[PATCH] xgethostbyname using realloc()

[Robert Millan]

This makes it easier to import xgethostname.c into an external
program.

2009-08-29  Robert Millan  <rmh....@aybabtu.com>

        * lib/xgethostname.c: Remove `"xalloc.h"'.
        (xgethostname): Use realloc() instead of x2realloc().

-- 
Robert Millan

  The DRM opt-in fallacy: "Your data belongs to us. We will decide when (and
  how) you may access your data; but nobody's threatening your freedom: we
  still allow you to remove your data and not access it at all."

diff --git a/lib/xgethostname.c b/lib/xgethostname.c
index 875d497..1792908 100644
--- a/lib/xgethostname.c
+++ b/lib/xgethostname.c
@@ -27,8 +27,6 @@
 #include <errno.h>
 #include <unistd.h>
 
-#include "xalloc.h"
-
 #ifndef ENAMETOOLONG
 # define ENAMETOOLONG 0
 #endif
@@ -43,7 +41,7 @@
 char *
 xgethostname (void)
 {
-  char *hostname = NULL;
+  char *hostname = NULL, *tmp;
   size_t size = INITIAL_HOSTNAME_LENGTH;
 
   while (1)
@@ -53,7 +51,13 @@ xgethostname (void)
 	 even when the name is as long as the supplied buffer.  */
       size_t size_1;
 
-      hostname = x2realloc (hostname, &size);
+      tmp = realloc (hostname, size);
+      if (! tmp)
+	{
+	  perror ("realloc");
+	  exit (1);
+	}
+      hostname = tmp;
       size_1 = size - 1;
       hostname[size_1 - 1] = '\0';
       errno = 0;