/*********************************************************************** * * * This software is part of the ast package * * Copyright (c) 1985-2007 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" /* Write out an unsigned long value in a portable format. ** ** Written by Kiem-Phong Vo. */ #if __STD_C int _sfputm(reg Sfio_t* f, Sfulong_t v, Sfulong_t m) #else int _sfputm(f,v,m) reg Sfio_t* f; /* write a portable ulong to this stream */ Sfulong_t v; /* the unsigned value to be written */ Sfulong_t m; /* the max value of the range */ #endif { #define N_ARRAY (2*sizeof(Sfulong_t)) reg uchar *s, *ps; reg ssize_t n, p; uchar c[N_ARRAY]; SFMTXSTART(f, -1); if(v > m || (f->mode != SF_WRITE && _sfmode(f,SF_WRITE,0) < 0) ) SFMTXRETURN(f, -1); SFLOCK(f,0); /* code v as integers in base SF_UBASE */ s = ps = &(c[N_ARRAY-1]); *s = (uchar)SFBVALUE(v); while((m >>= SF_BBITS) > 0 ) { v >>= SF_BBITS; *--s = (uchar)SFBVALUE(v); } n = (ps-s)+1; if(n > 8 || SFWPEEK(f,ps,p) < n) n = SFWRITE(f,(Void_t*)s,n); /* write the hard way */ else { switch(n) { case 8 : *ps++ = *s++; case 7 : *ps++ = *s++; case 6 : *ps++ = *s++; case 5 : *ps++ = *s++; case 4 : *ps++ = *s++; case 3 : *ps++ = *s++; case 2 : *ps++ = *s++; case 1 : *ps++ = *s++; } f->next = ps; } SFOPEN(f,0); SFMTXRETURN(f, (int)n); }