diff options
Diffstat (limited to 'usr/src/lib/libast/common/comp/statvfs.c')
| -rw-r--r-- | usr/src/lib/libast/common/comp/statvfs.c | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/usr/src/lib/libast/common/comp/statvfs.c b/usr/src/lib/libast/common/comp/statvfs.c new file mode 100644 index 0000000000..3ba4c56c95 --- /dev/null +++ b/usr/src/lib/libast/common/comp/statvfs.c @@ -0,0 +1,163 @@ +/*********************************************************************** +* * +* This software is part of the ast package * +* Copyright (c) 1985-2007 AT&T Knowledge Ventures * +* and is licensed under the * +* Common Public License, Version 1.0 * +* by AT&T Knowledge Ventures * +* * +* A copy of the License is available at * +* http://www.opensource.org/licenses/cpl1.0.txt * +* (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) * +* * +* Information and Software Systems Research * +* AT&T Research * +* Florham Park NJ * +* * +* Glenn Fowler <gsf@research.att.com> * +* David Korn <dgk@research.att.com> * +* Phong Vo <kpv@research.att.com> * +* * +***********************************************************************/ +#pragma prototyped + +#include <ast.h> +#include <ls.h> + +#if _lib_statvfs + +NoN(statvfs) + +#else + +#include <error.h> + +#define HUH (-1) + +#if _lib_statfs && _mem_f_files_statfs && ( _sys_statfs || _sys_vfs || _sys_mount ) + +#if _sys_statfs +#include <sys/statfs.h> +#else +#if _sys_vfs +#include <sys/vfs.h> +#else +#if _sys_mount +#if _lib_getmntinfo +#include <sys/param.h> /* expect some macro redefinitions here */ +#endif +#include <sys/mount.h> +#endif +#endif +#endif + +#if _lib_statfs4 +#define FSTATFS(a,b) fstatfs(a,b,sizeof(struct statfs),0) +#define STATFS(a,b) statfs(a,b,sizeof(struct statfs),0) +#else +#define FSTATFS(a,b) fstatfs(a,b) +#define STATFS(a,b) statfs(a,b) +#endif + +#if defined(__EXPORT__) +#define extern __EXPORT__ +#endif + +static void +us2v(register struct statfs* ufs, register struct stat* st, register struct statvfs* vfs) +{ + memset(vfs, 0, sizeof(*vfs)); + vfs->f_bsize = vfs->f_frsize = ufs->f_bsize; + vfs->f_blocks = ufs->f_blocks; + vfs->f_bfree = ufs->f_bfree; + vfs->f_bavail = +#if _mem_f_bavail_statfs + ufs->f_bavail; +#else + ufs->f_bfree; +#endif + vfs->f_files = ufs->f_files; + vfs->f_ffree = ufs->f_ffree; + vfs->f_favail = (ufs->f_ffree > 10) ? (ufs->f_ffree - 10) : 0; + vfs->f_fsid = st->st_dev; + strncpy(vfs->f_basetype, FS_default, sizeof(vfs->f_basetype) - 1); + vfs->f_namemax = 14; + strncpy(vfs->f_fstr, vfs->f_basetype, sizeof(vfs->f_fstr) - 1); +} + +extern int +fstatvfs(int fd, struct statvfs* vfs) +{ + struct statfs ufs; + struct stat st; + + if (FSTATFS(fd, &ufs) || fstat(fd, &st)) + return(-1); + us2v(&ufs, &st, vfs); + return(0); +} + +extern int +statvfs(const char* path, struct statvfs* vfs) +{ + struct statfs ufs; + struct stat st; + + if (STATFS(path, &ufs) || stat(path, &st)) + return(-1); + us2v(&ufs, &st, vfs); + return(0); +} + +#else + +#if defined(__EXPORT__) +#define extern __EXPORT__ +#endif + +static void +s2v(register struct stat* st, register struct statvfs* vfs) +{ + memset(vfs, 0, sizeof(*vfs)); + vfs->f_bsize = vfs->f_frsize = +#if _mem_st_blksize_stat + st->st_blksize; +#else + 512; +#endif + vfs->f_blocks = HUH; + vfs->f_bfree = HUH; + vfs->f_files = HUH; + vfs->f_ffree = HUH; + vfs->f_favail = HUH; + vfs->f_fsid = st->st_dev; + strncpy(vfs->f_basetype, FS_default, sizeof(vfs->f_basetype) - 1); + vfs->f_namemax = 14; + strncpy(vfs->f_fstr, vfs->f_basetype, sizeof(vfs->f_fstr) - 1); +} + +extern int +fstatvfs(int fd, struct statvfs* vfs) +{ + struct stat st; + + if (fstat(fd, &st)) + return(-1); + s2v(&st, vfs); + return(0); +} + +extern int +statvfs(const char* path, struct statvfs* vfs) +{ + struct stat st; + + if (stat(path, &st)) + return(-1); + s2v(&st, vfs); + return(0); +} + +#endif + +#endif |