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 #include "lint.h"
28 #include "file64.h"
29 #include "mtlib.h"
30 #include <sys/types.h>
31 #include <ctype.h>
32 #include <stdio.h>
33 #include "base_conversion.h"
34 #include <xlocale.h>
35 #include <locale.h>
36 #include <thread.h>
37 #include <synch.h>
38 #include "stdiom.h"
39 #include "libc.h"
40
41 /* if the _IOWRT flag is set, this must be a call from sscanf */
42 #define mygetc(iop) ((iop->_flag & _IOWRT) ? \
43 ((*iop->_ptr == '\0') ? EOF : *iop->_ptr++) : \
44 GETC(iop))
45
46 #define myungetc(x, iop) ((iop->_flag & _IOWRT) ? *(--iop->_ptr) : \
47 UNGETC(x, iop))
48
49
50 void
file_to_decimal(char ** ppc,int nmax,int fortran_conventions,decimal_record * pd,enum decimal_string_form * pform,char ** pechar,FILE * pf,int * pnread)51 file_to_decimal(char **ppc, int nmax, int fortran_conventions,
52 decimal_record *pd, enum decimal_string_form *pform,
53 char **pechar, FILE *pf, int *pnread)
54 {
55 char *cp = *ppc - 1; /* last character seen */
56 char *good = cp; /* last character accepted */
57 int current; /* *cp or EOF */
58 int nread = 0; /* number of characters read so far */
59 locale_t loc = uselocale(NULL);
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