67 lines
1.6 KiB
C
67 lines
1.6 KiB
C
/*
|
|
* Copyright (c) 2000-2001 Sendmail, Inc. and its suppliers.
|
|
* All rights reserved.
|
|
* Copyright (c) 1990, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to Berkeley by
|
|
* Chris Torek.
|
|
*
|
|
* By using this file, you agree to the terms and conditions set
|
|
* forth in the LICENSE file which can be found at the top level of
|
|
* the sendmail distribution.
|
|
*/
|
|
|
|
#include <sm/gen.h>
|
|
SM_RCSID("@(#)$Id: vsprintf.c,v 1.21 2001/09/11 04:04:49 gshapiro Exp $")
|
|
#include <limits.h>
|
|
#include <sm/io.h>
|
|
#include "local.h"
|
|
|
|
/*
|
|
** SM_VSPRINTF -- format data for "output" into a string
|
|
**
|
|
** Assigned 'str' to a "fake" file pointer. This allows common
|
|
** o/p formatting function sm_vprintf() to be used.
|
|
**
|
|
** Parameters:
|
|
** str -- location for output
|
|
** fmt -- format directives
|
|
** ap -- data unit vectors for use by 'fmt'
|
|
**
|
|
** Results:
|
|
** result from sm_io_vfprintf()
|
|
**
|
|
** Side Effects:
|
|
** Quietly limits the size to INT_MAX though this may
|
|
** not prevent SEGV's.
|
|
*/
|
|
|
|
int
|
|
sm_vsprintf(str, fmt, ap)
|
|
char *str;
|
|
const char *fmt;
|
|
SM_VA_LOCAL_DECL
|
|
{
|
|
int ret;
|
|
SM_FILE_T fake;
|
|
|
|
fake.sm_magic = SmFileMagic;
|
|
fake.f_file = -1;
|
|
fake.f_flags = SMWR | SMSTR;
|
|
fake.f_bf.smb_base = fake.f_p = (unsigned char *)str;
|
|
fake.f_bf.smb_size = fake.f_w = INT_MAX;
|
|
fake.f_timeout = SM_TIME_FOREVER;
|
|
fake.f_timeoutstate = SM_TIME_BLOCK;
|
|
fake.f_close = NULL;
|
|
fake.f_open = NULL;
|
|
fake.f_read = NULL;
|
|
fake.f_write = NULL;
|
|
fake.f_seek = NULL;
|
|
fake.f_setinfo = fake.f_getinfo = NULL;
|
|
fake.f_type = "sm_vsprintf:fake";
|
|
ret = sm_io_vfprintf(&fake, SM_TIME_FOREVER, fmt, ap);
|
|
*fake.f_p = '\0';
|
|
return ret;
|
|
}
|