New utility function xmemdup().

diff --git a/include/util.h b/include/util.h
index edcd815..8b0bb40 100644 (file)
--- a/include/util.h
+++ b/include/util.h
@@ -80,6 +80,7 @@ void set_program_name(const char *);
 void *xmalloc(size_t);
 void *xcalloc(size_t, size_t);
 void *xrealloc(void *, size_t);
+void *xmemdup(const void *, size_t);
 char *xstrdup(const char *);
 char *xasprintf(const char *format, ...) PRINTF_FORMAT(1, 2);
 

diff --git a/lib/util.c b/lib/util.c
index 846ac88..04fcd90 100644 (file)
--- a/lib/util.c
+++ b/lib/util.c
@@ -75,13 +75,18 @@ xrealloc(void *p, size_t size)
     return p;
 }
 
+void *
+xmemdup(const void *p_, size_t size)
+{
+    void *p = xmalloc(size);
+    memcpy(p, p_, size);
+    return p;
+}
+
 char *
-xstrdup(const char *s_) 
+xstrdup(const char *s) 
 {
-    size_t size = strlen(s_) + 1;
-    char *s = xmalloc(size);
-    memcpy(s, s_, size);
-    return s;
+    return xmemdup(s, strlen(s) + 1);
 }
 
 char *