libc/windows/
mod.rs

1//! Windows CRT definitions
2
3use crate::prelude::*;
4
5pub type intmax_t = i64;
6pub type uintmax_t = u64;
7
8pub type size_t = usize;
9pub type ptrdiff_t = isize;
10pub type intptr_t = isize;
11pub type uintptr_t = usize;
12pub type ssize_t = isize;
13pub type sighandler_t = usize;
14
15pub type wchar_t = u16;
16
17pub type clock_t = i32;
18
19pub type errno_t = c_int;
20
21cfg_if! {
22    if #[cfg(all(target_arch = "x86", target_env = "gnu"))] {
23        pub type time_t = i32;
24    } else {
25        pub type time_t = i64;
26    }
27}
28
29pub type off_t = i32;
30pub type dev_t = u32;
31pub type ino_t = u16;
32#[derive(Debug)]
33pub enum timezone {}
34impl Copy for timezone {}
35impl Clone for timezone {
36    fn clone(&self) -> timezone {
37        *self
38    }
39}
40pub type time64_t = i64;
41
42pub type SOCKET = crate::uintptr_t;
43
44s! {
45    // note this is the struct called stat64 in Windows. Not stat, nor stati64.
46    pub struct stat {
47        pub st_dev: dev_t,
48        pub st_ino: ino_t,
49        pub st_mode: u16,
50        pub st_nlink: c_short,
51        pub st_uid: c_short,
52        pub st_gid: c_short,
53        pub st_rdev: dev_t,
54        pub st_size: i64,
55        pub st_atime: time64_t,
56        pub st_mtime: time64_t,
57        pub st_ctime: time64_t,
58    }
59
60    // note that this is called utimbuf64 in Windows
61    pub struct utimbuf {
62        pub actime: time64_t,
63        pub modtime: time64_t,
64    }
65
66    pub struct tm {
67        pub tm_sec: c_int,
68        pub tm_min: c_int,
69        pub tm_hour: c_int,
70        pub tm_mday: c_int,
71        pub tm_mon: c_int,
72        pub tm_year: c_int,
73        pub tm_wday: c_int,
74        pub tm_yday: c_int,
75        pub tm_isdst: c_int,
76    }
77
78    pub struct timeval {
79        pub tv_sec: c_long,
80        pub tv_usec: c_long,
81    }
82
83    pub struct timespec {
84        pub tv_sec: time_t,
85        pub tv_nsec: c_long,
86    }
87
88    pub struct sockaddr {
89        pub sa_family: c_ushort,
90        pub sa_data: [c_char; 14],
91    }
92}
93
94pub const INT_MIN: c_int = -2147483648;
95pub const INT_MAX: c_int = 2147483647;
96
97pub const EXIT_FAILURE: c_int = 1;
98pub const EXIT_SUCCESS: c_int = 0;
99pub const RAND_MAX: c_int = 32767;
100pub const EOF: c_int = -1;
101pub const SEEK_SET: c_int = 0;
102pub const SEEK_CUR: c_int = 1;
103pub const SEEK_END: c_int = 2;
104pub const _IOFBF: c_int = 0;
105pub const _IONBF: c_int = 4;
106pub const _IOLBF: c_int = 64;
107pub const BUFSIZ: c_uint = 512;
108pub const FOPEN_MAX: c_uint = 20;
109pub const FILENAME_MAX: c_uint = 260;
110
111// fcntl.h
112pub const O_RDONLY: c_int = 0x0000;
113pub const O_WRONLY: c_int = 0x0001;
114pub const O_RDWR: c_int = 0x0002;
115pub const O_APPEND: c_int = 0x0008;
116pub const O_CREAT: c_int = 0x0100;
117pub const O_TRUNC: c_int = 0x0200;
118pub const O_EXCL: c_int = 0x0400;
119pub const O_TEXT: c_int = 0x4000;
120pub const O_BINARY: c_int = 0x8000;
121pub const _O_WTEXT: c_int = 0x10000;
122pub const _O_U16TEXT: c_int = 0x20000;
123pub const _O_U8TEXT: c_int = 0x40000;
124pub const O_RAW: c_int = O_BINARY;
125pub const O_NOINHERIT: c_int = 0x0080;
126pub const O_TEMPORARY: c_int = 0x0040;
127pub const _O_SHORT_LIVED: c_int = 0x1000;
128pub const _O_OBTAIN_DIR: c_int = 0x2000;
129pub const O_SEQUENTIAL: c_int = 0x0020;
130pub const O_RANDOM: c_int = 0x0010;
131
132pub const S_IFCHR: c_int = 0o2_0000;
133pub const S_IFDIR: c_int = 0o4_0000;
134pub const S_IFREG: c_int = 0o10_0000;
135pub const S_IFMT: c_int = 0o17_0000;
136pub const S_IEXEC: c_int = 0o0100;
137pub const S_IWRITE: c_int = 0o0200;
138pub const S_IREAD: c_int = 0o0400;
139
140pub const LC_ALL: c_int = 0;
141pub const LC_COLLATE: c_int = 1;
142pub const LC_CTYPE: c_int = 2;
143pub const LC_MONETARY: c_int = 3;
144pub const LC_NUMERIC: c_int = 4;
145pub const LC_TIME: c_int = 5;
146
147pub const EPERM: c_int = 1;
148pub const ENOENT: c_int = 2;
149pub const ESRCH: c_int = 3;
150pub const EINTR: c_int = 4;
151pub const EIO: c_int = 5;
152pub const ENXIO: c_int = 6;
153pub const E2BIG: c_int = 7;
154pub const ENOEXEC: c_int = 8;
155pub const EBADF: c_int = 9;
156pub const ECHILD: c_int = 10;
157pub const EAGAIN: c_int = 11;
158pub const ENOMEM: c_int = 12;
159pub const EACCES: c_int = 13;
160pub const EFAULT: c_int = 14;
161pub const EBUSY: c_int = 16;
162pub const EEXIST: c_int = 17;
163pub const EXDEV: c_int = 18;
164pub const ENODEV: c_int = 19;
165pub const ENOTDIR: c_int = 20;
166pub const EISDIR: c_int = 21;
167pub const EINVAL: c_int = 22;
168pub const ENFILE: c_int = 23;
169pub const EMFILE: c_int = 24;
170pub const ENOTTY: c_int = 25;
171pub const EFBIG: c_int = 27;
172pub const ENOSPC: c_int = 28;
173pub const ESPIPE: c_int = 29;
174pub const EROFS: c_int = 30;
175pub const EMLINK: c_int = 31;
176pub const EPIPE: c_int = 32;
177pub const EDOM: c_int = 33;
178pub const ERANGE: c_int = 34;
179pub const EDEADLK: c_int = 36;
180pub const EDEADLOCK: c_int = 36;
181pub const ENAMETOOLONG: c_int = 38;
182pub const ENOLCK: c_int = 39;
183pub const ENOSYS: c_int = 40;
184pub const ENOTEMPTY: c_int = 41;
185pub const EILSEQ: c_int = 42;
186pub const STRUNCATE: c_int = 80;
187
188// POSIX Supplement (from errno.h)
189pub const EADDRINUSE: c_int = 100;
190pub const EADDRNOTAVAIL: c_int = 101;
191pub const EAFNOSUPPORT: c_int = 102;
192pub const EALREADY: c_int = 103;
193pub const EBADMSG: c_int = 104;
194pub const ECANCELED: c_int = 105;
195pub const ECONNABORTED: c_int = 106;
196pub const ECONNREFUSED: c_int = 107;
197pub const ECONNRESET: c_int = 108;
198pub const EDESTADDRREQ: c_int = 109;
199pub const EHOSTUNREACH: c_int = 110;
200pub const EIDRM: c_int = 111;
201pub const EINPROGRESS: c_int = 112;
202pub const EISCONN: c_int = 113;
203pub const ELOOP: c_int = 114;
204pub const EMSGSIZE: c_int = 115;
205pub const ENETDOWN: c_int = 116;
206pub const ENETRESET: c_int = 117;
207pub const ENETUNREACH: c_int = 118;
208pub const ENOBUFS: c_int = 119;
209pub const ENODATA: c_int = 120;
210pub const ENOLINK: c_int = 121;
211pub const ENOMSG: c_int = 122;
212pub const ENOPROTOOPT: c_int = 123;
213pub const ENOSR: c_int = 124;
214pub const ENOSTR: c_int = 125;
215pub const ENOTCONN: c_int = 126;
216pub const ENOTRECOVERABLE: c_int = 127;
217pub const ENOTSOCK: c_int = 128;
218pub const ENOTSUP: c_int = 129;
219pub const EOPNOTSUPP: c_int = 130;
220pub const EOVERFLOW: c_int = 132;
221pub const EOWNERDEAD: c_int = 133;
222pub const EPROTO: c_int = 134;
223pub const EPROTONOSUPPORT: c_int = 135;
224pub const EPROTOTYPE: c_int = 136;
225pub const ETIME: c_int = 137;
226pub const ETIMEDOUT: c_int = 138;
227pub const ETXTBSY: c_int = 139;
228pub const EWOULDBLOCK: c_int = 140;
229
230// signal codes
231pub const SIGINT: c_int = 2;
232pub const SIGILL: c_int = 4;
233pub const SIGFPE: c_int = 8;
234pub const SIGSEGV: c_int = 11;
235pub const SIGTERM: c_int = 15;
236pub const SIGABRT: c_int = 22;
237pub const NSIG: c_int = 23;
238
239pub const SIG_ERR: c_int = -1;
240pub const SIG_DFL: crate::sighandler_t = 0;
241pub const SIG_IGN: crate::sighandler_t = 1;
242pub const SIG_GET: crate::sighandler_t = 2;
243pub const SIG_SGE: crate::sighandler_t = 3;
244pub const SIG_ACK: crate::sighandler_t = 4;
245
246// DIFF(main): removed in 458c58f409
247// FIXME(msrv): done by `std` starting in 1.79.0
248// inline comment below appeases style checker
249#[cfg(all(target_env = "msvc", feature = "rustc-dep-of-std"))] // " if "
250#[link(name = "msvcrt", cfg(not(target_feature = "crt-static")))]
251#[link(name = "libcmt", cfg(target_feature = "crt-static"))]
252extern "C" {}
253
254#[derive(Debug)]
255pub enum FILE {}
256impl Copy for FILE {}
257impl Clone for FILE {
258    fn clone(&self) -> FILE {
259        *self
260    }
261}
262#[derive(Debug)]
263pub enum fpos_t {} // FIXME(windows): fill this out with a struct
264impl Copy for fpos_t {}
265impl Clone for fpos_t {
266    fn clone(&self) -> fpos_t {
267        *self
268    }
269}
270
271// Special handling for all print and scan type functions because of https://github.com/rust-lang/libc/issues/2860
272cfg_if! {
273    if #[cfg(not(feature = "rustc-dep-of-std"))] {
274        #[cfg_attr(
275            all(windows, target_env = "msvc"),
276            link(name = "legacy_stdio_definitions")
277        )]
278        extern "C" {
279            pub fn printf(format: *const c_char, ...) -> c_int;
280            pub fn fprintf(stream: *mut FILE, format: *const c_char, ...) -> c_int;
281        }
282    }
283}
284
285extern "C" {
286    pub fn isalnum(c: c_int) -> c_int;
287    pub fn isalpha(c: c_int) -> c_int;
288    pub fn iscntrl(c: c_int) -> c_int;
289    pub fn isdigit(c: c_int) -> c_int;
290    pub fn isgraph(c: c_int) -> c_int;
291    pub fn islower(c: c_int) -> c_int;
292    pub fn isprint(c: c_int) -> c_int;
293    pub fn ispunct(c: c_int) -> c_int;
294    pub fn isspace(c: c_int) -> c_int;
295    pub fn isupper(c: c_int) -> c_int;
296    pub fn isxdigit(c: c_int) -> c_int;
297    pub fn isblank(c: c_int) -> c_int;
298    pub fn tolower(c: c_int) -> c_int;
299    pub fn toupper(c: c_int) -> c_int;
300    pub fn qsort(
301        base: *mut c_void,
302        num: size_t,
303        size: size_t,
304        compar: Option<unsafe extern "C" fn(*const c_void, *const c_void) -> c_int>,
305    );
306    pub fn qsort_s(
307        base: *mut c_void,
308        num: size_t,
309        size: size_t,
310        compar: Option<unsafe extern "C" fn(*mut c_void, *const c_void, *const c_void) -> c_int>,
311        arg: *mut c_void,
312    );
313    pub fn fopen(filename: *const c_char, mode: *const c_char) -> *mut FILE;
314    pub fn freopen(filename: *const c_char, mode: *const c_char, file: *mut FILE) -> *mut FILE;
315    pub fn fflush(file: *mut FILE) -> c_int;
316    pub fn fclose(file: *mut FILE) -> c_int;
317    pub fn remove(filename: *const c_char) -> c_int;
318    pub fn rename(oldname: *const c_char, newname: *const c_char) -> c_int;
319    pub fn tmpfile() -> *mut FILE;
320    pub fn setvbuf(stream: *mut FILE, buffer: *mut c_char, mode: c_int, size: size_t) -> c_int;
321    pub fn setbuf(stream: *mut FILE, buf: *mut c_char);
322    pub fn getchar() -> c_int;
323    pub fn putchar(c: c_int) -> c_int;
324    pub fn fgetc(stream: *mut FILE) -> c_int;
325    pub fn fgets(buf: *mut c_char, n: c_int, stream: *mut FILE) -> *mut c_char;
326    pub fn fputc(c: c_int, stream: *mut FILE) -> c_int;
327    pub fn fputs(s: *const c_char, stream: *mut FILE) -> c_int;
328    pub fn puts(s: *const c_char) -> c_int;
329    pub fn ungetc(c: c_int, stream: *mut FILE) -> c_int;
330    pub fn fread(ptr: *mut c_void, size: size_t, nobj: size_t, stream: *mut FILE) -> size_t;
331    pub fn fwrite(ptr: *const c_void, size: size_t, nobj: size_t, stream: *mut FILE) -> size_t;
332    pub fn fseek(stream: *mut FILE, offset: c_long, whence: c_int) -> c_int;
333    pub fn ftell(stream: *mut FILE) -> c_long;
334    pub fn rewind(stream: *mut FILE);
335    pub fn fgetpos(stream: *mut FILE, ptr: *mut fpos_t) -> c_int;
336    pub fn fsetpos(stream: *mut FILE, ptr: *const fpos_t) -> c_int;
337    pub fn feof(stream: *mut FILE) -> c_int;
338    pub fn ferror(stream: *mut FILE) -> c_int;
339    pub fn perror(s: *const c_char);
340    pub fn atof(s: *const c_char) -> c_double;
341    pub fn atoi(s: *const c_char) -> c_int;
342    pub fn atol(s: *const c_char) -> c_long;
343    pub fn atoll(s: *const c_char) -> c_longlong;
344    pub fn strtod(s: *const c_char, endp: *mut *mut c_char) -> c_double;
345    pub fn strtof(s: *const c_char, endp: *mut *mut c_char) -> c_float;
346    pub fn strtol(s: *const c_char, endp: *mut *mut c_char, base: c_int) -> c_long;
347    pub fn strtoll(s: *const c_char, endp: *mut *mut c_char, base: c_int) -> c_longlong;
348    pub fn strtoul(s: *const c_char, endp: *mut *mut c_char, base: c_int) -> c_ulong;
349    pub fn strtoull(s: *const c_char, endp: *mut *mut c_char, base: c_int) -> c_ulonglong;
350    pub fn calloc(nobj: size_t, size: size_t) -> *mut c_void;
351    pub fn malloc(size: size_t) -> *mut c_void;
352    pub fn _msize(p: *mut c_void) -> size_t;
353    pub fn realloc(p: *mut c_void, size: size_t) -> *mut c_void;
354    pub fn free(p: *mut c_void);
355    pub fn abort() -> !;
356    pub fn exit(status: c_int) -> !;
357    pub fn _exit(status: c_int) -> !;
358    pub fn atexit(cb: extern "C" fn()) -> c_int;
359    pub fn system(s: *const c_char) -> c_int;
360    pub fn getenv(s: *const c_char) -> *mut c_char;
361
362    pub fn strcpy(dst: *mut c_char, src: *const c_char) -> *mut c_char;
363    pub fn strncpy(dst: *mut c_char, src: *const c_char, n: size_t) -> *mut c_char;
364    pub fn strcat(s: *mut c_char, ct: *const c_char) -> *mut c_char;
365    pub fn strncat(s: *mut c_char, ct: *const c_char, n: size_t) -> *mut c_char;
366    pub fn strcmp(cs: *const c_char, ct: *const c_char) -> c_int;
367    pub fn strncmp(cs: *const c_char, ct: *const c_char, n: size_t) -> c_int;
368    pub fn strcoll(cs: *const c_char, ct: *const c_char) -> c_int;
369    pub fn strchr(cs: *const c_char, c: c_int) -> *mut c_char;
370    pub fn strrchr(cs: *const c_char, c: c_int) -> *mut c_char;
371    pub fn strspn(cs: *const c_char, ct: *const c_char) -> size_t;
372    pub fn strcspn(cs: *const c_char, ct: *const c_char) -> size_t;
373    pub fn strdup(cs: *const c_char) -> *mut c_char;
374    pub fn strpbrk(cs: *const c_char, ct: *const c_char) -> *mut c_char;
375    pub fn strstr(cs: *const c_char, ct: *const c_char) -> *mut c_char;
376    pub fn strlen(cs: *const c_char) -> size_t;
377    pub fn strnlen(cs: *const c_char, maxlen: size_t) -> size_t;
378    pub fn strerror(n: c_int) -> *mut c_char;
379    pub fn strtok(s: *mut c_char, t: *const c_char) -> *mut c_char;
380    pub fn strxfrm(s: *mut c_char, ct: *const c_char, n: size_t) -> size_t;
381    pub fn wcslen(buf: *const wchar_t) -> size_t;
382    pub fn wcsnlen(str: *const wchar_t, numberOfElements: size_t) -> size_t;
383    pub fn wcstombs(dest: *mut c_char, src: *const wchar_t, n: size_t) -> size_t;
384
385    pub fn memchr(cx: *const c_void, c: c_int, n: size_t) -> *mut c_void;
386    pub fn memcmp(cx: *const c_void, ct: *const c_void, n: size_t) -> c_int;
387    pub fn memcpy(dest: *mut c_void, src: *const c_void, n: size_t) -> *mut c_void;
388    pub fn memmove(dest: *mut c_void, src: *const c_void, n: size_t) -> *mut c_void;
389    pub fn memset(dest: *mut c_void, c: c_int, n: size_t) -> *mut c_void;
390
391    pub fn abs(i: c_int) -> c_int;
392    pub fn labs(i: c_long) -> c_long;
393    pub fn rand() -> c_int;
394    pub fn srand(seed: c_uint);
395
396    pub fn signal(signum: c_int, handler: sighandler_t) -> sighandler_t;
397    pub fn raise(signum: c_int) -> c_int;
398
399    pub fn clock() -> clock_t;
400    pub fn ctime(sourceTime: *const time_t) -> *mut c_char;
401    pub fn difftime(timeEnd: time_t, timeStart: time_t) -> c_double;
402    #[link_name = "_gmtime64_s"]
403    pub fn gmtime_s(destTime: *mut tm, srcTime: *const time_t) -> c_int;
404    #[link_name = "_get_daylight"]
405    pub fn get_daylight(hours: *mut c_int) -> errno_t;
406    #[link_name = "_get_dstbias"]
407    pub fn get_dstbias(seconds: *mut c_long) -> errno_t;
408    #[link_name = "_get_timezone"]
409    pub fn get_timezone(seconds: *mut c_long) -> errno_t;
410    #[link_name = "_get_tzname"]
411    pub fn get_tzname(
412        p_return_value: *mut size_t,
413        time_zone_name: *mut c_char,
414        size_in_bytes: size_t,
415        index: c_int,
416    ) -> errno_t;
417    #[link_name = "_localtime64_s"]
418    pub fn localtime_s(tmDest: *mut tm, sourceTime: *const time_t) -> crate::errno_t;
419    #[link_name = "_time64"]
420    pub fn time(destTime: *mut time_t) -> time_t;
421    #[link_name = "_tzset"]
422    pub fn tzset();
423    #[link_name = "_chmod"]
424    pub fn chmod(path: *const c_char, mode: c_int) -> c_int;
425    #[link_name = "_wchmod"]
426    pub fn wchmod(path: *const wchar_t, mode: c_int) -> c_int;
427    #[link_name = "_mkdir"]
428    pub fn mkdir(path: *const c_char) -> c_int;
429    #[link_name = "_wrmdir"]
430    pub fn wrmdir(path: *const wchar_t) -> c_int;
431    #[link_name = "_fstat64"]
432    pub fn fstat(fildes: c_int, buf: *mut stat) -> c_int;
433    #[link_name = "_stat64"]
434    pub fn stat(path: *const c_char, buf: *mut stat) -> c_int;
435    #[link_name = "_wstat64"]
436    pub fn wstat(path: *const wchar_t, buf: *mut stat) -> c_int;
437    #[link_name = "_wutime64"]
438    pub fn wutime(file: *const wchar_t, buf: *mut utimbuf) -> c_int;
439    #[link_name = "_popen"]
440    pub fn popen(command: *const c_char, mode: *const c_char) -> *mut crate::FILE;
441    #[link_name = "_pclose"]
442    pub fn pclose(stream: *mut crate::FILE) -> c_int;
443    #[link_name = "_fdopen"]
444    pub fn fdopen(fd: c_int, mode: *const c_char) -> *mut crate::FILE;
445    #[link_name = "_fileno"]
446    pub fn fileno(stream: *mut crate::FILE) -> c_int;
447    #[link_name = "_open"]
448    pub fn open(path: *const c_char, oflag: c_int, ...) -> c_int;
449    #[link_name = "_wopen"]
450    pub fn wopen(path: *const wchar_t, oflag: c_int, ...) -> c_int;
451    #[link_name = "_creat"]
452    pub fn creat(path: *const c_char, mode: c_int) -> c_int;
453    #[link_name = "_access"]
454    pub fn access(path: *const c_char, amode: c_int) -> c_int;
455    #[link_name = "_chdir"]
456    pub fn chdir(dir: *const c_char) -> c_int;
457    #[link_name = "_close"]
458    pub fn close(fd: c_int) -> c_int;
459    #[link_name = "_dup"]
460    pub fn dup(fd: c_int) -> c_int;
461    #[link_name = "_dup2"]
462    pub fn dup2(src: c_int, dst: c_int) -> c_int;
463    #[link_name = "_execl"]
464    pub fn execl(path: *const c_char, arg0: *const c_char, ...) -> intptr_t;
465    #[link_name = "_wexecl"]
466    pub fn wexecl(path: *const wchar_t, arg0: *const wchar_t, ...) -> intptr_t;
467    #[link_name = "_execle"]
468    pub fn execle(path: *const c_char, arg0: *const c_char, ...) -> intptr_t;
469    #[link_name = "_wexecle"]
470    pub fn wexecle(path: *const wchar_t, arg0: *const wchar_t, ...) -> intptr_t;
471    #[link_name = "_execlp"]
472    pub fn execlp(path: *const c_char, arg0: *const c_char, ...) -> intptr_t;
473    #[link_name = "_wexeclp"]
474    pub fn wexeclp(path: *const wchar_t, arg0: *const wchar_t, ...) -> intptr_t;
475    #[link_name = "_execlpe"]
476    pub fn execlpe(path: *const c_char, arg0: *const c_char, ...) -> intptr_t;
477    #[link_name = "_wexeclpe"]
478    pub fn wexeclpe(path: *const wchar_t, arg0: *const wchar_t, ...) -> intptr_t;
479    #[link_name = "_execv"]
480    // DIFF(main): changed to `intptr_t` in e77f551de9
481    pub fn execv(prog: *const c_char, argv: *const *const c_char) -> intptr_t;
482    #[link_name = "_execve"]
483    pub fn execve(
484        prog: *const c_char,
485        argv: *const *const c_char,
486        envp: *const *const c_char,
487    ) -> c_int;
488    #[link_name = "_execvp"]
489    pub fn execvp(c: *const c_char, argv: *const *const c_char) -> c_int;
490    #[link_name = "_execvpe"]
491    pub fn execvpe(
492        c: *const c_char,
493        argv: *const *const c_char,
494        envp: *const *const c_char,
495    ) -> c_int;
496
497    #[link_name = "_wexecv"]
498    pub fn wexecv(prog: *const wchar_t, argv: *const *const wchar_t) -> intptr_t;
499    #[link_name = "_wexecve"]
500    pub fn wexecve(
501        prog: *const wchar_t,
502        argv: *const *const wchar_t,
503        envp: *const *const wchar_t,
504    ) -> intptr_t;
505    #[link_name = "_wexecvp"]
506    pub fn wexecvp(c: *const wchar_t, argv: *const *const wchar_t) -> intptr_t;
507    #[link_name = "_wexecvpe"]
508    pub fn wexecvpe(
509        c: *const wchar_t,
510        argv: *const *const wchar_t,
511        envp: *const *const wchar_t,
512    ) -> intptr_t;
513    #[link_name = "_getcwd"]
514    pub fn getcwd(buf: *mut c_char, size: c_int) -> *mut c_char;
515    #[link_name = "_getpid"]
516    pub fn getpid() -> c_int;
517    #[link_name = "_isatty"]
518    pub fn isatty(fd: c_int) -> c_int;
519    #[link_name = "_lseek"]
520    pub fn lseek(fd: c_int, offset: c_long, origin: c_int) -> c_long;
521    #[link_name = "_lseeki64"]
522    pub fn lseek64(fd: c_int, offset: c_longlong, origin: c_int) -> c_longlong;
523    #[link_name = "_pipe"]
524    pub fn pipe(fds: *mut c_int, psize: c_uint, textmode: c_int) -> c_int;
525    #[link_name = "_read"]
526    pub fn read(fd: c_int, buf: *mut c_void, count: c_uint) -> c_int;
527    #[link_name = "_rmdir"]
528    pub fn rmdir(path: *const c_char) -> c_int;
529    #[link_name = "_unlink"]
530    pub fn unlink(c: *const c_char) -> c_int;
531    #[link_name = "_write"]
532    pub fn write(fd: c_int, buf: *const c_void, count: c_uint) -> c_int;
533    #[link_name = "_commit"]
534    pub fn commit(fd: c_int) -> c_int;
535    #[link_name = "_get_osfhandle"]
536    pub fn get_osfhandle(fd: c_int) -> intptr_t;
537    #[link_name = "_open_osfhandle"]
538    pub fn open_osfhandle(osfhandle: intptr_t, flags: c_int) -> c_int;
539    pub fn setlocale(category: c_int, locale: *const c_char) -> *mut c_char;
540    #[link_name = "_wsetlocale"]
541    pub fn wsetlocale(category: c_int, locale: *const wchar_t) -> *mut wchar_t;
542    #[link_name = "_aligned_malloc"]
543    pub fn aligned_malloc(size: size_t, alignment: size_t) -> *mut c_void;
544    #[link_name = "_aligned_free"]
545    pub fn aligned_free(ptr: *mut c_void);
546    #[link_name = "_aligned_realloc"]
547    pub fn aligned_realloc(memblock: *mut c_void, size: size_t, alignment: size_t) -> *mut c_void;
548    #[link_name = "_putenv"]
549    pub fn putenv(envstring: *const c_char) -> c_int;
550    #[link_name = "_wputenv"]
551    pub fn wputenv(envstring: *const crate::wchar_t) -> c_int;
552    #[link_name = "_putenv_s"]
553    pub fn putenv_s(envstring: *const c_char, value_string: *const c_char) -> crate::errno_t;
554    #[link_name = "_wputenv_s"]
555    pub fn wputenv_s(
556        envstring: *const crate::wchar_t,
557        value_string: *const crate::wchar_t,
558    ) -> crate::errno_t;
559}
560
561extern "system" {
562    pub fn listen(s: SOCKET, backlog: c_int) -> c_int;
563    pub fn accept(s: SOCKET, addr: *mut crate::sockaddr, addrlen: *mut c_int) -> SOCKET;
564    pub fn bind(s: SOCKET, name: *const crate::sockaddr, namelen: c_int) -> c_int;
565    pub fn connect(s: SOCKET, name: *const crate::sockaddr, namelen: c_int) -> c_int;
566    pub fn getpeername(s: SOCKET, name: *mut crate::sockaddr, nameln: *mut c_int) -> c_int;
567    pub fn getsockname(s: SOCKET, name: *mut crate::sockaddr, nameln: *mut c_int) -> c_int;
568    pub fn getsockopt(
569        s: SOCKET,
570        level: c_int,
571        optname: c_int,
572        optval: *mut c_char,
573        optlen: *mut c_int,
574    ) -> c_int;
575    pub fn recvfrom(
576        s: SOCKET,
577        buf: *mut c_char,
578        len: c_int,
579        flags: c_int,
580        from: *mut crate::sockaddr,
581        fromlen: *mut c_int,
582    ) -> c_int;
583    pub fn sendto(
584        s: SOCKET,
585        buf: *const c_char,
586        len: c_int,
587        flags: c_int,
588        to: *const crate::sockaddr,
589        tolen: c_int,
590    ) -> c_int;
591    pub fn setsockopt(
592        s: SOCKET,
593        level: c_int,
594        optname: c_int,
595        optval: *const c_char,
596        optlen: c_int,
597    ) -> c_int;
598    pub fn socket(af: c_int, socket_type: c_int, protocol: c_int) -> SOCKET;
599}
600
601cfg_if! {
602    if #[cfg(all(target_env = "gnu"))] {
603        mod gnu;
604        pub use self::gnu::*;
605    } else if #[cfg(all(target_env = "msvc"))] {
606        mod msvc;
607        pub use self::msvc::*;
608    } else {
609        // Unknown target_env
610    }
611}