X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/80fea873648ca2ab2e592999a336c59cf054ab55..a85c067ba6c6940512cf57ec213277a370d87e70:/src/src/exim_lock.c

diff --git a/src/src/exim_lock.c b/src/src/exim_lock.c
index 158ec6836..1a54a92ad 100644
--- a/src/src/exim_lock.c
+++ b/src/src/exim_lock.c
@@ -10,7 +10,8 @@ Default is -fcntl -lockfile.
 
 Argument: the name of the lock file
 
-Copyright (c) The Exim Maintainers 2016
+Copyright (c) The Exim Maintainers 2016 - 2021
+SPDX-License-Identifier: GPL-2.0-only
 */
 
 #include "os.h"
@@ -38,7 +39,7 @@ in sys/file.h. */
 #endif
 
 
-typedef int BOOL;
+typedef unsigned BOOL;
 #define FALSE 0
 #define TRUE  1
 
@@ -87,7 +88,6 @@ the other stuff in os.c, so force the other macros to omit it. */
 static void
 sigalrm_handler(int sig)
 {
-sig = sig;      /* Keep picky compilers happy */
 sigalrm_seen = TRUE;
 }
 
@@ -357,8 +357,7 @@ for (j = 0; j < lock_retries; j++)
 
   /* Open the file for writing. */
 
-  fd = open(filename, O_RDWR + O_APPEND);
-  if (fd < 0)
+  if ((fd = open(filename, O_RDWR + O_APPEND)) < 0)
     {
     printf("exim_lock: failed to open %s for writing: %s\n", filename,
       strerror(errno));
@@ -377,7 +376,6 @@ for (j = 0; j < lock_retries; j++)
   a timeout changes it to blocking. */
 
   if (!use_mbx && (use_fcntl || use_flock))
-    {
     if (apply_lock(fd, F_WRLCK, use_fcntl, lock_fcntl_timeout, use_flock,
         lock_flock_timeout) >= 0)
       {
@@ -388,8 +386,8 @@ for (j = 0; j < lock_retries; j++)
         }
       break;
       }
-    else goto RETRY;   /* Message already output */
-    }
+    else
+      goto RETRY;   /* Message already output */
 
   /* Lock using MBX rules. This is complicated and is documented with the
   source of the c-client library that goes with Pine and IMAP. What has to
@@ -586,12 +584,37 @@ else
 if (restore_times)
   {
   struct stat strestore;
+#ifdef EXIM_HAVE_FUTIMENS
+  int fd = open(filename, O_RDWR); /* use fd for both get & restore */
+  struct timespec tt[2];
+
+  if (fd < 0)
+    {
+    printf("open '%s': %s\n", filename, strerror(errno));
+    yield = 1;
+    goto CLEAN_UP;
+    }
+  if (fstat(fd, &strestore) != 0)
+    {
+    printf("fstat '%s': %s\n", filename, strerror(errno));
+    yield = 1;
+    close(fd);
+    goto CLEAN_UP;
+    }
+  i = system(command);
+  tt[0] = strestore.st_atim;
+  tt[1] = strestore.st_mtim;
+  (void) futimens(fd, tt);
+  (void) close(fd);
+#else
   struct utimbuf ut;
+
   stat(filename, &strestore);
   i = system(command);
   ut.actime = strestore.st_atime;
   ut.modtime = strestore.st_mtime;
   utime(filename, &ut);
+#endif
   }
 else i = system(command);