Cleanup uses of sprintf so we can deprecate it.

Change-Id: I3ed15a7c261adf01c310bb58ff7ce836ea400bba

1 files changed, 3 insertions, 1 deletions

diff --git a/libfec/fec_read.cpp b/libfec/fec_read.cpp
index 2d29da8e..0f5ec998 100644
--- a/libfec/fec_read.cpp
+++ b/libfec/fec_read.cpp
@@ -47,7 +47,9 @@ static void dump(const char *name, uint64_t value, const uint8_t *data,
 
         for (size_t m = 0; m < bytes_per_line; ++m) {
             if (n + m < size) {
-                sprintf(&hex[m * 3], "%02x ", data[n + m]);
+                ptrdiff_t offset = &hex[m * 3] - hex;
+                snprintf(hex + offset, sizeof(hex) - offset, "%02x ",
+                         data[n + m]);
 
                 if (isprint(data[n + m])) {
                     prn[m] = data[n + m];