1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
|
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 1990, 2010, Oracle and/or its affiliates. All rights reserved.
*/
#include <stdio.h>
#include <string.h>
#define iseol(c) (c == 0 || c == '\n' || strchr(com, c) != NULL)
#define issep(c) (strchr(sep, c) != NULL)
#define isignore(c) (strchr(ignore, c) != NULL)
/*
* getaline()
* Read a line from a file.
* What's returned is a cookie to be passed to getname
*/
char **
getaline(line, maxlinelen, f, lcount, com)
char *line;
int maxlinelen;
FILE *f;
int *lcount;
char *com;
{
char *p;
static char *lp;
do {
if (! fgets(line, maxlinelen, f)) {
return (NULL);
}
(*lcount)++;
} while (iseol(line[0]));
p = line;
for (;;) {
while (*p) {
p++;
}
if (*--p == '\n' && *--p == '\\') {
if (! fgets(p, maxlinelen, f)) {
break;
}
(*lcount)++;
} else {
break;
}
}
lp = line;
return (&lp);
}
/*
* getname()
* Get the next entry from the line.
* You tell getname() which characters to ignore before storing them
* into name, and which characters separate entries in a line.
* The cookie is updated appropriately.
* return:
* 1: one entry parsed
* 0: partial entry parsed, ran out of space in name
* -1: no more entries in line
*/
int
getname(name, namelen, ignore, sep, linep, com)
char *name;
int namelen;
char *ignore;
char *sep;
char **linep;
char *com;
{
register char c;
register char *lp;
register char *np;
lp = *linep;
do {
c = *lp++;
} while (isignore(c) && !iseol(c));
if (iseol(c)) {
*linep = lp - 1;
return (-1);
}
np = name;
while (! issep(c) && ! iseol(c) && np - name < namelen) {
*np++ = c;
c = *lp++;
}
lp--;
if (np - name < namelen) {
*np = 0;
if (iseol(c)) {
*lp = 0;
} else {
lp++; /* advance over separator */
}
} else {
*linep = lp;
return (0);
}
*linep = lp;
return (1);
}
|
