diff options
Diffstat (limited to 'libbb/get_tar_headers.c')
| -rw-r--r-- | libbb/get_tar_headers.c | 111 |
1 files changed, 0 insertions, 111 deletions
diff --git a/libbb/get_tar_headers.c b/libbb/get_tar_headers.c deleted file mode 100644 index 5ddf4d9c3..000000000 --- a/libbb/get_tar_headers.c +++ /dev/null @@ -1,111 +0,0 @@ -/* - * 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 <stdlib.h> -#include <string.h> -#include <unistd.h> -#include "libbb.h" - -file_headers_t *get_tar_headers(FILE *tar_stream) -{ - typedef struct raw_tar_header { - char name[100]; /* 0-99 */ - char mode[8]; /* 100-107 */ - char uid[8]; /* 108-115 */ - char gid[8]; /* 116-123 */ - char size[12]; /* 124-135 */ - char mtime[12]; /* 136-147 */ - char chksum[8]; /* 148-155 */ - char typeflag; /* 156-156 */ - char linkname[100]; /* 157-256 */ - char magic[6]; /* 257-262 */ - char version[2]; /* 263-264 */ - char uname[32]; /* 265-296 */ - char gname[32]; /* 297-328 */ - char devmajor[8]; /* 329-336 */ - char devminor[8]; /* 337-344 */ - char prefix[155]; /* 345-499 */ - char padding[12]; /* 500-512 */ - } raw_tar_header_t; - - raw_tar_header_t raw_tar_header; - unsigned char *temp = (unsigned char *) &raw_tar_header; - file_headers_t *tar_headers_list = (file_headers_t *) calloc(1, sizeof(file_headers_t)); - file_headers_t *tar_entry; - long i; - long next_header_offset = 0; - long current_offset = 0; - - while (fread((char *) &raw_tar_header, 1, 512, tar_stream) == 512) { - long sum = 0; - current_offset += 512; - - /* Check header has valid magic, unfortunately some tar files - * have empty (0'ed) tar entries at the end, which will - * cause this to fail, so fail silently for now - */ - if (strncmp(raw_tar_header.magic, "ustar", 5) != 0) { -// error_msg("invalid magic, [%s]\n", raw_tar_header.magic); - break; - } - - /* Do checksum on headers */ - for (i = 0; i < 148 ; i++) { - sum += temp[i]; - } - sum += ' ' * 8; - for (i = 156; i < 512 ; i++) { - sum += temp[i]; - } - if (sum != strtol(raw_tar_header.chksum, NULL, 8)) { - error_msg("Invalid tar header checksum"); - break; - } - - /* convert to type'ed variables */ - tar_entry = xcalloc(1, sizeof(file_headers_t)); - tar_entry->name = xstrdup(raw_tar_header.name); - - tar_entry->offset = (off_t) current_offset; - parse_mode(raw_tar_header.mode, &tar_entry->mode); - tar_entry->uid = strtol(raw_tar_header.uid, NULL, 8); - tar_entry->gid = strtol(raw_tar_header.gid, NULL, 8); - tar_entry->size = strtol(raw_tar_header.size, NULL, 8); - tar_entry->mtime = strtol(raw_tar_header.mtime, NULL, 8); - tar_entry->link_name = xstrdup(raw_tar_header.linkname); -// tar_entry->devmajor = strtol(rawHeader->devmajor, NULL, 8); -// tar_entry->devminor = strtol(rawHeader->devminor, NULL, 8); - - tar_headers_list = append_archive_list(tar_headers_list, tar_entry); - - /* start of next header is at */ - next_header_offset = current_offset + tar_entry->size; - - if (tar_entry->size % 512 != 0) { - next_header_offset += (512 - tar_entry->size % 512); - } - /* - * Seek to start of next block, cant use fseek as unzip() does support it - */ - while (current_offset < next_header_offset) { - if (fgetc(tar_stream) == EOF) { - break; - } - current_offset++; - } - } - return(tar_headers_list); -} - |