1*4887Schin /*********************************************************************** 2*4887Schin * * 3*4887Schin * This software is part of the ast package * 4*4887Schin * Copyright (c) 1985-2007 AT&T Knowledge Ventures * 5*4887Schin * and is licensed under the * 6*4887Schin * Common Public License, Version 1.0 * 7*4887Schin * by AT&T Knowledge Ventures * 8*4887Schin * * 9*4887Schin * A copy of the License is available at * 10*4887Schin * http://www.opensource.org/licenses/cpl1.0.txt * 11*4887Schin * (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) * 12*4887Schin * * 13*4887Schin * Information and Software Systems Research * 14*4887Schin * AT&T Research * 15*4887Schin * Florham Park NJ * 16*4887Schin * * 17*4887Schin * Glenn Fowler <gsf@research.att.com> * 18*4887Schin * David Korn <dgk@research.att.com> * 19*4887Schin * Phong Vo <kpv@research.att.com> * 20*4887Schin * * 21*4887Schin ***********************************************************************/ 22*4887Schin #pragma prototyped 23*4887Schin 24*4887Schin #include <ast.h> 25*4887Schin #include <ls.h> 26*4887Schin 27*4887Schin #if _lib_statvfs 28*4887Schin 29*4887Schin NoN(statvfs) 30*4887Schin 31*4887Schin #else 32*4887Schin 33*4887Schin #include <error.h> 34*4887Schin 35*4887Schin #define HUH (-1) 36*4887Schin 37*4887Schin #if _lib_statfs && _mem_f_files_statfs && ( _sys_statfs || _sys_vfs || _sys_mount ) 38*4887Schin 39*4887Schin #if _sys_statfs 40*4887Schin #include <sys/statfs.h> 41*4887Schin #else 42*4887Schin #if _sys_vfs 43*4887Schin #include <sys/vfs.h> 44*4887Schin #else 45*4887Schin #if _sys_mount 46*4887Schin #if _lib_getmntinfo 47*4887Schin #include <sys/param.h> /* expect some macro redefinitions here */ 48*4887Schin #endif 49*4887Schin #include <sys/mount.h> 50*4887Schin #endif 51*4887Schin #endif 52*4887Schin #endif 53*4887Schin 54*4887Schin #if _lib_statfs4 55*4887Schin #define FSTATFS(a,b) fstatfs(a,b,sizeof(struct statfs),0) 56*4887Schin #define STATFS(a,b) statfs(a,b,sizeof(struct statfs),0) 57*4887Schin #else 58*4887Schin #define FSTATFS(a,b) fstatfs(a,b) 59*4887Schin #define STATFS(a,b) statfs(a,b) 60*4887Schin #endif 61*4887Schin 62*4887Schin #if defined(__EXPORT__) 63*4887Schin #define extern __EXPORT__ 64*4887Schin #endif 65*4887Schin 66*4887Schin static void 67*4887Schin us2v(register struct statfs* ufs, register struct stat* st, register struct statvfs* vfs) 68*4887Schin { 69*4887Schin memset(vfs, 0, sizeof(*vfs)); 70*4887Schin vfs->f_bsize = vfs->f_frsize = ufs->f_bsize; 71*4887Schin vfs->f_blocks = ufs->f_blocks; 72*4887Schin vfs->f_bfree = ufs->f_bfree; 73*4887Schin vfs->f_bavail = 74*4887Schin #if _mem_f_bavail_statfs 75*4887Schin ufs->f_bavail; 76*4887Schin #else 77*4887Schin ufs->f_bfree; 78*4887Schin #endif 79*4887Schin vfs->f_files = ufs->f_files; 80*4887Schin vfs->f_ffree = ufs->f_ffree; 81*4887Schin vfs->f_favail = (ufs->f_ffree > 10) ? (ufs->f_ffree - 10) : 0; 82*4887Schin vfs->f_fsid = st->st_dev; 83*4887Schin strncpy(vfs->f_basetype, FS_default, sizeof(vfs->f_basetype) - 1); 84*4887Schin vfs->f_namemax = 14; 85*4887Schin strncpy(vfs->f_fstr, vfs->f_basetype, sizeof(vfs->f_fstr) - 1); 86*4887Schin } 87*4887Schin 88*4887Schin extern int 89*4887Schin fstatvfs(int fd, struct statvfs* vfs) 90*4887Schin { 91*4887Schin struct statfs ufs; 92*4887Schin struct stat st; 93*4887Schin 94*4887Schin if (FSTATFS(fd, &ufs) || fstat(fd, &st)) 95*4887Schin return(-1); 96*4887Schin us2v(&ufs, &st, vfs); 97*4887Schin return(0); 98*4887Schin } 99*4887Schin 100*4887Schin extern int 101*4887Schin statvfs(const char* path, struct statvfs* vfs) 102*4887Schin { 103*4887Schin struct statfs ufs; 104*4887Schin struct stat st; 105*4887Schin 106*4887Schin if (STATFS(path, &ufs) || stat(path, &st)) 107*4887Schin return(-1); 108*4887Schin us2v(&ufs, &st, vfs); 109*4887Schin return(0); 110*4887Schin } 111*4887Schin 112*4887Schin #else 113*4887Schin 114*4887Schin #if defined(__EXPORT__) 115*4887Schin #define extern __EXPORT__ 116*4887Schin #endif 117*4887Schin 118*4887Schin static void 119*4887Schin s2v(register struct stat* st, register struct statvfs* vfs) 120*4887Schin { 121*4887Schin memset(vfs, 0, sizeof(*vfs)); 122*4887Schin vfs->f_bsize = vfs->f_frsize = 123*4887Schin #if _mem_st_blksize_stat 124*4887Schin st->st_blksize; 125*4887Schin #else 126*4887Schin 512; 127*4887Schin #endif 128*4887Schin vfs->f_blocks = HUH; 129*4887Schin vfs->f_bfree = HUH; 130*4887Schin vfs->f_files = HUH; 131*4887Schin vfs->f_ffree = HUH; 132*4887Schin vfs->f_favail = HUH; 133*4887Schin vfs->f_fsid = st->st_dev; 134*4887Schin strncpy(vfs->f_basetype, FS_default, sizeof(vfs->f_basetype) - 1); 135*4887Schin vfs->f_namemax = 14; 136*4887Schin strncpy(vfs->f_fstr, vfs->f_basetype, sizeof(vfs->f_fstr) - 1); 137*4887Schin } 138*4887Schin 139*4887Schin extern int 140*4887Schin fstatvfs(int fd, struct statvfs* vfs) 141*4887Schin { 142*4887Schin struct stat st; 143*4887Schin 144*4887Schin if (fstat(fd, &st)) 145*4887Schin return(-1); 146*4887Schin s2v(&st, vfs); 147*4887Schin return(0); 148*4887Schin } 149*4887Schin 150*4887Schin extern int 151*4887Schin statvfs(const char* path, struct statvfs* vfs) 152*4887Schin { 153*4887Schin struct stat st; 154*4887Schin 155*4887Schin if (stat(path, &st)) 156*4887Schin return(-1); 157*4887Schin s2v(&st, vfs); 158*4887Schin return(0); 159*4887Schin } 160*4887Schin 161*4887Schin #endif 162*4887Schin 163*4887Schin #endif 164