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Ticket #4077: extfs: handle file names started with dash or space.

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* (extfs_open_archive): skip leading ./ in file names. extfs plug-ins
  are added leading ./ to handle files with name started with space.
  * (extfs_cmd): skip leading ./ added in name_quote(). ./ is added to
  handle files with name started with dash.

Signed-off-by: Andrew Borodin <aborodin@vmail.ru>
This commit is contained in:
Andrew Borodin 2020-10-22 10:12:38 +03:00
parent a2bccac622
commit d3c8e5bad7
1 changed files with 25 additions and 1 deletions
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26
src/vfs/extfs/extfs.c
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@ -373,6 +373,26 @@ extfs_free_archive (struct vfs_class *me, struct vfs_s_super *psup)
/* --------------------------------------------------------------------------------------------- */
static inline char *
extfs_skip_leading_dotslash (char *s)
{
/* Skip leading "./" (if present).
* Some programs don't understand it:
*
* $ zip file.zip ./-file2.txt file1.txt
* adding: -file2.txt (stored 0%)
* adding: file1.txt (stored 0%)
* $ /usr/lib/mc/extfs.d/uzip copyout file.zip ./-file2.txt ./tmp-file2.txt
* caution: filename not matched: ./-file2.txt
*/
if (s[0] == '.' && s[1] == PATH_SEP)
s += 2;
return s;
}
/* --------------------------------------------------------------------------------------------- */
static FILE *
extfs_open_archive (int fstype, const char *name, struct extfs_super_t **pparc)
{
@ -486,6 +506,7 @@ extfs_read_archive (FILE * extfsd, struct extfs_super_t *current_archive)
if (*cfn != '\0')
{
cfn = extfs_skip_leading_dotslash (cfn);
if (IS_PATH_SEP (*cfn))
cfn++;
p = strchr (cfn, '\0');
@ -812,13 +833,16 @@ extfs_cmd (const char *str_extfs_cmd, const struct extfs_super_t *archive,
quoted_file = name_quote (file, FALSE);
g_free (file);
/* Skip leading "./" (if present) added in name_quote() */
file = extfs_skip_leading_dotslash (quoted_file);
archive_name = extfs_get_archive_name (archive);
quoted_archive_name = name_quote (archive_name, FALSE);
g_free (archive_name);
quoted_localname = name_quote (localname, FALSE);
info = &g_array_index (extfs_plugins, extfs_plugin_info_t, archive->fstype);
cmd = g_strconcat (info->path, info->prefix, str_extfs_cmd,
quoted_archive_name, " ", quoted_file, " ", quoted_localname, (char *) NULL);
quoted_archive_name, " ", file, " ", quoted_localname, (char *) NULL);
g_free (quoted_file);
g_free (quoted_localname);
g_free (quoted_archive_name);