1*0Sstevel@tonic-gate /*- 2*0Sstevel@tonic-gate * See the file LICENSE for redistribution information. 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * Copyright (c) 1997, 1998 5*0Sstevel@tonic-gate * Sleepycat Software. All rights reserved. 6*0Sstevel@tonic-gate */ 7*0Sstevel@tonic-gate 8*0Sstevel@tonic-gate #include "config.h" 9*0Sstevel@tonic-gate 10*0Sstevel@tonic-gate #ifndef lint 11*0Sstevel@tonic-gate static const char sccsid[] = "@(#)os_stat.c 10.18 (Sleepycat) 10/12/98"; 12*0Sstevel@tonic-gate #endif /* not lint */ 13*0Sstevel@tonic-gate 14*0Sstevel@tonic-gate #ifndef NO_SYSTEM_INCLUDES 15*0Sstevel@tonic-gate #include <sys/types.h> 16*0Sstevel@tonic-gate #include <sys/stat.h> 17*0Sstevel@tonic-gate 18*0Sstevel@tonic-gate #include <errno.h> 19*0Sstevel@tonic-gate #endif 20*0Sstevel@tonic-gate 21*0Sstevel@tonic-gate #include "db_int.h" 22*0Sstevel@tonic-gate #include "os_jump.h" 23*0Sstevel@tonic-gate 24*0Sstevel@tonic-gate /* 25*0Sstevel@tonic-gate * __os_exists -- 26*0Sstevel@tonic-gate * Return if the file exists. 27*0Sstevel@tonic-gate * 28*0Sstevel@tonic-gate * PUBLIC: int __os_exists __P((const char *, int *)); 29*0Sstevel@tonic-gate */ 30*0Sstevel@tonic-gate int 31*0Sstevel@tonic-gate __os_exists(path, isdirp) 32*0Sstevel@tonic-gate const char *path; 33*0Sstevel@tonic-gate int *isdirp; 34*0Sstevel@tonic-gate { 35*0Sstevel@tonic-gate struct stat sb; 36*0Sstevel@tonic-gate 37*0Sstevel@tonic-gate if (__db_jump.j_exists != NULL) 38*0Sstevel@tonic-gate return (__db_jump.j_exists(path, isdirp)); 39*0Sstevel@tonic-gate 40*0Sstevel@tonic-gate if (stat(path, &sb) != 0) 41*0Sstevel@tonic-gate return (errno); 42*0Sstevel@tonic-gate 43*0Sstevel@tonic-gate #if !defined(S_ISDIR) || defined(STAT_MACROS_BROKEN) 44*0Sstevel@tonic-gate #if defined(_WIN32) || defined(WIN16) 45*0Sstevel@tonic-gate #define S_ISDIR(m) (_S_IFDIR & (m)) 46*0Sstevel@tonic-gate #else 47*0Sstevel@tonic-gate #define S_ISDIR(m) (((m) & 0170000) == 0040000) 48*0Sstevel@tonic-gate #endif 49*0Sstevel@tonic-gate #endif 50*0Sstevel@tonic-gate if (isdirp != NULL) 51*0Sstevel@tonic-gate *isdirp = S_ISDIR(sb.st_mode); 52*0Sstevel@tonic-gate 53*0Sstevel@tonic-gate return (0); 54*0Sstevel@tonic-gate } 55*0Sstevel@tonic-gate 56*0Sstevel@tonic-gate /* 57*0Sstevel@tonic-gate * __os_ioinfo -- 58*0Sstevel@tonic-gate * Return file size and I/O size; abstracted to make it easier 59*0Sstevel@tonic-gate * to replace. 60*0Sstevel@tonic-gate * 61*0Sstevel@tonic-gate * PUBLIC: int __os_ioinfo 62*0Sstevel@tonic-gate * PUBLIC: __P((const char *, int, u_int32_t *, u_int32_t *, u_int32_t *)); 63*0Sstevel@tonic-gate */ 64*0Sstevel@tonic-gate int 65*0Sstevel@tonic-gate __os_ioinfo(path, fd, mbytesp, bytesp, iosizep) 66*0Sstevel@tonic-gate const char *path; 67*0Sstevel@tonic-gate int fd; 68*0Sstevel@tonic-gate u_int32_t *mbytesp, *bytesp, *iosizep; 69*0Sstevel@tonic-gate { 70*0Sstevel@tonic-gate struct stat sb; 71*0Sstevel@tonic-gate 72*0Sstevel@tonic-gate if (__db_jump.j_ioinfo != NULL) 73*0Sstevel@tonic-gate return (__db_jump.j_ioinfo(path, fd, mbytesp, bytesp, iosizep)); 74*0Sstevel@tonic-gate 75*0Sstevel@tonic-gate if (fstat(fd, &sb) == -1) 76*0Sstevel@tonic-gate return (errno); 77*0Sstevel@tonic-gate 78*0Sstevel@tonic-gate /* Return the size of the file. */ 79*0Sstevel@tonic-gate if (mbytesp != NULL) 80*0Sstevel@tonic-gate *mbytesp = sb.st_size / MEGABYTE; 81*0Sstevel@tonic-gate if (bytesp != NULL) 82*0Sstevel@tonic-gate *bytesp = sb.st_size % MEGABYTE; 83*0Sstevel@tonic-gate 84*0Sstevel@tonic-gate /* 85*0Sstevel@tonic-gate * Return the underlying filesystem blocksize, if available. 86*0Sstevel@tonic-gate * 87*0Sstevel@tonic-gate * XXX 88*0Sstevel@tonic-gate * Check for a 0 size -- the HP MPE/iX architecture has st_blksize, 89*0Sstevel@tonic-gate * but it's always 0. 90*0Sstevel@tonic-gate */ 91*0Sstevel@tonic-gate #ifdef HAVE_ST_BLKSIZE 92*0Sstevel@tonic-gate if (iosizep != NULL && (*iosizep = sb.st_blksize) == 0) 93*0Sstevel@tonic-gate *iosizep = DB_DEF_IOSIZE; 94*0Sstevel@tonic-gate #else 95*0Sstevel@tonic-gate if (iosizep != NULL) 96*0Sstevel@tonic-gate *iosizep = DB_DEF_IOSIZE; 97*0Sstevel@tonic-gate #endif 98*0Sstevel@tonic-gate return (0); 99*0Sstevel@tonic-gate } 100