diff --git a/libc-test/build.rs b/libc-test/build.rs
index f1b1bd4..508a3c8 100644
--- a/libc-test/build.rs
+++ b/libc-test/build.rs
@@ -86,6 +86,7 @@
     } else if !windows {
         cfg.header("glob.h");
         cfg.header("ifaddrs.h");
+        cfg.header("sys/statvfs.h");
 
         if !musl {
             cfg.header("execinfo.h");
diff --git a/src/unix/bsd/apple/mod.rs b/src/unix/bsd/apple/mod.rs
index ad8fcf2..c809866 100644
--- a/src/unix/bsd/apple/mod.rs
+++ b/src/unix/bsd/apple/mod.rs
@@ -147,6 +147,20 @@
         pub ra_offset: ::off_t,
         pub ra_count: ::c_int,
     }
+
+    pub struct statvfs {
+        pub f_bsize: ::c_ulong,
+        pub f_frsize: ::c_ulong,
+        pub f_blocks: ::fsblkcnt_t,
+        pub f_bfree: ::fsblkcnt_t,
+        pub f_bavail: ::fsblkcnt_t,
+        pub f_files: ::fsfilcnt_t,
+        pub f_ffree: ::fsfilcnt_t,
+        pub f_favail: ::fsfilcnt_t,
+        pub f_fsid: ::c_ulong,
+        pub f_flag: ::c_ulong,
+        pub f_namemax: ::c_ulong,
+    }
 }
 
 pub const EXIT_FAILURE: ::c_int = 1;
diff --git a/src/unix/bsd/freebsdlike/mod.rs b/src/unix/bsd/freebsdlike/mod.rs
index 376fce6..5f10920 100644
--- a/src/unix/bsd/freebsdlike/mod.rs
+++ b/src/unix/bsd/freebsdlike/mod.rs
@@ -85,6 +85,20 @@
         pub ss_size: ::size_t,
         pub ss_flags: ::c_int,
     }
+
+    pub struct statvfs {
+        pub f_bavail: ::fsblkcnt_t,
+        pub f_bfree: ::fsblkcnt_t,
+        pub f_blocks: ::fsblkcnt_t,
+        pub f_favail: ::fsfilcnt_t,
+        pub f_ffree: ::fsfilcnt_t,
+        pub f_files: ::fsfilcnt_t,
+        pub f_bsize: ::c_ulong,
+        pub f_flag: ::c_ulong,
+        pub f_frsize: ::c_ulong,
+        pub f_fsid: ::c_ulong,
+        pub f_namemax: ::c_ulong,
+    }
 }
 
 pub const EXIT_FAILURE: ::c_int = 1;
diff --git a/src/unix/bsd/mod.rs b/src/unix/bsd/mod.rs
index 76f1ee7..91d2032 100644
--- a/src/unix/bsd/mod.rs
+++ b/src/unix/bsd/mod.rs
@@ -6,6 +6,8 @@
 pub type socklen_t = u32;
 pub type sa_family_t = u8;
 pub type pthread_t = ::uintptr_t;
+pub type fsblkcnt_t = ::c_uint;
+pub type fsfilcnt_t = ::c_uint;
 
 s! {
     pub struct sockaddr {
@@ -102,6 +104,9 @@
 
 pub const FD_SETSIZE: usize = 1024;
 
+pub const ST_RDONLY: ::c_ulong = 1;
+pub const ST_NOSUID: ::c_ulong = 2;
+
 f! {
     pub fn FD_CLR(fd: ::c_int, set: *mut fd_set) -> () {
         let fd = fd as usize;
diff --git a/src/unix/bsd/openbsdlike/mod.rs b/src/unix/bsd/openbsdlike/mod.rs
index ea4b99c..1582860 100644
--- a/src/unix/bsd/openbsdlike/mod.rs
+++ b/src/unix/bsd/openbsdlike/mod.rs
@@ -92,6 +92,20 @@
         pub st_birthtime: ::time_t,
         pub st_birthtime_nsec: ::c_long,
     }
+
+    pub struct statvfs {
+        pub f_bsize: ::c_ulong,
+        pub f_frsize: ::c_ulong,
+        pub f_blocks: ::fsblkcnt_t,
+        pub f_bfree: ::fsblkcnt_t,
+        pub f_bavail: ::fsblkcnt_t,
+        pub f_files: ::fsfilcnt_t,
+        pub f_ffree: ::fsfilcnt_t,
+        pub f_favail: ::fsfilcnt_t,
+        pub f_fsid: ::c_ulong,
+        pub f_flag: ::c_ulong,
+        pub f_namemax: ::c_ulong,
+    }
 }
 
 pub const EXIT_FAILURE : ::c_int = 1;
diff --git a/src/unix/mod.rs b/src/unix/mod.rs
index f1e4ffa..488313f 100644
--- a/src/unix/mod.rs
+++ b/src/unix/mod.rs
@@ -558,6 +558,8 @@
                   whence: ::c_int) -> ::c_int;
     pub fn ftello(stream: *mut ::FILE) -> ::off_t;
     pub fn timegm(tm: *mut ::tm) -> time_t;
+    pub fn statvfs(path: *const c_char, buf: *mut statvfs) -> ::c_int;
+    pub fn fstatvfs(fd: ::c_int, buf: *mut statvfs) -> ::c_int;
 }
 
 cfg_if! {
diff --git a/src/unix/notbsd/linux/mod.rs b/src/unix/notbsd/linux/mod.rs
index 478f5de..e48be8b 100644
--- a/src/unix/notbsd/linux/mod.rs
+++ b/src/unix/notbsd/linux/mod.rs
@@ -9,6 +9,8 @@
 pub type off64_t = i64;
 pub type blkcnt64_t = i64;
 pub type rlim64_t = u64;
+pub type fsblkcnt_t = ::c_ulong;
+pub type fsfilcnt_t = ::c_ulong;
 
 pub enum fpos64_t {} // TODO: fill this out with a struct
 
@@ -99,6 +101,23 @@
         pub pw_dir: *mut ::c_char,
         pub pw_shell: *mut ::c_char,
     }
+
+    pub struct statvfs {
+        pub f_bsize: ::c_ulong,
+        pub f_frsize: ::c_ulong,
+        pub f_blocks: ::fsblkcnt_t,
+        pub f_bfree: ::fsblkcnt_t,
+        pub f_bavail: ::fsblkcnt_t,
+        pub f_files: ::fsfilcnt_t,
+        pub f_ffree: ::fsfilcnt_t,
+        pub f_favail: ::fsfilcnt_t,
+        pub f_fsid: ::c_ulong,
+        #[cfg(target_pointer_width = "32")]
+        pub __f_unused: ::c_int,
+        pub f_flag: ::c_ulong,
+        pub f_namemax: ::c_ulong,
+        __f_spare: [::c_int; 6],
+    }
 }
 
 pub const FILENAME_MAX: ::c_uint = 4096;
@@ -218,6 +237,18 @@
 pub const F_TLOCK: ::c_int = 2;
 pub const F_ULOCK: ::c_int = 0;
 
+pub const ST_RDONLY: ::c_ulong = 1;
+pub const ST_NOSUID: ::c_ulong = 2;
+pub const ST_NODEV: ::c_ulong = 4;
+pub const ST_NOEXEC: ::c_ulong = 8;
+pub const ST_SYNCHRONOUS: ::c_ulong = 16;
+pub const ST_MANDLOCK: ::c_ulong = 64;
+pub const ST_WRITE: ::c_ulong = 128;
+pub const ST_APPEND: ::c_ulong = 256;
+pub const ST_IMMUTABLE: ::c_ulong = 512;
+pub const ST_NOATIME: ::c_ulong = 1024;
+pub const ST_NODIRATIME: ::c_ulong = 2048;
+
 #[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
 pub const MAP_32BIT: ::c_int = 0x0040;
 
diff --git a/src/unix/notbsd/linux/notmusl.rs b/src/unix/notbsd/linux/notmusl.rs
index 65dea9d..5f23d80 100644
--- a/src/unix/notbsd/linux/notmusl.rs
+++ b/src/unix/notbsd/linux/notmusl.rs
@@ -21,6 +21,7 @@
 pub const RUSAGE_THREAD: ::c_int = 1;
 pub const O_ACCMODE: ::c_int = 3;
 pub const RUSAGE_CHILDREN: ::c_int = -1;
+pub const ST_RELATIME: ::c_ulong = 4096;
 
 extern {
     pub fn sysctl(name: *mut ::c_int,