mount: cleanup error() and die()

* moves error() and die() to sundries.h
 * removes at_die
 * adds __attribute__ ((__format__ (__printf__ )))

Signed-off-by: Karel Zak <kzak@redhat.com>

mount/fstab.c

@@ -813,7 +813,6 @@ update_mtab (const char *dir, struct my_mntent *instead) {
 
 /* dummy */
 int verbose;
-int mount_quiet;
 char *progname;
 
 const char *fsprobe_get_label_by_devname(const char *spec) { return NULL; }

mount/mount.c

@@ -50,9 +50,6 @@
 #include "setproctitle.h"
 #endif
 
-/* Quiet mode */
-int mount_quiet = 0;
-
 /* True for fake mount (-f).  */
 static int fake = 0;
 

mount/sundries.c

@@ -18,6 +18,8 @@
 #include "xmalloc.h"
 #include "nls.h"
 
+int mount_quiet;
+
 char *
 xstrndup (const char *s, int n) {
      char *t;
@@ -108,6 +110,19 @@ error (const char *fmt, ...) {
      fputc('\n', stderr);
 }
 
+/* Fatal error.  Print message and exit.  */
+void
+die(int err, const char *fmt, ...) {
+	va_list args;
+
+	va_start(args, fmt);
+	vfprintf(stderr, fmt, args);
+	fprintf(stderr, "\n");
+	va_end(args);
+
+	exit(err);
+}
+
 /* True if fstypes match.  Null *TYPES means match anything,
    except that swap types always return false. */
 /* Accept nonfs,proc,devpts and nonfs,noproc,nodevpts

mount/sundries.h

@@ -22,9 +22,14 @@ extern int sloppy;
 
 #define streq(s, t)	(strcmp ((s), (t)) == 0)
 
-/* Functions in sundries.c that are used in mount.c and umount.c  */ 
+/* Functions in sundries.c that are used in mount.c and umount.c  */
 void block_signals (int how);
-void error (const char *fmt, ...);
+
+void error (const char *fmt, ...)
+	__attribute__ ((__format__ (__printf__, 1, 2)));
+void die(int err, const char *fmt, ...)
+	__attribute__ ((__format__ (__printf__, 2, 3)));
+
 int matching_type (const char *type, const char *types);
 int matching_opts (const char *options, const char *test_opts);
 void *xmalloc (size_t size);
@@ -35,8 +40,6 @@ char *xstrconcat4 (char *, const char *, const char *, const char *);
 
 int parse_spec(const char *spec, char **name, char **value);
 
-void die (int errcode, const char *fmt, ...);
-
 /* exit status - bits below are ORed */
 #define EX_USAGE	1	/* incorrect invocation or permission */
 #define EX_SYSERR	2	/* out of memory, cannot fork, ... */

mount/swapon.c

@@ -36,7 +36,6 @@
 int all = 0;
 int verbose = 0;
 int priority = -1;	/* non-prioritized swap by default */
-int mount_quiet = 0;
 
 /* If true, don't complain if the device/file doesn't exist */
 int ifexists = 0;

mount/umount.c

@@ -400,8 +400,6 @@ usage (FILE *fp, int n)
   exit (n);
 }
 
-int mount_quiet = 0;
-
 /*
  * Look for an option in a comma-separated list
  */

mount/xmalloc.c

@@ -5,24 +5,6 @@
 #include "nls.h"	/* _() */
 #include "sundries.h"	/* EX_SYSERR */
 
-void (*at_die)(void) = NULL;
-
-/* Fatal error.  Print message and exit.  */
-void
-die(int err, const char *fmt, ...) {
-	va_list args;
-
-	va_start(args, fmt);
-	vfprintf(stderr, fmt, args);
-	fprintf(stderr, "\n");
-	va_end(args);
-
-	if (at_die)
-		(*at_die)();
-
-	exit(err);
-}
-
 static void
 die_if_null(void *t) {
 	if (t == NULL)

mount/xmalloc.h

@@ -1,8 +1,8 @@
-#include <sys/types.h>
-#include <stdarg.h>
+#ifndef MOUNT_XMALLOC_H
+#define MOUNT_XMALLOC_H
 
 extern void *xmalloc(size_t size);
 extern void *xrealloc(void *p, size_t size);
 extern char *xstrdup(const char *s);
-extern void die(int err, const char *fmt, ...);
-extern void (*at_die)(void);
+
+#endif  /* MOUNT_XMALLOC_H */