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/*
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 * Copyright (c) 2005 Martin Decky
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 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 *
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 * - Redistributions of source code must retain the above copyright
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 *   notice, this list of conditions and the following disclaimer.
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 * - Redistributions in binary form must reproduce the above copyright
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 *   notice, this list of conditions and the following disclaimer in the
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 *   documentation and/or other materials provided with the distribution.
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 * - The name of the author may not be used to endorse or promote products
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 *   derived from this software without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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/** @addtogroup libc
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 * @{
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 */
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/** @file
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 */
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#ifndef LIBC_STDIO_H_
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#define LIBC_STDIO_H_
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#include <sys/types.h>
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#include <stdarg.h>
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#include <adt/list.h>
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#define EOF  (-1)
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/** Default size for stream I/O buffers */
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#define BUFSIZ 4096
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#define DEBUG(fmt, ...) \
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{ \
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    char buf[256]; \
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    int n = snprintf(buf, sizeof(buf), fmt, ##__VA_ARGS__); \
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    if (n > 0) \
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        (void) __SYSCALL3(SYS_KLOG, 1, (sysarg_t) buf, str_size(buf)); \
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}
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#ifndef SEEK_SET
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    #define SEEK_SET  0
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    #define SEEK_CUR  1
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    #define SEEK_END  2
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#endif
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enum _buffer_type {
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    /** No buffering */
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    _IONBF,
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    /** Line buffering */
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    _IOLBF,
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    /** Full buffering */
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    _IOFBF
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};
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typedef struct {
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    /** Linked list pointer. */
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    link_t link;
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    /** Underlying file descriptor. */
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    int fd;
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    /** Error indicator. */
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    int error;
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    /** End-of-file indicator. */
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    int eof;
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    /** Klog indicator */
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    int klog;
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    /** Phone to the file provider */
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    int phone;
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    /** Buffering type */
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    enum _buffer_type btype;
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    /** Buffer */
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    uint8_t *buf;
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    /** Buffer size */
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    size_t buf_size;
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    /** Buffer I/O pointer */
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    uint8_t *buf_head;
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} FILE;
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extern FILE *stdin;
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extern FILE *stdout;
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extern FILE *stderr;
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/* Character and string input functions */
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extern int fgetc(FILE *);
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extern char *fgets(char *, size_t, FILE *);
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extern int getchar(void);
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extern char *gets(char *, size_t);
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/* Character and string output functions */
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extern int fputc(wchar_t, FILE *);
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extern int fputs(const char *, FILE *);
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extern int putchar(wchar_t);
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extern int puts(const char *);
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/* Formatted string output functions */
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extern int fprintf(FILE *, const char*, ...);
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extern int vfprintf(FILE *, const char *, va_list);
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extern int printf(const char *, ...);
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extern int vprintf(const char *, va_list);
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extern int snprintf(char *, size_t , const char *, ...);
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extern int asprintf(char **, const char *, ...);
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extern int vsnprintf(char *, size_t, const char *, va_list);
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/* File stream functions */
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extern FILE *fopen(const char *, const char *);
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extern FILE *fdopen(int, const char *);
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extern int fclose(FILE *);
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extern size_t fread(void *, size_t, size_t, FILE *);
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extern size_t fwrite(const void *, size_t, size_t, FILE *);
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extern int fseek(FILE *, long, int);
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extern void rewind(FILE *);
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extern int ftell(FILE *);
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extern int feof(FILE *);
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extern int fflush(FILE *);
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extern int ferror(FILE *);
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extern void clearerr(FILE *);
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extern void setvbuf(FILE *, void *, int, size_t);
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/* Misc file functions */
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extern int rename(const char *, const char *);
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#endif
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/** @}
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 */