src/common.[ch]: Implement strarray_{add,free}.

diff --git a/src/common.c b/src/common.c
index b679bf70f4ccff6a385c47b5fb4f47ccbd26a8b1..82a4f017dc9c04a734e47160c10f84b632670b30 100644 (file)
--- a/src/common.c
+++ b/src/common.c
@@ -1396,3 +1396,35 @@ int strtoderive (const char *string, derive_t *ret_value) /* {{{ */
        *ret_value = tmp;
        return (0);
 } /* }}} int strtoderive */
+
+int strarray_add (char ***ret_array, size_t *ret_array_len, char const *str) /* {{{ */
+{
+       char **array;
+       size_t array_len = *ret_array_len;
+
+       if (str == NULL)
+               return (EINVAL);
+
+       array = realloc (*ret_array,
+            (array_len + 1) * sizeof (*array));
+       if (array == NULL)
+               return (ENOMEM);
+       *ret_array = array;
+
+       array[array_len] = strdup (str);
+       if (array[array_len] == NULL)
+               return (ENOMEM);
+
+       array_len++;
+        *ret_array_len = array_len;
+       return (0);
+} /* }}} int strarray_add */
+
+void strarray_free (char **array, size_t array_len) /* {{{ */
+{
+       size_t i;
+
+       for (i = 0; i < array_len; i++)
+               sfree (array[i]);
+       sfree (array);
+} /* }}} void strarray_free */

diff --git a/src/common.h b/src/common.h
index 8a7d986534919efa65e449c17313882f363cce93..2c74436318fecee1f9189bbfb6e658e28531d3f1 100644 (file)
--- a/src/common.h
+++ b/src/common.h
@@ -317,4 +317,7 @@ int service_name_to_port_number (const char *service_name);
  * failure. If failure is returned, ret_value is not touched. */
 int strtoderive (const char *string, derive_t *ret_value);
 
+int strarray_add (char ***ret_array, size_t *ret_array_len, char const *str);
+void strarray_free (char **array, size_t array_len);
+
 #endif /* COMMON_H */