parseopt: add PARSE_OPT_KEEP_UNKNOWN

diff --git a/parse-options.c b/parse-options.c
index 4c5d09dd25aede8ea7e14886f5c17ed847a8f0d9..39808ae45850c7dc96f6288b969ba34be1556c39 100644 (file)
--- a/parse-options.c
+++ b/parse-options.c
@@ -274,7 +274,7 @@ int parse_options_step(struct parse_opt_ctx_t *ctx,
                        case -1:
                                return parse_options_usage(usagestr, options);
                        case -2:
-                               return PARSE_OPT_UNKNOWN;
+                               goto unknown;
                        }
                        if (ctx->opt)
                                check_typos(arg + 1, options);
@@ -292,7 +292,7 @@ int parse_options_step(struct parse_opt_ctx_t *ctx,
                                         */
                                        ctx->argv[0] = xstrdup(ctx->opt - 1);
                                        *(char *)ctx->argv[0] = '-';
-                                       return PARSE_OPT_UNKNOWN;
+                                       goto unknown;
                                }
                        }
                        continue;
@@ -314,8 +314,14 @@ int parse_options_step(struct parse_opt_ctx_t *ctx,
                case -1:
                        return parse_options_usage(usagestr, options);
                case -2:
-                       return PARSE_OPT_UNKNOWN;
+                       goto unknown;
                }
+               continue;
+unknown:
+               if (!(ctx->flags & PARSE_OPT_KEEP_UNKNOWN))
+                       return PARSE_OPT_UNKNOWN;
+               ctx->out[ctx->cpidx++] = ctx->argv[0];
+               ctx->opt = NULL;
        }
        return PARSE_OPT_DONE;
 }