strv: introduce strv_find_prefix()

src/strv.c

@@ -31,7 +31,6 @@
 char *strv_find(char **l, const char *name) {
         char **i;
 
-        assert(l);
         assert(name);
 
         STRV_FOREACH(i, l)
@@ -41,6 +40,18 @@ char *strv_find(char **l, const char *name) {
         return NULL;
 }
 
+char *strv_find_prefix(char **l, const char *name) {
+        char **i;
+
+        assert(name);
+
+        STRV_FOREACH(i, l)
+                if (startswith(*i, name))
+                        return *i;
+
+        return NULL;
+}
+
 void strv_free(char **l) {
         char **k;
 

src/strv.h

@@ -28,6 +28,8 @@
 #include "macro.h"
 
 char *strv_find(char **l, const char *name);
+char *strv_find_prefix(char **l, const char *name);
+
 void strv_free(char **l);
 char **strv_copy(char **l) _malloc_;
 unsigned strv_length(char **l);