diff --git a/gnulib.modules b/gnulib.modules
index ec3dc900..fe5ab737 100644
--- a/gnulib.modules
+++ b/gnulib.modules
@@ -19,6 +19,7 @@
# along with this program. If not, see .
alloca
+areadlinkat-with-size
argmatch
argp
argp-version-etc
diff --git a/src/create.c b/src/create.c
index 1b08e0b2..7cdc9782 100644
--- a/src/create.c
+++ b/src/create.c
@@ -22,6 +22,7 @@
#include
+#include
#include
#include "common.h"
@@ -1114,7 +1115,7 @@ dump_dir0 (struct tar_stat_info *st, char const *directory)
return;
info_attach_exclist (st);
-
+
if (incremental_option && archive_format != POSIX_FORMAT)
blk->header.typeflag = GNUTYPE_DUMPDIR;
else /* if (standard_option) */
@@ -1198,7 +1199,7 @@ dump_dir0 (struct tar_stat_info *st, char const *directory)
char const *entry;
size_t entry_len;
size_t name_len;
-
+
name_buf = xstrdup (st->orig_file_name);
name_size = name_len = strlen (name_buf);
@@ -1837,22 +1838,17 @@ dump_file0 (struct tar_stat_info *st, char const *name, char const *p)
#ifdef HAVE_READLINK
else if (S_ISLNK (st->stat.st_mode))
{
- char *buffer;
- int size;
- size_t linklen = st->stat.st_size;
- if (linklen != st->stat.st_size || linklen + 1 == 0)
- xalloc_die ();
- buffer = (char *) alloca (linklen + 1);
- size = readlinkat (parentfd, name, buffer, linklen + 1);
- if (size < 0)
+ st->link_name = areadlinkat_with_size (parentfd, name, st->stat.st_size);
+ if (!st->link_name)
{
+ if (errno == ENOMEM)
+ xalloc_die ();
file_removed_diag (p, top_level, readlink_diag);
return;
}
- buffer[size] = '\0';
- assign_string (&st->link_name, buffer);
transform_name (&st->link_name, XFORM_SYMLINK);
- if (NAME_FIELD_SIZE - (archive_format == OLDGNU_FORMAT) < size)
+ if (NAME_FIELD_SIZE - (archive_format == OLDGNU_FORMAT)
+ < strlen (st->link_name))
write_long_link (st);
xattrs_selinux_get (parentfd, name, st, 0);