Hi,
Incorporated Steve's changes as well to make it compile/work
on OpenBSD. I realize #ifdef's are terrible but for now it should
do the trick until we come up with a proper solution to this.
Thanks,
sin
>From 34e65ec1b392a90f7d46c90c2d67a25dd6219a4d Mon Sep 17 00:00:00 2001
From: sin <s...@2f30.org>
Date: Mon, 22 Jul 2013 13:17:32 +0100
Subject: [PATCH] Add df(1)
---
Makefile | 1 +
df.c | 90 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 91 insertions(+)
create mode 100644 df.c
diff --git a/Makefile b/Makefile
index 2e31f33..bb981ce 100644
--- a/Makefile
+++ b/Makefile
@@ -38,6 +38,7 @@ SRC = \
comm.c \
cp.c \
date.c \
+ df.c \
dirname.c \
echo.c \
env.c \
diff --git a/df.c b/df.c
new file mode 100644
index 0000000..75be614
--- /dev/null
+++ b/df.c
@@ -0,0 +1,90 @@
+#ifdef __OpenBSD__
+#include <sys/param.h>
+#include <sys/mount.h>
+#else
+#include <mntent.h>
+#endif
+
+#include <sys/statvfs.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include "util.h"
+
+static void mnt_show(const char *fsname, const char *dir);
+
+static void
+usage(void)
+{
+ eprintf("usage: %s\n", argv0);
+}
+
+int
+main(int argc, char *argv[])
+{
+#ifdef __OpenBSD__
+ struct statfs *mntbuf;
+ int len, i;
+#else
+ FILE *fp;
+ struct mntent *me;
+#endif
+
+ ARGBEGIN {
+ case 'a':
+ break;
+ case 's':
+ case 'h':
+ case 'i':
+ eprintf("not implemented\n");
+ default:
+ usage();
+ } ARGEND;
+
+ printf("Filesystem 512-blocks Used Avail Capacity Mounted
on\n");
+
+#ifdef __OpenBSD__
+ len = getmntinfo(&mntbuf, MNT_WAIT);
+ if (len == 0)
+ eprintf("gemntinfo:");
+
+ for (i = 0; i < len; i++)
+ mnt_show(mntbuf[i].f_mntfromname,
+ mntbuf[i].f_mntonname);
+#else
+ fp = setmntent("/proc/mounts", "r");
+ if (!fp)
+ eprintf("fopen /proc/mounts:");
+
+ while ((me = getmntent(fp)))
+ mnt_show(me->mnt_fsname, me->mnt_dir);
+
+ endmntent(fp);
+#endif
+ return 0;
+}
+
+static void
+mnt_show(const char *fsname, const char *dir)
+{
+ struct statvfs s;
+ unsigned long long total, used, avail;
+ int capacity = 0;
+ int bs;
+
+ statvfs(dir, &s);
+
+ bs = s.f_frsize / 512;
+ total = s.f_blocks * bs;
+ avail = s.f_bfree * bs;
+ used = total - avail;
+
+ if (used + avail) {
+ capacity = (used * 100) / (used + avail);
+ if (used * 100 != capacity * (used + avail))
+ capacity++;
+ }
+
+ printf("%-12s %9llu %9llu %9llu %7d%% %s\n",
+ fsname, total, used, avail, capacity,
+ dir);
+}
--
1.8.3.4
