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
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
|
/*
* expandav.c
*
* $Id: expandav.c,v 1.1.1.1 2006/04/11 17:56:16 source Exp $
*
* Commandline expansion
*
* This file is part of the OpenLink Software Virtuoso Open-Source (VOS)
* project.
*
* Copyright (C) 1998-2006 OpenLink Software
*
* This project is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; only version 2 of the License, dated June 1991.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*
*/
#include <libutil.h>
int glob_argc;
char **glob_argv;
#define REALLOC_AMOUNT 20
static int max_argv;
/*
* Add a token to the global argv list
*/
static void
add_argv (char *argv_element)
{
char *new_element;
if (glob_argc >= max_argv)
{
max_argv += REALLOC_AMOUNT;
glob_argv = (char **) s_realloc (glob_argv, sizeof (char *) * max_argv);
}
new_element = s_strdup (argv_element);
glob_argv[glob_argc++] = new_element;
}
#define ignore() ((car) == ' ' || (car) == '\t' || (car) == '\n')
#define gett() car = fgetc (fd)
static char *
get_token (FILE *fd)
{
static char token[500];
char *tp;
int car;
do gett (); while (ignore ());
if (car == EOF)
return NULL;
tp = token;
if (car == '\"' || car == '\'')
{
int delim = car;
gett ();
while (car != delim && car != '\n' && car != EOF &&
(u_int) (tp - token) < sizeof (token) - 1)
{
*tp++ = car;
gett ();
}
#if 0
if (car != delim)
fputs ("unterminated string\n", stderr);
#endif
}
else
{
while ((u_int) (tp - token) < sizeof (token) - 1 && !ignore ())
{
*tp++ = car;
gett ();
}
}
*tp++ = '\0';
return token;
}
static void
handle_response (char *response)
{
FILE *response_fd;
char *token;
if ((response_fd = fopen (response, "r")) == NULL)
{
log (L_ERR, N_("unable to open response file %s"), response);
terminate (1);
}
while ((token = get_token (response_fd)) != NULL)
add_argv (token);
fclose (response_fd);
}
/*
* Expand argv vector
*
* Values for how:
* EXP_WILDCARD Perform wildcard expansion (DEPRECATED)
* EXP_RESPONSE Handle response files (last argument @filename)
*/
void
expand_argv (int *argc, char ***argv, int how)
{
char *element;
int nargs;
int i;
glob_argc = 0;
nargs = *argc;
max_argv = nargs + REALLOC_AMOUNT;
glob_argv = salloc (max_argv, char *);
for (i = 0; i < nargs; i++)
{
element = (*argv)[i];
if (*element == '@' && (how & EXP_RESPONSE) && i == nargs - 1)
handle_response (element + 1);
else
add_argv (element);
}
*argc = glob_argc;
*argv = glob_argv;
}
#ifdef TEST
void
main (int argc, char **argv)
{
int i;
expand_argv (&argc, &argv, EXP_RESPONSE);
for (i = 0; i < argc; i++)
printf ("%d: `%s'\n", i, argv[i]);
}
#endif
|
