1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 #include "lint.h" 30 #include "file64.h" 31 #include "mtlib.h" 32 #include <sys/types.h> 33 #include <ctype.h> 34 #include <stdio.h> 35 #include "base_conversion.h" 36 #include <locale.h> 37 #include <thread.h> 38 #include <synch.h> 39 #include "stdiom.h" 40 #include "libc.h" 41 42 /* if the _IOWRT flag is set, this must be a call from sscanf */ 43 #define mygetc(iop) ((iop->_flag & _IOWRT) ? \ 44 ((*iop->_ptr == '\0') ? EOF : *iop->_ptr++) : \ 45 GETC(iop)) 46 47 #define myungetc(x, iop) ((iop->_flag & _IOWRT) ? *(--iop->_ptr) : \ 48 UNGETC(x, iop)) 49 50 51 void 52 file_to_decimal(char **ppc, int nmax, int fortran_conventions, 53 decimal_record *pd, enum decimal_string_form *pform, 54 char **pechar, FILE *pf, int *pnread) 55 { 56 char *cp = *ppc - 1; /* last character seen */ 57 char *good = cp; /* last character accepted */ 58 int current; /* *cp or EOF */ 59 int nread = 0; /* number of characters read so far */ 60 61 /* if the _IOWRT flag is set, this must be a call from sscanf */ 62 #define NEXT \ 63 if (nread < nmax) { \ 64 current = ((pf->_flag & _IOWRT) ? \ 65 ((*pf->_ptr == '\0') ? EOF : *pf->_ptr++) : \ 66 GETC(pf)); \ 67 if (current != EOF) { \ 68 *++cp = (char)current; \ 69 nread++; \ 70 } \ 71 } else { \ 72 current = EOF; \ 73 } 74 75 NEXT; 76 77 #include "char_to_decimal.h" 78 79 /* 80 * If we read any characters beyond the end of the accepted 81 * token, try to push them back. 82 */ 83 if (fortran_conventions < 0) { 84 /* in C99 mode, push back at most one character */ 85 if (cp >= *ppc && current != EOF && myungetc(current, pf) 86 != EOF) { 87 cp--; 88 nread--; 89 } 90 } else { 91 while (cp >= *ppc) { 92 if (myungetc((int)(unsigned char)*cp, pf) == EOF) 93 break; 94 cp--; 95 nread--; 96 } 97 } 98 99 *++cp = '\0'; 100 *pnread = nread; 101 } 102