Index: head/bin/df/df.1 =================================================================== --- head/bin/df/df.1 (revision 322292) +++ head/bin/df/df.1 (revision 322293) @@ -1,244 +1,244 @@ .\"- .\" Copyright (c) 1989, 1990, 1993 .\" The Regents of the University of California. All rights reserved. .\" .\" Redistribution and use in source and binary forms, with or without .\" modification, are permitted provided that the following conditions .\" are met: .\" 1. Redistributions of source code must retain the above copyright .\" notice, this list of conditions and the following disclaimer. .\" 2. Redistributions in binary form must reproduce the above copyright .\" notice, this list of conditions and the following disclaimer in the .\" documentation and/or other materials provided with the distribution. .\" 3. Neither the name of the University nor the names of its contributors .\" may be used to endorse or promote products derived from this software .\" without specific prior written permission. .\" .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE .\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF .\" SUCH DAMAGE. .\" .\" @(#)df.1 8.3 (Berkeley) 5/8/95 .\" $FreeBSD$ .\" -.Dd December 1, 2015 +.Dd August 8, 2017 .Dt DF 1 .Os .Sh NAME .Nm df .Nd display free disk space .Sh SYNOPSIS .Nm .Op Fl -libxo .Op Fl b | g | H | h | k | m | P .Op Fl acilnT .Op Fl \&, .Op Fl t Ar type .Op Ar file | filesystem ... .Sh DESCRIPTION The .Nm utility displays statistics about the amount of free disk space on the specified .Ar file system or on the file system of which .Ar file is a part. By default block counts are displayed with an assumed block size of 512 bytes. If neither a file or a file system operand is specified, statistics for all mounted file systems are displayed (subject to the .Fl t option below). .Pp The following options are available: .Bl -tag -width indent .It Fl -libxo Generate output via .Xr libxo 3 in a selection of different human and machine readable formats. See .Xr xo_parse_args 3 for details on command line arguments. .It Fl a Show all mount points, including those that were mounted with the .Dv MNT_IGNORE flag. This is implied for file systems specified on the command line. .It Fl b Explicitly use 512 byte blocks, overriding any .Ev BLOCKSIZE specification from the environment. This is the same as the .Fl P option. The .Fl k option overrides this option. .It Fl c Display a grand total. .It Fl g Use 1073741824 byte (1 Gibibyte) blocks rather than the default. This overrides any .Ev BLOCKSIZE specification from the environment. .It Fl h .Dq Human-readable output. Use unit suffixes: Byte, Kibibyte, Mebibyte, Gibibyte, Tebibyte and Pebibyte (based on powers of 1024) in order to reduce the number of digits to four or fewer. -.It Fl H +.It Fl H , Fl Fl si .Dq Human-readable output. Use unit suffixes: Byte, Kilobyte, Megabyte, Gigabyte, Terabyte and Petabyte (based on powers of 1000) in order to reduce the number of digits to four or fewer. .It Fl i Include statistics on the number of free and used inodes. In conjunction with the .Fl h or .Fl H options, the number of inodes is scaled by powers of 1000. .It Fl k Use 1024 byte (1 Kibibyte) blocks rather than the default. This overrides the .Fl P option and any .Ev BLOCKSIZE specification from the environment. .It Fl l Only display information about locally-mounted file systems. .It Fl m Use 1048576 byte (1 Mebibyte) blocks rather than the default. This overrides any .Ev BLOCKSIZE specification from the environment. .It Fl n Print out the previously obtained statistics from the file systems. This option should be used if it is possible that one or more file systems are in a state such that they will not be able to provide statistics without a long delay. When this option is specified, .Nm will not request new statistics from the file systems, but will respond with the possibly stale statistics that were previously obtained. .It Fl P Explicitly use 512 byte blocks, overriding any .Ev BLOCKSIZE specification from the environment. This is the same as the .Fl b option. The .Fl k option overrides this option. .It Fl t Only print out statistics for file systems of the specified types. More than one type may be specified in a comma separated list. The list of file system types can be prefixed with .Dq no to specify the file system types for which action should .Em not be taken. For example, the .Nm command: .Bd -literal -offset indent df -t nonfs,nullfs .Ed .Pp lists all file systems except those of type .Tn NFS and .Tn NULLFS . The .Xr lsvfs 1 command can be used to find out the types of file systems that are available on the system. .It Fl T Include file system type. .It Fl , (Comma) Print sizes grouped and separated by thousands using the non-monetary separator returned by .Xr localeconv 3 , typically a comma or period. If no locale is set, or the locale does not have a non-monetary separator, this option has no effect. .El .Sh ENVIRONMENT .Bl -tag -width BLOCKSIZE .It Ev BLOCKSIZE Specifies the units in which to report block counts. This uses .Xr getbsize 3 , which allows units of bytes or numbers scaled with the letters .Em k (for multiples of 1024 bytes), .Em m (for multiples of 1048576 bytes) or .Em g (for gibibytes). The allowed range is 512 bytes to 1 GB. If the value is outside, it will be set to the appropriate limit. .El .Sh SEE ALSO .Xr lsvfs 1 , .Xr quota 1 , .Xr fstatfs 2 , .Xr getfsstat 2 , .Xr statfs 2 , .Xr getbsize 3 , .Xr getmntinfo 3 , .Xr libxo 3 , .Xr localeconv 3 , .Xr xo_parse_args 3 , .Xr fstab 5 , .Xr mount 8 , .Xr pstat 8 , .Xr quot 8 , .Xr swapinfo 8 .Sh STANDARDS With the exception of most options, the .Nm utility conforms to .St -p1003.1-2004 , which defines only the .Fl k , P and .Fl t options. .Sh HISTORY A .Nm command appeared in .At v1 . .Sh BUGS The .Fl n flag is ignored if a file or file system is specified. Also, if a mount point is not accessible by the user, it is possible that the file system information could be stale. .Pp The .Fl b and .Fl P options are identical. The former comes from the BSD tradition, and the latter is required for .St -p1003.1-2004 conformity. Index: head/bin/df/df.c =================================================================== --- head/bin/df/df.c (revision 322292) +++ head/bin/df/df.c (revision 322293) @@ -1,698 +1,706 @@ /*- * Copyright (c) 1980, 1990, 1993, 1994 * The Regents of the University of California. All rights reserved. * (c) UNIX System Laboratories, Inc. * All or some portions of this file are derived from material licensed * to the University of California by American Telephone and Telegraph * Co. or Unix System Laboratories, Inc. and are reproduced herein with * the permission of UNIX System Laboratories, Inc. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #if 0 #ifndef lint static const char copyright[] = "@(#) Copyright (c) 1980, 1990, 1993, 1994\n\ The Regents of the University of California. All rights reserved.\n"; #endif /* not lint */ #ifndef lint static char sccsid[] = "@(#)df.c 8.9 (Berkeley) 5/8/95"; #endif /* not lint */ #endif #include __FBSDID("$FreeBSD$"); #include #include #include #include #ifdef MOUNT_CHAR_DEVS #include #endif #include +#include #include #include #ifdef MOUNT_CHAR_DEVS #include #endif #include #include #include #include #include #include #include #include "extern.h" #define UNITS_SI 1 #define UNITS_2 2 /* Maximum widths of various fields. */ struct maxwidths { int mntfrom; int fstype; int total; int used; int avail; int iused; int ifree; }; static void addstat(struct statfs *, struct statfs *); static char *getmntpt(const char *); static int int64width(int64_t); static char *makenetvfslist(void); static void prthuman(const struct statfs *, int64_t); static void prthumanval(const char *, int64_t); static intmax_t fsbtoblk(int64_t, uint64_t, u_long); static void prtstat(struct statfs *, struct maxwidths *); static size_t regetmntinfo(struct statfs **, long, const char **); static void update_maxwidths(struct maxwidths *, const struct statfs *); static void usage(void); static __inline int imax(int a, int b) { return (a > b ? a : b); } static int aflag = 0, cflag, hflag, iflag, kflag, lflag = 0, nflag, Tflag; static int thousands; #ifdef MOUNT_CHAR_DEVS static struct ufs_args mdev; #endif +static const struct option long_options[] = +{ + { "si", no_argument, NULL, 'H' }, + { NULL, no_argument, NULL, 0 }, +}; + int main(int argc, char *argv[]) { struct stat stbuf; struct statfs statfsbuf, totalbuf; struct maxwidths maxwidths; struct statfs *mntbuf; #ifdef MOUNT_CHAR_DEVS struct iovec *iov = NULL; #endif const char *fstype; #ifdef MOUNT_CHAR_DEVS char *mntpath; char errmsg[255] = {0}; #endif char *mntpt; const char **vfslist; int i, mntsize; int ch, rv; #ifdef MOUNT_CHAR_DEVS int iovlen = 0; #endif fstype = "ufs"; (void)setlocale(LC_ALL, ""); memset(&maxwidths, 0, sizeof(maxwidths)); memset(&totalbuf, 0, sizeof(totalbuf)); totalbuf.f_bsize = DEV_BSIZE; strlcpy(totalbuf.f_mntfromname, "total", MNAMELEN); vfslist = NULL; argc = xo_parse_args(argc, argv); if (argc < 0) exit(1); - while ((ch = getopt(argc, argv, "abcgHhiklmnPt:T,")) != -1) + while ((ch = getopt_long(argc, argv, "+abcgHhiklmnPt:T,", long_options, + NULL)) != -1) switch (ch) { case 'a': aflag = 1; break; case 'b': /* FALLTHROUGH */ case 'P': /* * POSIX specifically discusses the behavior of * both -k and -P. It states that the blocksize should * be set to 1024. Thus, if this occurs, simply break * rather than clobbering the old blocksize. */ if (kflag) break; setenv("BLOCKSIZE", "512", 1); hflag = 0; break; case 'c': cflag = 1; break; case 'g': setenv("BLOCKSIZE", "1g", 1); hflag = 0; break; case 'H': hflag = UNITS_SI; break; case 'h': hflag = UNITS_2; break; case 'i': iflag = 1; break; case 'k': kflag++; setenv("BLOCKSIZE", "1024", 1); hflag = 0; break; case 'l': /* Ignore duplicate -l */ if (lflag) break; if (vfslist != NULL) xo_errx(1, "-l and -t are mutually exclusive."); vfslist = makevfslist(makenetvfslist()); lflag = 1; break; case 'm': setenv("BLOCKSIZE", "1m", 1); hflag = 0; break; case 'n': nflag = 1; break; case 't': if (lflag) xo_errx(1, "-l and -t are mutually exclusive."); if (vfslist != NULL) xo_errx(1, "only one -t option may be specified"); fstype = optarg; vfslist = makevfslist(optarg); break; case 'T': Tflag = 1; break; case ',': thousands = 1; break; case '?': default: usage(); } argc -= optind; argv += optind; rv = 0; if (!*argv) { /* everything (modulo -t) */ mntsize = getmntinfo(&mntbuf, MNT_NOWAIT); mntsize = regetmntinfo(&mntbuf, mntsize, vfslist); } else { /* just the filesystems specified on the command line */ mntbuf = malloc(argc * sizeof(*mntbuf)); if (mntbuf == NULL) xo_err(1, "malloc()"); mntsize = 0; /* continued in for loop below */ } xo_open_container("storage-system-information"); xo_open_list("filesystem"); /* iterate through specified filesystems */ for (; *argv; argv++) { if (stat(*argv, &stbuf) < 0) { if ((mntpt = getmntpt(*argv)) == NULL) { xo_warn("%s", *argv); rv = 1; continue; } #ifdef MOUNT_CHAR_DEVS } else if (S_ISCHR(stbuf.st_mode)) { if ((mntpt = getmntpt(*argv)) == NULL) { mdev.fspec = *argv; mntpath = strdup("/tmp/df.XXXXXX"); if (mntpath == NULL) { xo_warn("strdup failed"); rv = 1; continue; } mntpt = mkdtemp(mntpath); if (mntpt == NULL) { xo_warn("mkdtemp(\"%s\") failed", mntpath); rv = 1; free(mntpath); continue; } if (iov != NULL) free_iovec(&iov, &iovlen); build_iovec_argf(&iov, &iovlen, "fstype", "%s", fstype); build_iovec_argf(&iov, &iovlen, "fspath", "%s", mntpath); build_iovec_argf(&iov, &iovlen, "from", "%s", *argv); build_iovec(&iov, &iovlen, "errmsg", errmsg, sizeof(errmsg)); if (nmount(iov, iovlen, MNT_RDONLY|MNT_NOEXEC) < 0) { if (errmsg[0]) xo_warn("%s: %s", *argv, errmsg); else xo_warn("%s", *argv); rv = 1; (void)rmdir(mntpt); free(mntpath); continue; } else if (statfs(mntpt, &statfsbuf) == 0) { statfsbuf.f_mntonname[0] = '\0'; prtstat(&statfsbuf, &maxwidths); if (cflag) addstat(&totalbuf, &statfsbuf); } else { xo_warn("%s", *argv); rv = 1; } (void)unmount(mntpt, 0); (void)rmdir(mntpt); free(mntpath); continue; } #endif } else mntpt = *argv; /* * Statfs does not take a `wait' flag, so we cannot * implement nflag here. */ if (statfs(mntpt, &statfsbuf) < 0) { xo_warn("%s", mntpt); rv = 1; continue; } /* * Check to make sure the arguments we've been given are * satisfied. Return an error if we have been asked to * list a mount point that does not match the other args * we've been given (-l, -t, etc.). */ if (checkvfsname(statfsbuf.f_fstypename, vfslist)) { rv = 1; continue; } /* the user asked for it, so ignore the ignore flag */ statfsbuf.f_flags &= ~MNT_IGNORE; /* add to list */ mntbuf[mntsize++] = statfsbuf; } memset(&maxwidths, 0, sizeof(maxwidths)); for (i = 0; i < mntsize; i++) { if (aflag || (mntbuf[i].f_flags & MNT_IGNORE) == 0) { update_maxwidths(&maxwidths, &mntbuf[i]); if (cflag) addstat(&totalbuf, &mntbuf[i]); } } for (i = 0; i < mntsize; i++) if (aflag || (mntbuf[i].f_flags & MNT_IGNORE) == 0) prtstat(&mntbuf[i], &maxwidths); xo_close_list("filesystem"); if (cflag) prtstat(&totalbuf, &maxwidths); xo_close_container("storage-system-information"); xo_finish(); exit(rv); } static char * getmntpt(const char *name) { size_t mntsize, i; struct statfs *mntbuf; mntsize = getmntinfo(&mntbuf, MNT_NOWAIT); for (i = 0; i < mntsize; i++) { if (!strcmp(mntbuf[i].f_mntfromname, name)) return (mntbuf[i].f_mntonname); } return (NULL); } /* * Make a pass over the file system info in ``mntbuf'' filtering out * file system types not in vfslist and possibly re-stating to get * current (not cached) info. Returns the new count of valid statfs bufs. */ static size_t regetmntinfo(struct statfs **mntbufp, long mntsize, const char **vfslist) { int error, i, j; struct statfs *mntbuf; if (vfslist == NULL) return (nflag ? mntsize : getmntinfo(mntbufp, MNT_WAIT)); mntbuf = *mntbufp; for (j = 0, i = 0; i < mntsize; i++) { if (checkvfsname(mntbuf[i].f_fstypename, vfslist)) continue; /* * XXX statfs(2) can fail for various reasons. It may be * possible that the user does not have access to the * pathname, if this happens, we will fall back on * "stale" filesystem statistics. */ error = statfs(mntbuf[i].f_mntonname, &mntbuf[j]); if (nflag || error < 0) if (i != j) { if (error < 0) xo_warnx("%s stats possibly stale", mntbuf[i].f_mntonname); mntbuf[j] = mntbuf[i]; } j++; } return (j); } static void prthuman(const struct statfs *sfsp, int64_t used) { prthumanval(" {:blocks/%6s}", sfsp->f_blocks * sfsp->f_bsize); prthumanval(" {:used/%6s}", used * sfsp->f_bsize); prthumanval(" {:available/%6s}", sfsp->f_bavail * sfsp->f_bsize); } static void prthumanval(const char *fmt, int64_t bytes) { char buf[6]; int flags; flags = HN_B | HN_NOSPACE | HN_DECIMAL; if (hflag == UNITS_SI) flags |= HN_DIVISOR_1000; humanize_number(buf, sizeof(buf) - (bytes < 0 ? 0 : 1), bytes, "", HN_AUTOSCALE, flags); xo_attr("value", "%lld", (long long) bytes); xo_emit(fmt, buf); } /* * Print an inode count in "human-readable" format. */ static void prthumanvalinode(const char *fmt, int64_t bytes) { char buf[6]; int flags; flags = HN_NOSPACE | HN_DECIMAL | HN_DIVISOR_1000; humanize_number(buf, sizeof(buf) - (bytes < 0 ? 0 : 1), bytes, "", HN_AUTOSCALE, flags); xo_attr("value", "%lld", (long long) bytes); xo_emit(fmt, buf); } /* * Convert statfs returned file system size into BLOCKSIZE units. */ static intmax_t fsbtoblk(int64_t num, uint64_t fsbs, u_long bs) { return (num * (intmax_t) fsbs / (int64_t) bs); } /* * Print out status about a file system. */ static void prtstat(struct statfs *sfsp, struct maxwidths *mwp) { static long blocksize; static int headerlen, timesthrough = 0; static const char *header; int64_t used, availblks, inodes; const char *format; if (++timesthrough == 1) { mwp->mntfrom = imax(mwp->mntfrom, (int)strlen("Filesystem")); mwp->fstype = imax(mwp->fstype, (int)strlen("Type")); if (thousands) { /* make space for commas */ mwp->total += (mwp->total - 1) / 3; mwp->used += (mwp->used - 1) / 3; mwp->avail += (mwp->avail - 1) / 3; mwp->iused += (mwp->iused - 1) / 3; mwp->ifree += (mwp->ifree - 1) / 3; } if (hflag) { header = " Size"; mwp->total = mwp->used = mwp->avail = (int)strlen(header); } else { header = getbsize(&headerlen, &blocksize); mwp->total = imax(mwp->total, headerlen); } mwp->used = imax(mwp->used, (int)strlen("Used")); mwp->avail = imax(mwp->avail, (int)strlen("Avail")); xo_emit("{T:/%-*s}", mwp->mntfrom, "Filesystem"); if (Tflag) xo_emit(" {T:/%-*s}", mwp->fstype, "Type"); xo_emit(" {T:/%*s} {T:/%*s} {T:/%*s} {T:Capacity}", mwp->total, header, mwp->used, "Used", mwp->avail, "Avail"); if (iflag) { mwp->iused = imax(hflag ? 0 : mwp->iused, (int)strlen(" iused")); mwp->ifree = imax(hflag ? 0 : mwp->ifree, (int)strlen("ifree")); xo_emit(" {T:/%*s} {T:/%*s} {T:\%iused}", mwp->iused - 2, "iused", mwp->ifree, "ifree"); } xo_emit(" {T:Mounted on}\n"); } xo_open_instance("filesystem"); /* Check for 0 block size. Can this happen? */ if (sfsp->f_bsize == 0) { xo_warnx ("File system %s does not have a block size, assuming 512.", sfsp->f_mntonname); sfsp->f_bsize = 512; } xo_emit("{tk:name/%-*s}", mwp->mntfrom, sfsp->f_mntfromname); if (Tflag) xo_emit(" {:type/%-*s}", mwp->fstype, sfsp->f_fstypename); used = sfsp->f_blocks - sfsp->f_bfree; availblks = sfsp->f_bavail + used; if (hflag) { prthuman(sfsp, used); } else { if (thousands) format = " {t:total-blocks/%*j'd} {t:used-blocks/%*j'd} " "{t:available-blocks/%*j'd}"; else format = " {t:total-blocks/%*jd} {t:used-blocks/%*jd} " "{t:available-blocks/%*jd}"; xo_emit(format, mwp->total, fsbtoblk(sfsp->f_blocks, sfsp->f_bsize, blocksize), mwp->used, fsbtoblk(used, sfsp->f_bsize, blocksize), mwp->avail, fsbtoblk(sfsp->f_bavail, sfsp->f_bsize, blocksize)); } xo_emit(" {:used-percent/%5.0f}{U:%%}", availblks == 0 ? 100.0 : (double)used / (double)availblks * 100.0); if (iflag) { inodes = sfsp->f_files; used = inodes - sfsp->f_ffree; if (hflag) { xo_emit(" "); prthumanvalinode(" {:inodes-used/%5s}", used); prthumanvalinode(" {:inodes-free/%5s}", sfsp->f_ffree); } else { if (thousands) format = " {:inodes-used/%*j'd} {:inodes-free/%*j'd}"; else format = " {:inodes-used/%*jd} {:inodes-free/%*jd}"; xo_emit(format, mwp->iused, (intmax_t)used, mwp->ifree, (intmax_t)sfsp->f_ffree); } xo_emit(" {:inodes-used-percent/%4.0f}{U:%%} ", inodes == 0 ? 100.0 : (double)used / (double)inodes * 100.0); } else xo_emit(" "); if (strncmp(sfsp->f_mntfromname, "total", MNAMELEN) != 0) xo_emit(" {:mounted-on}", sfsp->f_mntonname); xo_emit("\n"); xo_close_instance("filesystem"); } static void addstat(struct statfs *totalfsp, struct statfs *statfsp) { uint64_t bsize; bsize = statfsp->f_bsize / totalfsp->f_bsize; totalfsp->f_blocks += statfsp->f_blocks * bsize; totalfsp->f_bfree += statfsp->f_bfree * bsize; totalfsp->f_bavail += statfsp->f_bavail * bsize; totalfsp->f_files += statfsp->f_files; totalfsp->f_ffree += statfsp->f_ffree; } /* * Update the maximum field-width information in `mwp' based on * the file system specified by `sfsp'. */ static void update_maxwidths(struct maxwidths *mwp, const struct statfs *sfsp) { static long blocksize = 0; int dummy; if (blocksize == 0) getbsize(&dummy, &blocksize); mwp->mntfrom = imax(mwp->mntfrom, (int)strlen(sfsp->f_mntfromname)); mwp->fstype = imax(mwp->fstype, (int)strlen(sfsp->f_fstypename)); mwp->total = imax(mwp->total, int64width( fsbtoblk((int64_t)sfsp->f_blocks, sfsp->f_bsize, blocksize))); mwp->used = imax(mwp->used, int64width(fsbtoblk((int64_t)sfsp->f_blocks - (int64_t)sfsp->f_bfree, sfsp->f_bsize, blocksize))); mwp->avail = imax(mwp->avail, int64width(fsbtoblk(sfsp->f_bavail, sfsp->f_bsize, blocksize))); mwp->iused = imax(mwp->iused, int64width((int64_t)sfsp->f_files - sfsp->f_ffree)); mwp->ifree = imax(mwp->ifree, int64width(sfsp->f_ffree)); } /* Return the width in characters of the specified value. */ static int int64width(int64_t val) { int len; len = 0; /* Negative or zero values require one extra digit. */ if (val <= 0) { val = -val; len++; } while (val > 0) { len++; val /= 10; } return (len); } static void usage(void) { xo_error( "usage: df [-b | -g | -H | -h | -k | -m | -P] [-acilnT] [-t type] [-,]\n" " [file | filesystem ...]\n"); exit(EX_USAGE); } static char * makenetvfslist(void) { char *str, *strptr, **listptr; struct xvfsconf *xvfsp, *keep_xvfsp; size_t buflen; int cnt, i, maxvfsconf; if (sysctlbyname("vfs.conflist", NULL, &buflen, NULL, 0) < 0) { xo_warn("sysctl(vfs.conflist)"); return (NULL); } xvfsp = malloc(buflen); if (xvfsp == NULL) { xo_warnx("malloc failed"); return (NULL); } keep_xvfsp = xvfsp; if (sysctlbyname("vfs.conflist", xvfsp, &buflen, NULL, 0) < 0) { xo_warn("sysctl(vfs.conflist)"); free(keep_xvfsp); return (NULL); } maxvfsconf = buflen / sizeof(struct xvfsconf); if ((listptr = malloc(sizeof(char*) * maxvfsconf)) == NULL) { xo_warnx("malloc failed"); free(keep_xvfsp); return (NULL); } for (cnt = 0, i = 0; i < maxvfsconf; i++) { if (xvfsp->vfc_flags & VFCF_NETWORK) { listptr[cnt++] = strdup(xvfsp->vfc_name); if (listptr[cnt-1] == NULL) { xo_warnx("malloc failed"); free(listptr); free(keep_xvfsp); return (NULL); } } xvfsp++; } if (cnt == 0 || (str = malloc(sizeof(char) * (32 * cnt + cnt + 2))) == NULL) { if (cnt > 0) xo_warnx("malloc failed"); free(listptr); free(keep_xvfsp); return (NULL); } *str = 'n'; *(str + 1) = 'o'; for (i = 0, strptr = str + 2; i < cnt; i++, strptr++) { strlcpy(strptr, listptr[i], 32); strptr += strlen(listptr[i]); *strptr = ','; free(listptr[i]); } *(--strptr) = '\0'; free(keep_xvfsp); free(listptr); return (str); }