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Change sprintf to snprint in cJSON.c 

https://github.com/Hamlib/Hamlib/issues/857
pull/928/head
Mike Black W9MDB 2022-01-08 17:26:54 -06:00
rodzic 086c3f7f1d
commit 0600adb077
1 zmienionych plików z 4 dodań i 4 usunięć
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8
lib/cJSON.c
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@ -124,7 +124,7 @@ CJSON_PUBLIC(double) cJSON_GetNumberValue(const cJSON * const item)
CJSON_PUBLIC(const char*) cJSON_Version(void) CJSON_PUBLIC(const char*) cJSON_Version(void)
{ {
static char version[15]; static char version[15];
sprintf(version, "%i.%i.%i", CJSON_VERSION_MAJOR, CJSON_VERSION_MINOR, CJSON_VERSION_PATCH); snprintf(version, sizeof(version), "%i.%i.%i", CJSON_VERSION_MAJOR, CJSON_VERSION_MINOR, CJSON_VERSION_PATCH);
return version; return version;
} }
@ -560,18 +560,18 @@ static cJSON_bool print_number(const cJSON * const item, printbuffer * const out
/* This checks for NaN and Infinity */ /* This checks for NaN and Infinity */
if (isnan(d) || isinf(d)) if (isnan(d) || isinf(d))
{ {
length = sprintf((char*)number_buffer, "null"); length = snprintf((char*)number_buffer, sizeof(number_buffer), "null");
} }
else else
{ {
/* Try 15 decimal places of precision to avoid nonsignificant nonzero digits */ /* Try 15 decimal places of precision to avoid nonsignificant nonzero digits */
length = sprintf((char*)number_buffer, "%1.15g", d); length = snprintf((char*)number_buffer, sizeof(number_buffer), "%1.15g", d);
/* Check whether the original double can be recovered */ /* Check whether the original double can be recovered */
if ((sscanf((char*)number_buffer, "%lg", &test) != 1) || !compare_double((double)test, d)) if ((sscanf((char*)number_buffer, "%lg", &test) != 1) || !compare_double((double)test, d))
{ {
/* If not, print with 17 decimal places of precision */ /* If not, print with 17 decimal places of precision */
length = sprintf((char*)number_buffer, "%1.17g", d); length = snprintf((char*)number_buffer, sizeof(number_buffer), "%1.17g", d);
} }
} }