Add a routine to "epan/filesystem.c" to test whether a file is a FIFO.

Use that in Tethereal rather than duplicating a pile of macros.

Get rid of the remaining uses of "stat()" in Tethereal - none of them
are necessary (they were just cut-and-pasted from Ethereal).

svn path=/trunk/; revision=5746

2 files changed, 29 insertions, 2 deletions

diff --git a/epan/filesystem.c b/epan/filesystem.c
index 247512fb90..ffb487445e 100644
--- a/epan/filesystem.c
+++ b/epan/filesystem.c
@@ -1,7 +1,7 @@
 /* filesystem.c
  * Filesystem utility routines
  *
- * $Id: filesystem.c,v 1.17 2002/03/02 20:48:10 guy Exp $
+ * $Id: filesystem.c,v 1.18 2002/06/23 21:33:09 guy Exp $
  *
  * Ethereal - Network traffic analyzer
  * By Gerald Combs <gerald@ethereal.com>
@@ -195,6 +195,20 @@ test_for_directory(const char *path)
 		return 0;
 }
 
+int
+test_for_fifo(const char *path)
+{
+	struct stat statb;
+
+	if (stat(path, &statb) < 0)
+		return errno;
+
+	if (S_ISFIFO(statb.st_mode))
+		return ESPIPE;
+	else
+		return 0;
+}
+
 /*
  * Get the directory in which Ethereal's global configuration and data
  * files are stored.
diff --git a/epan/filesystem.h b/epan/filesystem.h
index 6ad4078473..44f51748dc 100644
--- a/epan/filesystem.h
+++ b/epan/filesystem.h
@@ -1,7 +1,7 @@
 /* filesystem.h
  * Filesystem utility definitions
  *
- * $Id: filesystem.h,v 1.10 2001/10/24 07:18:37 guy Exp $
+ * $Id: filesystem.h,v 1.11 2002/06/23 21:33:09 guy Exp $
  *
  * Ethereal - Network traffic analyzer
  * By Gerald Combs <gerald@ethereal.com>
@@ -58,6 +58,19 @@ char *get_dirname(char *);
 int test_for_directory(const char *);
 
 /*
+ * Given a pathname, return:
+ *
+ *	the errno, if an attempt to "stat()" the file fails;
+ *
+ *	ESPIPE, if the attempt succeeded and the file turned out
+ *	to be a FIFO;
+ *
+ *	0, if the attempt succeeded and the file turned out not
+ *	to be a FIFO.
+ */
+int test_for_fifo(const char *);
+
+/*
  * Get the directory in which global configuration and data files are
  * stored.
  */