 10 464887Schin #endif 474887Schin 484887Schin #ifdef BITFS 494887Schin 504887Schin #define B_SIZE BSIZE(st->st_dev) 514887Schin #define B_INDIRECT NINDIR(st->st_dev) 524887Schin 534887Schin #else 544887Schin 554887Schin #ifdef BSIZE 564887Schin #define B_SIZE BSIZE 574887Schin #else 584887Schin #define B_SIZE 1024 594887Schin #endif 604887Schin 614887Schin #ifdef NINDIR 624887Schin #define B_INDIRECT NINDIR 634887Schin #else 644887Schin #define B_INDIRECT 128 654887Schin #endif 664887Schin 674887Schin #endif 684887Schin 694887Schin #endif 704887Schin 714887Schin off_t _iblocks(register struct stat * st)724887Schin_iblocks(register struct stat* st) 734887Schin { 744887Schin #if _mem_st_blocks_stat 754887Schin 764887Schin return (st->st_blocks <= 0 || st->st_size <= 0) ? 0 : st->st_blocks; 774887Schin 784887Schin #else 794887Schin unsigned long b; 804887Schin unsigned long t; 814887Schin 824887Schin t = b = (st->st_size + B_SIZE - 1) / B_SIZE; 834887Schin if ((b -= B_DIRECT) > 0) 844887Schin { 854887Schin t += (b - 1) / B_INDIRECT + 1; 864887Schin if ((b -= B_INDIRECT) > 0) 874887Schin { 884887Schin t += (b - 1) / (B_INDIRECT * B_INDIRECT) + 1; 894887Schin if (b > B_INDIRECT * B_INDIRECT) 904887Schin t++; 914887Schin } 924887Schin } 934887Schin return t * B_SIZE / LS_BLOCKSIZE; 944887Schin #endif 954887Schin } 96