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Use FOPEN_.. macros in calls to fopen().

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This commit is contained in:
Nick Clifton 2001-07-10 09:45:50 +00:00
parent c2a1a436ff
commit f740e790c7
7 changed files with 94 additions and 77 deletions
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77
gas/input-file.c
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@ -1,5 +1,5 @@
/* input_file.c - Deal with Input Files -
Copyright 1987, 1990, 1991, 1992, 1993, 1994, 1995, 1999, 2000
Copyright 1987, 1990, 1991, 1992, 1993, 1994, 1995, 1999, 2000, 2001
Free Software Foundation, Inc.
This file is part of GAS, the GNU Assembler.
@ -19,12 +19,10 @@
Software Foundation, 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA. */
/*
* Confines all details of reading source bytes to this module.
* All O/S specific crocks should live here.
* What we lose in "efficiency" we gain in modularity.
* Note we don't need to #include the "as.h" file. No common coupling!
*/
/* Confines all details of reading source bytes to this module.
All O/S specific crocks should live here.
What we lose in "efficiency" we gain in modularity.
Note we don't need to #include the "as.h" file. No common coupling! */
#include <stdio.h>
#include <string.h>
@ -35,34 +33,30 @@
static int input_file_get PARAMS ((char *, int));
/* This variable is non-zero if the file currently being read should be
preprocessed by app. It is zero if the file can be read straight in.
*/
preprocessed by app. It is zero if the file can be read straight in. */
int preprocess = 0;
/*
* This code opens a file, then delivers BUFFER_SIZE character
* chunks of the file on demand.
* BUFFER_SIZE is supposed to be a number chosen for speed.
* The caller only asks once what BUFFER_SIZE is, and asks before
* the nature of the input files (if any) is known.
*/
/* This code opens a file, then delivers BUFFER_SIZE character
chunks of the file on demand.
BUFFER_SIZE is supposed to be a number chosen for speed.
The caller only asks once what BUFFER_SIZE is, and asks before
the nature of the input files (if any) is known. */
#define BUFFER_SIZE (32 * 1024)
/*
* We use static data: the data area is not sharable.
*/
/* We use static data: the data area is not sharable. */
static FILE *f_in;
static char *file_name;
/* Struct for saving the state of this module for file includes. */
struct saved_file {
FILE *f_in;
char *file_name;
int preprocess;
char *app_save;
};
struct saved_file
{
FILE * f_in;
char * file_name;
int preprocess;
char * app_save;
};
/* These hooks accomodate most operating systems. */
@ -92,6 +86,7 @@ input_file_is_open ()
/* Push the state of our input, returning a pointer to saved info that
can be restored with input_file_pop (). */
char *
input_file_push ()
{
@ -105,7 +100,8 @@ input_file_push ()
if (preprocess)
saved->app_save = app_push ();
input_file_begin (); /* Initialize for new file */
/* Initialize for new file. */
input_file_begin ();
return (char *) saved;
}
@ -116,7 +112,7 @@ input_file_pop (arg)
{
register struct saved_file *saved = (struct saved_file *) arg;
input_file_end (); /* Close out old file */
input_file_end (); /* Close out old file. */
f_in = saved->f_in;
file_name = saved->file_name;
@ -140,7 +136,7 @@ input_file_open (filename, pre)
assert (filename != 0); /* Filename may not be NULL. */
if (filename[0])
{ /* We have a file name. Suck it and see. */
f_in = fopen (filename, "r");
f_in = fopen (filename, FOPEN_RT);
file_name = filename;
}
else
@ -157,7 +153,8 @@ input_file_open (filename, pre)
c = getc (f_in);
if (c == '#')
{ /* Begins with comment, may not want to preprocess */
{
/* Begins with comment, may not want to preprocess. */
c = getc (f_in);
if (c == 'N')
{
@ -165,7 +162,7 @@ input_file_open (filename, pre)
if (!strcmp (buf, "O_APP\n"))
preprocess = 0;
if (!strchr (buf, '\n'))
ungetc ('#', f_in); /* It was longer */
ungetc ('#', f_in); /* It was longer. */
else
ungetc ('\n', f_in);
}
@ -179,13 +176,14 @@ input_file_open (filename, pre)
}
/* Close input file. */
void
input_file_close ()
{
/* Don't close a null file pointer. */
if (f_in != NULL)
{
fclose (f_in);
} /* don't close a null file pointer */
fclose (f_in);
f_in = 0;
}
@ -218,12 +216,10 @@ input_file_give_next_buffer (where)
if (f_in == (FILE *) 0)
return 0;
/*
* fflush (stdin); could be done here if you want to synchronise
* stdin and stdout, for the case where our input file is stdin.
* Since the assembler shouldn't do any output to stdout, we
* don't bother to synch output and input.
*/
/* fflush (stdin); could be done here if you want to synchronise
stdin and stdout, for the case where our input file is stdin.
Since the assembler shouldn't do any output to stdout, we
don't bother to synch output and input. */
if (preprocess)
size = do_scrub_chars (input_file_get, where, BUFFER_SIZE);
else
@ -242,5 +238,6 @@ input_file_give_next_buffer (where)
f_in = (FILE *) 0;
return_value = 0;
}
return (return_value);
return return_value;
}