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use json_escape_unescape_len()

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This avoids making an extra copy of the escaped string.

Note that jsonrpc_command_add() no longer accepts usage strings
containing invalid escape sequences. (Previously, it would quietly
accept such a string without unescaping anything.)

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This commit is contained in:
Matt Whitlock
2025-08-15 10:25:29 +09:30
committed by Rusty Russell
parent 4031860630
commit c28f5e70a8
4 changed files with 8 additions and 20 deletions
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6
common/test/run-bolt12_decode.c
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@@ -190,13 +190,11 @@ int main(int argc, char *argv[])
char *fail;
const char *str;
size_t dlen;
struct json_escape *esc;
assert(json_to_bool(json, json_get_member(json, t, "valid"), &valid));
strtok = json_get_member(json, t, "string");
esc = json_escape_string_(tmpctx, json + strtok->start,
strtok->end - strtok->start);
str = json_escape_unescape(tmpctx, esc);
str = json_escape_unescape_len(tmpctx, json + strtok->start,
strtok->end - strtok->start);
actual = (string_to_data(tmpctx, str, strlen(str),
"lno", &dlen, &fail) != NULL);
assert(actual == valid);