Move commands into "posix", "lsb", and "other" menus/directories.

1 files changed, 154 insertions, 0 deletions

diff --git a/toys/posix/df.c b/toys/posix/df.c
new file mode 100644
index 00000000..72c15195
--- /dev/null
+++ b/toys/posix/df.c
@@ -0,0 +1,154 @@
+/* vi: set sw=4 ts=4:
+ *
+ * df.c - report free disk space.
+ *
+ * Copyright 2006 Rob Landley <rob@landley.net>
+ *
+ * See http://www.opengroup.org/onlinepubs/009695399/utilities/df.html
+
+USE_DF(NEWTOY(df, "Pkt*a", TOYFLAG_USR|TOYFLAG_SBIN))
+
+config DF
+	bool "df (disk free)"
+	default y
+	help
+	  usage: df [-t type] [FILESYSTEM ...]
+
+	  The "disk free" command, df shows total/used/available disk space for
+	  each filesystem listed on the command line, or all currently mounted
+	  filesystems.
+
+	  -t type
+		Display only filesystems of this type.
+
+config DF_PEDANTIC
+	bool "options -P and -k"
+	default y
+	depends on DF
+	help
+	  usage: df [-Pk]
+
+	  -P	The SUSv3 "Pedantic" option
+
+		Provides a slightly less useful output format dictated by
+		the Single Unix Specification version 3, and sets the
+		units to 512 bytes instead of the default 1024 bytes.
+
+	  -k	Sets units back to 1024 bytes (the default without -P)
+*/
+
+#include "toys.h"
+
+DEFINE_GLOBALS(
+	struct arg_list *fstype;
+
+	long units;
+)
+
+#define TT this.df
+
+static void show_mt(struct mtab_list *mt)
+{
+	int len;
+	long size, used, avail, percent;
+	uint64_t block;
+
+	// Return if it wasn't found (should never happen, but with /etc/mtab...)
+	if (!mt) return;
+
+	// If we have -t, skip other filesystem types
+	if (TT.fstype) {
+		struct arg_list *al;
+
+		for (al = TT.fstype; al; al = al->next) {
+			if (!strcmp(mt->type, al->arg)) break;
+		}
+		if (!al) return;
+	}
+
+	// If we don't have -a, skip synthetic filesystems
+	if (!(toys.optflags & 1) && !mt->statvfs.f_blocks) return;
+
+	// Figure out how much total/used/free space this filesystem has,
+	// forcing 64-bit math because filesystems are big now.
+	block = mt->statvfs.f_bsize ? mt->statvfs.f_bsize : 1;
+	size = (long)((block * mt->statvfs.f_blocks) / TT.units);
+	used = (long)((block * (mt->statvfs.f_blocks-mt->statvfs.f_bfree))
+			/ TT.units);
+	avail = (long)((block
+				* (getuid() ? mt->statvfs.f_bavail : mt->statvfs.f_bfree))
+			/ TT.units);
+	percent = size ? 100-(long)((100*(uint64_t)avail)/size) : 0;
+
+	// Figure out appropriate spacing
+	len = 25 - strlen(mt->device);
+	if (len < 1) len = 1;
+	if (CFG_DF_PEDANTIC && (toys.optflags & 8)) {
+		printf("%s %ld %ld %ld %ld%% %s\n", mt->device, size, used, avail,
+				percent, mt->dir);
+	} else {
+		printf("%s% *ld % 10ld % 9ld % 3ld%% %s\n",mt->device, len,
+			size, used, avail, percent, mt->dir);
+	}
+}
+
+void df_main(void)
+{
+	struct mtab_list *mt, *mt2, *mtlist;
+
+	// Handle -P and -k
+	TT.units = 1024;
+	if (CFG_DF_PEDANTIC && (toys.optflags & 8)) {
+		// Units are 512 bytes if you select "pedantic" without "kilobytes".
+		if ((toys.optflags&3) == 1) TT.units = 512;
+		printf("Filesystem %ld-blocks Used Available Capacity Mounted on\n",
+			TT.units);
+	} else puts("Filesystem\t1K-blocks\tUsed Available Use% Mounted on");
+
+	mtlist = getmountlist(1);
+
+	// If we have a list of filesystems on the command line, loop through them.
+	if (*toys.optargs) {
+		char **next;
+
+		for(next = toys.optargs; *next; next++) {
+			struct stat st;
+
+			// Stat it (complain if we can't).
+			if(stat(*next, &st)) {
+				perror_msg("`%s'", *next);
+				toys.exitval = 1;
+				continue;
+			}
+
+			// Find and display this filesystem.  Use _last_ hit in case of
+			// -- bind mounts.
+			mt2 = NULL;
+			for (mt = mtlist; mt; mt = mt->next)
+				if (st.st_dev == mt->stat.st_dev) mt2 = mt;
+			show_mt(mt2);
+		}
+	} else {
+		// Get and loop through mount list.
+
+		for (mt = mtlist; mt; mt = mt->next) {
+			struct mtab_list *mt2, *mt3;
+
+			if (!mt->stat.st_dev) continue;
+
+			// Filter out overmounts.
+			mt3 = mt;
+			for (mt2 = mt->next; mt2; mt2 = mt2->next) {
+				if (mt->stat.st_dev == mt2->stat.st_dev) {
+					// For --bind mounts, take last match
+					if (!strcmp(mt->device, mt2->device)) mt3 = mt2;
+					// Filter out overmounts
+					mt2->stat.st_dev = 0;
+				}
+			}
+			show_mt(mt3);
+		}
+	}
+
+	if (CFG_TOYBOX_FREE) llist_traverse(mtlist, free);
+}