1 /*********************************************************************** 2 * * 3 * This software is part of the ast package * 4 * Copyright (c) 1985-2010 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 /* Read formated data from a stream 25 ** 26 ** Written by Kiem-Phong Vo. 27 */ 28 29 #if __STD_C 30 int sfscanf(Sfio_t* f, const char* form, ...) 31 #else 32 int sfscanf(va_alist) 33 va_dcl 34 #endif 35 { 36 va_list args; 37 reg int rv; 38 39 #if __STD_C 40 va_start(args,form); 41 #else 42 reg Sfio_t* f; 43 reg char* form; 44 va_start(args); 45 f = va_arg(args,Sfio_t*); 46 form = va_arg(args,char*); 47 #endif 48 49 rv = (f && form) ? sfvscanf(f,form,args) : -1; 50 va_end(args); 51 return rv; 52 } 53 54 #if __STD_C 55 int sfvsscanf(const char* s, const char* form, va_list args) 56 #else 57 int sfvsscanf(s, form, args) 58 char* s; 59 char* form; 60 va_list args; 61 #endif 62 { 63 Sfio_t f; 64 65 if(!s || !form) 66 return -1; 67 68 /* make a fake stream */ 69 SFCLEAR(&f,NIL(Vtmutex_t*)); 70 f.flags = SF_STRING|SF_READ; 71 f.bits = SF_PRIVATE; 72 f.mode = SF_READ; 73 f.size = strlen((char*)s); 74 f.data = f.next = f.endw = (uchar*)s; 75 f.endb = f.endr = f.data+f.size; 76 77 return sfvscanf(&f,form,args); 78 } 79 80 #if __STD_C 81 int sfsscanf(const char* s, const char* form,...) 82 #else 83 int sfsscanf(va_alist) 84 va_dcl 85 #endif 86 { 87 va_list args; 88 reg int rv; 89 #if __STD_C 90 va_start(args,form); 91 #else 92 reg char* s; 93 reg char* form; 94 va_start(args); 95 s = va_arg(args,char*); 96 form = va_arg(args,char*); 97 #endif 98 99 rv = (s && form) ? sfvsscanf(s,form,args) : -1; 100 va_end(args); 101 return rv; 102 } 103