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json: add and use a json_strdup() helper.

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Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell 2018-12-16 15:15:06 +10:30
parent adf08f8914
commit 22ca896b54
4 changed files with 14 additions and 13 deletions
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5
common/json.c
View File

@ -35,6 +35,11 @@ bool json_tok_streq(const char *buffer, const jsmntok_t *tok, const char *str)
return strncmp(buffer + tok->start, str, tok->end - tok->start) == 0;
}
char *json_strdup(const tal_t *ctx, const char *buffer, const jsmntok_t *tok)
{
return tal_strndup(ctx, buffer + tok->start, tok->end - tok->start);
}
bool json_to_u64(const char *buffer, const jsmntok_t *tok,
uint64_t *num)
{

3
common/json.h
View File

@ -23,6 +23,9 @@ int json_tok_len(const jsmntok_t *t);
/* Is this a string equal to str? */
bool json_tok_streq(const char *buffer, const jsmntok_t *tok, const char *str);
/* Allocate a tal string copy */
char *json_strdup(const tal_t *ctx, const char *buffer, const jsmntok_t *tok);
/* Extract number from this (may be a string, or a number literal) */
bool json_to_number(const char *buffer, const jsmntok_t *tok,
unsigned int *num);

3
lightningd/connect_control.c
View File

@ -99,8 +99,7 @@ static void json_connect(struct command *cmd,
return;
/* Check for id@addrport form */
id_str = tal_strndup(cmd, buffer + idtok->start,
idtok->end - idtok->start);
id_str = json_strdup(cmd, buffer, idtok);
atptr = strchr(id_str, '@');
if (atptr) {
int atidx = atptr - id_str;

16
lightningd/plugin.c
View File

@ -551,14 +551,12 @@ static bool plugin_opt_add(struct plugin *plugin, const char *buffer,
buffer + nametok->start);
popt->value = NULL;
if (defaulttok) {
popt->value = tal_strndup(popt, buffer + defaulttok->start,
defaulttok->end - defaulttok->start);
popt->value = json_strdup(popt, buffer, defaulttok);
popt->description = tal_fmt(
popt, "%.*s (default: %s)", desctok->end - desctok->start,
buffer + desctok->start, popt->value);
} else {
popt->description = tal_strndup(popt, buffer + desctok->start,
desctok->end - desctok->start);
popt->description = json_strdup(popt, buffer, desctok);
}
list_add_tail(&plugin->plugin_opts, &popt->list);
@ -722,14 +720,10 @@ static bool plugin_rpcmethod_add(struct plugin *plugin,
}
cmd = notleak(tal(plugin, struct json_command));
cmd->name = tal_strndup(cmd, buffer + nametok->start,
nametok->end - nametok->start);
cmd->description = tal_strndup(cmd, buffer + desctok->start,
desctok->end - desctok->start);
cmd->name = json_strdup(cmd, buffer, nametok);
cmd->description = json_strdup(cmd, buffer, desctok);
if (longdesctok)
cmd->verbose =
tal_strndup(cmd, buffer + longdesctok->start,
longdesctok->end - longdesctok->start);
cmd->verbose = json_strdup(cmd, buffer, longdesctok);
else
cmd->verbose = cmd->description;