sfprintf.c revision 34f9b3eef6fdadbda0a846aa4d68691ac40eace5
/***********************************************************************
* *
* This software is part of the ast package *
* Copyright (c) 1985-2009 AT&T Intellectual Property *
* and is licensed under the *
* Common Public License, Version 1.0 *
* by AT&T Intellectual Property *
* *
* A copy of the License is available at *
* http://www.opensource.org/licenses/cpl1.0.txt *
* (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) *
* *
* Information and Software Systems Research *
* AT&T Research *
* Florham Park NJ *
* *
* Glenn Fowler <gsf@research.att.com> *
* David Korn <dgk@research.att.com> *
* Phong Vo <kpv@research.att.com> *
* *
***********************************************************************/
#include "sfhdr.h"
/* Print data with a given format
**
** Written by Kiem-Phong Vo.
*/
#if __STD_C
int sfprintf(Sfio_t* f, const char* form, ...)
#else
int sfprintf(va_alist)
va_dcl
#endif
{
va_list args;
reg int rv;
#if __STD_C
va_start(args,form);
#else
reg Sfio_t* f;
reg char* form;
va_start(args);
f = va_arg(args,Sfio_t*);
form = va_arg(args,char*);
#endif
rv = sfvprintf(f,form,args);
va_end(args);
return rv;
}
#if __STD_C
ssize_t sfvsprintf(char* s, size_t n, const char* form, va_list args)
#else
ssize_t sfvsprintf(s, n, form, args)
char* s;
size_t n;
char* form;
va_list args;
#endif
{
Sfio_t *f;
ssize_t rv;
/* make a temp stream */
if(!(f = sfnew(NIL(Sfio_t*),NIL(char*),(size_t)SF_UNBOUND,
-1,SF_WRITE|SF_STRING)) )
return -1;
if((rv = sfvprintf(f,form,args)) >= 0 )
{ if(s && n > 0)
{ if((rv+1) >= n)
n--;
else
n = rv;
memcpy(s, f->data, n);
s[n] = 0;
}
_Sfi = rv;
}
sfclose(f);
return rv;
}
#if __STD_C
ssize_t sfsprintf(char* s, size_t n, const char* form, ...)
#else
ssize_t sfsprintf(va_alist)
va_dcl
#endif
{
va_list args;
ssize_t rv;
#if __STD_C
va_start(args,form);
#else
reg char* s;
reg size_t n;
reg char* form;
va_start(args);
s = va_arg(args,char*);
n = va_arg(args,size_t);
form = va_arg(args,char*);
#endif
rv = sfvsprintf(s,n,form,args);
va_end(args);
return rv;
}