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-rw-r--r--src/session.cpp17
1 files changed, 12 insertions, 5 deletions
diff --git a/src/session.cpp b/src/session.cpp
index d6761d5..b619e56 100644
--- a/src/session.cpp
+++ b/src/session.cpp
@@ -404,25 +404,32 @@ void olm::Session::describe(char *describe_buffer, size_t buflen) {
describe_buffer[0] = '\0';
char *buf_pos = describe_buffer;
- buf_pos += snprintf(
+ int size;
+
+ size = snprintf(
buf_pos, buflen - (buf_pos - describe_buffer),
"sender chain index: %d ", ratchet.sender_chain[0].chain_key.index
);
+ if (size > 0) buf_pos += size;
- buf_pos += snprintf(buf_pos, buflen - (buf_pos - describe_buffer), "receiver chain indcies:");
+ size = snprintf(buf_pos, buflen - (buf_pos - describe_buffer), "receiver chain indices:");
+ if (size > 0) buf_pos += size;
for (size_t i = 0; i < ratchet.receiver_chains.size(); ++i) {
- buf_pos += snprintf(
+ size = snprintf(
buf_pos, buflen - (buf_pos - describe_buffer),
" %d", ratchet.receiver_chains[i].chain_key.index
);
+ if (size > 0) buf_pos += size;
}
- buf_pos += snprintf(buf_pos, buflen - (buf_pos - describe_buffer), " skipped message keys:");
+ size = snprintf(buf_pos, buflen - (buf_pos - describe_buffer), " skipped message keys:");
+ if (size >= 0) buf_pos += size;
for (size_t i = 0; i < ratchet.skipped_message_keys.size(); ++i) {
- buf_pos += snprintf(
+ size = snprintf(
buf_pos, buflen - (buf_pos - describe_buffer),
" %d", ratchet.skipped_message_keys[i].message_key.index
);
+ if (size > 0) buf_pos += size;
}
}