Add safe_realloc

Author: acv

src/safe.c

@@ -1,3 +1,4 @@
+/* vim: set et ts=4 sts=4 sw=4 : */
 /********************************************************************\
  * This program is free software; you can redistribute it and/or    *
  * modify it under the terms of the GNU General Public License as   *
@@ -55,6 +56,18 @@ void * safe_malloc (size_t size) {
 	return (retval);
 }
 
+void *
+safe_realloc(void *ptr, size_t newsize)
+{
+    void *retval = NULL;
+    retval = realloc(ptr, newsize);
+    if (NULL == retval) {
+        debug(LOG_CRIT, "Failed to realloc buffer to %d bytes of memory: %s. Bailing out", newsize, strerror(errno));
+        exit(1);
+    }
+    return retval;
+}
+
 char * safe_strdup(const char *s) {
 	char * retval = NULL;
 	if (!s) {

src/safe.h

@@ -33,19 +33,22 @@
 
 /** @brief Safe version of malloc
  */
-void * safe_malloc (size_t size);
+void *safe_malloc(size_t);
+
+/** @brief Safe version of realloc */
+void *realloc(void *, size_t);
 
 /* @brief Safe version of strdup
  */
-char * safe_strdup(const char *s);
+char * safe_strdup(const char *);
 
 /* @brief Safe version of asprintf
  */
-int safe_asprintf(char **strp, const char *fmt, ...);
+int safe_asprintf(char **, const char *, ...);
 
 /* @brief Safe version of vasprintf
  */
-int safe_vasprintf(char **strp, const char *fmt, va_list ap);
+int safe_vasprintf(char **, const char *, va_list);
 
 /* @brief Safe version of fork
  */