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-rw-r--r--include/stdio.h70
1 files changed, 38 insertions, 32 deletions
diff --git a/include/stdio.h b/include/stdio.h
index 5e3982416..d98adea15 100644
--- a/include/stdio.h
+++ b/include/stdio.h
@@ -43,9 +43,9 @@ struct __stdio_file {
int fd; /* the file descriptor associated with the stream */
int mode;
- char unbuf[8]; /* The buffer for 'unbuffered' streams */
-
struct __stdio_file * next;
+
+ char unbuf[8]; /* The buffer for 'unbuffered' streams */
};
typedef struct __stdio_file FILE;
@@ -65,7 +65,6 @@ typedef struct __stdio_file FILE;
#define _IONBF 2 /* No buffering. */
/* Possible states for a file stream -- internal use only */
-#define __MODE_IOTRAN 0
#define __MODE_BUF 0x03 /* Modal buffering dependent on isatty */
#define __MODE_FREEBUF 0x04 /* Buffer allocated with malloc, can free */
#define __MODE_FREEFIL 0x08 /* FILE allocated with malloc, can free */
@@ -78,18 +77,12 @@ typedef struct __stdio_file FILE;
#define __MODE_ERR 0x200 /* Error status */
#define __MODE_UNGOT 0x400 /* Buffer has been polluted by ungetc */
-
/* The possibilities for the third argument to `fseek'.
These values should not be changed. */
#define SEEK_SET 0 /* Seek from beginning of file. */
#define SEEK_CUR 1 /* Seek from current position. */
#define SEEK_END 2 /* Seek from end of file. */
-
-#define stdio_pending(fp) ((fp)->bufread>(fp)->bufpos)
-
-
-
/* Default path prefix for `tempnam' and `tmpnam'. */
#define P_tmpdir "/tmp"
/* Get the values:
@@ -153,44 +146,43 @@ extern int fclose __P ((FILE *__stream));
/* Flush STREAM, or all streams if STREAM is NULL. */
extern int fflush __P ((FILE *__stream));
-/* Open a file and create a new stream for it. */
-extern FILE *fopen __P ((__const char *__restrict __filename,
- __const char *__restrict __modes));
/* Used internally to actuall open files */
extern FILE *__fopen __P((__const char *__restrict __filename, int __fd,
- FILE *__restrict __stream, __const char *__restrict __modes));
+ FILE *__restrict __stream, __const char *__restrict __mode));
+/* Open a file and create a new stream for it. */
+extern FILE *fopen __P ((__const char *__restrict __filename,
+ __const char *__restrict __mode));
#define fopen(__file, __mode) __fopen((__file), -1, (FILE*)0, (__mode))
/* Open a file, replacing an existing stream with it. */
extern FILE *freopen __P ((__const char *__restrict __filename,
- __const char *__restrict __modes,
+ __const char *__restrict __mode,
FILE *__restrict __stream));
#define freopen(__file, __mode, __fp) __fopen((__file), -1, (__fp), (__mode))
#ifdef __USE_LARGEFILE64
extern FILE *fopen64 __P ((__const char *__restrict __filename,
- __const char *__restrict __modes));
+ __const char *__restrict __mode));
extern FILE *freopen64 __P ((__const char *__restrict __filename,
- __const char *__restrict __modes,
+ __const char *__restrict __mode,
FILE *__restrict __stream));
#endif
#ifdef __USE_POSIX
/* Create a new stream that refers to an existing system file descriptor. */
-extern FILE *fdopen __P ((int __fd, __const char *__modes));
+extern FILE *fdopen __P ((int __fd, __const char *__mode));
#define fdopen(__file, __mode) __fopen((char*)0, (__file), (FILE*)0, (__mode))
#endif
-/* If BUF is NULL, make STREAM unbuffered.
- Else make it use buffer BUF, of size BUFSIZ. */
-extern void setbuf __P ((FILE *__restrict __stream, char *__restrict __buf));
-#define setbuf(__fp, __buf) setbuffer((__fp), (__buf), BUFSIZ)
-
/* Make STREAM use buffering mode MODE.
If BUF is not NULL, use N bytes of it for buffering;
else allocate an internal buffer N bytes long. */
extern int setvbuf __P ((FILE *__restrict __stream, char *__restrict __buf,
- int __modes, size_t __n));
+ int __mode, size_t __n));
+
+/* If BUF is NULL, make STREAM unbuffered.
+ Else make it use buffer BUF, of size BUFSIZ. */
+extern void setbuf __P ((FILE *__restrict __stream, char *__restrict __buf));
#ifdef __USE_BSD
/* If BUF is NULL, make STREAM unbuffered.
@@ -200,7 +192,6 @@ extern void setbuffer __P ((FILE *__restrict __stream, char *__restrict __buf,
/* Make STREAM line-buffered. */
extern void setlinebuf __P ((FILE *__stream));
-#define setlinebuf(__fp) setvbuf((__fp), (char*)0, _IOLBF, 0)
#endif
@@ -279,7 +270,7 @@ extern int getc __P ((FILE *__stream));
/* Read a character from stdin. */
extern int getchar __P ((void));
-#define getchar() getc(stdin)
+#define getchar() getc(_stdin)
/* The C standard explicitly says this is a macro, so be that way */
#define getc(stream) \
@@ -292,7 +283,8 @@ extern int putc __P ((int __c, FILE *__stream));
/* Write a character to stdout. */
extern int putchar __P ((int __c));
-#define putchar(c) putc((c), stdout)
+/* Beware! stdout can be redefined! */
+#define putchar(c) putc((c), _stdout)
/* The C standard explicitly says this can be a macro, so be that way */
#define putc(c, stream) \
@@ -354,12 +346,13 @@ extern size_t fread __P ((void *__restrict __ptr, size_t __size,
extern size_t fwrite __P ((__const void *__restrict __ptr, size_t __size,
size_t __n, FILE *__restrict __s));
+/* Rewind to the beginning of STREAM. */
+extern void rewind __P ((FILE *__stream));
+
/* Seek to a certain position on STREAM. */
extern int fseek __P ((FILE *__stream, long int __off, int __whence));
/* Return the current position of STREAM. */
extern long int ftell __P ((FILE *__stream));
-/* Rewind to the beginning of STREAM. */
-extern void rewind __P ((FILE *__stream));
/* The Single Unix Specification, Version 2, specifies an alternative,
more adequate interface for the two functions above which deal with
@@ -377,15 +370,27 @@ typedef __off64_t off64_t;
# define off64_t off64_t
#endif
+#ifndef fpos_t
+typedef off_t fpos_t;
+#define fpos_t fpos_t
+#endif
+
+/* Seek to a certain position on STREAM. */
+extern int fsetpos __P((FILE *__stream, __const fpos_t *__pos));
+/* Return the current position of STREAM. */
+extern int fgetpos __P((FILE *__stream, fpos_t *__pos));
/* Clear the error and EOF indicators for STREAM. */
extern void clearerr __P ((FILE *__stream));
-#define clearerr(fp) ((fp)->mode &= ~(__MODE_EOF|__MODE_ERR),0)
/* Return the EOF indicator for STREAM. */
extern int feof __P ((FILE *__stream));
-#define feof(fp) (((fp)->mode&__MODE_EOF) != 0)
/* Return the error indicator for STREAM. */
extern int ferror __P ((FILE *__stream));
+
+/* Macro versions of the 3 previous functions */
+/* If fp is NULL... */
+#define clearerr(fp) ((fp)->mode &= ~(__MODE_EOF|__MODE_ERR), (void)0)
+#define feof(fp) (((fp)->mode&__MODE_EOF) != 0)
#define ferror(fp) (((fp)->mode&__MODE_ERR) != 0)
/* Print a message describing the meaning of the value of errno. */
@@ -399,13 +404,14 @@ extern __const char *__const sys_errlist[];
#ifdef __USE_POSIX
/* Return the system file descriptor for STREAM. */
extern int fileno __P ((FILE *__stream));
-#define fileno(fp) ((fp)->fd)
+/* Only use the macro below if you know fp is a valid FILE for a valid fd. */
+#define __fileno(fp) ((fp)->fd)
#endif /* Use POSIX. */
#if (defined __USE_POSIX2 || defined __USE_SVID || defined __USE_BSD || \
defined __USE_MISC)
/* Create a new stream connected to a pipe running the given command. */
-extern FILE *popen __P ((__const char *__command, __const char *__modes));
+extern FILE *popen __P ((__const char *__command, __const char *__mode));
/* Close a stream opened by popen and return the status of its child. */
extern int pclose __P ((FILE *__stream));
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