diff options
Diffstat (limited to 'libbb/deb_extract.c')
-rw-r--r-- | libbb/deb_extract.c | 124 |
1 files changed, 0 insertions, 124 deletions
diff --git a/libbb/deb_extract.c b/libbb/deb_extract.c deleted file mode 100644 index f64193970..000000000 --- a/libbb/deb_extract.c +++ /dev/null | |||
@@ -1,124 +0,0 @@ | |||
1 | /* vi: set sw=4 ts=4: */ | ||
2 | /* | ||
3 | * Copyright (C) tons of folks. Tracking down who wrote what | ||
4 | * isn't something I'm going to worry about... If you wrote something | ||
5 | * here, please feel free to acknowledge your work. | ||
6 | * | ||
7 | * This program is free software; you can redistribute it and/or modify | ||
8 | * it under the terms of the GNU General Public License as published by | ||
9 | * the Free Software Foundation; either version 2 of the License, or | ||
10 | * (at your option) any later version. | ||
11 | * | ||
12 | * This program is distributed in the hope that it will be useful, | ||
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
15 | * General Public License for more details. | ||
16 | * | ||
17 | * You should have received a copy of the GNU General Public License | ||
18 | * along with this program; if not, write to the Free Software | ||
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
20 | * | ||
21 | * Based in part on code from sash, Copyright (c) 1999 by David I. Bell | ||
22 | * Permission has been granted to redistribute this code under the GPL. | ||
23 | * | ||
24 | */ | ||
25 | |||
26 | #include <fcntl.h> | ||
27 | #include <unistd.h> | ||
28 | #include <stdlib.h> | ||
29 | #include <string.h> | ||
30 | #include "libbb.h" | ||
31 | |||
32 | int seek_sub_file(FILE *in_file, file_headers_t *headers, const char *tar_gz_file) | ||
33 | { | ||
34 | /* find the headers for the specified .tar.gz file */ | ||
35 | while (headers != NULL) { | ||
36 | if (strcmp(headers->name, tar_gz_file) == 0) { | ||
37 | fseek(in_file, headers->offset, SEEK_SET); | ||
38 | return(EXIT_SUCCESS); | ||
39 | } | ||
40 | headers = headers->next; | ||
41 | } | ||
42 | |||
43 | return(EXIT_FAILURE); | ||
44 | } | ||
45 | |||
46 | /* | ||
47 | * The contents of argument depend on the value of function. | ||
48 | * It is either a dir name or a control file or field name(see dpkg_deb.c) | ||
49 | */ | ||
50 | char *deb_extract(const char *package_filename, FILE *out_stream, const int extract_function, | ||
51 | const char *prefix, const char *filename) | ||
52 | { | ||
53 | FILE *deb_stream, *uncompressed_stream; | ||
54 | file_headers_t *ar_headers = NULL; | ||
55 | file_headers_t *tar_headers = NULL; | ||
56 | file_headers_t *list_ptr; | ||
57 | file_headers_t *deb_extract_list = (file_headers_t *) calloc(1, sizeof(file_headers_t)); | ||
58 | |||
59 | char *ared_file = NULL; | ||
60 | char *output_buffer = NULL; | ||
61 | int gunzip_pid; | ||
62 | |||
63 | if (extract_function & extract_control_tar_gz) { | ||
64 | ared_file = xstrdup("control.tar.gz"); | ||
65 | } | ||
66 | else if (extract_function & extract_data_tar_gz) { | ||
67 | ared_file = xstrdup("data.tar.gz"); | ||
68 | } | ||
69 | |||
70 | /* open the debian package to be worked on */ | ||
71 | deb_stream = wfopen(package_filename, "r"); | ||
72 | |||
73 | ar_headers = (file_headers_t *) xmalloc(sizeof(file_headers_t)); | ||
74 | |||
75 | /* get a linked list of all ar entries */ | ||
76 | ar_headers = get_ar_headers(deb_stream); | ||
77 | if (ar_headers == NULL) { | ||
78 | error_msg("Couldnt get ar headers\n"); | ||
79 | return(NULL); | ||
80 | } | ||
81 | |||
82 | /* seek to the start of the .tar.gz file within the ar file*/ | ||
83 | fseek(deb_stream, 0, SEEK_SET); | ||
84 | if (seek_sub_file(deb_stream, ar_headers, ared_file) == EXIT_FAILURE) { | ||
85 | error_msg("Couldnt seek to file %s", ared_file); | ||
86 | } | ||
87 | |||
88 | /* get a linked list of all tar entries */ | ||
89 | tar_headers = get_tar_gz_headers(deb_stream); | ||
90 | if (tar_headers == NULL) { | ||
91 | error_msg("Couldnt get tar headers\n"); | ||
92 | return(NULL); | ||
93 | } | ||
94 | |||
95 | if (extract_function & extract_one_to_buffer) { | ||
96 | list_ptr = tar_headers; | ||
97 | while (list_ptr != NULL) { | ||
98 | if (strcmp(filename, list_ptr->name) == 0) { | ||
99 | deb_extract_list = append_archive_list(deb_extract_list, list_ptr); | ||
100 | break; | ||
101 | } | ||
102 | list_ptr = list_ptr->next; | ||
103 | } | ||
104 | } else { | ||
105 | deb_extract_list = tar_headers; | ||
106 | } | ||
107 | |||
108 | /* seek to the start of the .tar.gz file within the ar file*/ | ||
109 | if (seek_sub_file(deb_stream, ar_headers, ared_file) == EXIT_FAILURE) { | ||
110 | error_msg("Couldnt seek to ar file"); | ||
111 | } | ||
112 | |||
113 | /* open a stream of decompressed data */ | ||
114 | uncompressed_stream = fdopen(gz_open(deb_stream, &gunzip_pid), "r"); | ||
115 | |||
116 | output_buffer = extract_archive(uncompressed_stream, out_stream, deb_extract_list, extract_function, prefix); | ||
117 | |||
118 | gz_close(gunzip_pid); | ||
119 | fclose(deb_stream); | ||
120 | fclose(uncompressed_stream); | ||
121 | free(ared_file); | ||
122 | |||
123 | return(output_buffer); | ||
124 | } \ No newline at end of file | ||