* src/argp/strndup.c, src/argp/strchrnul.c src/argp/mempcpy.c:

Moved replacement functions to separate files.

Rev: src/argp/mempcpy.c:1.1
Rev: src/argp/strchrnul.c:1.1
Rev: src/argp/strndup.c:1.1

src/argp/mempcpy.c

+/* strndup.c
+ *
+ */
+
+/* Written by Niels Möller <nisse@lysator.liu.se>
+ *
+ * This file is hereby placed in the public domain.
+ */
+
+#include <string.h>
+
+void *
+mempcpy (void *to, const void *from, size_t size)
+{
+  memcpy(to, from, size);
+  return (char *) to + size;
+}
+

src/argp/strchrnul.c

+/* strchrnul.c
+ *
+ */
+
+/* Written by Niels Möller <nisse@lysator.liu.se>
+ *
+ * This file is hereby placed in the public domain.
+ */
+
+/* FIXME: What is this function supposed to do? My guess is that it is
+ * like strchr, but returns a pointer to the NUL character, not a NULL
+ * pointer, if the character isn't found. */
+
+char *strchrnul(const char *s, int c)
+{
+  const char *p = s;
+  while (*p && (*p != c))
+    p++;
+
+  return (char *) p;
+}

src/argp/strndup.c

+/* strndup.c
+ *
+ */
+
+/* Written by Niels Mller <nisse@lysator.liu.se>
+ *
+ * This file is hereby placed in the public domain.
+ */
+
+#include <stdlib.h>
+#include <string.h>
+
+char *
+strndup (const char *s, size_t size)
+{
+  char *r;
+  char *end = memchr(s, 0, size);
+  
+  if (end)
+    /* Length + 1 */
+    size = end - s + 1;
+  
+  r = malloc(size);
+
+  if (size)
+    {
+      memcpy(r, s, size-1);
+      r[size-1] = '\0';
+    }
+  return r;
+}