1*4887Schin /*********************************************************************** 2*4887Schin * * 3*4887Schin * This software is part of the ast package * 4*4887Schin * Copyright (c) 1985-2007 AT&T Knowledge Ventures * 5*4887Schin * and is licensed under the * 6*4887Schin * Common Public License, Version 1.0 * 7*4887Schin * by AT&T Knowledge Ventures * 8*4887Schin * * 9*4887Schin * A copy of the License is available at * 10*4887Schin * http://www.opensource.org/licenses/cpl1.0.txt * 11*4887Schin * (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) * 12*4887Schin * * 13*4887Schin * Information and Software Systems Research * 14*4887Schin * AT&T Research * 15*4887Schin * Florham Park NJ * 16*4887Schin * * 17*4887Schin * Glenn Fowler <gsf@research.att.com> * 18*4887Schin * David Korn <dgk@research.att.com> * 19*4887Schin * Phong Vo <kpv@research.att.com> * 20*4887Schin * * 21*4887Schin ***********************************************************************/ 22*4887Schin #include "sfhdr.h" 23*4887Schin 24*4887Schin /* Write out a character n times 25*4887Schin ** 26*4887Schin ** Written by Kiem-Phong Vo. 27*4887Schin */ 28*4887Schin 29*4887Schin #if __STD_C 30*4887Schin ssize_t sfnputc(reg Sfio_t* f, reg int c, reg size_t n) 31*4887Schin #else 32*4887Schin ssize_t sfnputc(f,c,n) 33*4887Schin reg Sfio_t* f; /* file to write */ 34*4887Schin reg int c; /* char to be written */ 35*4887Schin reg size_t n; /* number of time to repeat */ 36*4887Schin #endif 37*4887Schin { 38*4887Schin reg uchar* ps; 39*4887Schin reg ssize_t p, w; 40*4887Schin uchar buf[128]; 41*4887Schin reg int local; 42*4887Schin 43*4887Schin SFMTXSTART(f,-1); 44*4887Schin 45*4887Schin GETLOCAL(f,local); 46*4887Schin if(SFMODE(f,local) != SF_WRITE && _sfmode(f,SF_WRITE,local) < 0) 47*4887Schin SFMTXRETURN(f, -1); 48*4887Schin 49*4887Schin SFLOCK(f,local); 50*4887Schin 51*4887Schin /* write into a suitable buffer */ 52*4887Schin if((size_t)(p = (f->endb-(ps = f->next))) < n) 53*4887Schin { ps = buf; p = sizeof(buf); } 54*4887Schin if((size_t)p > n) 55*4887Schin p = n; 56*4887Schin MEMSET(ps,c,p); 57*4887Schin ps -= p; 58*4887Schin 59*4887Schin w = n; 60*4887Schin if(ps == f->next) 61*4887Schin { /* simple sfwrite */ 62*4887Schin f->next += p; 63*4887Schin if(c == '\n') 64*4887Schin (void)SFFLSBUF(f,-1); 65*4887Schin goto done; 66*4887Schin } 67*4887Schin 68*4887Schin for(;;) 69*4887Schin { /* hard write of data */ 70*4887Schin if((p = SFWRITE(f,(Void_t*)ps,p)) <= 0 || (n -= p) <= 0) 71*4887Schin { w -= n; 72*4887Schin goto done; 73*4887Schin } 74*4887Schin if((size_t)p > n) 75*4887Schin p = n; 76*4887Schin } 77*4887Schin done : 78*4887Schin SFOPEN(f,local); 79*4887Schin SFMTXRETURN(f, w); 80*4887Schin } 81