300     pub fn fopen(filename: *const c_char, mode: *const c_char) -> *mut FILE;  in fopen()
301     pub fn freopen(filename: *const c_char, mode: *const c_char, file: *mut FILE) -> *mut FILE;  in freopen()
305     pub fn rename(oldname: *const c_char, newname: *const c_char) -> c_int;  in rename()
307     pub fn setvbuf(stream: *mut FILE, buffer: *mut c_char, mode: c_int, size: size_t) -> c_int;  in setvbuf()
308     pub fn setbuf(stream: *mut FILE, buf: *mut c_char);  in setbuf()
312     pub fn fgets(buf: *mut c_char, n: c_int, stream: *mut FILE) -> *mut c_char;  in fgets()
314     pub fn fputs(s: *const c_char, stream: *mut FILE) -> c_int;  in fputs()
326     pub fn perror(s: *const c_char);  in perror()
331     pub fn strtod(s: *const c_char, endp: *mut *mut c_char) -> c_double;  in strtod()
332     pub fn strtof(s: *const c_char, endp: *mut *mut c_char) -> c_float;  in strtof()
333     pub fn strtol(s: *const c_char, endp: *mut *mut c_char, base: c_int) -> c_long;  in strtol()
334     pub fn strtoll(s: *const c_char, endp: *mut *mut c_char, base: c_int) -> c_longlong;  in strtoll()
335     pub fn strtoul(s: *const c_char, endp: *mut *mut c_char, base: c_int) -> c_ulong;  in strtoul()
336     pub fn strtoull(s: *const c_char, endp: *mut *mut c_char, base: c_int) -> c_ulonglong;  in strtoull()
347     pub fn getenv(s: *const c_char) -> *mut c_char;  in getenv()
349     pub fn strcpy(dst: *mut c_char, src: *const c_char) -> *mut c_char;  in strcpy()
350     pub fn strncpy(dst: *mut c_char, src: *const c_char, n: size_t) -> *mut c_char;  in strncpy()
351     pub fn strcat(s: *mut c_char, ct: *const c_char) -> *mut c_char;  in strcat()
352     pub fn strncat(s: *mut c_char, ct: *const c_char, n: size_t) -> *mut c_char;  in strncat()
353     pub fn strcmp(cs: *const c_char, ct: *const c_char) -> c_int;  in strcmp()
354     pub fn strncmp(cs: *const c_char, ct: *const c_char, n: size_t) -> c_int;  in strncmp()
355     pub fn strcoll(cs: *const c_char, ct: *const c_char) -> c_int;  in strcoll()
356     pub fn strchr(cs: *const c_char, c: c_int) -> *mut c_char;  in strchr()
357     pub fn strrchr(cs: *const c_char, c: c_int) -> *mut c_char;  in strrchr()
358     pub fn strspn(cs: *const c_char, ct: *const c_char) -> size_t;  in strspn()
359     pub fn strcspn(cs: *const c_char, ct: *const c_char) -> size_t;  in strcspn()
360     pub fn strdup(cs: *const c_char) -> *mut c_char;  in strdup()
361     pub fn strpbrk(cs: *const c_char, ct: *const c_char) -> *mut c_char;  in strpbrk()
362     pub fn strstr(cs: *const c_char, ct: *const c_char) -> *mut c_char;  in strstr()
364     pub fn strnlen(cs: *const c_char, maxlen: size_t) -> size_t;  in strnlen()
365     pub fn strerror(n: c_int) -> *mut c_char;  in strerror()
366     pub fn strtok(s: *mut c_char, t: *const c_char) -> *mut c_char;  in strtok()
367     pub fn strxfrm(s: *mut c_char, ct: *const c_char, n: size_t) -> size_t;  in strxfrm()
369     pub fn wcstombs(dest: *mut c_char, src: *const wchar_t, n: size_t) -> size_t;  in wcstombs()
386     pub fn ctime(sourceTime: *const time_t) -> *mut c_char;  in ctime()
399         time_zone_name: *mut c_char,  in get_tzname()
410     pub fn chmod(path: *const c_char, mode: c_int) -> c_int;  in chmod()
420     pub fn stat(path: *const c_char, buf: *mut stat) -> c_int;  in stat()
426     pub fn popen(command: *const c_char, mode: *const c_char) -> *mut crate::FILE;  in popen()
434     pub fn open(path: *const c_char, oflag: c_int, ...) -> c_int;  in open()
438     pub fn creat(path: *const c_char, mode: c_int) -> c_int;  in creat()
440     pub fn access(path: *const c_char, amode: c_int) -> c_int;  in access()
450     pub fn execl(path: *const c_char, arg0: *const c_char, ...) -> intptr_t;  in execl()
454     pub fn execle(path: *const c_char, arg0: *const c_char, ...) -> intptr_t;  in execle()
458     pub fn execlp(path: *const c_char, arg0: *const c_char, ...) -> intptr_t;  in execlp()
462     pub fn execlpe(path: *const c_char, arg0: *const c_char, ...) -> intptr_t;  in execlpe()
467     pub fn execv(prog: *const c_char, argv: *const *const c_char) -> intptr_t;  in execv()
470         prog: *const c_char,  in execve()
471         argv: *const *const c_char,  in execve()
472         envp: *const *const c_char,  in execve()
475     pub fn execvp(c: *const c_char, argv: *const *const c_char) -> c_int;  in execvp()
478         c: *const c_char,  in execvpe()
479         argv: *const *const c_char,  in execvpe()
480         envp: *const *const c_char,  in execvpe()
500     pub fn getcwd(buf: *mut c_char, size: c_int) -> *mut c_char;  in getcwd()
525     pub fn setlocale(category: c_int, locale: *const c_char) -> *mut c_char;  in setlocale()
539     pub fn putenv_s(envstring: *const c_char, value_string: *const c_char) -> crate::errno_t;  in putenv_s()
558         optval: *mut c_char,  in getsockopt()
563         buf: *mut c_char,  in recvfrom()
571         buf: *const c_char,  in sendto()
581         optval: *const c_char,  in setsockopt()