da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin/***********************************************************************
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* This software is part of the ast package *
3e14f97f673e8a630f076077de35afdd43dc1587Roger A. Faulkner* Copyright (c) 1985-2010 AT&T Intellectual Property *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* and is licensed under the *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* Common Public License, Version 1.0 *
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin* by AT&T Intellectual Property *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* A copy of the License is available at *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* http://www.opensource.org/licenses/cpl1.0.txt *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* Information and Software Systems Research *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* AT&T Research *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* Florham Park NJ *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* Glenn Fowler <gsf@research.att.com> *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* David Korn <dgk@research.att.com> *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* Phong Vo <kpv@research.att.com> *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin***********************************************************************/
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#include "sfhdr.h"
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin/* Construct a string with the given format and data.
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin** These functions allocate space as necessary to store the string.
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin** This avoids overflow problems typical with sprintf() in stdio.
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin**
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin** Written by Kiem-Phong Vo.
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin*/
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#if __STD_C
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chinchar* sfvprints(const char* form, va_list args)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#else
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chinchar* sfvprints(form, args)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chinchar* form;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chinva_list args;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#endif
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin{
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin reg int rv;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin static Sfio_t* f;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin /* make a fake stream */
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if(!f &&
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin !(f = sfnew(NIL(Sfio_t*),NIL(char*),(size_t)SF_UNBOUND,
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin -1,SF_WRITE|SF_STRING)) )
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin return NIL(char*);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin sfseek(f,(Sfoff_t)0,SEEK_SET);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin rv = sfvprintf(f,form,args);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if(rv < 0 || sfputc(f,'\0') < 0)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin return NIL(char*);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin _Sfi = (f->next - f->data) - 1;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin return (char*)f->data;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin}
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#if __STD_C
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chinchar* sfprints(const char* form, ...)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#else
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chinchar* sfprints(va_alist)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chinva_dcl
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#endif
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin{
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin char* s;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin va_list args;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#if __STD_C
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin va_start(args,form);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#else
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin char *form;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin va_start(args);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin form = va_arg(args,char*);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#endif
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin s = sfvprints(form, args);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin va_end(args);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin return s;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin}
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#if __STD_C
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chinssize_t sfvaprints(char** sp, const char* form, va_list args)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#else
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chinssize_t sfvaprints(sp, form, args)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chinchar** sp;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chinchar* form;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chinva_list args;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#endif
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin{
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin char *s;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin ssize_t n;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if(!sp || !(s = sfvprints(form,args)) )
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin return -1;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin else
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin { if(!(*sp = (char*)malloc(n = strlen(s)+1)) )
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin return -1;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin memcpy(*sp, s, n);
34f9b3eef6fdadbda0a846aa4d68691ac40eace5Roland Mainz return n - 1;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin }
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin}
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#if __STD_C
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chinssize_t sfaprints(char** sp, const char* form, ...)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#else
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chinssize_t sfaprints(va_alist)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chinva_dcl
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#endif
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin{
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin ssize_t n;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin va_list args;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#if __STD_C
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin va_start(args,form);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#else
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin char **sp, *form;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin va_start(args);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin sp = va_arg(args, char**);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin form = va_arg(args, char*);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#endif
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin n = sfvaprints(sp, form, args);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin va_end(args);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin return n;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin}