Update libc crate to 0.2.45

This change updates the libc crate to version 0.2.45.

Import subrepo libc/:libc at f5636fc618f8e16968b3178196d73c94ad9f7b05

1 files changed, 235 insertions, 11 deletions

diff --git a/libc/src/unix/mod.rs b/libc/src/unix/mod.rs
index 57067e0..370d7f4 100644
--- a/libc/src/unix/mod.rs
+++ b/libc/src/unix/mod.rs
@@ -5,6 +5,34 @@
 
 use dox::Option;
 
+pub type int8_t = i8;
+pub type int16_t = i16;
+pub type int32_t = i32;
+pub type int64_t = i64;
+pub type uint8_t = u8;
+pub type uint16_t = u16;
+pub type uint32_t = u32;
+pub type uint64_t = u64;
+
+pub type c_schar = i8;
+pub type c_uchar = u8;
+pub type c_short = i16;
+pub type c_ushort = u16;
+pub type c_int = i32;
+pub type c_uint = u32;
+pub type c_float = f32;
+pub type c_double = f64;
+pub type c_longlong = i64;
+pub type c_ulonglong = u64;
+pub type intmax_t = i64;
+pub type uintmax_t = u64;
+
+pub type size_t = usize;
+pub type ptrdiff_t = isize;
+pub type intptr_t = isize;
+pub type uintptr_t = usize;
+pub type ssize_t = isize;
+
 pub type pid_t = i32;
 pub type uid_t = u32;
 pub type gid_t = u32;
@@ -104,8 +132,10 @@ s! {
         pub s_addr: in_addr_t,
     }
 
+    #[cfg_attr(feature = "align", repr(align(4)))]
     pub struct in6_addr {
         pub s6_addr: [u8; 16],
+        #[cfg(not(feature = "align"))]
         __align: [u32; 0],
     }
 
@@ -186,10 +216,14 @@ s! {
     }
 }
 
+pub const INT_MIN: c_int = -2147483648;
+pub const INT_MAX: c_int = 2147483647;
+
 pub const SIG_DFL: sighandler_t = 0 as sighandler_t;
 pub const SIG_IGN: sighandler_t = 1 as sighandler_t;
 pub const SIG_ERR: sighandler_t = !0 as sighandler_t;
 
+pub const DT_UNKNOWN: u8 = 0;
 pub const DT_FIFO: u8 = 1;
 pub const DT_CHR: u8 = 2;
 pub const DT_DIR: u8 = 4;
@@ -267,22 +301,35 @@ pub const INADDR_ANY: in_addr_t = 0;
 pub const INADDR_BROADCAST: in_addr_t = 4294967295;
 pub const INADDR_NONE: in_addr_t = 4294967295;
 
+pub const ARPOP_REQUEST: u16 = 1;
+pub const ARPOP_REPLY: u16 = 2;
+
+pub const ATF_COM: ::c_int = 0x02;
+pub const ATF_PERM: ::c_int = 0x04;
+pub const ATF_PUBL: ::c_int = 0x08;
+pub const ATF_USETRAILERS: ::c_int = 0x10;
+
 cfg_if! {
-    if #[cfg(dox)] {
+    if #[cfg(cross_platform_docs)] {
         // on dox builds don't pull in anything
     } else if #[cfg(target_os = "l4re")] {
         // required libraries for L4Re are linked externally, ATM
     } else if #[cfg(feature = "use_std")] {
         // cargo build, don't pull in anything extra as the libstd dep
         // already pulls in all libs.
-    } else if #[cfg(any(all(target_env = "musl", not(target_arch = "mips"))))] {
-        #[link(name = "c", kind = "static", cfg(target_feature = "crt-static"))]
-        #[link(name = "c", cfg(not(target_feature = "crt-static")))]
+    } else if #[cfg(target_env = "musl")] {
+        #[cfg_attr(feature = "rustc-dep-of-std",
+                   link(name = "c", kind = "static",
+                        cfg(target_feature = "crt-static")))]
+        #[cfg_attr(feature = "rustc-dep-of-std",
+                   link(name = "c", cfg(not(target_feature = "crt-static"))))]
         extern {}
     } else if #[cfg(target_os = "emscripten")] {
         #[link(name = "c")]
         extern {}
-    } else if #[cfg(all(target_os = "netbsd", target_vendor = "rumprun"))] {
+    } else if #[cfg(all(target_os = "netbsd",
+                        feature = "rustc-dep-of-std",
+                        target_vendor = "rumprun"))] {
         // Since we don't use -nodefaultlibs on Rumprun, libc is always pulled
         // in automatically by the linker. We avoid passing it explicitly, as it
         // causes some versions of binutils to crash with an assertion failure.
@@ -300,14 +347,15 @@ cfg_if! {
         #[link(name = "root")]
         #[link(name = "network")]
         extern {}
-    } else if #[cfg(target_os = "fuchsia")] {
-        #[link(name = "c")]
-        #[link(name = "fdio")]
-        extern {}
     } else if #[cfg(target_env = "newlib")] {
         #[link(name = "c")]
         #[link(name = "m")]
         extern {}
+    } else if #[cfg(target_os = "hermit")] {
+        // no_default_libraries is set to false for HermitCore, so only a link
+        // to "pthread" needs to be added.
+        #[link(name = "pthread")]
+        extern {}
     } else {
         #[link(name = "c")]
         #[link(name = "m")]
@@ -317,6 +365,138 @@ cfg_if! {
     }
 }
 
+pub enum FILE {}
+pub enum fpos_t {} // TODO: fill this out with a struct
+
+extern {
+    pub fn isalnum(c: c_int) -> c_int;
+    pub fn isalpha(c: c_int) -> c_int;
+    pub fn iscntrl(c: c_int) -> c_int;
+    pub fn isdigit(c: c_int) -> c_int;
+    pub fn isgraph(c: c_int) -> c_int;
+    pub fn islower(c: c_int) -> c_int;
+    pub fn isprint(c: c_int) -> c_int;
+    pub fn ispunct(c: c_int) -> c_int;
+    pub fn isspace(c: c_int) -> c_int;
+    pub fn isupper(c: c_int) -> c_int;
+    pub fn isxdigit(c: c_int) -> c_int;
+    pub fn tolower(c: c_int) -> c_int;
+    pub fn toupper(c: c_int) -> c_int;
+    #[cfg_attr(
+        all(target_os = "macos", target_arch = "x86"),
+        link_name = "fopen$UNIX2003"
+    )]
+    pub fn fopen(filename: *const c_char, mode: *const c_char) -> *mut FILE;
+    #[cfg_attr(
+        all(target_os = "macos", target_arch = "x86"),
+        link_name = "freopen$UNIX2003"
+    )]
+    pub fn freopen(filename: *const c_char, mode: *const c_char,
+                   file: *mut FILE) -> *mut FILE;
+    pub fn fflush(file: *mut FILE) -> c_int;
+    pub fn fclose(file: *mut FILE) -> c_int;
+    pub fn remove(filename: *const c_char) -> c_int;
+    pub fn rename(oldname: *const c_char, newname: *const c_char) -> c_int;
+    pub fn tmpfile() -> *mut FILE;
+    pub fn setvbuf(stream: *mut FILE, buffer: *mut c_char, mode: c_int,
+                   size: size_t) -> c_int;
+    pub fn setbuf(stream: *mut FILE, buf: *mut c_char);
+    pub fn getchar() -> c_int;
+    pub fn putchar(c: c_int) -> c_int;
+    pub fn fgetc(stream: *mut FILE) -> c_int;
+    pub fn fgets(buf: *mut c_char, n: c_int, stream: *mut FILE) -> *mut c_char;
+    pub fn fputc(c: c_int, stream: *mut FILE) -> c_int;
+    #[cfg_attr(
+        all(target_os = "macos", target_arch = "x86"),
+        link_name = "fputs$UNIX2003"
+    )]
+    pub fn fputs(s: *const c_char, stream: *mut FILE) -> c_int;
+    pub fn puts(s: *const c_char) -> c_int;
+    pub fn ungetc(c: c_int, stream: *mut FILE) -> c_int;
+    pub fn fread(ptr: *mut c_void, size: size_t, nobj: size_t,
+                 stream: *mut FILE) -> size_t;
+    #[cfg_attr(
+        all(target_os = "macos", target_arch = "x86"),
+        link_name = "fwrite$UNIX2003"
+    )]
+    pub fn fwrite(ptr: *const c_void, size: size_t, nobj: size_t,
+                  stream: *mut FILE) -> size_t;
+    pub fn fseek(stream: *mut FILE, offset: c_long, whence: c_int) -> c_int;
+    pub fn ftell(stream: *mut FILE) -> c_long;
+    pub fn rewind(stream: *mut FILE);
+    #[cfg_attr(target_os = "netbsd", link_name = "__fgetpos50")]
+    pub fn fgetpos(stream: *mut FILE, ptr: *mut fpos_t) -> c_int;
+    #[cfg_attr(target_os = "netbsd", link_name = "__fsetpos50")]
+    pub fn fsetpos(stream: *mut FILE, ptr: *const fpos_t) -> c_int;
+    pub fn feof(stream: *mut FILE) -> c_int;
+    pub fn ferror(stream: *mut FILE) -> c_int;
+    pub fn perror(s: *const c_char);
+    pub fn atoi(s: *const c_char) -> c_int;
+    #[cfg_attr(
+        all(target_os = "macos", target_arch = "x86"),
+        link_name = "strtod$UNIX2003"
+    )]
+    pub fn strtod(s: *const c_char, endp: *mut *mut c_char) -> c_double;
+    pub fn strtol(s: *const c_char, endp: *mut *mut c_char,
+                  base: c_int) -> c_long;
+    pub fn strtoul(s: *const c_char, endp: *mut *mut c_char,
+                   base: c_int) -> c_ulong;
+    pub fn calloc(nobj: size_t, size: size_t) -> *mut c_void;
+    pub fn malloc(size: size_t) -> *mut c_void;
+    pub fn realloc(p: *mut c_void, size: size_t) -> *mut c_void;
+    pub fn free(p: *mut c_void);
+    pub fn abort() -> !;
+    pub fn exit(status: c_int) -> !;
+    pub fn _exit(status: c_int) -> !;
+    pub fn atexit(cb: extern fn()) -> c_int;
+    #[cfg_attr(
+        all(target_os = "macos", target_arch = "x86"),
+        link_name = "system$UNIX2003"
+    )]
+    pub fn system(s: *const c_char) -> c_int;
+    pub fn getenv(s: *const c_char) -> *mut c_char;
+
+    pub fn strcpy(dst: *mut c_char, src: *const c_char) -> *mut c_char;
+    pub fn strncpy(dst: *mut c_char, src: *const c_char,
+                   n: size_t) -> *mut c_char;
+    pub fn strcat(s: *mut c_char, ct: *const c_char) -> *mut c_char;
+    pub fn strncat(s: *mut c_char, ct: *const c_char,
+                   n: size_t) -> *mut c_char;
+    pub fn strcmp(cs: *const c_char, ct: *const c_char) -> c_int;
+    pub fn strncmp(cs: *const c_char, ct: *const c_char, n: size_t) -> c_int;
+    pub fn strcoll(cs: *const c_char, ct: *const c_char) -> c_int;
+    pub fn strchr(cs: *const c_char, c: c_int) -> *mut c_char;
+    pub fn strrchr(cs: *const c_char, c: c_int) -> *mut c_char;
+    pub fn strspn(cs: *const c_char, ct: *const c_char) -> size_t;
+    pub fn strcspn(cs: *const c_char, ct: *const c_char) -> size_t;
+    pub fn strdup(cs: *const c_char) -> *mut c_char;
+    pub fn strpbrk(cs: *const c_char, ct: *const c_char) -> *mut c_char;
+    pub fn strstr(cs: *const c_char, ct: *const c_char) -> *mut c_char;
+    pub fn strcasecmp(s1: *const c_char, s2: *const c_char) -> c_int;
+    pub fn strncasecmp(s1: *const c_char, s2: *const c_char,
+                       n: size_t) -> c_int;
+    pub fn strlen(cs: *const c_char) -> size_t;
+    pub fn strnlen(cs: *const c_char, maxlen: size_t) -> size_t;
+    #[cfg_attr(
+        all(target_os = "macos", target_arch = "x86"),
+        link_name = "strerror$UNIX2003"
+    )]
+    pub fn strerror(n: c_int) -> *mut c_char;
+    pub fn strtok(s: *mut c_char, t: *const c_char) -> *mut c_char;
+    pub fn strxfrm(s: *mut c_char, ct: *const c_char, n: size_t) -> size_t;
+    pub fn wcslen(buf: *const wchar_t) -> size_t;
+    pub fn wcstombs(dest: *mut c_char, src: *const wchar_t,
+                    n: size_t) -> ::size_t;
+
+    pub fn memchr(cx: *const c_void, c: c_int, n: size_t) -> *mut c_void;
+    pub fn memcmp(cx: *const c_void, ct: *const c_void, n: size_t) -> c_int;
+    pub fn memcpy(dest: *mut c_void, src: *const c_void,
+                  n: size_t) -> *mut c_void;
+    pub fn memmove(dest: *mut c_void, src: *const c_void,
+                   n: size_t) -> *mut c_void;
+    pub fn memset(dest: *mut c_void, c: c_int, n: size_t) -> *mut c_void;
+}
+
 extern {
     #[cfg_attr(target_os = "netbsd", link_name = "__getpwnam50")]
     pub fn getpwnam(name: *const ::c_char) -> *mut passwd;
@@ -379,12 +559,14 @@ extern {
 
     #[cfg_attr(target_os = "macos", link_name = "fstat$INODE64")]
     #[cfg_attr(target_os = "netbsd", link_name = "__fstat50")]
+    #[cfg_attr(target_os = "freebsd", link_name = "fstat@FBSD_1.0")]
     pub fn fstat(fildes: ::c_int, buf: *mut stat) -> ::c_int;
 
     pub fn mkdir(path: *const c_char, mode: mode_t) -> ::c_int;
 
     #[cfg_attr(target_os = "macos", link_name = "stat$INODE64")]
     #[cfg_attr(target_os = "netbsd", link_name = "__stat50")]
+    #[cfg_attr(target_os = "freebsd", link_name = "stat@FBSD_1.0")]
     pub fn stat(path: *const c_char, buf: *mut stat) -> ::c_int;
 
     pub fn pclose(stream: *mut ::FILE) -> ::c_int;
@@ -409,12 +591,21 @@ extern {
                link_name = "opendir$INODE64$UNIX2003")]
     #[cfg_attr(target_os = "netbsd", link_name = "__opendir30")]
     pub fn opendir(dirname: *const c_char) -> *mut ::DIR;
+
+    #[cfg_attr(all(target_os = "macos", target_arch = "x86_64"),
+               link_name = "fdopendir$INODE64")]
+    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
+               link_name = "fdopendir$INODE64$UNIX2003")]
+    pub fn fdopendir(fd: ::c_int) -> *mut ::DIR;
+
     #[cfg_attr(target_os = "macos", link_name = "readdir$INODE64")]
     #[cfg_attr(target_os = "netbsd", link_name = "__readdir30")]
+    #[cfg_attr(target_os = "freebsd", link_name = "readdir@FBSD_1.0")]
     pub fn readdir(dirp: *mut ::DIR) -> *mut ::dirent;
     #[cfg_attr(target_os = "macos", link_name = "readdir_r$INODE64")]
     #[cfg_attr(target_os = "netbsd", link_name = "__readdir_r30")]
     #[cfg_attr(target_os = "solaris", link_name = "__posix_readdir_r")]
+    #[cfg_attr(target_os = "freebsd", link_name = "readdir_r@FBSD_1.0")]
     pub fn readdir_r(dirp: *mut ::DIR, entry: *mut ::dirent,
                      result: *mut *mut ::dirent) -> ::c_int;
     #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
@@ -437,6 +628,7 @@ extern {
                     owner: ::uid_t, group: ::gid_t,
                     flags: ::c_int) -> ::c_int;
     #[cfg_attr(target_os = "macos", link_name = "fstatat$INODE64")]
+    #[cfg_attr(target_os = "freebsd", link_name = "fstatat@FBSD_1.1")]
     pub fn fstatat(dirfd: ::c_int, pathname: *const ::c_char,
                    buf: *mut stat, flags: ::c_int) -> ::c_int;
     pub fn linkat(olddirfd: ::c_int, oldpath: *const ::c_char,
@@ -519,6 +711,7 @@ extern {
                 -> ::ssize_t;
     pub fn rmdir(path: *const c_char) -> ::c_int;
     pub fn seteuid(uid: uid_t) -> ::c_int;
+    pub fn setegid(gid: gid_t) -> ::c_int;
     pub fn setgid(gid: gid_t) -> ::c_int;
     pub fn setpgid(pid: pid_t, pgid: pid_t) -> ::c_int;
     pub fn setsid() -> pid_t;
@@ -562,6 +755,9 @@ extern {
     #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
                    link_name = "kill$UNIX2003")]
     pub fn kill(pid: pid_t, sig: ::c_int) -> ::c_int;
+    #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
+               link_name = "killpg$UNIX2003")]
+    pub fn killpg(pgrp: pid_t, sig: ::c_int) -> ::c_int;
 
     pub fn mlock(addr: *const ::c_void, len: ::size_t) -> ::c_int;
     pub fn munlock(addr: *const ::c_void, len: ::size_t) -> ::c_int;
@@ -587,6 +783,7 @@ extern {
 
     #[cfg_attr(target_os = "macos", link_name = "lstat$INODE64")]
     #[cfg_attr(target_os = "netbsd", link_name = "__lstat50")]
+    #[cfg_attr(target_os = "freebsd", link_name = "lstat@FBSD_1.0")]
     pub fn lstat(path: *const c_char, buf: *mut stat) -> ::c_int;
 
     #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
@@ -605,6 +802,7 @@ extern {
     pub fn symlink(path1: *const c_char,
                    path2: *const c_char) -> ::c_int;
 
+    pub fn truncate(path: *const c_char, length: off_t) -> ::c_int;
     pub fn ftruncate(fd: ::c_int, length: off_t) -> ::c_int;
 
     pub fn signal(signum: ::c_int, handler: sighandler_t) -> sighandler_t;
@@ -771,6 +969,7 @@ extern {
     pub fn difftime(time1: time_t, time0: time_t) -> ::c_double;
 
     #[cfg_attr(target_os = "netbsd", link_name = "__mknod50")]
+    #[cfg_attr(target_os = "freebsd", link_name = "mknod@FBSD_1.0")]
     pub fn mknod(pathname: *const ::c_char, mode: ::mode_t,
                  dev: ::dev_t) -> ::c_int;
     pub fn uname(buf: *mut ::utsname) -> ::c_int;
@@ -899,6 +1098,7 @@ extern {
     pub fn openlog(ident: *const ::c_char, logopt: ::c_int, facility: ::c_int);
     pub fn closelog();
     pub fn setlogmask(maskpri: ::c_int) -> ::c_int;
+    #[cfg_attr(target_os = "macos", link_name = "syslog$DARWIN_EXTSN")]
     pub fn syslog(priority: ::c_int, message: *const ::c_char, ...);
     #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
                link_name = "nice$UNIX2003")]
@@ -908,6 +1108,10 @@ extern {
     pub fn posix_openpt(flags: ::c_int) -> ::c_int;
     pub fn ptsname(fd: ::c_int) -> *mut ::c_char;
     pub fn unlockpt(fd: ::c_int) -> ::c_int;
+
+    pub fn strcasestr(cs: *const c_char, ct: *const c_char) -> *mut c_char;
+    pub fn getline (lineptr: *mut *mut c_char, n: *mut size_t,
+        stream: *mut FILE) -> ssize_t;
 }
 
 cfg_if! {
@@ -919,8 +1123,7 @@ cfg_if! {
         pub use self::newlib::*;
     } else if #[cfg(any(target_os = "linux",
                         target_os = "android",
-                        target_os = "emscripten",
-                        target_os = "fuchsia"))] {
+                        target_os = "emscripten"))] {
         mod notbsd;
         pub use self::notbsd::*;
     } else if #[cfg(any(target_os = "macos",
@@ -938,7 +1141,28 @@ cfg_if! {
     } else if #[cfg(target_os = "haiku")] {
         mod haiku;
         pub use self::haiku::*;
+    } else if #[cfg(target_os = "hermit")] {
+        mod hermit;
+        pub use self::hermit::*;
     } else {
         // Unknown target_os
     }
 }
+
+cfg_if! {
+    if #[cfg(core_cvoid)] {
+        pub use core::ffi::c_void;
+    } else {
+        // Use repr(u8) as LLVM expects `void*` to be the same as `i8*` to help
+        // enable more optimization opportunities around it recognizing things
+        // like malloc/free.
+        #[repr(u8)]
+        pub enum c_void {
+            // Two dummy variants so the #[repr] attribute can be used.
+            #[doc(hidden)]
+            __variant1,
+            #[doc(hidden)]
+            __variant2,
+        }
+    }
+}