ref: 4e2ee15fa101e23939f78f246754de558034fa40
dir: /src/utils/cst_file_stdio.c/
/*************************************************************************/
/* */
/* Cepstral, LLC */
/* Copyright (c) 2001 */
/* All Rights Reserved. */
/* */
/* Permission is hereby granted, free of charge, to use and distribute */
/* this software and its documentation without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of this work, and to */
/* permit persons to whom this work is furnished to do so, subject to */
/* the following conditions: */
/* 1. The code must retain the above copyright notice, this list of */
/* conditions and the following disclaimer. */
/* 2. Any modifications must be clearly marked as such. */
/* 3. Original authors' names are not deleted. */
/* 4. The authors' names are not used to endorse or promote products */
/* derived from this software without specific prior written */
/* permission. */
/* */
/* CEPSTRAL, LLC AND THE CONTRIBUTORS TO THIS WORK DISCLAIM ALL */
/* WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED */
/* WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL */
/* CEPSTRAL, LLC NOR THE CONTRIBUTORS BE LIABLE FOR ANY SPECIAL, */
/* INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER */
/* RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION */
/* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR */
/* IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
/* */
/*************************************************************************/
/* Author: David Huggins-Daines <dhd@cepstral.com> */
/* Date: August 2001 */
/*************************************************************************/
/* */
/* File I/O wrappers for normal platforms. */
/* Added support for urls (and libcurl) Nov 2011 (awb@cs.cmu.edu) */
/* */
/*************************************************************************/
#include <stdio.h>
#include <string.h>
#include <stdarg.h>
#include "cst_file.h"
#include "cst_string.h"
#include "cst_error.h"
#include "cst_alloc.h"
cst_file cst_fopen(const char *path, int mode)
{
char cmode[4];
if (cst_urlp(path))
return cst_url_open(path);
else if ((mode & CST_OPEN_WRITE) && (mode & CST_OPEN_READ))
strcpy(cmode, "r+");
else if ((mode & CST_OPEN_APPEND) && (mode & CST_OPEN_READ))
strcpy(cmode, "a+");
else if (mode & CST_OPEN_WRITE)
strcpy(cmode, "w");
else if (mode & CST_OPEN_APPEND)
strcpy(cmode, "a");
else if (mode & CST_OPEN_READ)
strcpy(cmode, "r");
/* Windows likes to make a distinction between binary and not */
/* While other operating systems do not -- we're going to always */
/* treat files as binary, because the non-binary Windows case is */
/* never what we want */
strcat(cmode, "b");
return fopen(path, cmode);
}
long cst_fwrite(cst_file fh, const void *buf, long size, long count)
{
return fwrite(buf, size, count, fh);
}
long cst_fread(cst_file fh, void *buf, long size, long count)
{
return fread(buf, size, count, fh);
}
long cst_filesize(cst_file fh)
{
/* FIXME: guaranteed to break on text files on Win32 */
long pos, epos;
pos = ftell(fh);
fseek(fh, 0, SEEK_END);
epos = ftell(fh);
fseek(fh, pos, SEEK_SET);
return epos;
}
int cst_fgetc(cst_file fh)
{
return fgetc(fh);
}
long cst_ftell(cst_file fh)
{
return ftell(fh);
}
long cst_fseek(cst_file fh, long pos, int whence)
{
int w = 0;
if (whence == CST_SEEK_ABSOLUTE)
w = SEEK_SET;
else if (whence == CST_SEEK_RELATIVE)
w = SEEK_CUR;
else if (whence == CST_SEEK_ENDREL)
w = SEEK_END;
fseek(fh, pos, w);
return ftell(fh);
}
int cst_fprintf(cst_file fh, const char *fmt, ...)
{
va_list args;
int rv;
va_start(args, fmt);
rv = vfprintf(fh, fmt, args);
va_end(args);
return rv;
}
int cst_sprintf(char *s, const char *fmt, ...)
{
va_list args;
int rv;
va_start(args, fmt);
rv = vsprintf(s, fmt, args);
va_end(args);
return rv;
}
int cst_fclose(cst_file fh)
{
return fclose(fh);
}