X-Git-Url: https://git.brokenzipper.com/gitweb?a=blobdiff_plain;f=src%2Fsystem.c;h=99cb0f33146414d62ef8dd4f20e07319e44c7ae6;hb=5249a993776ba32c851cf6eb3734958512d55d11;hp=bf8e0500ef55c090c7f514625cfe1fd467ab276c;hpb=35bb3557343bd4c19399ff8b142a999c3dc18cb6;p=chaz%2Ftar

diff --git a/src/system.c b/src/system.c
index bf8e050..99cb0f3 100644
--- a/src/system.c
+++ b/src/system.c
@@ -14,7 +14,7 @@
 
    You should have received a copy of the GNU General Public License along
    with this program; if not, write to the Free Software Foundation, Inc.,
-   59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
 
 #include <system.h>
 
@@ -22,30 +22,6 @@
 #include <rmt.h>
 #include <signal.h>
 
-void
-sys_stat_nanoseconds (struct tar_stat_info *st)
-{
-#if defined(HAVE_STRUCT_STAT_ST_SPARE1)
-  st->atime_nsec = st->stat.st_spare1 * 1000;
-  st->mtime_nsec = st->stat.st_spare2 * 1000;
-  st->ctime_nsec = st->stat.st_spare3 * 1000;
-#elif defined(HAVE_STRUCT_STAT_ST_ATIM_TV_NSEC)
-  st->atime_nsec = st->stat.st_atim.tv_nsec;
-  st->mtime_nsec = st->stat.st_mtim.tv_nsec;
-  st->ctime_nsec = st->stat.st_ctim.tv_nsec;
-#elif defined(HAVE_STRUCT_STAT_ST_ATIMESPEC_TV_NSEC)
-  st->atime_nsec = st->stat.st_atimespec.tv_nsec;
-  st->mtime_nsec = st->stat.st_mtimespec.tv_nsec;
-  st->ctime_nsec = st->stat.st_ctimespec.tv_nsec;
-#elif defined(HAVE_STRUCT_STAT_ST_ATIMENSEC)
-  st->atime_nsec = st->stat.st_atimensec;
-  st->mtime_nsec = st->stat.st_mtimensec;
-  st->ctime_nsec = st->stat.st_ctimensec;
-#else
-  st->atime_nsec  = st->mtime_nsec = st->ctime_nsec = 0;
-#endif
-}
-
 #if MSDOS
 
 bool
@@ -356,12 +332,10 @@ sys_child_open_for_compress (void)
   xclose (parent_pipe[PWRITE]);
 
   /* Check if we need a grandchild tar.  This happens only if either:
-     a) we are writing stdout: to force reblocking;
-     b) the file is to be accessed by rmt: compressor doesn't know how;
-     c) the file is not a plain file.  */
+     a) the file is to be accessed by rmt: compressor doesn't know how;
+     b) the file is not a plain file.  */
 
-  if (strcmp (archive_name_array[0], "-") != 0
-      && !_remdev (archive_name_array[0])
+  if (!_remdev (archive_name_array[0])
       && is_regular_file (archive_name_array[0]))
     {
       if (backup_option)
@@ -369,20 +343,21 @@ sys_child_open_for_compress (void)
 
       /* We don't need a grandchild tar.  Open the archive and launch the
 	 compressor.  */
-
-      archive = creat (archive_name_array[0], MODE_RW);
-      if (archive < 0)
+      if (strcmp (archive_name_array[0], "-"))
 	{
-	  int saved_errno = errno;
-
-	  if (backup_option)
-	    undo_last_backup ();
-	  errno = saved_errno;
-	  open_fatal (archive_name_array[0]);
+	  archive = creat (archive_name_array[0], MODE_RW);
+	  if (archive < 0)
+	    {
+	      int saved_errno = errno;
+	      
+	      if (backup_option)
+		undo_last_backup ();
+	      errno = saved_errno;
+	      open_fatal (archive_name_array[0]);
+	    }
+	  xdup2 (archive, STDOUT_FILENO);
 	}
-      xdup2 (archive, STDOUT_FILENO);
-      execlp (use_compress_program_option, use_compress_program_option,
-	      (char *) 0);
+      execlp (use_compress_program_option, use_compress_program_option, NULL);
       exec_fatal (use_compress_program_option);
     }
 
@@ -635,23 +610,36 @@ dec_to_env (char *envar, uintmax_t num)
   char *numstr;
 
   numstr = STRINGIFY_BIGINT (num, buf);
-  setenv (envar, numstr, 1);
+  if (setenv (envar, numstr, 1) != 0)
+    xalloc_die ();
+}
+
+static void
+time_to_env (char *envar, struct timespec t)
+{
+  char buf[TIMESPEC_STRSIZE_BOUND];
+  if (setenv (envar, code_timespec (t, buf), 1) != 0)
+    xalloc_die ();
 }
 
 static void
 oct_to_env (char *envar, unsigned long num)
 {
   char buf[1+1+(sizeof(unsigned long)*CHAR_BIT+2)/3];
-  
+
   snprintf (buf, sizeof buf, "0%lo", num);
-  setenv (envar, buf, 1);
+  if (setenv (envar, buf, 1) != 0)
+    xalloc_die ();
 }
 
 static void
 str_to_env (char *envar, char const *str)
 {
   if (str)
-    setenv (envar, str, 1);
+    {
+      if (setenv (envar, str, 1) != 0)
+	xalloc_die ();
+    }
   else
     unsetenv (envar);
 }
@@ -662,7 +650,8 @@ chr_to_env (char *envar, char c)
   char buf[2];
   buf[0] = c;
   buf[1] = 0;
-  setenv (envar, buf, 1);
+  if (setenv (envar, buf, 1) != 0)
+    xalloc_die ();
 }
 
 static void
@@ -674,12 +663,12 @@ stat_to_env (char *name, char type, struct tar_stat_info *st)
   str_to_env ("TAR_REALNAME", st->file_name);
   str_to_env ("TAR_UNAME", st->uname);
   str_to_env ("TAR_GNAME", st->gname);
-  dec_to_env ("TAR_MTIME", st->stat.st_mtime);
-  dec_to_env ("TAR_ATIME", st->stat.st_atime);
-  dec_to_env ("TAR_CTIME", st->stat.st_ctime);
+  time_to_env ("TAR_ATIME", st->atime);
+  time_to_env ("TAR_MTIME", st->mtime);
+  time_to_env ("TAR_CTIME", st->ctime);
   dec_to_env ("TAR_SIZE", st->stat.st_size);
   dec_to_env ("TAR_UID", st->stat.st_uid);
-  dec_to_env ("TAR_GID", st->stat.st_gid);     
+  dec_to_env ("TAR_GID", st->stat.st_gid);
 
   switch (type)
     {
@@ -713,7 +702,7 @@ sys_exec_command (char *file_name, int typechar, struct tar_stat_info *st)
 {
   int p[2];
   char *argv[4];
-  
+
   xpipe (p);
   pipe_handler = signal (SIGPIPE, SIG_IGN);
   pid = xfork ();
@@ -727,7 +716,7 @@ sys_exec_command (char *file_name, int typechar, struct tar_stat_info *st)
   /* Child */
   xdup2 (p[PREAD], STDIN_FILENO);
   xclose (p[PWRITE]);
-  
+
   stat_to_env (file_name, typechar, st);
 
   argv[0] = "/bin/sh";
@@ -744,7 +733,7 @@ void
 sys_wait_command (void)
 {
   int status;
-  
+
   if (pid < 0)
     return;
 
@@ -776,4 +765,3 @@ sys_wait_command (void)
 }
 
 #endif /* not MSDOS */
-