341 lines
12 KiB
C
341 lines
12 KiB
C
/*
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* Copyright (c) 2011, 2012, 2013, 2014, 2015, 2022 Jonas 'Sortie' Termansen.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* stdio.h
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* Standard buffered input/output.
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*/
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#ifndef _INCLUDE_STDIO_H
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#define _INCLUDE_STDIO_H
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#include <sys/cdefs.h>
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#include <sys/__/types.h>
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#include <sortix/seek.h>
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#if __USE_SORTIX || __USE_POSIX
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/* TODO: This gets too much from <stdarg.h> and not just va_list. Unfortunately
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the <stdarg.h> header that comes with gcc has no way to just request
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the declaration of va_list. Sortix libc should ship its own stdarg.h
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header instead and have a <__/stdarg.h> header we can typedef from. */
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#else
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#define __need___va_list
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#endif
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#include <stdarg.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#if __USE_SORTIX || 2008 <= __USE_POSIX
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#ifndef __off_t_defined
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#define __off_t_defined
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typedef __off_t off_t;
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#endif
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#endif
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#ifndef __size_t_defined
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#define __size_t_defined
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#define __need_size_t
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#include <stddef.h>
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#endif
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#if __USE_SORTIX || __USE_POSIX
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#ifndef __ssize_t_defined
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#define __ssize_t_defined
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typedef __ssize_t ssize_t;
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#endif
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#endif
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#ifndef NULL
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#define __need_NULL
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#include <stddef.h>
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#endif
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#ifndef __FILE_defined
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#define __FILE_defined
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typedef struct __FILE FILE;
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#endif
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#if __USE_SORTIX || 2008 <= __USE_POSIX
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typedef off_t fpos_t;
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#else
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typedef __off_t fpos_t;
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#endif
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#if __USE_SORTIX || __USE_POSIX
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/* TODO: Implement L_ctermid */
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/* L_tmpnam will not be implemented. */
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#endif
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/* The possibilities for the third argument to `setvbuf'. */
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#define _IOFBF 0 /* Fully buffered. */
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#define _IOLBF 1 /* Line buffered. */
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#define _IONBF 2 /* No buffering. */
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#define EOF (-1)
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/* FILENAME_MAX, FOPEN_MAX are not defined because Sortix doesn't have these
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restrictions. */
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#if __USE_SORTIX || __USE_POSIX
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/* TMP_MAX are not defined because Sortix doesn't have these restrictions. */
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#endif
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#if __USE_SORTIX || __USE_POSIX
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/* P_tmpdir will not be implemented. */
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#endif
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/* Size of <stdio.h> buffers. */
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#define BUFSIZ 8192
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/* Constants used by `fparsemode'. */
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#if __USE_SORTIX
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#define FILE_MODE_READ (1 << 0)
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#define FILE_MODE_WRITE (1 << 1)
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#define FILE_MODE_APPEND (1 << 2)
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#define FILE_MODE_CREATE (1 << 3)
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#define FILE_MODE_TRUNCATE (1 << 4)
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#define FILE_MODE_BINARY (1 << 5)
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#define FILE_MODE_EXCL (1 << 6)
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#define FILE_MODE_CLOEXEC (1 << 7)
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#endif
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extern FILE* const stdin;
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extern FILE* const stdout;
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extern FILE* const stderr;
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#define stdin stdin
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#define stdout stdout
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#define stderr stderr
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/* Functions from C89. */
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void clearerr(FILE* stream);
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int fclose(FILE* stream);
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int feof(FILE* stream);
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int ferror(FILE* stream);
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int fflush(FILE* stream);
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int fgetc(FILE* stream);
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int fgetpos(FILE* __restrict stream, fpos_t* __restrict pos);
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char* fgets(char* __restrict s, int n, FILE* __restrict stream);
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FILE* fopen(const char* __restrict filename, const char* __restrict mode);
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int fprintf(FILE* __restrict stream, const char* __restrict format, ...)
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__attribute__((__format__ (printf, 2, 3)));
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int fputc(int c, FILE* stream);
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int fputs(const char* __restrict, FILE* __restrict stream);
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size_t fread(void* __restrict ptr, size_t size, size_t nitems, FILE* __restrict stream);
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FILE* freopen(const char* __restrict filename, const char *__restrict mode, FILE* __restrict stream);
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int fscanf(FILE* __restrict stream, const char* __restrict format, ... )
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__attribute__((__format__ (scanf, 2, 3)));
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int fseek(FILE* stream, long offset, int whence);
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int fsetpos(FILE* stream, const fpos_t* pos);
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long ftell(FILE* stream);
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size_t fwrite(const void* __restrict ptr, size_t size, size_t nitems, FILE* __restrict stream);
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int getc(FILE* stream);
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int getchar(void);
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#if __USE_C < 2011
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/* gets will not be implemented. */
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#endif
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void perror(const char* s);
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int printf(const char* __restrict format, ...)
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__attribute__((__format__ (printf, 1, 2)));
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int putc(int c, FILE* stream);
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int putchar(int c);
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int puts(const char* str);
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int remove(const char* path);
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int rename(const char* oldname, const char* newname);
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void rewind(FILE* stream);
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void setbuf(FILE* __restrict stream, char* __restrict buf);
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int setvbuf(FILE* __restrict stream, char* __restrict buf, int type, size_t size);
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#if !defined(__is_sortix_libc) /* not a warning inside libc */
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__attribute__((__warning__("sprintf() is dangerous, use snprintf()")))
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#endif
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int sprintf(char* __restrict s, const char* __restrict format, ...)
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__attribute__((__format__ (printf, 2, 3)));
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int scanf(const char* __restrict format, ...)
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__attribute__((__format__ (scanf, 1, 2)));
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int sscanf(const char* __restrict s, const char* __restrict format, ...)
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__attribute__((__format__ (scanf, 2, 3)));
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FILE* tmpfile(void);
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int ungetc(int c, FILE* stream);
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int vfprintf(FILE* __restrict stream, const char* __restrict format, __gnuc_va_list ap)
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__attribute__((__format__ (printf, 2, 0)));
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int vprintf(const char* __restrict format, __gnuc_va_list ap)
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__attribute__((__format__ (printf, 1, 0)));
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#if !defined(__is_sortix_libc) /* not a warning inside libc */
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__attribute__((__warning__("vsprintf() is dangerous, use vsnprintf()")))
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#endif
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int vsprintf(char* __restrict s, const char* __restrict format, __gnuc_va_list ap)
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__attribute__((__format__ (printf, 2, 0)));
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/* Functions from C99. */
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#if __USE_SORTIX || 1999 <= __USE_C
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int snprintf(char* __restrict s, size_t n, const char* __restrict format, ...)
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__attribute__((__format__ (printf, 3, 4)));
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int vfscanf(FILE* __restrict stream, const char* __restrict format, __gnuc_va_list arg)
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__attribute__((__format__ (scanf, 2, 0)));
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int vscanf(const char* __restrict format, __gnuc_va_list arg)
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__attribute__((__format__ (scanf, 1, 0)));
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int vsnprintf(char* __restrict, size_t, const char* __restrict, __gnuc_va_list)
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__attribute__((__format__ (printf, 3, 0)));
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int vsscanf(const char* __restrict s, const char* __restrict format, __gnuc_va_list arg)
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__attribute__((__format__ (scanf, 2, 0)));
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#endif
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/* Functions from early POSIX. */
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#if __USE_SORTIX || __USE_POSIX
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int fileno(FILE* stream);
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void flockfile(FILE* file);
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FILE* fdopen(int fildes, const char* mode);
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int ftrylockfile(FILE* file);
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void funlockfile(FILE* file);
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int getc_unlocked(FILE* stream);
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int getchar_unlocked(void);
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int putc_unlocked(int c, FILE* stream);
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int putchar_unlocked(int c);
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/* tmpnam will not be implemented. */
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#endif
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#if __USE_POSIX
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/* TODO: ctermid */
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#endif
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#if __USE_XOPEN
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/* tempnam will not be implemented. */
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#endif
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/* Functions from less early POSIX. */
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#if __USE_SORTIX || 199209L <= __USE_POSIX
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int pclose(FILE* steam);
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FILE* popen(const char* command, const char* mode);
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#endif
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/* Functions from POSIX 2001. */
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#if __USE_SORTIX || 200112L <= __USE_POSIX
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int fseeko(FILE* stream, off_t offset, int whence);
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off_t ftello(FILE* stream);
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#endif
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/* Functions from POSIX 2008. */
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#if __USE_SORTIX || 200809L <= __USE_POSIX
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int dprintf(int fildes, const char* __restrict format, ...)
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__attribute__((__format__ (printf, 2, 3)));
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FILE* fmemopen(void* __restrict, size_t, const char* __restrict);
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ssize_t getdelim(char** __restrict lineptr, size_t* __restrict n, int delimiter, FILE* __restrict stream);
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FILE* open_memstream(char**, size_t*);
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ssize_t getline(char** __restrict lineptr, size_t* __restrict n, FILE* __restrict stream);
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int renameat(int oldfd, const char* oldname, int newfd, const char* newname);
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int vdprintf(int fildes, const char* __restrict format, __gnuc_va_list ap)
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__attribute__((__format__ (printf, 2, 0)));
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#endif
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/* Functions copied from elsewhere. */
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#if __USE_SORTIX
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#ifdef __TRACE_ALLOCATION_SITES
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int asprintf_trace(struct __allocation_site*, char** __restrict, const char* __restrict, ...)
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__attribute__((__format__ (printf, 3, 4)));
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#define asprintf(a, ...) asprintf_trace(ALLOCATION_SITE, (a), __VA_ARGS__)
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#else
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int asprintf(char** __restrict, const char* __restrict, ...)
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__attribute__((__format__ (printf, 2, 3)));
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#endif
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void clearerr_unlocked(FILE* stream);
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int feof_unlocked(FILE* stream);
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int ferror_unlocked(FILE* stream);
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int fflush_unlocked(FILE* stream);
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int fileno_unlocked(FILE* stream);
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int fgetc_unlocked(FILE* stream);
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char* fgets_unlocked(char* __restrict, int, FILE* __restrict);
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int fputc_unlocked(int c, FILE* stream);
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int fputs_unlocked(const char* __restrict, FILE* __restrict stream);
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size_t fread_unlocked(void* __restrict ptr, size_t size, size_t nitems, FILE* __restrict stream);
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size_t fwrite_unlocked(const void* __restrict ptr, size_t size, size_t nitems, FILE* __restrict stream);
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#ifdef __TRACE_ALLOCATION_SITES
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int vasprintf_trace(struct __allocation_site*, char** __restrict, const char* __restrict, __gnuc_va_list)
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__attribute__((__format__ (printf, 3, 0)));
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#define vasprintf(a, ...) vasprintf_trace(ALLOCATION_SITE, (a), __VA_ARGS__)
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#else
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int vasprintf(char** __restrict, const char* __restrict, __gnuc_va_list)
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__attribute__((__format__ (printf, 2, 0)));
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#endif
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#endif
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/* Functions that are Sortix extensions. */
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#if __USE_SORTIX
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int fparsemode(const char*);
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int fpipe(FILE* pipes[2]);
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int fprintf_unlocked(FILE* __restrict stream, const char* __restrict format, ...)
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__attribute__((__format__ (printf, 2, 3)));
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int fscanf_unlocked(FILE* __restrict stream, const char* __restrict format, ... )
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__attribute__((__format__ (scanf, 2, 3)));
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int fseeko_unlocked(FILE* stream, off_t offset, int whence);
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off_t ftello_unlocked(FILE* stream);
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int removeat(int dirrfd, const char* path);
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int setvbuf_unlocked(FILE* __restrict stream, char* __restrict buf, int type, size_t size);
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char* sortix_gets(void);
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int sortix_puts(const char* str);
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int ungetc_unlocked(int c, FILE* stream);
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int vfprintf_unlocked(FILE* __restrict stream, const char* __restrict format, __gnuc_va_list ap)
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__attribute__((__format__ (printf, 2, 0)));
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int vfscanf_unlocked(FILE* __restrict stream, const char* __restrict format, __gnuc_va_list arg)
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__attribute__((__format__ (scanf, 2, 0)));
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#endif
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/* Functions that are Sortix extensions used for libc internal purposes. */
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#if __USE_SORTIX
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int fflush_stop_reading(FILE* fp);
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int fflush_stop_reading_unlocked(FILE* fp);
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int fflush_stop_writing(FILE* fp);
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int fflush_stop_writing_unlocked(FILE* fp);
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void fdeletefile(FILE* fp);
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void fregister(FILE* fp);
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void fresetfile(FILE* fp);
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void funregister(FILE* fp);
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FILE* fnewfile(void);
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int fshutdown(FILE* fp);
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#endif
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/* The backends for printf and scanf. */
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#if __USE_SORTIX
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int cbprintf(void*, size_t (*)(void*, const char*, size_t), const char*, ...)
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__attribute__((__format__ (printf, 3, 4)));
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int cbscanf(void*,
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int (*)(void*),
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int (*)(int, void*),
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const char* __restrict,
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...)
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__attribute__((__format__ (scanf, 4, 5)));
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int vcbprintf(void*,
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size_t (*)(void*, const char*, size_t),
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const char*,
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__gnuc_va_list)
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__attribute__((__format__ (printf, 3, 0)));
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int vcbscanf(void*,
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int (*)(void*),
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int (*)(int, void*),
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const char* __restrict,
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__gnuc_va_list)
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__attribute__((__format__ (scanf, 4, 0)));
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#endif
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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#if defined(__is_sortix_libc)
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#include <FILE.h>
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#endif
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#endif
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