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json: just blatt weird characters in string.

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Don't try to escape them.  It's whack-a-mole and they shouldn't do it anyway.

Suggested-by: Christian Decker
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell 2017-11-01 10:07:33 +10:30
parent 1ec19093f7
commit 8f17effeeb
1 changed files with 8 additions and 7 deletions
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15
common/json.c
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@ -412,16 +412,17 @@ void json_add_literal(struct json_result *result, const char *fieldname,
void json_add_string(struct json_result *result, const char *fieldname, const char *value)
{
char *escaped = tal_arr(result, char, strlen(value) * 2 + 1);
size_t i, n;
char *escaped = tal_strdup(result, value);
size_t i;
json_start_member(result, fieldname);
for (i = n = 0; value[i]; i++) {
if (value[i] == '\\' || value[i] == '"')
escaped[n++] = '\\';
escaped[n++] = value[i];
for (i = 0; escaped[i]; i++) {
/* Replace any funny business. Better safe than accurate! */
if (escaped[i] == '\\'
|| escaped[i] == '"'
|| !cisprint(escaped[i]))
escaped[i] = '?';
}
escaped[n] = '\0';
result_append_fmt(result, "\"%s\"", escaped);
}