lib/util Move simple string routines into common code.

[sfrench/samba-autobuild/.git] / lib / util / util_strlist.c

diff --git a/lib/util/util_strlist.c b/lib/util/util_strlist.c
index 953862da85fab967cc53bc76bb33f091e886d208..e8d2a74221803d92fdbbd47c461db342e1dde97a 100644 (file)
--- a/lib/util/util_strlist.c
+++ b/lib/util/util_strlist.c
@@ -446,6 +446,32 @@ _PUBLIC_ const char **str_list_append_const(const char **list1,
        return ret;
 }
 
+/**
+ * Add a string to an array of strings.
+ *
+ * num should be a pointer to an integer that holds the current
+ * number of elements in strings. It will be updated by this function.
+ */
+_PUBLIC_ bool add_string_to_array(TALLOC_CTX *mem_ctx,
+                        const char *str, const char ***strings, int *num)
+{
+       char *dup_str = talloc_strdup(mem_ctx, str);
+
+       *strings = talloc_realloc(mem_ctx,
+                                   *strings,
+                                   const char *, ((*num)+1));
+
+       if ((*strings == NULL) || (dup_str == NULL)) {
+               *num = 0;
+               return false;
+       }
+
+       (*strings)[*num] = dup_str;
+       *num += 1;
+
+       return true;
+}
+
 /**
   add an entry to a string list
   this assumes s will not change