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
167
168
|
/*
* Copyright (c) 2003 Guido Draheim <guidod@gmx.de>
* Use freely under the restrictions of the ZLIB license.
*
* This file is used as an example to clarify zzipfseeko api usage.
*/
#include <zzip/fseeko.h>
#include <stdlib.h>
#include <string.h>
#include "unzzip.h"
#ifdef ZZIP_HAVE_FNMATCH_H
#include <fnmatch.h>
#else
#define fnmatch(x,y,z) strcmp(x,y)
#endif
#ifndef O_BINARY
#define O_BINARY 0
#endif
#ifdef DEBUG
#define debug1(msg) do { fprintf(stderr, "%s : " msg "\n", __func__); } while(0)
#define debug2(msg, arg1) do { fprintf(stderr, "%s : " msg "\n", __func__, arg1); } while(0)
#define debug3(msg, arg1, arg2) do { fprintf(stderr, "%s : " msg "\n", __func__, arg1, arg2); } while(0)
#else
#define debug1(msg)
#define debug2(msg, arg1)
#define debug3(msg, arg1, arg2)
#endif
static void unzzip_big_entry_fprint(ZZIP_ENTRY* entry, FILE* out)
{
ZZIP_ENTRY_FILE* file = zzip_entry_fopen (entry, 0);
if (file)
{
char buffer[1024]; int len;
while ((len = zzip_entry_fread (buffer, 1024, 1, file)))
{
debug2("entry read %i", len);
fwrite (buffer, len, 1, out);
}
debug2("entry done %s", strerror(errno));
zzip_entry_fclose (file);
} else
{
debug2("could not open entry: %s", strerror(errno));
}
}
static void unzzip_cat_file(FILE* disk, char* name, FILE* out)
{
ZZIP_ENTRY_FILE* file = zzip_entry_ffile (disk, name);
if (file)
{
char buffer[1024]; int len;
while ((len = zzip_entry_fread (buffer, 1024, 1, file)))
fwrite (buffer, len, 1, out);
zzip_entry_fclose (file);
}
}
#if !defined(ZZIP_HAVE_STRNDUP)
static char *
strndup(char *p, size_t maxlen)
{
char *r;
if (!p)
return NULL;
r = malloc(maxlen + 1);
if (!r)
return NULL;
strncpy(r, p, maxlen);
r[maxlen] = '\0';
return r;
}
#endif
static FILE* create_fopen(char* name, char* mode, int subdirs)
{
if (subdirs)
{
char* p = strrchr(name, '/');
if (p) {
char* dir_name = strndup(name, p-name);
// makedirs(dir_name); // TODO
free (dir_name);
}
}
return fopen(name, mode);
}
static int unzzip_cat (int argc, char ** argv, int extract)
{
int argn;
FILE* disk;
disk = fopen (argv[1], "rb");
if (! disk) {
perror(argv[1]);
return -1;
}
if (argc == 2)
{ /* print directory list */
ZZIP_ENTRY* entry = zzip_entry_findfirst(disk);
for (; entry ; entry = zzip_entry_findnext(entry))
{
char* name = zzip_entry_strdup_name (entry);
FILE* out = stdout;
if (extract) out = create_fopen(name, "wb", 1);
unzzip_cat_file (disk, name, out);
if (extract) fclose(out);
free (name);
}
return 0;
}
if (argc == 3 && !extract)
{ /* list from one spec */
ZZIP_ENTRY* entry = 0;
while ((entry = zzip_entry_findmatch(disk, argv[2], entry, 0, 0)))
{
unzzip_big_entry_fprint (entry, stdout);
}
return 0;
}
for (argn=1; argn < argc; argn++)
{ /* list only the matching entries - each in order of commandline */
ZZIP_ENTRY* entry = zzip_entry_findfirst(disk);
for (; entry ; entry = zzip_entry_findnext(entry))
{
char* name = zzip_entry_strdup_name (entry);
debug3(".. check '%s' to zip '%s'", argv[argn], name);
if (! fnmatch (argv[argn], name,
FNM_NOESCAPE|FNM_PATHNAME|FNM_PERIOD))
{
FILE* out = stdout;
if (extract) out = create_fopen(name, "wb", 1);
unzzip_cat_file (disk, name, out);
if (extract) fclose(out);
break; /* match loop */
}
free (name);
}
}
return 0;
}
int unzzip_print (int argc, char ** argv)
{
return unzzip_cat(argc, argv, 0);
}
int unzzip_extract (int argc, char ** argv)
{
return unzzip_cat(argc, argv, 1);
}
/*
* Local variables:
* c-file-style: "stroustrup"
* End:
*/
|
