-/* ----------------------------------------------------------------------------
- * $Id$
- * ----------------------------------------------------------------------------
- * Public Domain C Library - http://pdclib.sourceforge.net
- * This code is Public Domain. Use, modify, and redistribute at will.
- * ----------------------------------------------------------------------------
- * Input/output
- * --------------------------------------------------------------------------*/
+/* $Id$ */
-#ifndef _STDIO_H
-#define _STDIO_H _STDIO_H
+/* Input/output <stdio.h>
-#ifndef _NULL
-#include "__intern.h"
-#endif /* _NULL */
-
-/* ----------------------------------------------------------------------------
- * MACROS
- * --------------------------------------------------------------------------*/
-
-#define NULL _NULL
-
-#define _IOFBF 0 // @see setvbuf()
-#define _IOLBF 1 // @see setvbuf()
-#define _IONBF 2 // @see setvbuf()
-
-#define SEEK_SET 0 // @see fseek()
-#define SEEK_CUR 1 // @see fseek()
-#define SEEK_END 2 // @see fseek()
-
-#define EOF -1
+ This file is part of the Public Domain C Library (PDCLib).
+ Permission is granted to use, modify, and / or redistribute at will.
+*/
-/* ----------------------------------------------------------------------------
- * TYPEDEFS
- * --------------------------------------------------------------------------*/
+#ifndef _PDCLIB_STDIO_H
+#define _PDCLIB_STDIO_H _PDCLIB_STDIO_H
-#ifndef _SIZE_T
-#define _SIZE_T _SIZE_T
-typedef __size_t size_t
-#endif /* _SIZE_T */
+#ifndef _PDCLIB_INT_H
+#define _PDCLIB_INT_H _PDCLIB_INT_H
+#include <_PDCLIB_int.h>
+#endif
-/* file position, buffer pointer, ErrorIndicator, EOFIndicator, HostRC */
-typedef FILE; /* TODO */
+#ifndef _PDCLIB_SIZE_T_DEFINED
+#define _PDCLIB_SIZE_T_DEFINED _PDCLIB_SIZE_T_DEFINED
+typedef _PDCLIB_size_t size_t;
+#endif
-/* file position */
-typedef fpos_t; /* TODO */
+#ifndef _PDCLIB_NULL_DEFINED
+#define _PDCLIB_NULL_DEFINED _PDCLIB_NULL_DEFINED
+#define NULL _PDCLIB_NULL
+#endif
-extern FILE * stdin;
-extern FILE * stdout;
-extern FILE * stderr;
+/* See setvbuf(), third argument */
+/* Fully buffered - transmit block-wise */
+#define _IOFBF 1
+/* Line buffered - transmit line-wise */
+#define _IOLBF 2
+/* Not buffered - transmit immediately */
+#define _IONBF 4
-/* ----------------------------------------------------------------------------
- * FUNCTIONS
- * --------------------------------------------------------------------------*/
+/* See setbuf(). Minimum 256. */
+#define BUFSIZ 1024
-/* TABLE OF CONTENTS (in order of appearance)
- *
- * General File Handling
- * * fopen()
- * * freopen()
- * * fflush()
- * * feof()
- * * ferror()
- * * clearerr()
- * * fclose()
- *
- * Rename / Remove
- * * rename()
- * * remove()
- *
- * Temporary Files
- * * tmpfile()
- * * tmpnam()
- *
- * File Positioning
- * * fseek()
- * * rewind()
- * * ftell()
- * * fgetpos()
- * * fsetpos()
- *
- * Reading
- * * fgetc()
- * * getc()
- * * getchar()
- * * ungetc()
- * * fgets()
- * * gets()
- *
- * Writing
- * * fputc()
- * * putc()
- * * putchar()
- * * fputs()
- * * puts()
- *
- * Formatted Reading
- * * fscanf()
- * * scanf()
- * * sscanf()
- * * vfscanf()
- * * vscanf()
- * * vsscanf()
- *
- * Formatted Writing
- * * fprintf()
- * * printf()
- * * sprintf()
- * * snprintf()
- * * vfprintf()
- * * vprintf()
- * * vsprintf()
- * * vsnprintf()
- *
- * Special
- * * perror()
- *
- * Binary Read / Write
- * * fread()
- * * fwrite()
- *
- * Buffer Handling
- * * setvbuf()
- * * setbuf()
- *
- */
+/* Internal-only flags for representing mode */
+#define _PDCLIB_FREAD 1
+#define _PDCLIB_FWRITE 2
+#define _PDCLIB_FAPPEND 4
+#define _PDCLIB_FRW 8
+#define _PDCLIB_FBIN 16
-/** File OPEN. Opens a file.
- * @param filename Name of the file.
- * @param mode One of r, w, a, rb, wb, ab, r+, w+, a+, rb+, wb+, ab+,
- * specifying which mode to open the file in.
- * @return A file handle associated with the opened file, NULL if failed.
- */
-FILE * fopen( const char * restrict filename, const char * restrict mode );
+typedef struct _PDCLIB_file_t FILE;
+typedef _PDCLIB_fpos_t fpos_t;
-/** File REOPEN. Opens the file specified by the given name, associating it
- * with the given file handle. If filename is NULL, it is attempted to change
- * the mode of the already opened file associated with the given file handle.
- * (This function can e.g. be used to reassociate stdin / stdout / stderr with
- * a filename.)
- * @param filename Name of the file to be opened.
- * @param mode One of r, w, a, rb, wb, ab, r+, w+, a+, rb+, wb+, ab+,
- * specifying which mode to open the file in.
- * @param fh The file handle to associate with the opened file.
- * @return fh if successful, NULL if failed.
- */
-FILE * freopen( const char * restrict filename, const char * restrict mode, FILE * fh );
+/* Must be integer and of negative value */
+#define EOF -1
-/** File FLUSH. Flushes any output buffers of a file. If parameter is NULL,
- * flushes output buffers for all file handles. The function is undefined for
- * input streams or update streams when the last operation was input.
- * @param fh The file handle.
- * @return 0 if successful, EOF on write error (setting error indicator).
- */
-int fflush( FILE * fh );
+/* Maximum number of files this implementation can open simultaneously. Minimum 8. */
+#define FOPEN_MAX 1
-/** File EOF. Tests whether EOF is set for a given file.
- * @param fh The file handle.
- * @return 0 if EOF is not set, non-zero if EOF is set.
- */
-int feof( FILE * fh );
+/* Maximum file name length (plus terminating \0) this implementation does
+ guarantee can be opened. If there is no limit on the length of filenames,
+ this should be a recommended size for filename buffers.
+*/
+#define FILENAME_MAX 1024
-/** File ERROR. Tests whether error indicator is set for a given file.
- * @param fh The file handle.
- * @return 0 if error indicator is not set, non-zero if set.
- */
-int ferror( FILE * fh );
+/* Buffer size for tmpnam() */
+#define L_tmpnam 1024
-/** CLEAR ERRor. Clears EOF and error indicator of a FILE handle.
- * @param fh The file handle.
- */
-void clearerr( FILE * fh );
+/* Number of distinct file names that can be generated by tmpnam(). */
+#define TMP_MAX 50
-/** File CLOSE. Flushes any output buffers, closes the file, frees internal
- * buffers, and discards the file handle.
- * @param fh The file handle.
- * @return 0 if successful, non-zero if failed. (In any case, the file handle
- * is invalid afterwards.)
- */
-int fclose( FILE * fh );
+/* See fseek(), third argument */
+#define SEEK_CUR 1
+#define SEEK_END 2
+#define SEEK_SET 4
-/* ------------------------------------------------------------------------- */
+typedef struct
+{
+ _PDCLIB_fd_t handle; /* OS-specific file descriptor */
+ _PDCLIB_fpos_t position; /* file position indicator */
+ void * buffer; /* file buffer */
+ size_t bufsize; /* size of buffer */
+ int status; /* misc. status bits */
+ /*mbstate_t mbstate;*//* multibyte parse state */ /* TODO: Unmask. */
+ FILE * next; /* provisions for linked list handling */
+} FILE;
-/** RENAME file. Causes a file to be no longer accessible under a given name,
- * but a new name instead.
- * @param filename Name of the file.
- * @param newname New file name.
- * @return 0 if successful, non-zero if failed. (This implementation: INT_MAX
- * if newname already exists; INT_MIN if filename could not be found;
- * EOF if filename is a currently open file.)
- */
-int rename( const char * filename, const char * newname );
+/* Text-mode I/O is at liberty to skip non-printing characters and trailing spaces.
+ Binary I/O is at liberty to add trailing zero bytes.
+ First operation decides "orientation" of the stream (wide / byte).
+ freopen() removes orientation; see also fwide().
+ Binary wide-oriented streams have the file-positioning restrictions ascribed to both text and binary streams.
+ For wide-oriented streams, after a successful call to a file-positioning function that leaves the file position indicator prior to the end-of-file, a wide character output function can overwrite a partial multibyte character; any file contents beyond the byte(s) written are henceforth indeterminate.
+ Whether a file of zero length (unwritten-to) actually exists is implementation-defined.
+ Wide text input from file: fgetwc() / mbrtowc()
+ Wide text output to file: wcrtomb() / fputwc()
+ Multibyte encoding in file may contain embedded null bytes
+ Multibyte encoding in file need not begin / end in initial shift state.
+ Conversion may trigger EILSEQ.
+*/
-/** REMOVE file. Causes a file to be no longer accessible under a given name.
- * @param filename Name of the file.
- * @return 0 if successful, non-zero if failed. (This implementation: INT_MAX
- * if the file is currently open.)
- */
+/* Operations on files */
int remove( const char * filename );
-
-/* ------------------------------------------------------------------------- */
-
-/** TeMPorary FILE. Opens a previously non-existend file in "wb+" mode that
- * will be automatically deleted when closed, or when the program terminates.
- * (This implementation: If program terminates abnormally, file is not
- * deleted.)
- * @return A file handle for the temporary file. (NULL if opening failed.)
- */
-FILE * tmpfile( void )
-
-/** TeMPorary NAMe. Generates a file name that does not yet exist in the file
- * system, and is different from the last call to the function. Note that a
- * file generated with this name is not "temporary", and must be remove()d
- * normally.
- * @param filename NULL, or a char[ L_tmpnam ] array. (Beware, calling this
- * function with a NULL parameter is not thread-safe.)
- * @return If 'filename' is NULL, a pointer to an internal static buffer
- * holding the generated name. If 'filename' is not null, the
- * generated name is stored in 'filename', and 'filename' is returned.
- * If the filename generation fails, function returns NULL.
- */
-char * tmpnam( char * filename );
-
-/* ------------------------------------------------------------------------- */
-
-/** File SEEK. Sets the current position in a file to the values specified by
- * start and offset.
- * @param fh The file handle.
- * @param offset The offset from 'start' to position to.
- * @param start The starting point from which to calculate the offset. May be
- * one of SEEK_SET, SEEK_CUR, SEEK_END.
- * @return 0 if successful, non-zero if error encountered.
- */
-int fseek( FILE * fh, long offset, int start );
-
-/** REWIND file. Equivalent to (void) fseek( fh, 0, SEEK_SET ).
- * @param fh The file handle.
- */
-void rewind( FILE * fh );
-
-/** File TELL position. Tells the current offset into a given file.
- * @param fh The file handle.
- * @return The offset into the file.
- */
-long ftell( FILE * fh );
-
-/** File GET POSition. Stores the current state and position in a file.
- * @param fh The file handle.
- * @param pos The object to store the current state in.
- * @return 0 if successful, non-zero if error encountered.
- */
-int fgetpos( FILE * restrict fh, fpos_t * restrict pos );
-
-/** File SET POSition. Sets the current file position to the value stored in a
- * given fpos_t object.
- * @param fh The file handle.
- * @param pos The fpos_t object.
- * @return 0 if successful, non-zero if error encountered.
- */
-int fsetpos( FILE * fh, const fpos_t * pos );
-
-/* ------------------------------------------------------------------------- */
-
-/** File GET Character. Reads a character from file.
- * @param fh The file handle.
- * @return The next character in the file, as unsigned char converted to int,
- * or EOF if end of file is reached.
- */
-int fgetc( FILE * fh );
-
-/** GET Character. Equivalent to fgetc(), but may be implemented as macro, and
- * is allowed to evaluate its parameter more than once.
- * @param fh The file handle.
- * @return The character read, or EOF if end of file / error encountered.
- */
-int getc( FILE * fh );
-
-/** GET CHARacter. Equivalent to getc( stdin ).
- * @return The character read, or EOF if end of file / error encountered.
- */
+int rename( const char * old, const char * new );
+FILE * tmpfile( void ); /* TODO: Implement. */
+char * tmpnam( char * s ); /* TODO: Implement. */
+
+/* File access functions */
+int fclose( FILE * stream );
+int fflush( FILE * stream );
+FILE * fopen( const char * _PDCLIB_restrict filename, const char * _PDCLIB_restrict mode );
+FILE * freopen( const char * _PDCLIB_restrict filename, const char * _PDCLIB_restrict mode, FILE * _PDCLIB_restrict stream );
+void setbuf( FILE * _PDCLIB_restrict stream, char * _PDCLIB_restrict buf );
+int setvbuf( FILE * _PDCLIB_restrict stream, char * _PDCLIB_restrict buf, int mode, size_t size );
+
+/* Formatted input/output functions */
+int fprintf( FILE * _PDCLIB_restrict stream, const char * _PDCLIB_restrict format, ... );
+int fscanf( FILE * _PDCLIB_restrict stream, const char * _PDCLIB_restrict format, ... );
+int printf( const char * _PDCLIB_restrict format, ... );
+int scanf( const char * _PDCLIB_restrict format, ... );
+int snprintf( char * _PDCLIB_restrict s, size_t n, const char * _PDCLIB_restrict format, ... );
+int sprintf( char * _PDCLIB_restrict s, const char * _PDCLIB_restrict format, ... );
+int sscanf( const char * _PDCLIB_restrict s, const char * _PDCLIB_restrict format, ... );
+int vfprintf( FILE * _PDCLIB_restrict stream, const char * _PDCLIB_restrict format, _PDCLIB_va_list arg );
+int vfscanf( FILE * _PDCLIB_restrict stream, const char * _PDCLIB_restrict format, _PDCLIB_va_list arg );
+int vprintf( const char * _PDCLIB_restrict format, _PDCLIB_va_list arg );
+int vscanf( const char * _PDCLIB_restrict format, _PDCLIB_va_list arg );
+int vsnprintf( char * _PDCLIB_restrict s, size_t n, const char * _PDCLIB_restrict format, _PDCLIB_va_list arg );
+int vsprintf( char * _PDCLIB_restrict s, const char * _PDCLIB_restrict format, _PDCLIB_va_list arg );
+int vsscanf( const char * _PDCLIB_restrict s, const char * _PDCLIB_restrict format, _PDCLIB_va_list arg );
+
+/* Character input/output functions */
+int fgetc( FILE * stream );
+char * fgets( char * _PDCLIB_restrict s, int n, FILE * _PDCLIB_restrict stream );
+int fputc( int c, FILE * stream );
+int fputs( const char * _PDCLIB_restrict s, FILE * _PDCLIB_restrict stream );
+int getc( FILE * stream );
int getchar( void );
-
-/** UN-GET Character. Puts a character back into an input stream.
- * @param c The character to put back.
- * @param fh The file handle.
- * @return The character put back, EOF if error encountered.
- */
-int ungetc( int c, FILE * fh );
-
-/** File GET String. Reads a line (terminated by newline character) from file,
- * but reading no more than n characters.
- * @param dest The char array to write into.
- * @param n The maximum number of characters to read.
- * @param fh The file handle.
- * @return 'dest', or NULL if an error occurred.
- */
-char * fgets( char * restrict dest, int n, FILE * restrict fh );
-
-/** GET String. Equivalent to fgets( dest, stdin ).
- * @param dest The character array to write to.
- * @return 'dest', or NULL if an error occurred.
- */
-char * gets( char * dest );
-
-/* ------------------------------------------------------------------------- */
-
-/** File PUT Character. Writes a character to file.
- * @param c The character (when converted to unsigned char) to write.
- * @param fh The file handle.
- * @return 'c', or EOF if an error occurred.
- */
-int fputc( int c, FILE * fh );
-
-/** PUT Character. Equivalent to fputc( c, stdout ), but may be implemented as
- * a macro, and may evaluate the file handle more than once.
- * @param c The character to write.
- * @param fh The file handle.
- * @return The character written, or EOF if error encountered.
- */
-int putc( int c, FILE * fh );
-
-/** PUT CHARacter. Equivalent to putc( c, stdout ).
- * @param c The character to write.
- * @return The character written, or EOF if error encountered.
- */
+char * gets( char * s );
+int putc( int c, FILE * stream );
int putchar( int c );
+int puts( const char * s );
+int ungetc( int c, FILE * stream );
+
+/* Direct input/output functions */
+size_t fread( void * _PDCLIB_restrict ptr, size_t size, size_t nmemb, FILE * _PDCLIB_restrict stream );
+size_t fwrite( const void * _PDCLIB_restrict ptr, size_t size, size_t nmemb, FILE * _PDCLIB_restrict stream );
+
+/* File positioning functions */
+int fgetpos( FILE * _PDCLIB_restrict stream, fpos_t * _PDCLIB_restrict pos );
+int fseek( FILE * stream, long int offset, int whence );
+int fsetpos( FILE * stream, const fpos_t * pos );
+long int ftell( FILE * stream );
+void rewind( FILE * stream );
+
+/* Error-handling functions */
+void clearerr( FILE * stream );
+int feof( FILE * stream );
+int ferror( FILE * stream );
+void perror( const char * s );
-/** File PUT String. Writes a C string to file.
- * @param src The string to write.
- * @param fh The file handle.
- * @return >= 0 if successful, or EOF if an error occurred.
- */
-int fputs( const char * restrict src, FILE * restrict fh );
-
-/** PUT String. Write a C string to stdout.
- * @param src The C string to write.
- * @return >= 0 if successful, EOF if error encountered.
- */
-int puts( const char * src );
-
-/* ------------------------------------------------------------------------- */
-
-/** File SCAN Formatted. Reads from given file handle, under control of a
- * formatting string, the values of variables pointed to by 0..n pointers.
- * @param fh The file handle.
- * @param format The formatting string.
- * @param ... A list of 0..n pointers corresponding to placeholders in
- * 'format'.
- * @return EOF if failed, number of values successfully assigned otherwise.
- */
-int fscanf( FILE * restrict fh, const char * restrict format, ... );
-
-/** SCAN Formatted. Equivalent to fscanf( stdin, format, ... )
- * @param format The formatting string.
- * @param ... A list of 0..n pointers corresponding to placeholders in
- * 'format'.
- * @return EOF if failed, number of values successfully assigned otherwise.
- */
-int scanf( const char * restrict format, ... );
-
-/** String SCAN Formatted. Equivalent to scanf( format, ... ), but using a C
- * string instead of a file handle for input.
- * @param src The input string.
- * @param format The formatting string.
- * @param ... A list of 0..n pointers corresponding to placeholders in
- * 'format'.
- * @return EOF if failed, number of values successfully assigned otherwise.
- */
-int sscanf( const char * restrict src, const char * restrict format, ... );
-
-/** Variable File SCAN Formatted. Equivalent to fscanf( fh, format, ... ),
- * with the variable-length parameter list replaced by a va_list, created by
- * the va_start macro.
- * @param fh The file handle.
- * @param format The formatting string.
- * @param args The argument list created by the va_start macro.
- * @return Number of characters printed.
- */
-int vfscanf( FILE * restrict fh, const char * restrict format, va_list args );
-
-/** Variable SCAN Formatted. Equivalent to vfscanf( stdin, format, args ).
- * @param format The formatting string.
- * @param args The argument list created by the va_start macro.
- * @return Number of characters printed.
- */
-int vscanf( const char * restrict format, va_list args );
-
-/** Variable String SCAN Formatted. Equivalent to vscanf( format, args ), but
- * reading from a C string instead of stdin.
- * @param src The C string to read from.
- * @param format The formatting string.
- * @param args The argument list created by the va_start macro.
- * @return Number of characters printed.
- */
-int vsscanf( const char * restrict src, const char * restrict format, va_list ap );
-
-/* ------------------------------------------------------------------------- */
-
-/** File PRINT Formatted. Prints to given file handle, under control of a
- * formatting string, the values of 0..n variables.
- * @param fh The file handle.
- * @param format The formatting string.
- * @param ... A list of 0..n variables corresponding to placeholders in
- * 'format'.
- * @return Number of characters printed, negative value if error occurred.
- */
-int fprintf( FILE * restrict fh, const char * restrict format, ... );
-
-/** PRINT Formatted. Equivalent to fprintf( stdout, format, ... ).
- * @param format The formatting string.
- * @param ... A list of 0..n variables corresponding to placeholders in
- * 'format'.
- * @return Number of characters printed.
- */
-int printf( const char * restrict format, ... );
-
-/** String PRINT Formatted. Equivalent to printf( format, ... ), but writing
- * to a char array instead of stdout.
- * @param dest The char array to write to.
- * @param format The formatting string.
- * @param ... A list of 0..n variables corresponding to placeholders in
- * 'format'.
- * @return Number of characters printed.
- */
-int sprintf( char * restrict dest, const char * restrict format, ... );
-
-/** String N PRINT Formatted. Equivalent to sprintf( dest, format, ... ), but
- * will not write more than n characters.
- * @param dest The char array to write to.
- * @param n The maximum number of characters to write.
- * @param format The formatting string.
- * @param ... A list of 0..n variables corresponding to placeholders in
- * 'format'.
- * @return Number of characters printed.
- */
-int snprintf( char * restrict s, size_t n, const char * restrict format, ... );
-
-/** Variable File PRINT Formatted. Equivalent to fprintf( fh, format, ... ),
- * with the variable-length parameter list replaced by a va_list, created by
- * the va_start macro.
- * @param fh The file handle.
- * @param format The formatting string.
- * @param args The argument list created by the va_start macro.
- * @return Number of characters printed.
- */
-int vfprintf( FILE * restrict fh, const char * restrict format, va_list args );
-
-/** Variable PRINT Formatted. Equivalent to vfprintf( stdout, format, args ).
- * @param format The formatting string.
- * @param args The argument list created by the va_start macro.
- * @return Number of characters printed.
- */
-int vprintf( const char * restrict format, va_list args );
-
-/** Variable String PRINT Formatted. Equivalent to vprintf( format, args ), but
- * writing to a char array instead to stdout.
- * @param dest The char array to write to.
- * @param format The formatting string.
- * @param args The argument list created by the va_start macro.
- * @return Number of characters printed.
- */
-int vsprintf( char * restrict s, const char * restrict format, va_list ap);
-
-/** Variable String N PRINT Formatted. Equivalent to vsprintf( dest, format,
- * args ), but will not write more than n characters.
- * @param dest The char array to write to.
- * @param n Maximum number of characters to write.
- * @param format The formatting string.
- * @param args The argument list created by the va_start macro.
- * @return Number of characters printed.
- */
-int vsnprintf( char * restrict dest, size_t n, const char * restrict format, va_list ap );
-
-/* ------------------------------------------------------------------------- */
-
-/** Print ERROR.
- * Equivalent to fprintf( stderr, "%s: %s\n", text, strerror( errno ) ).
- * @param test Text to prepend the error message with.
- */
-void perror( const char * text );
-
-/* ------------------------------------------------------------------------- */
-
-/** File READ. Reads a number of objects of a given size from file, and into
- * a memory area.
- * @param dest The memory area to write into.
- * @param size The size of one object.
- * @param n The number of objects to read.
- * @param fh The file handle.
- * @return The number of objects successfully read.
- */
-size_t fread( void * restrict dest, size_t size, size_t n, FILE * restrict fh );
-
-/** File WRITE. Writes a number of objects from a memory area to file.
- * @param src The memory area to write from.
- * @param size The size of a single object.
- * @param n The number of objects to write.
- * @param fh The file handle.
- * @return The number of objects successfully written.
- */
-size_t fwrite( const void * restrict src, size_t size, size_t n, FILE * restrict fh );
-
-/* ------------------------------------------------------------------------- */
-
-/** SET Virtual BUFfer. Sets buffering mode and (optionally) the memory used
- * for buffering, for a given file handle.
- * This function must only be called immediately after associating the file
- * handle with a file, before any operations are called on the file handle.
- * @param fh The file handle.
- * @param buf A pointer to the memory area to use for buffering, or NULL to
- * use internally assigned buffer memory.
- * @param mode One of _IOFBF, _IOLBF, _IONBF.
- * @param size Size of the memory area to be used for buffering.
- */
-int setvbuf( FILE * restrict fh, char * restrict buf, int mode, size_t size );
-
-/** SET BUFfer. Equivalent to (void) setvbuf( fh, buf, _IOFBF, BUFSIZ ), or
- * (void) setvbuf( fh, NULL, _IONBF, BUFSIZ ) if buf == NULL.
- * @param fh The file handle to be passed to setvbuf().
- * @param buf The buffer pointer to be passed to setvbuf().
- */
-void setbuf( FILE * restrict fh, char * restrict buf );
-
-/* ------------------------------------------------------------------------- */
-
-/* PDPC code - unreviewed
-/*
- What we have is an internal buffer, which is 8 characters
- longer than the actually used buffer. E.g. say BUFSIZ is
- 512 bytes, then we actually allocate 520 bytes. The first
- 2 characters will be junk, the next 2 characters set to NUL,
- for protection against some backward-compares. The fourth-last
- character is set to '\n', to protect against overscan. The
- last 3 characters will be junk, to protect against memory
- violation. intBuffer is the internal buffer, but everyone refers
- to fbuf, which is actually set to the &intBuffer[4]. Also,
- szfbuf is the size of the "visible" buffer, not the internal
- buffer. The reason for the 2 junk characters at the beginning
- is to align the buffer on a 4-byte boundary.
-*/
-
-typedef struct
-{
-#if (defined(__OS2__) || defined(__32BIT__))
- unsigned long hfile; /* OS/2 file handle */
#endif
-#if (defined(__MSDOS__) || defined(__DOS__) || defined(__POWERC))
- int hfile; /* dos file handle */
-#endif
-#if (defined(__MVS__))
- void *hfile;
- int recfm;
- int style;
- int lrecl;
- char ddname[9];
-#endif
- int quickBin; /* 1 = do DosRead NOW!!!! */
- int quickText; /* 1 = quick text mode */
- int textMode; /* 1 = text mode, 0 = binary mode */
- int intFno; /* internal file number */
- unsigned long bufStartR; /* buffer start represents, e.g. if we
- have read in 3 buffers, each of 512 bytes, and we are
- currently reading from the 3rd buffer, then the first
- character in the buffer would be 1024, so that is what is
- put in bufStartR. */
- char *fbuf; /* file buffer - this is what all the routines
- look at. */
- size_t szfbuf; /* size of file buffer (the one that the routines
- see, and the user allocates, and what is actually
- read in from disk) */
- char *upto; /* what character is next to read from buffer */
- char *endbuf; /* pointer PAST last character in buffer, ie it
- points to the '\n' in the internal buffer */
- int errorInd; /* whether an error has occurred on this file */
- int eofInd; /* whether EOF has been reached on this file */
- int ungetCh; /* character pushed back, -1 if none */
- int bufTech; /* buffering technique, _IOFBF etc */
- char *intBuffer; /* internal buffer */
- int noNl; /* When doing gets, we don't copy NL */
- int mode; /* __WRITE_MODE or __READ_MODE */
- int update; /* Is file update (read + write)? */
- int theirBuffer; /* Is the buffer supplied by them? */
-} FILE;
-
-#endif /* _STDIO_H */
projects / pdclib.old / blobdiff