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1
4 package gnu.bytecode;
5 import java.io.*;
6 import java.util.zip.*;
7
8
13
14 public class ZipArchive
15 {
16 private static void usage ()
17 {
18 System.err.println ("zipfile [ptxq] archive [file ...]");
19 System.exit (-1);
20 }
21
22 public static long copy(InputStream in, OutputStream out, byte[] buffer)
23 throws IOException
24 {
25 long total = 0;
26 for (;;)
27 {
28 int count = in.read(buffer);
29 if (count <= 0)
30 return total;
31 out.write(buffer, 0, count);
32 total += count;
33 }
34 }
35
36 public static void copy(InputStream in, String  name, byte[] buffer)
37 throws IOException
38 {
39 File f = new File(name);
40 String dir_name = f.getParent();
41 if (dir_name != null)
42 {
43 File dir = new File(dir_name);
44 if (! dir.exists())
45 System.err.println("mkdirs:"+dir.mkdirs());
46 }
47 if (name.charAt (name.length () - 1) != '/')
48 {
49 OutputStream out = new BufferedOutputStream(new FileOutputStream(f));
50 copy(in, out, buffer);
51 out.close ();
52 }
53 }
54
55
74
75 public static void main (String args[]) throws IOException
76 {
77 if (args.length < 2)
78 usage ();
79 String command = args[0];
80 String archive_name = args[1];
81
82 try
83 {
84 if (command.equals ("t")
85 || command.equals ("p")
86 || command.equals ("x"))
87 {
88 PrintStream out = System.out;
89 byte[] buf = new byte[1024];
90 if (args.length == 2)
91 {
92 BufferedInputStream in
93 = new BufferedInputStream(new FileInputStream(archive_name));
94 ZipInputStream zin = new ZipInputStream (in);
95 ZipEntry zent;
96 while ((zent = zin.getNextEntry()) != null)
97 {
98 String name = zent.getName();
99 if (command.equals("t"))
100 {
101 out.print(name);
102 out.print(" size: ");
103 out.println(zent.getSize());
104 }
105 else if (command.equals("p"))
106 {
107 copy(zin, out, buf);
108 }
109 else {
111 copy(zin, name, buf);
112 }
113 }
114 }
115 else
116 {
117 ZipFile zar = new ZipFile(archive_name);
118 for (int i = 2; i < args.length; i++)
119 {
120 String name = args[i];
121 ZipEntry zent = zar.getEntry(name);
122 if (zent == null)
123 {
124 System.err.println ("zipfile " + archive_name + ":" +
125 args[i] + " - not found");
126 System.exit (-1);
127 }
128 else if (command.equals("t"))
129 {
130 out.print(name);
131 out.print(" size: ");
132 out.println(zent.getSize());
133 }
134 else if (command.equals("p"))
135 {
136 copy(zar.getInputStream(zent), out, buf);
137 }
138 else {
140 copy(zar.getInputStream(zent), name, buf);
141 }
142 }
143 }
144 }
145 else if (command.equals ("q"))
146 {
147 ZipOutputStream zar
148 = new ZipOutputStream(new FileOutputStream(archive_name));
149 for (int i = 2; i < args.length; i++)
150 {
151 File in = new File (args[i]);
152 if (!in.exists ())
153 throw new IOException (args[i] + " - not found");
154 if (!in.canRead ())
155 throw new IOException (args[i] + " - not readable");
156 int size = (int) in.length ();
157 FileInputStream fin = new FileInputStream (in);
158 byte[] contents = new byte[size];
159 if (fin.read (contents) != size)
160 throw new IOException (args[i] + " - read error");
161 fin.close ();
162
163 ZipEntry ze = new ZipEntry(args[i]);
164 ze.setSize(size);
165 ze.setTime(in.lastModified());
166 zar.putNextEntry(ze);
167 zar.write(contents, 0, size);
168 }
169 zar.close ();
170 }
171 else
172 usage ();
173 }
174 catch (IOException ex)
175 {
176 System.err.println ("I/O Exception: " + ex);
177 }
178 }
179 }
180 |
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