1 files changed, 66 insertions, 0 deletions
diff --git a/mount/xmalloc.c b/mount/xmalloc.c
new file mode 100644
index 000000000..c3f51e50c
--- /dev/null
+++ b/mount/xmalloc.c
@@ -0,0 +1,66 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>	/* strdup() */
+#include "xmalloc.h"
+#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)
+		die(EX_SYSERR, _("not enough memory"));
+}
+
+void *
+xmalloc (size_t size) {
+	void *t;
+
+	if (size == 0)
+		return NULL;
+
+	t = malloc(size);
+	die_if_null(t);
+
+	return t;
+}
+
+void *
+xrealloc (void *p, size_t size) {
+	void *t;
+
+	t = realloc(p, size);
+	die_if_null(t);
+
+	return t;
+}
+
+char *
+xstrdup (const char *s) {
+	char *t;
+
+	if (s == NULL)
+		return NULL;
+
+	t = strdup(s);
+	die_if_null(t);
+
+	return t;
+}