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Bug 640: a filename of length exactly 100 could bleed into the next field on

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display or extract.  (Only shows up when no gnu longname extension, either
because it's disabled or because tarball hasn't got it.)
This commit is contained in:
Rob Landley 2006-02-20 19:28:53 +00:00
parent dcbad607fc
commit 06249fee39
1 changed files with 11 additions and 19 deletions
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30
archival/libunarchive/get_header_tar.c
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@ -1,17 +1,4 @@
/*
* 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.
/* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*
* FIXME:
* In privileged mode if uname and gname map to a uid and gid then use the
@ -70,7 +57,8 @@ extern char get_header_tar(archive_handle_t *archive_handle)
if (bb_full_read(archive_handle->src_fd, tar.raw, 512) != 512) {
/* Assume end of file */
return(EXIT_FAILURE);
bb_error_msg_and_die("Short header");
//return(EXIT_FAILURE);
}
archive_handle->offset += 512;
@ -120,10 +108,14 @@ extern char get_header_tar(archive_handle_t *archive_handle)
linkname = NULL;
} else
#endif
if (tar.formated.prefix[0] == 0) {
file_header->name = strdup(tar.formated.name);
} else {
file_header->name = concat_path_file(tar.formated.prefix, tar.formated.name);
{
file_header->name = strndup(tar.formated.name,100);
if (tar.formated.prefix[0]) {
char *temp = file_header->name;
file_header->name = concat_path_file(tar.formated.prefix, temp);
free(temp);
}
}
file_header->uid = strtol(tar.formated.uid, NULL, 8);