really add dpkg-deb.c this time

diff --git a/archival/dpkg_deb.c b/archival/dpkg_deb.c
new file mode 100644 (file)
index 0000000..b20cc26
--- /dev/null
+++ b/archival/dpkg_deb.c
@@ -0,0 +1,159 @@
+/*
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Library General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <fcntl.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;
+       
+       while ((opt = getopt(argc, argv, "cexX")) != -1) {
+               switch (opt) {
+                       case 'c':
+                               optflag |= dpkg_deb_contents;
+                               break;
+                       case 'e':
+                               optflag |= dpkg_deb_control;
+                               break;
+/*                     case 'I':
+                               optflag |= dpkg_deb_info;
+                               break;
+*/
+                       case 'x':
+                               optflag |= dpkg_deb_extract;
+                               break;
+                       case 'X':
+                               optflag |= dpkg_deb_verbose_extract;
+                               break;
+                       default:
+                               usage(dpkg_deb_usage);
+                               return EXIT_FAILURE;
+               }
+       }
+
+       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");
+       }
+       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");
+               }
+               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");
+               }
+               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;
+       }
+
+       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]);
+               }
+       }
+       status = readTarFile(srcFd, extract_flag, list_flag, extract_to_stdout, verbose_flag, NULL, extract_list);
+       return(EXIT_SUCCESS);
+}

diff --git a/dpkg_deb.c b/dpkg_deb.c
new file mode 100644 (file)
index 0000000..b20cc26
--- /dev/null
+++ b/dpkg_deb.c
@@ -0,0 +1,159 @@
+/*
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Library General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <fcntl.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;
+       
+       while ((opt = getopt(argc, argv, "cexX")) != -1) {
+               switch (opt) {
+                       case 'c':
+                               optflag |= dpkg_deb_contents;
+                               break;
+                       case 'e':
+                               optflag |= dpkg_deb_control;
+                               break;
+/*                     case 'I':
+                               optflag |= dpkg_deb_info;
+                               break;
+*/
+                       case 'x':
+                               optflag |= dpkg_deb_extract;
+                               break;
+                       case 'X':
+                               optflag |= dpkg_deb_verbose_extract;
+                               break;
+                       default:
+                               usage(dpkg_deb_usage);
+                               return EXIT_FAILURE;
+               }
+       }
+
+       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");
+       }
+       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");
+               }
+               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");
+               }
+               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;
+       }
+
+       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]);
+               }
+       }
+       status = readTarFile(srcFd, extract_flag, list_flag, extract_to_stdout, verbose_flag, NULL, extract_list);
+       return(EXIT_SUCCESS);
+}