1 // Copyright 2012-2015 The Rust Project Developers. See the COPYRIGHT 2 // file at the top-level directory of this distribution and at 3 // http://rust-lang.org/COPYRIGHT. 4 // 5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or 6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license 7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your 8 // option. This file may not be copied, modified, or distributed 9 // except according to those terms. 10 11 //! Crate docs 12 13 #![allow(bad_style, overflowing_literals, improper_ctypes)] 14 #![crate_type = "rlib"] 15 #![crate_name = "libc"] 16 #![cfg_attr(dox, feature(no_core, lang_items))] 17 #![cfg_attr(dox, no_core)] 18 #![doc(html_logo_url = "https://www.rust-lang.org/logos/rust-logo-128x128-blk-v2.png", 19 html_favicon_url = "https://doc.rust-lang.org/favicon.ico")] 20 21 #![cfg_attr(all(target_os = "linux", target_arch = "x86_64"), doc( 22 html_root_url = "https://doc.rust-lang.org/libc/x86_64-unknown-linux-gnu" 23 ))] 24 #![cfg_attr(all(target_os = "linux", target_arch = "x86"), doc( 25 html_root_url = "https://doc.rust-lang.org/libc/i686-unknown-linux-gnu" 26 ))] 27 #![cfg_attr(all(target_os = "linux", target_arch = "arm"), doc( 28 html_root_url = "https://doc.rust-lang.org/libc/arm-unknown-linux-gnueabihf" 29 ))] 30 #![cfg_attr(all(target_os = "linux", target_arch = "mips"), doc( 31 html_root_url = "https://doc.rust-lang.org/libc/mips-unknown-linux-gnu" 32 ))] 33 #![cfg_attr(all(target_os = "linux", target_arch = "aarch64"), doc( 34 html_root_url = "https://doc.rust-lang.org/libc/aarch64-unknown-linux-gnu" 35 ))] 36 #![cfg_attr(all(target_os = "linux", target_env = "musl"), doc( 37 html_root_url = "https://doc.rust-lang.org/libc/x86_64-unknown-linux-musl" 38 ))] 39 #![cfg_attr(all(target_os = "macos", target_arch = "x86_64"), doc( 40 html_root_url = "https://doc.rust-lang.org/libc/x86_64-apple-darwin" 41 ))] 42 #![cfg_attr(all(target_os = "macos", target_arch = "x86"), doc( 43 html_root_url = "https://doc.rust-lang.org/libc/i686-apple-darwin" 44 ))] 45 #![cfg_attr(all(windows, target_arch = "x86_64", target_env = "gnu"), doc( 46 html_root_url = "https://doc.rust-lang.org/libc/x86_64-pc-windows-gnu" 47 ))] 48 #![cfg_attr(all(windows, target_arch = "x86", target_env = "gnu"), doc( 49 html_root_url = "https://doc.rust-lang.org/libc/i686-pc-windows-gnu" 50 ))] 51 #![cfg_attr(all(windows, target_arch = "x86_64", target_env = "msvc"), doc( 52 html_root_url = "https://doc.rust-lang.org/libc/x86_64-pc-windows-msvc" 53 ))] 54 #![cfg_attr(all(windows, target_arch = "x86", target_env = "msvc"), doc( 55 html_root_url = "https://doc.rust-lang.org/libc/i686-pc-windows-msvc" 56 ))] 57 #![cfg_attr(target_os = "android", doc( 58 html_root_url = "https://doc.rust-lang.org/libc/arm-linux-androideabi" 59 ))] 60 #![cfg_attr(target_os = "freebsd", doc( 61 html_root_url = "https://doc.rust-lang.org/libc/x86_64-unknown-freebsd" 62 ))] 63 #![cfg_attr(target_os = "openbsd", doc( 64 html_root_url = "https://doc.rust-lang.org/libc/x86_64-unknown-openbsd" 65 ))] 66 #![cfg_attr(target_os = "bitrig", doc( 67 html_root_url = "https://doc.rust-lang.org/libc/x86_64-unknown-bitrig" 68 ))] 69 #![cfg_attr(target_os = "netbsd", doc( 70 html_root_url = "https://doc.rust-lang.org/libc/x86_64-unknown-netbsd" 71 ))] 72 #![cfg_attr(target_os = "dragonfly", doc( 73 html_root_url = "https://doc.rust-lang.org/libc/x86_64-unknown-dragonfly" 74 ))] 75 76 // Attributes needed when building as part of the standard library 77 #![cfg_attr(stdbuild, feature(no_std, core, core_slice_ext, staged_api, custom_attribute, cfg_target_vendor))] 78 #![cfg_attr(stdbuild, no_std)] 79 #![cfg_attr(stdbuild, staged_api)] 80 #![cfg_attr(stdbuild, allow(warnings))] 81 #![cfg_attr(stdbuild, unstable(feature = "libc", 82 reason = "use `libc` from crates.io", 83 issue = "27783"))] 84 85 #![cfg_attr(not(feature = "use_std"), no_std)] 86 87 #[cfg(all(not(stdbuild), not(dox), feature = "use_std"))] 88 extern crate std as core; 89 90 #[macro_use] mod macros; 91 mod dox; 92 93 // Use repr(u8) as LLVM expects `void*` to be the same as `i8*` to help enable 94 // more optimization opportunities around it recognizing things like 95 // malloc/free. 96 #[repr(u8)] 97 pub enum c_void { 98 // Two dummy variants so the #[repr] attribute can be used. 99 #[doc(hidden)] 100 __variant1, 101 #[doc(hidden)] 102 __variant2, 103 } 104 105 pub type int8_t = i8; 106 pub type int16_t = i16; 107 pub type int32_t = i32; 108 pub type int64_t = i64; 109 pub type uint8_t = u8; 110 pub type uint16_t = u16; 111 pub type uint32_t = u32; 112 pub type uint64_t = u64; 113 114 pub type c_schar = i8; 115 pub type c_uchar = u8; 116 pub type c_short = i16; 117 pub type c_ushort = u16; 118 pub type c_int = i32; 119 pub type c_uint = u32; 120 pub type c_float = f32; 121 pub type c_double = f64; 122 pub type c_longlong = i64; 123 pub type c_ulonglong = u64; 124 pub type intmax_t = i64; 125 pub type uintmax_t = u64; 126 127 pub type size_t = usize; 128 pub type ptrdiff_t = isize; 129 pub type intptr_t = isize; 130 pub type uintptr_t = usize; 131 pub type ssize_t = isize; 132 133 pub enum FILE {} 134 pub enum fpos_t {} // TODO: fill this out with a struct 135 136 extern { 137 pub fn isalnum(c: c_int) -> c_int; 138 pub fn isalpha(c: c_int) -> c_int; 139 pub fn iscntrl(c: c_int) -> c_int; 140 pub fn isdigit(c: c_int) -> c_int; 141 pub fn isgraph(c: c_int) -> c_int; 142 pub fn islower(c: c_int) -> c_int; 143 pub fn isprint(c: c_int) -> c_int; 144 pub fn ispunct(c: c_int) -> c_int; 145 pub fn isspace(c: c_int) -> c_int; 146 pub fn isupper(c: c_int) -> c_int; 147 pub fn isxdigit(c: c_int) -> c_int; 148 pub fn tolower(c: c_int) -> c_int; 149 pub fn toupper(c: c_int) -> c_int; 150 151 #[cfg_attr(all(target_os = "macos", target_arch = "x86"), 152 link_name = "fopen$UNIX2003")] 153 pub fn fopen(filename: *const c_char, 154 mode: *const c_char) -> *mut FILE; 155 #[cfg_attr(all(target_os = "macos", target_arch = "x86"), 156 link_name = "freopen$UNIX2003")] 157 pub fn freopen(filename: *const c_char, mode: *const c_char, 158 file: *mut FILE) -> *mut FILE; 159 pub fn fflush(file: *mut FILE) -> c_int; 160 pub fn fclose(file: *mut FILE) -> c_int; 161 pub fn remove(filename: *const c_char) -> c_int; 162 pub fn rename(oldname: *const c_char, newname: *const c_char) -> c_int; 163 pub fn tmpfile() -> *mut FILE; 164 pub fn setvbuf(stream: *mut FILE, 165 buffer: *mut c_char, 166 mode: c_int, 167 size: size_t) -> c_int; 168 pub fn setbuf(stream: *mut FILE, buf: *mut c_char); 169 pub fn fgetc(stream: *mut FILE) -> c_int; 170 pub fn fgets(buf: *mut c_char, n: c_int, stream: *mut FILE) -> *mut c_char; 171 pub fn fputc(c: c_int, stream: *mut FILE) -> c_int; 172 #[cfg_attr(all(target_os = "macos", target_arch = "x86"), 173 link_name = "fputs$UNIX2003")] 174 pub fn fputs(s: *const c_char, stream: *mut FILE)-> c_int; 175 pub fn puts(s: *const c_char) -> c_int; 176 pub fn ungetc(c: c_int, stream: *mut FILE) -> c_int; 177 pub fn fread(ptr: *mut c_void, 178 size: size_t, 179 nobj: size_t, 180 stream: *mut FILE) 181 -> size_t; 182 #[cfg_attr(all(target_os = "macos", target_arch = "x86"), 183 link_name = "fwrite$UNIX2003")] 184 pub fn fwrite(ptr: *const c_void, 185 size: size_t, 186 nobj: size_t, 187 stream: *mut FILE) 188 -> size_t; 189 pub fn fseek(stream: *mut FILE, offset: c_long, whence: c_int) -> c_int; 190 pub fn ftell(stream: *mut FILE) -> c_long; 191 pub fn rewind(stream: *mut FILE); 192 #[cfg_attr(target_os = "netbsd", link_name = "__fgetpos50")] 193 pub fn fgetpos(stream: *mut FILE, ptr: *mut fpos_t) -> c_int; 194 #[cfg_attr(target_os = "netbsd", link_name = "__fsetpos50")] 195 pub fn fsetpos(stream: *mut FILE, ptr: *const fpos_t) -> c_int; 196 pub fn feof(stream: *mut FILE) -> c_int; 197 pub fn ferror(stream: *mut FILE) -> c_int; 198 pub fn perror(s: *const c_char); 199 pub fn atoi(s: *const c_char) -> c_int; 200 #[cfg_attr(all(target_os = "macos", target_arch = "x86"), 201 link_name = "strtod$UNIX2003")] 202 pub fn strtod(s: *const c_char, endp: *mut *mut c_char) -> c_double; 203 pub fn strtol(s: *const c_char, 204 endp: *mut *mut c_char, base: c_int) -> c_long; 205 pub fn strtoul(s: *const c_char, endp: *mut *mut c_char, 206 base: c_int) -> c_ulong; 207 pub fn calloc(nobj: size_t, size: size_t) -> *mut c_void; 208 pub fn malloc(size: size_t) -> *mut c_void; 209 pub fn realloc(p: *mut c_void, size: size_t) -> *mut c_void; 210 pub fn free(p: *mut c_void); 211 pub fn abort() -> !; 212 pub fn exit(status: c_int) -> !; 213 pub fn _exit(status: c_int) -> !; 214 pub fn atexit(cb: extern fn()) -> c_int; 215 #[cfg_attr(all(target_os = "macos", target_arch = "x86"), 216 link_name = "system$UNIX2003")] 217 pub fn system(s: *const c_char) -> c_int; 218 pub fn getenv(s: *const c_char) -> *mut c_char; 219 220 pub fn strcpy(dst: *mut c_char, src: *const c_char) -> *mut c_char; 221 pub fn strncpy(dst: *mut c_char, src: *const c_char, n: size_t) 222 -> *mut c_char; 223 pub fn strcat(s: *mut c_char, ct: *const c_char) -> *mut c_char; 224 pub fn strncat(s: *mut c_char, ct: *const c_char, n: size_t) -> *mut c_char; 225 pub fn strcmp(cs: *const c_char, ct: *const c_char) -> c_int; 226 pub fn strncmp(cs: *const c_char, ct: *const c_char, n: size_t) -> c_int; 227 pub fn strcoll(cs: *const c_char, ct: *const c_char) -> c_int; 228 pub fn strchr(cs: *const c_char, c: c_int) -> *mut c_char; 229 pub fn strrchr(cs: *const c_char, c: c_int) -> *mut c_char; 230 pub fn strspn(cs: *const c_char, ct: *const c_char) -> size_t; 231 pub fn strcspn(cs: *const c_char, ct: *const c_char) -> size_t; 232 pub fn strdup(cs: *const c_char) -> *mut c_char; 233 pub fn strpbrk(cs: *const c_char, ct: *const c_char) -> *mut c_char; 234 pub fn strstr(cs: *const c_char, ct: *const c_char) -> *mut c_char; 235 pub fn strlen(cs: *const c_char) -> size_t; 236 pub fn strnlen(cs: *const c_char, maxlen: size_t) -> size_t; 237 #[cfg_attr(all(target_os = "macos", target_arch = "x86"), 238 link_name = "strerror$UNIX2003")] 239 pub fn strerror(n: c_int) -> *mut c_char; 240 pub fn strtok(s: *mut c_char, t: *const c_char) -> *mut c_char; 241 pub fn strxfrm(s: *mut c_char, ct: *const c_char, n: size_t) -> size_t; 242 pub fn wcslen(buf: *const wchar_t) -> size_t; 243 244 pub fn memchr(cx: *const c_void, c: c_int, n: size_t) -> *mut c_void; 245 pub fn memcmp(cx: *const c_void, ct: *const c_void, n: size_t) -> c_int; 246 pub fn memcpy(dest: *mut c_void, src: *const c_void, n: size_t) -> *mut c_void; 247 pub fn memmove(dest: *mut c_void, src: *const c_void, n: size_t) -> *mut c_void; 248 } 249 250 // These are all inline functions on android, so they end up just being entirely 251 // missing on that platform. 252 #[cfg(not(target_os = "android"))] 253 extern { 254 pub fn abs(i: c_int) -> c_int; 255 pub fn atof(s: *const c_char) -> c_double; 256 pub fn labs(i: c_long) -> c_long; 257 pub fn rand() -> c_int; 258 pub fn srand(seed: c_uint); 259 } 260 261 cfg_if! { 262 if #[cfg(windows)] { 263 mod windows; 264 pub use windows::*; 265 } else if #[cfg(unix)] { 266 mod unix; 267 pub use unix::*; 268 } else { 269 // Unknown target_family 270 } 271 } 272
