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authorGlenn L McGrath <bug1@ihug.co.nz>2001-06-13 07:26:39 +0000
committerGlenn L McGrath <bug1@ihug.co.nz>2001-06-13 07:26:39 +0000
commit9aff9036035fbed074e8e711b96c5c934e668884 (patch)
tree4db8fdd4b9f429b416d068794c79bfc0df844e20
parentdab3d46b9d35e0a0279b3700fe411f876bb25781 (diff)
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Reorganise archive extraction code
-rw-r--r--Makefile28
-rw-r--r--ar.c88
-rw-r--r--archival/ar.c88
-rw-r--r--archival/dpkg.c25
-rw-r--r--archival/dpkg_deb.c105
-rw-r--r--dpkg.c25
-rw-r--r--dpkg_deb.c105
-rw-r--r--include/libbb.h51
-rw-r--r--libbb/deb_extract.c96
-rw-r--r--libbb/get_ar_headers.c15
-rw-r--r--libbb/libbb.h51
11 files changed, 332 insertions, 345 deletions
diff --git a/Makefile b/Makefile
index 2af152516..f8e60443e 100644
--- a/Makefile
+++ b/Makefile
@@ -236,21 +236,21 @@ endif
236 236
237LIBBB = libbb 237LIBBB = libbb
238LIBBB_LIB = libbb.a 238LIBBB_LIB = libbb.a
239LIBBB_CSRC= ask_confirmation.c chomp.c \ 239LIBBB_CSRC= append_archive_list.c add_from_archive_list.c ask_confirmation.c \
240concat_path_file.c copy_file.c copy_file_chunk.c create_path.c \ 240chomp.c concat_path_file.c copy_file.c copy_file_chunk.c create_path.c \
241daemon.c deb_extract.c device_open.c error_msg.c error_msg_and_die.c \ 241daemon.c deb_extract.c device_open.c error_msg.c error_msg_and_die.c \
242find_mount_point.c find_pid_by_name.c find_root_device.c full_read.c \ 242extract_archive.c fgets_str.c find_mount_point.c find_pid_by_name.c \
243full_write.c get_ar_headers.c get_console.c get_last_path_component.c \ 243find_root_device.c full_read.c full_write.c get_ar_headers.c get_console.c \
244get_line_from_file.c gz_open.c human_readable.c isdirectory.c \ 244get_last_path_component.c get_line_from_file.c get_tar_headers.c \
245kernel_version.c loop.c mode_string.c module_syscalls.c mtab.c mtab_file.c \ 245get_tar_gz_headers.c gz_open.c human_readable.c isdirectory.c kernel_version.c \
246my_getgrnam.c my_getgrgid.c my_getpwnam.c my_getpwnamegid.c my_getpwuid.c \ 246loop.c mode_string.c module_syscalls.c mtab.c mtab_file.c my_getgrnam.c \
247parse_mode.c parse_number.c perror_msg.c perror_msg_and_die.c print_file.c \ 247my_getgrgid.c my_getpwnam.c my_getpwnamegid.c my_getpwuid.c parse_mode.c \
248process_escape_sequence.c read_package_field.c read_text_file_to_buffer.c \ 248parse_number.c perror_msg.c perror_msg_and_die.c print_file.c \
249recursive_action.c safe_read.c safe_strncpy.c seek_ared_file.c syscalls.c \ 249process_escape_sequence.c read_package_field.c recursive_action.c safe_read.c \
250syslog_msg_with_name.c time_string.c trim.c untar.c unzip.c vdprintf.c \ 250safe_strncpy.c syscalls.c syslog_msg_with_name.c time_string.c \
251verror_msg.c vperror_msg.c wfopen.c xfuncs.c xgetcwd.c xreadlink.c \ 251trim.c unzip.c vdprintf.c verror_msg.c vperror_msg.c wfopen.c xfuncs.c \
252xregcomp.c interface.c remove_file.c last_char_is.c copyfd.c \ 252xgetcwd.c xreadlink.c xregcomp.c interface.c remove_file.c last_char_is.c \
253vherror_msg.c herror_msg.c herror_msg_and_die.c xgethostbyname.c 253copyfd.c vherror_msg.c herror_msg.c herror_msg_and_die.c xgethostbyname.c
254LIBBB_OBJS=$(patsubst %.c,$(LIBBB)/%.o, $(LIBBB_CSRC)) 254LIBBB_OBJS=$(patsubst %.c,$(LIBBB)/%.o, $(LIBBB_CSRC))
255LIBBB_CFLAGS = -I$(LIBBB) 255LIBBB_CFLAGS = -I$(LIBBB)
256ifneq ($(strip $(BB_SRC_DIR)),) 256ifneq ($(strip $(BB_SRC_DIR)),)
diff --git a/ar.c b/ar.c
index 08cd5c501..7359f4910 100644
--- a/ar.c
+++ b/ar.c
@@ -30,36 +30,27 @@
30 30
31extern int ar_main(int argc, char **argv) 31extern int ar_main(int argc, char **argv)
32{ 32{
33 const int preserve_date = 1; /* preserve original dates */ 33 FILE *src_stream = NULL;
34 const int verbose = 2; /* be verbose */ 34 int extract_function = 0, opt = 0;
35 const int display = 4; /* display contents */ 35 file_headers_t *head;
36 const int extract_to_file = 8; /* extract contents of archive */ 36 file_headers_t *ar_extract_list = NULL;
37 const int extract_to_stdout = 16; /* extract to stdout */
38
39 FILE *src_file = NULL, *dst_file = NULL;
40 int funct = 0, opt=0;
41
42 ar_headers_t *head, *ar_extract_list=NULL;
43
44 ar_extract_list = (ar_headers_t *) xcalloc(1, sizeof(ar_headers_t));
45 head = (ar_headers_t *) xcalloc(1, sizeof(ar_headers_t));
46 37
47 while ((opt = getopt(argc, argv, "ovtpx")) != -1) { 38 while ((opt = getopt(argc, argv, "ovtpx")) != -1) {
48 switch (opt) { 39 switch (opt) {
49 case 'o': 40 case 'o':
50 funct |= preserve_date; 41 extract_function |= extract_preserve_date;
51 break; 42 break;
52 case 'v': 43 case 'v':
53 funct |= verbose; 44 extract_function |= extract_verbose_list;
54 break; 45 break;
55 case 't': 46 case 't':
56 funct |= display; 47 extract_function |= extract_list;
57 break; 48 break;
58 case 'p': 49 case 'p':
59 funct |= extract_to_stdout; 50 extract_function |= extract_to_stdout;
60 break; 51 break;
61 case 'x': 52 case 'x':
62 funct |= extract_to_file; 53 extract_function |= extract_all_to_fs;
63 break; 54 break;
64 default: 55 default:
65 show_usage(); 56 show_usage();
@@ -71,57 +62,28 @@ extern int ar_main(int argc, char **argv)
71 show_usage(); 62 show_usage();
72 } 63 }
73 64
74 if ( (src_file = wfopen(argv[optind], "r")) < 0) { 65 src_stream = xfopen(argv[optind++], "r");
75 error_msg_and_die("Cannot read %s", argv[optind]); 66 head = get_ar_headers(src_stream);
76 }
77 67
78 optind++;
79 head = get_ar_headers(src_file);
80 /* find files to extract or display */ 68 /* find files to extract or display */
81 /* search through argv and build extract list */ 69 /* search through argv and build extract list */
82 for (;optind < argc; optind++) { 70 ar_extract_list = (file_headers_t *) xcalloc(1, sizeof(file_headers_t));
83 ar_headers_t *ar_entry; 71 if (optind < argc) {
84 ar_entry = (ar_headers_t *) xcalloc(1, sizeof(ar_headers_t)); 72 while (optind < argc) {
85 ar_entry = head; 73 ar_extract_list = add_from_archive_list(head, ar_extract_list, argv[optind]);
86 while (ar_entry->next != NULL) { 74 optind++;
87 if (strcmp(argv[optind], ar_entry->name) == 0) {
88 ar_headers_t *tmp;
89 tmp = (ar_headers_t *) xmalloc(sizeof(ar_headers_t));
90 *tmp = *ar_extract_list;
91 *ar_extract_list = *ar_entry;
92 ar_extract_list->next = tmp;
93 break;
94 }
95 ar_entry=ar_entry->next;
96 } 75 }
97 } 76 } else {
98
99 /* if individual files not found extract all files */
100 if (ar_extract_list->next==NULL) {
101 ar_extract_list = head; 77 ar_extract_list = head;
102 } 78 }
103 79
104 /* find files to extract or display */ 80 /* If there isnt even one possible entry then abort */
105 while (ar_extract_list->next != NULL) { 81 if (ar_extract_list->name == NULL) {
106 if (funct & extract_to_file) { 82 error_msg_and_die("No files to extract");
107 dst_file = wfopen(ar_extract_list->name, "w"); 83 }
108 } 84
109 else if (funct & extract_to_stdout) { 85 fseek(src_stream, 0, SEEK_SET);
110 dst_file = stdout; 86 extract_archive(src_stream, stdout, ar_extract_list, extract_function, "./");
111 } 87
112 if ((funct & extract_to_file) || (funct & extract_to_stdout)) {
113 fseek(src_file, ar_extract_list->offset, SEEK_SET);
114 copy_file_chunk(src_file, dst_file, ar_extract_list->size);
115 }
116 if (funct & verbose) {
117 printf("%s %d/%d %8d %s ", mode_string(ar_extract_list->mode),
118 ar_extract_list->uid, ar_extract_list->gid,
119 (int) ar_extract_list->size, time_string(ar_extract_list->mtime));
120 }
121 if ((funct & display) || (funct & verbose)){
122 puts(ar_extract_list->name);
123 }
124 ar_extract_list = ar_extract_list->next;
125 }
126 return EXIT_SUCCESS; 88 return EXIT_SUCCESS;
127} 89}
diff --git a/archival/ar.c b/archival/ar.c
index 08cd5c501..7359f4910 100644
--- a/archival/ar.c
+++ b/archival/ar.c
@@ -30,36 +30,27 @@
30 30
31extern int ar_main(int argc, char **argv) 31extern int ar_main(int argc, char **argv)
32{ 32{
33 const int preserve_date = 1; /* preserve original dates */ 33 FILE *src_stream = NULL;
34 const int verbose = 2; /* be verbose */ 34 int extract_function = 0, opt = 0;
35 const int display = 4; /* display contents */ 35 file_headers_t *head;
36 const int extract_to_file = 8; /* extract contents of archive */ 36 file_headers_t *ar_extract_list = NULL;
37 const int extract_to_stdout = 16; /* extract to stdout */
38
39 FILE *src_file = NULL, *dst_file = NULL;
40 int funct = 0, opt=0;
41
42 ar_headers_t *head, *ar_extract_list=NULL;
43
44 ar_extract_list = (ar_headers_t *) xcalloc(1, sizeof(ar_headers_t));
45 head = (ar_headers_t *) xcalloc(1, sizeof(ar_headers_t));
46 37
47 while ((opt = getopt(argc, argv, "ovtpx")) != -1) { 38 while ((opt = getopt(argc, argv, "ovtpx")) != -1) {
48 switch (opt) { 39 switch (opt) {
49 case 'o': 40 case 'o':
50 funct |= preserve_date; 41 extract_function |= extract_preserve_date;
51 break; 42 break;
52 case 'v': 43 case 'v':
53 funct |= verbose; 44 extract_function |= extract_verbose_list;
54 break; 45 break;
55 case 't': 46 case 't':
56 funct |= display; 47 extract_function |= extract_list;
57 break; 48 break;
58 case 'p': 49 case 'p':
59 funct |= extract_to_stdout; 50 extract_function |= extract_to_stdout;
60 break; 51 break;
61 case 'x': 52 case 'x':
62 funct |= extract_to_file; 53 extract_function |= extract_all_to_fs;
63 break; 54 break;
64 default: 55 default:
65 show_usage(); 56 show_usage();
@@ -71,57 +62,28 @@ extern int ar_main(int argc, char **argv)
71 show_usage(); 62 show_usage();
72 } 63 }
73 64
74 if ( (src_file = wfopen(argv[optind], "r")) < 0) { 65 src_stream = xfopen(argv[optind++], "r");
75 error_msg_and_die("Cannot read %s", argv[optind]); 66 head = get_ar_headers(src_stream);
76 }
77 67
78 optind++;
79 head = get_ar_headers(src_file);
80 /* find files to extract or display */ 68 /* find files to extract or display */
81 /* search through argv and build extract list */ 69 /* search through argv and build extract list */
82 for (;optind < argc; optind++) { 70 ar_extract_list = (file_headers_t *) xcalloc(1, sizeof(file_headers_t));
83 ar_headers_t *ar_entry; 71 if (optind < argc) {
84 ar_entry = (ar_headers_t *) xcalloc(1, sizeof(ar_headers_t)); 72 while (optind < argc) {
85 ar_entry = head; 73 ar_extract_list = add_from_archive_list(head, ar_extract_list, argv[optind]);
86 while (ar_entry->next != NULL) { 74 optind++;
87 if (strcmp(argv[optind], ar_entry->name) == 0) {
88 ar_headers_t *tmp;
89 tmp = (ar_headers_t *) xmalloc(sizeof(ar_headers_t));
90 *tmp = *ar_extract_list;
91 *ar_extract_list = *ar_entry;
92 ar_extract_list->next = tmp;
93 break;
94 }
95 ar_entry=ar_entry->next;
96 } 75 }
97 } 76 } else {
98
99 /* if individual files not found extract all files */
100 if (ar_extract_list->next==NULL) {
101 ar_extract_list = head; 77 ar_extract_list = head;
102 } 78 }
103 79
104 /* find files to extract or display */ 80 /* If there isnt even one possible entry then abort */
105 while (ar_extract_list->next != NULL) { 81 if (ar_extract_list->name == NULL) {
106 if (funct & extract_to_file) { 82 error_msg_and_die("No files to extract");
107 dst_file = wfopen(ar_extract_list->name, "w"); 83 }
108 } 84
109 else if (funct & extract_to_stdout) { 85 fseek(src_stream, 0, SEEK_SET);
110 dst_file = stdout; 86 extract_archive(src_stream, stdout, ar_extract_list, extract_function, "./");
111 } 87
112 if ((funct & extract_to_file) || (funct & extract_to_stdout)) {
113 fseek(src_file, ar_extract_list->offset, SEEK_SET);
114 copy_file_chunk(src_file, dst_file, ar_extract_list->size);
115 }
116 if (funct & verbose) {
117 printf("%s %d/%d %8d %s ", mode_string(ar_extract_list->mode),
118 ar_extract_list->uid, ar_extract_list->gid,
119 (int) ar_extract_list->size, time_string(ar_extract_list->mtime));
120 }
121 if ((funct & display) || (funct & verbose)){
122 puts(ar_extract_list->name);
123 }
124 ar_extract_list = ar_extract_list->next;
125 }
126 return EXIT_SUCCESS; 88 return EXIT_SUCCESS;
127} 89}
diff --git a/archival/dpkg.c b/archival/dpkg.c
index 0010df537..4224672ec 100644
--- a/archival/dpkg.c
+++ b/archival/dpkg.c
@@ -13,7 +13,6 @@
13 13
14#include "busybox.h" 14#include "busybox.h"
15 15
16
17#define DEPENDSMAX 64 /* maximum number of depends we can handle */ 16#define DEPENDSMAX 64 /* maximum number of depends we can handle */
18 17
19/* Should we do full dependency checking? */ 18/* Should we do full dependency checking? */
@@ -487,7 +486,7 @@ static void *status_read(void)
487 return(NULL); 486 return(NULL);
488 } 487 }
489 488
490 while ( (package_control_buffer = read_text_file_to_buffer(f)) != NULL) { 489 while ( (package_control_buffer = fgets_str(f, "\n\n")) != NULL) {
491 m = (package_t *)xcalloc(1, sizeof(package_t)); 490 m = (package_t *)xcalloc(1, sizeof(package_t));
492 fill_package_struct(m, package_control_buffer); 491 fill_package_struct(m, package_control_buffer);
493 if (m->package) { 492 if (m->package) {
@@ -650,24 +649,26 @@ static int dpkg_doconfigure(package_t *pkg)
650 649
651static int dpkg_dounpack(package_t *pkg) 650static int dpkg_dounpack(package_t *pkg)
652{ 651{
653 int r = 0; 652 FILE *out_stream;
653 char *info_prefix;
654 int status = TRUE; 654 int status = TRUE;
655 char *lst_path; 655 int r = 0;
656 656
657 DPRINTF("Unpacking %s\n", pkg->package); 657 DPRINTF("Unpacking %s\n", pkg->package);
658 658
659 /* extract the data file */ 659 /* extract the data file */
660 deb_extract(pkg->filename, extract_extract, "/", NULL); 660 deb_extract(pkg->filename, stdout, (extract_data_tar_gz | extract_all_to_fs), "/", NULL);
661 661
662 /* extract the control files */ 662 /* extract the control files */
663 deb_extract(pkg->filename, extract_control, infodir, pkg->package); 663 info_prefix = (char *) malloc(strlen(pkg->package) + strlen(infodir) + 2 + 5 + 1);
664 sprintf(info_prefix, "%s/%s.", infodir, pkg->package);
665 deb_extract(pkg->package, stdout, (extract_control_tar_gz | extract_all_to_fs), info_prefix, NULL);
664 666
665 /* Create the list file */ 667 /* Create the list file */
666 lst_path = xmalloc(strlen(infodir) + strlen(pkg->package) + 6); 668 strcat(info_prefix, "list");
667 strcpy(lst_path, infodir); 669 out_stream = wfopen(info_prefix, "w");
668 strcat(lst_path, pkg->package); 670 deb_extract(pkg->package, out_stream, (extract_data_tar_gz | extract_list), NULL, NULL);
669 strcat(lst_path, ".list"); 671 fclose(out_stream);
670 deb_extract(pkg->filename, extract_contents_to_file, lst_path, NULL);
671 672
672 pkg->state_want = state_want_install; 673 pkg->state_want = state_want_install;
673 pkg->state_flag = state_flag_ok; 674 pkg->state_flag = state_flag_ok;
@@ -692,7 +693,7 @@ static int dpkg_read_control(package_t *pkg)
692 if ((pkg_file = wfopen(pkg->filename, "r")) == NULL) { 693 if ((pkg_file = wfopen(pkg->filename, "r")) == NULL) {
693 return EXIT_FAILURE; 694 return EXIT_FAILURE;
694 } 695 }
695 control_buffer = deb_extract(pkg->filename, extract_field, NULL, NULL); 696 control_buffer = deb_extract(pkg->filename, stdout, (extract_control_tar_gz | extract_one_to_buffer), NULL, "./control");
696 fill_package_struct(pkg, control_buffer); 697 fill_package_struct(pkg, control_buffer);
697 return EXIT_SUCCESS; 698 return EXIT_SUCCESS;
698} 699}
diff --git a/archival/dpkg_deb.c b/archival/dpkg_deb.c
index 17b5476d0..400f2385a 100644
--- a/archival/dpkg_deb.c
+++ b/archival/dpkg_deb.c
@@ -21,33 +21,54 @@
21 21
22extern int dpkg_deb_main(int argc, char **argv) 22extern int dpkg_deb_main(int argc, char **argv)
23{ 23{
24 char *argument = NULL; 24 char *prefix = NULL;
25 char *filename = NULL;
25 char *output_buffer = NULL; 26 char *output_buffer = NULL;
26 int opt = 0; 27 int opt = 0;
27 int optflag = 0; 28 int arg_type = 0;
29 int deb_extract_funct = 0;
28 30
31 const int arg_type_prefix = 1;
32 const int arg_type_field = 2;
33 const int arg_type_filename = 4;
34// const int arg_type_un_ar_gz = 8;
35
29 while ((opt = getopt(argc, argv, "ceftXxI")) != -1) { 36 while ((opt = getopt(argc, argv, "ceftXxI")) != -1) {
30 switch (opt) { 37 switch (opt) {
31 case 'c': 38 case 'c':
32 optflag |= extract_contents; 39 deb_extract_funct |= extract_data_tar_gz;
40 deb_extract_funct |= extract_verbose_list;
33 break; 41 break;
34 case 'e': 42 case 'e':
35 optflag |= extract_control; 43 arg_type = arg_type_prefix;
44 deb_extract_funct |= extract_control_tar_gz;
45 deb_extract_funct |= extract_all_to_fs;
36 break; 46 break;
37 case 'f': 47 case 'f':
38 optflag |= extract_field; 48 arg_type = arg_type_field;
49 deb_extract_funct |= extract_control_tar_gz;
50 deb_extract_funct |= extract_one_to_buffer;
51 filename = xstrdup("./control");
39 break; 52 break;
40 case 't': 53 case 't': /* --fsys-tarfile, i just made up this short name */
41 optflag |= extract_fsys_tarfile; 54 /* Integrate the functionality needed with some code from ar.c */
55 error_msg_and_die("Option disabled");
56// arg_type = arg_type_un_ar_gz;
42 break; 57 break;
43 case 'X': 58 case 'X':
44 optflag |= extract_verbose_extract; 59 arg_type = arg_type_prefix;
45 break; 60 deb_extract_funct |= extract_data_tar_gz;
61 deb_extract_funct |= extract_all_to_fs;
62 deb_extract_funct |= extract_list;
46 case 'x': 63 case 'x':
47 optflag |= extract_extract; 64 arg_type = arg_type_prefix;
65 deb_extract_funct |= extract_data_tar_gz;
66 deb_extract_funct |= extract_all_to_fs;
48 break; 67 break;
49 case 'I': 68 case 'I':
50 optflag |= extract_info; 69 arg_type = arg_type_filename;
70 deb_extract_funct |= extract_control_tar_gz;
71 deb_extract_funct |= extract_one_to_buffer;
51 break; 72 break;
52 default: 73 default:
53 show_usage(); 74 show_usage();
@@ -58,48 +79,42 @@ extern int dpkg_deb_main(int argc, char **argv)
58 show_usage(); 79 show_usage();
59 } 80 }
60 81
61 switch (optflag) { 82 /* Workout where to extract the files */
62 case (extract_control): 83 if (arg_type == arg_type_prefix) {
63 case (extract_extract): 84 /* argument is a dir name */
64 case (extract_verbose_extract): 85 if ((optind + 1) == argc ) {
65 /* argument is a dir name */ 86 prefix = xstrdup("./DEBIAN/");
66 if ( (optind + 1) == argc ) { 87 } else {
67 argument = xstrdup("DEBIAN"); 88 prefix = (char *) xmalloc(strlen(argv[optind + 1]) + 2);
68 } else { 89 strcpy(prefix, argv[optind + 1]);
69 argument = xstrdup(argv[optind + 1]); 90 /* Make sure the directory has a trailing '/' */
70 } 91 if (last_char_is(prefix, '/') == NULL) {
71 break; 92 strcat(prefix, "/");
72 case (extract_field):
73 /* argument is a control field name */
74 if ((optind + 1) != argc) {
75 argument = xstrdup(argv[optind + 1]);
76 }
77 break;
78 case (extract_info):
79 /* argument is a control field name */
80 if ((optind + 1) != argc) {
81 argument = xstrdup(argv[optind + 1]);
82 break;
83 } else {
84 error_msg("-I currently requires a filename to be specifies");
85 return(EXIT_FAILURE);
86 } 93 }
87 /* argument is a filename */ 94 }
88 default:
89 } 95 }
90 96
91 output_buffer = deb_extract(argv[optind], optflag, argument, NULL); 97 if (arg_type == arg_type_filename) {
98 if ((optind + 1) != argc) {
99 filename = xstrdup(argv[optind + 1]);
100 } else {
101 error_msg_and_die("-I currently requires a filename to be specified");
102 }
103 }
92 104
93 if (optflag & extract_field) { 105 output_buffer = deb_extract(argv[optind], stdout, deb_extract_funct, prefix, filename);
106
107 if ((arg_type == arg_type_filename) && (output_buffer != NULL)) {
108 puts(output_buffer);
109 }
110 else if (arg_type == arg_type_field) {
94 char *field = NULL; 111 char *field = NULL;
95 int field_length = 0;
96 int field_start = 0; 112 int field_start = 0;
97 113
98 while ((field = read_package_field(&output_buffer[field_start])) != NULL) { 114 while ((field = read_package_field(&output_buffer[field_start])) != NULL) {
99 field_length = strlen(field); 115 field_start += (strlen(field) + 1);
100 field_start += (field_length + 1); 116 if (strstr(field, argv[optind + 1]) == field) {
101 if (strstr(field, argument) == field) { 117 puts(field + strlen(argv[optind + 1]) + 2);
102 puts(field + strlen(argument) + 2);
103 } 118 }
104 free(field); 119 free(field);
105 } 120 }
diff --git a/dpkg.c b/dpkg.c
index 0010df537..4224672ec 100644
--- a/dpkg.c
+++ b/dpkg.c
@@ -13,7 +13,6 @@
13 13
14#include "busybox.h" 14#include "busybox.h"
15 15
16
17#define DEPENDSMAX 64 /* maximum number of depends we can handle */ 16#define DEPENDSMAX 64 /* maximum number of depends we can handle */
18 17
19/* Should we do full dependency checking? */ 18/* Should we do full dependency checking? */
@@ -487,7 +486,7 @@ static void *status_read(void)
487 return(NULL); 486 return(NULL);
488 } 487 }
489 488
490 while ( (package_control_buffer = read_text_file_to_buffer(f)) != NULL) { 489 while ( (package_control_buffer = fgets_str(f, "\n\n")) != NULL) {
491 m = (package_t *)xcalloc(1, sizeof(package_t)); 490 m = (package_t *)xcalloc(1, sizeof(package_t));
492 fill_package_struct(m, package_control_buffer); 491 fill_package_struct(m, package_control_buffer);
493 if (m->package) { 492 if (m->package) {
@@ -650,24 +649,26 @@ static int dpkg_doconfigure(package_t *pkg)
650 649
651static int dpkg_dounpack(package_t *pkg) 650static int dpkg_dounpack(package_t *pkg)
652{ 651{
653 int r = 0; 652 FILE *out_stream;
653 char *info_prefix;
654 int status = TRUE; 654 int status = TRUE;
655 char *lst_path; 655 int r = 0;
656 656
657 DPRINTF("Unpacking %s\n", pkg->package); 657 DPRINTF("Unpacking %s\n", pkg->package);
658 658
659 /* extract the data file */ 659 /* extract the data file */
660 deb_extract(pkg->filename, extract_extract, "/", NULL); 660 deb_extract(pkg->filename, stdout, (extract_data_tar_gz | extract_all_to_fs), "/", NULL);
661 661
662 /* extract the control files */ 662 /* extract the control files */
663 deb_extract(pkg->filename, extract_control, infodir, pkg->package); 663 info_prefix = (char *) malloc(strlen(pkg->package) + strlen(infodir) + 2 + 5 + 1);
664 sprintf(info_prefix, "%s/%s.", infodir, pkg->package);
665 deb_extract(pkg->package, stdout, (extract_control_tar_gz | extract_all_to_fs), info_prefix, NULL);
664 666
665 /* Create the list file */ 667 /* Create the list file */
666 lst_path = xmalloc(strlen(infodir) + strlen(pkg->package) + 6); 668 strcat(info_prefix, "list");
667 strcpy(lst_path, infodir); 669 out_stream = wfopen(info_prefix, "w");
668 strcat(lst_path, pkg->package); 670 deb_extract(pkg->package, out_stream, (extract_data_tar_gz | extract_list), NULL, NULL);
669 strcat(lst_path, ".list"); 671 fclose(out_stream);
670 deb_extract(pkg->filename, extract_contents_to_file, lst_path, NULL);
671 672
672 pkg->state_want = state_want_install; 673 pkg->state_want = state_want_install;
673 pkg->state_flag = state_flag_ok; 674 pkg->state_flag = state_flag_ok;
@@ -692,7 +693,7 @@ static int dpkg_read_control(package_t *pkg)
692 if ((pkg_file = wfopen(pkg->filename, "r")) == NULL) { 693 if ((pkg_file = wfopen(pkg->filename, "r")) == NULL) {
693 return EXIT_FAILURE; 694 return EXIT_FAILURE;
694 } 695 }
695 control_buffer = deb_extract(pkg->filename, extract_field, NULL, NULL); 696 control_buffer = deb_extract(pkg->filename, stdout, (extract_control_tar_gz | extract_one_to_buffer), NULL, "./control");
696 fill_package_struct(pkg, control_buffer); 697 fill_package_struct(pkg, control_buffer);
697 return EXIT_SUCCESS; 698 return EXIT_SUCCESS;
698} 699}
diff --git a/dpkg_deb.c b/dpkg_deb.c
index 17b5476d0..400f2385a 100644
--- a/dpkg_deb.c
+++ b/dpkg_deb.c
@@ -21,33 +21,54 @@
21 21
22extern int dpkg_deb_main(int argc, char **argv) 22extern int dpkg_deb_main(int argc, char **argv)
23{ 23{
24 char *argument = NULL; 24 char *prefix = NULL;
25 char *filename = NULL;
25 char *output_buffer = NULL; 26 char *output_buffer = NULL;
26 int opt = 0; 27 int opt = 0;
27 int optflag = 0; 28 int arg_type = 0;
29 int deb_extract_funct = 0;
28 30
31 const int arg_type_prefix = 1;
32 const int arg_type_field = 2;
33 const int arg_type_filename = 4;
34// const int arg_type_un_ar_gz = 8;
35
29 while ((opt = getopt(argc, argv, "ceftXxI")) != -1) { 36 while ((opt = getopt(argc, argv, "ceftXxI")) != -1) {
30 switch (opt) { 37 switch (opt) {
31 case 'c': 38 case 'c':
32 optflag |= extract_contents; 39 deb_extract_funct |= extract_data_tar_gz;
40 deb_extract_funct |= extract_verbose_list;
33 break; 41 break;
34 case 'e': 42 case 'e':
35 optflag |= extract_control; 43 arg_type = arg_type_prefix;
44 deb_extract_funct |= extract_control_tar_gz;
45 deb_extract_funct |= extract_all_to_fs;
36 break; 46 break;
37 case 'f': 47 case 'f':
38 optflag |= extract_field; 48 arg_type = arg_type_field;
49 deb_extract_funct |= extract_control_tar_gz;
50 deb_extract_funct |= extract_one_to_buffer;
51 filename = xstrdup("./control");
39 break; 52 break;
40 case 't': 53 case 't': /* --fsys-tarfile, i just made up this short name */
41 optflag |= extract_fsys_tarfile; 54 /* Integrate the functionality needed with some code from ar.c */
55 error_msg_and_die("Option disabled");
56// arg_type = arg_type_un_ar_gz;
42 break; 57 break;
43 case 'X': 58 case 'X':
44 optflag |= extract_verbose_extract; 59 arg_type = arg_type_prefix;
45 break; 60 deb_extract_funct |= extract_data_tar_gz;
61 deb_extract_funct |= extract_all_to_fs;
62 deb_extract_funct |= extract_list;
46 case 'x': 63 case 'x':
47 optflag |= extract_extract; 64 arg_type = arg_type_prefix;
65 deb_extract_funct |= extract_data_tar_gz;
66 deb_extract_funct |= extract_all_to_fs;
48 break; 67 break;
49 case 'I': 68 case 'I':
50 optflag |= extract_info; 69 arg_type = arg_type_filename;
70 deb_extract_funct |= extract_control_tar_gz;
71 deb_extract_funct |= extract_one_to_buffer;
51 break; 72 break;
52 default: 73 default:
53 show_usage(); 74 show_usage();
@@ -58,48 +79,42 @@ extern int dpkg_deb_main(int argc, char **argv)
58 show_usage(); 79 show_usage();
59 } 80 }
60 81
61 switch (optflag) { 82 /* Workout where to extract the files */
62 case (extract_control): 83 if (arg_type == arg_type_prefix) {
63 case (extract_extract): 84 /* argument is a dir name */
64 case (extract_verbose_extract): 85 if ((optind + 1) == argc ) {
65 /* argument is a dir name */ 86 prefix = xstrdup("./DEBIAN/");
66 if ( (optind + 1) == argc ) { 87 } else {
67 argument = xstrdup("DEBIAN"); 88 prefix = (char *) xmalloc(strlen(argv[optind + 1]) + 2);
68 } else { 89 strcpy(prefix, argv[optind + 1]);
69 argument = xstrdup(argv[optind + 1]); 90 /* Make sure the directory has a trailing '/' */
70 } 91 if (last_char_is(prefix, '/') == NULL) {
71 break; 92 strcat(prefix, "/");
72 case (extract_field):
73 /* argument is a control field name */
74 if ((optind + 1) != argc) {
75 argument = xstrdup(argv[optind + 1]);
76 }
77 break;
78 case (extract_info):
79 /* argument is a control field name */
80 if ((optind + 1) != argc) {
81 argument = xstrdup(argv[optind + 1]);
82 break;
83 } else {
84 error_msg("-I currently requires a filename to be specifies");
85 return(EXIT_FAILURE);
86 } 93 }
87 /* argument is a filename */ 94 }
88 default:
89 } 95 }
90 96
91 output_buffer = deb_extract(argv[optind], optflag, argument, NULL); 97 if (arg_type == arg_type_filename) {
98 if ((optind + 1) != argc) {
99 filename = xstrdup(argv[optind + 1]);
100 } else {
101 error_msg_and_die("-I currently requires a filename to be specified");
102 }
103 }
92 104
93 if (optflag & extract_field) { 105 output_buffer = deb_extract(argv[optind], stdout, deb_extract_funct, prefix, filename);
106
107 if ((arg_type == arg_type_filename) && (output_buffer != NULL)) {
108 puts(output_buffer);
109 }
110 else if (arg_type == arg_type_field) {
94 char *field = NULL; 111 char *field = NULL;
95 int field_length = 0;
96 int field_start = 0; 112 int field_start = 0;
97 113
98 while ((field = read_package_field(&output_buffer[field_start])) != NULL) { 114 while ((field = read_package_field(&output_buffer[field_start])) != NULL) {
99 field_length = strlen(field); 115 field_start += (strlen(field) + 1);
100 field_start += (field_length + 1); 116 if (strstr(field, argv[optind + 1]) == field) {
101 if (strstr(field, argument) == field) { 117 puts(field + strlen(argv[optind + 1]) + 2);
102 puts(field + strlen(argument) + 2);
103 } 118 }
104 free(field); 119 free(field);
105 } 120 }
diff --git a/include/libbb.h b/include/libbb.h
index f99d25780..f24a38109 100644
--- a/include/libbb.h
+++ b/include/libbb.h
@@ -213,36 +213,41 @@ char *xreadlink(const char *path);
213char *concat_path_file(const char *path, const char *filename); 213char *concat_path_file(const char *path, const char *filename);
214char *last_char_is(const char *s, int c); 214char *last_char_is(const char *s, int c);
215 215
216typedef struct ar_headers_s { 216typedef struct file_headers_s {
217 char *name; 217 char *name;
218 char *link_name;
218 off_t size; 219 off_t size;
219 uid_t uid; 220 uid_t uid;
220 gid_t gid; 221 gid_t gid;
221 mode_t mode; 222 mode_t mode;
222 time_t mtime; 223 time_t mtime;
223 off_t offset; 224 off_t offset;
224 struct ar_headers_s *next; 225 dev_t device;
225} ar_headers_t; 226 struct file_headers_s *next;
226extern ar_headers_t *get_ar_headers(FILE *in_file); 227} file_headers_t;
227extern int seek_ared_file(FILE *in_file, ar_headers_t *headers, const char *tar_gz_file); 228file_headers_t *get_ar_headers(FILE *in_file);
228 229file_headers_t *get_tar_headers(FILE *tar_stream);
229typedef enum extract_function_e { 230file_headers_t *get_tar_gz_headers(FILE *compressed_stream);
230 extract_contents = 1, 231file_headers_t *append_archive_list(file_headers_t *head, file_headers_t *tail_entry);
231 extract_control = 2, 232file_headers_t *add_from_archive_list(file_headers_t *master_list, file_headers_t *new_list, const char *name);
232 extract_info = 4, 233
233 extract_extract = 8, 234enum extract_functions_e {
234 extract_verbose_extract = 16, 235 extract_verbose_list = 1,
235 extract_list = 32, 236 extract_list = 2,
236 extract_fsys_tarfile = 64, 237 extract_one_to_buffer = 4,
237 extract_field = 128, 238 extract_to_stdout = 8,
238 extract_contents_to_file = 256 239 extract_all_to_fs = 16,
239} extract_function_t; 240 extract_preserve_date = 32,
240extern char *deb_extract(const char *package_filename, int function, 241 extract_data_tar_gz = 64,
241 const char *argument, const char *argument2); 242 extract_control_tar_gz = 128,
242extern char *untar(FILE *src_tar_file, FILE *output, int untar_function, 243 extract_unzip_only = 256
243 const char *argument, const char *file_prefix); 244};
244extern char *read_text_file_to_buffer(FILE *src_file); 245char *extract_archive(FILE *src_stream, FILE *out_stream, file_headers_t *extract_headers, int function, const char *prefix);
245extern char *read_package_field(const char *package_buffer); 246char *deb_extract(const char *package_filename, FILE *out_stream, const int function,
247 const char *prefix, const char *filename);
248char *read_package_field(const char *package_buffer);
249int seek_sub_file(FILE *in_file, file_headers_t *headers, const char *tar_gz_file);
250char *fgets_str(FILE *file, const char *terminating_string);
246 251
247extern int unzip(FILE *l_in_file, FILE *l_out_file); 252extern int unzip(FILE *l_in_file, FILE *l_out_file);
248extern void gz_close(int gunzip_pid); 253extern void gz_close(int gunzip_pid);
diff --git a/libbb/deb_extract.c b/libbb/deb_extract.c
index 36cebfa51..f64193970 100644
--- a/libbb/deb_extract.c
+++ b/libbb/deb_extract.c
@@ -27,71 +27,97 @@
27#include <unistd.h> 27#include <unistd.h>
28#include <stdlib.h> 28#include <stdlib.h>
29#include <string.h> 29#include <string.h>
30#include <signal.h>
31#include "libbb.h" 30#include "libbb.h"
32 31
32int 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
33/* 46/*
34 * The contents of argument depend on the value of function. 47 * The contents of argument depend on the value of function.
35 * It is either a dir name or a control file or field name(see dpkg_deb.c) 48 * It is either a dir name or a control file or field name(see dpkg_deb.c)
36 */ 49 */
37extern char *deb_extract(const char *package_filename, const int function, const char *argument, const char *argument2) 50char *deb_extract(const char *package_filename, FILE *out_stream, const int extract_function,
51 const char *prefix, const char *filename)
38{ 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));
39 58
40 FILE *deb_file, *uncompressed_file;
41 ar_headers_t *headers = NULL;
42 char *ared_file = NULL; 59 char *ared_file = NULL;
43 char *output_buffer = NULL; 60 char *output_buffer = NULL;
44 int gunzip_pid; 61 int gunzip_pid;
45 62
46 switch (function) { 63 if (extract_function & extract_control_tar_gz) {
47 case (extract_info): 64 ared_file = xstrdup("control.tar.gz");
48 case (extract_control): 65 }
49 case (extract_field): 66 else if (extract_function & extract_data_tar_gz) {
50 ared_file = xstrdup("control.tar.gz"); 67 ared_file = xstrdup("data.tar.gz");
51 break;
52 default:
53 ared_file = xstrdup("data.tar.gz");
54 break;
55 } 68 }
56 69
57 /* open the debian package to be worked on */ 70 /* open the debian package to be worked on */
58 deb_file = wfopen(package_filename, "r"); 71 deb_stream = wfopen(package_filename, "r");
59 72
60 headers = (ar_headers_t *) xmalloc(sizeof(ar_headers_t)); 73 ar_headers = (file_headers_t *) xmalloc(sizeof(file_headers_t));
61 74
62 /* get a linked list of all ar entries */ 75 /* get a linked list of all ar entries */
63 if ((headers = get_ar_headers(deb_file)) == NULL) { 76 ar_headers = get_ar_headers(deb_stream);
77 if (ar_headers == NULL) {
64 error_msg("Couldnt get ar headers\n"); 78 error_msg("Couldnt get ar headers\n");
65 return(NULL); 79 return(NULL);
66 } 80 }
67 81
68 /* seek to the start of the .tar.gz file within the ar file*/ 82 /* seek to the start of the .tar.gz file within the ar file*/
69 if (seek_ared_file(deb_file, headers, ared_file) == EXIT_FAILURE) { 83 fseek(deb_stream, 0, SEEK_SET);
70 error_msg("Couldnt seek to ar file"); 84 if (seek_sub_file(deb_stream, ar_headers, ared_file) == EXIT_FAILURE) {
85 error_msg("Couldnt seek to file %s", ared_file);
71 } 86 }
72 87
73 /* open a stream of decompressed data */ 88 /* get a linked list of all tar entries */
74 uncompressed_file = fdopen(gz_open(deb_file, &gunzip_pid), "r"); 89 tar_headers = get_tar_gz_headers(deb_stream);
75 90 if (tar_headers == NULL) {
76 if (function & extract_fsys_tarfile) { 91 error_msg("Couldnt get tar headers\n");
77 copy_file_chunk(uncompressed_file, stdout, -1); 92 return(NULL);
78 } else { 93 }
79 FILE *output;
80 94
81 if (function & extract_contents_to_file) { 95 if (extract_function & extract_one_to_buffer) {
82 output = wfopen(argument, "w"); 96 list_ptr = tar_headers;
83 } else { 97 while (list_ptr != NULL) {
84 output = stdout; 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;
85 } 103 }
104 } else {
105 deb_extract_list = tar_headers;
106 }
86 107
87 output_buffer = untar(uncompressed_file, output, function, argument, argument2); 108 /* seek to the start of the .tar.gz file within the ar file*/
88 if (output != stdout) { 109 if (seek_sub_file(deb_stream, ar_headers, ared_file) == EXIT_FAILURE) {
89 fclose(output); 110 error_msg("Couldnt seek to ar file");
90 }
91 } 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
92 gz_close(gunzip_pid); 118 gz_close(gunzip_pid);
93 fclose(deb_file); 119 fclose(deb_stream);
94 fclose(uncompressed_file); 120 fclose(uncompressed_stream);
95 free(ared_file); 121 free(ared_file);
96 122
97 return(output_buffer); 123 return(output_buffer);
diff --git a/libbb/get_ar_headers.c b/libbb/get_ar_headers.c
index 151caafe1..414498b4f 100644
--- a/libbb/get_ar_headers.c
+++ b/libbb/get_ar_headers.c
@@ -30,7 +30,7 @@
30#include <unistd.h> 30#include <unistd.h>
31#include "libbb.h" 31#include "libbb.h"
32 32
33extern ar_headers_t *get_ar_headers(FILE *in_file) 33file_headers_t *get_ar_headers(FILE *in_file)
34{ 34{
35 typedef struct raw_ar_header_s { /* Byte Offset */ 35 typedef struct raw_ar_header_s { /* Byte Offset */
36 char name[16]; /* 0-15 */ 36 char name[16]; /* 0-15 */
@@ -44,7 +44,7 @@ extern ar_headers_t *get_ar_headers(FILE *in_file)
44 44
45 raw_ar_header_t raw_ar_header; 45 raw_ar_header_t raw_ar_header;
46 46
47 ar_headers_t *ar_list, *ar_tmp, *ar_entry; 47 file_headers_t *ar_list, *ar_entry;
48 char ar_magic[8]; 48 char ar_magic[8];
49 char *long_name=NULL; 49 char *long_name=NULL;
50 50
@@ -59,10 +59,10 @@ extern ar_headers_t *get_ar_headers(FILE *in_file)
59 return(NULL); 59 return(NULL);
60 } 60 }
61 61
62 ar_list = (ar_headers_t *) xcalloc(1, sizeof(ar_headers_t)); 62 ar_list = (file_headers_t *) xcalloc(1, sizeof(file_headers_t));
63 63
64 while (fread((char *) &raw_ar_header, 1, 60, in_file) == 60) { 64 while (fread((char *) &raw_ar_header, 1, 60, in_file) == 60) {
65 ar_entry = (ar_headers_t *) xcalloc(1, sizeof(ar_headers_t)); 65 ar_entry = (file_headers_t *) xcalloc(1, sizeof(file_headers_t));
66 /* check the end of header markers are valid */ 66 /* check the end of header markers are valid */
67 if ((raw_ar_header.fmag[0] != '`') || (raw_ar_header.fmag[1] != '\n')) { 67 if ((raw_ar_header.fmag[0] != '`') || (raw_ar_header.fmag[1] != '\n')) {
68 char newline; 68 char newline;
@@ -113,12 +113,7 @@ extern ar_headers_t *get_ar_headers(FILE *in_file)
113 113
114 fseek(in_file, (off_t) ar_entry->size, SEEK_CUR); 114 fseek(in_file, (off_t) ar_entry->size, SEEK_CUR);
115 115
116 ar_tmp = (ar_headers_t *) xcalloc(1, sizeof(ar_headers_t)); 116 ar_list = append_archive_list(ar_list, ar_entry);
117 *ar_tmp = *ar_list;
118 *ar_list = *ar_entry;
119 free(ar_entry);
120 ar_list->next = ar_tmp;
121 } 117 }
122
123 return(ar_list); 118 return(ar_list);
124} 119}
diff --git a/libbb/libbb.h b/libbb/libbb.h
index f99d25780..f24a38109 100644
--- a/libbb/libbb.h
+++ b/libbb/libbb.h
@@ -213,36 +213,41 @@ char *xreadlink(const char *path);
213char *concat_path_file(const char *path, const char *filename); 213char *concat_path_file(const char *path, const char *filename);
214char *last_char_is(const char *s, int c); 214char *last_char_is(const char *s, int c);
215 215
216typedef struct ar_headers_s { 216typedef struct file_headers_s {
217 char *name; 217 char *name;
218 char *link_name;
218 off_t size; 219 off_t size;
219 uid_t uid; 220 uid_t uid;
220 gid_t gid; 221 gid_t gid;
221 mode_t mode; 222 mode_t mode;
222 time_t mtime; 223 time_t mtime;
223 off_t offset; 224 off_t offset;
224 struct ar_headers_s *next; 225 dev_t device;
225} ar_headers_t; 226 struct file_headers_s *next;
226extern ar_headers_t *get_ar_headers(FILE *in_file); 227} file_headers_t;
227extern int seek_ared_file(FILE *in_file, ar_headers_t *headers, const char *tar_gz_file); 228file_headers_t *get_ar_headers(FILE *in_file);
228 229file_headers_t *get_tar_headers(FILE *tar_stream);
229typedef enum extract_function_e { 230file_headers_t *get_tar_gz_headers(FILE *compressed_stream);
230 extract_contents = 1, 231file_headers_t *append_archive_list(file_headers_t *head, file_headers_t *tail_entry);
231 extract_control = 2, 232file_headers_t *add_from_archive_list(file_headers_t *master_list, file_headers_t *new_list, const char *name);
232 extract_info = 4, 233
233 extract_extract = 8, 234enum extract_functions_e {
234 extract_verbose_extract = 16, 235 extract_verbose_list = 1,
235 extract_list = 32, 236 extract_list = 2,
236 extract_fsys_tarfile = 64, 237 extract_one_to_buffer = 4,
237 extract_field = 128, 238 extract_to_stdout = 8,
238 extract_contents_to_file = 256 239 extract_all_to_fs = 16,
239} extract_function_t; 240 extract_preserve_date = 32,
240extern char *deb_extract(const char *package_filename, int function, 241 extract_data_tar_gz = 64,
241 const char *argument, const char *argument2); 242 extract_control_tar_gz = 128,
242extern char *untar(FILE *src_tar_file, FILE *output, int untar_function, 243 extract_unzip_only = 256
243 const char *argument, const char *file_prefix); 244};
244extern char *read_text_file_to_buffer(FILE *src_file); 245char *extract_archive(FILE *src_stream, FILE *out_stream, file_headers_t *extract_headers, int function, const char *prefix);
245extern char *read_package_field(const char *package_buffer); 246char *deb_extract(const char *package_filename, FILE *out_stream, const int function,
247 const char *prefix, const char *filename);
248char *read_package_field(const char *package_buffer);
249int seek_sub_file(FILE *in_file, file_headers_t *headers, const char *tar_gz_file);
250char *fgets_str(FILE *file, const char *terminating_string);
246 251
247extern int unzip(FILE *l_in_file, FILE *l_out_file); 252extern int unzip(FILE *l_in_file, FILE *l_out_file);
248extern void gz_close(int gunzip_pid); 253extern void gz_close(int gunzip_pid);