root/user/include/stdio.h

INCLUDED FROM

   1 /*
   2  * Copyright (c) 2000, 2001, 2002, 2003, 2004, 2005, 2008, 2009
   3  *      The President and Fellows of Harvard College.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. Neither the name of the University nor the names of its contributors
  14  *    may be used to endorse or promote products derived from this software
  15  *    without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE UNIVERSITY AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE UNIVERSITY OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  */
  30 #ifndef _STDIO_H_
  31 #define _STDIO_H_
  33 /*
  34  * Get the __-protected definition of va_list. We aren't supposed to
  35  * include stdarg.h here.
  36  */
  37 #include <kern/types.h>
  38 #include <types/size_t.h>
  39 #include <sys/null.h>
  41 /* Constant returned by a bunch of stdio functions on error */
  42 #define EOF (-1)
  44 /*
  45  * The actual guts of printf
  46  * (for libc internal use only)
  47  */
  48 int __vprintf(void (*sendfunc)(void *clientdata, const char *, size_t len),
  49               void *clientdata,
  50               const char *fmt,
__va_list ap);
  53 /* Printf calls for user programs */
  54 int printf(const char *fmt, ...);
  55 int vprintf(const char *fmt, __va_list ap);
  56 int snprintf(char *buf, size_t len, const char *fmt, ...);
  57 int vsnprintf(char *buf, size_t len, const char *fmt, __va_list ap);
  59 /* Print the argument string and then a newline. Returns 0 or -1 on error. */
  60 int puts(const char *);
  62 /* Like puts, but without the newline. Returns #chars written. */
  63 /* Nonstandard C, hence the __. */
  64 int __puts(const char *);
  66 /* Writes one character. Returns it. */
  67 int putchar(int);
  69 /* Reads one character (0-255) or returns EOF on error. */
  70 int getchar(void);
  72 #endif /* _STDIO_H_ */