Commit 9ecea05b authored by Danny Mayer's avatar Danny Mayer
Browse files

stdio routines

parent fd61d0ca
/*
* Copyright (C) 2000 Internet Software Consortium.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM
* DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
* INTERNET SOFTWARE CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT,
* 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.
*/
/* $Id: stdio.c,v 1.2 2001/07/08 05:09:13 mayer Exp $ */
#include <config.h>
#include <io.h>
#include <errno.h>
#include <isc/stdio.h>
#include "errno2result.h"
isc_result_t
isc_stdio_open(const char *filename, const char *mode, FILE **fp) {
FILE *f;
f = fopen(filename, mode);
if (f == NULL)
return (isc__errno2result(errno));
*fp = f;
return (ISC_R_SUCCESS);
}
isc_result_t
isc_stdio_close(FILE *f) {
int r;
r = fclose(f);
if (r == 0)
return (ISC_R_SUCCESS);
else
return (isc__errno2result(errno));
}
isc_result_t
isc_stdio_seek(FILE *f, long offset, int whence) {
int r;
r = fseek(f, offset, whence);
if (r == 0)
return (ISC_R_SUCCESS);
else
return (isc__errno2result(errno));
}
isc_result_t
isc_stdio_read(void *ptr, size_t size, size_t nmemb, FILE *f, size_t *nret) {
isc_result_t result = ISC_R_SUCCESS;
size_t r;
clearerr(f);
r = fread(ptr, size, nmemb, f);
if (r != nmemb) {
if (feof(f))
result = ISC_R_EOF;
else
result = isc__errno2result(errno);
}
if (nret != NULL)
*nret = r;
return (result);
}
isc_result_t
isc_stdio_write(const void *ptr, size_t size, size_t nmemb, FILE *f,
size_t *nret)
{
isc_result_t result = ISC_R_SUCCESS;
size_t r;
clearerr(f);
r = fwrite(ptr, size, nmemb, f);
if (r != nmemb)
result = isc__errno2result(errno);
if (nret != NULL)
*nret = r;
return (result);
}
isc_result_t
isc_stdio_flush(FILE *f) {
int r;
r = fflush(f);
if (r == 0)
return (ISC_R_SUCCESS);
else
return (isc__errno2result(errno));
}
isc_result_t
isc_stdio_sync(FILE *f) {
int r;
r = _commit(_fileno(f));
if (r == 0)
return (ISC_R_SUCCESS);
else
return (isc__errno2result(errno));
}
Supports Markdown
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment