diff options
Diffstat (limited to 'libbb/get_ar_headers.c')
| -rw-r--r-- | libbb/get_ar_headers.c | 119 |
1 files changed, 0 insertions, 119 deletions
diff --git a/libbb/get_ar_headers.c b/libbb/get_ar_headers.c deleted file mode 100644 index 414498b4f..000000000 --- a/libbb/get_ar_headers.c +++ /dev/null @@ -1,119 +0,0 @@ -/* vi: set sw=4 ts=4: */ -/* - * Utility routines. - * - * Copyright (C) tons of folks. Tracking down who wrote what - * isn't something I'm going to worry about... If you wrote something - * here, please feel free to acknowledge your work. - * - * 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 - * 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 - * - * Based in part on code from sash, Copyright (c) 1999 by David I. Bell - * Permission has been granted to redistribute this code under the GPL. - * - */ - -#include <stdlib.h> -#include <string.h> -#include <unistd.h> -#include "libbb.h" - -file_headers_t *get_ar_headers(FILE *in_file) -{ - typedef struct raw_ar_header_s { /* Byte Offset */ - char name[16]; /* 0-15 */ - char date[12]; /* 16-27 */ - char uid[6]; - char gid[6]; /* 28-39 */ - char mode[8]; /* 40-47 */ - char size[10]; /* 48-57 */ - char fmag[2]; /* 58-59 */ - } raw_ar_header_t; - - raw_ar_header_t raw_ar_header; - - file_headers_t *ar_list, *ar_entry; - char ar_magic[8]; - char *long_name=NULL; - - /* check ar magic */ - if (fread(ar_magic, 1, 8, in_file) != 8) { - error_msg("cannot read magic"); - return(NULL); - } - - if (strncmp(ar_magic,"!<arch>",7) != 0) { - error_msg("invalid magic"); - return(NULL); - } - - ar_list = (file_headers_t *) xcalloc(1, sizeof(file_headers_t)); - - while (fread((char *) &raw_ar_header, 1, 60, in_file) == 60) { - ar_entry = (file_headers_t *) xcalloc(1, sizeof(file_headers_t)); - /* check the end of header markers are valid */ - if ((raw_ar_header.fmag[0] != '`') || (raw_ar_header.fmag[1] != '\n')) { - char newline; - if (raw_ar_header.fmag[1] != '`') { - break; - } - /* some version of ar, have an extra '\n' after each entry */ - fread(&newline, 1, 1, in_file); - if (newline!='\n') { - break; - } - /* fix up the header, we started reading 1 byte too early due to a '\n' */ - memmove((char *) &raw_ar_header, (char *)&raw_ar_header+1, 59); - /* dont worry about adding the last '\n', we dont need it now */ - } - - ar_entry->size = (size_t) atoi(raw_ar_header.size); - /* long filenames have '/' as the first character */ - if (raw_ar_header.name[0] == '/') { - if (raw_ar_header.name[1] == '/') { - /* multiple long filenames are stored as data in one entry */ - long_name = (char *) xrealloc(long_name, ar_entry->size); - fread(long_name, 1, ar_entry->size, in_file); - continue; - } - else { - /* The number after the '/' indicates the offset in the ar data section - (saved in variable long_name) that conatains the real filename */ - const int long_name_offset = (int) atoi((char *) &raw_ar_header.name[1]); - ar_entry->name = xmalloc(strlen(&long_name[long_name_offset])); - strcpy(ar_entry->name, &long_name[long_name_offset]); - } - } - else { - /* short filenames */ - ar_entry->name = xmalloc(16); - ar_entry->name = strncpy(ar_entry->name, raw_ar_header.name, 16); - } - ar_entry->name[strcspn(ar_entry->name, " /")]='\0'; - - /* convert the rest of the now valid char header to its typed struct */ - parse_mode(raw_ar_header.mode, &ar_entry->mode); - ar_entry->mtime = atoi(raw_ar_header.date); - ar_entry->uid = atoi(raw_ar_header.uid); - ar_entry->gid = atoi(raw_ar_header.gid); - ar_entry->offset = ftell(in_file); - ar_entry->next = NULL; - - fseek(in_file, (off_t) ar_entry->size, SEEK_CUR); - - ar_list = append_archive_list(ar_list, ar_entry); - } - return(ar_list); -} |