Add nvti_add_tag() for adding a single tag to tags.

CHANGELOG.md

@@ -11,6 +11,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - A new data model for unified handling of cross references in the NVT meta data as been added. All previous API elements to handle cve, bid, xref werehas been removed. [#225](https://github.com/greenbone/gvm-libs/pull/225) [#232](https://github.com/greenbone/gvm-libs/pull/232).
 - A function to get an osp scan status and a enum type for the different status [#259](https://github.com/greenbone/gvm-libs/pull/259)
 - API functions for NVTI to handle timestamps [#261](https://github.com/greenbone/gvm-libs/pull/261)
+- API function for NVTI to add a single tag [#263](https://github.com/greenbone/gvm-libs/pull/263)
 ### Changed
 - Change the default path to the redis socket to /run/redis/redis.sock [#256](https://github.com/greenbone/gvm-libs/pull/256)
 - Handle EAI_AGAIN in gvm_host_reverse_lookup() IPv6 case and function refactor. [#229](https://github.com/greenbone/gvm-libs/pull/229)

base/nvti.c

@@ -1057,6 +1057,43 @@ nvti_set_solution_type (nvti_t *n, const gchar *solution_type)
   return (0);
 }
 
+/**
+ * @brief Add a tag to the NVT tags.
+ *
+ * @param n     The NVT Info structure.
+ *
+ * @param name  The tag name. A copy will be created from this.
+ *
+ * @param value The tag value. A copy will be created from this.
+ *
+ * @return 0 for success. Anything else indicates an error.
+ */
+int
+nvti_add_tag (nvti_t *n, const gchar *name, const gchar *value)
+{
+  if (!n)
+    return (-1);
+
+  if (!name || !name[0])
+    return (-2);
+
+  if (!value || !value[0])
+    return (-3);
+
+  if (n->tag)
+    {
+      gchar *newtag;
+
+      newtag = g_strconcat (n->tag, "|", name, "=", value, NULL);
+      g_free (n->tag);
+      n->tag = newtag;
+    }
+  else
+    n->tag = g_strconcat (name, "=", value, NULL);
+
+  return (0);
+}
+
 /**
  * @brief Set the tags of a NVT.
  *

base/nvti.h

@@ -156,6 +156,8 @@ nvti_set_solution (nvti_t *, const gchar *);
 int
 nvti_set_solution_type (nvti_t *, const gchar *);
 int
+nvti_add_tag (nvti_t *, const gchar *, const gchar *);
+int
 nvti_set_tag (nvti_t *, const gchar *);
 int
 nvti_set_cvss_base (nvti_t *, const gchar *);