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Use snprintf(...) instead of sprintf(...)

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This commit is contained in:
practicalswift
2018-07-31 14:56:04 +02:00
committed by Rusty Russell
parent 0f7b11bdc2
commit 9d9a9523d0
7 changed files with 12 additions and 12 deletions
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4
lightningd/bitcoind.c
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@@ -350,7 +350,7 @@ static void do_one_estimatefee(struct bitcoind *bitcoind,
{
char blockstr[STR_MAX_CHARS(u32)];
sprintf(blockstr, "%u", efee->blocks[efee->i]);
snprintf(blockstr, sizeof(blockstr), "%u", efee->blocks[efee->i]);
start_bitcoin_cli(bitcoind, NULL, process_estimatefee, false, NULL, efee,
"estimatesmartfee", blockstr, efee->estmode[efee->i],
NULL);
@@ -682,7 +682,7 @@ void bitcoind_getblockhash_(struct bitcoind *bitcoind,
void *arg)
{
char str[STR_MAX_CHARS(height)];
sprintf(str, "%u", height);
snprintf(str, sizeof(str), "%u", height);
start_bitcoin_cli(bitcoind, NULL, process_getblockhash, true, cb, arg,
"getblockhash", str, NULL);

8
lightningd/log.c
View File

@@ -360,12 +360,12 @@ static void log_one_line(unsigned int skipped,
char buf[101];
if (skipped) {
sprintf(buf, "%s... %u skipped...", data->prefix, skipped);
snprintf(buf, sizeof(buf), "%s... %u skipped...", data->prefix, skipped);
write_all(data->fd, buf, strlen(buf));
data->prefix = "\n";
}
sprintf(buf, "%s+%lu.%09u %s%s: ",
snprintf(buf, sizeof(buf), "%s+%lu.%09u %s%s: ",
data->prefix,
(unsigned long)diff.ts.tv_sec,
(unsigned)diff.ts.tv_nsec,
@@ -501,7 +501,7 @@ static void log_dump_to_file(int fd, const struct log_book *lr)
}
start = lr->init_time.ts.tv_sec;
len = sprintf(buf, "%zu bytes, %s", lr->mem_used, ctime(&start));
len = snprintf(buf, sizeof(buf), "%zu bytes, %s", lr->mem_used, ctime(&start));
write_all(fd, buf, len);
/* ctime includes \n... WTF? */
@@ -579,7 +579,7 @@ static void json_add_time(struct json_result *result, const char *fieldname,
{
char timebuf[100];
sprintf(timebuf, "%lu.%09u",
snprintf(timebuf, sizeof(timebuf), "%lu.%09u",
(unsigned long)ts.tv_sec,
(unsigned)ts.tv_nsec);
json_add_string(result, fieldname, timebuf);

2
lightningd/memdump.c
View File

@@ -15,7 +15,7 @@ static void json_add_ptr(struct json_result *response, const char *name,
const void *ptr)
{
char ptrstr[STR_MAX_CHARS(void *)];
sprintf(ptrstr, "%p", ptr);
snprintf(ptrstr, sizeof(ptrstr), "%p", ptr);
json_add_string(response, name, ptrstr);
}