From b7c461d025b6db1f9c3e0ce137863d9f912cdbfa Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Wed, 30 Jan 2008 02:58:57 +0100
Subject: [PATCH] add strict mode flag (enabled by default, can be disabled to
 ignore lines with parser errors)

---
 cli.c    | 27 +++++++++++++++++++++++++++
 file.c   | 10 ++++++++++
 libuci.c |  1 +
 uci.h    |  8 ++++++++
 4 files changed, 46 insertions(+)

diff --git a/cli.c b/cli.c
index 043ba1a..7139f0b 100644
--- a/cli.c
+++ b/cli.c
@@ -12,6 +12,7 @@
  */
 #include <strings.h>
 #include <stdlib.h>
+#include <unistd.h>
 #include "uci.h"
 
 static const char *appname = "uci";
@@ -208,13 +209,39 @@ static int uci_cmd(int argc, char **argv)
 int main(int argc, char **argv)
 {
 	int ret;
+	int c;
 
 	ctx = uci_alloc_context();
+	if (!ctx) {
+		fprintf(stderr, "Out of memory\n");
+		return 1;
+	}
+
+	while((c = getopt(argc, argv, "sS")) != -1) {
+		switch(c) {
+			case 's':
+				ctx->flags |= UCI_FLAG_STRICT;
+				break;
+			case 'S':
+				ctx->flags &= ~UCI_FLAG_STRICT;
+				ctx->flags |= UCI_FLAG_PERROR;
+				break;
+			default:
+				uci_usage(argc, argv);
+				break;
+		}
+	}
+	if (optind > 1)
+		argv[optind - 1] = argv[0];
+	argv += optind - 1;
+	argc -= optind - 1;
+
 	if (argc < 2)
 		uci_usage(argc, argv);
 	ret = uci_cmd(argc - 1, argv + 1);
 	if (ret == 255)
 		uci_usage(argc, argv);
+
 	uci_free_context(ctx);
 
 	return ret;
diff --git a/file.c b/file.c
index b8aa865..be63247 100644
--- a/file.c
+++ b/file.c
@@ -502,8 +502,18 @@ int uci_import(struct uci_context *ctx, FILE *stream, const char *name, struct u
 
 	while (!feof(pctx->file)) {
 		uci_getln(ctx, 0);
+
+		UCI_TRAP_SAVE(ctx, error);
 		if (pctx->buf[0])
 			uci_parse_line(ctx, single);
+		UCI_TRAP_RESTORE(ctx);
+		continue;
+error:
+		if (ctx->flags & UCI_FLAG_PERROR)
+			uci_perror(ctx, NULL);
+		if ((ctx->errno != UCI_ERR_PARSE) ||
+			(ctx->flags & UCI_FLAG_STRICT))
+			UCI_THROW(ctx, ctx->errno);
 	}
 
 	if (package)
diff --git a/libuci.c b/libuci.c
index 74b3d7b..0dd81fe 100644
--- a/libuci.c
+++ b/libuci.c
@@ -47,6 +47,7 @@ struct uci_context *uci_alloc_context(void)
 	ctx = (struct uci_context *) malloc(sizeof(struct uci_context));
 	memset(ctx, 0, sizeof(struct uci_context));
 	uci_list_init(&ctx->root);
+	ctx->flags = UCI_FLAG_STRICT;
 
 	return ctx;
 }
diff --git a/uci.h b/uci.h
index 78a0249..e0b3d30 100644
--- a/uci.h
+++ b/uci.h
@@ -220,6 +220,11 @@ enum uci_type {
 	UCI_TYPE_OPTION = 3
 };
 
+enum uci_flags {
+	UCI_FLAG_STRICT = (1 << 0), /* strict mode for the parser */
+	UCI_FLAG_PERROR = (1 << 1), /* print error messages to stderr */
+};
+
 struct uci_element
 {
 	struct uci_list list;
@@ -235,6 +240,9 @@ struct uci_context
 	/* parser context, use for error handling only */
 	struct uci_parse_context *pctx;
 
+	/* uci runtime flags */
+	enum uci_flags flags;
+
 	/* private: */
 	int errno;
 	const char *func;
-- 
2.25.1