X-Git-Url: https://git.notmuchmail.org/git?p=notmuch;a=blobdiff_plain;f=sprinter-json.c;h=0a077907cd83368c339c320968ef2b8a5e91f7d8;hp=4649655179b25b71512504806f1977c4747a7b9c;hb=3fed6736a7ef8b8b1f05d0fabb136bdd3b5917ee;hpb=36522fca1cac6ca23c2c4c0280e3e20e96f7bfbb;ds=sidebyside

diff --git a/sprinter-json.c b/sprinter-json.c
index 46496551..0a077907 100644
--- a/sprinter-json.c
+++ b/sprinter-json.c
@@ -88,8 +88,13 @@ json_end (struct sprinter *sp)
 	fputc ('\n', spj->stream);
 }
 
+/* This implementation supports embedded NULs as allowed by the JSON
+ * specification and Unicode.  Support for *parsing* embedded NULs
+ * varies, but is generally not a problem outside of C-based parsers
+ * (Python's json module and Emacs' json.el take embedded NULs in
+ * stride). */
 static void
-json_string (struct sprinter *sp, const char *val)
+json_string_len (struct sprinter *sp, const char *val, size_t len)
 {
     static const char *const escapes[] = {
 	['\"'] = "\\\"", ['\\'] = "\\\\", ['\b'] = "\\b",
@@ -98,7 +103,7 @@ json_string (struct sprinter *sp, const char *val)
     struct sprinter_json *spj = json_begin_value (sp);
 
     fputc ('"', spj->stream);
-    for (; *val; ++val) {
+    for (; len; ++val, --len) {
 	unsigned char ch = *val;
 	if (ch < ARRAY_SIZE (escapes) && escapes[ch])
 	    fputs (escapes[ch], spj->stream);
@@ -110,6 +115,14 @@ json_string (struct sprinter *sp, const char *val)
     fputc ('"', spj->stream);
 }
 
+static void
+json_string (struct sprinter *sp, const char *val)
+{
+    if (val == NULL)
+	val = "";
+    json_string_len (sp, val, strlen (val));
+}
+
 static void
 json_integer (struct sprinter *sp, int val)
 {
@@ -166,6 +179,7 @@ sprinter_json_create (const void *ctx, FILE *stream)
 	    .begin_list = json_begin_list,
 	    .end = json_end,
 	    .string = json_string,
+	    .string_len = json_string_len,
 	    .integer = json_integer,
 	    .boolean = json_boolean,
 	    .null = json_null,