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Support for GNU style long filename and linknames

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This commit is contained in:
Glenn L McGrath 2002-09-15 16:54:49 +00:00
parent 186685d46f
commit b3c4e9add5
2 changed files with 40 additions and 10 deletions
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1
archival/config.in
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@ -20,6 +20,7 @@ if [ "$CONFIG_TAR" = "y" ] ; then
bool ' Enable -X and --exclude options (exclude files)' CONFIG_FEATURE_TAR_EXCLUDE
bool ' Enable -z option' CONFIG_FEATURE_TAR_GZIP
bool ' Enable support for old tar header format' CONFIG_FEATURE_TAR_OLD_FORMAT
bool ' Enable support for GNU long filenames' CONFIG_FEATURE_GNUTAR_LONG_FILENAME
fi
if [ "$CONFIG_CPIO" = "y" -o "$CONFIG_TAR" = "y" ] ; then
bool ' Enable tape drive support' CONFIG_FEATURE_UNARCHIVE_TAPE

49
archival/libunarchive/get_header_tar.c
View File

@ -97,8 +97,19 @@ file_header_t *get_header_tar(FILE * tar_stream)
}
tar_entry->mode = strtol(tar.formated.mode, NULL, 8);
#ifdef CONFIG_FEATURE_TAR_OLD_FORMAT
tar_entry->uid = strtol(tar.formated.uid, NULL, 8);
tar_entry->gid = strtol(tar.formated.gid, NULL, 8);
tar_entry->size = strtol(tar.formated.size, NULL, 8);
tar_entry->mtime = strtol(tar.formated.mtime, NULL, 8);
tar_entry->link_name =
strlen(tar.formated.linkname) ? xstrdup(tar.formated.linkname) : NULL;
tar_entry->device =
(dev_t) ((strtol(tar.formated.devmajor, NULL, 8) << 8) +
strtol(tar.formated.devminor, NULL, 8));
#if defined CONFIG_FEATURE_TAR_OLD_FORMAT || defined CONFIG_FEATURE_GNUTAR_LONG_FILENAME
switch (tar.formated.typeflag) {
# ifdef CONFIG_FEATURE_TAR_OLD_FORMAT
case 0:
tar_entry->mode |= S_IFREG;
break;
@ -120,17 +131,35 @@ file_header_t *get_header_tar(FILE * tar_stream)
case 6:
tar_entry->mode |= S_IFIFO;
break;
# endif
# ifdef CONFIG_FEATURE_GNUTAR_LONG_FILENAME
case 'L': {
char *longname;
longname = xmalloc(tar_entry->size + 1);
fread(longname, 1, tar_entry->size, tar_stream);
archive_offset += tar_entry->size;
longname[tar_entry->size] = '\0';
tar_entry = get_header_tar(tar_stream);
tar_entry->name = longname;
break;
}
case 'K': {
char *longname;
longname = xmalloc(tar_entry->size + 1);
fread(longname, 1, tar_entry->size, tar_stream);
archive_offset += tar_entry->size;
longname[tar_entry->size] = '\0';
tar_entry = get_header_tar(tar_stream);
tar_entry->link_name = longname;
break;
}
# endif
}
#endif
tar_entry->uid = strtol(tar.formated.uid, NULL, 8);
tar_entry->gid = strtol(tar.formated.gid, NULL, 8);
tar_entry->size = strtol(tar.formated.size, NULL, 8);
tar_entry->mtime = strtol(tar.formated.mtime, NULL, 8);
tar_entry->link_name =
strlen(tar.formated.linkname) ? xstrdup(tar.formated.linkname) : NULL;
tar_entry->device =
(dev_t) ((strtol(tar.formated.devmajor, NULL, 8) << 8) +
strtol(tar.formated.devminor, NULL, 8));
return (tar_entry);
}