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Don't read from name[-1].

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* src/incremen.c (make_directory): Handle namelen == 0, since
find_directory_meta calls make_directory ("").
This commit is contained in:
Paul Eggert
2007-11-13 07:01:26 +00:00
parent 60d351cc5a
commit 48d83be336
2 changed files with 18 additions and 12 deletions
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12
ChangeLog
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@@ -1,3 +1,9 @@
2007-11-12 Jim Meyering <meyering@redhat.com>
Don't read from name[-1].
* src/incremen.c (make_directory): Handle namelen == 0, since
find_directory_meta calls make_directory ("").
2007-11-07 Sergey Poznyakoff <gray@gnu.org.ua>
* bootstrap (checkout): Use URL of the gnulib CVS mirror.
@@ -11,7 +17,7 @@
TAR_BLOCKING_FACTOR environment variable.
* doc/tar.texi: Update
* NEWS: Update
2007-10-30 Sergey Poznyakoff <gray@gnu.org.ua>
* doc/Makefile.am: Use texi2html and the CVS version of gendocs.sh
@@ -41,9 +47,9 @@
* src/system.c (sys_exec_checkpoint_script): New function.
(sys_exec_info_script): Restore SIGPIPE handler.
* src/tar.c: (parse_opt): New options --hard-dereference,
--checkpoint-action.
--checkpoint-action.
(decode_options): Call checkpoint_finish_compile.
* src/system.c (sys_exec_info_script): Initialize buf. Problem
reported by Bengt-Arne Fjellner.

18
src/incremen.c
View File

@@ -124,8 +124,8 @@ make_directory (const char *name)
directory->orig = NULL;
directory->flags = false;
strcpy (directory->name, name);
if (ISSLASH (directory->name[namelen-1]))
directory->name[namelen-1] = 0;
if (namelen && ISSLASH (directory->name[namelen - 1]))
directory->name[namelen - 1] = 0;
directory->tagfile = NULL;
return directory;
}
@@ -336,7 +336,7 @@ procdir (char *name_buffer, struct stat *stat_data,
{
const char *tag_file_name;
switch (check_exclusion_tags (name_buffer, &tag_file_name))
{
case exclusion_tag_all:
@@ -355,13 +355,13 @@ procdir (char *name_buffer, struct stat *stat_data,
_("contents not dumped"));
directory->children = NO_CHILDREN;
break;
case exclusion_tag_under:
exclusion_tag_warning (name_buffer, tag_file_name,
_("contents not dumped"));
directory->tagfile = tag_file_name;
break;
case exclusion_tag_none:
break;
}
@@ -507,7 +507,7 @@ scan_directory (char *dir, dev_t device)
size_t name_length; /* used length in name_buffer */
struct stat stat_data;
struct directory *directory;
if (! dirp)
savedir_error (dir);
@@ -531,7 +531,7 @@ scan_directory (char *dir, dev_t device)
directory = procdir (name_buffer, &stat_data, device, NO_CHILDREN, false,
NULL);
if (dirp && directory->children != NO_CHILDREN)
{
char *entry; /* directory entry being scanned */
@@ -1416,12 +1416,12 @@ try_purge_directory (char const *directory_name)
This is an extra safety precaution. Besides, it might be
necessary to extract from archives created with tar versions
prior to 1.19. */
if (*src)
src = safer_name_suffix (src, false, absolute_names_option);
if (*dst)
dst = safer_name_suffix (dst, false, absolute_names_option);
if (*src == 0)
src = temp_stub;
else if (*dst == 0)