* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
-#include <stdio.h>
#include <stdlib.h>
-#include <fcntl.h>
+#include <string.h>
+#include <getopt.h>
#include "busybox.h"
-typedef struct ar_headers_s {
- char *name;
- size_t size;
- uid_t uid;
- gid_t gid;
- mode_t mode;
- time_t mtime;
- off_t offset;
- struct ar_headers_s *next;
-} ar_headers_t;
-
-extern ar_headers_t get_headers(int srcFd);
-extern int tar_unzip_init(int tarFd);
-extern int readTarFile(int tarFd, int extractFlag, int listFlag,
- int tostdoutFlag, int verboseFlag, char** extractList,
- char** excludeList);
-
extern int dpkg_deb_main(int argc, char **argv)
{
- const int dpkg_deb_contents = 1;
- const int dpkg_deb_control = 2;
-// const int dpkg_deb_info = 4;
- const int dpkg_deb_extract = 8;
- const int dpkg_deb_verbose_extract = 16;
- int opt=0;
- int optflag=0;
- int extract_flag = FALSE;
- int list_flag = FALSE;
- int verbose_flag = FALSE;
- int extract_to_stdout = FALSE;
- char ar_filename[15];
- int srcFd=0;
- int status=0;
- ar_headers_t *ar_headers = NULL;
- char **extract_list=NULL;
- char *target_dir=NULL;
+ char *prefix = NULL;
+ char *filename = NULL;
+ char *output_buffer = NULL;
+ int opt = 0;
+ int arg_type = 0;
+ int deb_extract_funct = extract_create_leading_dirs | extract_unconditional;
- while ((opt = getopt(argc, argv, "cexX")) != -1) {
+ const int arg_type_prefix = 1;
+ const int arg_type_field = 2;
+ const int arg_type_filename = 4;
+// const int arg_type_un_ar_gz = 8;
+
+ while ((opt = getopt(argc, argv, "ceftXxI")) != -1) {
switch (opt) {
case 'c':
- optflag |= dpkg_deb_contents;
+ deb_extract_funct |= extract_data_tar_gz;
+ deb_extract_funct |= extract_verbose_list;
break;
case 'e':
- optflag |= dpkg_deb_control;
+ arg_type = arg_type_prefix;
+ deb_extract_funct |= extract_control_tar_gz;
+ deb_extract_funct |= extract_all_to_fs;
break;
-/* case 'I':
- optflag |= dpkg_deb_info;
+ case 'f':
+ arg_type = arg_type_field;
+ deb_extract_funct |= extract_control_tar_gz;
+ deb_extract_funct |= extract_one_to_buffer;
+ filename = xstrdup("./control");
break;
-*/
- case 'x':
- optflag |= dpkg_deb_extract;
+ case 't': /* --fsys-tarfile, i just made up this short name */
+ /* Integrate the functionality needed with some code from ar.c */
+ error_msg_and_die("Option disabled");
+// arg_type = arg_type_un_ar_gz;
break;
case 'X':
- optflag |= dpkg_deb_verbose_extract;
+ arg_type = arg_type_prefix;
+ deb_extract_funct |= extract_data_tar_gz;
+ deb_extract_funct |= extract_all_to_fs;
+ deb_extract_funct |= extract_list;
+ case 'x':
+ arg_type = arg_type_prefix;
+ deb_extract_funct |= extract_data_tar_gz;
+ deb_extract_funct |= extract_all_to_fs;
+ break;
+ case 'I':
+ arg_type = arg_type_filename;
+ deb_extract_funct |= extract_control_tar_gz;
+ deb_extract_funct |= extract_one_to_buffer;
break;
default:
- usage(dpkg_deb_usage);
- return EXIT_FAILURE;
+ show_usage();
}
}
- if (((optind + 1 ) > argc) || (optflag == 0)) {
- usage(dpkg_deb_usage);
- return(EXIT_FAILURE);
- }
-
- if (optflag & dpkg_deb_contents) {
- list_flag = TRUE;
- verbose_flag = TRUE;
- strcpy(ar_filename, "data.tar.gz");
+ if (optind == argc) {
+ show_usage();
}
- else if (optflag & dpkg_deb_control) {
- extract_flag = TRUE;
- strcpy(ar_filename, "control.tar.gz");
- if ( (optind + 1) == argc ) {
- target_dir = (char *) xmalloc(7);
- strcpy(target_dir, "DEBIAN");
- }
- else {
- target_dir = (char *) xmalloc(strlen(argv[optind+1]));
- strcpy(target_dir, argv[optind+1]);
- }
- }
-/* else if (optflag & dpkg_deb_info) {
- extract_flag = TRUE;
- extract_to_stdout = TRUE;
- strcpy(ar_filename, "control.tar.gz");
- extract_list = argv+optind+1;
- printf("list one is [%s]\n",extract_list[0]);
- }
-*/
- else if (optflag & dpkg_deb_extract) {
- extract_flag = TRUE;
- strcpy(ar_filename, "data.tar.gz");
- if ( (optind + 2) > argc ) {
- error_msg_and_die("No directory specified\n");
+ /* Workout where to extract the files */
+ if (arg_type == arg_type_prefix) {
+ /* argument is a dir name */
+ if ((optind + 1) == argc ) {
+ prefix = xstrdup("./DEBIAN/");
+ } else {
+ prefix = (char *) xmalloc(strlen(argv[optind + 1]) + 2);
+ strcpy(prefix, argv[optind + 1]);
+ /* Make sure the directory has a trailing '/' */
+ if (last_char_is(prefix, '/') == NULL) {
+ strcat(prefix, "/");
+ }
}
- target_dir = (char *) xmalloc(strlen(argv[optind+1]));
- strcpy(target_dir, argv[optind+1]);
- }
- else if (optflag & dpkg_deb_verbose_extract) {
- extract_flag = TRUE;
- list_flag = TRUE;
- strcpy(ar_filename, "data.tar.gz");
- if ( (optind + 2) > argc ) {
- error_msg_and_die("No directory specified\n");
+ mkdir(prefix, 0777);
+ }
+
+ if (arg_type == arg_type_filename) {
+ if ((optind + 1) != argc) {
+ filename = xstrdup(argv[optind + 1]);
+ } else {
+ error_msg_and_die("-I currently requires a filename to be specified");
}
- target_dir = (char *) xmalloc(strlen(argv[optind+1]));
- strcpy(target_dir, argv[optind+1]);
}
-
- ar_headers = (ar_headers_t *) xmalloc(sizeof(ar_headers_t));
- srcFd = open(argv[optind], O_RDONLY);
-
- *ar_headers = get_headers(srcFd);
- if (ar_headers->next==NULL)
- error_msg_and_die("Couldnt find %s in %s\n",ar_filename, argv[optind]);
- while (ar_headers->next != NULL) {
- if (strcmp(ar_headers->name, ar_filename)==0)
- break;
- ar_headers = ar_headers->next;
+ output_buffer = deb_extract(argv[optind], stdout, deb_extract_funct, prefix, filename);
+
+ if ((arg_type == arg_type_filename) && (output_buffer != NULL)) {
+ puts(output_buffer);
}
+ else if (arg_type == arg_type_field) {
+ char *field = NULL;
+ char *name;
+ char *value;
+ int field_start = 0;
- lseek(srcFd, ar_headers->offset, SEEK_SET);
- srcFd = tar_unzip_init(srcFd);
- if ( target_dir != NULL) {
- if (is_directory(target_dir, TRUE, NULL)==FALSE) {
- mkdir(target_dir, 0755);
- }
- if (chdir(target_dir)==-1) {
- error_msg_and_die("Cannot change to dir %s\n",argv[optind+1]);
+ while (1) {
+ field_start += read_package_field(&output_buffer[field_start], &name, &value);
+ if (name == NULL) {
+ break;
+ }
+ if (strcmp(name, argv[optind + 1]) == 0) {
+ puts(value);
+ }
+ free(field);
}
}
- status = readTarFile(srcFd, extract_flag, list_flag, extract_to_stdout, verbose_flag, NULL, extract_list);
+
return(EXIT_SUCCESS);
}
projects / oweals / busybox.git / blobdiff