From d0fec7a322f6fcfa4ab0fe1a7de62cc86c1b8c4c Mon Sep 17 00:00:00 2001
From: hpa <hpa>
Date: Fri, 30 Mar 2001 01:02:55 +0000
Subject: [PATCH] Add replacement library files

---
 lib/Makefile    | 23 +++++++++++++++++++++++
 lib/bsdsignal.c | 21 +++++++++++++++++++++
 lib/xmalloc.c   | 21 +++++++++++++++++++++
 lib/xstrdup.c   | 22 ++++++++++++++++++++++
 4 files changed, 87 insertions(+)
 create mode 100644 lib/Makefile
 create mode 100644 lib/bsdsignal.c
 create mode 100644 lib/xmalloc.c
 create mode 100644 lib/xstrdup.c

diff --git a/lib/Makefile b/lib/Makefile
new file mode 100644
index 0000000..fb56fa7
--- /dev/null
+++ b/lib/Makefile
@@ -0,0 +1,23 @@
+#
+# Extra functions which may not be available everywhere
+#
+
+include ../MCONFIG
+include ../MRULES
+
+all:	libxtra.a
+
+install:
+
+clean:
+	-rm -f *.a *.o
+
+spotless: clean
+	-rm -f *~
+
+libxtra.a: $(LIBOBJS)
+	-rm -f libxtra.a
+	$(AR) libxtra.a $(LIBOBJS)
+	$(RANLIB) libxtra.a
+
+
diff --git a/lib/bsdsignal.c b/lib/bsdsignal.c
new file mode 100644
index 0000000..7740740
--- /dev/null
+++ b/lib/bsdsignal.c
@@ -0,0 +1,21 @@
+/*
+ * bsdsignal.c
+ *
+ * Use sigaction() to simulate BSD signal()
+ */
+
+#include <signal.h>
+#include <stdlib.h>
+#include <string.h>
+
+void bsd_signal(int signum, void (*handler)(int))
+{
+  struct sigaction action;
+
+  memset(&action, 0, sizeof action);
+  action.sa_handler = handler;
+  sigemptyset(&action.sa_mask);
+  action.sa_flags = SA_RESTART;
+  
+  sigaction(hander, action, NULL);
+}
diff --git a/lib/xmalloc.c b/lib/xmalloc.c
new file mode 100644
index 0000000..6e8ae24
--- /dev/null
+++ b/lib/xmalloc.c
@@ -0,0 +1,21 @@
+/*
+ * xmalloc.c
+ *
+ * Simple error-checking version of malloc()
+ *
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+
+void *xmalloc(size_t size)
+{
+  void *p = malloc(size);
+
+  if ( !p ) {
+    fprintf(stderr, "Out of memory!\n");
+    exit(128);
+  }
+
+  return p;
+}
diff --git a/lib/xstrdup.c b/lib/xstrdup.c
new file mode 100644
index 0000000..5d65b7e
--- /dev/null
+++ b/lib/xstrdup.c
@@ -0,0 +1,22 @@
+/*
+ * xstrdup.c
+ *
+ * Simple error-checking version of strdup()
+ *
+ */
+
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+
+char *xstrdup(const char *s)
+{
+  char *p = strdup(s);
+
+  if ( !p ) {
+    fprintf(stderr, "Out of memory!\n");
+    exit(128);
+  }
+
+  return p;
+}