127 lines
3.7 KiB
Diff
127 lines
3.7 KiB
Diff
From 23510b930ea31f7de8005e2f0ff6cab7062b4e26 Mon Sep 17 00:00:00 2001
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From: Kamil Dudka <kdudka@redhat.com>
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Date: Thu, 19 Aug 2010 15:23:06 +0200
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Subject: [PATCH 2/2] use futimens() if available, instead of utime()
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---
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config.h.in | 3 +++
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configure | 2 +-
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configure.ac | 2 +-
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src/files.c | 46 +++++++++++++++++++++++++++++++++++-----------
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4 files changed, 40 insertions(+), 13 deletions(-)
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diff --git a/config.h.in b/config.h.in
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index 52e13f1..cb17b29 100644
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--- a/config.h.in
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+++ b/config.h.in
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@@ -72,6 +72,9 @@
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/* Define to 1 if you don't have `vprintf' but do have `_doprnt.' */
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#undef HAVE_DOPRNT
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+/* Define to 1 if you have the `futimens' function. */
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+#undef HAVE_FUTIMENS
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+
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/* Define to 1 if you have the `getdelim' function. */
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#undef HAVE_GETDELIM
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diff --git a/configure b/configure
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index 02733c7..1805e53 100755
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--- a/configure
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+++ b/configure
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@@ -7775,7 +7775,7 @@ fi
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-for ac_func in getdelim getline isblank strcasecmp strcasestr strncasecmp strnlen snprintf vsnprintf
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+for ac_func in futimens getdelim getline isblank strcasecmp strcasestr strncasecmp strnlen snprintf vsnprintf
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do :
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as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
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ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
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diff --git a/configure.ac b/configure.ac
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index 66f8ee3..f4975d3 100644
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--- a/configure.ac
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+++ b/configure.ac
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@@ -442,7 +442,7 @@ int main(void)
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dnl Checks for functions.
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-AC_CHECK_FUNCS(getdelim getline isblank strcasecmp strcasestr strncasecmp strnlen snprintf vsnprintf)
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+AC_CHECK_FUNCS(futimens getdelim getline isblank strcasecmp strcasestr strncasecmp strnlen snprintf vsnprintf)
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if test "x$enable_utf8" != xno; then
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AC_CHECK_FUNCS(iswalnum iswblank iswpunct iswspace nl_langinfo mblen mbstowcs mbtowc wctomb wcwidth)
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diff --git a/src/files.c b/src/files.c
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index 99cc1b8..9a1bdcc 100644
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--- a/src/files.c
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+++ b/src/files.c
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@@ -1691,6 +1691,29 @@ int copy_file(FILE *inn, FILE *out)
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return retval;
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}
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+#ifdef HAVE_FUTIMENS
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+/* set atime/mtime by file descriptor */
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+int utime_wrap(int fd, const char *filename, struct utimbuf *ut)
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+{
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+ struct timespec times[2];
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+ (void) filename;
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+
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+ times[0].tv_sec = ut->actime;
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+ times[1].tv_sec = ut->modtime;
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+ times[0].tv_nsec = 0L;
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+ times[1].tv_nsec = 0L;
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+
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+ return futimens(fd, times);
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+}
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+#else
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+/* set atime/mtime by file name */
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+int utime_wrap(int fd, const char *filename, struct utimbuf *ut)
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+{
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+ (void) fd;
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+ return utime(filename, ut);
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+}
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+#endif
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+
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/* Write a file out to disk. If f_open isn't NULL, we assume that it is
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* a stream associated with the file, and we don't try to open it
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* ourselves. If tmp is TRUE, we set the umask to disallow anyone else
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@@ -1912,17 +1935,9 @@ bool write_file(const char *name, FILE *f_open, bool tmp, append_type
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fprintf(stderr, "Backing up %s to %s\n", realname, backupname);
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#endif
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- /* Copy the file. */
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- copy_status = copy_file(f, backup_file);
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-
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- if (copy_status != 0) {
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- statusline(ALERT, _("Error reading %s: %s"), realname,
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- strerror(errno));
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- goto cleanup_and_exit;
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- }
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-
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- /* And set its metadata. */
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- if (utime(backupname, &filetime) == -1 && !ISSET(INSECURE_BACKUP)) {
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+ /* Set backup's file metadata. */
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+ if (utime_wrap(backup_fd, backupname, &filetime) == -1
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+ && !ISSET(INSECURE_BACKUP)) {
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if (prompt_failed_backupwrite(backupname))
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goto skip_backup;
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statusline(HUSH, _("Error writing backup file %s: %s"),
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@@ -1934,6 +1949,15 @@ bool write_file(const char *name, FILE *f_open, bool tmp, append_type
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goto cleanup_and_exit;
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}
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+ /* Copy the file. */
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+ copy_status = copy_file(f, backup_file);
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+
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+ if (copy_status != 0) {
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+ statusline(ALERT, _("Error reading %s: %s"), realname,
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+ strerror(errno));
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+ goto cleanup_and_exit;
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+ }
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+
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free(backupname);
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}
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--
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1.7.4
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