1 // example2.c - Simple demonstration of miniz.c's ZIP archive API's.
2 // Note this test deletes the test archive file "__mz_example2_test__.zip" in the current directory, then creates a new one with test data.
3 // Public domain, May 15 2011, Rich Geldreich, richgel99@gmail.com. See "unlicense" statement at the end of tinfl.c.
4
5 #if defined(__GNUC__)
6 // Ensure we get the 64-bit variants of the CRT's file I/O calls
7 #ifndef _FILE_OFFSET_BITS
8 #define _FILE_OFFSET_BITS 64
9 #endif
10 #ifndef _LARGEFILE64_SOURCE
11 #define _LARGEFILE64_SOURCE 1
12 #endif
13 #endif
14
15 #include <stdio.h>
16 #include "miniz_zip.h"
17
18 typedef unsigned char uint8;
19 typedef unsigned short uint16;
20 typedef unsigned int uint;
21
22 // The string to compress.
23 static const char *s_pTest_str =
24 "MISSION CONTROL I wouldn't worry too much about the computer. First of all, there is still a chance that he is right, despite your tests, and" \
25 "if it should happen again, we suggest eliminating this possibility by allowing the unit to remain in place and seeing whether or not it" \
26 "actually fails. If the computer should turn out to be wrong, the situation is still not alarming. The type of obsessional error he may be" \
27 "guilty of is not unknown among the latest generation of HAL 9000 computers. It has almost always revolved around a single detail, such as" \
28 "the one you have described, and it has never interfered with the integrity or reliability of the computer's performance in other areas." \
29 "No one is certain of the cause of this kind of malfunctioning. It may be over-programming, but it could also be any number of reasons. In any" \
30 "event, it is somewhat analogous to human neurotic behavior. Does this answer your query? Zero-five-three-Zero, MC, transmission concluded.";
31
32 static const char *s_pComment = "This is a comment";
33
main(int argc,char * argv[])34 int main(int argc, char *argv[])
35 {
36 int i, sort_iter;
37 mz_bool status;
38 size_t uncomp_size;
39 mz_zip_archive zip_archive;
40 void *p;
41 const int N = 50;
42 char data[2048];
43 char archive_filename[64];
44 static const char *s_Test_archive_filename = "__mz_example2_test__.zip";
45
46 assert((strlen(s_pTest_str) + 64) < sizeof(data));
47
48 printf("miniz.c version: %s\n", MZ_VERSION);
49
50 (void)argc, (void)argv;
51
52 // Delete the test archive, so it doesn't keep growing as we run this test
53 remove(s_Test_archive_filename);
54
55 // Append a bunch of text files to the test archive
56 for (i = (N - 1); i >= 0; --i)
57 {
58 sprintf(archive_filename, "%u.txt", i);
59 sprintf(data, "%u %s %u", (N - 1) - i, s_pTest_str, i);
60
61 // Add a new file to the archive. Note this is an IN-PLACE operation, so if it fails your archive is probably hosed (its central directory may not be complete) but it should be recoverable using zip -F or -FF. So use caution with this guy.
62 // A more robust way to add a file to an archive would be to read it into memory, perform the operation, then write a new archive out to a temp file and then delete/rename the files.
63 // Or, write a new archive to disk to a temp file, then delete/rename the files. For this test this API is fine.
64 status = mz_zip_add_mem_to_archive_file_in_place(s_Test_archive_filename, archive_filename, data, strlen(data) + 1, s_pComment, (uint16)strlen(s_pComment), MZ_BEST_COMPRESSION);
65 if (!status)
66 {
67 printf("mz_zip_add_mem_to_archive_file_in_place failed!\n");
68 return EXIT_FAILURE;
69 }
70 }
71
72 // Add a directory entry for testing
73 status = mz_zip_add_mem_to_archive_file_in_place(s_Test_archive_filename, "directory/", NULL, 0, "no comment", (uint16)strlen("no comment"), MZ_BEST_COMPRESSION);
74 if (!status)
75 {
76 printf("mz_zip_add_mem_to_archive_file_in_place failed!\n");
77 return EXIT_FAILURE;
78 }
79
80 // Now try to open the archive.
81 memset(&zip_archive, 0, sizeof(zip_archive));
82
83 status = mz_zip_reader_init_file(&zip_archive, s_Test_archive_filename, 0);
84 if (!status)
85 {
86 printf("mz_zip_reader_init_file() failed!\n");
87 return EXIT_FAILURE;
88 }
89
90 // Get and print information about each file in the archive.
91 for (i = 0; i < (int)mz_zip_reader_get_num_files(&zip_archive); i++)
92 {
93 mz_zip_archive_file_stat file_stat;
94 if (!mz_zip_reader_file_stat(&zip_archive, i, &file_stat))
95 {
96 printf("mz_zip_reader_file_stat() failed!\n");
97 mz_zip_reader_end(&zip_archive);
98 return EXIT_FAILURE;
99 }
100
101 printf("Filename: \"%s\", Comment: \"%s\", Uncompressed size: %u, Compressed size: %u, Is Dir: %u\n", file_stat.m_filename, file_stat.m_comment, (uint)file_stat.m_uncomp_size, (uint)file_stat.m_comp_size, mz_zip_reader_is_file_a_directory(&zip_archive, i));
102
103 if (!strcmp(file_stat.m_filename, "directory/"))
104 {
105 if (!mz_zip_reader_is_file_a_directory(&zip_archive, i))
106 {
107 printf("mz_zip_reader_is_file_a_directory() didn't return the expected results!\n");
108 mz_zip_reader_end(&zip_archive);
109 return EXIT_FAILURE;
110 }
111 }
112 }
113
114 // Close the archive, freeing any resources it was using
115 mz_zip_reader_end(&zip_archive);
116
117 // Now verify the compressed data
118 for (sort_iter = 0; sort_iter < 2; sort_iter++)
119 {
120 memset(&zip_archive, 0, sizeof(zip_archive));
121 status = mz_zip_reader_init_file(&zip_archive, s_Test_archive_filename, sort_iter ? MZ_ZIP_FLAG_DO_NOT_SORT_CENTRAL_DIRECTORY : 0);
122 if (!status)
123 {
124 printf("mz_zip_reader_init_file() failed!\n");
125 return EXIT_FAILURE;
126 }
127
128 for (i = 0; i < N; i++)
129 {
130 sprintf(archive_filename, "%u.txt", i);
131 sprintf(data, "%u %s %u", (N - 1) - i, s_pTest_str, i);
132
133 // Try to extract all the files to the heap.
134 p = mz_zip_reader_extract_file_to_heap(&zip_archive, archive_filename, &uncomp_size, 0);
135 if (!p)
136 {
137 printf("mz_zip_reader_extract_file_to_heap() failed!\n");
138 mz_zip_reader_end(&zip_archive);
139 return EXIT_FAILURE;
140 }
141
142 // Make sure the extraction really succeeded.
143 if ((uncomp_size != (strlen(data) + 1)) || (memcmp(p, data, strlen(data))))
144 {
145 printf("mz_zip_reader_extract_file_to_heap() failed to extract the proper data\n");
146 mz_free(p);
147 mz_zip_reader_end(&zip_archive);
148 return EXIT_FAILURE;
149 }
150
151 printf("Successfully extracted file \"%s\", size %u\n", archive_filename, (uint)uncomp_size);
152 printf("File data: \"%s\"\n", (const char *)p);
153
154 // We're done.
155 mz_free(p);
156 }
157
158 // Close the archive, freeing any resources it was using
159 mz_zip_reader_end(&zip_archive);
160 }
161
162 printf("Success.\n");
163 return EXIT_SUCCESS;
164 }
165