Files
cpython-source-deps/clib/printf.c
2017-09-04 13:40:25 -05:00

143 lines
2.8 KiB
C

/*-
* See the file LICENSE for redistribution information.
*
* Copyright (c) 2005,2008 Oracle. All rights reserved.
*
* $Id: printf.c 63573 2008-05-23 21:43:21Z trent.nelson $
*/
#include "db_config.h"
#include "db_int.h"
/*
* printf --
*
* PUBLIC: #ifndef HAVE_PRINTF
* PUBLIC: int printf __P((const char *, ...));
* PUBLIC: #endif
*/
#ifndef HAVE_PRINTF
int
#ifdef STDC_HEADERS
printf(const char *fmt, ...)
#else
printf(fmt, va_alist)
const char *fmt;
va_dcl
#endif
{
va_list ap;
size_t len;
char buf[2048]; /* !!!: END OF THE STACK DON'T TRUST SPRINTF. */
#ifdef STDC_HEADERS
va_start(ap, fmt);
#else
va_start(ap);
#endif
len = (size_t)vsnprintf(buf, sizeof(buf), fmt, ap);
#ifdef HAVE_BREW
/*
* The BREW vsnprintf function return count includes the trailing
* nul-termination character.
*/
if (len > 0 && len <= sizeof(buf) && buf[len - 1] == '\0')
--len;
#endif
va_end(ap);
/*
* We implement printf/fprintf with fwrite, because Berkeley DB uses
* fwrite in other places.
*/
return (fwrite(
buf, sizeof(char), (size_t)len, stdout) == len ? (int)len: -1);
}
#endif /* HAVE_PRINTF */
/*
* fprintf --
*
* PUBLIC: #ifndef HAVE_PRINTF
* PUBLIC: int fprintf __P((FILE *, const char *, ...));
* PUBLIC: #endif
*/
#ifndef HAVE_PRINTF
int
#ifdef STDC_HEADERS
fprintf(FILE *fp, const char *fmt, ...)
#else
fprintf(fp, fmt, va_alist)
FILE *fp;
const char *fmt;
va_dcl
#endif
{
va_list ap;
size_t len;
char buf[2048]; /* !!!: END OF THE STACK DON'T TRUST SPRINTF. */
#ifdef STDC_HEADERS
va_start(ap, fmt);
#else
va_start(ap);
#endif
len = vsnprintf(buf, sizeof(buf), fmt, ap);
#ifdef HAVE_BREW
/*
* The BREW vsnprintf function return count includes the trailing
* nul-termination character.
*/
if (len > 0 && len <= sizeof(buf) && buf[len - 1] == '\0')
--len;
#endif
va_end(ap);
/*
* We implement printf/fprintf with fwrite, because Berkeley DB uses
* fwrite in other places.
*/
return (fwrite(
buf, sizeof(char), (size_t)len, fp) == len ? (int)len: -1);
}
#endif /* HAVE_PRINTF */
/*
* vfprintf --
*
* PUBLIC: #ifndef HAVE_PRINTF
* PUBLIC: int vfprintf __P((FILE *, const char *, va_list));
* PUBLIC: #endif
*/
#ifndef HAVE_PRINTF
int
vfprintf(fp, fmt, ap)
FILE *fp;
const char *fmt;
va_list ap;
{
size_t len;
char buf[2048]; /* !!!: END OF THE STACK DON'T TRUST SPRINTF. */
len = vsnprintf(buf, sizeof(buf), fmt, ap);
#ifdef HAVE_BREW
/*
* The BREW vsnprintf function return count includes the trailing
* nul-termination character.
*/
if (len > 0 && len <= sizeof(buf) && buf[len - 1] == '\0')
--len;
#endif
/*
* We implement printf/fprintf with fwrite, because Berkeley DB uses
* fwrite in other places.
*/
return (fwrite(
buf, sizeof(char), (size_t)len, fp) == len ? (int)len: -1);
}
#endif /* HAVE_PRINTF */