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-rw-r--r--stdio/internals.c108
1 files changed, 58 insertions, 50 deletions
diff --git a/stdio/internals.c b/stdio/internals.c
index a1d1fa4..8c2acc4 100644
--- a/stdio/internals.c
+++ b/stdio/internals.c
@@ -16,7 +16,6 @@ License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
-#include <ansidecl.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
@@ -25,7 +24,8 @@ Cambridge, MA 02139, USA. */
/* Make sure that FP has its functions set. */
void
-DEFUN(__stdio_check_funcs, (fp), register FILE *fp)
+__stdio_check_funcs (fp)
+ register FILE *fp;
{
if (!fp->__seen)
{
@@ -34,7 +34,7 @@ DEFUN(__stdio_check_funcs, (fp), register FILE *fp)
If no buffer is set (and the stream is not made explicitly
unbuffered), we allocate a buffer below, using the bufsize
set by this function. */
- extern void EXFUN(__stdio_init_stream, (FILE *));
+ extern void __stdio_init_stream __P ((FILE *));
fp->__room_funcs = __default_room_functions;
fp->__io_funcs = __default_io_functions;
__stdio_init_stream (fp);
@@ -51,7 +51,8 @@ DEFUN(__stdio_check_funcs, (fp), register FILE *fp)
/* Figure out what kind of buffering (none, line, or full)
and what buffer size to give FP. */
static void
-DEFUN(init_stream, (fp), register FILE *fp)
+init_stream (fp)
+ register FILE *fp;
{
__stdio_check_funcs (fp);
@@ -69,13 +70,13 @@ DEFUN(init_stream, (fp), register FILE *fp)
save = errno;
while (fp->__bufsize >= MIN_BUFSIZE)
{
- fp->__buffer = (char *) malloc(fp->__bufsize);
+ fp->__buffer = (char *) malloc (fp->__bufsize);
if (fp->__buffer == NULL)
fp->__bufsize /= 2;
else
break;
}
- errno = save;
+ __set_errno (save);
if (fp->__buffer == NULL)
{
@@ -96,7 +97,8 @@ DEFUN(init_stream, (fp), register FILE *fp)
/* Determine the current file position of STREAM if it is unknown. */
int
-DEFUN(__stdio_check_offset, (stream), FILE *stream)
+__stdio_check_offset (stream)
+ FILE *stream;
{
init_stream (stream);
@@ -106,15 +108,15 @@ DEFUN(__stdio_check_offset, (stream), FILE *stream)
if (stream->__io_funcs.__seek == NULL)
{
/* Unknowable. */
- errno = ESPIPE;
+ __set_errno (ESPIPE);
return EOF;
}
else
{
/* Unknown. Find it out. */
fpos_t pos = (fpos_t) 0;
- if ((*stream->__io_funcs.__seek)(stream->__cookie,
- &pos, SEEK_CUR) < 0)
+ if ((*stream->__io_funcs.__seek) (stream->__cookie,
+ &pos, SEEK_CUR) < 0)
{
if (errno == ESPIPE)
/* Object is incapable of seeking. */
@@ -139,13 +141,14 @@ DEFUN(__stdio_check_offset, (stream), FILE *stream)
seeking as necessary and updating its `offset' field.
Sets ferror(FP) (and possibly errno) for errors. */
static void
-DEFUN(seek_to_target, (fp), FILE *fp)
+seek_to_target (fp)
+ FILE *fp;
{
int save = errno;
if (__stdio_check_offset (fp) == EOF)
{
if (errno == ESPIPE)
- errno = save;
+ __set_errno (save);
else
fp->__error = 1;
}
@@ -156,13 +159,13 @@ DEFUN(seek_to_target, (fp), FILE *fp)
if (fp->__io_funcs.__seek == NULL)
{
/* We can't seek! */
- errno = ESPIPE;
+ __set_errno (ESPIPE);
fp->__error = 1;
}
else
{
fpos_t pos = fp->__target;
- if ((*fp->__io_funcs.__seek)(fp->__cookie, &pos, SEEK_SET) < 0)
+ if ((*fp->__io_funcs.__seek) (fp->__cookie, &pos, SEEK_SET) < 0)
/* Seek failed! */
fp->__error = 1;
else
@@ -175,10 +178,10 @@ DEFUN(seek_to_target, (fp), FILE *fp)
#ifdef EGRATUITOUS
/* It happens in the Hurd when the io server doesn't
obey the protocol for io_seek. */
- errno = EGRATUITOUS;
+ __set_errno (EGRATUITOUS);
#else
/* I don't think this can happen in Unix. */
- errno = ESPIPE; /* ??? */
+ __set_errno (ESPIPE); /* ??? */
#endif
fp->__error = 1;
}
@@ -194,8 +197,9 @@ DEFUN(seek_to_target, (fp), FILE *fp)
flushed to avoid a system call for a single character.
This is the default `output room' function. */
static void
-DEFUN(flushbuf, (fp, c),
- register FILE *fp AND int c)
+flushbuf (fp, c)
+ register FILE *fp;
+ int c;
{
int flush_only = c == EOF;
size_t buffer_written;
@@ -223,21 +227,21 @@ DEFUN(flushbuf, (fp, c),
!fp->__mode.__append)
{
int save = errno;
- CONST int aligned = (fp->__buffer == NULL ||
- __stdio_check_offset(fp) == EOF ||
+ const int aligned = (fp->__buffer == NULL ||
+ __stdio_check_offset (fp) == EOF ||
fp->__target % fp->__bufsize == 0);
- errno = save;
+ __set_errno (save);
if (!aligned)
{
/* Move to a block (buffer size) boundary and read in a block.
Then the output will be written as a whole block, too. */
- CONST size_t o = fp->__target % fp->__bufsize;
+ const size_t o = fp->__target % fp->__bufsize;
fp->__target -= o;
- if ((*fp->__room_funcs.__input)(fp) == EOF && ferror(fp))
+ if ((*fp->__room_funcs.__input) (fp) == EOF && ferror (fp))
return;
else
- __clearerr(fp);
+ __clearerr (fp);
if (fp->__get_limit - fp->__buffer < o)
/* Oops. We didn't read enough (probably because we got EOF).
@@ -322,8 +326,8 @@ DEFUN(flushbuf, (fp, c),
if (!ferror(fp))
{
/* Write out the buffered data. */
- wrote = (*fp->__io_funcs.__write)(fp->__cookie, fp->__buffer,
- to_write);
+ wrote = (*fp->__io_funcs.__write) (fp->__cookie, fp->__buffer,
+ to_write);
if (wrote > 0)
{
if (fp->__mode.__append)
@@ -347,7 +351,7 @@ DEFUN(flushbuf, (fp, c),
fp->__bufp = fp->__buffer;
/* If we're not just flushing, write the last character, C. */
- if (!flush_only && !ferror(fp))
+ if (!flush_only && !ferror (fp))
{
if (fp->__buffer == NULL || (fp->__linebuf && (unsigned char) c == '\n'))
{
@@ -382,7 +386,7 @@ DEFUN(flushbuf, (fp, c),
fp->__get_limit = fp->__buffer;
}
- if (feof(fp) || ferror(fp))
+ if (feof (fp) || ferror (fp))
fp->__bufp = fp->__put_limit;
}
@@ -390,7 +394,8 @@ DEFUN(flushbuf, (fp, c),
/* Fill the buffer for FP and return the first character read (or EOF).
This is the default `input_room' function. */
static int
-DEFUN(fillbuf, (fp), register FILE *fp)
+fillbuf (fp)
+ register FILE *fp;
{
/* How far into the buffer we read we want to start bufp. */
size_t buffer_offset = 0;
@@ -435,13 +440,13 @@ DEFUN(fillbuf, (fp), register FILE *fp)
}
seek_to_target (fp);
}
- errno = save;
+ __set_errno (save);
}
- while (!ferror(fp) && !feof(fp) && nread <= buffer_offset)
+ while (!ferror (fp) && !feof (fp) && nread <= buffer_offset)
{
/* Try to fill the buffer. */
- int count = (*fp->__io_funcs.__read)(fp->__cookie, buffer, to_read);
+ int count = (*fp->__io_funcs.__read) (fp->__cookie, buffer, to_read);
if (count == 0)
fp->__eof = 1;
else if (count < 0)
@@ -460,7 +465,7 @@ DEFUN(fillbuf, (fp), register FILE *fp)
if (fp->__buffer == NULL)
/* There is no buffer, so return the character we read
without all the buffer pointer diddling. */
- return (feof(fp) || ferror(fp)) ? EOF : c;
+ return (feof (fp) || ferror (fp)) ? EOF : c;
/* Reset the buffer pointer to the beginning of the buffer
(plus whatever offset we may have set above). */
@@ -468,7 +473,7 @@ DEFUN(fillbuf, (fp), register FILE *fp)
end:;
- if (feof(fp) || ferror(fp))
+ if (feof (fp) || ferror (fp))
{
/* Set both end pointers to the beginning of the buffer so
the next i/o call will force a call to __fillbf/__flshfp. */
@@ -494,12 +499,12 @@ extern __io_write_fn __stdio_write;
extern __io_seek_fn __stdio_seek;
extern __io_close_fn __stdio_close;
extern __io_fileno_fn __stdio_fileno;
-CONST __io_functions __default_io_functions =
+const __io_functions __default_io_functions =
{
__stdio_read, __stdio_write, __stdio_seek, __stdio_close, __stdio_fileno
};
-CONST __room_functions __default_room_functions =
+const __room_functions __default_room_functions =
{
fillbuf, flushbuf
};
@@ -508,18 +513,19 @@ CONST __room_functions __default_room_functions =
/* Flush the buffer for FP and also write C if FLUSH_ONLY is nonzero.
This is the function used by putc and fflush. */
int
-DEFUN(__flshfp, (fp, c),
- register FILE *fp AND int c)
+__flshfp (fp, c)
+ register FILE *fp;
+ int c;
{
int flush_only = c == EOF;
- if (!__validfp(fp) || !fp->__mode.__write)
+ if (!__validfp (fp) || !fp->__mode.__write)
{
- errno = EINVAL;
+ __set_errno (EINVAL);
return EOF;
}
- if (ferror(fp))
+ if (ferror (fp))
return EOF;
if (fp->__pushed_back)
@@ -530,7 +536,7 @@ DEFUN(__flshfp, (fp, c),
}
/* Make sure the stream is initialized (has functions and buffering). */
- init_stream(fp);
+ init_stream (fp);
/* Do this early, so a `putc' on such a stream will never return success. */
if (fp->__room_funcs.__output == NULL)
@@ -589,14 +595,15 @@ DEFUN(__flshfp, (fp, c),
/* Fill the buffer for FP and return the first character read.
This is the function used by getc. */
int
-DEFUN(__fillbf, (fp), register FILE *fp)
+__fillbf (fp)
+ register FILE *fp;
{
register int c;
fpos_t new_target;
- if (!__validfp(fp) || !fp->__mode.__read)
+ if (!__validfp (fp) || !fp->__mode.__read)
{
- errno = EINVAL;
+ __set_errno (EINVAL);
return EOF;
}
@@ -609,7 +616,7 @@ DEFUN(__fillbf, (fp), register FILE *fp)
}
/* Make sure the stream is initialized (has functions and buffering). */
- init_stream(fp);
+ init_stream (fp);
/* If we're trying to read the first character of a new
line of input from an unbuffered or line buffered stream,
@@ -648,11 +655,11 @@ DEFUN(__fillbf, (fp), register FILE *fp)
fp->__target = new_target;
- if (ferror(fp))
+ if (ferror (fp))
c = EOF;
else if (fp->__room_funcs.__input != NULL)
{
- c = (*fp->__room_funcs.__input)(fp);
+ c = (*fp->__room_funcs.__input) (fp);
if (fp->__buffer == NULL)
/* This is an unbuffered stream, so the target sync above
won't do anything the next time around. Instead, note that
@@ -673,13 +680,14 @@ DEFUN(__fillbf, (fp), register FILE *fp)
/* Nuke a stream, but don't kill its link in the chain. */
void
-DEFUN(__invalidate, (stream), register FILE *stream)
+__invalidate (stream)
+ register FILE *stream;
{
/* Save its link. */
register FILE *next = stream->__next;
/* Pulverize the fucker. */
- memset((PTR) stream, 0, sizeof(FILE));
+ memset((void *) stream, 0, sizeof(FILE));
/* Restore the deceased's link. */
stream->__next = next;