toybox: toys/posix/df.c annotate

annotate toys/posix/df.c @ 681:44904c7212e7

Follow symlinks to get actual device name, getmountlist() reverses order for us now, detect stdout to full device.

author	Rob Landley <rob@landley.net>
date	Fri, 26 Oct 2012 21:15:31 -0500
parents	7e846e281e38
children	598263aee2b9

rev	line source
233 d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of Rob Landley <rob@landley.net> parents: 186 diff changeset	1 /* vi: set sw=4 ts=4:
d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of Rob Landley <rob@landley.net> parents: 186 diff changeset	2 *
2 67b517913e56 Infrastructure, first drop of toy shell, and a bit of work on df. landley@driftwood parents: 1 diff changeset	3 * df.c - report free disk space.
67b517913e56 Infrastructure, first drop of toy shell, and a bit of work on df. landley@driftwood parents: 1 diff changeset	4 *
233 d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of Rob Landley <rob@landley.net> parents: 186 diff changeset	5 * Copyright 2006 Rob Landley <rob@landley.net>
156 1e8f4b05cb65 Remove trailing whitespace (thanks to Charlie Shepherd), and a couple comment Rob Landley <rob@landley.net> parents: 90 diff changeset	6 *
656 6df4ccc0acbe Regularize command headers, update links to standards documents. Rob Landley <rob@landley.net> parents: 653 diff changeset	7 * See http://opengroup.org/onlinepubs/9699919799/utilities/df.html
233 d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of Rob Landley <rob@landley.net> parents: 186 diff changeset	8
234 163498bf547b Move NEWTOY() list from end of toylist.h to generated/newtoys.h. Rob Landley <rob@landley.net> parents: 233 diff changeset	9 USE_DF(NEWTOY(df, "Pkt*a", TOYFLAG_USR\|TOYFLAG_SBIN))
163498bf547b Move NEWTOY() list from end of toylist.h to generated/newtoys.h. Rob Landley <rob@landley.net> parents: 233 diff changeset	10
233 d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of Rob Landley <rob@landley.net> parents: 186 diff changeset	11 config DF
d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of Rob Landley <rob@landley.net> parents: 186 diff changeset	12 bool "df (disk free)"
d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of Rob Landley <rob@landley.net> parents: 186 diff changeset	13 default y
d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of Rob Landley <rob@landley.net> parents: 186 diff changeset	14 help
d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of Rob Landley <rob@landley.net> parents: 186 diff changeset	15 usage: df [-t type] [FILESYSTEM ...]
d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of Rob Landley <rob@landley.net> parents: 186 diff changeset	16
d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of Rob Landley <rob@landley.net> parents: 186 diff changeset	17 The "disk free" command, df shows total/used/available disk space for
d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of Rob Landley <rob@landley.net> parents: 186 diff changeset	18 each filesystem listed on the command line, or all currently mounted
d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of Rob Landley <rob@landley.net> parents: 186 diff changeset	19 filesystems.
d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of Rob Landley <rob@landley.net> parents: 186 diff changeset	20
d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of Rob Landley <rob@landley.net> parents: 186 diff changeset	21 -t type
d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of Rob Landley <rob@landley.net> parents: 186 diff changeset	22 Display only filesystems of this type.
d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of Rob Landley <rob@landley.net> parents: 186 diff changeset	23
d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of Rob Landley <rob@landley.net> parents: 186 diff changeset	24 config DF_PEDANTIC
d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of Rob Landley <rob@landley.net> parents: 186 diff changeset	25 bool "options -P and -k"
d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of Rob Landley <rob@landley.net> parents: 186 diff changeset	26 default y
d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of Rob Landley <rob@landley.net> parents: 186 diff changeset	27 depends on DF
d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of Rob Landley <rob@landley.net> parents: 186 diff changeset	28 help
d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of Rob Landley <rob@landley.net> parents: 186 diff changeset	29 usage: df [-Pk]
d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of Rob Landley <rob@landley.net> parents: 186 diff changeset	30
d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of Rob Landley <rob@landley.net> parents: 186 diff changeset	31 -P The SUSv3 "Pedantic" option
d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of Rob Landley <rob@landley.net> parents: 186 diff changeset	32
d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of Rob Landley <rob@landley.net> parents: 186 diff changeset	33 Provides a slightly less useful output format dictated by
d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of Rob Landley <rob@landley.net> parents: 186 diff changeset	34 the Single Unix Specification version 3, and sets the
d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of Rob Landley <rob@landley.net> parents: 186 diff changeset	35 units to 512 bytes instead of the default 1024 bytes.
d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of Rob Landley <rob@landley.net> parents: 186 diff changeset	36
d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of Rob Landley <rob@landley.net> parents: 186 diff changeset	37 -k Sets units back to 1024 bytes (the default without -P)
d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of Rob Landley <rob@landley.net> parents: 186 diff changeset	38 */
2 67b517913e56 Infrastructure, first drop of toy shell, and a bit of work on df. landley@driftwood parents: 1 diff changeset	39
674 7e846e281e38 New build infrastructure to generate FLAG_ macros and TT alias, #define FOR_commandname before #including toys.h to trigger it. Rename DEFINE_GLOBALS() to just GLOBALS() (because I could never remember if it was DECLARE_GLOBALS). Convert existing commands to use new infrastructure, and replace optflag constants with FLAG_ macros where appropriate. Rob Landley <rob@landley.net> parents: 656 diff changeset	40 #define FOR_df
1 59d58fab67c6 Next snapshot. Tries to grab something out of lib in order to build, I have landley@driftwood parents: diff changeset	41 #include "toys.h"
59d58fab67c6 Next snapshot. Tries to grab something out of lib in order to build, I have landley@driftwood parents: diff changeset	42
674 7e846e281e38 New build infrastructure to generate FLAG_ macros and TT alias, #define FOR_commandname before #including toys.h to trigger it. Rename DEFINE_GLOBALS() to just GLOBALS() (because I could never remember if it was DECLARE_GLOBALS). Convert existing commands to use new infrastructure, and replace optflag constants with FLAG_ macros where appropriate. Rob Landley <rob@landley.net> parents: 656 diff changeset	43 GLOBALS(
237 7cb15eae1664 Zap toylist.h, moving contents of global structures into DEFINE_GLOBALS() Rob Landley <rob@landley.net> parents: 234 diff changeset	44 struct arg_list *fstype;
7cb15eae1664 Zap toylist.h, moving contents of global structures into DEFINE_GLOBALS() Rob Landley <rob@landley.net> parents: 234 diff changeset	45
7cb15eae1664 Zap toylist.h, moving contents of global structures into DEFINE_GLOBALS() Rob Landley <rob@landley.net> parents: 234 diff changeset	46 long units;
7cb15eae1664 Zap toylist.h, moving contents of global structures into DEFINE_GLOBALS() Rob Landley <rob@landley.net> parents: 234 diff changeset	47 )
7cb15eae1664 Zap toylist.h, moving contents of global structures into DEFINE_GLOBALS() Rob Landley <rob@landley.net> parents: 234 diff changeset	48
7 fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	49 static void show_mt(struct mtab_list *mt)
fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	50 {
fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	51 int len;
9 8f8a8ac59c14 Closer support for "pedantic" option for SUSv3. (Ok, it's %ld instead of the landley@driftwood parents: 7 diff changeset	52 long size, used, avail, percent;
7 fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	53 uint64_t block;
681 44904c7212e7 Follow symlinks to get actual device name, getmountlist() reverses order for us now, detect stdout to full device. Rob Landley <rob@landley.net> parents: 674 diff changeset	54 char *device;
7 fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	55
fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	56 // Return if it wasn't found (should never happen, but with /etc/mtab...)
fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	57 if (!mt) return;
fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	58
fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	59 // If we have -t, skip other filesystem types
237 7cb15eae1664 Zap toylist.h, moving contents of global structures into DEFINE_GLOBALS() Rob Landley <rob@landley.net> parents: 234 diff changeset	60 if (TT.fstype) {
32 993eab821bd5 More work on option parsing. "df -t tmpfs" actually seems to work now. Rob Landley <rob@landley.net> parents: 27 diff changeset	61 struct arg_list *al;
7 fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	62
237 7cb15eae1664 Zap toylist.h, moving contents of global structures into DEFINE_GLOBALS() Rob Landley <rob@landley.net> parents: 234 diff changeset	63 for (al = TT.fstype; al; al = al->next) {
32 993eab821bd5 More work on option parsing. "df -t tmpfs" actually seems to work now. Rob Landley <rob@landley.net> parents: 27 diff changeset	64 if (!strcmp(mt->type, al->arg)) break;
993eab821bd5 More work on option parsing. "df -t tmpfs" actually seems to work now. Rob Landley <rob@landley.net> parents: 27 diff changeset	65 }
993eab821bd5 More work on option parsing. "df -t tmpfs" actually seems to work now. Rob Landley <rob@landley.net> parents: 27 diff changeset	66 if (!al) return;
7 fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	67 }
fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	68
fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	69 // If we don't have -a, skip synthetic filesystems
674 7e846e281e38 New build infrastructure to generate FLAG_ macros and TT alias, #define FOR_commandname before #including toys.h to trigger it. Rename DEFINE_GLOBALS() to just GLOBALS() (because I could never remember if it was DECLARE_GLOBALS). Convert existing commands to use new infrastructure, and replace optflag constants with FLAG_ macros where appropriate. Rob Landley <rob@landley.net> parents: 656 diff changeset	70 if (!(toys.optflags & FLAG_a) && !mt->statvfs.f_blocks) return;
7 fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	71
fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	72 // Figure out how much total/used/free space this filesystem has,
fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	73 // forcing 64-bit math because filesystems are big now.
560 979c5ab6f0c2 Replace ?: gcc extension with standard code Kevin Chase <kevincha99@hotmail.com> parents: 237 diff changeset	74 block = mt->statvfs.f_bsize ? mt->statvfs.f_bsize : 1;
237 7cb15eae1664 Zap toylist.h, moving contents of global structures into DEFINE_GLOBALS() Rob Landley <rob@landley.net> parents: 234 diff changeset	75 size = (long)((block * mt->statvfs.f_blocks) / TT.units);
7 fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	76 used = (long)((block * (mt->statvfs.f_blocks-mt->statvfs.f_bfree))
237 7cb15eae1664 Zap toylist.h, moving contents of global structures into DEFINE_GLOBALS() Rob Landley <rob@landley.net> parents: 234 diff changeset	77 / TT.units);
7 fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	78 avail = (long)((block
fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	79 * (getuid() ? mt->statvfs.f_bavail : mt->statvfs.f_bfree))
237 7cb15eae1664 Zap toylist.h, moving contents of global structures into DEFINE_GLOBALS() Rob Landley <rob@landley.net> parents: 234 diff changeset	80 / TT.units);
25 eb46bb5626cb New option parsing infrastructure (doesn't use getopt). Hook it up to Rob Landley <rob@landley.net> parents: 9 diff changeset	81 percent = size ? 100-(long)((100*(uint64_t)avail)/size) : 0;
7 fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	82
681 44904c7212e7 Follow symlinks to get actual device name, getmountlist() reverses order for us now, detect stdout to full device. Rob Landley <rob@landley.net> parents: 674 diff changeset	83 device = *mt->device == '/' ? realpath(mt->device, NULL) : NULL;
44904c7212e7 Follow symlinks to get actual device name, getmountlist() reverses order for us now, detect stdout to full device. Rob Landley <rob@landley.net> parents: 674 diff changeset	84 if (!device) device = mt->device;
44904c7212e7 Follow symlinks to get actual device name, getmountlist() reverses order for us now, detect stdout to full device. Rob Landley <rob@landley.net> parents: 674 diff changeset	85
7 fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	86 // Figure out appropriate spacing
681 44904c7212e7 Follow symlinks to get actual device name, getmountlist() reverses order for us now, detect stdout to full device. Rob Landley <rob@landley.net> parents: 674 diff changeset	87 len = 25 - strlen(device);
7 fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	88 if (len < 1) len = 1;
674 7e846e281e38 New build infrastructure to generate FLAG_ macros and TT alias, #define FOR_commandname before #including toys.h to trigger it. Rename DEFINE_GLOBALS() to just GLOBALS() (because I could never remember if it was DECLARE_GLOBALS). Convert existing commands to use new infrastructure, and replace optflag constants with FLAG_ macros where appropriate. Rob Landley <rob@landley.net> parents: 656 diff changeset	89 if (CFG_DF_PEDANTIC && (toys.optflags & FLAG_P)) {
681 44904c7212e7 Follow symlinks to get actual device name, getmountlist() reverses order for us now, detect stdout to full device. Rob Landley <rob@landley.net> parents: 674 diff changeset	90 xprintf("%s %ld %ld %ld %ld%% %s\n", device, size, used, avail,
9 8f8a8ac59c14 Closer support for "pedantic" option for SUSv3. (Ok, it's %ld instead of the landley@driftwood parents: 7 diff changeset	91 percent, mt->dir);
8f8a8ac59c14 Closer support for "pedantic" option for SUSv3. (Ok, it's %ld instead of the landley@driftwood parents: 7 diff changeset	92 } else {
681 44904c7212e7 Follow symlinks to get actual device name, getmountlist() reverses order for us now, detect stdout to full device. Rob Landley <rob@landley.net> parents: 674 diff changeset	93 xprintf("%s% *ld % 10ld % 9ld % 3ld%% %s\n", device, len,
9 8f8a8ac59c14 Closer support for "pedantic" option for SUSv3. (Ok, it's %ld instead of the landley@driftwood parents: 7 diff changeset	94 size, used, avail, percent, mt->dir);
8f8a8ac59c14 Closer support for "pedantic" option for SUSv3. (Ok, it's %ld instead of the landley@driftwood parents: 7 diff changeset	95 }
681 44904c7212e7 Follow symlinks to get actual device name, getmountlist() reverses order for us now, detect stdout to full device. Rob Landley <rob@landley.net> parents: 674 diff changeset	96
44904c7212e7 Follow symlinks to get actual device name, getmountlist() reverses order for us now, detect stdout to full device. Rob Landley <rob@landley.net> parents: 674 diff changeset	97 if (device != mt->device) free(device);
7 fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	98 }
fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	99
186 25447caf1b4b Change command main() functions to return void, and exit(toys.exitval) from Rob Landley <rob@landley.net> parents: 164 diff changeset	100 void df_main(void)
1 59d58fab67c6 Next snapshot. Tries to grab something out of lib in order to build, I have landley@driftwood parents: diff changeset	101 {
7 fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	102 struct mtab_list mt, mt2, *mtlist;
2 67b517913e56 Infrastructure, first drop of toy shell, and a bit of work on df. landley@driftwood parents: 1 diff changeset	103
7 fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	104 // Handle -P and -k
237 7cb15eae1664 Zap toylist.h, moving contents of global structures into DEFINE_GLOBALS() Rob Landley <rob@landley.net> parents: 234 diff changeset	105 TT.units = 1024;
674 7e846e281e38 New build infrastructure to generate FLAG_ macros and TT alias, #define FOR_commandname before #including toys.h to trigger it. Rename DEFINE_GLOBALS() to just GLOBALS() (because I could never remember if it was DECLARE_GLOBALS). Convert existing commands to use new infrastructure, and replace optflag constants with FLAG_ macros where appropriate. Rob Landley <rob@landley.net> parents: 656 diff changeset	106 if (CFG_DF_PEDANTIC && (toys.optflags & FLAG_P)) {
7 fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	107 // Units are 512 bytes if you select "pedantic" without "kilobytes".
674 7e846e281e38 New build infrastructure to generate FLAG_ macros and TT alias, #define FOR_commandname before #including toys.h to trigger it. Rename DEFINE_GLOBALS() to just GLOBALS() (because I could never remember if it was DECLARE_GLOBALS). Convert existing commands to use new infrastructure, and replace optflag constants with FLAG_ macros where appropriate. Rob Landley <rob@landley.net> parents: 656 diff changeset	108 if ((toys.optflags&(FLAG_P\|FLAG_k)) == FLAG_P) TT.units = 512;
7 fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	109 printf("Filesystem %ld-blocks Used Available Capacity Mounted on\n",
237 7cb15eae1664 Zap toylist.h, moving contents of global structures into DEFINE_GLOBALS() Rob Landley <rob@landley.net> parents: 234 diff changeset	110 TT.units);
7 fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	111 } else puts("Filesystem\t1K-blocks\tUsed Available Use% Mounted on");
fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	112
2 67b517913e56 Infrastructure, first drop of toy shell, and a bit of work on df. landley@driftwood parents: 1 diff changeset	113 mtlist = getmountlist(1);
7 fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	114
fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	115 // If we have a list of filesystems on the command line, loop through them.
25 eb46bb5626cb New option parsing infrastructure (doesn't use getopt). Hook it up to Rob Landley <rob@landley.net> parents: 9 diff changeset	116 if (*toys.optargs) {
eb46bb5626cb New option parsing infrastructure (doesn't use getopt). Hook it up to Rob Landley <rob@landley.net> parents: 9 diff changeset	117 char **next;
7 fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	118
25 eb46bb5626cb New option parsing infrastructure (doesn't use getopt). Hook it up to Rob Landley <rob@landley.net> parents: 9 diff changeset	119 for(next = toys.optargs; *next; next++) {
7 fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	120 struct stat st;
fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	121
fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	122 // Stat it (complain if we can't).
27 c471910a14e4 Fix thinko (inverted test). Rob Landley <rob@landley.net> parents: 25 diff changeset	123 if(stat(*next, &st)) {
164 c79290b54bd3 Fix error message Charlie Shepherd <masterdriverz@gentoo.org> parents: 156 diff changeset	124 perror_msg("`%s'", *next);
7 fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	125 toys.exitval = 1;
fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	126 continue;
fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	127 }
fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	128
fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	129 // Find and display this filesystem. Use _last_ hit in case of
fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	130 // -- bind mounts.
fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	131 mt2 = NULL;
681 44904c7212e7 Follow symlinks to get actual device name, getmountlist() reverses order for us now, detect stdout to full device. Rob Landley <rob@landley.net> parents: 674 diff changeset	132 for (mt = mtlist; mt; mt = mt->next) {
44904c7212e7 Follow symlinks to get actual device name, getmountlist() reverses order for us now, detect stdout to full device. Rob Landley <rob@landley.net> parents: 674 diff changeset	133 if (st.st_dev == mt->stat.st_dev) {
44904c7212e7 Follow symlinks to get actual device name, getmountlist() reverses order for us now, detect stdout to full device. Rob Landley <rob@landley.net> parents: 674 diff changeset	134 mt2 = mt;
44904c7212e7 Follow symlinks to get actual device name, getmountlist() reverses order for us now, detect stdout to full device. Rob Landley <rob@landley.net> parents: 674 diff changeset	135 break;
44904c7212e7 Follow symlinks to get actual device name, getmountlist() reverses order for us now, detect stdout to full device. Rob Landley <rob@landley.net> parents: 674 diff changeset	136 }
44904c7212e7 Follow symlinks to get actual device name, getmountlist() reverses order for us now, detect stdout to full device. Rob Landley <rob@landley.net> parents: 674 diff changeset	137 }
7 fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	138 show_mt(mt2);
fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	139 }
fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	140 } else {
fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	141 // Get and loop through mount list.
fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	142
fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	143 for (mt = mtlist; mt; mt = mt->next) {
fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	144 struct mtab_list mt2, mt3;
fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	145
fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	146 if (!mt->stat.st_dev) continue;
fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	147
fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	148 // Filter out overmounts.
fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	149 mt3 = mt;
fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	150 for (mt2 = mt->next; mt2; mt2 = mt2->next) {
fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	151 if (mt->stat.st_dev == mt2->stat.st_dev) {
fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	152 // For --bind mounts, take last match
fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	153 if (!strcmp(mt->device, mt2->device)) mt3 = mt2;
fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	154 // Filter out overmounts
fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	155 mt2->stat.st_dev = 0;
fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	156 }
fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	157 }
fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	158 show_mt(mt3);
fc9c0503d5e2 Implement df. Add -Wall to build and fix up warnings. Add copyright notices. landley@driftwood parents: 2 diff changeset	159 }
2 67b517913e56 Infrastructure, first drop of toy shell, and a bit of work on df. landley@driftwood parents: 1 diff changeset	160 }
67b517913e56 Infrastructure, first drop of toy shell, and a bit of work on df. landley@driftwood parents: 1 diff changeset	161
624 1e8b9acdafeb Genericize llist code a bit: rename llist_free() to llist_traverse(), and no longer accept NULL as a synonym for free. Rob Landley <rob@landley.net> parents: 560 diff changeset	162 if (CFG_TOYBOX_FREE) llist_traverse(mtlist, free);
1 59d58fab67c6 Next snapshot. Tries to grab something out of lib in order to build, I have landley@driftwood parents: diff changeset	163 }

Mercurial > hg > toybox

annotate toys/posix/df.c @ 681:44904c7212e7