X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/1e1ddfac79fbcd052f199500a6493c7f79cb8462..a85c067ba6c6940512cf57ec213277a370d87e70:/src/src/lookups/dsearch.c

diff --git a/src/src/lookups/dsearch.c b/src/src/lookups/dsearch.c
index 455273fb1..6cae0dafb 100644
--- a/src/src/lookups/dsearch.c
+++ b/src/src/lookups/dsearch.c
@@ -2,9 +2,10 @@
 *     Exim - an Internet mail transport agent    *
 *************************************************/
 
+/* Copyright (c) The Exim Maintainers 2020 - 2022 */
 /* Copyright (c) University of Cambridge 1995 - 2015 */
-/* Copyright (c) The Exim Maintainers 2020 */
 /* See the file NOTICE for conditions of use and distribution. */
+/* SPDX-License-Identifier: GPL-2.0-only */
 
 /* The idea for this code came from Matthew Byng-Maddick, but his original has
 been heavily reworked a lot for Exim 4 (and it now uses stat() (more precisely:
@@ -31,9 +32,7 @@ dsearch_open(const uschar * dirname, uschar ** errmsg)
 DIR * dp = exim_opendir(dirname);
 if (!dp)
   {
-  int save_errno = errno;
-  *errmsg = string_open_failed(errno, "%s for directory search", dirname);
-  errno = save_errno;
+  *errmsg = string_open_failed("%s for directory search", dirname);
   return NULL;
   }
 closedir(dp);
@@ -86,10 +85,6 @@ int save_errno;
 uschar * filename;
 unsigned flags = 0;
 
-handle = handle;  /* Keep picky compilers happy */
-length = length;
-do_cache = do_cache;
-
 if (Ustrchr(keystring, '/') != 0)
   {
   *errmsg = string_sprintf("key for dsearch lookup contains a slash: %s",
@@ -125,20 +120,19 @@ if (  Ulstat(filename, &statbuf) >= 0
        	 && S_ISDIR(statbuf.st_mode)
 	 && (  flags & FILTER_DIR
 	    || keystring[0] != '.'
-	    || keystring[1] != '.'
-	    || keystring[1] && keystring[2]
+	    || keystring[1] && keystring[1] != '.'
    )  )  )  )
   {
   /* Since the filename exists in the filesystem, we can return a
   non-tainted result. */
-  *result = string_copy_taint(flags & RET_FULL ? filename : keystring, FALSE);
+  *result = string_copy_taint(flags & RET_FULL ? filename : keystring, GET_UNTAINTED);
   return OK;
   }
 
-if (errno == ENOENT) return FAIL;
+if (errno == ENOENT || errno == 0) return FAIL;
 
 save_errno = errno;
-*errmsg = string_sprintf("%s: lstat failed", filename);
+*errmsg = string_sprintf("%s: lstat: %s", filename, strerror(errno));
 errno = save_errno;
 return DEFER;
 }
@@ -165,12 +159,13 @@ handle = handle;   /* Avoid compiler warning */
 
 #include "../version.h"
 
-void
-dsearch_version_report(FILE *f)
+gstring *
+dsearch_version_report(gstring * g)
 {
 #ifdef DYNLOOKUP
-fprintf(f, "Library version: dsearch: Exim version %s\n", EXIM_VERSION_STR);
+g = string_fmt_append(g, "Library version: dsearch: Exim version %s\n", EXIM_VERSION_STR);
 #endif
+return g;
 }