1 /*********************************************************************** 2 * * 3 * This software is part of the ast package * 4 * Copyright (c) 1985-2008 AT&T Intellectual Property * 5 * and is licensed under the * 6 * Common Public License, Version 1.0 * 7 * by AT&T Intellectual Property * 8 * * 9 * A copy of the License is available at * 10 * http://www.opensource.org/licenses/cpl1.0.txt * 11 * (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) * 12 * * 13 * Information and Software Systems Research * 14 * AT&T Research * 15 * Florham Park NJ * 16 * * 17 * Glenn Fowler <gsf@research.att.com> * 18 * David Korn <dgk@research.att.com> * 19 * Phong Vo <kpv@research.att.com> * 20 * * 21 ***********************************************************************/ 22 #include "sfhdr.h" 23 24 /* Write out an unsigned long value in a portable format. 25 ** 26 ** Written by Kiem-Phong Vo. 27 */ 28 29 #if __STD_C 30 int _sfputm(Sfio_t* f, Sfulong_t v, Sfulong_t m) 31 #else 32 int _sfputm(f,v,m) 33 Sfio_t* f; /* write a portable ulong to this stream */ 34 Sfulong_t v; /* the unsigned value to be written */ 35 Sfulong_t m; /* the max value of the range */ 36 #endif 37 { 38 #define N_ARRAY (2*sizeof(Sfulong_t)) 39 reg uchar *s, *ps; 40 reg ssize_t n, p; 41 uchar c[N_ARRAY]; 42 SFMTXDECL(f); 43 44 SFMTXENTER(f, -1); 45 46 if(v > m || (f->mode != SF_WRITE && _sfmode(f,SF_WRITE,0) < 0) ) 47 SFMTXRETURN(f, -1); 48 SFLOCK(f,0); 49 50 /* code v as integers in base SF_UBASE */ 51 s = ps = &(c[N_ARRAY-1]); 52 *s = (uchar)SFBVALUE(v); 53 while((m >>= SF_BBITS) > 0 ) 54 { v >>= SF_BBITS; 55 *--s = (uchar)SFBVALUE(v); 56 } 57 n = (ps-s)+1; 58 59 if(n > 8 || SFWPEEK(f,ps,p) < n) 60 n = SFWRITE(f,(Void_t*)s,n); /* write the hard way */ 61 else 62 { switch(n) 63 { 64 case 8 : *ps++ = *s++; 65 case 7 : *ps++ = *s++; 66 case 6 : *ps++ = *s++; 67 case 5 : *ps++ = *s++; 68 case 4 : *ps++ = *s++; 69 case 3 : *ps++ = *s++; 70 case 2 : *ps++ = *s++; 71 case 1 : *ps++ = *s++; 72 } 73 f->next = ps; 74 } 75 76 SFOPEN(f,0); 77 SFMTXRETURN(f, (int)n); 78 } 79