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kbx: Fix resource leak.

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* kbx/keybox-update.c (blob_filecopy): Fix resource leak.  On error
return, 'fp' and 'newfp' was never closed.

--

Signed-off-by: Joshua Rogers <git@internot.info>

[Log entry reformatted, and added more fixes - gniibe]

(cherry picked from commit 7db6c82cec)
This commit is contained in:
Joshua Rogers 2015-01-30 11:42:52 +09:00 committed by Werner Koch
parent 2b2adb8594
commit a55c212538
1 changed files with 32 additions and 5 deletions
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37
kbx/keybox-update.c
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@ -237,11 +237,17 @@ blob_filecopy (int mode, const char *fname, KEYBOXBLOB blob,
rc = _keybox_write_header_blob (newfp);
if (rc)
return rc;
{
fclose (newfp);
return rc;
}
rc = _keybox_write_blob (blob, newfp);
if (rc)
return rc;
{
fclose (newfp);
return rc;
}
if ( fclose (newfp) )
return gpg_error_from_syserror ();
@ -264,7 +270,8 @@ blob_filecopy (int mode, const char *fname, KEYBOXBLOB blob,
rc = create_tmp_file (fname, &bakfname, &tmpfname, &newfp);
if (rc)
{
fclose(fp);
fclose (fp);
fclose (newfp);
goto leave;
}
@ -277,12 +284,16 @@ blob_filecopy (int mode, const char *fname, KEYBOXBLOB blob,
if (fwrite (buffer, nread, 1, newfp) != 1)
{
rc = gpg_error_from_syserror ();
fclose (fp);
fclose (newfp);
goto leave;
}
}
if (ferror (fp))
{
rc = gpg_error_from_syserror ();
fclose (fp);
fclose (newfp);
goto leave;
}
}
@ -306,19 +317,27 @@ blob_filecopy (int mode, const char *fname, KEYBOXBLOB blob,
if (fwrite (buffer, nread, 1, newfp) != 1)
{
rc = gpg_error_from_syserror ();
fclose (fp);
fclose (newfp);
goto leave;
}
}
if (ferror (fp))
{
rc = gpg_error_from_syserror ();
fclose (fp);
fclose (newfp);
goto leave;
}
/* Skip this blob. */
rc = _keybox_read_blob (NULL, fp);
if (rc)
return rc;
{
fclose (fp);
fclose (newfp);
return rc;
}
}
/* Do an insert or update. */
@ -326,7 +345,11 @@ blob_filecopy (int mode, const char *fname, KEYBOXBLOB blob,
{
rc = _keybox_write_blob (blob, newfp);
if (rc)
{
fclose (fp);
fclose (newfp);
return rc;
}
}
/* Copy the rest of the packet for an delete or update. */
@ -337,12 +360,16 @@ blob_filecopy (int mode, const char *fname, KEYBOXBLOB blob,
if (fwrite (buffer, nread, 1, newfp) != 1)
{
rc = gpg_error_from_syserror ();
fclose (fp);
fclose (newfp);
goto leave;
}
}
if (ferror (fp))
{
rc = gpg_error_from_syserror ();
fclose (fp);
fclose (newfp);
goto leave;
}
}
@ -614,7 +641,7 @@ keybox_compress (KEYBOX_HANDLE hd)
rc = create_tmp_file (fname, &bakfname, &tmpfname, &newfp);
if (rc)
{
fclose(fp);
fclose (fp);
return rc;;
}