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-rw-r--r--openbsd-compat/bsd-statvfs.c88
1 files changed, 88 insertions, 0 deletions
diff --git a/openbsd-compat/bsd-statvfs.c b/openbsd-compat/bsd-statvfs.c
new file mode 100644
index 0000000..e3bd87d
--- /dev/null
+++ b/openbsd-compat/bsd-statvfs.c
@@ -0,0 +1,88 @@
+/*
+ * Copyright (c) 2008,2014 Darren Tucker <dtucker@zip.com.au>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
+ * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "includes.h"
+
+#if !defined(HAVE_STATVFS) || !defined(HAVE_FSTATVFS)
+
+#include <sys/param.h>
+#ifdef HAVE_SYS_MOUNT_H
+# include <sys/mount.h>
+#endif
+
+#include <errno.h>
+
+#ifndef MNAMELEN
+# define MNAMELEN 32
+#endif
+
+static void
+copy_statfs_to_statvfs(struct statvfs *to, struct statfs *from)
+{
+ to->f_bsize = from->f_bsize;
+ to->f_frsize = from->f_bsize; /* no exact equivalent */
+ to->f_blocks = from->f_blocks;
+ to->f_bfree = from->f_bfree;
+ to->f_bavail = from->f_bavail;
+ to->f_files = from->f_files;
+ to->f_ffree = from->f_ffree;
+ to->f_favail = from->f_ffree; /* no exact equivalent */
+ to->f_fsid = 0; /* XXX fix me */
+#ifdef HAVE_STRUCT_STATFS_F_FLAGS
+ to->f_flag = from->f_flags;
+#else
+ to->f_flag = 0;
+#endif
+ to->f_namemax = MNAMELEN;
+}
+
+# ifndef HAVE_STATVFS
+int statvfs(const char *path, struct statvfs *buf)
+{
+# ifdef HAVE_STATFS
+ struct statfs fs;
+
+ memset(&fs, 0, sizeof(fs));
+ if (statfs(path, &fs) == -1)
+ return -1;
+ copy_statfs_to_statvfs(buf, &fs);
+ return 0;
+# else
+ errno = ENOSYS;
+ return -1;
+# endif
+}
+# endif
+
+# ifndef HAVE_FSTATVFS
+int fstatvfs(int fd, struct statvfs *buf)
+{
+# ifdef HAVE_FSTATFS
+ struct statfs fs;
+
+ memset(&fs, 0, sizeof(fs));
+ if (fstatfs(fd, &fs) == -1)
+ return -1;
+ copy_statfs_to_statvfs(buf, &fs);
+ return 0;
+# else
+ errno = ENOSYS;
+ return -1;
+# endif
+}
+# endif
+
+#endif