1 files changed, 63 insertions, 0 deletions
diff --git a/libc-top-half/musl/src/stat/statvfs.c b/libc-top-half/musl/src/stat/statvfs.c
new file mode 100644
index 0000000..f65d1b5
--- /dev/null
+++ b/libc-top-half/musl/src/stat/statvfs.c
@@ -0,0 +1,63 @@
+#include <sys/statvfs.h>
+#include <sys/statfs.h>
+#include "syscall.h"
+
+static int __statfs(const char *path, struct statfs *buf)
+{
+	*buf = (struct statfs){0};
+#ifdef SYS_statfs64
+	return syscall(SYS_statfs64, path, sizeof *buf, buf);
+#else
+	return syscall(SYS_statfs, path, buf);
+#endif
+}
+
+static int __fstatfs(int fd, struct statfs *buf)
+{
+	*buf = (struct statfs){0};
+#ifdef SYS_fstatfs64
+	return syscall(SYS_fstatfs64, fd, sizeof *buf, buf);
+#else
+	return syscall(SYS_fstatfs, fd, buf);
+#endif
+}
+
+weak_alias(__statfs, statfs);
+weak_alias(__fstatfs, fstatfs);
+
+static void fixup(struct statvfs *out, const struct statfs *in)
+{
+	*out = (struct statvfs){0};
+	out->f_bsize = in->f_bsize;
+	out->f_frsize = in->f_frsize ? in->f_frsize : in->f_bsize;
+	out->f_blocks = in->f_blocks;
+	out->f_bfree = in->f_bfree;
+	out->f_bavail = in->f_bavail;
+	out->f_files = in->f_files;
+	out->f_ffree = in->f_ffree;
+	out->f_favail = in->f_ffree;
+	out->f_fsid = in->f_fsid.__val[0];
+	out->f_flag = in->f_flags;
+	out->f_namemax = in->f_namelen;
+}
+
+int statvfs(const char *restrict path, struct statvfs *restrict buf)
+{
+	struct statfs kbuf;
+	if (__statfs(path, &kbuf)<0) return -1;
+	fixup(buf, &kbuf);
+	return 0;
+}
+
+int fstatvfs(int fd, struct statvfs *buf)
+{
+	struct statfs kbuf;
+	if (__fstatfs(fd, &kbuf)<0) return -1;
+	fixup(buf, &kbuf);
+	return 0;
+}
+
+weak_alias(statvfs, statvfs64);
+weak_alias(statfs, statfs64);
+weak_alias(fstatvfs, fstatvfs64);
+weak_alias(fstatfs, fstatfs64);