utils strings: Add stringv_append_if_missing().

[sysdb.git] / src / utils / strings.c

diff --git a/src/utils/strings.c b/src/utils/strings.c
index b6a49e10ab36831d709f559cda7de4f5cfd8d79a..d7668f076a27fc087262420e0c84ac86a83308d3 100644 (file)
--- a/src/utils/strings.c
+++ b/src/utils/strings.c
@@ -114,6 +114,21 @@ stringv_append(char ***s, size_t *s_len, const char *elem)
        return 0;
 } /* stringv_append */
 
+int
+stringv_append_if_missing(char ***s, size_t *s_len, const char *elem)
+{
+       size_t i;
+
+       if ((! s) || (! s_len))
+               return -1;
+
+       for (i = 0; i < *s_len; i++)
+               if (! strcmp((*s)[i], elem))
+                       return 0;
+
+       return stringv_append(s, s_len, elem);
+} /* stringv_append_if_missing */
+
 void
 stringv_free(char ***s, size_t *s_len)
 {